Scholar QV™, Scholar III™ & GeoScholar QV™ Heat ......All Scholar heat pumps and air...

ENGINEERING DESIGN MANUAL

SCHOLAR COMBO 2/2011 rev.3supersedes 5/2010-2

Models VACA & VACSA (Scholar QV), VAIA & VAISA (Scholar III) &

VWCA & VWCSA (GeoScholar QV) 2, 2.5, 3, 3.5, 4 & 5 Tons

IMPORTANT!! Read all instructions before use. Retain this manual for future reference. This equipment should be installed and serviced only by a trained professional HVAC service person.

Due to continuous product improvement, use only the current issue of this manual to specify the Marvair® Scholar QV™, Scholar III™ or GeoScholar QV™ Heat Pump or Air Conditioner.

Unitary Air-Conditioners ACUnitary Air-Source Heat Pumps HP

Scholar QV™, Scholar III™ & GeoScholar QV™

Heat Pumps & Air Conditioners(CSI 15740)

Manufactured By:Marvair® Division of AIRXCEL®, Inc.

P.O. Box 400 • Cordele, Georgia 31010156 Seedling Drive • Cordele, Georgia 31015

(229) 273-3636 • Fax (229) 273-5154E-mail: [email protected] • Internet: www.marvair.com

Scholar III without Free Blow Plenum

Scholar Combo EDM 2/2011 rev. 3 15700 - 2 HVAC Equipment

SECTION 15700

HEaTINg, VENTIlaTINg aNd aIr CONdITIONINg EquIpmENT

ENgINEErINg dESIgN maNual

fOr SCHOlar qVTm & SCHOlar III™ HEaT pump aNd aIr CONdITIONEr, mOdElS VaCa, VaCSa, VaIa & VaIaSa aNd

gEOSCHOlar qV™ HEaT pump mOdEl VWCa & VWCSa (CSI 15740)

TablE Of CONTENTS

Article Description Page1.01 ModelIdentification ................................................... 51.02 General Operation ..................................................... 51.03 Standard Controls ..................................................... 91.04 Optional Controls .....................................................111.05 Other Options & Accessories ......................................111.06 Thermostat & Sub-bases ...........................................121.07 Air Distribution Options ............................................141.08 Heating Options .......................................................171.09 Humidity Control Option ...........................................181.10 Ventilation Options ...................................................181.11 Cooling Options .......................................................221.12 Weights/Dimensions .................................................231.13 Location Preparation ................................................291.14 Outdoor Louvers ......................................................32Appendix A Scholar/GeoScholar QV HP and A/C Typical Installation Detail .. A-1Appendix B Ratings/Data - Scholar III ....................................... B-1Appendix C Ratings/Data - Scholar QV ...................................... C-1Appendix D Ratings/Data - GeoScholar QV ................................. D-1Appendix E Submittal Forms - Scholar III .................................. E-1Appendix F Submittal Forms - Scholar QV ...................................F-1Appendix G Submittal Forms - GeoScholar QV ............................ G-1AppendixHGuidelineSpecifications-ScholarIIIHeatPumps ....... H-1AppendixI GuidelineSpecifications-ScholarIIIAirConditioners .. I-1AppendixJ GuidelineSpecifications-ScholarQVHeatPumps ....... J-1AppendixKGuidelineSpecifications-ScholarQVAirConditioners . K-1AppendixLGuidelineSpecifications-GeoScholarQVHeatPumps ..L-1


SECTION 15700

HEaTINg, VENTIlaTINg aNd aIr CONdITIONINg EquIpmENT

Marvair® intends this Engineering Design Manual to be used as a reference in the designing and selection of the Scholar line of heat pumps and air conditioners. TheScholarlineincludestheScholarIIIhighefficiencyairtoairheatpumpsandair conditioners, the Scholar QV air to air heat pumps and air conditioners and the GeoScholar QV water to air heat pumps. A brief description of these units can be found at the end of this section. In addition, there are other pieces of literature that may assist in the design process. An overview of the products is found in the Product Data Sheet and complete installation & start-up instructions are in the Installation & Start-up manual. The following is a brief summary of the Scholar units.

All Scholar heat pumps and air conditioners are available in cooling capacities of 2, 2-1/2, 3, 3-1/2, 4 & 5 tons. All units can be built with a number of ventilation options to meet indoor air requirements. See section 1.10 for a description of the ventilation options.

Scholar III air to air heat pumps and air conditioners are Marvair’s latest and most energyefficientHVACsystemsforheating,coolingandventilatingclassrooms.Theunits feature:• HighefficientoperationwithEER’supto12.0andCOP’supto3.40.• Quiet.45dBAinanunductedapplication.Soundslevelsof40dBAorlesscan

be obtained with a ducted supply and installation in a closet.• R410Arefrigerant• Twostagecompressor(modelsVAISA)forimprovedenergyefficiencyand

better comfort. Integrated part load value of up to 14.9. See compressor section for a complete description of the two stage compressor.

• Electronicallycommutatedindoorblowermotordeliverstherequiredairflowregardless of the static pressure at minimum sound levels.

• AvailableasaheatpumporairconditionerScholar QV air to air heat pumps and air conditioners• EfficientoperationwithEER’supto9.40andCOP’sof3.00.• Quiet.Approximately50dBAinanunductedapplication.Soundslevelsof40

dBA or less can be obtained with a ducted supply and installation in a closet.• R410Arefrigerant• Singleandtwostagecompressors.GeoScholar QV water to air heat pumps• EfficientoperationwithEER’supto18.0andCOP’supto3.9.• Canbeusedineitheragroundwaterorcoolingtowerloop.• Quiet.Approximately45dBAinanunductedapplication.Soundslevelsof40

dBA or less can be obtained with a ducted supply and installation in a closet.• R410Arefrigerant• Onlyavailableasaheatpump.• Singleortwostagecompressors.

Dehumidification. To reduce humidity levels in the classroom Marvair® offers two methodsofreducingthehumidity–HotGasReheat(HGR)andElectricReheat.Both methods can lower humidity levels, but neither method can add humidity to the classroom. Typically, the minimum RH achievable by either method is 55%.


Marvair recommends that when either HGR or electric reheat is required, the Marvair GreenWheel®ERVbeusedtoenhancethetotaldehumidificationcapacityof the unit. The hot gas reheat and the electric reheat are available on all Scholar heat pumps and air conditioners.

The color brochure entitled, “Architectural Extruded Aluminum Louvers” has numerousphotosillustratingthevarietyofstyles,colors,andconfigurationsoftheoutdoor louvers. Marvair® custom louvers allow the designer to select a louver to match the fenestration of the school.

Finally, please do not hesitate to contact your Marvair representative or the factory if you have any questions.

Performancedata,electricalinformation,shippingweightsandfiltersizescanbefound at the end of this guideline in Appendicies B, C and D. Performance data at various ambient air and indoor temperatures and AutoCad® typical installation details can be found on the Marvair® website at www.marvair.com.

Tominimizesoundlevelswithintheclassroom,certainoptionsshouldbeselected.These options are designated by throughout the guideline.


1.01MoDelIDentIfIcatIon

TheScholarheatpumpandairconditioneridentificationnumberingsystemisshown below.

1.02GeneraloperatIon

A. Scholar III ™ and Scholar QV™ air source and GeoScholar QV™ water source heat pumps and air conditioners are designed to provide quiet comfort to the classroom.

In cooling mode, the compressor will cycle on to provide the cooling required.Thesystemprovidescooling,dehumidificationandaircirculation.

Inheatingmodethecompressor(heatpumponly)willcycleontoprovidethe heating required. The system provides heating and air circulation. At lower outdoor temperatures, additional heating capacity may be provided by an optional electric resistance heater or a hot water coil.

Model Identification - Scholar QV

Source

VerticalAirIndoor

Nominal Cooling

System TypeHP = Heat PumpAC = Air Conditioner

Power SupplyA = 208/230V,1,60HzC = 208/230V,3,60HzD = 460V,3,60Hz

ConfigurationN = Manual Damper (std)H = GreenWheel® ERVB = Motorized DamperJ = Power Vent with

Motorized Damper

Special OptionsG = Hot Gas Reheat/Dehumidification

• • • • •VAI • III

ConfigurationIII = Scholar III

2-StageCompressor

S

Refrigerant R-410A

A

24 = 24,000 BTUH30 = 29,000 BTUH36 = 35,000 BTUH40 = 40,500 BTUH48 = 48,000 BTUH60 = 59,000 BTUH

Heat – kW000 - No Heat050 = 5 kW075 = 7.5 kW100 = 10 kW150 = 15 kW990 = Hot Water

Model Identification - Scholar III

Model Identification - GeoScholar QV

Source

VerticalAirIndoor

Nominal Cooling

System TypeHP = Heat PumpAC = Air Conditioner



Motorized Damper

Special OptionsG = Hot Gas Reheat/Dehumidification

• • • • •VAC • QV

ConfigurationQV

2-StageCompressor

S

Refrigerant R-410A

A


Heat – kW000 - No Heat050 = 5 kW075 = 7.5 kW100 = 10 kW150 = 15 kW990 = Hot Water

Source

VerticalWater

Nominal Cooling

System TypeHP = Heat Pump



Motorized Damper Special OptionsG = Hot Gas Reheat/Dehumidification

• • • • •VWC HP III

ConfigurationQV

2-StageCompressor

S

Refrigerant R-410A

A


Heat – kW000 - No Heat050 = 5 kW075 = 7.5 kW100 = 10 kW150 = 15 kW

Series1 = Revision #1

•

Q = GreenCube™ ERV


Ventilationairmaybeprovidedbythemanualormotorizedfreshairvent,power vent or GreenWheel® ERV. These ventilation systems operate when there is a call for cooling or heating or independently to provide fresh air.Notethatwiththemanual,motorizedfreshairventandthepowervent options, if the compressor is not operating and the indoor blower is running, unconditioned outside air is being introduced into the classroom. The GreenWheel ERV provides tempered outside air. See section 10.0 for a complete description of the ventilation options.

Control systems are either a remote external thermostat, internal thermostat, or a direct digital control interfacing with the building automationsystem(BAS).

figure1a.conditionedairflowandfreshairflowforScholarIII

figure1b.conditionedairflowandfreshairflowforScholarQV

Indoor Blower Supply Air

Axial FanOutdoor Air Mover

Fresh Air IntoClassroom

Return Air

Return Air

Outdoor Coils

Indoor Coils

GreenWheel® ERV

Exhaust Airfrom Classroom


figure1c.conditionedairflowandfreshairflowforGeoScholarQV

B. Testing and approvals. AllScholarairsourceheatpumpsandairconditionerstestedandcertified

in accordance with ARI standard 390. All water source GeoScholar QV heat pumpsaretestedandcertifiedinaccordancewithISOstandard13256-1-98.

C. Primary components.1. Compressor & refrigerant - All Scholar™ units use a fully hermetic

scrollcompressortominimizesoundlevelsandmaximizeefficiency.

Scholar III – Single stage on models VAIA and two stage on VAISA. R-410A refrigerant Scholar QV – Single stage on models VACA and two stage on VACSA. R-410A refrigerant

GeoScholar QV - Single stage on models VWCA and two stage on VWCSA. R-410A refrigerant

2. Indoor Air Mover. Scholar III - electronically commutated motor. The motor automatically

adjustsitsspeedtomaintaintheproperairflowoverawiderangeof external static pressures. The motor consumes 60-80 watts compared to 400 watts for a typical induction motor. The motor is fully encapsulated to prevent moisture from damaging the internal electronics.

Scholar QV- Electronically commutated motor. The motor automatically adjustsitsspeedtomaintaintheproperairflowoverawiderange

of external static pressures. The motor consumes 60-80 watts compared to 400 watts for a typical induction motor. The motor is fully encapsulated to prevent moisture from damaging the internal electronics.


GeoScholar QV- The indoor blower assembly consists of two, direct drive, centrifugal indoor blowers and a single motor on the 2, 2½, 3 and 3½ ton units. The 4 & 5 ton units have an electronically commutated blower motor. The EC motor automatically adjusts its speedtomaintaintheproperairflowoverawiderangeofexternalstatic pressures. The motor consumes 60-80 watts compared to 400 watts for a typical induction motor. The motor is fully encapsulated to prevent moisture from damaging the internal electronics.

3. Outdoor Air Mover. ScholarIII–Highefficiencyaxialfanon2,2-1/2,3&3-1/2tonunits.

Dual blowers with an electronically commutated motor on the 4 & 5 ton units.

Scholar QV - A completely integrated, dynamically balanced, backward curvedmotorizedimpellerisstandard.

GeoScholar QV – Not applicable

4. RefrigeranttowaterHeatexchanger(GeoScholarQVheatpumpsonly)Highefficiencycoaxial,tube-in-tubeheatexchangerwithcupronickelwater coil.

5. Indoor/Outdoor Coils. Both the indoor and outdoor coils on all Scholar unitsareconstructedoflanced,aluminum,finsmechanicallybondedtorifled,seamlesscoppertubes.

D. Cabinet. Front and side panels are constructed of 16 gauge sheet metal with a

greypolyesterfinishcoveringthefrontandsidesofthecabinetexteriorsurface.Thefinishishighlyresistanttoabrasion,metalmarking,staining,pressure mottling and requires minimal maintenance. All outside cabinet panels are fastened with a tamper-resistant Torxhead™ sheet metal screws.

Scholar III - The side panels and the front doors are of double wall construction consisting of a 16 gauge steel exterior panel, an interior panel of perforated 20 gauge steel with 1-1/4” insulation sandwiched betweenthesteelpanels.Theinsulationismadefromnaturalfibers;itdoesnotcontainanyfiberglassanddoesnotitchorcauseskinirritation.Both the insulation and the facing are treated with an EPA registered anti-microbial agent and are designed to withstand damage from mechanical abrasion and from air erosion during service. The perforated metal and insulationfunctionasaHelmholtzresonatortoabsorbsound.

Scholar QV – All exterior panels are lined with a 1-1/2 “ acoustical and thermal insulation. Side panels are double wall, front panels are single wall.Frontandbackpanelsarelinedwithaflexibleresilientacousticalandthermalinsulationcomposedofglassfiberswithadurableblackcoating


with high density skin and light density core to enhance sound absorption at high and low frequencies. The insulation is designed to withstand damage from mechanical abrasion and from air erosion during service.

An optional, two-part hinged sound panel that mounts on the front of the cabinet to reduce sound levels is available.

E.SoundReductionPanel.(ScholarQV’sandGeoScholarQV’sonly) Tominimizethesoundlevelintheclassroom,anoptionalsoundreduction

panelmaybeutilized.ThetwopartpanelprovidesanadditionalbafflebetweentheScholarQV™unitandtheclassroom.Thehingedpanelsarefieldinstalled to the front of the Scholar QV heat pump. Easyandquickaccesstothereturnairfilterisprovided by the hinged panels - removal of the panelsarenotrequiredforfilteraccess.Thesoundreduction panel can reduce the sound level up to 2 dbA and can be used with any ventilation or ducting option.

1.03StanDarDcontrolS

Scholar heat pumps and air conditioners are equipped with the following controls as described below.

1.programmablelogiccontroller(plc)Microprocessor All Scholar heat pumps use a factory installed PLC microprocessor

to control the operation, the safety switches and function options. LED’s show operational status and provide assistance with diagnosis iftroubleshootingiseverrequired.Variouscontrolfunctionsarefieldselectable. The PLC microprocessor provides improved reliability because ofthereductionofcomponents,thecomponentsutilizedaremoredurableandthecontrolboxwiringhasbeensimplified.Pertinentstatisticaldataabout the life of the refrigeration system can be accessed through the PLC.

The PLC microprocessor provides for the following control and operation functions:

• anti-Shortcycletimer - Prevents the compressor from destructive short cycling due to momentary power interruptions. One of three timeintervalscanbefieldselected.

• Defrosttimer(airtoairheatpumpsonly) - Adjustable defrost control that is based upon both time and temperature. The time interval is adjustable from 30 to 90 minutes.

• BaScontrol - Provides 24 VAC coil to control operation from Building


AutomationSystem(BAS).Note-anadditionalBAScontrolrelaycanbe added when 120 or 240 VAC coils are required.

The unit control system is factory wired to operate upon an input signal from any appropriate 24 VAC control thermostat or DDC control system. If unit shutdown is desired during unoccupied periods of the temperature controlled space, it may be accomplished by the following: the controls contractormustprovideasetofcontacts(24VACpilotduty)betweenterminalsE1andE2.WhenthefieldsuppliedcontactsbetweenE1andE2are closed the system will shutdown.

The indoorblowerfanspeedcontrolonthe2,2½,3&3½tonGeoScholarunits provides adjustable air volume from the indoor blower. Not required on the Scholar III, the Scholar QV and the 4 & 5 ton GeoScholar QV units units because of the electronically commutated motor automatically adjusts the fan speed.

2.HighandlowrefrigerantpressureSwitches&optional(Heatpumponly)IndoorcoilfreezeStat

These switches render the compressor and outdoor fan motor inoperative whenever the limits of the high or low pressure switches are exceeded or indoorcoilfreezeup.Intheeventofhighpressure,theunitwillturnoffand lockout.

Thelowpressure(A/C)orlossofcharge(HP)switchandindoorcoilfreezestatisbypassedfor8-1/2minutesduringeachstart-up.Thesystemwilllockoutifthelowpressureswitchorindoorcoilfreezestatremains open after the 8-1/2 minute by-pass at start-up or if either device opens three times within one hour.

The high and low pressure switches are resettable at the wall thermostat or by turning power off and then on to the unit. A fault LED located on the PLC indicates that a lockout has occurred and whether it is due to highorlowrefrigerantpressureorindoorcoilfreeze-up.TheLEDwillflashoncepersecondforlowpressureorindoorcoilfreezeuplockoutand twice per second for high pressure lockout.

3.Heatrelatedcontrols The outdoorthermostat(airtoairheatspumpsonly), factory set

at 40°F, determines the temperature at which the supplemental electric heat(orwetheat)turnsontoheattheclassroom.The temperature set pointcanbeadjustedinthefieldforlocalconditions.Whentheoutdoorthermostat activates wet heat, the compressor simultaneously turns off.

The electricheatcontrol(heatpumponly) allows the user to select whether the electric heat operates simultaneously with the compressor. The units are wired at the factory for simultaneous operation. For non-simultaneous operation, either a jumper wire is used or a toggle switch controls this function, depending on the model.

The electricheatduringdefrost(airtoairheatpumpsonly) allows


the user to select whether electric heat operates when the heat pump enters into the defrost mode. NOTE: for operation of the electric heat duringdefrost,theelectricheatcontrolmustbeconfiguredtoallowsimultaneous operation of the electric heat and the compressor.

4.Disconnect A disconnect is standard on all Scholar heat pumps and air conditioners

and on all GeoScholar heat pumps..

1.04optIonalcontrolS

All Scholar and GeoScholar units have the following control options available.

1. The springwoundtimerisafieldinstalledkitusedtoenableoperationof the unit for up to six hours, or override the building automation system. (p/n08557)

2. The hardstartkitisfieldinstalledandusedonsinglephasepowermodels to overcome hard starting conditions. Note: The compressor manufacturer generally does not recommend hard start kits for use on scroll compressors.

1.05otHeroptIonS&acceSSorIeS

1. A condensatepananddrainlineheaters(onlyfortheScholarQVandScholarIIISeries) are required for heat pump installations north of the 34° latitude line, shown in Figure 2, and other sites where condensatemayfreeze.The pan heaters prevent the condensate from freezinginthecondensatepanandthedrainlineheaterspreventitfromfreezinginthedrainlines.(Note:condensatedrainlineheatersarenotrequiredonScholarIIIunits.)Theseheaters are factory installed and no fieldinstallationisrequired.Seepricepagesforpartnumbers.

figure2.panHeatersandcondensateHeatersmustbeInstalledinUnitsnorthofthe34°northlatitudelineShownandnotedbythefollowingcities:columbia,Sc;atlanta,Ga;Gadsden,al;tupelo,MS;pineBluff,ar;lubbock,

tX;roswell,nM;phoenix,aZ;andlosangeles,ca.

34o North Latitude34o North Latitude


2. The trimpiecemounts on the rear vertical edge of the cabinet of the Scholar&GeoScholarunitsandfillsinthegapbetweentheunitandthewall. See 1.15A for details.

3. A basestandallowstheunittoberaisedoffthefloorforcustodialpurposes or when the existing window sill is more than 33” above the floor.See1.15Bfordetails.

4. The anti-microbiallightisafieldorfactoryinstalledoption.Agermicidal UV light destroys toxic bacteria, viruses and mold on the indoor air coil.

1.06tHerMoStatS

thermostatsforairconditionersandheatpumpswithsinglestageheat(noelectricheat).Unitswith2stagecompressorsmusthaveathermostatwith2stagecooling.

1. Digital, non-programmable thermostat. 1 stage heat, 1 stage cool. Fan switch: Auto & On. Manual changeover system switch: Cool-Off-Heat. Low temperature protection. °F or °C selectable. Thirty minute power loss memory retention. Marvair P/N 50121.

2. Digital, seven day programmable thermostat. 1 stage heat, 1 stage cool. Fan switch: Auto & On. Auto-changeover. Keypad lockout. Non-volatile program memory. Title 24 compliant. Marvair P/N 50123.

3. Digital, non-programmable thermostat. One stage cool/One stage heat. Manual or auto changeover. Fan mode: Auto or On. Permanent retention of settings upon power loss. Field adjustable temperature calibration. Max heat and minimum cool set points. Adjustable temperature differential. Remote sensor capable. Keypad lock out. Status LED. °F or °C selectable. Marvair P/N 50186

thermostatsforheatpumpswithtwostageheat.Unitswith 2stagecompressorsmusthaveathermostatwith2stagecooling.

1. Digital, 7 day, 5-2 and 5-1-1 day programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Title 24 compliant. Marvair Part number 50107

2. Digital, 7 day, 2 occupied & 2 unoccupied periods for each day of the week programmable thermostat. Three stage heat/Three stage cool. Manual or auto changeover. Fan: Auto & On. Ten year retention of programming settings and 48 hour clock and day settings on power loss. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status


LED. °F or °C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Marvair Part number 50248.

3. Digital, non-programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Marvair Part Number 50252.

4. MAR7000 Thermostat/Controller. The MAR7000 thermostat/controller is a stand alone, self-programming HVAC controller designed to optimizeperformanceofMarvair’sheatpumpsandairconditioners.Itcan function as an independent controller or used in conjunction with a BACnet network.

With built-in temperature and humidity sensors, motion sensing and an optional CO2 detection sensor, the MAR7000 can control: • Singleor2-stageairconditionersorheatpumpswithsupplemental

hot water or electric heat, • Hotgasdehumidificationoperation, • Aneconomizercycle,and • Marvair’svariousventilationoptionsincludingtheMarvair

GreenWheel® Energy Recovery Ventilator.The intelligent occupancy anticipation feature of the MAR7000 automatically programs occupied and unoccupied settings for temperature, humidity, and ventilation requirements. The ventilation control can be based on occupancy, demand, time, or a combination of these features. When vacant, the thermostat automatically reduces the run time of the unit and adjusts ventilation to save energy. The intelligent occupancy feature can be turned off, and the MAR7000 can be connected to a BACnet control system for remote control and operation of Marvair heat pumps or air conditioners. The MAR7000 thermostat includes a precise, real time clock with capacitor back up to maintain the program and set points for extended power outages.

Features include: • User-friendlyEnglish-languagemenus(noobscurenumericcodes)

on a 64 x128 pixel, dot-matrix LCD display with 5 buttons for data selection and entry, • Built-in,factory-testedlibrariesofconfigurableapplicationcontrol

sequences, • Schedulesthatcaneasilybesetuniquelybyweekdays(Mon- Fri.),weekend(Sat.–Sun.),entireweek(Mon.–Sun.),individual days, and/or holidays, • SixOn/Offandindependentheatingandcoolingsetpointperiods

are available per day, and • Threelevelsofpassword-protectedaccess(user/operator/

administrator)preventdisruptionofoperationandconfiguration


1.07aIrDIStrIBUtIonoptIonS

The conditioned air from the Scholar units may be discharged directly into the room with a free blow plenum or ducted. Ducting improves the air distribution in the classroom, decreases hot or cold spots and reduces the sound level of the unit. The insulated freeblow plenum, shown in Figure 3, should be used when a discharge plenum to supply the room directly is required.

1. freeblowairDistributionforScholarQVandGeoScholarQVunits.Thefrontsupplygrille(s)hasadjustablelouversthatallowtheairflowtobe tailored to the room. Optional left and right side supply grilles can be installed on the Scholar QV and the GeoScholar QV freeblow plenums and provide conditioned air along the exterior wall. The side grille louvers are adjustablehorizontally.Allgrilleshaveaclearbrushedaluminumfinish.

The freeblow plenums for use with Scholar QV and GeoScholar QV units with electric heat or no heat range in height from a minimum of 16” to 40” in one inch increments. Freeblow plenums with hot water heat range in height from a minimum of 18” to 40” in one inch increments. The hot water coilisfactoryinstalledintheseplenumsandthecompleteassemblyisfieldinstalled on the top of the Scholar QV and GeoScholar QV units. Each hot water coil has a 24 volt thermostat imbedded in the coil. The purpose of the thermostat is to sense coil temperature and to turn off the indoor air mover if the thermostat senses temperature of 32° or less. This is designed to prevent thewater in thecoil fromfreezing. Aknockout in thetopof theScholarQV and GeoScholar QV units is provided and enables wiring from the wet heat coils to be run to the control center in the Scholar QV and GeoScholar QV units. Note: GeoScholar QV units are not availble with hot water heat.

2. Scholar III freeblowairDistribution. The front supply grilles have adjustablelouversthatallowtheairflowtobetailoredtotheroom.Theleftandright side supply grilles are used in all freeblow plenums and provide conditioned airalongtheexteriorwall.Allgrilleshaveaclearbrushedaluminumfinish.

thermostatGuards1. Clear thermostat guard with keylock & clear plastic cover & base.

For use with 50121, 50123, 50186, 50107 and 50252 thermostats. Marvair Part Number 50092.

2. Clear thermostat guard with keylock & clear plastic cover & base. For use with 50248thermostat. Marvair Part Number 50119.

Humiditycontroller1. Digital humidity controller. To be used with units with Hot Gas

or electric reheat. Programmable dehumidistat, humidistat and ventilationcontrol.Timeofdaycanbesetfordehumidifier,humidifierorventilationtorun.Autochangeoverforhumidificationordehumidification.Permanentmemoryretentionofsetpoints.Humiditysensorcanbefieldcalibrated.High&lowdehumidificationset points. Outdoor temperature and humidity sensor included. ºF or ºC selectable. Marvair P/N 50254.


The freeblow plenums for use with Scholar III heat pumps and air conditioners with electric heat, hot water heat and no heat are 12-1/2” high. Electric heat isfieldinstalled.Inhotwaterplenums,thehotwatercoilisfactoryinstalledintheplenumsandthecompleteassemblyisfieldinstalledonthetopoftheScholar III unit. Each hot water coil has a 24 volt thermostat imbedded in the coil. The purpose of the thermostat is to sense coil temperature and to turn off the indoor air mover if the thermostat senses temperature of 32° or less. Thisisdesignedtopreventthewaterinthecoilfromfreezing.Aknockoutinthe top of the Scholar III unit is provided and enables wiring from the electric heat or wet heat coils to be run to the control center in the Scholar III unit.

Extensionsthatfitontopoftheplenumareavailableinvariousheightstoextendtheplenumflushwiththeceiling.TheseextensionsmatchthecoloroftheScholarIIIunitandtheplenumandgiveafinishedappearancetotheinstallation.

figure3.freeblowplenumfortheScholarQVandGeoScholarQVUnits

WarNINgTHE AIR DISTRIbUTION SySTEM, WHICH IS fIELD SUPPLIED AND INSTALLED DOWNSTREAM Of THE SPECIfIED DUCTED PLENUM, MUST bE ENGINEERED TO ASSURE SUffICIENT AIRfLOW, EVEN UNDER ADVERSE CONDITIONS, SUCH AS DIRTy fILTERS. THE INfORMATION PROVIDED IN APPENDIX b SHOULD bE USED TO DESIGN THE AIR DISTRIbUTION SySTEM DUCT SIzE LEAVING THE SCHOLAR QV™ UNIT, kEEPING THE EXTERNAL STATIC PRESSURE TO A MINIMUM.

APPLICATIONS USING DUCT WORk SHOULD bE DESIGNED AND INSTALLED IN ACCORDANCE WITH THE CURRENT EDITION Of NATIONAL fIRE PROTECTION ASSOCIATION CODES AND STANDARDS 90A AND 90b. THE DUCT SySTEM MUST bE ENGINEERED TO INSURE SUffICIENT AIRfLOW THROUGH THE UNIT TO PREVENT OVER-HEATING Of THE HEATER ELEMENT. THIS INCLUDES PROPER SUPPLy DUCT SIzING, SUffICIENT QUANTITy Of SUPPLy REGISTERS, ADEQUATE RETURN AND fILTER AREA. DUCTWORk MUST bE Of CORRECT MATERIAL AND MUST bE PROPERLy INSULATED. THE DUCT WORk MUST bE CONSTRUCTED Of GALVANIzED STEEL WITH A MINIMUM THICkNESS Of .019. DUCTWORk MUST bE fIRMLy ATTACHED, SECURED AND SEALED TO PREVENT AIR LEAkAGE. DO NOT USE DUCT LINER ON INSIDE Of SUPPLy DUCT WITHIN fOUR fEET Of THE UNIT.

GALVANIzED METAL DUCT EXTENSIONS SHOULD bE USED TO SIMPLIfy CONNECTIONS TO DUCTWORk AND GRILLES. USE fAbRIC bOOTS TO PREVENT THE TRANSMISSION Of VIbRATION THROUGH THE DUCT SySTEM. THE fAbRIC MUST bE U.L. RATED TO A MINIMUM Of 197°f. .

Hot Water Outlet �Standard 7/8" O.D.�(Hot Water Plenum Only)

Hot Water Inlet �Standard 7/8" O.D.�(Hot Water Plenum Only)

Optional Side�Discharge Grille

Blank Off Plate��


3. ScholarIIIDuctedairDistribution. A ducted plenum should be used when the supply air is to be ducted as shown in Figure 4. The ducted plenums for use with Scholar III heat pumps and air conditioners with electric heat, hot water heat and no heat are 12-1/2” high. Electric heat is fieldinstalled.Inhotwaterplenums,thehotwatercoilisfactoryinstalledintheplenumsandthecompleteassemblyisfieldinstalledonthetopofthe Scholar III unit. Each hot water coil has a 24 volt thermostat imbedded in the coil. The purpose of the thermostat is to sense coil temperature and to turn off the indoor air mover if the thermostat senses temperature of 32°orless.Thisisdesignedtopreventthewaterinthecoilfromfreezing.A knockout in the top of the Scholar III unit is provided and enables wiring from the electric heat or wet heat coils to be run to the control center in the Scholar III unit.

Extensionsthatfitontopoftheplenumareavailableinvariousheightstoextendtheplenumflushwiththeceiling.TheseextensionsmatchthecoloroftheScholarIIIunitandtheplenum,hidetheductandgiveafinishedappearance to the installation.

AppendixBshowstheallowablestaticpressureandairflowrequirementsfor the various models. When the hot water heat plenum is ordered, it comes with the factory assembled inside the plenum. Access is through the removable front and top panels on the plenum. A knockout in the top of the cabinet is provided, and enables wiring from the wet heat coils to be run to the control center in the lower compartment of the cabinet.

4. ScholarQVandGeoScholarQVDuctedairDistribution. A ducted plenum should be used when the supply air is to be ducted as shown in Figure 4. The insulated ducted plenum can vary in height to accommodate variousceilingheights.Ductcanbeeasilyinstalledtotheflangedrectangular opening on the top. Ducting of the conditioned air can significantlyreducesoundlevelsintheclassroom.

The minimum height of the ducted plenum for use with electric heat or no heat is 16”. The minimum height of the ducted hot water plenum is 18”. Both plenums are available in multiple heights in one inch increments up to 40”. The hot water coil is factory installed in these plenums and the com-pleteassemblyisfieldinstalledonthetopoftheScholarQVunits. Hot wa-ter heat is not available on GeoScholar units. Appendix B shows the allow-ablestaticpressureandairflowrequirementsforthevariousmodels.

When the hot water heat plenum is ordered, it comes with the coil, factory assembled, inside the plenum. Each hot water coil has a 24 volt thermostat imbedded in the coil. The purpose of the thermostat is to sense coil temperature and to turn off the indoor air mover if the thermostat senses temperature of 32°F or less. This is designed to prevent the water in the coilfromfreezing.Accessisthroughtheremovablefrontandtoppanelsonthe plenum.

A knockout in the top of the cabinet is provided, and enables wiring from the wet heat coils to be run to the control center in the lower compartment of the cabinet.


ImpOrTaNTWHEN THE duCTEd plENum OpTION IS SElECTEd, THE SCHOlar qV™ uNIT’S plENum aSSEmbly muST bE INSTallEd IN fINal pOSITION bEfOreSUSpenDeDceIlInGtBarSUpportSarepUtInplace.

5. conversionofafreeblowplenumtoaDuctedplenum(ScholarQVandGeoScholarQVunitsonly).Tofieldconvertanyfreeblowplenumtoa ducted plenum:

a. Remove the blank off plate from the top of the plenum.b. Remove the front supply grille and replace it with the blank off plate.c. Swap the front and back panels of the plenum. This puts the blank off

plate facing the exterior wall and not visible from the classroom.d. Removetheperimeterductflangefromtheinsideoftheplenumand

attach it to the top of the plenum.

figure4.plenuminDuctedconfiguration

1.08HeatInGoptIonS

The Scholar units have electric resistance and hot water heat options as described below. GeoScholar units only have electric resistance as a supplemental heat option.

1. electricresistanceHeat is installed above the indoor blower outlets as shown in Figure 5. Electric heat is factory installed in the 2 through 3.5 ton Scholar QV and GeoScholar QV unitsandfieldinstalledinthe4&5tonunits.ElectricheatisfieldinstalledonallScholarIIIunits.Electricheatersizesfortheunits are shown in Appendix B. Electric heat can be used with the freeblow plenum or with ducted air distribution options.

figure5.electricStripHeatfigure6.HotWatercoil&plenum

Hot Water Outlet Opening Standard 7/8" O.D.

Hot Water Inlet OpeningStandard 7/8" O.D.

Hot Water Outlet Standard 7/8" O.D.(Hot Water Plenum Only)

Hot Water Inlet Standard 7/8" O.D.(Hot Water Plenum Only)


1.09HUMIDItycontroloptIon

HotGasReheat(SpecialOptionG),acompletefactoryinstalledoption,enablesdehumidificationoffreshairandroomairwithoutovercoolingtheclassroom.Whenthedemandforcoolingissatisfiedandthehumiditycontroller(p/n50057)callsfordehumidification,hotgasisdirectedtoa reheat coil downstream from the evaporator coil to add heat to the dehumidified,chilledairsuppliedtotheclassroom.Hotgasreheatisavailablewithmotorizedfreshair,PowerVentandGreenWheel® ventilation systems.

When outside ventilation air is brought into the classroom by the Scholar or GeoScholar unit, for optimum performance hot gas reheat should be used inconjunctionwiththeGreenWheel®ERV.Whenusedwithamotorizeddamper, hot gas reheat alone may not maintain satisfactory control of the humidity in the classroom over all outdoor conditions. Hot Gas Reheat should not be used with Scholar or GeoScholar units with a manual damper.

1.10VentIlatIonoptIonS

Therearefiveventilationoptionsfromwhichtochoose.Alloptionscomeequippedwithafreshairfilter.(SeeSection1.01ModelIdentificationunder“VentilationPackages”forthemodelconfigurationforeachventilationconfiguration.)

1. Manualfreshair-configurationn(Standard) – This ventilation module is standard with the Scholar and GeoScholar units. Fresh air ventilation by means of a damper with pressure relief provides up to 450cfmofoutsideair,upto40%ofratedairflow.Thedampercanbe manually adjusted at installation to provide the required ventilation airflow.OnScholarIIIunits,manualfreshairventilationincludesafreshairfilterandafreshairintakeblower.

2. Motorizedfreshair-configurationB(optional) – This ventilation optionincludesamotorizeddamper,afreshairintakeblowerandmotor,and a blower motor speed controller. This ventilation option can provide upto450CFMofoutsideair(butnottoexceed40%ofratedairflow)andincludespressurerelief.ThemotorizeddamperandblowersarecontrolledbyaProgrammableLogicController(PLC).ThePLCwilloperatethe damper and ventilation motors ONLY when the Indoor/Evaporator blower is operating. The PLC is factory wired for this operation by a 24 VAC signal to an input terminal on the PLC. The damper is adjusted after

2. HotWaterHeat is installed above the indoor blower outlets as shown in Figure 6. Hot water coil capacities for the unit are shown in Appendices B, C, D. Hot water heat is factory installed in the freeblow or the ducted plenums and is plumbed from the top right side of the plenum. As a standard safety feature, each hot water coil has a protective 24 volt freezestatembedded within it to trigger at 32°F and to turn the unit off.


installation for the required rate of ventilation. An optional 24 VAC, 120 VAC or 240 VAC coil relay may be factory installed to control the damper andmotorfromanexternalsignal,e.g.anEMSorBASsystem.Afilteronthe intake air is standard.

3. powerVent-configurationJ(optional) – This ventilation option includesamotorizeddamper,afreshairintakeblowerandmotor,anexhaust air blower and motor and one blower motor speed controller. The blowerspeedcontrolleroperatesbothblowersintandem.(Anoptionalblower speed control for the exhaust air blower can be factory installed to provide independent control of the exhaust air blower motor and allow pressurizationoftheclassroom).ThePowerVentcanprovideupto450CFMofoutsideair(butnottoexceed40%ofratedairflow)andincludespressurerelief.ThemotorizeddamperandblowersarecontrolledbyaProgrammableLogicController(PLC).ThePLCwilloperatethedamperand ventilation motors ONLY when the Indoor/Evaporator blower is operating. The PLC is factory wired for this operation by a 24 VAC signal to an input terminal on the PLC. The damper is adjusted after installation for the required rate of ventilation. An optional 24 VAC, 120 VAC or 240 VAC coil relay may be factory installed to control the damper and motor fromanexternalsignal,e.g.anEMSorBASsystem.Afilterontheintakeair is standard.

4. GreenWheel®energyrecoveryVentilator-configurationH(optional) The Marvair® GreenWheel®ERVisatotalenergy(bothsensibleandlatent)wheelthatreducesbothconstructionandoperatingcost while ventilating the classroom to ASHRAE 62-1999 requirements. The use of the GreenWheel ERV reduces the energy load of the outside air. Exhausting stale, inside air keeps indoor pollutants and harmful gases to a minimum. The Marvair GreenWheel ERV has been tested and certifiedaccordingtoARIStandard1060.

How It Works - During the summer, cool dry air from the classroom is exhausted through the GreenWheel® ERV to the outside. As the air passes through the rotating wheel, the desiccant becomes cooler and drier. Simultaneously, hot humid air is being pulled across the rotating wheel. The cool, dry desiccant absorbs moisture and heat from the incoming air. The cooler, drier air is mixed with the return air from the classroom and distributed throughout the room.

In the winter, warm moist air is exhausted through the GreenWheel® ERV to the outside. As the air passes through the rotating wheel, the desiccant becomes warmer and absorbs moisture. Simultaneously, cold dry air is being pulled across the rotating wheel. The cold, dry air absorbs heat and moisture from the desiccant. The warmed air is mixed with the return air from the classroom and distributed throughout the room.


Quality Components - The GreenWheel® ERV module consists of a desiccant wheel, two blowers and the drive motor and belt. The two blowers simultaneously pull fresh air from outside and exhaust air from the classroom through the rotating wheel. The air streams are separated by an insulated partition so that the incoming fresh air is not mixed with the exhaust air. Two variable speed blowers ensure that up to 450 CFM of outside air can be brought into the room and the indoor air is properly exhausted. Variable speed blowers permit that the desired quantity of outside air is delivered into the room. Optional independent exhaust air blowercontrolallowspositivepressurizationoftheclassroom,i.e.,moreoutside air can be introduced through the GreenWheel than is exhausted.

WINTER OPERATIONOUTSIDE 17°F DB/15°F WBINSIDE 70°F DB/58°F WB

AIRFLOW: 450 SCFMGreenWheel® ERV

48°F DB43°F WB

17°F DB Fresh Air In15°F WB

Inside Outside

70°F DB 39°F DB Classroom Air Out58°F WB 37°F WB

GreenWheel® ERV

86°F DB71°F WB

95°F DB Fresh Air In75°F WB

Inside Outside

80°F DB 89°F DB Classroom Air Out67°F WB 72°F WB

SUMMER OPERATIONOUTSIDE 95°F DB/75°F WBINSIDE 80°F DB/67°F WB

AIRFLOW: 450 SCFM

GreenWheel®energyrecoveryVentilatorperformanceGreenWheel Performance

95° DB/73° WB Outside 95° DB/80° WB Outside80° DB/67° WB Inside 80° DB/67° WB Inside

SCFM* of Outside Air Energy Conserved, BTUH Energy Conserved, BTUHSensible Latent Total Sensible Latent Total

225 2,900 1,100 4,000 2,900 6,400 9,300250 3,100 1,200 4,300 3,100 6,900 10,000325 3,700 1,400 5,100 3,700 8,100 11,800400 4,200 1,500 5,700 4,200 9,100 13,300450 4,500 1,600 6,100 4,500 9,700 14,200

90° DB/74° WB Outside 80° DB/70° WB Outside 60° DB/54° WB Outside75° DB/64° WB Inside 75° DB/64° WB Inside 70° DB/58° WB Inside

SCFM* of Outside Air Energy Conserved, BTUH Energy Conserved, BTUH Energy Conserved, BTUHSensible Latent Total Sensible Latent Total Sensible Latent Total

225 2800 3600 6400 900 2800 2700 1900 200 2100250 3000 3800 6800 1000 3000 4000 2000 200 2200325 3600 4500 8100 1200 3500 4700 2400 200 2600400 4100 4900 9000 1400 3800 5200 2700 300 3000450 4300 5200 9500 1400 4000 5400 2900 300 3200



225 5600 3300 8900 9300 4900 14200 13000 5700 18700250 6000 3600 9600 10000 5300 15300 14000 6100 14100325 7200 4200 11400 12000 6200 18200 16700 7100 23800400 8100 4600 12700 13500 6800 20300 18900 7900 26800450 8600 4800 13400 14400 7100 21500 20100 8200 28300

*SCFM = Standard Cubic Feet per Minute


GreenWheel Performance

95° DB/73° WB Outside 95° DB/80° WB Outside80° DB/67° WB Inside 80° DB/67° WB Inside

SCFM* of Outside Air Energy Conserved, BTUH Energy Conserved, BTUHSensible Latent Total Sensible Latent Total

225 2,900 1,100 4,000 2,900 6,400 9,300250 3,100 1,200 4,300 3,100 6,900 10,000325 3,700 1,400 5,100 3,700 8,100 11,800400 4,200 1,500 5,700 4,200 9,100 13,300450 4,500 1,600 6,100 4,500 9,700 14,200



225 2800 3600 6400 900 2800 2700 1900 200 2100250 3000 3800 6800 1000 3000 4000 2000 200 2200325 3600 4500 8100 1200 3500 4700 2400 200 2600400 4100 4900 9000 1400 3800 5200 2700 300 3000450 4300 5200 9500 1400 4000 5400 2900 300 3200



225 5600 3300 8900 9300 4900 14200 13000 5700 18700250 6000 3600 9600 10000 5300 15300 14000 6100 14100325 7200 4200 11400 12000 6200 18200 16700 7100 23800400 8100 4600 12700 13500 6800 20300 18900 7900 26800450 8600 4800 13400 14400 7100 21500 20100 8200 28300

*SCFM = Standard Cubic Feet per Minute

For performance of the GreenWheel® ERV at conditions other than those shown, please contact your Marvair® representative or the factory.

5.Greencube energyrecoveryVentilator-configurationQ (ScholarIIIandGeoScholarIIIonly)The Marvair GreenCube ERV

is an enthalpy plate heat exchanger that transfers both sensible and latent energies between outgoing and incoming air streams in a cross flowarrangement.Exceptfortwoairmovers,ithasnomovingparts.Themedia is impregnated with a RC134 polymeric desiccant that exchanges water by direct vapor transfer using molecular transport without the need of condensation. The GreenCube ERV will operate at temperatures as low as -40°F. In addition, the desiccant is a bactericide. Two MERV 6 typefiltersareusedonbothsidesoftheenthalpycore.Thefreshairandexhaust motors have independent speed controllers to permit each of the motors to be regulated independently.

1.10.1 STaNdard VENTIlaTION CONTrOl

The motorizedfreshairdamperwithpowerVentandGreenWheel® ErV ventilation options are equipped with a freshairfanspeedcontrol. The fresh air fan speed control operates both the ventilation intake and exhaust blowers together.

1.10.2 optIonalVentIlatIoncontrolS

Theunitcontrolsystemisfactorywiredtoenergizetheventilationpackageanytimetheindoorfan/blowerisenergized.Ifadditionalcontrol of the ventilation package is desired, it may be accom-plished by the following: The controls contractor must remove the factory installed jumper between terminals V1 and V2 then provide asetofcontacts(24VACpilotduty)betweenterminalsV1andV2.WhenthefieldsuppliedcontactsbetweenV1andV2areclosed,theventilation package will operate when the indoor fan/blower is ener-gized.

The motorizedfreshairdamperwithpowerVentandGreen-Wheel® ErV ventilation options can be equipped with an exhaust fan air speed control, which controls the ventilation exhaust blower independently of the fresh air intake blower.


DemandcontrolVentilation.Afieldorfactoryinstalledcarbondioxide sensor controls the ventilation damper and only opens the damper when CO2 levelsexceedaspecifiedlevel.Demandcontrolventilation saves energy and utility costs by ventilating the class-room based upon occupancy.

Note:Notavailableonmanualfreshairdamper(“B”)configuration.

1.11coolInGoptIonS(GeoScHolarQVonly)

A. General description

Thewatersideeconomizerisawatertoaircoilthatcansaveenergywhencoolingisrequiredandthegroundwatertemperatureissuitable(typically<45°F).Duringtheseconditions,thecompressordoesnotoperate.ThewatersideeconomizerisfactoryinstalledintheplenumoftheGeoScholarheatpump.Thewatersideeconomizercoilisinadrainpanandthecondensate is connected to the condensate piping in the GeoScholar heat pump.Thewatersideeconomizerandahotwatercoilforheatingaremutually exclusive since both are installed in the plenum.

Thewatersideeconomizerconsistsofawatertoaircoil,anadjustableaquastatandsensorbulbandathreewaymotorizedvalve.

B. Sequence of Operation

Upon a call for cooling, a sensor bulb strapped to the incoming water line senses the loop inlet water temperature. If the inlet water temperature is atorbelowthesetpointoftheaquastat,theindoorblowerisenergizedandthethreewaymotorizedvalveopensandroutsthewatertotheeconomizercoil.Iftheloopwatertemperaturerisesabovethesetpoint temperature, the valve will divert the loop water to the water to refrigerant heat exchanger and mechanical cooling will commence.


GeoScHolarHeatpUMpWaterSIDeeconoMIZer

Model

Waterside coilIndoorair coolingcapacity(80°DB/67°WBeat)

eWt(°f) dT flow(gpm)

pressureDrop(ft-H2O)

airflow(Cfm)

pressureDrop(In-H2O) total

(Btu/Hr)Sensible(Btu/Hr)

24

42 8 6.7 3.8 800 0.03 27,076 18,366

45 8 5.7 2.8 0.03 22,976 16,702

42 10 4.9 2.1 0.03 24,684 17,366

45 10 4.1 1.5 0.03 20,762 15,782

30

42 8 7.5 4.7 1000 0.04 30,306 20,884

45 8 6.4 3.4 0.04 25,572 19,004

42 10 5.5 2.6 0.04 27,560 19,742

45 10 4.6 1.8 0.04 23,034 17,958

36

42 8 8.2 5.5 1200 0.06 33,000 23,060

45 8 7.0 4.0 0.06 27,794 21,014

42 10 5.9 3.0 0.06 29,934 21,796

45 10 5.0 2.1 0.06 25,000 19,854

40

42 8 8.5 5.9 1300 0.07 34,266 24,110

45 8 7.2 4.3 0.07 28,844 21,988

42 10 6.2 3.3 0.07 31,054 22,786

45 10 5.1 2.3 0.06 25,936 20,774

8

42 8 9.3 6.9 1550 0.09 37,270 26,674

45 8 7.8 5.0 0.09 31,256 24,354

42 10 6.7 3.8 0.09 33,656 25,202

45 10 5.6 2.7 0.09 28,228 23,076

60

42 8 9.5 7.3 1650 0.10 38,350 27,626

45 8 8.0 5.2 0.10 32,168 25,244

42 10 6.9 4.0 0.10 34,628 26,112

45 10 5.8 2.8 0.10 28,940 23,888

NOTES:

(1)AirsidepressuredropisfortheWatersideEconomizercoil(wet).

(2)ThePlenumenclosurefortheWatersideEconomizeris16.5”highandislocatedontopoftheGeoScholarheat pump.Makesurethattheheatpump,withtheeconomizermountedontop,willbebelowtheceilingheightofthe classroom.

1.12WeIGHtS/DIMenSIonS

A. Dimensions and weights for the Scholar III unit are found in Figure 8. The dimensions and weights for the Scholar QV units are found in Figures 9a and 9b. The dimensions and weights for the GeoScholar QV units are found in Figure 10.


44-1

/8

28-7

/89-

1/8

309-

1/8

13

13-3

/8

10

6-7/

81-

3/8

23

Sup

ply

Air

TO

P V

IEW

R23

-1/2

1

Fro

nt D

oor

Acc

ess

Ope

ning

Ele

ctric

al3/

4 x

1 K

Os

20-1

/4

11-7

/819

-1/4

Con

dens

ate

3/4

x 1

KO

19-1

/421-1

/8

SE

CT

ION

A-A

Wee

p H

oles

Optional 3/4

” D

rain

(Weep H

ole

s R

em

oved)

A12

-1/8

9-3/

4E

lectr

ical

3/4

x 1

KO

s

Access O

penin

gC

ondensate

3/4

x 1

KO

A

11-7

/8 14

10-7

/8

RE

AR

VIE

WLH

SID

E V

IEW

2-5/

8

33

54-1

/8

2-3/

8

19-3

/4

11-3

/416

7/874

-3/894

-1/8

2

Ret

urn

Air

(bot

h si

des)

Opt

iona

l3/

4” D

rain

Gre

enW

heel

® E

RVB-

Dam

per

Exha

ust A

ir(L

H S

ide

only

)

7

5-1/

830

-1/8

22-1

/82-

7/8

4-1/

2

15-1

/4

5/8

48-1

/8

12-1

/2

1-5/

8

FR

ON

T V

IEW

BA

SIC

MO

DE

L24

306

4048

60

VO

LTA

GE

- 2

3010

2010

2010

2010

3010

4510

60

VO

LTA

GE

- 4

6010

4510

4510

4510

5510

7010

85

SHIP

WEI

GH

T (P

OU

ND

S)

figure8.ScholarIII™,ModelsVaIaandVaISaDimensionalData


BA

SIC

MO

DE

L24

3036

40

VO

LTA

GE

- 2

3045

054

055

056

5

VO

LTA

GE

- 4

6047

556

557

559

0

SHIP

WEI

GH

T (P

OU

ND

S)

figure9a.ScholarQV™ModelsVaca24/30/36/40andVacSa36/40DimensionalData


BA

SIC

MO

DE

L49

60

VO

LTA

GE

- 2

3093

596

0

VO

LTA

GE

- 4

6096

098

5

SHIP

WEI

GH

T (P

OU

ND

S)

figure9b.ScholarQV™ModelsVaca49/60andVacSa49/60DimensionalData


BA

SIC

MO

DE

L24

30

VO

LTA

GE

- 2

3035

035

0

VO

LTA

GE

- 4

6037

537

5

SHIP

WEI

GH

T (P

OU

ND

S)36 36

0

385

NOTE: ACTUAL LOCATION OF WATER INLET AND OUTLET WILL VARY WITH SPECIFIC GEOSCHOLAR UNIT.

figure10a.GeoScholarQV™ModelsVWca24/30/36/40andVWcSa36/40DimenionalData


BA

SIC

MO

DE

L40

49

VO

LTA

GE

- 2

3054

056

5

VO

LTA

GE

- 4

6056

559

0

SHIP

WEI

GH

T (P

OU

ND

S)60 59

0

615

NOTE: ACTUAL LOCATION OF WATER INLET AND OUTLET WILL VARY WITH SPECIFIC GEOSCHOLAR UNIT.

figure10B.GeoScholarQV™ModelsVWca40/48/60and VWcSa48/60DimenionalData


1.13locatIonpreparatIon

ImpOrTaNTTHE HEaT pumpS, aIr CONdITIONErS aNd gEOSCHOlar HEaT pumpS muST bE INSTallEd IN CONfOrmaNCE WITH all applICablE lOCal anDnatIonalelectrIcal,plUMBInGanDBUIlDInGcoDeS.

A. The Scholar unit must be installed on an outside wall for access to outside air. It must not interfere with any windows or doors to the outside. The outdoor air path must not be impeded by shrubbery or other obstructions. Do not locate the Scholar or GeoScholar unit where noxious fumes or gas can be drawn in from the outdoor air and introduced in the classroom.

The Scholar and GeoScholar units aredesignedtofitflushwiththeinteriorwall, or where total wall thickness is less than 14 inches, it can stand away from the wall, if necessary. The Scholar unit can be located to stand against the wall on either the right or left side, if a corner location is preferred. Theremustbeatleast36”clearanceinfront(indoor)oftheheatpumpatalltimestoallowsufficientairflowthroughthereturngrille,andaccesstothe disconnect switch.

The Scholar and GeoScholar units must be installed on a hard, level, smooth surface such as concrete, wood or tile. If installed on a carpeted floor,thecarpetbeneaththeunitmustberemovedpriortoinstallationofthe unit.

Prior to installation of the Scholar heat pump or air conditioner, provisions are to be made for the following, as appropriate.

1. Wallopening. Dimensions for the Scholar heat pump and air conditioner are shown in Figure 11. Because the Scholar unit is designed for installationthrougha14inchthickfinishedwall,itisnecessarytofielddesign and fabricate an outdoor air box extension for installation when the finishedwallthicknessisgreater than 14 inches. For proper operation, the condenser air and ventilation air must not be impeded by the outdoor air boxextension.Forthefinishedwallthicknessless than 14 inches, the heat pumporairconditionermaystandofffromtheinteriorfinishedwallanditwillbenecessarytoorderandinstalltrimpiecestoprovideafinishedcolorcoordinatedcabinetenclosurethatfitsflushtotheinteriorwall.Whentheunit stands off from the interior wall and the trim pieces are used, acoustical insulationshouldbeinstalledontheinteriorofthetrimpiecestominimizesound transmission.

Tominimizesoundintheclassroom,allfoursidesoftheoutdoorairboxthatis internal to the room should be insulated with the following:

Layer 1: ½” of Rubatex Layer 2: 1-1/2” of Duct Board


2. Trimpiece. When the Scholar heat pump or air conditioner must be in-stalledoffsetfromtheinsideofthefinishedexteriorwall,thetrimpiecewillprovide a color coordinated panel between the cabinet and the wall. For walls of thickness less than the standard 14” where the louver assembly is desiredtofitflushwiththeoutsidewall,thecabinetmustbeoffsetfromthefinishedwall.Alltrimpiecesarefivefeetinlength.Thewidthofthetrim piece is determined by the distance between the wall and the back of the heat pump. For minimum sound levels in the classroom, the Scholar heatpumporairconditionershouldbeflushwiththeinteriorofthewall.When the Scholar unit stands off from the interior wall and the trim pieces are used, acoustical insulation should be installed on the interior of the trim piecestominimizesoundtransmission.

B. BaseStand. This base is 1/4” larger in width and length than the Scholar cabinetandraisesthecabinetoffthefloorforcustodialpurposes.Thebasestand is 2” high for the Scholar III units and 4” high for the Scholar QV and GeoScholarQVunits.ItcanbespecifiedtomatchthecoloroftheScholarcabinet. If the base stand is to be used for custodial purposes, the height of the stand is for the Scholar QV and GeoScholar QV units is 4”. For the Scholar III, typical heights of the base stand are 2” and 4”. The stand is also available in various heights when it is to be used to elevate the Scholar unittoenabletheoutdoorairboxtofitintoanexistingwindow.

MODEL VAIA & VAISAA 45-1/8”B 56”C 32”C* 34”

*When 2”high base stand is used, the C* dimen-sionisisspecified.Theuseofabasestandwitha height other than 2” will change the C height accordingly.Dimensions are in inches.

figure11a.WallopeningDimensionsforScholarIIIHeatpump&airconditioner


MODEL VACA24/30/36/40 VACA49/60A 36.75 47.25B 48.00 59.75C 32.00 32.00C* 36.00 36.00

*When 4”high base stand is used, the C* dimensionisspecified.Dimensions are in inches.

figure11b.WallopeningDimensionsforScholarQV™Heatpump& airconditioner

MODEL VWCA - All UnitsA 36.75B 8.00C 32.00C* 36.00

*When 4”high base stand is used, the C* dimension is specified.Dimensions are in inches.

figure11c.WallopeningDimensionsforGeoScholarQV™Heatpump

ImpOrTaNTStUB-oUtSSHoUlDBelocateD(froMtHefloororWall)to

bE dIrECTly OppOSITE THE SElECTEd CabINET kNOCkOuT ON THE caBInet,aSSHoWnInfIGUreS8,9anD10.tHISISareQUIreMentIfaBaSeStanDIStoBeInStalleDanDStUB-oUtSarecoMInG

tHroUGHtHefloor.

C. Electrical

1. linevoltagepowersupply mustbesizedtoprovideadequatepowerfortheoperationofthespecificmodelheatpumpandifchosen,theelectricheatoption.Informationonlinepowerrequirements,linesizingandfusesizingiscontainedinAppendixA.Thepowerleadscanenterthecabineteitherthroughthebottom(floor)orrearwall.Thelocationsof the knockouts for power leads are shown in Figures 8, 9 and 10. Depending on the location of the Scholar unit relative to the outside wall, the exact rough-in location for power lines in the school room can be determined. Six feet of power line should be available inside the cabinet for routing and connecting the power lines, after the heat pump or air conditioner is installed. If entry is from bottom, the stub-out


shouldbenohigherthan1/2”fromtheclassroomfloortoallowtheunitto slide into the wall opening.

ImpOrTaNT If “S CIrCuIT” pOSITION (HEaT pump ONly) IS SElECTEd ON THE electrIcHeatcontrol(See1.03),loWerMInIMUMcIrcUIt

aMpacItyMayBeperMItteD.

2. lowvoltagewiringcanberoughedintoeithertheback(outsidewall)orbottom(floor)ofthecabinet.Sixfeetoflowvoltagewireshouldbeavailable for routing and termination within the cabinet. If the entry is from the bottom, the stub-out should be no higher than 1/2” from the classroomfloortoallowtheScholarheatpumporairconditionerandtheGeoScholar heat pump to slide into the wall opening.

D. Condensate

The primarycondensatedrainline can be roughed in to drain the Scholar heat pump or air conditioner and the GeoScholar heat pump from eitherthebackorthebottom(floor).Thelocationsforthecondensatestub-outscanbedeterminedfromthecabinetknockoutsidentifiedinFig-ures 8, 9 and 10. The factory installed condensate connection within the cabinetisafemalePVCfittingdesignedfora3/4”slipconnection.Routethe condensate drain away from the unitwithsufficientdownwardslopeto ensure adequate drainage. The stub-out should be no higher than 1/2” from the classroomfloortoallowtheunittoslideintothewallopening.

CauTIONTO PREVENT CONDENSATE fROM RUNNING DOWN THE INTERIOR Of THE WALL,

INSTALL fLASHING UNDER THE OUTDOOR AIR bOX OVER THE SILL Of THE WALL OPENING. ROUTE THE CONDENSATE DRAIN AWAy fROM THE SCHOLAR UNIT WITH SUffICIENT DOWNWARD SLOPE TO INSURE ADEQUATE DRAINAGE.

E. Hot Water Connections

Hot Water options require rough in connections for the supply and return lines for the hot water coil.

All piping connections are made through the Scholar heat pump or air con-ditioner plenums as shown in Figures 8, 9 and 10.

1.14oUtDoorloUVerS

Marvair®offerstwostandardlouversforeachmodel-clear(satin)anodizedanddarkbronzeanodized.However,mostschoolsuseacustomlouvertomatch or compliment the windows and facade of the school. The Marvair piece, “Architectural Extruded Aluminum Louvers” has numerous photos illustratingthevarietyofstyles,colors,andconfigurationsoftheoutdoorlouvers. Please refer to this piece when selecting the outdoor louver. Your Marvair representative can assist you in the selection of the louver.


A. louver/collarassembly. The installation should be designed such that the outdoor air box is located to accept this assembly, which will recess intotheoutsidewall1-1/8”.Itwillbeflushwiththeoutsideandisthepreferred appearance from the outside, providing excellent aesthetics. The louver/collar assembly may be fastened to the outdoor air box or attached totheexteriorwallthroughfielddrilledmountingholes.SeeFigure12.Note: Consult your Marvair® representative for custom louvers.

B. louver. When the outdoor air box extends past the outside wall, the separate louver and collar should be used. See Figure 12.

C. louvercollar. When the outdoor air box extends past the outside wall and the louver is used, this louver collar is selected to provide a finishedtrimappearancetothewallopening.Thislouvercollarhascolorcoordinated screws furnished with it to anchor collar to exterior of the building.Fitsflushwithoutsidewallsurface.SeeFigure12.


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figure12.louver/collarassemblyforModelVacaandVacSaUnits

Scholar Combo EDM 2/2011 rev. 3 Appendix A -1 HVAC Equipment

appenDIXa- ScHolarIII™HeatpUMp&aIrconDItIonertypIcal INSTallaTION dETaIl

WALL MOUNTED LOUVER DETAIL


SCHOlar qV™ HEaT pump & aIr CONdITIONEr TypICal INSTallaTION dETaIl

Note:Thesedrawings(AutoCad®files)canbedownloadedfromtheMarvair® website - www.marvair.com. Go to the Scholar QV™ page and scroll to bottom to retrievefiles.

CONDENSER AIR

CONDENSER AIR IN

CONDENSER AIR OUT


gEOSCHOlar qV™ HEaT pump TypICal INSTallaTION dETaIl

WALL MOUNTED LOUVER DETAIL

Scholar Combo EDM 2/2011 rev. 3 Appendix B -1 HVAC Equipment

appenDIXB-perforMance/effIcIencyratInGS&electrIcalData- SCHOlar III HEaT pumpS aNd aIr CONdITIONErS

note:tHecoolInGanDHeatInGperforManceatVarIoUSaMBIentTEmpEraTurES CaN bE dOWNlOadEd frOm THE lITEraTurE SECTION oftHeMarVaIrWeBSIte,WWW.MarVaIr.coM

SCHOLAR III HEAT PUMPS WITH SINGLE STAGE COMPRESSOR

certifiedefficiency&capacityratings@anSI/arIStandard390-VaIaHeatpumpswithSingleStagecompressor

Model NumberVAIA24 VAIA30 VAIA36 VAIA40 VAIA48 VAIA60

HP1A HP1C HP1D HPA HPC HPD HPA HPC HPD HPA HPC HPD HPA HPC HPD HPA HPC HPD

Cooling bTUH1 24,000 28,600 35,000 40,500 48,000 59,000

EER2 11.50 12.00 10.90 10.80 11.20 10.70

High Temperature Heating3 23,000 26,800 36,000 40,000 41,000 51,000

High Temperature COP4 3.25 3.40 3.40 3.40 3.30 3.10

Rated Air flow (CfM5) 800 1,000 1,200 1,300 1,550 1,650

ESP6 @Rated Conditions 0.10 0.15 0.15 0.15 0.20 0.201Cooling and EER are rated at 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air. 2EER=Energy Efficiency Ratio3High Temperature Heating & COP are rated at 47°F DB/43°WB (8.3°C DB/6.1°C WB) outdoor and 70°F (21.1°C) return air.4COP=Coefficient of Performance5CFM=Cubic Feet per Minute 6ESP=External Static PressureRatings are with no outside air. Performance will be affected by altitude. Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different voltage from that of the rating point will affect performance and air flow.

SensibletotalHeatratio@95ºf(35ºc)outsideairDB-VaIaHeatpumpswithSingleStagecompressor


HP1A HP1C HP1D HPA HPC HPD HPA HPC HPD HPA HPC HPD HPA HPC HPD HPA HPC HPD

Total Capacity 24,000 28,600 35,000 40,500 48,000 59,000

Sensible Heat Ratio 0.75 0.77 0.72 0.74 0.72 0.70

Sensible Capacity 18,020 22,155 25,150 29,930 34,690 41,200

Rated Air flow (CfM1) 800 1,000 1,200 1,300 1,550 1,6501CFM=Cubic Feet per MinuteSensible Heat Ratios based upon ANSI/AHRI std. 390 outdoor conditions of 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air.

coolingperformance(BtUH)atVariousoutdoortemperatures-VaIaHeatpumpswithSingleStagecompressor Model Number

Outdoor Temperature

75ºF / 24ºC 80ºF / 26.5ºC 85ºF / 29ºC 90ºF / 32ºC 95ºF / 35ºC 100ºF / 38ºC 105ºF / 40.5ºC 110ºF / 43.3ºC 115ºF / 46ºC

VAIA24HP 27,840 26,880 25,920 24,960 24,000 23,040 22,080 21,120 20,640

VAIA30HP 33,175 32,030 30,890 29,745 28,600 27,455 26,310 26,170 24,595

VAIA36HP 40,600 39,200 37,800 36,400 35,000 33,600 32,200 30,800 30,100

VAIA40HP 46,980 45,360 43,740 42,120 40,500 38,880 37,260 35,640 34,830

VAIA48HP 55,680 53,760 51,840 49,920 48,000 46,080 44,160 42,240 41,280

VAIA60HP 68,440 66,080 63,720 61,360 59,000 56,640 54,280 51,920 50,740

Based upon ANSI/AHRI std. 390 return air conditions of 80°F DB/67°F WB (26.5°C DB/19.5°C WB). Return air at rated air flow.


Heatingperformance(BtUH)atVariousoutdoortemperatures-VaIaHeatpumpswithSingleStagecompressor Model Number

Outdoor Temperature

0º / -17.8ºC 10ºF / -12.2ºC 15ºF / -9.4ºC 20ºF / -6.7ºC 30ºF / -1.1ºC 40ºF / 4.4ºC 47ºF / 8.3ºC 50ºF / 10ºC 60ºF / 15.6ºC

VAIA24HPBTUH 9,660 12,420 13,800 15,180 17,940 20,700 23,000 23,460 26,220

COP 1.68 2.06 2.24 2.41 2.72 3.01 3.25 3.28 3.53

VAIA30HPBTUH 11,260 14,470 16,080 17,690 20,900 24,120 26,800 27,340 30,550

COP 1.76 2.16 2.34 2.52 2.85 3.15 3.34 3.43 3.69

VAIA36HPBTUH 15,120 19,440 21,600 23,760 28,080 32,400 36,000 36,720 41,040

COP 1.76 2.16 2.35 2.52 2.85 3.16 3.40 3.44 3.69

VAIA40HPBTUH 17,010 21,870 24,300 26,730 31,590 36,450 40,500 41,310 46,170

COP 1.76 2.16 2.35 2.52 2.85 3.16 3.40 3.43 3.69

VAIA48HPBTUH 17,220 22,140 24,600 27,060 31,980 36,900 41,000 41,820 46,740

COP 1.71 2.10 2.28 2.45 2.77 3.06 3.30 3.33 3.58

VAIA60HPBTUH 21,420 27,540 30,600 33,660 39,780 45,900 51,000 52,020 58,140

COP 1.61 1.97 2.14 2.30 2.60 2.88 3.10 3.13 3.37

Based upon ANSI/AHRI std. 390 return air of 70°F DB (21.1°C). Return air at rated airflow.

electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VaIaHeatpumpswithSingleStagecompressor

Model Number

COMPRESSOR OTHER MOTORS OUTDOOR fANINDOOR fAN

MOTOR

VENTILATION

GREENWHEEL® ERV

GREENCUbE™ ERV

VOLTS / Hz / PH RLA1 LRA2 MCC3 VOLTS / Hz / PH QTy RPM4 fLA1 HP6 fLA5 HP6AMPS AMPS

OAM7 EXM8 WD9 OAM7 EXM8

VAIA24HP1A 208/230-60-1 12.8 58.3 20.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA30HPA 208/230-60-1 12.8 64.0 20.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA36HPA 208/230-60-1 16.6 79.0 26.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA40HPA 208/230-60-1 17.9 112.0 28.0 208/230-60-1 1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA48HPA 208/230-60-1 21.8 117.0 34.0 208/230-60-1 2 1500 2.8 1/2 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA60HPA 208/230-60-1 26.2 134.0 41.0 208/230-60-1 2 1500 2.8 1/2 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA24HP1C 208/230-60-3 7.7 55.4 12.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA30HPC 208/230-60-3 8.3 61.0 13.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA36HPC 208/230-60-3 10.4 88.0 16.3 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA40HPC 208/230-60-3 13.5 88.0 21.1 208/230-60-1 1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA48HPC 208/230-60-3 13.7 83.1 21.4 208/230-60-1 2 1500 2.8 1/2 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA60HPC 208/230-60-3 15.6 111.0 24.4 208/230-60-1 2 1500 2.8 1/2 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA24HP1D 460-60-3 3.6 28.0 5.6 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA30HPD 460-60-3 5.1 28.0 8.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA36HPD 460-60-3 5.8 38.0 9.0 208/230-60-1 1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA40HPD 460-60-3 6.0 44.0 9.3 208/230-60-1 1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA48HPD 460-60-3 6.2 41.0 9.7 208/230-60-1 2 1500 2.8 1/2 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA60HPD 460-60-3 7.7 52.0 12.1 208/230-60-1 2 1500 2.8 1/2 4.3 3/4 1.0 0.4 0.2 3.2 0.41RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower 7OAM - Outside Air Motor 8EXM-Exhaust Air Motor9WD-Wheel Drive MotorThe 460 volt units have a step down transformer for the 230 volt motors.


Summaryelectricalratings(WireSizing)-VaIaHeatpumpswithSingleStagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentconfiguration

ELECTRIC HEAT 00 = None 05 = 5 kw 7.5 = 7.5 kw 10 = 10 kw 15 = 15 kw

Model Number

VOLTAGEPh-Hz

CkT #1 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2

MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2

VAIA24HP1A 208-230/1/60 21.2 30 47.2 50 n/a n/a 40.8 45 19.6 20 47.2 50 26.0 30 n/a n/a n/a n/a

VAIA30HPA 208-230/1/60 21.2 30 47.2 50 n/a n/a 40.8 45 19.6 20 47.2 50 26.0 30 n/a n/a n/a n/a



VAIA48HPA 208-230/1/60 38.2 50 38.2 50 26.0 30 38.2 50 39.1 40 38.2 50 52.1 60 n/a n/a n/a n/a


VAIA24HP1C 208-230/3/60 14.8 20 29.8 30 n/a n/a 37.3 40 n/a n/a 45.0 50 n/a n/a 37.3 40 22.5 25

VAIA30HPC 208-230/3/60 15.6 20 30.6 35 n/a n/a 38.1 40 n/a n/a 45.7 50 n/a n/a 38.1 40 22.5 25




VAIA60HPC 208-230/3/60 30.4 45 45.4 50 n/a n/a 52.9 60 n/a n/a 30.4 45 30.1 35 30.4 45 45.1 50

VAIA24HP1D 460/3/60 7.6 15 14.6 15 n/a n/a 18.4 20 n/a n/a 22.1 25 n/a n/a 29.6 30 n/a n/a

VAIA30HPD 460/3/60 9.0 15 16.5 20 n/a n/a 20.2 25 n/a n/a 24.0 25 n/a n/a 31.5 35 n/a n/a





This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements of specific units, always refer to the data label on the unit for sizing

conductors.1MCA = Maximum Continuous Current (Wiring Size Amps) 2MFS = Maximum Fuse Size MCA & MFS are calculated at 230 volts for HPA & HPC models.

MCA & MFS are calculated at 460 volts for all HPD models. All 460 units will have a step down transformer for the 230 volts motors.

Summaryelectricalratings(WireSizing)-VaIaHeatpumpswithSingleStagecompressorpowerVent-Ventilationconfiguration(“J”)


Model Number

VOLTAGEPh-Hz






















conductors.1MCA = Maximum Continuous Current (Wiring Size Amps)2MFS = Maximum Fuse Size MCA & MFS are calculated at 230 volts for HPA & HPC models.



Summaryelectricalratings(WireSizing)-VaIaHeatpumpswithSingleStagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)


Model Number

VOLTAGEPh-Hz
























Summaryelectricalratings(WireSizing)-VaIaHeatpumpswithSingleStagecompressorGreencube™erV-Ventilationconfiguration(“Q”)


Model Number

VOLTAGEPh-Hz

























Unitloadamps(Heating)-VaIaHeatpumpswithSingleStagecompressor

Model Number

VOLTAGEPh-Hz

Heat Pump Amps(maximum)

Load of Resistive Heating Elements

Only (Amps)Total Maximum Heating Amps

VentilationConfiguration

Heating Element (kW) Vent. Configuration b1, N2 Vent. Configuration J3 Vent. Configuration H4 Vent. Configuration Q5

b1 & N2 J3 H4 Q5 5kW 7.5kW 10kW 15kW 5kW 7.5kW 10kW 15kW 5kW 7.5kW 10kW 15kW 5kW 7.5kW 10kW 15kW 5kW 7.5kW 10kW 15kW

VAIA24HP1A 208-230/1/60 18.0 18.4 18.6 20.6 20.8 31.3 41.7 n/a 38.8 49.3 59.7 n/a 39.2 49.7 60.1 n/a 39.4 49.9 60.3 n/a 41.4 51.9 62.3 n/a

VAIA30HPA 208-230/1/60 18.0 18.4 18.6 20.6 20.8 31.3 41.7 n/a 38.8 49.3 59.7 n/a 39.2 49.7 60.1 n/a 39.4 49.9 60.3 n/a 41.4 51.9 62.3 n/a





VAIA24HP1C 208-230/3/60 12.9 13.3 13.5 15.5 12.0 18.0 24.1 36.1 24.9 30.9 37.0 49.0 25.3 31.3 37.4 49.4 25.5 31.5 37.6 49.6 27.5 33.5 39.6 51.6

VAIA30HPC 208-230/3/60 13.4 13.8 14.0 16.0 12.0 18.0 24.1 36.1 25.4 31.4 37.5 49.5 25.8 31.8 37.9 49.9 26.0 32.0 38.1 50.1 28.0 34.0 40.1 52.1

VAIA36HPC 208-230/3/60 15.5 15.9 16.1 18.1 12.0 18.0 24.1 36.1 27.5 33.5 39.6 51.6 27.9 33.9 40.0 52.0 28.1 34.1 40.2 52.2 30.1 36.1 42.2 54.2

VAIA40HPC 208-230/3/60 20.2 20.6 20.8 22.8 12.0 18.0 24.1 36.1 32.2 38.2 44.3 56.3 32.6 38.6 44.7 56.7 32.8 38.8 44.9 56.9 34.8 40.8 46.9 58.9

VAIA48HPC 208-230/3/60 24.6 25.0 25.2 27.2 12.0 18.0 24.1 36.1 36.6 42.6 48.7 60.7 37.0 43.0 49.1 61.1 37.2 43.2 49.3 61.3 39.2 45.2 51.3 63.3

VAIA60HPC 208-230/3/60 26.5 26.9 27.1 29.1 12.0 18.0 24.1 36.1 38.5 44.5 50.6 62.6 38.9 44.9 51.0 63.0 39.1 45.1 51.2 63.2 41.1 47.1 53.2 65.2

VAIA24HP1D 460/3/60 6.2 6.4 6.5 7.5 6.0 9.0 12.0 18.0 12.2 15.2 18.2 24.2 12.4 15.4 18.4 24.4 12.5 15.5 18.5 24.5 13.5 16.5 19.5 25.5

VAIA30HPD 460/3/60 7.7 7.9 8.0 9.0 6.0 9.0 12.0 18.0 13.7 16.7 19.7 25.7 13.9 16.9 19.9 25.9 14.0 17.0 20.0 26.0 15.0 18.0 21.0 27.0

VAIA36HPD 460/3/60 8.4 8.6 8.7 9.7 6.0 9.0 12.0 18.0 14.4 17.4 20.4 26.4 14.6 17.6 20.6 26.6 14.7 17.7 20.7 26.7 15.7 18.7 21.7 27.7

VAIA40HPD 460/3/60 9.4 9.6 9.7 10.7 6.0 9.0 12.0 18.0 15.4 18.4 21.4 27.4 15.6 18.6 21.6 27.6 15.7 18.7 21.7 27.7 16.7 19.7 22.7 28.7

VAIA48HPD 460/3/60 11.7 11.9 12.0 13.0 6.0 9.0 12.0 18.0 17.7 20.7 23.7 29.7 17.9 20.9 23.9 29.9 18.0 21.0 24.0 30.0 19.0 22.0 25.0 31.0

VAIA60HPD 460/3/60 13.2 13.4 13.5 14.5 6.0 9.0 12.0 18.0 19.2 22.2 25.2 31.2 19.4 22.4 25.4 31.4 19.5 22.5 25.5 31.5 20.5 23.5 26.5 32.5

Heating kW is rated at 240 volts on the HPA & HPC models. Derate heater output by 25% for operation at 208 volts. Total heating amps for single phase units with two circuits (#1 and #2) includes both circuits. Heating kW is rated at 480 volts on the HPD models. Three phase models contain single phase motor loads.Total heating and cooling amps includes all motors. Values shown are maximum phase loads. Loads are not equally balanced on each phase.1B = Motorized Damper 2N = Manual Fresh Air Damper 3J = PowerVent 4H = GreenWheel® ERV 5Q = GreenCube™ ERV

electricalcharacteristics-VentilationMotorsVentilation

ConfigurationVentilationDesignator

Exhaust Air Motor (EXM) Outdoor Air Motor (OAM) Wheel Drive Motor

Volts Hz/Ph fLA1 HP Volts Hz/Ph fLA HP Volts Hz/Ph fLA HP

Motorized Damper B n/a n/a n/a n/a 230 60/1 1.0 0.17 n/a n/a n/a n/a

Manual Damper (Standard) N n/a n/a n/a n/a 230 60/1 1.0 0.17 n/a n/a n/a n/a

PowerVent with Motorized Damper J 230 60/1 0.4 0.12 230 60/1 1.0 0.17 n/a n/a n/a n/a

GreenWheel® ERV H 230 60/1 0.4 0.12 230 60/1 1.0 0.17 230 60/1 0.2 0.01

GreenCube™ ERV Q 230 60/1 0.4 0.12 230 60/1 3.2 1/2 n/a n/a n/a n/a1FLA = Full Load Amps Hz/Ph = Hertz (Frequency)/Number of Phases

SCHOLAR III AIR CONDITIONERS WITH SINGLE STAGE COMPRESSOR

certifiedefficiencyandcapacityratingsatanSI/aHrIStandard390-VaIaairconditionerswithSingleStagecompressor


AC1A AC1C AC1D ACA ACC ACD ACA ACC ACD ACA ACC ACD ACA ACC ACD ACA ACC ACD

Cooling bTUH1 24,000 28,600 35,000 40,500 47,500 60,000

EER2 11.50 12.00 10.90 10.80 11.50 11.00

Rated Air flow (CfM3) 800 1,000 1,200 1,300 1,550 1,650

ESP4 @ Rated Conditions 0.10 0.15 0.15 0.15 0.20 0.20

1Cooling and EER are rated at 95°F (35°C) outdoor and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air. 2EER=Energy Efficiency Ratio3CFM=Cubic Feet per Minute 4ESP=External Static PressureRatings are with no outside air. Performance will be affected by altitude. Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different voltage from that of the rating point will affect performance and air flow.


SensibletotalHeatratio@95ºf(35ºc)outsideairDB-VaIaairconditionerswithSingleStagecompressorModel Number

VAIA24 VAIA30 VAIA36 VAIA40 VAIA48 VAIA60

AC1A AC1C AC1D ACA ACC ACD ACA ACC ACD ACA ACC ACD ACA ACC ACD ACA ACC ACD

Total Capacity 24,000 28,600 35,000 40,500 47,500 60,000



Rated Air flow (CfM1) 800 1,000 1,200 1,300 1,550 1,6501CFM=Cubic Feet per MinuteSensible heat ratios based upon ANSI/AHRI std. 390 outdoor air conditions of 95°F (35°C) and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air.

coolingperformance(BtUH)atVariousoutdoortemperatures-VaIaairconditionerswithSingleStagecompressor

Model NumberOutdoor Temperature


VAIA24AC1 27,840 26,880 25,920 24,960 24,000 23,040 22,080 21,120 20,640

VAIA30AC 33,175 32,030 30,890 29,745 28,600 27,455 26,310 26,170 24,595

VAIA36AC 40,600 39,200 37,800 36,400 35,000 33,600 32,200 30,800 30,100

VAIA40AC 46,980 45,360 43,740 42,120 40,500 38,880 37,260 35,640 34,830

VAIA48AC 55,100 53,200 51,300 49,400 47,500 45,600 43,700 41,800 40,850

VAIA60AC 69,600 67,200 64,800 62,400 60,000 57,600 55,200 52,800 51,600

Based upon ANSI/AHRI std. 390 return air conditions of 80°F DB/67° WB (26.5°C DB/19.5°C WB) at various outdoor temperatures. Return air at rated air flow.

electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VaIaairconditionerswithSingleStagecompressor

Model Number

COMPRESSOR OTHER MOTORS OUTDOOR fANINDOOR bLOWER

(ECM)

VENTILATION

GreenWheel® ERV GreenCube™ ERV

AMPS AMPS

VOLTS-Hz-PH RLA1 LRA2 MCC3 VOLTS-Hz-PH RPM4 fLA5 HP6 fLA5 HP6 OAM7 EXM8 WD9 OAM7 EXM8

VAIA24AC1A 208/230-60-1 12.8 58.3 20.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA30ACA 208/230-60-1 12.8 64.0 20.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA36ACA 208/230-60-1 16.6 79.0 26.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA40ACA 208/230-60-1 17.9 112.0 28.0 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA48ACA 208/230-60-1 21.8 117.0 34.0 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA60ACA 208/230-60-1 26.2 134.0 41.0 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA24AC1C 208/230-60-3 7.7 55.4 12.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA30ACC 208/230-60-3 8.3 61.0 13.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA36ACC 208/230-60-3 10.4 88.0 16.3 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA40ACC 208/230-60-3 13.5 88.0 21.1 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA48ACC 208/230-60-3 13.7 83.1 21.4 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA60ACC 208/230-60-3 15.6 111.0 24.4 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA24AC1D 460-60-3 3.6 28.0 5.6 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA30ACD 460-60-3 5.1 28.0 8.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA36ACD 460-60-3 5.8 38.0 9.0 208/230-60-1 1030 1.4 1/3 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAIA40ACD 460-60-3 6.0 44.0 9.3 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA48ACD 460-60-3 6.2 41.0 9.7 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAIA60ACD 460-60-3 7.7 52.0 12.1 208/230-60-1 1030 1.4 1/3 4.3 3/4 1.0 0.4 0.2 3.2 0.41RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower 7OAM - Outside Air Motor 8EXM-Exhaust Air Motor9WD-Wheel Drive MotorThe 460 volt units have a step down transformer for the 230 volt motors.


Summaryelectricalratings(WireSizing)-VaIaairconditionerswithSingleStagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentconfiguration

ELECTRIC HEAT 000 = None 050 = 5 kw 075 = 7.5 kw 100 = 10 kw 150 = 15 kw

Model Number VOLTAGE/PHASECkT #1 CkT #1 CkT #1 CkT #1 CkT #1

MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2 MCA1 MfS2

VAIA24AC1A 208-230/1 21.2 30 29.8 30 42.9 45 55.9 60 n/a n/a

VAIA30ACA 208-230/1 21.2 30 29.8 30 42.9 45 55.9 60 n/a n/a

VAIA36ACA 208-230/1 26.0 40 29.8 40 42.9 45 55.9 60 n/a n/a

VAIA40ACA 208-230/1 29.1 45 31.3 45 44.4 45 57.4 60 n/a n/a

VAIA48ACA 208-230/1 34.0 50 34.0 50 44.4 50 57.4 60 n/a n/a

VAIA60ACA 208-230/1 39.5 60 39.5 60 44.4 60 57.4 60 n/a n/a

VAIA24AC1C 208-230/3 14.8 20 18.8 20 26.3 30 33.9 35 48.9 50

VAIA30ACC 208-230/3 15.6 20 18.8 20 26.3 30 33.9 35 48.9 50

VAIA36ACC 208-230/3 18.2 25 18.8 25 26.3 30 33.9 35 48.9 50

VAIA40ACC 208-230/3 23.6 35 23.6 35 27.8 35 35.4 40 50.4 60

VAIA48ACC 208-230/3 23.8 35 23.8 35 27.8 35 35.4 40 50.4 60

VAIA60ACC 208-230/3 26.2 40 26.2 40 27.8 40 35.4 40 50.4 60

VAIA24AC1D 460/3 7.1 15 9.4 15 13.2 15 16.9 20 24.4 25

VAIA30ACD 460/3 9.0 15 9.4 15 13.2 15 16.9 20 24.4 25

VAIA36ACD 460/3 9.9 15 9.9 15 13.2 15 16.9 20 24.4 25

VAIA40ACD 460/3 10.9 15 10.9 15 13.9 15 17.7 20 25.2 30

VAIA48ACD 460/3 11.1 15 11.1 15 13.9 15 17.7 20 25.2 30

VAIA60ACD 460/3 13.0 20 13.0 20 13.9 20 17.7 20 25.2 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements of specific units, always refer to the data label on the unit for

sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps) 2MFS = Maximum Fuse Size or HACR Breaker

MCA & MFS are calculated at 240 volts for “A” & “C” models.

MCA & MFS are calculated at 460 volts for all “D” models. All 460 units will have a step down transformer for the 230 volts motors.

Summaryelectricalratings(WireSizing)-VaIaairconditionerswithSingleStagecompressorpowerVent-Ventilationconfiguration(“J”)




VAIA24AC1A 208-230/1/60 21.6 30 30.2 35 43.3 45 56.3 60 n/a n/a

VAIA30ACA 208-230/1/60 21.6 30 30.2 35 43.3 45 56.3 60 n/a n/a

VAIA36ACA 208-230/1/60 26.4 40 30.2 40 43.3 45 56.3 60 n/a n/a

VAIA40ACA 208-230/1/60 29.5 45 31.7 45 44.8 45 57.8 60 n/a n/a

VAIA48ACA 208-230/1/60 34.4 50 34.4 50 44.8 50 57.8 60 n/a n/a

VAIA60ACA 208-230/1/60 39.9 60 39.9 60 44.8 60 57.8 60 n/a n/a

VAIA24AC1C 208-230/3/60 15.2 20 19.2 20 26.7 30 34.3 35 49.3 50

VAIA30ACC 208-230/3/60 16.0 20 19.2 20 26.7 30 34.3 35 49.3 50

VAIA36ACC 208-230/3/60 18.6 25 19.2 25 26.7 30 34.3 35 49.3 50

VAIA40ACC 208-230/3/60 24.0 35 24.0 35 28.2 35 35.8 40 50.8 60

VAIA48ACC 208-230/3/60 24.2 35 24.2 35 28.2 35 35.8 40 50.8 60

VAIA60ACC 208-230/3/60 26.6 40 26.6 40 28.2 40 35.8 40 50.8 60

VAIA24AC1D 460/3/60 7.3 15 9.6 15 13.4 15 17.1 20 24.6 25

VAIA30ACD 460/3/60 9.2 15 9.6 15 13.4 15 17.1 20 24.6 25

VAIA36ACD 460/3/60 10.1 15 10.1 15 13.4 15 17.1 20 24.6 25

VAIA40ACD 460/3/60 11.1 15 11.1 15 14.1 15 17.9 20 25.4 30

VAIA48ACD 460/3/60 11.3 15 11.3 15 14.1 15 17.9 20 25.4 30

VAIA60ACD 460/3/60 13.2 20 13.2 20 14.1 20 17.9 20 25.4 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements of specific units, always refer to the data label on the unit

for sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps) 2MFS = Maximum Fuse Size or HACR Breaker




Summaryelectricalratings(WireSizing)-VaIaairconditionerswithSingleStagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)




VACA24ACA 208-230/1 21.6 30 29.7 30 42.7 45 55.8 60 n/a n/a

VACA30ACA 208-230/1 23.2 35 29.7 35 42.7 45 55.8 60 n/a n/a

VACA36ACA 208-230/1 28.0 45 29.7 45 42.7 45 55.8 60 n/a n/a

VACA40ACA 208-230/1 30.4 50 30.4 50 42.7 50 55.8 60 n/a n/a

VACA49ACA 208-230/1 36.7 50 36.7 50 45.7 50 58.7 60 n/a n/a

VACA60ACA 208-230/1 42.2 60 42.2 60 45.7 60 58.7 60 n/a n/a

VACA24ACC 208-230/3 16.0 20 18.7 20 26.2 30 33.8 35 48.8 50

VACA30ACC 208-230/3 16.9 25 18.7 20 26.2 30 33.8 35 48.8 50

VACA36ACC 208-230/3 22.1 35 18.7 35 26.2 35 33.8 35 48.8 50

VACA40ACC 208-230/3 22.6 35 22.5 35 26.2 35 33.8 35 48.8 50

VACA49ACC 208-230/3 26.5 35 26.5 35 29.9 40 36.6 40 51.6 60

VACA60ACC 208-230/3 28.9 40 28.9 40 33.1 45 36.6 45 51.6 60

VACA24ACD 460/3 9.5 15 9.7 15 13.5 15 17.2 20 24.7 25

VACA30ACD 460/3 10.2 15 10.2 15 13.5 15 17.2 20 24.7 25

VACA36ACD 460/3 10.7 15 10.7 15 13.5 15 17.2 20 24.7 25

VACA40ACD 460/3 10.8 15 10.8 15 13.5 15 17.2 20 24.7 25

VACA49ACD 460/3 12.5 20 12.5 20 14.5 20 18.3 20 25.7 30

VACA60ACD 460/3 14.3 20 14.3 20 14.5 20 18.3 20 25.7 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements of specific units, always refer to the data label

on the unit for sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps) 2MFS = Maximum Fuse Size or HACR Breaker


MCA & MFS are calculated at 460 volts for all “D” models. All 460 units will have a step down transformer for the 230 volts motors. .

Summaryelectricalratings(WireSizing)-VaIaairconditionerswithSingleStagecompressorGreencube™erV-Ventilationconfiguration(“Q”)




VAIA24AC1A 208-230/1/60 23.8 35 32.4 35 45.5 50 58.5 60 n/a n/a

VAIA30ACA 208-230/1/60 23.8 35 32.4 35 45.5 50 58.5 60 n/a n/a

VAIA36ACA 208-230/1/60 28.6 45 32.4 45 45.5 50 58.5 60 n/a n/a

VAIA40ACA 208-230/1/60 31.7 45 33.9 45 47.0 50 60.0 60 n/a n/a

VAIA48ACA 208-230/1/60 36.6 50 37.6 50 47.0 50 60.0 60 n/a n/a

VAIA60ACA 208-230/1/60 42.1 60 43.1 60 47.0 60 60.0 60 n/a n/a

VAIA24AC1C 208-230/3/60 17.4 25 21.4 25 28.9 30 36.5 40 51.5 60

VAIA30ACC 208-230/3/60 18.2 25 21.4 25 28.9 30 36.5 40 51.5 60

VAIA36ACC 208-230/3/60 20.8 30 21.4 25 28.9 30 36.5 40 51.5 60

VAIA40ACC 208-230/3/60 26.2 35 27.2 35 30.4 35 38.0 40 53.0 60

VAIA48ACC 208-230/3/60 26.4 40 27.4 40 30.4 40 38.0 40 53.0 60

VAIA60ACC 208-230/3/60 28.8 40 29.8 40 30.4 40 38.0 40 53.0 60

VAIA24AC1D 460/3/60 8.4 15 11.4 15 14.5 15 18.2 20 25.7 30

VAIA30ACD 460/3/60 10.3 15 11.4 15 14.5 15 18.2 20 25.7 30

VAIA36ACD 460/3/60 11.2 15 11.4 15 14.5 15 18.2 20 25.7 30

VAIA40ACD 460/3/60 12.2 15 12.2 15 15.2 20 19.0 20 26.5 30

VAIA48ACD 460/3/60 12.4 15 12.9 15 15.2 20 19.0 20 26.5 30

VAIA60ACD 460/3/60 14.3 20 14.8 20 15.2 20 19.0 20 26.5 30






Unitloadamps(Heating)-VaIaairconditionerswithSingleStagecompressor

Model Number

VOLTAGEPh-Hz

Ventilation Air Movers, Max.

Amps

Load of ResistiveHeating Elements




b1 & N2 J3 H4 Q5 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW

VAIA24AC1A 208-230/1/60 3.8 4.2 6.4 4.4 20.8 31.3 41.7 n/a 24.6 35.1 45.5 n/a 25.0 35.5 45.9 n/a 25.2 35.7 46.1 n/a 27.2 37.7 48.1 n/a

VAIA30ACA 208-230/1/60 3.8 4.2 6.4 4.4 20.8 31.3 41.7 n/a 24.6 35.1 45.5 n/a 25.0 35.5 45.9 n/a 25.2 35.7 46.1 n/a 27.2 37.7 48.1 n/a





VAIA24AC1C 208-230/3/60 3.8 4.2 6.4 4.4 12.0 18.0 24.1 36.1 15.8 21.8 27.9 39.9 16.2 22.2 28.3 40.3 16.4 22.4 28.5 40.5 18.4 24.4 30.5 42.5

VAIA30ACC 208-230/3/60 3.8 4.2 6.4 4.4 12.0 18.0 24.1 36.1 15.8 21.8 27.9 39.9 16.2 22.2 28.3 40.3 16.4 22.4 28.5 40.5 18.4 24.4 30.5 42.5

VAIA36ACC 208-230/3/60 3.8 4.2 6.4 4.4 12.0 18.0 24.1 36.1 15.8 21.8 27.9 39.9 16.2 22.2 28.3 40.3 16.4 22.4 28.5 40.5 18.4 24.4 30.5 42.5

VAIA40ACC 208-230/3/60 5.3 5.7 7.9 5.9 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 17.7 23.7 29.8 41.8 17.9 23.9 30.0 42.0 19.9 25.9 32.0 44.0

VAIA48ACC 208-230/3/60 5.3 5.7 7.9 5.9 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 17.7 23.7 29.8 41.8 17.9 23.9 30.0 42.0 19.9 25.9 32.0 44.0

VAIA60ACC 208-230/3/60 5.3 5.7 7.9 5.9 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 17.7 23.7 29.8 41.8 17.9 23.9 30.0 42.0 19.9 25.9 32.0 44.0

VAIA24AC1D 460/3/60 1.9 2.1 3.2 2.2 6.0 9.0 12.0 18.0 7.9 10.9 13.9 19.9 8.1 11.1 14.1 20.1 8.2 11.2 14.2 20.2 9.2 12.2 15.2 21.2

VAIA30ACD 460/3/60 1.9 2.1 3.2 2.2 6.0 9.0 12.0 18.0 7.9 10.9 13.9 19.9 8.1 11.1 14.1 20.1 8.2 11.2 14.2 20.2 9.2 12.2 15.2 21.2

VAIA36ACD 460/3/60 1.9 2.1 3.2 2.2 6.0 9.0 12.0 18.0 7.9 10.9 13.9 19.9 8.1 11.1 14.1 20.1 8.2 11.2 14.2 20.2 9.2 12.2 15.2 21.2

VAIA40ACD 460/3/60 2.7 2.9 4.0 3.0 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 8.9 11.9 14.9 20.9 9.0 12.0 15.0 21.0 10.0 13.0 16.0 22.0

VAIA48ACD 460/3/60 2.7 2.9 4.0 3.0 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 8.9 11.9 14.9 20.9 9.0 12.0 15.0 21.0 10.0 13.0 16.0 22.0

VAIA60ACD 460/3/60 2.7 2.9 4.0 3.0 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 8.9 11.9 14.9 20.9 9.0 12.0 15.0 21.0 10.0 13.0 16.0 22.0









GreenWheel® ERV H 230 60/1 0.4 0.12 230 60/1 1.0 0.17 230 60/1 0.2 0.01



Dehumidification-ModelVaIaDehumidification - Scholar III Model VAIA24 (HG)

Indoor ConditionsAir Entering Indoor Coil

OutdoorAmbient

Capacity (btu/Hr)Indoor

Air flowIndoor

Supply AirMoisture Removed

(Approximate) OperatingMode

Db / Wb % RH Db Total Sensible Latent CfM Db Lbs / Hr Pints / Hr

75 / 62.5 50 75 25,650 19,200 6,450 800 51.2 6.1 5.8 Cooling

75 / 62.5 50 75 6,450 0 6,450 800 73.4 6.1 5.8 Dehumid.

75 / 65.5 60 75 27,102 16,818 10,284 800 54.3 9.7 9.3 Cooling

75 / 65.5 60 75 10,284 0 10,284 800 73.8 9.7 9.3 Dehumid.

75 / 68 70 75 28,332 14,797 13,535 800 57.0 12.8 12.3 Cooling

75 / 68 70 75 13,535 0 13,535 800 74.1 12.8 12.3 Dehumid.

65 / 63 90 75 25,896 11,121 14,775 800 51.9 13.9 13.4 Cooling

65 / 63 90 75 14,775 0 14,775 800 64.8 13.9 13.4 Dehumid.

80 / 67 50 95 24,000 18,022 5,978 800 57.6 5.6 5.4 Cooling

80 / 67 50 95 5,978 0 5,978 800 78.5 5.6 5.4 Dehumid.

Dehumidification - Scholar III Model VAIA30 (HG)Indoor Conditions

Air Entering Indoor CoilOutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 30,994 23,698 7,296 1000 51.7 6.9 6.6 Cooling

75 / 62.5 50 75 7,296 0 7,296 1000 73.6 6.9 6.6 Dehumid.

75 / 65.5 60 75 32,748 20,687 12,061 1000 54.8 11.4 10.9 Cooling

75 / 65.5 60 75 12,061 0 12,061 1000 74.0 11.4 10.9 Dehumid.

75 / 68 70 75 34,235 18,134 16,101 1000 57.4 15.2 14.6 Cooling

75 / 68 70 75 16,101 0 16,101 1000 74.2 15.2 14.6 Dehumid.

65 / 63 90 75 31,291 13,485 17,806 1000 52.3 16.8 16.1 Cooling

65 / 63 90 75 17,806 0 17,806 1000 64.8 16.8 16.1 Dehumid.

80 / 67 50 95 29,000 22,300 6,700 1000 57.9 6.3 6.1 Cooling

80 / 67 50 95 6,700 0 6,700 1000 78.5 6.3 6.1 Dehumid.




Air flowIndoor




75 / 62.5 50 75 37,406 26,904 10,502 1200 51.6 9.9 9.5 Cooling

75 / 62.5 50 75 10,502 0 10,502 1200 72.4 9.9 9.5 Dehumid.

75 / 65.5 60 75 39,524 23,680 15,844 1200 54.7 15.0 14.3 Cooling

75 / 65.5 60 75 15,844 0 15,844 1200 73.0 15.0 14.3 Dehumid.

75 / 68 70 75 41,318 20,411 20,907 1200 57.3 19.7 18.9 Cooling

75 / 68 70 75 20,907 0 20,907 1200 73.0 19.7 18.9 Dehumid.

65 / 63 90 75 37,765 16,028 21,737 1200 52.2 20.5 19.7 Cooling

65 / 63 90 75 21,737 0 21,737 1200 64.6 20.5 19.7 Dehumid.

80 / 67 50 95 35,000 25,148 9,852 1200 57.9 9.3 8.9 Cooling

80 / 67 50 95 9,852 0 9,852 1200 77.3 9.3 8.9 Dehumid.


Dehumidification-ModelVaIaDehumidification - Scholar III Model VAIA40 (HG)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 43,285 31,949 11,336 1300 50.8 10.7 10.3 Cooling

75 / 62.5 50 75 11,336 0 11,336 1300 73.5 10.7 10.3 Dehumid.

75 / 65.5 60 75 45,735 28,059 17,676 1300 53.9 16.7 16.0 Cooling

75 / 65.5 60 75 17,676 0 17,676 1300 73.9 16.7 16.0 Dehumid.

75 / 68 70 75 47,810 24,757 23,053 1300 56.6 21.8 20.9 Cooling

75 / 68 70 75 23,053 0 23,053 1300 74.2 21.8 20.9 Dehumid.

65 / 63 90 75 43,700 18,744 24,956 1300 51.4 23.6 22.6 Cooling

65 / 63 90 75 20,556 0 24,956 1300 67.9 23.6 22.6 Dehumid.

80 / 67 50 95 40,500 29,932 10,068 1300 57.2 9.5 9.1 Cooling

80 / 67 50 95 10,068 0 10,068 1300 78.5 9.5 9.1 Dehumid.




Air flowIndoor




75 / 62.5 50 75 51,300 37,107 14,193 1550 50.9 13.4 12.9 Cooling

75 / 62.5 50 75 14,193 0 14,193 1550 73.1 13.4 12.9 Dehumid.

75 / 65.5 60 75 54,204 32,675 21,529 1550 54.0 20.3 19.5 Cooling

75 / 65.5 60 75 21,529 0 21,529 1550 73.5 20.3 19.5 Dehumid.

75 / 68 70 75 56,664 28,910 27,754 1550 56.6 26.2 25.1 Cooling

75 / 68 70 75 27,754 0 27,754 1550 73.9 26.2 25.1 Dehumid.

65 / 63 90 75 51,792 22,084 29,708 1550 51.5 28.1 26.9 Cooling

65 / 63 90 75 29,708 0 29,708 1550 64.7 28.1 26.9 Dehumid.

80 / 67 50 95 48,000 34,689 13,311 1550 57.2 12.6 12.1 Cooling

80 / 67 50 95 13,311 0 13,311 1550 77.9 12.6 12.1 Dehumid.




Air flowIndoor




75 / 62.5 50 75 63,056 44,296 18,760 1650 50.0 17.7 17.0 Cooling

75 / 62.5 50 75 18,760 0 18,760 1650 74.8 17.7 17.0 Dehumid.

75 / 65.5 60 75 66,626 39,294 27,332 1650 52.9 25.8 24.7 Cooling

75 / 65.5 60 75 27,332 0 27,332 1650 75.0 25.8 24.7 Dehumid.

75 / 68 70 75 69,650 35,035 34,915 1650 55.4 33.0 31.6 Cooling

75 / 68 70 75 34,915 0 34,915 1650 75.1 33.0 31.6 Dehumid.

65 / 63 90 75 63,661 27,262 36,399 1650 50.8 34.4 33.0 Cooling

65 / 63 90 75 36,399 0 36,399 1650 66.1 34.4 33.0 Dehumid.

80 / 67 50 95 59,000 41,199 17,801 1650 55.8 16.8 16.1 Cooling

80 / 67 50 95 17,801 0 17,801 1650 78.9 16.8 16.1 Dehumid.


SCHOLAR III HEAT PUMPS WITH 2-STAGE COMPRESSOR

certifiedefficiencyandcapacityratingsatanSI/aHrIStandard390-VaISaHeatpumpswith2-Stagecompressor

Model NumberVAISA36 VAISA40 VAISA48 VAISA60

HPA HPC HPD HPA HPC HPD HPA HPC HPD HPA HPC HPD

Cooling bTUH1 - 2nd Stage 35,000 41,000 46,000 54,000

EER2 - 2nd Stage 11.55 11.40 11.00 10.10

Integrated Part Load Value3 14.9 14.3 14.1 14.4

High Temperature Heating4 34,000 38,000 39,000 51,000

High Temperature COP5 3.50 3.30 3.40 3.15

Rated Air flow (CfM6) 1,200 1,300 1,550 1,650

ESP7 @ Rated Conditions 0.15 0.15 0.20 0.201Cooling and EER are rated at 95°F (35°C) outdoor and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air. 2EER=Energy Efficiency Ratio3Integrated Part Load Value is an integrated efficiency measure from 1st and 2nd stage capacity modulation.4High Temperature Heating & COP are rated at 47°F DB/43°WB (8.3°C DB/6.1°C WB) outdoor and 70°F (21.1°C) return air.5COP=Coefficient of Performance 6CFM=Cubic Feet per Minute 7ESP=External Static PressureRatings are with no outside air. Performance will be affected by altitude. Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different voltage from that of the rating point will affect performance and air flow.

SensibletotalHeatratioat95ºf(35ºc)outsideairDB-VaISaHeatpumpswith2-StagecompressorModel Number

VAISA36 VAISA40 VAISA48 VAISA60

HPA HPC HPD HPA HPC HPD HPA HPC HPD HPA HPC HPD

Total Capacity 24,000 28,600 35,000 40,500

Sensible Heat Ratio 0.75 0.77 0.72 0.74

Sensible Capacity 18,020 22,155 25,150 29,930

Rated Air flow (CfM1) 800 1,000 1,200 1,300

1CFM=Cubic Feet per Minute Sensible Heat Ratios based upon ANSI/AHRI std. 390 outdoor conditions of 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air.

coolingperformance(BtUH)atVariousoutdoortemperatures-VaISaHeatpumpswith2-StagecompressorModel Number

Outdoor Temperature


VAISA36HP 40,600 39,200 37,800 36,400 35,000 33,600 32,200 30,800 30,100

VAISA40HP 47,560 45,920 44,280 42,640 41,000 39,360 37,720 36,080 35,260

VAISA48HP 53,360 51,520 49,680 47,840 46,000 44,160 42,320 40,480 39,560

VAISA60HP 62,640 60,480 58,320 56,160 54,000 51,840 49,680 47,520 46,440


Heatingperformance(BtUH)atVariousoutdoortemperatures-VaISaHeatpumpswith2-StagecompressorModel Number

Outdoor Temperature

0º / -17.8ºC 10ºF / -12.2ºC 15ºF / -9.4ºC 20ºF / -6.7ºC 30ºF / -1.1ºC 40ºF / 4.4ºC 47ºF / 8.3ºC 50ºF / 10ºC 60ºF / 15.6ºC

VAIA24HPBTUH 9,660 12,420 13,800 15,180 17,940 20,700 23,000 23,460 26,220

COP 1.68 2.06 2.24 2.41 2.72 3.01 3.25 3.28 3.53

VAIA30HPBTUH 11,260 14,470 16,080 17,690 20,900 24,120 26,800 27,340 30,550

COP 1.76 2.16 2.34 2.52 2.85 3.15 3.34 3.43 3.69

VAIA36HPBTUH 15,120 19,440 21,600 23,760 28,080 32,400 36,000 36,720 41,040

COP 1.76 2.16 2.35 2.52 2.85 3.16 3.40 3.44 3.69

VAIA40HPBTUH 17,010 21,870 24,300 26,730 31,590 36,450 40,500 41,310 46,170

COP 1.76 2.16 2.35 2.52 2.85 3.16 3.40 3.43 3.69

VAIA48HP BTUH 17,220 22,140 24,600 27,060 31,980 36,900 41,000 41,820 46,740



electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VaISaHeatpumpswith2-Stagecompressor

Model Number

COMPRESSOROTHER

MOTORSOUTDOOR fAN

INDOORbLOWER (ECM)

VENTILATION

GREENWHEEL® ERV GREENCUbE™ ERV

VOLTS/Hz/PH RLA1 LRA2 MCC3 VOLTS / Hz / PH

QTy RPM4 fLA1 HP6 RPM4 fLA5 HP6AMPS AMPS

OAM7 EXM8 WD9 OAM7 EXM8

VAISA36HPA 208/230-60-1 16.6 82.0 26.0 208/230-60-1 1 1030 1.4 1/3 1500 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAISA40HPA 208/230-60-1 16.6 96.0 26.0 208/230-60-1 1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA48HPA 208/230-60-1 21.1 96.0 33.0 208/230-60-1 2 1500 2.8 1/2 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA60HPA 208/230-60-1 25.6 118.0 40.0 208/230-60-1 2 1500 2.8 1/2 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA36HPC 208/230-60-3 11.1 58.0 17.4 208/230-60-1 1 1030 1.4 1/3 1500 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAISA40HPC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA48HPC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 2 1500 2.8 1/2 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA60HPC 208/230-60-3 17.6 123.0 27.5 208/230-60-1 2 1500 2.8 1/2 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA36HPD 460-60-3 4.5 29.0 7.0 208/230-60-1 1 1030 1.4 1/3 1500 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAISA40HPD 460-60-3 6.1 44.0 9.5 208/230-60-1 1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA48HPD 460-60-3 6.4 41.0 10.0 208/230-60-1 2 1500 2.8 1/2 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA60HPD 460-60-3 9.0 62.0 14.0 208/230-60-1 2 1500 2.8 1/2 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.41RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower 7OAM - Outside Air Motor 8EXM-Exhaust Air Motor9WD-Wheel Drive MotorThe 460 volt units have a step down transformer for the 230 volt motors.

Summaryelectricalratings(WireSizing)-VaISaHeatpumpswith2-StagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentconfiguration


Model Number

VOLTAGE/PHASE



VAISA36HPA 208-230/1/60 26.0 40 52.0 60 n/a n/a 45.5 50 19.6 20 52.0 60 26.0 30 n/a n/a n/a n/a


VAISA48HPA 208-230/1/60 37.3 50 37.3 50 26.0 30 37.3 50 39.1 40 37.3 50 52.1 60 n/a n/a n/a n/a


VAISA36HPC 208-230/3/60 19.1 30 34.1 35 n/a n/a 41.6 45 n/a n/a 49.2 50 n/a n/a 41.6 45 22.5 25


VAISA48HPC 208-230/3/60 27.7 40 42.7 45 n/a n/a 50.2 60 n/a n/a 27.7 40 30.1 35 27.7 40 45.1 50


VAISA36HPD 460/3/60 8.2 15 15.7 20 n/a n/a 19.5 20 n/a n/a 23.2 25 n/a n/a 30.7 35 n/a n/a





conductors.1MCA = Maximum Continuous Current (Wiring Size Amps) 2MFS = Maximum Fuse Size or HACR Breaker




Summaryelectricalratings(WireSizing)–VaISaHeatpumpswith2-StagecompressorpowerVent-Ventilationconfiguration(“J”)


Model Number

VOLTAGE/PHASE



















Summaryelectricalratings(WireSizing)-VaISaHeatpumpswith2-StagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)


Model Number

VOLTAGE/PHASE




















Summaryelectricalratings(WireSizing)-VaISaHeatpumpswith2-StagecompressorGreencube™erV-Ventilationconfiguration(“Q”)


Model Number

VOLTAGE/PHASE



















Unitloadamps(Heating)-VaISaHeatpumpswith2-Stagecompressor

Model Number

VOLTAGEPh-Hz

Heat Pump Amps (maxi-

mum)






VAISA36HPA 208-230/1/60 21.8 22.2 22.4 24.4 20.8 31.3 41.7 n/a 42.6 53.1 63.5 n/a 43.0 53.5 63.9 n/a 43.2 53.7 64.1 n/a 45.2 55.7 66.1 n/a




VAISA36HPC 208-230/3/60 16.3 16.7 16.9 18.9 12.0 18.0 24.1 36.1 28.3 34.3 40.4 52.4 28.7 34.7 40.8 52.8 28.9 34.9 41.0 53.0 30.9 36.9 43.0 55.0

VAISA40HPC 208-230/3/60 19.1 19.5 19.7 21.7 12.0 18.0 24.1 36.1 31.1 37.1 43.2 55.2 31.5 37.5 43.6 55.6 31.7 37.7 43.8 55.8 33.7 39.7 45.8 57.8

VAISA48HPC 208-230/3/60 24.3 24.7 24.9 26.9 12.0 18.0 24.1 36.1 36.3 42.3 48.4 60.4 36.7 42.7 48.8 60.8 36.9 42.9 49.0 61.0 38.9 44.9 51.0 63.0

VAISA60HPC 208-230/3/60 28.5 28.9 29.1 31.1 12.0 18.0 24.1 36.1 40.5 46.5 52.6 64.6 40.9 46.9 53.0 65.0 41.1 47.1 53.2 65.2 43.1 49.1 55.2 67.2

VAISA36HPD 460/3/60 7.1 7.3 7.4 8.4 6.0 9.0 12.0 18.0 13.1 16.1 19.1 25.1 13.3 16.3 19.3 25.3 13.4 16.4 19.4 25.4 14.4 17.4 20.4 26.4

VAISA40HPD 460/3/60 9.6 9.8 9.9 10.9 6.0 9.0 12.0 18.0 15.6 18.6 21.6 27.6 15.8 18.8 21.8 27.8 15.9 18.9 21.9 27.9 16.9 19.9 22.9 28.9

VAISA48HPD 460/3/60 11.9 12.1 12.2 13.2 6.0 9.0 12.0 18.0 17.9 20.9 23.9 29.9 18.1 21.1 24.1 30.1 18.2 21.2 24.2 30.2 19.2 22.2 25.2 31.2

VAISA60HPD 460/3/60 14.5 14.7 14.8 15.8 6.0 9.0 12.0 18.0 20.5 23.5 26.5 32.5 20.7 23.7 26.7 32.7 20.8 23.8 26.8 32.8 21.8 24.8 27.8 33.8









GreenWheel® ERV H 230 60/1 0.4 0.12 230 60/1 1.0 0.17 230 60/1 0.2 0.01



SCHOLAR III AIR CONDITIONERS WITH 2-STAGE COMPRESSOR

certifiedefficiencyandcapacityratingsatanSI/aHrIStandard390-VaISaairconditionerswith2-Stagecompressor

Model NumberVAISA36 VAISA40 VAISA48 VAISA60

ACA ACC ACD ACA ACC ACD ACA ACC ACD ACA ACC ACD

Cooling bTUH1 - 2nd Stage 35,000 41,000 46,000 54,000

EER2 - 2nd Stage 11.55 11.40 11.00 10.10


Rated Air flow (CfM4) 1,200 1,300 1,550 1,650

ESP5 @ Rated Conditions 0.15 0.15 0.20 0.201Cooling and EER are rated at 95°F (35°C) outdoor and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air. 2EER=Energy Efficiency Ratio3Integrated Part Load Value is an integrated efficiency measure from 1st and 2nd stage capacity modulation.4CFM=Cubic Feet per Minute 5ESP=External Static PressureRatings are with no outside air. Performance will be affected by altitude. Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different voltage from that of the rating point will affect performance and air flow.

SensibletotalHeatratio@95ºf(35ºc)outsideairDB-VaISaairconditionerswith2-StagecompressorsModel Number

VAISA36 VAISA40 VAISA48 VAISA60

ACA ACC ACD ACA ACC ACD ACA ACC ACD ACA ACC ACD

Total Capacity 35,000 41,000 46,000 54,000



Rated Air flow (CfM1) 1,200 1,300 1,550 1,6501CFM=Cubic Feet per Minute Sensible heat ratios based upon ANSI/AHRI std. 390 outdoor air conditions of 95°F (35°C) and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air.

Stage2coolingperformance(BtUH)atVariousoutdoortemperatures-VaISaairconditionerswith2-StagecompressorsModel Number

Outdoor Temperature


VAISA36AC 40,600 39,200 37,800 36,400 35,000 33,600 32,200 30,800 30,100

VAISA40AC 47,560 45,920 44,280 42,640 41,000 39,360 37,720 36,080 35,260

VAISA48AC 53,360 51,520 49,680 47,840 46,000 44,160 42,320 40,480 39,560

VAISA60AC 62,640 60,480 58,320 56,160 54,000 51,840 49,680 47,520 46,440

Based upon ANSI/AHRI std. 390 return air conditions of 80°F DB/67° WB (26.5°C DB/19.5°C WB) at various outdoor temperatures. Return air at rated airflow.


electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VaISaairconditionerswith2Stagecompressor

Model Number

COMPRESSOROTHER

MOTORSOUTDOOR fAN

MOTORINDOOR bLOWER

MOTOR

VENTILATION

GreenWheel® ERVGreenCube™

ERV

AMPS AMPS

VOLTS-Hz-PH RLA1 LRA2 MCC3 VOLTS-Hz-PH RPM4 fLA5 HP6 RPM4 fLA5 HP6 OAM7 EXM8 WD9 OAM7 EXM8

VAISA36ACA 208/230-60-1 16.6 82.0 26.0 208/230-60-1 1030 1.4 1/3 1500 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAISA40ACA 208/230-60-1 16.6 96.0 26.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA48ACA 208/230-60-1 21.1 96.0 33.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA60ACA 208/230-60-1 25.6 118.0 40.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA36ACC 208/230-60-3 11.1 58.0 17.4 208/230-60-1 1030 1.4 1/3 1500 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAISA40ACC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA48ACC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA60ACC 208/230-60-3 17.6 123.0 27.5 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA36ACD 460-60-3 4.5 29.0 7.0 208/230-60-1 1030 1.4 1/3 1500 2.8 1/2 1.0 0.4 0.2 3.2 0.4

VAISA40ACD 460-60-3 6.1 44.0 9.5 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA48ACD 460-60-3 6.4 41.0 10.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.4

VAISA60ACD 460-60-3 9.0 62.0 14.0 208/230-60-1 1030 1.4 1/3 1500 4.3 3/4 1.0 0.4 0.2 3.2 0.41RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower 7OAM - Outside Air Motor 8EXM-Exhaust Air Motor9WD-Wheel Drive MotorThe 460 volt units have a step down transformer for the 230 volt motors.

Summaryelectricalratings(WireSizing)-VaISaairconditionerswith2-StagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentconfiguration




VAISA36ACA 208-230/1/60 26.0 40 29.8 40 42.9 45 55.9 60 n/a n/a

VAISA40ACA 208-230/1/60 27.5 40 31.3 40 44.4 45 57.4 60 n/a n/a

VAISA48ACA 208-230/1/60 33.1 50 33.1 50 44.4 45 57.4 60 n/a n/a

VAISA60ACA 208-230/1/60 38.7 60 38.7 60 44.4 45 57.4 60 n/a n/a

VAISA36ACC 208-230/3/60 19.1 30 19.1 30 26.3 30 33.9 35 48.9 50

VAISA40ACC 208-230/3/60 23.5 35 23.5 35 27.8 35 35.4 40 50.4 60

VAISA48ACC 208-230/3/60 23.5 35 23.5 35 27.8 35 35.4 40 50.4 60

VAISA60ACC 208-230/3/60 26.7 45 26.7 45 27.8 45 35.4 45 50.4 60

VAISA36ACD 460/3/60 8.2 15 9.4 15 13.2 15 16.9 20 24.4 25

VAISA40ACD 460/3/60 11.0 15 11.0 15 13.9 15 17.7 20 25.2 30

VAISA48ACD 460/3/60 11.4 15 11.4 15 13.9 15 17.7 20 25.2 30

VAISA60ACD 460/3/60 14.9 20 14.9 20 14.9 15 17.7 20 25.2 30






Summaryelectricalratings(WireSizing)-VaISaairconditionerswith2-StagecompressorpowerVent-Ventilationconfiguration(“J”)




VAISA36ACA 208-230/1/60 26.4 40 30.2 40 43.3 45 56.3 60 n/a n/a

VAISA40ACA 208-230/1/60 27.9 40 31.7 40 44.8 45 57.8 60 n/a n/a

VAISA48ACA 208-230/1/60 33.5 50 33.5 50 44.8 45 57.8 60 n/a n/a

VAISA60ACA 208-230/1/60 39.1 60 39.1 60 44.8 45 57.8 60 n/a n/a

VAISA36ACC 208-230/3/60 19.5 30 19.5 30 26.7 30 34.3 35 49.3 50

VAISA40ACC 208-230/3/60 23.9 35 23.9 35 28.2 35 35.8 40 50.8 60

VAISA48ACC 208-230/3/60 23.9 35 23.9 35 28.2 35 35.8 40 50.8 60

VAISA60ACC 208-230/3/60 27.1 45 27.1 45 28.2 45 35.8 45 50.8 60

VAISA36ACD 460/3/60 8.4 15 9.6 15 13.4 15 17.1 20 24.6 25

VAISA40ACD 460/3/60 11.2 15 11.2 15 14.1 15 17.9 20 25.4 30

VAISA48ACD 460/3/60 11.6 15 11.6 15 14.1 15 17.9 20 25.4 30

VAISA60ACD 460/3/60 15.1 20 15.1 20 14.1 15 17.9 20 25.4 30





Summaryelectricalratings(WireSizing)-VaISaairconditionerswith2-StagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)




VAISA36ACA 208-230/1/60 26.6 40 30.4 40 43.5 45 56.4 60 n/a n/a

VAISA40ACA 208-230/1/60 28.1 40 31.9 40 45.0 50 57.9 60 n/a n/a

VAISA48ACA 208-230/1/60 33.7 50 33.7 50 45.0 50 57.9 60 n/a n/a

VAISA60ACA 208-230/1/60 39.3 60 39.3 60 45.0 50 57.9 60 n/a n/a

VAISA36ACC 208-230/3/60 19.7 30 19.7 30 26.9 30 34.5 35 49.5 50

VAISA40ACC 208-230/3/60 24.1 35 24.1 35 28.4 35 36.0 40 51.0 60

VAISA48ACC 208-230/3/60 24.1 35 24.1 35 28.4 35 36.0 40 51.0 60

VAISA60ACC 208-230/3/60 27.3 45 27.3 45 28.4 45 36.0 45 51.0 60

VAISA36ACD 460/3/60 8.5 15 9.7 15 13.5 15 17.2 20 24.7 25

VAISA40ACD 460/3/60 11.3 15 11.3 15 14.2 15 18.0 20 25.5 30

VAISA48ACD 460/3/60 11.7 15 11.7 15 14.2 15 18.0 20 25.5 30

VAISA60ACD 460/3/60 15.2 20 15.2 20 14.2 15 18.0 20 25.5 30






Summaryelectricalratings(WireSizing)-VaISaairconditionerswith2-StagecompressorGreencube™erV-Ventilationconfiguration(“Q”)




VAISA36ACA 208-230/1/60 28.6 45 33.8 45 46.9 50 59.9 60 n/a n/a

VAISA40ACA 208-230/1/60 30.1 45 35.3 45 48.4 50 n/a n/a n/a n/a



VAISA36ACC 208-230/3/60 21.7 30 21.7 30 28.9 30 36.5 40 51.5 60

VAISA40ACC 208-230/3/60 26.1 35 26.1 35 30.4 35 38.0 40 53.0 60

VAISA48ACC 208-230/3/60 26.1 35 26.1 35 30.4 35 38.0 40 53.0 60

VAISA60ACC 208-230/3/60 31.3 45 31.3 45 31.3 45 38.0 45 53.0 60

VAISA36ACD 460/3/60 9.5 15 10.7 15 14.5 15 18.2 20 25.7 30

VAISA40ACD 460/3/60 12.3 15 12.3 15 15.2 20 19.0 20 26.5 30

VAISA48ACD 460/3/60 12.7 15 12.7 15 15.2 20 19.0 20 26.5 30

VAISA60ACD 460/3/60 15.9 20 15.9 20 15.9 20 19.0 20 26.5 30





Unitloadamps(Heating)-VaISaairconditionerswith2Stagecompressor

Model Number

VOLTAGEPh-Hz

Ventilation Air Movers, Max.

Amps




Heating Element (kW)Vent. Configuration

b1, N2 Vent. Configuration J3 Vent. Configuration H4 Vent. Configuration Q5


VAISA36ACA 208-230/1/60 3.8 4.2 6.4 4.4 20.8 31.3 41.7 n/a 24.6 35.1 45.5 n/a 25.0 35.5 45.9 n/a 25.2 35.7 46.1 n/a 27.2 37.7 48.1 n/a




VAISA36ACC 208-230/3/60 3.8 4.2 6.4 4.4 12.0 18.0 24.1 36.1 15.8 21.8 27.9 39.9 16.2 22.2 28.3 40.3 16.4 22.4 28.5 40.5 18.4 24.4 30.5 42.5

VAISA40ACC 208-230/3/60 5.3 5.7 7.9 5.9 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 17.7 23.7 29.8 41.8 17.9 23.9 30.0 42.0 19.9 25.9 32.0 44.0

VAISA48ACC 208-230/3/60 5.3 5.7 7.9 5.9 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 17.7 23.7 29.8 41.8 17.9 23.9 30.0 42.0 19.9 25.9 32.0 44.0

VAISA60ACC 208-230/3/60 5.3 5.7 7.9 5.9 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 17.7 23.7 29.8 41.8 17.9 23.9 30.0 42.0 19.9 25.9 32.0 44.0

VAISA36ACD 460/3/60 1.9 2.1 3.2 2.2 6.0 9.0 12.0 18.0 7.9 10.9 13.9 19.9 8.1 11.1 14.1 20.1 8.2 11.2 14.2 20.2 9.2 12.2 15.2 21.2

VAISA40ACD 460/3/60 2.7 2.9 4.0 3.0 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 8.9 11.9 14.9 20.9 9.0 12.0 15.0 21.0 10.0 13.0 16.0 22.0

VAISA48ACD 460/3/60 2.7 2.9 4.0 3.0 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 8.9 11.9 14.9 20.9 9.0 12.0 15.0 21.0 10.0 13.0 16.0 22.0

VAISA60ACD 460/3/60 2.7 2.9 4.0 3.0 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 8.9 11.9 14.9 20.9 9.0 12.0 15.0 21.0 10.0 13.0 16.0 22.0









GreenWheel® ERV H 230 60/1 0.4 0.12 230 60/1 1.0 0.17 230 60/1 0.2 0.01



Dehumidification-ModelVaISaDehumidification - Scholar III Model VAISA36 (HG)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 37,406 26,904 10,502 1200 51.6 9.9 9.5 Cooling

75 / 62.5 50 75 10,502 0 10,502 1200 72.4 9.9 9.5 Dehumid.

75 / 65.5 60 75 39,524 23,680 15,844 1200 54.7 15.0 14.3 Cooling

75 / 65.5 60 75 15,844 0 15,844 1200 73.0 15.0 14.3 Dehumid.

75 / 68 70 75 41,318 20,411 20,907 1200 57.3 19.7 18.9 Cooling

75 / 68 70 75 20,907 0 20,907 1200 73.0 19.7 18.9 Dehumid.

65 / 63 90 75 37,765 16,028 21,737 1200 57.2 20.5 19.7 Cooling

65 / 63 90 75 21,737 0 21,737 1200 64.6 20.5 19.7 Dehumid.

80 / 67 50 95 35,000 25,148 9,852 1200 57.9 9.3 8.9 Cooling

80 / 67 50 95 9,852 0 9,852 1200 77.3 9.3 8.9 Dehumid.

Dehumidification - Scholar III Model VAISA40 (HG)Indoor Conditions



Air flowIndoor




75 / 62.5 50 75 43,819 32,539 11,280 1300 50.7 10.7 10.2 Cooling

75 / 62.5 50 75 11,280 0 11,280 1300 73.4 10.7 10.2 Dehumid.

75 / 65.5 60 75 46,299 28,561 17,738 1300 53.8 16.8 16.1 Cooling

75 / 65.5 60 75 17,738 0 17,738 1300 73.8 16.8 16.1 Dehumid.

75 / 68 70 75 48,400 25,186 23,214 1300 56.5 22.0 21.1 Cooling

75 / 68 70 75 23,214 0 23,214 1300 74.1 22.0 21.1 Dehumid.

65 / 63 90 75 44,239 19,025 25,214 1300 51.3 23.8 22.9 Cooling

65 / 63 90 75 25,214 0 25,214 1300 67.8 23.8 22.9 Dehumid.

80 / 67 50 95 41,000 30,501 10,499 1300 57.1 9.9 9.5 Cooling

80 / 67 50 95 10,499 0 10,499 1300 78.4 9.9 9.5 Dehumid.

Dehumidification - Scholar III Model VAISA48 (HG)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 52,369 37,675 14,694 1550 50.7 13.9 13.3 Cooling

75 / 62.5 50 75 14,694 0 14,694 1550 73.3 13.9 13.3 Dehumid.

75 / 65.5 60 75 55,333 33,215 22,118 1550 53.7 20.9 20.0 Cooling

75 / 65.5 60 75 22,118 0 22,118 1550 73.5 20.9 20.0 Dehumid.

75 / 68 70 75 57,845 29,424 28,421 1550 56.3 26.8 25.7 Cooling

75 / 68 70 75 28,421 0 28,421 1550 73.9 26.8 25.7 Dehumid.

65 / 63 90 75 52,871 25,548 27,323 1550 51.2 25.8 24.7 Cooling

65 / 63 90 75 27,323 0 27,323 1550 66.5 25.8 24.7 Dehumid.

80 / 67 50 95 49,000 35,191 13,809 1550 56.9 13.0 12.5 Cooling

80 / 67 50 95 13,809 0 13,809 1550 77.9 13.0 12.5 Dehumid.

Dehumidification - Scholar III Model VAISA60 (HG)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 61,988 42,727 19,261 1650 50.2 18.2 17.4 Cooling

75 / 62.5 50 75 19,261 0 19,261 1650 74.2 18.2 17.4 Dehumid.

75 / 65.5 60 75 65,497 37,989 27,508 1650 53.2 26.0 24.9 Cooling

75 / 65.5 60 75 27,508 0 27,508 1650 74.5 26.0 24.9 Dehumid.

75 / 68 70 75 68,469 33,954 34,515 1650 55.7 32.6 31.2 Cooling

75 / 68 70 75 34,515 0 34,515 1650 74.8 32.6 31.2 Dehumid.

65 / 63 90 75 62,582 26,627 35,955 1650 51.1 33.9 32.5 Cooling

65 / 63 90 75 35,955 0 35,955 1650 66.0 33.9 32.5 Dehumid.

80 / 67 50 95 58,000 39,659 18,341 1650 56.1 17.3 16.6 Cooling

80 / 67 50 95 18,341 0 18,341 1650 78.4 17.3 16.6 Dehumid.


electricHeattable-Heatpumps&airconditionersOUTPUT

HEATER kW

5 7.5 10 15

240 VOLT (bTUH) 16,380 24,500 32,670 49,150208 VOLT (bTUH) 12,290 18,420 24,570 36,860480 VOLT (bTUH) 17,070 25,600 34,130 51,200

Electric heaters are field installed.

HotWateroutput-Heatpumps&airconditioners

ModelEntering Air Temperature

70°f Db, 60°f Wb

HOT WATER HEAT

180°f Entering Water Temperature - Water flow (GPM)

2 4 6 8 10 12 14 16 18 20

VA

IA24

Indoor Air Flow (CFM) 800 Total Capacity (Btu/Hr) 44,359 56,790 62,475 65,757 67,900 69,412 70,539 71,413 72,111 72,683 Leaving Air - DB (°F) 120.5 134.6 141.1 144.8 147.3 149.0 150.3 151.3 152.0 152.7 Leaving Air - WB (°F) 75.1 78.6 80.0 80.9 81.4 81.8 82.1 82.3 82.4 82.6 Leaving Fluid Temp. (°F) 134.4 150.8 158.6 163.1 166.1 168.1 169.7 170.8 171.8 172.5 Fluid Delta T (°F) 45.6 29.2 21.4 16.9 13.9 11.9 10.3 9.2 8.2 7.5 Water Press. Drop (Ft - H

2O) 0.2 0.6 1.3 1.7 3.7 5.3 7.2 9.3 11.7 14.4

VA

IA30

Indoor Air Flow (CFM) 1,000 Total Capacity (Btu/Hr) 47,529 62,536 69,762 74,030 76,863 78,887 80,408 81,595 82,549 83,333 Leaving Air - DB (°F) 113.3 126.9 133.5 137.4 140.0 141.8 143.2 144.3 145.1 145.8 Leaving Air - WB (°F) 73.2 76.7 78.3 79.2 79.8 80.2 80.5 80.8 80.9 81.1 Leaving Fluid Temp. (°F) 131.2 147.9 156.1 161.0 164.2 166.5 168.2 169.5 170.6 171.4 Fluid Delta T (°F) 48.8 32.1 23.9 19.0 15.8 13.5 11.8 10.5 9.4 8.6 Water Press. Drop (Ft - H

2O) 0.2 0.6 1.3 1.7 3.7 5.3 7.2 9.3 11.7 14.4

VA

IA36

& V

AIS

A36 Indoor Air Flow (CFM) 1,200

Total Capacity (Btu/Hr) 49,916 67,067 75,662 80,826 84,297 86,800 88,693 90,179 91,378 92,367 Leaving Air - DB (°F) 107.9 120.9 127.4 131.3 133.9 135.8 137.3 138.4 139.3 140.1 Leaving Air - WB (°F) 71.8 75.2 76.8 77.8 78.4 78.8 79.2 79.4 79.6 79.8 Leaving Fluid Temp. (°F) 128.7 145.6 154.1 159.2 162.7 165.1 167.0 168.4 169.6 170.5 Fluid Delta T (°F) 51.3 34.4 25.9 20.8 17.3 14.9 13.0 11.6 10.4 9.5 Water Press. Drop (Ft - H

2O) 0.2 0.6 1.3 1.7 3.7 5.3 7.2 9.3 11.7 14.4

VA

IA40

& V

AIS



2O) 0.2 0.6 1.3 1.7 3.7 5.3 7.2 9.3 11.7 14.4

VA

IA48

& V

AIS



2O) 0.2 0.6 1.3 1.7 3.7 5.3 7.2 9.3 11.7 14.4

VA

IA60

& V

AIS



2O) 0.2 0.6 1.3 1.7 3.7 5.3 7.2 9.3 11.7 14.4

ShippingWeight(pounds)bASIC MODEL 24 30 6 40 48 60

VOLTAGE - 230 1020 1020 1020 1030 1045 1060

VOLTAGE - 460 1045 1045 1045 1055 1070 1085

airfiltersQty per unit Size Type MERV1 Rating

Return Air Filter 2 46” x 24” x 2” Pleaded, disposable 72

Fresh Air Ventilation Filter 1 12” x 20 “ x 1” Fiberglass, disposable N/A

Exhaust Air Ventilation Filter 1 12” x 20” x 1” Fiberglass, disposable N/A1MERV = Minimum Efficiency Reporting Value2Standard return air filter has MERV rating of 7. Optional filters are available with MERV ratings of 8 and 13.

Scholar Combo 2/2011 rev. 3 Appendix C -1 HVAC Equipment

appenDIXc-perforMance/effIcIencyratInGS&electrIcalData- SCHOlar qV

note:tHecoolInGanDHeatInGperforManceatVarIoUSaMBIentTEmpEraTurES CaN bE dOWNlOadEd frOm THE lITEraTurE SECTION oftHeMarVaIrWeBSIte,WWW.MarVaIr.coM

certifiedefficiency&capacityratings@anSI/aHrIStandard390-Heatpumps&airconditionerswithSingleStagecompressorMODEL NUMbER VACA24 VACA30 VACA36 VACA40 VACA49 VACA60

Cooling (bTUH)1 24,000 29,600 35,000 39,500 46,000 54,000

EER2 9.40 9.00 9.10 9.00 9.25 9.15

High Temperature Heating3 20,600 25,600 30,000 36,600 40,000 51,000

High Temperatre COP4 3.00 3.00 3.00 3.00 3.00 3.00

Rated Air flow (CfM)5 800 1,000 1,200 1,300 1,750 1,850

ESP6 @ Rated Conditions 0.10 0.15 0.15 0.15 0.20 0.201Cooling is rated at 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air. 2EER=Energy Efficiency Ratio3 High Temperature Heating & COP (Heat Pumps only) are rated at 47°F DB/43°WB (8.3°C DB/6.1°C WB) outdoor and 70°F (21.1°C) return air.4 COP=Coefficient of Performance (Heat Pumps only)5CFM=Cubic Feet per Minute6ESP=External Static PressureRatings are with no outside air. Performance will be affected by altitude. Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different voltage from that of the rating point will affect performance and air flow.

SensibletotalHeatratio@95ºf(35ºc)outsideairDB-VacaHeatpumps&airconditionerswithSingleStagecompressorMODEL NUMbER VACA24 VACA30 VACA36 VACA40 VACA49 VACA60

Total Capacity 24,000 29,600 35,000 39,500 46,000 54,000



Rated Air flow (CfM)1 800 1,000 1,200 1,300 1,750 1,8501CFM=Cubic Feet per MinuteSensible Heat Ratios based upon ANSI/AHRI std. 390 outdoor conditions of 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air.

coolingperformance(BtUH)atVariousoutdoortemperatures-VacaHeatpumps&airconditionerswithSingleStagecompressorMODEL NUMbER

OUTDOOR TEMPERATURE75ºF / 24ºC 80ºF / 26.5ºC 85ºF / 29ºC 90ºF / 32ºC 95ºF / 35ºC 100ºF / 38ºC 105ºF / 40.5ºC 110ºF / 43.3ºC 115ºF / 46ºC

VACA24 27,840 26,880 25,920 24,960 24,000 23,040 22,080 21,120 20,640

VACA30 34,340 33,150 31,970 30,790 29,600 28,420 27,230 26,050 25,460

VACA36 40,600 39,200 37,800 36,400 35,000 33,600 32,200 30,800 30,100

VACA40 45,820 44,240 42,660 41,080 39,500 37,920 36,340 34,760 33,970

VACA49 53,360 51,520 49,680 47,840 46,000 44,160 42,320 40,480 39,560

VACA60 62,640 60,480 58,320 56,160 54,000 51,840 49,680 47,520 49,440



Heatingperformance(BtUH)atVariousoutdoortemperatures-VacaHeatpumpswithSingleStagecompressorMODEL NUMbER

OUTDOOR TEMPERATURE0ºF / -17.8ºC 10ºF / -12.2ºC 15ºF / -9.4ºC 20ºF / -6.7ºC 30ºF / -1.1ºC 40ºF / 4.4ºC 47ºF / 8.3ºC 50ºF / 10ºC 60ºF / 15.6ºC

VACA24HP1BTUH 10,080 12,960 14,400 15,840 18,720 21,600 24,000 24,480 27,360

COP 1.56 1.91 2.07 2.22 2.52 2.78 3.00 3.03 3.26

VACA30HP1BTUH 12,430 15,980 17,760 19,540 23,090 26,640 29,600 30,190 31,970

COP 1.56 1.91 2.07 2.23 2.52 2.78 3.00 3.03 3.26

VACA36HP1BTUH 14,700 18,900 21,000 23,100 27,300 31,500 35,000 35,700 39,900

COP 1.56 1.91 2.07 2.22 2.52 2.78 3.00 3.03 3.26

VACA40HP1BTUH 16,950 21,330 23,700 26,070 30,810 35,550 39,500 40,290 45,030

COP 1.55 1.91 2.07 2.22 2.52 2.78 3.00 3.03 3.26

VACA49HPBTUH 16,800 21,600 24,000 26,400 31,200 36,000 40,000 40,800 45,600

COP 1.56 1.91 2.07 2.23 2.52 2.79 3.00 3.03 3.26

VACA60HPBTUH 21,420 27,540 30,600 33,660 39,780 45,900 51,000 52,020 58,140

COP 1.56 1.91 2.07 2.23 2.52 2.78 3.00 3.03 3.26


ELECTRICAL DATA FOR VACA HEAT PUMPS WITHSINGLE STAGE COMPRESSORS

electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VacaHeatpumpswithSingleStagecompressor

MODELNUMbER

COMPRESSOR OUTDOOR fAN MOTOR INDOOR fAN MOTOR GREENWHEEL® ERV

VOLTS / Hz / PH RLA1 LRA2 MCC3 VOLTS / Hz / PH RPM4 fLA5 HP6 VOLTS / Hz / PH RPM4 fLA5 HP6 VOLTS RLA1

VACA24HP1A 208/230-60-1 12.8 64.0 20.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA30HP1A 208/230-60-1 14.1 77.0 22.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA36HP1A 208/230-60-1 17.9 112.0 28.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA40HP1A 208/230-60-1 19.8 109.0 31.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA49HPA 208/230-60-1 21.8 117.0 34.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA60HPA 208/230-60-1 26.2 134.0 41.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA24HP1C 208/230-60-3 8.3 61.0 13.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA30HP1C 208/230-60-3 9.0 71.0 14.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA36HP1C 208/230-60-3 13.2 88.0 20.6 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA40HP1C 208/230-60-3 13.6 83.1 21.2 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA49HPC 208/230-60-3 13.7 83.1 21.4 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA60HPC 208/230-60-3 15.6 111.0 24.4 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA24HP1D 460-60-3 5.1 28.0 8.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA30HP1D 460-60-3 5.6 38.0 8.8 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA36HP1D 460-60-3 6.0 44.0 9.3 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA40HP1D 460-60-3 6.1 41.0 9.5 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA49HPD 460-60-3 6.2 41.0 9.7 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA60HPD 460-60-3 7.7 52.0 12.1 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.21RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower

The 460 volt units have a step down transformer for the 230 volt motors.


Summaryelectricalratings(WireSizing)-VacaHeatpumpswithSingleStagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentconfiguration


MODELNUMbER

VOLTS-Ph-HzCkT #1 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2


VACA24HP1A 208-230/1/60 21.7 30 47.7 50 n/a n/a 41.3 45 19.6 20 47.7 50 26.0 30 n/a n/a n/a n/a




VACA49HPA 208-230/1/60 35.5 50 35.5 50 26.0 30 35.5 50 39.1 40 35.5 50 52.1 60 n/a n/a n/a n/a


VACA24HP1C 208-230/3/60 16.1 20 31.1 35 n/a n/a 38.6 40 n/a n/a 46.2 50 n/a n/a 38.6 40 22.5 25




VACA49HPC 208-230/3/60 25.3 35 40.3 45 n/a n/a 47.8 50 n/a n/a 55.5 60 n/a n/a 25.3 35 45.1 50

VACA60HPC 208-230/3/60 27.7 40 42.7 45 n/a n/a 50.2 60 n/a n/a 27.7 40 30.1 35 27.7 40 45.1 50

VACA24HP1D 460/3/60 9.2 15 16.7 20 n/a n/a 20.5 25 n/a n/a 24.2 25 n/a n/a 31.7 35 n/a n/a




VACA49HPD 460/3/60 11.9 20 19.4 20 n/a n/a 23.1 25 n/a n/a 26.9 30 n/a n/a 34.4 35 n/a n/a



sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps)2MFS = Maximum Fuse Size MCA & MFS are calculated at 230 volts for HPA & HPC models.


Summaryelectricalratings(WireSizing)-VacaHeatpumpswithSingleStagecompressorpowerVent-Ventilationconfiguration(“J”)


MODELNUMbER

VOLTAGE-Ph-HzCkT #1 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2
























Summaryelectricalratings(WireSizing)-VacaHeatpumpswithSingleStagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)


MODELNUMbER

VOLTAGE-Ph-HzCkT #1 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2 CkT #1 CkT #2























Unitloadamps(Heating)-VacaHeatpumpswithSingleStagecompressor

MODELNUMbER

VOLTAGEPHASEHERTz

HEAT PUMP AMPS (MAX)

LOAD Of RESISTIVE HEATING ELEMENTS ONLy

(AMPS)

TOTAL MAXIMUM HEATING AMPS

VENT. CONfIGURATION VENT. CONfIGURATION b1, N2 VENT. CONfIGURATION J3 VENT. CONfIGURATION H4

b1, N2 J3 H4 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kw 10 kw 15 kw 5 kW 7.5 kw 10 kw 15 kw 5 kW 7.5 kw 10 kw 15 kw

VACA24HP1A 208-230/1/60 18.5 19.5 19.7 20.8 31.3 41.7 n/a 39.3 49.8 60.2 n/a 40.3 50.8 61.2 n/a 40.5 51.0 61.4 n/a




VACA49HPA 208-230/1/60 29.9 30.9 31.1 20.8 31.3 41.7 n/a 50.7 61.2 71.6 n/a 51.7 62.2 72.6 n/a 51.9 62.4 72.8 n/a

VACA60HPA 208-230/1/60 34.3 35.3 35.5 20.8 31.3 41.7 n/a 55.1 65.6 76.0 n/a 56.1 66.6 77.0 n/a 56.3 66.8 77.2 n/a

VACA24HP1C 208-230/3/60 14.0 15.0 15.2 12.0 18.0 24.1 36.1 26.0 32.0 38.1 50.1 27.0 33.0 39.1 51.1 27.2 33.2 39.3 51.3

VACA30HP1C 208-230/3/60 14.7 15.7 15.9 12.0 18.0 24.1 36.1 26.7 32.7 38.8 50.8 27.7 33.7 39.8 51.8 27.9 33.9 40.0 52.0

VACA36HP1C 208-230/3/60 18.7 19.7 19.9 12.0 18.0 24.1 36.1 30.7 36.7 42.8 54.8 31.7 37.7 43.8 55.8 31.9 37.9 44.0 56.0

VACA40HP1C 208-230/3/60 19.3 20.3 20.5 12.0 18.0 24.1 36.1 31.3 37.3 43.4 55.4 32.3 38.3 44.4 56.4 32.5 38.5 44.6 56.6

VACA49HPC 208-230/3/60 21.8 22.8 23.0 12.0 18.0 24.1 36.1 33.8 39.8 45.9 57.9 34.8 40.8 46.9 58.9 35.0 41.0 47.1 59.1

VACA60HPC 208-230/3/60 23.7 24.7 24.9 12.0 18.0 24.1 36.1 35.7 41.7 47.8 59.8 36.7 42.7 48.8 60.8 36.9 42.9 49.0 61.0

VACA24HP1D 460/3/60 8.0 8.5 8.6 6.0 9.0 12.0 18.0 14.0 17.0 20.0 26.0 14.5 17.5 20.5 26.5 14.6 17.6 20.6 26.6

VACA30HP1D 460/3/60 8.5 9.0 9.1 6.0 9.0 12.0 18.0 14.5 17.5 20.5 26.5 15.0 18.0 21.0 27.0 15.1 18.1 21.1 27.1

VACA36HP1D 460/3/60 8.9 9.4 9.5 6.0 9.0 12.0 18.0 14.9 17.9 20.9 26.9 15.4 18.4 21.4 27.4 15.5 18.5 21.5 27.5

VACA40HP1D 460/3/60 9.0 9.5 9.6 6.0 9.0 12.0 18.0 15.0 18.0 21.0 27.0 15.5 18.5 21.5 27.5 15.6 18.6 21.6 27.6

VACA49HPD 460/3/60 10.3 10.8 10.9 6.0 9.0 12.0 18.0 16.3 19.3 22.3 28.3 16.8 19.8 22.8 28.8 16.9 19.9 22.9 28.9

VACA60HPD 460/3/60 11.8 12.3 12.4 6.0 9.0 12.0 18.0 17.8 20.8 23.8 29.8 18.3 21.3 24.3 30.3 18.4 21.4 24.4 30.41Motorized Damper 2Manual Fresh Air Damper 3PowerVent 4GreenWheel®ERV

Heating kW is rated at 240 volts on the HPA & HPC models. Derate heater output by 25% for operation at 208 volts. Total heating amps for single phase units with two circuits (#1 and #2)

includes both circuits. Heating kW is rated at 480 volts on the HPD models. Three phase models contain single phase motor loads.

Total heating and cooling amps includes all motors. Values shown are maximum phase loads. Loads are not equally balanced on each phase.


electricalcharacteristics-VentilationMotors

VENTILATION CONfIGURATIONVENTILATIONDESIGNATOR

EXHAUST AIR MOTOR OUTDOOR AIR MOTOR GREENWHEEL® ERV DRIVE MOTOR

VOLTSHz/PH fLA1 WATTS2 VOLTS

Hz/PH fLA1 WATTS2 VOLTS

Hz/PH fLA1 WATTS2

Motorized Damper B n/a n/a n/a n/a 230 60/1 1.0 127 n/a n/a n/a n/a

Manual Damper (Standard) N n/a n/a n/a n/a 230 60/1 1.0 127 n/a n/a n/a n/a

PowerVent with Motorized Damper J 230 60/1 1.0 127 230 60/1 1.0 127 n/a n/a n/a n/a

GreenWheel® Energy Recovery Ventilator H 230 60/1 1.0 127 230 60/1 1.0 127 230 60/1 0.2 7.51FLA = Full Load Amps 2Watts = Power Consumption Hz/Ph = Hertz (Frequency)/Number of Phases

ELECTRICAL DATA FOR VACA AIR CONDITIONERS WITHSINGLE STAGE COMPRESSORS

electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VacaairconditionerswithSingleStagecompressor

MODELNUMbER


VOLTS-Hz-Pz RLA1 LRA2 MCC3 VOLTS-Hz-PH RPM4 fLA5 HP6 VOLTS-Hz-PH RPM4 fLA5 HP6 VOLTS-Hz-PH RLA1

VACA24ACA 208/230-60-1 12.8 64.0 20.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA30ACA 208/230-60-1 14.1 77.0 22.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA36ACA 208/230-60-1 17.9 112.0 28.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA40ACA 208/230-60-1 19.8 109.0 31.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA49ACA 208/230-60-1 21.8 117.0 34.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA60ACA 208/230-60-1 26.2 134.0 41.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA24ACC 208/230-60-3 8.3 61.0 13.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA30ACC 208/230-60-3 9.0 71.0 14.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA36ACC 208/230-60-3 13.2 88.0 20.6 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA40ACC 208/230-60-3 13.6 83.1 21.2 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA49ACC 208/230-60-3 13.7 83.1 21.4 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA60ACC 208/230-60-3 15.6 111.0 24.4 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA24ACD 460-60-3 5.1 28.0 8.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA30ACD 460-60-3 5.6 38.0 8.8 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA36ACD 460-60-3 6.0 44.0 9.3 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA40ACD 460-60-3 6.1 41.0 9.5 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACA49ACD 460-60-3 6.2 41.0 9.7 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACA60ACD 460-60-3 7.7 52.0 12.1 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.21RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower

All 460 units will have a step down transformer for the 230 volts motors.


Summaryelectricalratings(WireSizing)-VacaairconditionerswithSingleStagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperw/freshairIntakeBlower(“B”)freshairVentconfiguration


MODEL NUMbER VOLTAGE/PHASECkT #1 CkT #1 CkT #1 CkT #1 CkT #1


VACA24ACA 208-230/1 21.7 30 29.8 30 42.9 45 55.9 60 n/a n/a

VACA30ACA 208-230/1 23.3 35 29.8 35 42.9 45 55.9 60 n/a n/a

VACA36ACA 208-230/1 28.1 45 29.8 45 42.9 45 55.9 60 n/a n/a

VACA40ACA 208-230/1 30.5 50 30.5 50 42.9 50 55.9 60 n/a n/a

VACA49ACA 208-230/1 35.5 50 35.5 50 44.4 50 57.4 60 n/a n/a

VACA60ACA 208-230/1 41.0 60 41.0 60 44.4 60 57.4 60 n/a n/a

VACA24ACC 208-230/3 16.1 20 18.8 20 26.3 30 33.9 35 48.9 50

VACA30ACC 208-230/3 17.0 25 18.8 25 26.3 30 33.9 35 48.9 50

VACA36ACC 208-230/3 22.2 35 22.2 35 26.3 35 33.9 35 48.9 50

VACA40ACC 208-230/3 22.7 35 22.7 35 26.3 35 33.9 35 48.9 50

VACA49ACC 208-230/3 25.3 35 25.3 35 28.7 40 35.4 40 50.4 60

VACA60ACC 208-230/3 27.7 40 27.7 40 31.9 45 35.4 45 50.4 60

VACA24ACD 460/3 9.2 15 9.4 15 13.2 15 16.9 20 24.4 25

VACA30ACD 460/3 9.9 15 9.9 15 13.2 15 16.9 20 24.4 25

VACA36ACD 460/3 10.4 15 10.4 15 13.2 15 16.9 20 24.4 25

VACA40ACD 460/3 10.5 15 10.5 15 13.2 15 16.9 20 24.4 25

VACA49ACD 460/3 11.9 20 11.9 20 13.9 20 17.7 20 25.2 30

VACA60ACD 460/3 13.7 20 13.7 20 13.9 20 17.7 20 25.2 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements of specific units, always refer to the data

label on the unit for sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps) 2MFS = Maximum Fuse Size or HACR Breaker



Summaryelectricalratings(WireSizing)-VacaairconditionerswithSingleStagecompressorpowerVent-Ventilationconfiguration(“J”)




VACA24ACA 208-230/1 22.7 35 30.8 35 43.9 45 56.9 60 n/a n/a

VACA30ACA 208-230/1 24.3 35 30.8 35 43.9 45 56.9 60 n/a n/a

VACA36ACA 208-230/1 29.1 45 30.8 45 43.9 45 56.9 60 n/a n/a

VACA40ACA 208-230/1 31.5 50 31.5 50 43.9 50 56.9 60 n/a n/a

VACA49ACA 208-230/1 36.5 50 36.5 50 45.4 50 58.4 60 n/a n/a

VACA60ACA 208-230/1 42.0 60 42.0 60 45.4 60 58.4 60 n/a n/a

VACA24ACC 208-230/3 17.1 25 19.8 25 27.3 30 34.9 35 49.9 50

VACA30ACC 208-230/3 18.0 25 19.8 25 27.3 30 34.9 35 49.9 50

VACA36ACC 208-230/3 23.2 35 23.2 35 27.3 35 34.9 35 49.9 50

VACA40ACC 208-230/3 23.7 35 23.7 35 27.3 35 34.9 35 49.9 50

VACA49ACC 208-230/3 26.3 35 26.3 35 29.7 40 36.4 40 51.4 60

VACA60ACC 208-230/3 28.7 40 28.7 40 32.9 45 36.4 45 51.4 60

VACA24ACD 460/3 9.7 15 9.7 15 13.7 15 17.4 20 24.9 25

VACA30ACD 460/3 10.4 15 10.4 15 13.7 15 17.4 20 24.9 25

VACA36ACD 460/3 10.9 15 10.9 15 13.7 15 17.4 20 24.9 25

VACA40ACD 460/3 11.0 15 11.0 15 13.7 15 17.4 20 24.9 25

VACA49ACD 460/3 12.4 20 12.4 20 14.4 20 18.2 20 25.7 30

VACA60ACD 460/3 14.2 20 14.2 20 14.4 20 18.2 20 25.7 30




MCA & MFS are calculated at 460 volts for all “D” models.



Summaryelectricalratings(WireSizing)-VacaairconditionerswithSingleStagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)




VACA24ACA 208-230/1 22.9 35 31.0 35 44.1 45 57.1 60 n/a n/a

VACA30ACA 208-230/1 24.5 35 31.0 35 44.1 45 57.1 60 n/a n/a

VACA36ACA 208-230/1 29.3 45 31.0 45 44.1 45 57.1 60 n/a n/a

VACA40ACA 208-230/1 31.7 50 31.7 50 44.1 50 57.1 60 n/a n/a

VACA49ACA 208-230/1 36.7 50 36.7 50 45.7 50 58.7 60 n/a n/a

VACA60ACA 208-230/1 42.2 60 42.2 60 45.7 60 58.7 60 n/a n/a

VACA24ACC 208-230/3 17.3 25 20.0 25 27.5 30 35.1 40 50.1 60

VACA30ACC 208-230/3 18.2 25 20.0 20 27.5 30 35.1 40 50.1 60

VACA36ACC 208-230/3 23.4 35 23.4 35 27.5 35 35.1 40 50.1 60

VACA40ACC 208-230/3 23.9 35 23.9 35 27.5 35 35.1 40 50.1 60

VACA49ACC 208-230/3 26.5 35 26.5 35 29.9 40 36.6 40 51.6 60

VACA60ACC 208-230/3 28.9 40 28.9 40 33.1 45 36.6 45 51.6 60

VACA24ACD 460/3 9.8 15 9.8 15 13.8 15 17.5 20 25.0 30

VACA30ACD 460/3 10.5 15 10.5 15 13.8 15 17.5 20 25.0 30

VACA36ACD 460/3 11.0 15 11.0 15 13.8 15 17.5 20 25.0 30

VACA40ACD 460/3 11.1 15 11.1 15 13.8 15 17.5 20 25.0 30

VACA49ACD 460/3 12.5 20 12.5 20 14.5 20 18.3 20 25.7 30

VACA60ACD 460/3 14.3 20 14.3 20 14.5 20 18.3 20 25.7 30




MCA & MFS are calculated at 460 volts for all “D” models.


Unitloadamps(Heating)-VacaairconditionerswithSingleStagecompressor

MODEL NUMbER

VOLTAGEPHASEHERTz

VENTILATION AIRMOVERS, MAX. AMPS

LOAD Of RESISTIVE HEATING ELEMENTS ONLy

(AMPS)



b1, N2 J3 H4 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW

VACA24ACA 208-230/1/60 3.8 3.5 3.7 20.8 31.3 41.7 n/a 23.3 33.8 44.2 n/a 24.3 34.8 45.2 n/a 24.5 35.0 45.4 n/a






VACA24ACC 208-230/3/60 3.8 3.5 3.7 12.0 18.0 24.1 36.1 14.5 20.5 26.6 38.6 15.5 21.5 27.6 39.6 15.7 21.7 27.8 39.8

VACA30ACC 208-230/3/60 3.8 3.5 3.7 12.0 18.0 24.1 36.1 14.5 20.5 26.6 38.6 15.5 21.5 27.6 39.6 15.7 21.7 27.8 39.8

VACA36ACC 208-230/3/60 3.8 3.5 3.7 12.0 18.0 24.1 36.1 14.5 20.5 26.6 38.6 15.5 21.5 27.6 39.6 15.7 21.7 27.8 39.8

VACA40ACC 208-230/3/60 3.8 3.5 3.7 12.0 18.0 24.1 36.1 14.5 20.5 26.6 38.6 15.5 21.5 27.6 39.6 15.7 21.7 27.8 39.8

VACA49ACC 208-230/3/60 5.3 6.3 6.5 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 18.3 24.3 30.4 42.4 18.5 24.5 30.6 42.6

VACA60ACC 208-230/3/60 5.3 6.3 6.5 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 18.3 24.3 30.4 42.4 18.5 24.5 30.6 42.6

VACA24ACD 460/3/60 1.9 1.8 1.9 6.0 9.0 12.0 18.0 7.3 10.3 13.3 19.3 7.8 10.8 13.8 19.8 7.9 10.9 13.9 19.9

VACA30ACD 460/3/60 1.9 1.8 1.9 6.0 9.0 12.0 18.0 7.3 10.3 13.3 19.3 7.8 10.8 13.8 19.8 7.9 10.9 13.9 19.9

VACA36ACD 460/3/60 1.9 1.8 1.9 6.0 9.0 12.0 18.0 7.3 10.3 13.3 19.3 7.8 10.8 13.8 19.8 7.9 10.9 13.9 19.9

VACA40ACD 460/3/60 1.9 1.8 1.9 6.0 9.0 12.0 18.0 7.3 10.3 13.3 19.3 7.8 10.8 13.8 19.8 7.9 10.9 13.9 19.9

VACA49ACD 460/3/60 2.7 3.2 3.3 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 9.2 12.2 15.2 21.2 9.3 12.3 15.3 21.3

VACA60ACD 460/3/60 2.7 3.2 3.3 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 9.2 12.2 15.2 21.2 9.3 12.3 15.3 21.31Motorized Damper 2Manual Fresh Air Damper 3PowerVent 4GreenWheel®ERV

Heating kW rated at 240v. for “A” & “C” models. Derate heat ouptput by 25% for operation on 208v. Total heating amps for all 1ø units with 15 kW of heat includes both circuits (#1 & #2).Heater kW rated at 480v. for all “D” models. Note: 3ø models contain single phase motor loads. Values shown are maximum phase loads. Loads are not equally balanced on each phase.Total heating and cooling amps include motor loads.


electricalcharacteristics-VentilationMotorsVENTILATION

CONfIGURATIONVENTILATIONDESIGNATOR

EXHAUST AIR MOTOR (EXM) OUTDOOR AIR MOTOR GREENWHEEL®ERV DRIVE MOTOR

VOLTS Hz/PH fLA1 WATTS2 VOLTS Hz/PH fLA1 WATTS2 VOLTS Hz/PH fLA1 WATTS

Motorized Damper b n/a n/a n/a n/a 230 60/1 1.0 127 n/a n/a n/a n/a

Manual Damper (standard) N n/a n/a n/a n/a 230 60/1 1.0 127 n/a n/a n/a n/a

PowerVent with Motorized Damper

J 230 60/1 1.0 127 230 60/1 1.0 127 n/a n/a n/a n/a

GreenWheel® Energy Recovery Ventilator H

230 60/1 1.0 127 230 60/1 1.0 127 230 60/1 0.2 7.5

1FLA = Full Load Amps 2Watts = Power Consumption Hz/Ph = Hertz (Frequency)/Number of Phases

Dehumidification-ModelVacaDehumidification - Scholar QV Model VACA24 (G)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 25,650 18,336 7,314 800 53.8 6.9 6.6 Cooling

75 / 62.5 50 75 7,314 0 7,314 800 73.7 6.9 6.6 Dehumid.

75 / 65.5 60 75 27,102 16,897 10,205 800 55.5 9.7 9.3 Cooling

75 / 65.5 60 75 10,205 0 10,205 800 74.1 9.7 9.3 Dehumid.

75 / 68 70 75 28,332 14,318 14,014 800 58.5 13.3 12.7 Cooling

75 / 68 70 75 14,014 0 14,014 800 74.4 13.3 12.7 Dehumid.

65 / 63 90 75 25,896 9,581 16,315 800 53.9 15.4 14.8 Cooling

65 / 63 90 75 16,315 0 16,315 800 64.8 15.4 14.8 Dehumid.

80 / 67 50 95 24,000 17,123 6,877 800 60.2 6.5 6.2 Cooling

80 / 67 50 95 6,877 0 6,877 800 78.8 6.5 6.2 Dehumid.

Dehumidification - Scholar QV Model VACA30 (G)Indoor Conditions



Air flowIndoor




75 / 62.5 50 75 31,635 21,934 9,701 1000 54.7 9.2 8.8 Cooling

75 / 62.5 50 75 9,701 0 9,701 1000 73.9 9.2 8.8 Dehumid.

75 / 65.5 60 75 33,426 19,410 14,016 1000 57.1 13.3 12.7 Cooling

75 / 65.5 60 75 14,016 0 14,016 1000 74.3 13.3 12.7 Dehumid.

75 / 68 70 75 34,943 17,262 17,681 1000 59.1 16.7 16.0 Cooling

75 / 68 70 75 17,681 0 17,681 1000 74.5 16.7 16.0 Dehumid.

65 / 63 90 75 33,122 11,803 21,319 1000 54.1 20.2 19.3 Cooling

65 / 63 90 75 21,319 0 21,319 1000 64.8 20.2 19.3 Dehumid.

80 / 67 50 95 29,600 20,414 9,186 1000 61.1 8.7 8.3 Cooling

80 / 67 50 95 9,186 0 9,186 1000 78.8 8.7 8.3 Dehumid.




Air flowIndoor




75 / 62.5 50 75 38,475 26,046 12,429 1200 54.9 11.8 11.3 Cooling

75 / 62.5 50 75 12,429 0 12,429 1200 72.7 11.8 11.3 Dehumid.

75 / 65.5 60 75 40,654 23,134 17,520 1200 57.2 16.6 15.9 Cooling

75 / 65.5 60 75 17,520 0 17,520 1200 73.3 16.6 15.9 Dehumid.

75 / 68 70 75 42,498 20,653 21,845 1200 59.1 20.7 19.8 Cooling

75 / 68 70 75 21,845 0 21,845 1200 73.3 20.7 19.8 Dehumid.

65 / 63 90 75 38,844 14,371 24,473 1200 53.9 23.2 22.2 Cooling

65 / 63 90 75 24,473 0 24,473 1200 64.9 23.2 22.2 Dehumid.

80 / 67 50 95 34,400 23,050 11,350 1200 61.4 11.2 10.7 Cooling

80 / 67 50 95 11,832 0 11,832 1200 77.6 11.2 10.7 Dehumid.


Dehumidification-ModelVacaDehumidification - Scholar QV Model VACA40 (G)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 43,819 29,625 14,194 1300 53.9 13.4 12.9 Cooling

75 / 62.5 50 75 14,194 0 14,194 1300 73.8 13.4 12.9 Dehumid.

75 / 65.5 60 75 46,299 26,347 19,952 1300 56.3 18.9 18.1 Cooling

75 / 65.5 60 75 19,952 0 19,952 1300 74.2 18.9 18.1 Dehumid.

75 / 68 70 75 48,401 23,554 24,847 1300 58.3 23.5 22.5 Cooling

75 / 68 70 75 24,847 0 24,847 1300 74.5 23.5 22.5 Dehumid.

65 / 63 90 75 44,239 16,451 27,788 1300 53.3 26.3 25.2 Cooling

65 / 63 90 75 27,788 0 27,788 1300 64.9 26.3 25.2 Dehumid.

80 / 67 50 95 41,000 27,471 13,529 1300 60.5 12.8 12.3 Cooling

80 / 67 50 95 13,529 0 13,529 1300 78.8 12.8 12.3 Dehumid.




Air flowIndoor




75 / 62.5 50 75 49,697 35,527 14,170 1740 56.1 13.4 12.9 Cooling

75 / 62.5 50 75 14,170 0 14,170 1740 73.6 13.4 12.9 Dehumid.

75 / 65.5 60 75 52,511 31,242 21,269 1740 58.4 20.1 19.3 Cooling

75 / 65.5 60 75 21,269 0 21,269 1740 74.0 20.1 19.3 Dehumid.

75 / 68 70 75 54,894 27,599 27,295 1740 60.3 25.8 24.8 Cooling

75 / 68 70 75 27,295 0 27,295 1740 74.4 25.8 24.8 Dehumid.

65 / 63 90 75 50,174 18,364 31,810 1740 55.2 30.1 28.9 Cooling

65 / 63 90 75 31,810 0 31,810 1740 64.8 30.1 28.9 Dehumid.

80 / 67 50 95 46,500 33,206 13,294 1740 62.4 12.6 12.1 Cooling

80 / 67 50 95 13,294 0 13,294 1740 78.4 12.6 12.1 Dehumid.




Air flowIndoor




75 / 62.5 50 75 59,850 40,123 19,727 1850 55.0 18.7 17.9 Cooling

75 / 62.5 50 75 19,727 0 19,727 1850 74.9 18.7 17.9 Dehumid.

75 / 65.5 60 75 63,238 35,695 27,543 1850 57.2 26.1 25.0 Cooling

75 / 65.5 60 75 27,543 0 27,543 1850 75.0 26.1 25.0 Dehumid.

75 / 68 70 75 66,105 31,920 34,185 1850 59.1 32.3 31.0 Cooling

75 / 68 70 75 34,185 0 34,185 1850 75.0 32.3 31.0 Dehumid.

65 / 63 90 75 60,424 22,376 38,048 1850 53.8 36.0 34.5 Cooling

65 / 63 90 75 38,048 0 38,048 1850 65.0 36.0 34.5 Dehumid.

80 / 67 50 95 56,000 37,184 18,816 1850 61.4 17.8 17.1 Cooling

80 / 67 50 95 18,816 0 18,816 1850 79.4 17.8 17.1 Dehumid.


certifiedefficiency&capacityratings@anSI/aHrIStandard390-VacSaHeatpumps&airconditionerswith2-StagecompressorMODEL NUMbER VACSA36 VACSA40 VACSA49 VACSA60

Cooling (bTUH)1 - 2nd Stage 33,600 38,000 45,500 52,000

EER2 - 2nd Stage 9.10 9.00 10.15 9.80


High Temperature Heating4 32,000 35,600 39,500 49,000

High Temperature COP5 3.05 3.00 3.10 3.00

Rated Air flow (CfM)6 1,200 1,300 1,700 1,850

ESP7 @ Rated Conditions 0.15 0.15 0.20 0.201Cooling is rated at 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air. 2EER=Energy Efficiency Ratio3Integrated Part Load Value is an integrated efficiency measure from 1st and 2nd stage capacity modulation.4High Temperature Heating & COP (Heat Pumps only) are rated at 47°F DB/43°WB (8.3°C DB/6.1°C WB) outdoor and 70°F (21.1°C) return air.5COP=Coefficient of Performance (Heat Pumps only)6CFM=Cubic Feet per Minute7ESP=External Static PressureRatings are with no outside air. Performance will be affected by altitude. Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different voltage from that of the rating point will affect performance and air flow.

SensibletotalHeatratio@95ºf(35ºc)outsideairDB-VacSaHeatpumps&airconditionerswith2StagecompressorMODEL NUMbER VACSA36 VACSA40 VACSA49 VACSA60

Total Capacity 33,600 38,000 45,500 52,000



Rated Air flow (CfM)1 1,200 1,300 1,700 1,8501CFM=Cubic Feet per MinuteSensible Heat Ratios based upon ANSI/AHRI std. 390 outdoor conditions of 95°F (35°C) outdoor and 80°F DB/67°F WB (26.5°C DB/19.5°C WB) return air.

coolingperformance(BtUH)atVariousoutdoortemperatures-VacSaHeatpumps&airconditionerswith2StagecompressorMODEL NUMbER

OUTDOOR TEMPERATURE75ºF / 24ºC 80ºF / 26.5ºC 85ºF / 29ºC 90ºF / 32ºC 95ºF / 35ºC 100ºF / 38ºC 105ºF / 40.5ºC 110ºF / 43.3ºC 115ºF / 46ºC

VACSA36 38,980 37,630 36,290 34,950 33,600 32,260 30,910 29,570 28,900

VACSA40 44,080 42,560 41,040 39,520 38,000 36,480 34,960 33,440 32,680

VACSA49 52,780 50,960 49,140 47,320 45,500 43,680 41,860 40,040 39,130

VACSA60 60,320 58,240 56,160 54,080 52,000 49,920 47,840 45,760 44,720


Heatingperformance(BtUH)atVariousoutdoortemperatures-VacSaHeatpumpsMODEL NUMbER

OUTDOOR TEMPERATURE0ºF / -17.8ºC 10ºF / -12.2ºC 15ºF / -9.4ºC 20ºF / -6.7ºC 30ºF / -1.1ºC 40ºF / 4.4ºC 47ºF / 8.3ºC 50ºF / 10ºC 60ºF / 15.6ºC

VACSA36HPBTUH 13,400 17,280 19,200 21,120 24,960 28,800 32,000 32,640 36,480

COP 1.58 1.94 2.10 2.26 2.56 2.83 3.05 3.08 3.31

VACSA40HPBTUH 14,950 19,220 21,360 23,500 27,770 32,040 35,600 36,310 40,580

COP 1.56 1.91 2.07 2.23 2.52 2.79 3.00 3.03 3.26

VACSA49HPBTUH 16,590 21,330 23,700 26,070 30,810 35,550 39,500 40,290 45,030

COP 1.61 1.97 2.14 2.30 2.60 2.88 3.10 3.13 3.36

VACSA60HPBTUH 20,580 26,460 29,400 32,340 38,220 44,100 49,000 49,980 55,860

COP 1.56 1.91 2.07 2.23 2.52 2.78 3.00 3.03 3.26



ELECTRICAL DATA FOR VACSA HEAT PUMPS WITH2 STAGE COMPRESSORS

electricalcharacteristics-compressor,Ventilation,fan&BlowerMotors-VacSaHeatpumpswith2-Stagecompressor

MODELNUMbER


VOLTS-Hz-PH RLA1 LRA2 MCC3 VOLTS-Hz-PH RPM4 fLA5 HP6 VOLTS-Hz-PH RPM4 TyPE SETTING fLA5 HP6 VOLTS RLA1

VACSA36HPA 208/230-60-1 16.6 82.0 26.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 ECM 70% 2.8 1/2 208/230-60-1 2.2

VACSA40HPA 208/230-60-1 16.6 96.0 26.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 ECM 80% 2.8 1/2 208/230-60-1 2.2

VACSA49HPA 208/230-60-1 21.1 96.0 33.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 ECM 70% 4.3 3/4 208/230-60-1 2.2

VACSA60HPA 208/230-60-1 25.6 118.0 40.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 ECM 75% 4.3 3/4 208/230-60-1 2.2

VACSA36HPC 208/230-60-3 11.1 58.0 17.4 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 ECM 70% 2.8 1/2 208/230-60-1 2.2

VACSA40HPC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 ECM 80% 2.8 1/2 208/230-60-1 2.2

VACSA49HPC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 ECM 70% 4.3 3/4 208/230-60-1 2.2

VACSA60HPC 208/230-60-3 17.6 123.0 27.5 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 ECM 75% 4.3 3/4 208/230-60-1 2.2

VACSA36HPD 460-60-3 4.5 29.0 7.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 ECM 70% 2.8 1/2 208/230-60-1 2.2

VACSA40HPD 460-60-3 6.1 44.0 9.5 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 ECM 80% 2.8 1/2 208/230-60-1 2.2

VACSA49HPD 460-60-3 6.4 41.0 10.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 ECM 70% 4.3 3/4 208/230-60-1 2.2

VACSA60HPD 460-60-3 9.0 62.0 14.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 ECM 75% 4.3 3/4 208/230-60-1 2.21RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower

The 460 volt units will have a step down transformer for the 230 volt motors.

Summaryelectricalratings(WireSizing)-VacSaHeatpumpswith2-StagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentilationconfiguration


MODELMUNbER

VOLTAGEPh-Hz



VACSA36HPA 208-230/1/60 26.5 40 52.5 60 n/a n/a 46.0 50 19.6 20 52.5 60 26.0 30 n/a n/a n/a n/a


VACSA49HPA 208-230/1/60 34.6 50 34.6 50 26.0 30 34.6 50 39.1 40 34.6 50 52.1 60 n/a n/a n/a n/a


VACSA36HPC 208-230/3/60 19.6 30 34.6 35 n/a n/a 42.1 45 n/a n/a 49.7 50 n/a n/a 42.1 45 22.5 25



VACSA60HPC 208-230/3/60 30.2 45 45.2 50 n/a n/a 52.7 60 n/a n/a 30.2 45 30.1 35 30.2 45 45.1 50

VACSA36HPD 460/3/60 8.2 15 16.0 20 n/a n/a 19.7 20 n/a n/a 23.5 25 n/a n/a 31.0 35 n/a n/a








Summaryelectricalratings(WireSizing)-VacSaHeatpumpswith2-StagecompressorpowerVent-Ventilationconfiguration(“J”)


MODELNUMbER

VOLTAGEPh-Hz


















Summaryelectricalratings(WireSizing)-VacSaHeatpumpswith2-StagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)


MODELNUMbER

VOLTAGEPh-Hz



















Unitloadamps(Heating)-VacSaHeatpumpswith2-Stagecompressor

MODEL NUMbER

VOLTAGEPHASEHERTz

MAXIMUM HEAT PUMP AMPS

LOAD Of RESISTIVEHEATING ELEMENTS ONLy

(AMPS)


VENT. CONfIGURATION b1 & N2 PowerVent “J” GreenWheel® “H”

b1, N2 J3 H4 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kw 10 kw 15 kw 5 kW 7.5 kw 10 kw 15 kw 5 kW 7.5 kw 10 kw 15 kw

VACSA36HPA 208-230/1/60 22.3 23.3 23.5 20.8 31.3 41.7 n/a 43.1 53.6 64.0 n/a 44.1 54.6 65.0 n/a 44.3 54.8 65.2 n/a




VACSA36HPC 208-230/3/60 16.8 17.8 18.0 12.0 18.0 24.1 36.1 28.8 34.8 40.9 52.9 29.8 35.8 41.9 53.9 30.0 36.0 42.1 54.1

VACSA40HPC 208-230/3/60 19.1 20.1 20.3 12.0 18.0 24.1 36.1 31.1 37.1 43.2 55.2 32.1 38.1 44.2 56.2 32.3 38.3 44.4 56.4

VACSA49HPC 208-230/3/60 21.6 22.6 22.8 12.0 18.0 24.1 36.1 33.6 39.6 45.7 57.7 34.6 40.6 46.7 58.7 34.8 40.8 46.9 58.9

VACSA60HPC 208-230/3/60 25.8 26.8 27.0 12.0 18.0 24.1 36.1 37.8 43.8 49.9 61.9 38.8 44.8 50.9 62.9 39.0 45.0 51.1 63.1

VACSA36HPD 460/3/60 7.4 7.9 8.0 6.0 9.0 12.0 18.0 13.4 16.4 19.4 25.4 13.9 16.9 19.9 25.9 14.0 17.0 20.0 26.0

VACSA40HPD 460/3/60 9.0 9.5 9.6 6.0 9.0 12.0 18.0 15.0 18.0 21.0 27.0 15.5 18.5 21.5 27.5 15.6 18.6 21.6 27.6

VACSA49HPD 460/3/60 8.6 9.1 9.2 6.0 9.0 12.0 18.0 14.6 17.6 20.6 26.6 15.1 18.1 21.1 27.1 15.2 18.2 21.2 27.2

VACSA60HPD 460/3/60 11.8 12.3 12.4 6.0 9.0 12.0 18.0 17.8 20.8 23.8 29.8 18.3 21.3 24.3 30.3 18.4 21.4 24.4 30.41Motorized Damper 2Manual Fresh Air Damper 3PowerVent 4GreenWheel®ERV

Heating kW is rated at 240 volts on the HPA & HPC models. Derate heater output by 25% for operation at 208 volts. Total heating amps for single phase units with two circuits (#1 and #2)

includes both circuits. Heating kW is rated at 480 volts on the HPD models. Three phase models contain single phase motor loads.









J 230 60/1 1.0 127 230 60/1 1.0 127 n/a n/a n/a n/a


230 60/1 1.0 127 230 60/1 1.0 127 230 60/1 0.2 7.5


ELECTRICAL DATA FOR VACSA AIR CONDITIONERSWITH 2 STAGE COMPRESSORS

electricalcharacteristics-compressor,fan,Ventilation&BlowerMotors-VacSaairconditionerswith2-Stagecompressor

MODEL NUM-bER


VOLTS-Hz-PH RLA1 LRA2 MCC3 VOLTS-Hz-PH RPM4 fLA5 HP6 VOLTS-Hz-PH RPM4 fLA5 HP6 VOLTS-Hz-PH RLA1

VACSA36ACA 208/230-60-1 16.6 82.0 26.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACSA40ACA 208/230-60-1 16.6 96.0 26.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACSA49ACA 208/230-60-1 21.1 96.0 33.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACSA60ACA 208/230-60-1 25.6 118.0 40.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACSA36ACC 208/230-60-3 11.1 58.0 17.4 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACSA40ACC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACSA49ACC 208/230-60-3 13.4 88.0 21.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACSA60ACC 208/230-60-3 17.6 123.0 27.5 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACSA36ACD 460-60-3 4.5 29.0 7.0 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACSA40ACD 460-60-3 6.1 44.0 9.5 208/230-60-1 1060 1.9 1/3 208/230-60-1 1500 2.8 1/2 208/230-60-1 2.2

VACSA49ACD 460-60-3 6.4 41.0 10.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.2

VACSA60ACD 460-60-3 9.0 62.0 14.0 208/230-60-1 1040 2.9 1/2 208/230-60-1 1500 4.3 3/4 208/230-60-1 2.21RLA = Rated Load Amps 2LRA = Locked Rotor Amps 3MCC = Maximum Continuous Current 4RPM = Revolutions per Minute5FLA = Full Load Amps 6HP = Horsepower

The 460 volt units will have a step down transformer for the 230 volt motors.


Summaryelectricalratings(WireSizing)-VacSaairconditionerswith2-StagecompressorManualDamperwithfreshairIntakeBlower(“n”)orMotorizedDamperwithfreshairIntakeBlower(“B”)freshairVentilationconfiguration

ELECTRIC HEAT 000 = None 050 =5 kW 075 =7.5 kW 10 = 10 kW 15 = 15 kW

MODELNUMbER

VOLTAGEPHASE

CkT #1 CkT #1 CkT #1 CkT #1 CkT #1


VACSA36ACA 208-230/1 26.5 40 29.8 40 42.9 45 55.9 60 n/a n/a

VACSA40ACA 208-230/1 26.5 40 29.8 40 42.9 45 55.9 60 n/a n/a

VACSA49ACA 208-230/1 34.6 50 35.5 50 44.4 50 57.4 60 n/a n/a

VACSA60ACA 208-230/1 40.2 60 41.0 60 44.4 60 57.4 60 n/a n/a

VACSA36ACC 208-230/3 19.6 30 19.6 30 26.3 30 33.9 35 48.9 50

VACSA40ACC 208-230/3 22.5 35 22.5 35 26.3 35 33.9 35 48.9 50

VACSA49ACC 208-230/3 25.0 35 25.3 35 28.7 40 35.4 40 50.4 60

VACSA60ACC 208-230/3 30.2 45 27.7 40 31.9 45 35.4 45 50.4 60

VACSA36ACD 460/3 8.5 15 9.4 15 13.2 15 16.9 20 24.4 25

VACSA40ACD 460/3 10.5 15 10.5 15 13.2 15 16.9 20 24.4 25

VACSA49ACD 460/3 12.1 15 12.1 15 13.9 20 17.7 20 25.2 30

VACSA60ACD 460/3 15.4 20 15.4 20 13.9 20 17.7 20 25.2 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements

of specific units, always refer to the data label on the unit for sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps)2MFS = Maximum Fuse Size MCA & MFS are calculated at 230 volts for HPA & HPC models.

MCA & MFS are calculated at 460 volts for all HPD models. All 460 units will have a step down transformer for the 230 volts

motors.

Summaryelectricalratings(WireSizing)-VacSaairconditionerswith2-StagecompressorpowerVent-Ventilationconfiguration(“J”)


MODELNUMbER

VOLTAGEPHASE

CkT #1 CkT #1 CkT #1 CkT #1 CkT #1


VACSA36ACA 208-230/1/60 27.5 40 30.8 40 43.9 45 56.9 60 n/a n/a

VACSA40ACA 208-230/1/60 27.5 40 30.8 40 43.9 45 56.9 60 n/a n/a

VACSA49ACA 208-230/1/60 35.6 50 35.6 50 45.4 50 58.4 60 n/a n/a

VACSA60ACA 208-230/1/60 41.2 60 41.2 60 45.4 60 58.4 60 n/a n/a

VACSA36ACC 208-230/3/60 20.6 30 20.6 30 27.3 30 34.9 35 49.9 50

VACSA40ACC 208-230/3/60 23.5 35 23.5 35 27.3 35 34.9 35 49.9 50

VACSA49ACC 208-230/3/60 26.0 35 26.3 35 29.7 40 36.4 40 51.4 60

VACSA60ACC 208-230/3/60 31.2 45 28.7 40 32.9 45 36.4 45 51.4 60

VACSA36ACD 460/3/60 9.0 15 9.9 15 13.7 15 17.4 20 24.9 25

VACSA40ACD 460/3/60 11.0 15 11.0 15 13.7 15 17.4 20 24.9 25

VACSA49ACD 460/3/60 13.1 15 13.1 15 14.4 20 18.2 20 25.7 30

VACSA60ACD 460/3/60 16.4 25 16.4 25 14.4 25 18.2 25 25.7 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements

of specific units, always refer to the data label on the unit for sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps)2MFS = Maximum Fuse Size MCA & MFS are calculated at 230 volts for HPA & HPC models.

MCA & MFS are calculated at 460 volts for all HPD models. All 460 units will have a step down transformer for the 230 volts

motors.


Summaryelectricalratings(WireSizing)-VacSaairconditionerswith2-StagecompressorGreenWheel®erV-Ventilationconfiguration(“H”)


MODEL NUM-bER

VOLTS-Hz-PHCkT #1 CkT #1 CkT #1 CkT #1 CkT #1


VACSA36ACA 208-230/1/60 27.7 40 31.0 40 44.0 45 57.1 60 n/a n/a

VACSA40ACA 208-230/1/60 27.7 40 31.0 40 44.0 45 57.1 60 n/a n/a

VACSA49ACA 208-230/1/60 35.8 50 35.8 50 45.7 50 58.7 60 n/a n/a

VACSA60ACA 208-230/1/60 41.4 60 41.4 60 45.7 60 58.7 60 n/a n/a

VACSA36ACC 208-230/3/60 20.8 25 20.8 25 27.5 30 35.1 40 50.1 60

VACSA40ACC 208-230/3/60 23.7 30 23.7 30 27.5 30 35.1 40 50.1 60

VACSA49ACC 208-230/3/60 26.2 35 26.5 35 29.9 40 36.6 40 51.6 60

VACSA60ACC 208-230/3/60 31.4 45 28.9 40 33.1 45 36.6 45 51.6 60

VACSA36ACD 460/3/60 9.1 15 10.0 15 13.8 15 17.5 20 25.0 30

VACSA40ACD 460/3/60 11.1 15 11.1 15 13.8 15 17.5 20 25.0 30

VACSA49ACD 460/3/60 13.2 15 13.2 15 14.5 20 18.3 20 25.7 30

VACSA60ACD 460/3/60 16.5 25 16.5 25 14.5 25 18.3 25 25.7 30

This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the

requirements of specific units, always refer to the data label on the unit for sizing conductors.1MCA = Maximum Continuous Current (Wiring Size Amps)2MFS = Maximum Fuse Size MCA & MFS are calculated at 230 volts for HPA & HPC models.

MCA & MFS are calculated at 460 volts for all HPD models. All 460 units will have a step down transformer for the 230

volts motors.

Unitloadamps(Heating)-VacSaairconditionerswith2-Stagecompressor

MODEL NUMbER

VOLTAGEPHASEHERTz

VENTILATION AIR MOVERS, MAX

AMPSLOAD Of RESISTIVE HEATING

ELEMENTS ONLy (AMPS)

TOTAL HEATING AMPS (MAX)


b1, N2 J3 H4 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW

VACSA36ACA 208-230/1/60 3.8 3.5 3.7 20.8 31.3 41.7 n/a 23.3 33.8 44.2 n/a 24.3 34.8 45.2 n/a 24.5 35.0 45.4 n/a




VACSA36ACC 208-230/3/60 3.8 3.5 3.7 12.0 18.0 24.1 36.1 14.5 20.5 26.6 38.6 15.5 21.5 27.6 39.6 15.7 21.7 27.8 39.8

VACSA40ACC 208-230/3/60 3.8 3.5 3.7 12.0 18.0 24.1 36.1 14.5 20.5 26.6 38.6 15.5 21.5 27.6 39.6 15.7 21.7 27.8 39.8

VACSA49ACC 208-230/3/60 5.3 6.3 6.5 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 18.3 24.3 30.4 42.4 18.5 24.5 30.6 42.6

VACSA60ACC 208-230/3/60 5.3 6.3 6.5 12.0 18.0 24.1 36.1 17.3 23.3 29.4 41.4 18.3 24.3 30.4 42.4 18.5 24.5 30.6 42.6

VACSA36ACD 460/3/60 1.9 1.8 1.9 6.0 9.0 12.0 18.0 7.3 10.3 13.3 19.3 7.8 10.8 13.8 19.8 7.9 10.9 13.9 19.9

VACSA40ACD 460/3/60 1.9 1.8 1.9 6.0 9.0 12.0 18.0 7.3 10.3 13.3 19.3 7.8 10.8 13.8 19.8 7.9 10.9 13.9 19.9

VACSA49ACD 460/3/60 2.7 3.2 3.3 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 9.2 12.2 15.2 21.2 9.3 12.3 15.3 21.3

VACSA60ACD 460/3/60 2.7 3.2 3.3 6.0 9.0 12.0 18.0 8.7 11.7 14.7 20.7 9.2 12.2 15.2 21.2 9.3 12.3 15.3 21.31Motorized Damper 2Manual Fresh Air Damper 3PowerVent 4GreenWheel®ERV

Heating kW is rated at 240 volts on the HPA & HPC models. Derate heater output by 25% for operation at 208 volts. Total heating amps for single phase units with two circuits (#1 and #2) includes

both circuits. Heating kW is rated at 480 volts on the HPD models. Three phase models contain single phase motor loads.









J 230 60/1 1.0 127 230 60/1 1.0 127 n/a n/a n/a n/a


230 60/1 1.0 127 230 60/1 1.0 127 230 60/1 0.2 7.5



Dehumidification-ModelVacSaDehumidification - Scholar QV Model VACSA36 (G)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 36,979 27,054 9,925 1200 54.2 9.4 9.0 Cooling

75 / 62.5 50 75 9,925 0 9,925 1200 72.6 9.4 9.0 Dehumid.

75 / 65.5 60 75 39,072 23,752 15,320 1200 56.7 14.5 13.9 Cooling

75 / 65.5 60 75 15,320 0 15,320 1200 73.2 14.5 13.9 Dehumid.

75 / 68 70 75 40,846 20,948 19,898 1200 58.9 18.8 18.1 Cooling

75 / 68 70 75 19,898 0 19,898 1200 73.2 18.8 18.1 Dehumid.

65 / 63 90 75 37,333 13,759 23,574 1200 54.4 22.3 21.4 Cooling

65 / 63 90 75 23,574 0 23,574 1200 64.8 22.3 21.4 Dehumid.

80 / 67 50 95 34,600 25,339 9,261 1200 60.5 8.8 8.4 Cooling

80 / 67 50 95 9,261 0 9,261 1200 77.5 8.8 8.4 Dehumid.

Dehumidification - Scholar QV Model VACSA40 (G)Indoor Conditions



Air flowIndoor




75 / 62.5 50 75 41,147 28,665 12,482 1300 54.6 11.8 11.3 Cooling

75 / 62.5 50 75 12,482 0 12,482 1300 73.8 11.8 11.3 Dehumid.

75 / 65.5 60 75 43,477 25,376 18,101 1300 57.0 17.1 16.4 Cooling

75 / 65.5 60 75 18,101 0 18,101 1300 74.2 17.1 16.4 Dehumid.

75 / 68 70 75 45,450 22,548 22,902 1300 59.0 21.7 20.8 Cooling

75 / 68 70 75 22,902 0 22,902 1300 74.5 21.7 20.8 Dehumid.

65 / 63 90 75 41,542 15,349 26,193 1300 54.1 24.8 23.8 Cooling

65 / 63 90 75 26,193 0 26,193 1300 64.9 24.8 23.8 Dehumid.

80 / 67 50 95 38,500 26,728 11,772 1300 61.0 11.1 10.7 Cooling

80 / 67 50 95 11,772 0 11,772 1300 78.8 11.1 10.7 Dehumid.

Dehumidification - Scholar QV Model VACSA49 (G)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 48,621 34,864 13,757 1740 56.5 13.0 12.5 Cooling

75 / 62.5 50 75 13,757 0 13,757 1740 73.6 13.0 12.5 Dehumid.

75 / 65.5 60 75 51,381 30,633 20,748 1740 58.7 19.6 18.8 Cooling

75 / 65.5 60 75 20,748 0 20,748 1740 74.0 19.6 18.8 Dehumid.

75 / 68 70 75 53,713 27,039 26,674 1740 60.6 25.2 24.2 Cooling

75 / 68 70 75 26,674 0 26,674 1740 74.4 25.2 24.2 Dehumid.

65 / 63 90 75 49,095 17,937 31,158 1740 55.5 29.5 28.3 Cooling

65 / 63 90 75 31,158 0 31,158 1740 64.9 29.5 28.3 Dehumid.

80 / 67 50 95 45,500 32,600 12,900 1740 62.7 12.2 11.7 Cooling

80 / 67 50 95 12,900 0 12,900 1740 78.4 12.2 11.7 Dehumid.

Dehumidification - Scholar QV Model VACSA60 (G)


OutdoorAmbient


Air flowIndoor




75 / 62.5 50 75 57,713 38,998 18,715 1850 55.5 17.7 17.0 Cooling

75 / 62.5 50 75 18,715 0 18,715 1850 74.9 17.7 17.0 Dehumid.

75 / 65.5 60 75 60,980 34,626 26,354 1850 57.7 24.9 23.9 Cooling

75 / 65.5 60 75 26,354 0 26,354 1850 75.0 24.9 23.9 Dehumid.

75 / 68 70 75 63,747 30,903 32,844 1850 59.6 31.1 29.8 Cooling

75 / 68 70 75 32,844 0 32,844 1850 75.0 31.1 29.8 Dehumid.

65 / 63 90 75 58,266 21,004 37,262 1850 54.5 35.3 33.8 Cooling

65 / 63 90 75 37,262 0 37,262 1850 65.0 35.3 33.8 Dehumid.

80 / 67 50 95 54,000 36,187 17,813 1850 61.9 16.9 16.2 Cooling

80 / 67 50 95 17,813 0 17,813 1850 79.4 16.9 16.2 Dehumid.


HotWateroutput-Heatpumps&airconditioners

Entering Air Temperature70°F DB, 60°F WB

Scholar QV HOT WATER PERFORMANCE180 °F Entering Water Temperature

Water Flow (GPM)

2 4 6 8 10 12 14 16 18 20 Indoor Air Flow (CFM) 800

Total Capacity (Btu/Hr) 39,756 48,737 52,668 54,894 56,334 57,346 58,099 58,681 59,146 59,526

Leaving Air - DB (°F) 115.3 125.5 130.0 132.5 134.2 135.3 136.2 136.8 137.4 137.8

Leaving Air - WB (°F) 73.7 76.3 77.3 77.9 78.3 78.6 78.8 79.0 79.1 79.2

Leaving Fluid Temp. (°F) 139.4 155.1 162.0 165.9 168.5 170.2 171.5 172.5 173.3 173.9

Fluid Delta T (°F) 40.6 24.9 18.0 14.1 11.5 9.8 8.5 7.5 6.7 6.1

Water Press. Drop (Ft - H2O) 0.2 0.6 1.4 2.4 3.8 5.4 7.3 9.5 11.9 14.6

Indoor Air Flow (CFM) 900


Leaving Air - DB (°F) 112.2 122.5 127.1 129.7 131.4 132.6 133.5 134.2 134.8 135.3

Leaving Air - WB (°F) 72.9 75.5 76.7 77.3 77.7 78.0 78.2 78.3 78.5 78.6


Fluid Delta T (°F) 42.6 26.5 19.2 15.1 12.4 10.6 9.2 8.1 7.3 6.6


Indoor Air Flow (CFM) 1,000


Leaving Air - DB (°F) 109.6 119.9 124.5 127.2 129.0 130.2 131.2 131.9 132.5 132.9

Leaving Air - WB (°F) 72.2 74.9 76.0 76.7 77.1 77.4 77.6 77.8 77.9 78.0


Fluid Delta T (°F) 44.4 28.0 20.4 16.1 13.3 11.3 9.8 8.7 7.8 7.1




Leaving Air - DB (°F) 107.3 117.4 122.2 124.9 126.7 128.0 129.0 129.7 130.3 130.8

Leaving Air - WB (°F) 71.6 74.2 75.4 76.1 76.6 76.9 77.1 77.3 77.4 77.5


Fluid Delta T (°F) 45.9 29.3 21.5 17.0 14.0 12.0 10.4 9.2 8.3 7.5




Leaving Air - DB (°F) 105.2 115.3 120.0 122.8 124.6 125.9 126.9 127.7 128.3 128.8

Leaving Air - WB (°F) 71.0 73.7 74.9 75.6 76.0 76.4 76.6 76.8 76.9 77.1


Fluid Delta T (°F) 47.3 30.5 22.5 17.8 14.7 12.6 11.0 9.7 8.7 7.9




Leaving Air - DB (°F) 101.7 111.5 116.2 119.0 120.9 122.3 123.3 124.1 124.7 125.2

Leaving Air - WB (°F) 70.0 72.7 73.9 74.7 75.1 75.5 75.7 75.9 76.1 76.2


Fluid Delta T (°F) 49.6 32.6 24.2 19.3 16.0 13.7 12.0 10.6 9.6 8.7




Leaving Air - DB (°F) 100.2 109.8 114.6 117.4 119.3 120.7 121.7 122.5 123.2 123.7

Leaving Air - WB (°F) 69.6 72.3 73.5 74.2 74.7 75.1 75.3 75.5 75.7 75.8


Fluid Delta T (°F) 50.7 33.5 25.0 20.0 16.6 14.2 12.5 11.1 10.0 9.1




Leaving Air - DB (°F) 98.8 108.3 113.1 115.9 117.8 119.2 120.2 121.0 121.7 122.2

Leaving Air - WB (°F) 69.2 71.8 73.1 73.8 74.3 74.7 74.9 75.2 75.3 75.5


Fluid Delta T (°F) 51.6 34.4 25.8 20.6 17.2 14.7 12.9 11.5 10.3 9.4




Leaving Air - DB (°F) 97.6 107.0 111.7 114.5 116.4 117.8 118.9 119.7 120.3 120.9

Leaving Air - WB (°F) 68.8 71.5 72.7 73.5 74.0 74.3 74.6 74.8 75.0 75.1


Fluid Delta T (°F) 52.5 35.2 26.5 21.3 17.7 15.2 13.3 11.9 10.7 9.7




Leaving Air - DB (°F) 96.5 105.7 110.4 113.2 115.1 116.5 117.6 118.4 119.1 119.6

Leaving Air - WB (°F) 68.5 71.1 72.4 73.1 73.6 74.0 74.3 74.5 74.7 74.8


Fluid Delta T (°F) 53.3 36.0 27.2 21.8 18.3 15.7 13.8 12.2 11.0 10.0




Leaving Air - DB (°F) 95.4 104.5 109.2 112.0 113.9 115.3 116.4 117.2 117.9 118.4

Leaving Air - WB (°F) 68.2 70.8 72.1 72.8 73.3 73.7 74.0 74.2 74.4 74.5


Fluid Delta T (°F) 54.1 36.7 27.8 22.4 18.8 16.1 14.2 12.6 11.4 10.4




Leaving Air - DB (°F) 94.5 103.4 108.0 110.9 112.8 114.2 115.2 116.1 116.8 117.3

Leaving Air - WB (°F) 67.9 70.5 71.8 72.5 73.0 73.4 73.7 73.9 74.1 74.2


Fluid Delta T (°F) 54.8 37.4 28.4 22.9 19.2 16.6 14.5 13.0 11.7 10.6



airflow,cfM*-Heatpumps&airconditionersAIR fLOW CfM

bASICMODEL

ESP (WET COIL)

0.10 0.15 0.20 0.30 0.40 0.50

24 920 890 860 800 ––– –––

30 1150 1100 1075 1000 ––– –––

36 1380 1340 1290 1200 ––– –––

40 1380 1340 1290 1200 ––– –––

49 1840 1780 1740 1600 1490 1400

60 2250 2190 2100 2000 1900 1790

CFM = Cubic Feet per Minute, Indoor Air Flow ESP = External Static Pressure in Inches of Water All ratings are at 230v. for 208-230v. units and 460v. for 460v. units. Operation of units at a voltage different from the rating point will affect performance and air flow.

electricHeattable-Heatpumps&airconditioners

OUTPUT

HEATER kW5 7.5 10 15



ShippingWeight(pounds)bASIC MODEL 24 30 36 40 49 60

VOLTAGE - 230 450 540 550 565 935 960

VOLTAGE - 460 475 565 575 590 960 985

airfilterSizes(inches)-Heatpumps&airconditionersMODEL RETURN AIR fILTER* fRESH AIR fILTER EXHAUST fILTER**

24/30/36/40 2 - 16” x 16” x 1” 11” x 22” x 1” 12” x 20” x 1”

49/60 2 - 20” x 15” x 1” 11” x 22” x 1” 12” x 20” x 1”

*Two (2) return air filters are required for each unit. **With GreenWheel® ventilation system. Optional 2” Filter

Scholar Combo EDM 2/2011 rev. 3 Appendix D -1 HVAC Equipment

GeoScholarQVHeatpumpsSummaryperformance

appenDIXD-ratInGS/Data-GeoScHolarQV

MODEL VWCA24HP VWCA30HP VWCA36HP VWCA40HP VWCA48HP VWCA60HP

ARI Capacity, Cooling (Btu/Hr) 23,000 27,000 34,000 40,000 46,000 54,000

ARI Efficiency, Cooling (EER) 13.40 13.00 13.40 13.80 12.80 12.80

ARI Capacity, Heating (Btu/Hr) 16,600 18,400 27,000 30,600 36,000 44,000

ARI Efficiency, Heating (COP) 3.00 3.00 3.00 3.00 3.00 3.00

ARI Indoor Air Flow (CFM) 900 975 1200 1200 1450 1550

ARI Outdoor Water Flow (GPM) 6.0 7.5 9.0 10.5 12.0 15.0

based upon ISO Std. 13256-1-98.

Cooling: 80°f Db/67°f Wb Indoor Air, 77°f Entering Water Temperature

Heating: 70°f Db Entering Air, 55°f Entering Water

GeoScholarQVairflow,cfM*-Heatpumps

MODEL VWCA24HP VWCA30HP VWCA36HP VWCA40HP VWCA48HP VWCA60HP

0.10 920 1150 1380 1380 1580 1580

0.15 890 1100 1340 1340 1515 1515

0.20 860 1075 1290 1290 1450 1450

0.30 800 1000 1200 1200 1310 1310

Manual Damper with fresh Air Intake blower (“N”) or Motorized Damper with fresh Air Intake blower (“b”) fresh Air ventilation SystemELECT. HEAT 00 = NONE 05 = 5 kW 7.5 = 7.5 kW 10 = 10 kW 15 = 15 kW

bASIC MODELVOLTAGE

Hz-PH


MCA MfS MCA MfS MCA MfS MCA MfS MCA MfS MCA MfS MCA MfS MCA MfS MCA MfS

VWCA24HPA 230-208/60/1 19.3 30 45.3 50 n/a n/a 38.8 40 19.6 20 45.3 50 26.0 30 n/a n/a n/a n/a




VWCA48HPA 230-208/60/1 30.0 45 30.0 45 26.0 30 30.0 45 39.1 40 30.0 45 52.1 60 n/a n/a n/a n/a


VWCA24HPC 230-208/60/3 12.1 15 27.1 30 n/a n/a 34.6 35 n/a n/a 42.3 45 n/a n/a 34.6 35 22.5 25





VWCA60HPC 230-208/60/3 25.1 40 40.1 45 n/a n/a 47.6 50 n/a n/a 25.1 40 30.1 35 25.1 40 45.1 50

VWCA24HPD 460/60/3 6.6 15 14.1 15 n/a n/a 17.9 20 n/a n/a 21.6 25 n/a n/a 29.1 30 n/a n/a






NA = Not Applicable MCA = Minimum Circuit Ampacity (Wire Size Amps) MFS = Maximum Fuse or HACR Circuit.MCA & MFS calculated at 240v. for “A” & “C” models and 480v. for “D” models. 460v. units have a stepped down transformer for 230v. motors. For 1Ø (HPA) units with 15 kW of electric heat, the maximum allowable heat to operate simultaneously with the compressor is 10 kW..

GeoScholarQVHeatpumpswith1-StagecompressorSummaryratingsManual(“n”)orMotorized(“B”)freshairVentilationSystem


PowerVent (“J”) fresh Air Ventilation SystemELECT. HEAT 00 = NONE 05 = 5 kW 7.5 = 7.5 kW 10 = 10 kW 15 = 15 kW

bASIC MODELVOLTAGE

Hz-PH






















GeoScholarQVHeatpumpswith1-StagecompressorSummaryratingspowerVent(“J”)freshairVentilationSystem

GreenWheel® ERV (Energy Recovery Ventilator) (“H”)ELECT. HEAT 00 = NONE 05 = 5 kW 7.5 = 7.5 kW 10 = 10 kW 15 = 15 kW

bASIC MODELVOLTAGE

Hz-PH






















GeoScholarQVHeatpumpswith1-StagecompressorSummaryratingsGreenWheel®erV(“H”)freshairVentilationSystem


Manual Damper with fresh Air Intake blower (“N”) or Motorized Damper with fresh Air Intake blower (“b”) fresh Air ventilation SystemELECT. HEAT 00 = NONE 05 = 5 kW 7.5 = 7.5 kW 10 = 10 kW 15 = 15 kW

bASIC MODELVOLTAGE

Hz-PH



VWCSA36HPA 230-208/60/1 23.3 35 49.3 50 n/a n/a 42.8 45 19.6 20 49.3 50 26.0 30 n/a n/a n/a n/a


VWCSA48HPA 230-208/60/1 31.6 50 31.6 50 26.0 30 31.6 50 39.1 40 31.6 50 52.1 60 n/a n/a n/a n/a


VWCSA36HPC 230-208/60/3 16.4 25 31.4 35 n/a n/a 38.9 40 n/a n/a 46.5 50 n/a n/a 38.9 40 22.5 25



VWCSA60HPC 230-208/60/3 27.2 40 42.2 45 n/a n/a 49.7 50 n/a n/a 27.2 40 30.1 35 27.2 40 45.1 50

VWCSA36HPD 460/60/3 7.2 15 14.7 15 n/a n/a 18.5 20 n/a n/a 22.2 25 n/a n/a 29.7 30 n/a n/a





GeoScholarQVHeatpumpswith2-StagecompressorSummaryratingsManual(“n”)orMotorized(“B”)freshairVentilationSystem

PowerVent (“J”) fresh Air Ventilation SystemELECT. HEAT 00 = NONE 05 = 5 kW 7.5 = 7.5 kW 10 = 10 kW 15 = 15 kW

bASIC MODELVOLTAGE

Hz-PH
















GeoScholarQVHeatpumpswith2-StagecompressorSummaryratingspowerVent(“J”)freshairVentilationSystem


GreenWheel® ERV (Energy Recovery Ventilator) (“H”)ELECT. HEAT 00 = NONE 05 = 5 kW 7.5 = 7.5 kW 10 = 10 kW 15 = 15 kW

bASIC MODELVOLTAGE

Hz-PH
















GeoScholarQVHeatpumpswith2-StagecompressorSummaryratingsGreenWheel®erV(“H”)freshairVentilationSystem

GeoScholarQVHeatpumpswith1-Stagecompessor electricalcharacteristics-compressor,fans&BlowerMotors

bASIC

MODEL

COMPRESSOR INDOOR fAN MOTOR GREENWHEEL® ERV

VOLTS Hz/Ph RLA LRA MCC VOLTS Hz/Ph RPM fLA HP VOLTS Hz/Ph RLA

VWCA24HPA 208/230 60/1 13.4 58.3 21.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA30HPA 208/230 60/1 12.8 64.0 20.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA36HPA 208/230 60/1 14.1 77.0 22.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA40HPA 208/230 60/1 17.9 112.0 28.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA48HPA 208/230 60/1 19.8 109.0 31.0 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCA60HPA 208/230 60/1 26.4 134.0 41.2 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCA24HPC 208/230 60/3 7.7 55.0 12.1 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA30HPC 208/230 60/3 8.3 61.0 13.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA36HPC 208/230 60/3 9.0 71.0 14.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA40HPC 208/230 60/3 13.2 88.0 20.6 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCA48HPC 208/230 60/3 13.1 83.1 20.5 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCA60HPC 208/230 60/3 15.9 111.0 24.9 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCA24HPD 460 60/3 4.0 22.4 6.2 460 60/1 825 1.1 1/4 208/230 60/1 2.2

VWCA30HPD 460 60/3 5.1 28.0 8.0 460 60/1 825 1.1 1/4 208/230 60/1 2.2

VWCA36HPD 460 60/3 5.6 38.0 8.8 460 60/1 825 1.1 1/4 208/230 60/1 2.2

VWCA40HPD 460 60/3 6.0 44.0 9.3 460 60/1 825 1.1 1/4 208/230 60/1 2.2

VWCA48HPD 460 60/3 6.1 41.0 9.5 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCA60HPD 460 60/3 7.7 52.0 12.1 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

GeoScholarQVHeatpumps electricalcharacteristics-VentilationSystemMotors

CONfIGURATION OPTION

EXHAUST AIR MOTOR (EXM) OUTDOOR AIR MOTOR (OAM) WHEEL DRIVE MOTOR

VOLTS Hz/PH fLA HP VOLTS Hz/PH fLA HP VOLTS Hz/PH fLA HP

Motorized Damper b n/a n/a n/a n/a 230 60/1 1.0 0.17 n/a n/a n/a n/a

Manual Damper (std) N n/a n/a n/a n/a 230 60/1 1.0 0.17 n/a n/a n/a n/a


J 230 60/1 1.0 0.17 230 60/1 1.0 0.17 n/a n/a n/a n/a

GreenWheel® ERV H 230 60/1 1.0 0.17 230 60/1 1.0 0.17 230 60/1 0.2 0.01

n/a = Not Applicable FLA = Full Load Amps Watts = Power Consumption Hz/Ph = Hertz (Frequency)/Number of Phases


GeoScholarQVHeatpumpswith2-Stagecompessor electricalcharacteristics-compressor,fans&BlowerMotors

bASIC

MODEL

COMPRESSOR INDOOR fAN MOTOR GREENWHEEL® ERV

VOLTS Hz/Ph RLA LRA MCC VOLTS Hz/Ph RPM fLA HP VOLTS Hz/Ph RLA

VWCSA36HPA 208/230 60/1 16.6 82.0 26.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCSA40HPA 208/230 60/1 16.6 96.0 26.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCSA48HPA 208/230 60/1 21.1 96.0 33.0 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCSA60HPA 208/230 60/1 25.6 118.0 40.0 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCSA36HPC 208/230 60/3 11.1 58.0 17.4 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCSA40HPC 208/230 60/3 13.4 88.0 21.0 208/230 60/1 825 1.5 1/4 208/230 60/1 2.2

VWCSA48HPC 208/230 60/3 13.4 88.0 21.0 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCSA60HPC 208/230 60/3 17.6 123.0 27.5 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCSA36HPD 460 60/3 4.5 29.0 7.0 460 60/1 825 1.1 1/4 208/230 60/1 2.2

VWCSA40HPD 460 60/3 6.1 44.0 9.5 460 60/1 825 1.1 1/4 208/230 60/1 2.2

VWCSA48HPD 460 60/3 6.4 41.0 10.0 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

VWCSA60HPD 460 60/3 9.6 45.0 15.0 208/230 60/1 1075 4.2 3/4 208/230 60/1 2.2

GeoScholarQVHeatpumpswith1-Stagecompessor Unitloadamps

baSICmOdEl

VOLTAGEPH-Hz


LOAD Of RESISTIVE HEATING ELEMENTS ONLy (AMPS)


VENT. CONfIGURATION VENT. CONfIGURATION b, N VENT. CONfIGURATION J VENT. CONfIGURATION Hb, N J H 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW

VWCA24HPA 208-230/1/60 15.9 16.9 17.1 20.8 31.3 41.7 n/a 36.7 47.2 57.6 n/a 37.7 48.2 58.6 n/a 37.9 48.4 58.8 n/a






VWCA24HPC 208-230/3/60 10.2 11.2 11.4 12.0 18.0 24.1 36.1 22.2 28.2 34.3 46.3 23.2 29.2 35.3 47.3 23.4 29.4 35.5 47.5

VWCA30HPC 208-230/3/60 10.8 11.8 12.0 12.0 18.0 24.1 36.1 22.8 28.8 34.9 46.9 23.8 29.8 35.9 47.9 24.0 30.0 36.1 48.1

VWCA36HPC 208-230/3/60 11.5 12.5 12.7 12.0 18.0 24.1 36.1 23.5 29.5 35.6 47.6 24.5 30.5 36.6 48.6 24.7 30.7 36.8 48.8

VWCA40HPC 208-230/3/60 15.7 16.7 16.9 12.0 18.0 24.1 36.1 27.7 33.7 39.8 51.8 28.7 34.7 40.8 52.8 28.9 34.9 41.0 53.0

VWCA49HPC 208-230/3/60 18.3 19.3 19.5 12.0 18.0 24.1 36.1 30.3 36.3 42.4 54.4 31.3 37.3 43.4 55.4 31.5 37.5 43.6 55.6

VWCA60HPC 208-230/3/60 21.1 22.1 22.3 12.0 18.0 24.1 36.1 33.1 39.1 45.2 57.2 34.1 40.1 46.2 58.2 34.3 40.3 46.4 58.4

VWCA24HPD 460/3/60 5.6 6.1 6.2 6.0 9.0 12.0 18.0 11.6 14.6 17.6 23.6 12.1 15.1 18.1 24.1 12.2 15.2 18.2 24.2

VWCA30HPD 460/3/60 6.7 7.2 7.3 6.0 9.0 12.0 18.0 12.7 15.7 18.7 24.7 13.2 16.2 19.2 25.2 13.3 16.3 19.3 25.3

VWCA36HPD 460/3/60 7.2 7.7 7.8 6.0 9.0 12.0 18.0 13.2 16.2 19.2 25.2 13.7 16.7 19.7 25.7 13.8 16.8 19.8 25.8

VWCA40HPD 460/3/60 7.6 8.1 8.2 6.0 9.0 12.0 18.0 13.6 16.6 19.6 25.6 14.1 17.1 20.1 26.1 14.2 17.2 20.2 26.2

VWCA49HPD 460/3/60 8.7 9.2 9.3 6.0 9.0 12.0 18.0 14.7 17.7 20.7 26.7 15.2 18.2 21.2 27.2 15.3 18.3 21.3 27.3

VWCA60HPD 460/3/60 10.3 10.8 10.9 6.0 9.0 12.0 18.0 16.3 19.3 22.3 28.3 16.8 19.8 22.8 28.8 16.9 19.9 22.9 28.9

Heating kW shown at 240v. for HPA and HPC models and 480v. for HPD models. Three phase equipment (HPC & HPD models) have single phase loads.Values shown are maximum phase loads. Loads may not be equally balanced on each phase. Total heating amps includes motor loads.HPD models (460v.) have a step down transformer for 230 v. motors.

GeoScholarQVHeatpumpswith2-Stagecompessor Unitloadamps

baSICmOdEl

VOLTAGEPH-Hz


LOAD Of RESISTIVE HEATING ELEMENTS ONLy (AMPS)


VENT. CONfIGURATION VENT. CONfIGURATION b, N VENT. CONfIGURATION J VENT. CONfIGURATION Hb, N J H 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW 5 kW 7.5 kW 10 kW 15 kW

VWCSA36HPA 208-230/1/60 19.1 20.1 20.3 20.8 31.3 41.7 n/a 39.9 50.4 60.8 n/a 40.9 51.4 61.8 n/a 41.1 51.6 62.0 n/a




VWCSA36HPC 208-230/3/60 13.6 14.6 14.8 12.0 18.0 24.1 36.1 25.6 31.6 37.7 49.7 26.6 32.6 38.7 50.7 26.8 32.8 38.9 50.9

VWCSA40HPC 208-230/3/60 15.9 16.9 17.1 12.0 18.0 24.1 36.1 27.9 33.9 40.0 52.0 28.9 34.9 41.0 53.0 29.1 35.1 41.2 53.2

VWCSA49HPC 208-230/3/60 18.6 19.6 19.8 12.0 18.0 24.1 36.1 30.6 36.6 42.7 54.7 31.6 37.6 43.7 55.7 31.8 37.8 43.9 55.9

VWCSA60HPC 208-230/3/60 22.8 23.8 24.0 12.0 18.0 24.1 36.1 34.8 40.8 46.9 58.9 35.8 41.8 47.9 59.9 36.0 42.0 48.1 60.1

VWCSA36HPD 460/3/60 6.1 6.6 6.7 6.0 9.0 12.0 18.0 12.1 15.1 18.1 24.1 12.6 15.6 18.6 24.6 12.7 15.7 18.7 24.7

VWCSA40HPD 460/3/60 7.7 8.2 8.3 6.0 9.0 12.0 18.0 13.7 16.7 19.7 25.7 14.2 17.2 20.2 26.2 14.3 17.3 20.3 26.3

VWCSA49HPD 460/3/60 9.0 9.5 9.6 6.0 9.0 12.0 18.0 15.0 18.0 21.0 27.0 15.5 18.5 21.5 27.5 15.6 18.6 21.6 27.6

VWCSA60HPD 460/3/60 12.2 12.7 12.8 6.0 9.0 12.0 18.0 18.2 21.2 24.2 30.2 18.7 21.7 24.7 30.7 18.8 21.8 24.8 30.8

Heating kW shown at 240v. for HPA and HPC models and 480v. for HPD models. Three phase equipment (HPC & HPD models) have single phase loads.Values shown are maximum phase loads. Loads may not be equally balanced on each phase. Total heating amps includes motor loads.HPD models (460v.) have a step down transformer for 230 v. motors.


GeoScholarQVHeatpumpselectricHeat

MODEL RETURN AIR fILTER* fRESH AIR fILTER EXHAUST fILTER**

VWCA 24/30/60 16” x 16” x 1” (1) 11” x 22” x 1” 12” x 20” x 1”

VWCA 40/48/60 16” x 16” x 1” (1) 11” x 22” x 1” 12” x 20” x 1”

*Two (2) return air filters are required for each unit. Optional 4” pleated filter. **With GreenWheel® ventilation system.(1) Optional 2” Filter

OUTPUT

HEATER kW5 7.5 10 15



bASIC MODEL 24 30 36 40 48 60

VOLTAGE - 230 350 350 360 540 565 590

VOLTAGE - 460 375 375 385 565 590 615

GeoScholarQVHeatpumpsairfilterSizes(inches)

GeoScholarQVHeatpumpsShippingWeight(pounds)

Scholar Combo EDM 2/2011 rev. 3 Appendix E -1 HVAC Equipment

appenDIXe-ScHolarIIISUBMIttalData

REPRESENTATIVE:

GENERAL NOTES:

ELECTRICAL AND CONTROL STUB-INS FORMARVAIR® SCHOLAR III™

HEAT PUMPS AND AIR CONDITIONERS

CL

CL

Finished Floor Line

X2

Y1

X1

Y2

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ In

MASONRY OPENING FORMARVAIR® SCHOLAR III™


JOB:

SHEET NO. OF CALCULATED BY: DATE: CHECKED BY: DATE: SCALE: Not to scale/do not scale MODEL NUMBER:

WT

Y1

Y2

Y3

X1

X2

Stub-InsElectrical& Control

CondensateDrain

CL

LC

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ In

Y3 = ________ In

Centerline of Scholar III Unit

Scholar Combo EDM 2/2011 rev. 3 Appendix F -1 HVAC Equipment

appenDIXf-ScHolarQVSUBMIttalData

REPRESENTATIVE:

GENERAL NOTES:

Y2

Y1


CondensateDrain

CL

LC

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ InX1

WT

X2

TM

ELECTRICAL AND CONTROL STUB-INS FORMARVAIR® SCHOLAR QV™ 24-40


CL

CL

Finished Floor Line

X2

Y1

X1

Y2

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ In

MASONRY OPENING FORMARVAIR® SCHOLAR QV™ 24-40


JOB:


Centerline of Scholar QV Unit

Scholar Combo EDM 2/2011 rev. 3 Appendix F -2 HVAC Equipment

REPRESENTATIVE:

GENERAL NOTES:

ELECTRICAL AND CONTROL STUB-INS FORMARVAIR® SCHOLAR QV™ 49-60


CL

CL

Finished Floor Line

X2

Y1

X1

Y2

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ In

MASONRY OPENING FORMARVAIR® SCHOLAR QV™ 49-60


JOB:


Y2Y1

X1

X2


CondensateDrain

CL

LC

WT = ________ In

X1 = ________ In

X2 = ________ In

X3 = ________ In

Y1 = ________ In

Y2 = ________ In

X3

WT

TMCenterline of Scholar QV Unit

Scholar Combo EDM 2/2011 rev. 3 Appendix G-1 HVAC Equipment

appenDIXG-GeoScHolarQVSUBMIttalData

REPRESENTATIVE:

GENERAL NOTES:

ELECTRICAL AND CONTROL STUB-INS FORMARVAIR® GEOSCHOLAR QV™


CL

CL

Finished Floor Line

X2

Y1

X1

Y2

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ In

MASONRY OPENING FORMARVAIR® GEOSCHOLAR QV™


JOB:


WT

Y1

Y2

Y3

X1

X2


CondensateDrain

CL

LC

WT = ________ In

X1 = ________ In

X2 = ________ In

Y1 = ________ In

Y2 = ________ In

Y3 = ________ In

Centerline of Scholar III Unit

Scholar Combo EDM 2/2011 rev. 3 Appendix H -1 HVAC Equipment

appendixH–engineeringSpecificationGuides

SCHOlar III HEaT pumpS MoDelSVaIa24-30-36-40-42-48-60(1-StaGecoMpreSSor)

anDVaISa36-40-48-60(2-StaGecoMpreSSor)

ENgINEErINg SpECIfICaTION guIdE fOr aIr TO aIr SElf CONTaINEd flOOr STaNdINg HEaT pumpS

gENEral 1.0 Furnish and install a Scholar III Heat Pump, Model VAI *1A**2 HP *3 – ***4 *5 self-

contained, floor standing, through-the-wall, air-to-air heat pump manufacturedby Marvair®. (See model ID in the product Data Sheet for identification ofoptions).The heat pump shall be completely factory assembled and tested, and shall include compressor, indoor and outdoor coils, fans and motors as required, prewired controls, interconnecting refrigerant tubing, wiring, breaker disconnects, built-in fresh air ventilation feature, and other necessary components mounted in a corrosion resistant, double walled cabinet. The system shall be shipped from the factorywithafulloperatingR-410Arefrigerantandoilcharge.Allfieldwiringshallbein accordance with the National Electric Code and local codes.

The heat pump shall be capable of accepting factory supplied optional plenums providing freeblow conditioned air into the space, or ducted distribution. Further, heat pump can be equipped with factory supplied optional electric resistance heat or hot water heat.

Double hinged front doors shall provide access to all primary components and controls including the condenser motor, the evaporator motor, the compressor and the air mover(s)fortheoutsideairventilationsystem.1S=2-stage compressor

2Nominal cooling capacity in BTUH. Example: 36 =36,000 BTUH3PowerSupplydesignator.A=208/230v.1ø;C=208/230v.3ø;D=460v.3ø4 Electric strip heat in kW. Example: 100 = 10 kilowatts of electric heat. 090 = 9 kw of heat.5VentilationConfiguration.SeeSection4.

apprOValS The complete package shall be ETL Listed and tested to UL Standard 1995, 2nd Edition 2.0 andCAN/CSA-C22.2No.236-952ndEditionforsafety.TheunitshallbecertifiedtothecurrentversionoftheAirConditioningHeatingandRefrigerationInstitute(AHRI)Standard390.ThemanufactureroftheheatpumpshallbeISO90012000certified.

CErTIfIEd pErfOrmaNCE COOLING3.0 . When rated at ARI Standard 390 with no outside air, the total net cooling

capacity of the heat pump shall be BTUH or greater, and sensible capacity shall be BTUH or greater at conditions of: CFM evaporator entering air of 80°F dry bulb, 67°F wet bulb and condenser entering air temperature of 95°F dry bulb. Models VAIA with single stage compressors shall have an EER of or higher, at this condition. Models VAISA with two stage compressorsshallhaveanIntegratedPartLoadValue(IPLV)of_________orhigher,at this condition.


HEATING. When rated at AHRI standard 390 with no outside air, 70°F dry bulb air 3.1 entering the indoor coil and 47°F dry bulb outdoor ambient, the heat pump shall have a minimum heating capacity of BTUH and a minimum COP of . When rated at AHRI Standard 390 with no outside air, 70°F dry bulb air entering the indoor coil and 17°F dry bulb outdoor ambient, the heat pump shall have a minimum heating capacity of BTUH and a minimum COP of .

SUPPLEMENTAL HEAT (One must be selected)

3.1.2 NO HEAT. The Scholar III heat pump shall have no electric resistance or hot water heat. Or

3.1.2 ELECTRIC HEAT. The heat pump shall have a factory supplied electric resistance heater,designedspecificallyforapplicationtotheScholarIIIheatpump.TheScholar III heat pump shall have electric resistance heat of kW (5, 7.5, 10, or 15 kW, select one) to satisfy heat loss at winter design conditions. The heater elements shall be constructed of nichrome wire and protected by a bimetal thermostat and a thermal cut-out. Or

3.1.2 HOT WATER HEAT. The heat pump shall have a complete factory assembled hotwaterheatingcoilandplenumassembly,equippedwithafreezeprotectionthermostat (24 volt). The heating coil shall be manufactured of seamlesscopper tubing with aluminum fins mechanically bonded to the tubing. Theplenumshallbefullyinsulatedwithheatreflecting,foilfacedthermal/acousticalinsulation. Supplemental heat of BTUH of hot water entering at °Fandflowingatarateof GPM with inlet air at CFM and °F entering temperature shall be provided to satisfy heat loss at winter design conditions.

frESH aIr VENTIlaTION CONfIguraTIONS (onemustbeselected)4.0 FIXEDPOSITIONMANUALDAMPER,VentilationConfiguration“N”.Freshairventilation

with pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)byamanualdamper.Aftertheinstallationofthe Scholar III heat pump in the classroom, the damper shall be adjusted for required rateofventilation.Configurationshallincludeafilterfortheincomingventilationair,a ventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 TWO POSITION MOTORIZED DAMPER, Ventilation Configuration “B”. Fresh airventilation with pressure relief shall be provided at the rate of CFM (0 to450cfmbutnot toexceed40%of theratedairflow)bya factory installedmotorized,twopositiondamper.AftertheinstallationoftheScholarIIIheatpumpin the classroom, the damper shall be adjusted for required rate of ventilation. The factoryinstalledmotorizeddampershalloperateon (24,120,or240V - select one)toregulatefreshairventilationinresponsetoanenergymanagementsystemorothertypeofcontrol,externaltotheScholarIIIheatpump.Configurationshallincludeafilterfortheincomingventilationair,aventilationintakeblowermotorand a speed controller for the ventilation intake blower motor. Or

4.0 POWERVENTWITHTWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“J”. Fresh air ventilation with pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)fortheintakeairand CFM(0to450cfm)fortheexhaustairbyafactoryinstalledmotorized,twopositiondamper. After the installation of the Scholar III heat pump in the classroom, the damper


shall be adjusted for required rate of ventilation. The factory installedmotorizeddamper shall operate on (24,120,or240V-select one)toregulatefresh air ventilation in response to an energy management system or other type of control,externaltotheScholarIIIheatpump.Configurationshallincludeafilterforthe incoming ventilation air, a ventilation intake air blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor. (anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobeindependentlycontrolledandpositivepressurizationoftheclassroom.)Or

4.0 GreenWheel® Energy Recovery Ventilator, Ventilation Configuration “H”. The heatpump shall have a GreenWheel® energy recovery ventilator that simultaneously exhausts indoor air at the rate of CFM for the exhaust air and brings in CFMontheintakeair,withamaximumof450CFMandanefficiencyofupto75%.After the installation of the Scholar III heat pump in the classroom, the damper shall beadjustedfortherequiredrateofventilation.Configurationshallincludeafilterfortheincomingventilationair,afilterfortheexhaustventilationair,aventilationintakeair blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor.(anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobeindependentlycontrolledandpositivepressurizationoftheclassroom.)

4.1 Wheel Media: The enthalpy wheel shall be constructed of corrugated synthetic fibrousmedia,withadesiccantintimatelyboundanduniformlyandpermanentlydispersed throughout the matrix structure of the media. Rotors with desiccants coated, bonded, or synthesized onto the media are not acceptable due todelamination or erosion of the desiccant material. Media shall be synthetic to provide corrosion resistance and resistance against attack from laboratory chemicals present in pharmaceutical, hospital, etc. environments as well as attack from external outdoor air conditions. Coated aluminum is not acceptable. Face flatnessofthewheelshallbemaximized(±0.032in)inordertominimizewearoninnersealsurfacesandtominimizecrossleakage.Rotorshallbeconstructedofalternatinglayersofflatandcorrugatedmedia.Wheellayersshouldbeuniforminconstructionforminguniformaperturesizesforairflow.Wheelconstructionshallbeflutedorformedhoneycombgeometrysoastoeliminateinternalwheelbypass. Wheel layers that canbe separatedor spreadapart by air flowareunacceptable due to the possibility of channeling and performance degradation. The media shall be in accordance with UL guidelines.

4.2 Desiccant Material: The desiccant material shall be a 4A molecular sieve to minimizecrosscontamination.

4.3 Wheel Media Support System: The wheel frames shall consist of evenly spaced galvanizedsteelspokes,astainlesssteelouterbandandrigidcenterhub.Thewheel construction should allow for post fabrication wheel alignment.

4.4 Wheel Seals: The wheel seals shall be a contact brush seal on both the periphery of the wheel and the face.

4.5 WheelCassette:Cassettesshallbefabricatedof18gaugereinforcedgalvanizedsteel. Bearings shall be inboard, zero maintenance, permanently sealed ball


bearings. Drive systems shall consist of fractional horsepower A.C. drive motors with polyurethane drive belts.

4.6 Certification: The energy recovery wheel and the cassette shall be tested and certifiedaccordingtoARIStandard1060.

4.0 GreenCube™ Energy Recovery Ventilator. Configuration “Q”. The heat pump shallhave a GreenCube energy recovery ventilator that transfers both sensible and latent energiesbetweenoutgoingandincomingairstreamsinacrossflowarrangement.

4.1 Dessicant Material: The enthalpy plate exchanger media shall be impregnated with a RC134 polymeric desiccant. The hydroscopic polymer shall exchange water by direct vapor transfer using molecular transport without the need of condensation. Desiccant shall be bactericide. The desiccant shall be tested by a third party laboratory and the document showing the tests results shall be supplied to the air handling unit end user upon request.

4.2 Core construction. The core shall be constructed of alternate layers of corrugated aluminum material and polymeric desiccant impregnated media. The enthalpy plate exchanger shall have a unique rectangular flute design to provide verylow pressure drop values. The enthalpy plate exchanger shall operate at temperatures between -40°F and 113°F (40°and 45°C). The enthalpy plate exchanger shall withstand, without more than 10% increase of pressure drop pressure differential of at least 2”. It shall withstand pressure differential of 10” without permanent deformation or decrease of performance. The enthalpy plate exchanger shall withstand, without more than 10% increase of pressure drop, a pressure differential of at least 2”. It shall withstand pressure differential of 10” without permanent deformation or decrease of performance.

4.3 Filters:AsspecifiedinASHRAE52.2-2007,MERV6typefiltersshallbeusedonboth faces of the enthalpy core.

4.4 Flame spread: The enthalpy plate exchanger shall meet NFPA90A and 90B requirements forflamespread,not toexceed25,andsmokegeneration,notto exceed 50, through an ongoing testing and verification program using ULStandard 723. Tests according to UL900 are not acceptable.

4.5 Quality assurance: The enthalpy plate exchanger shall be a UL recognizedcomponent and shall comply with the requirement of UL723. The manufacturer of the enthalpy plate exchanger shall be a participant in the AHRI Standard 1060-2005certificationprogram.

4.6 PerformanceCertifications: The enthalpy plate exchanger shall be listed intheAHRICertifiedProductDirectoryandshallbeartheAHRICertifiedProductSeal. Sensible, latent and total effectiveness along with pressure drop, EATR and OACF rating shall be clearly documented with performance tests conducted in accordance with ASHRAE Standard 84-91 and ARI Standard 1060-2005.

HOT gaS rEHEaT fOr dEHumIdIfICaTION (Optional,selectifdesired)note:WhenoutsideventilationairisbroughtintotheclassroombytheScholarunit,foroptimumperformancehotgasreheatshouldbeusedinconjunctionwiththeGreenWheel® erVorGreencube™.Whenusedwithamotorizeddamper,hotgasreheatalonemay notmaintain satisfactory control of the humidity in the classroom over alloutdoorconditions.HotGasreheatshouldnotbeusedwithScholarunitswithamanualdamper.


HOT GAS REHEAT DEHUMIDIFICATION. The Scholar III heat pump shall have a full 5.0 face hot gas reheat coil to allow dehumidification through continued coolingwithreheated discharge air to avoid over cooling the classroom. The hot gas reheat coil shall be sized and configured so that 100%of the supply air passes through thereheat coil. The hot gas dehumidification option can be usedwith electric or hotwaterheat.Thehotgasreheat(HGR)coilshallbeconstructedofaluminumplatefinmechanically bonded to seamless copper tubes. The operation of the HGR shall be controlledbyathree-wayheatreclaimvalve.TheHGRcoilshallbesizedtoprovidea heating capacity approximately equal to the sensible cooling capacity of the heat pump.

Digital Humidity Controller. The hot gas reheat function shall be controlled by a 5.1 programmable humidity controller. Controller shall be capable of setting the time ofdayfordehumidificationfunction.Controllershallhavepermanentmemoryretentionofsetpointsandbecapableoffieldcalibration.Controllershallhavefieldselectablehigh&lowdehumidificationsetpoints.Outdoortemperatureandhumidity sensor shall be included. Controller shall display temperature in either ºF or ºC.

ModulatingHotGasReheat(Optional,selectifdesired).Tomaintainaconstant5.2 discharge temperature during reheat operation, the operation Hot Gas Reheat function shall be with a modulating valve, a PC board and temperature sensor.

VENTIlaTION baCk drafT dampEr (Optional,selectifdesired)VentilationBackdraftDamper.Aflappertypebackdraftdampershallbefactory6.0 installedtopreventinfiltrationofoutsideairfromenteringtheScholarIIIunitwhen it is not operating. The damper shall open whenever the ventilation blower is operating and shall automatically close whenever the ventilation blower is off.

dESIgN fEaTurES & COmpONENTS 7.0 RETURN AIR FILTERS. The heat pump shall have two (1”standard

or 2” optional, selectone)filamentspunglassairfilters,mounted internallyandfactory supplied.

7.1 CABINET. The exterior cabinet panels of the heat pump shall be constructed of 16 gaugegalvanizedsteelwitha_____(select one: greyorbeige)polyesterfinishcoveringthefrontandsidesofthecabinetexteriorsurface.Thefinishshallbehighlyresistant to abrasion, metal marking, staining, pressure mottling and require minimal maintenance. All exterior sheet metal panels shall be of double wall construction consisting of perforated metal on the interior with a flexible resilient acousticaland thermal insulation to enhance sound absorption at high and low frequencies sandwiched between the exterior and interior sheet metal panels. The insulation shall withstand damage from mechanical abrasion and from air erosion during service. Thickness of insulation shall be 1-1/4”. The perforation pattern and the insulation shallbedesignedtooptimizethereductionofsound.Theabsorptionmechanismofthese panels shall be a combination of the perforated panels and a thick air layer backingactingtogetherasaHelmholtzResonatortoabsorbsoundinmid-rangeandlowfrequencies;and,inaddition,theexistenceofmultipleaircolumnresonancesinthe air layer absorb sound in the mid-range and high frequencies.

All outside cabinet panels shall be fastened with a tamper-resistant Torxhead™ sheet metal screws.

7.2 COMPRESSOR. (One must be selected).The compressor shall be a single stage,


fully hermetic scroll type. Or The compressor shall be a two stage, fully hermetic scroll type.

7.3 CONDENSATE REMOVAL. The condensate removal shall have two exits from the heat pump, back and bottom. The heat pump shall have a factory assembled and supplied trapping system internal to the unit, eliminating the requirement for an external trap in the condensate drain system.

7.3.1 CONDENSATE PAN FREEZE PROTECTION (optional, but recommended inareassubjectto lowoutdoorambients). The condensate pan shall have a factory installed tubular immersion type heater with built-in resistance to shock, corrosion, vibration and temperature extremes.

7.4 CONTROLS. The internal circuit shall consist of a current limiting type transformer to generate 24 VAC, switching devices to operate the compressor, indoor fan motor, outdoor airmovers, optional electrical heater(s); and optionalmotorized damper,optional GreenWheel® energy recovery ventilator, and optional hot gas reheat. The controlcircuit forthemotorizedfreshairdamperwithPowerVentandGreenWheelventilation shall incorporate a fan speed control to allow adjustment of the fresh air intake and exhaust blowers allowing adjustment of outside air up to 450 cfm (maximumof40%ofratedairflow).

7.4.1 The Scholar III heat pump shall have a factory installed microprocessor with LED lights to show operations status and provide assistance with diagnosis if troubleshootingiseverrequired.Theinternalcontrolshallbefieldprogrammablemicroprocessor based incorporating optically isolated thermostat connections as well as galvanically isolated dry contact outputs. All wiring external to the control box and directly interfaced to the control system shall be no greater than 24 VAC. The control system shall provide Defrost Control based on time and temperature. The time interval shall be adjustable from 30 to 90 minutes in 1-minute increments. The control system shall initiate a defrost cycle only if the outdoor coil temperature indicatesthepossibilityofanicedcondition(28°F).Thedefrostcontrolcircuitshallterminate the defrost cycle when the coil temperature has been elevated to a satisfactorylevel(56°F)thatassuresallicehasbeenremovedfromthecoiloratthe end of 10 minutes of defrost operation.

7.4.2 The control system shall incorporate a safety circuit to render the refrigeration system(compressorandoutdoorfanmotor)inoperativewheneverthelimitsof high pressure or loss of refrigerant switch are exceeded. This safety circuit shall not be affected by temperature extremes and shall not cause nuisance system shutdown during time of low temperature start-up (operation). Theloss of charge switch shall be bypassed for 8-1/2 minutes during start-up. The system will lockout if the loss of charge switch opens three times within one hour or if it does not reset within 8-1/2 minutes of the unit start-up. The safety circuit shall be re-settable at the wall thermostat. A “Fault” light located on the controller shall indicate that a safety lockout has occurred and which condition has caused the lockout.

7.4.3Thecontrolsystemshallprovidemeans(Anti-ShortCycleTimer) topreventthe compressor from cycling at a rate that would cause damage or undue wear to the compressor. This time interval shall be adjustable from 1 minute to 8 minuteswithouttheuseofextraequipmentorspecializedtools.

7.4.4 The control system shall perform extensive self-diagnostics to assess the operational status and indicate a fault when detected. The control system shall


have the ability to be programmed remotely or with a removable program storage device. This storage device shall not require any special intervention by the operator. The control system shall allow access to the pertinent statistical data about the history of the refrigerant system.

7.4.5 For units with electric resistance heat, the control box shall also include easily accessible wiring to allow the installer to select the operation of the electric heat. Thefieldwiringshallallowtheelectricheattooperatewhenthecompressorisoperating as second stage heat or to prevent simultaneous operation of electric heat and the compressor.(select one) In addition, the unit shall have easily accessible wiring to allow the installer to allow the electric heat to operate during the defrost cycle or to prevent the electric heat from operating during the defrost cycle.(select one) An outdoor thermostat shall be factory installed to prevent secondstageheatfromoperatingaboveaspecifiedoutdoortemperature.

7.5 INDOOR BLOWER AND MOTOR. The indoor blower motor shall be an electronically commutated type motor. The motor’s control shall be encapsulated to prevent water from reaching its electronic components. The motor shall automatically deliver constantairflowoverawiderangeofexternalstaticpressuresbychangingitstorqueand speed without external sensors. The motor shall be factory programmed to slowly ramp up the speed to eliminate the abrupt change in sound when the motor starts.

7.6 INDOOR/OUTDOOR COILS. Indoor and outdoor coils shall be constructed of lanced aluminumfinsmechanicallybondedtorifled,seamlesscoppertubes.

7.7 OUTDOOR AIR MOVER The outdoor air mover on 2, 2-1/2, 3 & 3-1/2 ton models shallbeanaxialfantypewithanasynchronousexternalrotormotor(ACmotor).The impeller shall be sickle shaped and be of a die-cast aluminum construction for low noise and high performance. The motor shall be equipped with automatic speed control with voltage variation for operation over a wide range of ambient conditions.

The outdoor air mover on 4 & 5 ton models shall have dual blowers with an electronically commutated motor.

REFRIGERATIONCIRCUIT.Therefrigerationcircuitshallcontainaliquidfilterdryer7.8 and suction and liquid access valves. The refrigeration circuit shall be protected from high pressure and loss of charge by a positive lockout device. The refrigerant metering deviceshallbeathermalexpansionvalveontheindoor(cooling)circuitandafixedorificeontheoutdoor(heating)circuit.

SINGLE POINT POWER ENTRY. 7.9 (Selectifdesired) The Scholar III heat pump shall have a single point power entry for line voltage.

teStInG. The heat pump shall be factory tested and inspected after receiving the prescribed 8.0 refrigerantchargeinfinalassembly.Aspartofthetotalqualityassuranceprocedure,such testing and inspection shall serve to ensure proper construction, including testing the sealed refrigerant system, control functions, and general operation of the heat pump.

aIr dISTrIbuTION (One must be selected)9.0 Conditioned air leaving the heat pump shall leave through a freeblow plenum.

Plenumsshallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet. Or


9.0 Conditioned air leaving the heat pump shall leave through a ducted discharge plenum. Plenumsshallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet

eXtenSIonplenUM(optional)Afactorysuppliedextensionplenumconstructedwiththesamefinishasthecabinet,10.0 to extend the height of the unit to the ceiling.

VErTICal TrIm paNElS (optional)Sheet metal trim panels, of the same color as the Scholar III heat pump’s cabinet, 11.0 shall be installed on both the left and right sides of the heat pump. The trim panels provideafinishedappearanceand cover any spacebetween the rear of theheatpump and the interior wall. Trim panels shall extend the full height of the heat pump andplenumandshallbe_____incheswide.

BaSeStanDS(optional)TheScholarIIIheatpumpshallbeinstalledontopofa____inch12.0 (4”,5”,6”or8”high, select one) high base stand. The base stand shall be of the dimensions as the base of the heat pump and shall be designed to support the heat pump. The base stand shall be the same color as the cabinet of the Scholar heat pump.

OuTdOOr lOuVEr 13.0 The outdoor louver shall be constructed of 6063-T5 alloyed aluminum extrusion with

42° blade angles with a color selected by the architect or engineer. The louvers shall be designed not to hinder the intake or egress of the condenser air and the outside ventilation air and to separate the air streams. The spacing and the design of the bladesshallminimizethepossibilityofwaterintrusion.

13.1Thefinishofthelouvershallbe:(selectoneofthefollowing)

AbakedenamelfinishthatmeetsorexceedstherequirementsofAAMA2604-98andcontains at least 50% Kynar®fluoropolymer.Or

A TRINAR®finishthatmeetsorexceedstherequirementsofAAMA65.2andcontainsat least 70% Kynar®fluoropolymer.(TheTrinarfinishprovidesextraprotection incoastalenvironments.)Or

A TRINAR®finishwithacleartopcoatthatmeetsorexceedstherequirementsofAAMA 65.2 and contains at least 70% Kynar®fluoropolymerfinish.(TheTrinarfinishwith top coat provides extra protection in coastal and corrosive environments and is themostdurablefinish).Or

An anodized finish. The anodized finish shall be: (select oneof the following)clear,litebronze,mediumbronze,darkbronzeorblack.

tHerMoStat(Selectone)note:Unitswithtwostagecompressorsrequirea2-stagecoolthermostat.

14.0 Heat pump thermostat shall be a digital, 7 day, 5-2 and 5-1-1 day programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Or

14.0 Heat pump thermostat shall be a digital, seven day, two occupied and two unoccupied periods for each day of the week programmable thermostat. Three stage heat/three stagecool.Manualorauto-changeover(selectable).Fan:AutoorOn.(selectable).


Ten year retention of program settings and 48 hour clock and time settings on power loss. Adjustable maximum set point for heating and minimum set point for cooling. Adjustable temperature differential. Keypad lockout. Status LED’s. °F or °C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Or

14.0 Heat pump thermostat shall be a digital, non-programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Or

14.0 Heat pump thermostat shall be a Mar5000 people sensing, automatic setback digital thermostat. Using an occupancy sensor, the thermostat shall have the capability to determine whether the room is occupied or vacant. When people are present, the temperature is automatically maintained. When vacant, the thermostat automatically shall reduce the run time of the heat pump and the ventilation cycle to save energy. The thermostat shall have a dedicated relay to control the ventilation cycle. The relay may receive an input from an occupancy sensor, a light sensor or other external device. The Mar5000 thermostat shall continually update the occupancy pattern to ensure that the set point temperature is achievedwithin a specific timewhenanoccupant returns to the room. Set points shall be kept in memory for up to 3-1/2 weeks in the event of a power loss. The thermostat shall have an integral, solid state humidity/dew point sensor. This sensor shall activate the heat pump to limit humidity in the classroom. The thermostat shall be capable of recording occupancy and HVAC usage patterns for management reports. The thermostat shall be UL listed, FCCcertifiedandEnergyStarqualified.

CONTraCTOr INSTallaTION15.0 The cabinet with the outdoor louver shall be installed and leveled in accordance with

the written instructions provided by Marvair®.

15.1 An external condensate line shall be connected to the Scholar heat pump. The condensate line exit shall be (selectone)at the rear of the heat pump or through the base of the heat pump.

15.2 Hot Water coil supply and return piping and control valves shall be installed in accordancewiththedrawingsandspecifications.

15.3 Line and control voltage connections shall be made to the appropriate terminals within the Scholar III heat pump.

15.4 All external control devices shall be wired to the appropriate terminals within the Scholar III heat pump.

Marvair® is committed to continued product improvement, please consult Marvair’s website at www.marvair.com for latest product literature. Specifications subject to change without notice. Unit must be installed in accordance with installation instructions. A complete warranty statement can be found in the Installation/Operation Manual, on our website or by contacting Marvair at 229-273-3636.

Scholar Combo EDM 2/2011 rev. 3 Appendix I -1 HVAC Equipment

appendixI–engineeringSpecificationGuides

SCHOlar III aIr CONdITIONErS ModelsVaIa24-30-36-40-42-48-60(1-stagecompressor)

andVaISa36-40-48-60(2-stagecompressor)

ENgINEErINg SpECIfICaTION guIdE fOr aIr TO aIr SElf CONTaINEd flOOr STaNdINg aIr CONdITIONErS

gENEral 1.0 Furnish and install a Scholar III Air conditioner, Model VAI *1A**2 ac *3 – ***4 *5 self-

contained,floorstanding, through-the-wall,air-to-airairconditionermanufacturedby Marvair®. (See model ID in the product Data Sheet for identification ofoptions).The air conditioner shall be completely factory assembled and tested, and shall include compressor, indoor and outdoor coils, fans and motors as required, prewired controls, interconnecting refrigerant tubing, wiring, breaker disconnects, built-in fresh air ventilation feature, and other necessary components mounted in a corrosion resistant, double walled cabinet. The system shall be shipped from the factorywithafulloperatingR-410Arefrigerantandoilcharge.Allfieldwiringshallbein accordance with the National Electric Code and local codes.

The air conditioner shall be capable of accepting factory supplied optional plenums providing freeblow conditioned air into the space, or ducted distribution. Further, air conditioner can be equipped with factory supplied optional electric resistance heat or hot water heat.


2Nominal cooling capacity in BTUH. Example: 36 =36,000 BTUH3PowerSupplydesignator.A=208/230v.1ø;C=208/230v.3ø;D=460v.3ø4 Electric strip heat in kW. Example: 100 = 10 kilowatts of electric heat.5VentilationConfiguration.SeeSection4.

apprOValS The complete package shall be ETL Listed and tested to UL Standard 1995, 2nd Edition 2.0 andCAN/CSA-C22.2No.236-952ndEdition for safety.Theunit shall be certifiedto the current version of the Air Conditioning Heating and Refrigeration Institute (AHRI)Standard390.ThemanufactureroftheairconditionershallbeISO90012000certified.

CErTIfIEd pErfOrmaNCE 3.0 COOLING. When rated at ARI Standard 390 with no outside air, the total net cooling

capacity of the air conditioner shall be BTUH or greater, and sensible capacity shall be BTUH or greater at conditions of: CFM evaporator entering air of 80°F dry bulb, 67°F wet bulb and condenser entering air temperature of 95°F dry bulb. Models VAIA with single stage compressors shall have an EER of or higher, at this condition. Models VAISA with two stage compressorsshallhaveanIntegratedPartLoadValue(IPLV)of_________orhigher,at this condition.

3.1 HEAT 3.1.2 NO HEAT. The Scholar III air conditioner shall have no electric resistance or hot


water heat. Or

3.1.2 ELECTRIC HEAT. The air conditioner shall have a factory supplied electric resistance heater, designed specifically for application to the Scholar III airconditioner. The Scholar III air conditioner shall have electric resistance heat of kW (5,7.5,10,or15kW,select one) to satisfy heat loss at winter design conditions. The heater elements shall be constructed of nichrome wire and protected by a bimetal thermostat and a thermal cut-out. Or

3.1.2 HOT WATER HEAT. The air conditioner shall have a complete factory assembled hotwaterheatingcoilandplenumassembly,equippedwithafreezeprotectionthermostat(24volt).Theheatingcoilshallbemanufacturedofseamlesscoppertubingwithaluminumfinsmechanicallybondedtothetubing.Theplenumshallbe fully insulatedwith heat reflecting, foil faced thermal/acoustical insulation.Heat of BTUH of hot water entering at °F and flowingatarateof GPM with inlet air at CFM and °F entering temperature shall be provided to satisfy heat loss at winter design conditions.

frESH aIr VENTIlaTION CONfIguraTIONS (onemustbeselected)4.0 FIXEDPOSITIONMANUALDAMPER,VentilationConfiguration“N”.Freshairventilation

with pressure relief shall be provided at the rate of CFM(0to450cfmbutnot toexceed40%of the ratedairflow)byamanualdamper.After theinstallation of the Scholar III air conditioner in the classroom, the damper shall be adjustedforrequiredrateofventilation.Configurationshall includeafilter fortheincoming ventilation air, a ventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 TWO POSITION MOTORIZED DAMPER, Ventilation Configuration “B”. Fresh airventilation with pressure relief shall be provided at the rate of CFM (0 to450cfmbutnot toexceed40%of theratedairflow)bya factory installedmotorized,twopositiondamper.AftertheinstallationoftheScholarIIIairconditionerin the classroom, the damper shall be adjusted for required rate of ventilation. The factoryinstalledmotorizeddampershalloperateon (24,120,or240V - select one)toregulatefreshairventilationinresponsetoanenergymanagementsystemorothertypeofcontrol,externaltotheScholarIIIairconditioner.Configurationshallincludeafilterfortheincomingventilationair,aventilationintakeblowermotorand a speed controller for the ventilation intake blower motor. Or

4.0 POWERVENTWITHTWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“J”. Fresh air ventilation with pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)fortheintakeairand CFM(0to450cfm)fortheexhaustairbyafactoryinstalledmotorized,twopositiondamper. After the installation of the Scholar III air conditioner in the classroom, the damper shall be adjusted for required rate of ventilation. The factory installed motorizeddampershalloperateon (24,120,or240V-select one)to regulate fresh air ventilation in response to an energy management system or othertypeofcontrol,externaltotheScholarIIIairconditioner.Configurationshallincludeafilterfortheincomingventilationair,aventilationintakeairblowermotor,aventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor. (anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilation


motors to be independently controlled and positive pressurization of theclassroom.)Or

4.0 GreenWheel® Energy Recovery Ventilator, Ventilation Configuration “H”. airconditioner shall have a GreenWheel® energy recovery ventilator that simultaneously exhausts indoor air at the rate of CFM for the exhaust air and brings in CFMontheintakeair,withamaximumof450CFMandanefficiencyofupto75%.After the installation of the Scholar III air conditioner in the classroom, the damper shallbeadjustedfortherequiredrateofventilation.Configurationshallincludeafilterfortheincomingventilationair,afilterfortheexhaustventilationair,aventilationintake air blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor. (anoptional factory installedsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobeindependentlycontrolledandpositivepressurizationoftheclassroom.)

4.1 Wheel Media: The enthalpy wheel shall be constructed of corrugated synthetic fibrousmedia,withadesiccantintimatelyboundanduniformlyandpermanentlydispersed throughout the matrix structure of the media. Rotors with desiccants coated, bonded, or synthesized onto the media are not acceptable due todelamination or erosion of the desiccant material. Media shall be synthetic to provide corrosion resistance and resistance against attack from laboratory chemicals present in pharmaceutical, hospital, etc. environments as well as attack from external outdoor air conditions. Coated aluminum is not acceptable. Face flatnessofthewheelshallbemaximized(±0.032in)inordertominimizewearoninnersealsurfacesandtominimizecrossleakage.Rotorshallbeconstructedofalternatinglayersofflatandcorrugatedmedia.Wheellayersshouldbeuniforminconstructionforminguniformaperturesizesforairflow.Wheelconstructionshallbeflutedorformedhoneycombgeometrysoastoeliminateinternalwheelbypass. Wheel layers that canbe separatedor spreadapart by air flowareunacceptable due to the possibility of channeling and performance degradation. The media shall be in accordance with UL guidelines.




4.5 WheelCassette:Cassettesshallbefabricatedof18gaugereinforcedgalvanizedsteel. Bearings shall be inboard, zero maintenance, permanently sealed ballbearings. Drive systems shall consist of fractional horsepower A.C. drive motors with polyurethane drive belts.


4.0 GreenCube™EnergyRecoveryVentilator.Configuration“Q”.Theairconditionershallhave a GreenCube energy recovery ventilator that transfers both sensible and latent energiesbetweenoutgoingandincomingairstreamsinacrossflowarrangement.


4.1 Dessicant Material: The enthalpy plate exchanger media shall be impregnated with a RC134 polymeric desiccant. The hydroscopic polymer shall exchange water by direct vapor transfer using molecular transport without the need of condensation. Desiccant shall be bactericide. The desiccant shall be tested by a third party laboratory and the document showing the tests results shall be supplied to the air handling unit end user upon request.

4.2 Core construction. The core shall be constructed of alternate layers of corrugated aluminum material and polymeric desiccant impregnated media. The enthalpy plate exchanger shall have a unique rectangular flute design to provide verylow pressure drop values. The enthalpy plate exchanger shall operate at temperatures between -40°F and 113°F (40°and 45°C). The enthalpy plateexchanger shall withstand, without more than 10% increase of pressure drop pressure differential of at least 2”. It shall withstand pressure differential of 10” without permanent deformation or decrease of performance. The enthalpy plate exchanger shall withstand, without more than 10% increase of pressure drop, a pressure differential of at least 2”. It shall withstand pressure differential of 10” without permanent deformation or decrease of performance.

4.3 Filters:AsspecifiedinASHRAE52.2-2007,MERV6typefiltersshallbeusedonboth faces of the enthalpy core.

4.4 Flame spread: The enthalpy plate exchanger shall meet NFPA90A and 90B requirements forflamespread,not toexceed25,andsmokegeneration,notto exceed 50, through an ongoing testing and verification program using ULStandard 723. Tests according to UL900 are not acceptable.

4.5 Quality assurance: The enthalpy plate exchanger shall be a UL recognizedcomponent and shall comply with the requirement of UL723. The manufacturer of the enthalpy plate exchanger shall be a participant in the AHRI Standard 1060-2005certificationprogram.

4.6 PerformanceCertifications: The enthalpy plate exchanger shall be listed intheAHRICertifiedProductDirectoryandshallbeartheAHRICertifiedProductSeal. Sensible, latent and total effectiveness along with pressure drop, EATR and OACF rating shall be clearly documented with performance tests conducted in accordance with ASHRAE Standard 84-91 and ARI Standard 1060-2005.

HOT gaS rEHEaT fOr dEHumIdIfICaTION (Optional,selectifdesired)note:WhenoutsideventilationairisbroughtintotheclassroombytheScholarunit,foroptimumperformancehotgasreheatshouldbeusedinconjunctionwiththeGreenWheel® erVorGreencube™.Whenusedwithamotorizeddamper,hotgasreheatalonemay notmaintain satisfactory control of the humidity in the classroom over alloutdoorconditions.HotGasreheatshouldnotbeusedwithScholarunitswithamanualdamper.

HOT GAS REHEAT DEHUMIDIFICATION. The Scholar III air conditioner shall have 5.0 a full facehotgas reheatcoil toallowdehumidification throughcontinuedcoolingwith reheated discharge air to avoid over cooling the classroom. The hot gas reheat coil shall be sizedand configured so that 100%of the supply air passes throughthereheatcoil.Thehotgasdehumidificationoptioncanbeusedwithelectricorhotwaterheat.Thehotgasreheat(HGR)coilshallbeconstructedofaluminumplatefinmechanically bonded to seamless copper tubes. The operation of the HGR shall be controlledbyathree-wayheatreclaimvalve.TheHGRcoilshallbesizedtoprovide


a heating capacity approximately equal to the sensible cooling capacity of the air conditioner.

Digital Humidity Controller. The hot gas reheat function shall be controlled by a 5.1 programmable humidity controller. Controller shall be capable of setting the time ofdayfordehumidificationfunction.Controllershallhavepermanentmemoryretentionofsetpointsandbecapableoffieldcalibration.Controllershallhavefieldselectablehigh&lowdehumidificationsetpoints.Outdoortemperatureandhumidity sensor shall be included. Controller shall display temperature in either ºF or ºC.

ModulatingHotGasReheat(Optional,selectifdesired).Tomaintainaconstant5.2 discharge temperature during reheat operation, the operation Hot Gas Reheat function shall be with a modulating valve, a PC board and temperature sensor.

VENTIlaTION baCk drafT dampEr (Optional,selectifdesired)VentilationBackdraftDamper.Aflappertypebackdraftdampershallbefactory6.0 installedtopreventinfiltrationofoutsideairfromenteringtheScholarIIIunitwhen it is not operating. The damper shall open whenever the ventilation blower is operating and shall automatically close whenever the ventilation blower is off.

dESIgN fEaTurES & COmpONENTS 7.0 RETURN AIR FILTERS. The air conditioner shall have two (1”standard

or 2” optional, selectone)filamentspunglassairfilters,mounted internallyandfactory supplied.

7.1 CABINET. The exterior cabinet panels of the air conditioner shall be constructed of 16 gaugegalvanizedsteelwitha_____(select one: greyorbeige)polyesterfinishcoveringthefrontandsidesofthecabinetexteriorsurface.Thefinishshallbehighlyresistant to abrasion, metal marking, staining, pressure mottling and require minimal maintenance. All exterior sheet metal panels shall be of double wall construction consisting of perforated metal on the interior with a flexible resilient acousticaland thermal insulation to enhance sound absorption at high and low frequencies sandwiched between the exterior and interior sheet metal panels. The insulation shall withstand damage from mechanical abrasion and from air erosion during service. Thickness of insulation shall be 1-1/4”. The perforation pattern and the insulation shallbedesignedtooptimizethereductionofsound.Theabsorptionmechanismofthese panels shall be a combination of the perforated panels and a thick air layer backingactingtogetherasaHelmholtzResonatortoabsorbsoundinmid-rangeandlowfrequencies;and,inaddition,theexistenceofmultipleaircolumnresonancesinthe air layer absorb sound in the mid-range and high frequencies.

All outside cabinet panels shall be fastened with a tamper-resistant Torxhead™ sheet metal screws.

7.2 COMPRESSOR. (One must be selected).The compressor shall be a single stage, fully hermetic scroll type. Or The compressor shall be a two stage, fully hermetic scroll type.

7.3 CONDENSATE REMOVAL. The condensate removal shall have two exits from the air conditioner, back and bottom. The air conditioner shall have a factory assembled and supplied trapping system internal to the unit, eliminating the requirement for an external trap in the condensate drain system.

7.3.1 CONDENSATE PAN FREEZE PROTECTION (optional, but recommended in


areassubjectto lowoutdoorambients). The condensate pan shall have a factory installed tubular immersion type heater with built-in resistance to shock, corrosion, vibration and temperature extremes.

7.4 CONTROLS. The internal circuit shall consist of a current limiting type transformer to generate 24 VAC, switching devices to operate the compressor, indoor fan motor, outdoor airmovers, optional electrical heater(s); and optionalmotorized damper,optional GreenWheel® energy recovery ventilator, and optional hot gas reheat. The controlcircuit forthemotorizedfreshairdamperwithPowerVentandGreenWheelventilation shall incorporate a fan speed control to allow adjustment of the fresh air intake and exhaust blowers allowing adjustment of outside air up to 450 cfm (maximumof40%ofratedairflow).

7.4.1 The Scholar III air conditioner shall have a factory installed microprocessor with LED lights to show operations status and provide assistance with diagnosis if troubleshootingiseverrequired.Theinternalcontrolshallbefieldprogrammablemicroprocessor based incorporating optically isolated thermostat connections as well as galvanically isolated dry contact outputs. All wiring external to the control box and directly interfaced to the control system shall be no greater than 24 VAC.

7.4.2 The control system shall incorporate a safety circuit to render the refrigeration system(compressorandoutdoorfanmotor)inoperativewheneverthelimitsof high pressure or low pressure switch are exceeded. This safety circuit shall not be affected by temperature extremes and shall not cause nuisance system shutdownduringtimeoflowtemperaturestart-up(operation).Thelowpressureswitch shall be bypassed for 8-1/2 minutes during start-up. The system will lockout if the loss of charge switch opens three times within one hour or if it does not reset within 8-1/2 minutes of the unit start-up. The safety circuit shall be re-settable at the wall thermostat. A “Fault” light located on the controller shall indicate that a safety lockout has occurred and which condition has caused the lockout.

7.4.3Thecontrolsystemshallprovidemeans(Anti-ShortCycleTimer) topreventthe compressor from cycling at a rate that would cause damage or undue wear to the compressor. This time interval shall be adjustable from 1 minute to 8 minuteswithouttheuseofextraequipmentorspecializedtools.

7.4.4 The control system shall perform extensive self-diagnostics to assess the operational status and indicate a fault when detected. The control system shall have the ability to be programmed remotely or with a removable program storage device. This storage device shall not require any special intervention by the operator. The control system shall allow access to the pertinent statistical data about the history of the refrigerant system.

7.5 INDOOR BLOWER AND MOTOR. The indoor blower motor shall be an electronically commutated type motor. The motor’s control shall be encapsulated to prevent water from reaching its electronic components. The motor shall automatically deliver constantairflowoverawiderangeofexternalstaticpressuresbychangingitstorqueand speed without external sensors. The motor shall be factory programmed to slowly ramp up the speed to eliminate the abrupt change in sound when the motor starts.


7.7 OUTDOOR AIR MOVER The outdoor air mover on 2, 2-1/2, 3 & 3-1/2 ton models


shallbeanaxialfantypewithanasynchronousexternalrotormotor(ACmotor).The impeller shall be sickle shaped and be of a die-cast aluminum construction for low noise and high performance. The motor shall be equipped with automatic speed control with voltage variation for operation over a wide range of ambient conditions.

The outdoor air mover on 4 & 5 ton models shall have dual blowers with an electronically commutated motor.

REFRIGERATIONCIRCUIT.Therefrigerationcircuitshallcontainaliquidfilterdryer7.8 and suction and liquid access valves. The refrigeration circuit shall be protected from high pressure and loss of charge by a positive lockout device. The refrigerant metering deviceshallbeathermalexpansionvalveontheindoor(cooling)circuit.

SINGLE POINT POWER ENTRY. 7.9 (Select ifdesired) The Scholar III air conditioner shall have a single point power entry for line voltage.

teStInG. The air conditioner shall be factory tested and inspected after receiving the prescribed 8.0 refrigerantchargeinfinalassembly.Aspartofthetotalqualityassuranceprocedure,such testing and inspection shall serve to ensure proper construction, including testing the sealed refrigerant system, control functions, and general operation of the air conditioner.

aIr dISTrIbuTION (One must be selected)9.0 Conditioned air leaving the air conditioner shall leave through a freeblow plenum.


9.0 Conditioned air leaving the air conditioner shall leave through a ducted discharge plenum.Plenumsshallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet

eXtenSIonplenUM(optional)Afactorysuppliedextensionplenumconstructedwiththesamefinishasthecabinet,10.0 to extend the height of the unit to the ceiling.

VErTICal TrIm paNElS (optional)Sheet metal trim panels, of the same color as the Scholar III air conditioner’s cabinet, 11.0 shall be installed on both the left and right sides of the air conditioner. The trim panelsprovideafinishedappearanceandcoveranyspacebetweentherearoftheair conditioner and the interior wall. Trim panels shall extend the full height of the air conditionerandplenumandshallbe_____incheswide.

BaSeStanDS(optional)TheScholarIIIairconditionershallbeinstalledontopofa____inch12.0 (4”,5”,6”or8”high, select one) high base stand. The base stand shall be of the dimensions as the base of the air conditioner and shall be designed to support the air conditioner. The base stand shall be the same color as the cabinet of the Scholar air conditioner.

OuTdOOr lOuVEr 13.0 The outdoor louver shall be constructed of 6063-T5 alloyed aluminum extrusion with

42° blade angles with a color selected by the architect or engineer. The louvers shall be designed not to hinder the intake or egress of the condenser air and the outside ventilation air and to separate the air streams. The spacing and the design of the


bladesshallminimizethepossibilityofwaterintrusion.

13.1Thefinishofthelouvershallbe:(selectoneofthefollowing)


A TRINAR®finishthatmeetsorexceedstherequirementsofAAMA65.2andcontainsat least 70% Kynar®fluoropolymer.(TheTrinarfinishprovidesextraprotection incoastalenvironments.)Or

A TRINAR®finishwithacleartopcoatthatmeetsorexceedstherequirementsofAAMA 65.2 and contains at least 70% Kynar®fluoropolymerfinish.(TheTrinarfinishwith top coat provides extra protection in coastal and corrosive environments and is themostdurablefinish).Or

An anodized finish. The anodized finish shall be: (select oneof the following)clear,litebronze,mediumbronze,darkbronzeorblack.


14.0 Thermostat shall be a digital, 7 day, 5-2 and 5-1-1 day programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Or

14.0 Thermostat shall be a digital 1 stage heat, 1 stage cool, non- programmable thermostat, Marvair model 50121. Fan switch: Auto & ON. Manual changeover system switch: Cool-Heat-Off.

14.0 Thermostat shall be a digital 1 stage heat, 1 stage cool, seven day programmable thermostat, Marvair model 50123. Fan switch: Auto & ON. Auto Changeover system switch: Auto-Cool-Heat-Off.

14.0 Thermostat shall be a digital, seven day, two occupied and two unoccupied periods for each day of the week programmable thermostat. Three stage heat/three stage cool. Manual or auto-changeover (selectable). Fan: Auto or On. (selectable). Tenyear retention of program settings and 48 hour clock and time settings on power loss. Adjustable maximum set point for heating and minimum set point for cooling. Adjustable temperature differential. Keypad lockout. Status LED’s. °F or °C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Or

14.0 Thermostat shall be a digital, non-programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Or

14.0 Thermostat shall be a Mar5000 people sensing, automatic setback digital thermostat. Using an occupancy sensor, the thermostat shall have the capability to determine whether the room is occupied or vacant. When people are present, the temperature is automatically maintained. When vacant, the thermostat automatically shall reduce the run time of the air conditioner and the ventilation cycle to save energy. The thermostat shall have a dedicated relay to control the ventilation cycle. The relay may


receive an input from an occupancy sensor, a light sensor or other external device. The Mar5000 thermostat shall continually update the occupancy pattern to ensure thatthesetpointtemperatureisachievedwithinaspecifictimewhenanoccupantreturns to the room. Set points shall be kept in memory for up to 3-1/2 weeks in the event of a power loss. The thermostat shall have an integral, solid state humidity/dew point sensor. This sensor shall activate the air conditioner to limit humidity in the classroom. The thermostat shall be capable of recording occupancy and HVAC usage patternsformanagementreports.ThethermostatshallbeULlisted,FCCcertifiedandEnergyStarqualified.



15.1 An external condensate line shall be connected to the Scholar air conditioner. The condensate line exit shall be (selectone)at the rear of the air conditioner or through the base of the air conditioner.

15.2 Hot Water coil supply and return piping and control valves shall be installed in accordancewiththedrawingsandspecifications.

15.3 Line and control voltage connections shall be made to the appropriate terminals within the Scholar III air conditioner.

15.4 All external control devices shall be wired to the appropriate terminals within the Scholar III air conditioner.

Marvair® is committed to continued product improvement, please consult Marvair’s website at www.marvair.com for latest product literature. Specifications subject to change without notice. Unit must be installed in accordance with installation instructions. A complete warranty statement can be found in the Installation/Operation Manual, on our website or by contacting Marvair at 229-273-3636.

Scholar Combo EDM 2/2011 rev. 3 Appendix J -1 HVAC Equipment

appendixJ–engineeringSpecificationGuides

SCHOlar qV HEaT pumpSModelsVaca24-30-36-40-49-60(1-stagecompressor)

andVacSa36-49-60(2-stagecompressor)ENgINEErINg SpECIfICaTION guIdE fOr aIr TO aIr

SElf CONTaINEd flOOr STaNdINg HEaT pumpS

gENEral 1.0 Furnish and install a Scholar QV heat Pump, Model VAC *1A**2 HP *3 – ***4 *5 self-contained,

floor standing, through-the-wall, air-to-air heat pump manufactured by Marvair®. (See modelIDintheScholarQVproductDataSheetforidentificationofoptions.) The heat pump shall be completely factory assembled and tested, and shall include compressor, indoor and outdoor coils, fans and motors as required, prewired controls, interconnecting refrigerant tubing, wiring, HACR breaker disconnects, built-in fresh air ventilation feature, and other necessary components mounted in a corrosion resistant cabinet. The system shall beshippedfromthefactorywithafulloperatingR-410Arefrigerantandoilcharge.Allfieldwiring shall be in accordance with the National Electric Code and local codes.

The heat pump shall be capable of accepting factory supplied optional plenums providing freeblow conditioned air into the space, or ducted distribution. Further, heat pump can be equipped with factory supplied optional electric resistance heat or hot water heat and accessories.

Double hinged front doors shall provide access to all primary components and controls including the condenser motor, the evaporator motor, the compressor and the intake and exhaust air movers for the outside air ventilation systems.

1S=2-stage compressor

2Nominal cooling capacity in BTUH. Example: 36 =36,000 BTUH3PowerSupplydesignator.A=208/230v.1ø;C=208/230v.3ø;D=460v.3ø4 Electric strip heat in kW. Example: 100 = 10 kilowatts of electric heat. 090 = 9 kw of heat.

5VentilationConfiguration.SeeSection4.

apprOValS 2.0 EachheatpumpshallbecertifiedinaccordancewithARIStandard390andlistedbyETL

to the current editions of UL standard 1995 and CAN/CSA-C22.2 No. 236-95 for safety. ThemanufactureroftheheatpumpshallbeISO9001-2000certified.

pErfOrmaNCE 3.0 COOLING. When rated at ARI Standard 390 with no outside air, the total net cooling capacity

of the heat pump shall be BTUH or greater, and sensible capacity shall be BTUH or greater at conditions of: CFM evaporator entering air of 80°F dry bulb, 67°F wet bulb and condenser entering air temperature of 95°F dry bulb. Models VACA with single stage compressors shall have an EER of or higher, at this condition. Models VACSA with two stage compressors shall have an Integrated Part Load Value(IPLV)of_________orhigher,atthiscondition.

HEATING. When rated at ARI Standard 390, the heating capacity shall be 3.1 BTUH or greater when rated at 47°F dry bulb outdoor ambient with CFM and 70°F airenteringtheindoor(heating)coil.Theheatingcapacityshallbe BTUH or greater when rated at 17°F dry bulb outdoor ambient with CFM and


70°Fairenteringtheindoor(heating)coil.Theequipmentmusthaveaminimumheatingof COPat47°Fdrybulboutdoorambient(hightemperature)andaminimum COP at 17°F dry bulb outdoor ambient (low temperature) with 70° air entering theindoor coil. Supplemental heat of kW electric resistance heat shall be provided to satisfy heat loss at winter design conditions. Alternatively, supplemental heat of BTUH of hot water entering at °Fandflowingatarateof GPM with inlet air at CFM and °F entering temperature shall be provided to satisfy heat loss at winter design conditions.

SUPPLEMENTAL HEAT (One must be selected)3.1.2 NO HEAT. The Scholar QV heat pump shall have no electric resistance or hot water

heat. Or

3.1.2 ELECTRIC HEAT. The heat pump shall have a factory supplied electric resistance heater, designed specifically for application to the Scholar QV heat pump. TheScholar QV heat pump shall have electric resistance heat of kW (5,7.5,10,or15kW, select one).Theheaterelementsshallbeconstructedofnichrome wire and protected by a bimetal thermostat and a thermal cut-out. Or

3.1.2 HOT WATER HEAT. The heat pump shall have a complete factory assembled hot water heating coil and plenum assembly, equipped with a freeze protection thermostat(24volt). Theheating coil shall bemanufacturedof seamless copper tubingwithaluminumfinsmechanicallybondedtothetubing.Theplenumshallbefullyinsulatedwith heat reflecting, foil faced thermal/acoustical insulation. Supplemental heatof BTUH of hot water entering at °Fandflowingatarateof GPM with inlet air at CFM and °F entering temperature shall be provided to satisfy heat loss at winter design conditions.

frESH aIr VENTIlaTION CONfIguraTIONS (oneoftheVentilationoptionsmustbeselected)4.0 FIXEDPOSITIONMANUALDAMPER,VentilationConfiguration“N”.Freshairventilation

with pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)byamanualdamper.Aftertheinstallationof the Scholar QV heat pump in the classroom, the damper shall be adjusted for required rateofventilation.Configurationshallincludeafilterfortheincomingventilationair,aventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 TWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“B”.Freshairventilationwith pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)byafactoryinstalledmotorized,twopositiondamper. After the installation of the Scholar QV heat pump in the classroom, the damper shallbeadjustedforrequiredrateofventilation.Thefactoryinstalledmotorizeddampershall operate on (24, 120, or 240V - select one) to regulate freshair ventilation in response to an energy management system or other type of control, externaltotheScholarQVheatpump.Configurationshallincludeafilterfortheincomingventilation air, a ventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 POWERVENTWITHTWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“J”.Fresh air ventilation with pressure relief shall be provided at the rate of CFM (0 to 450 cfm but not to exceed 40% of the rated air flow) for the intake air and CFM(0 to450cfm) for theexhaustairbya factory installedmotorized, twopositiondamper. After the installation of the Scholar QV heat pump in the classroom, the damper shallbeadjustedforrequiredrateofventilation.Thefactoryinstalledmotorizeddampershall operate on (24,120,or240V-select one) toregulate freshair


ventilation in response to an energy management system or other type of control, externaltotheScholarQVheatpump.Configurationshallincludeafilterfortheincomingventilation air, a ventilation intake air blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor. (anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobe independentlycontrolledandpositivepressurizationoftheclassroom.) Or

4.0 GreenWheel® Energy Recovery Ventilator,VentilationConfiguration“H”.Theheatpumpshall have a GreenWheel® energy recovery ventilator that simultaneously exhausts indoor air at the rate of CFM for the exhaust air and brings in CFM ontheintakeair,withamaximumof450CFMandanefficiencyofupto75%.Aftertheinstallation of the Scholar QV heat pump in the classroom, the damper shall be adjusted fortherequiredrateofventilation.Configurationshallincludeafilterfortheincomingventilationair,afilterfortheexhaustventilationair,aventilationintakeairblowermotor,a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor.(anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobeindependentlycontrolledandpositivepressurizationoftheclassroom.)

4.1 WheelMedia:Theenthalpywheelshallbeconstructedofcorrugatedsyntheticfibrousmedia, with a desiccant intimately bound and uniformly and permanently dispersed throughout the matrix structure of the media. Rotors with desiccants coated, bonded, orsynthesizedontothemediaarenotacceptableduetodelaminationorerosionofthe desiccant material. Media shall be synthetic to provide corrosion resistance and resistance against attack from laboratory chemicals present in pharmaceutical, hospital, etc. environments as well as attack from external outdoor air conditions. Coatedaluminumisnotacceptable.Faceflatnessofthewheelshallbemaximized(±0.032in)inordertominimizewearoninnersealsurfacesandtominimizecrossleakage. Rotor shall be constructed of alternating layers of flat and corrugatedmedia. Wheel layers should be uniform in construction forming uniform aperture sizesforairflow.Wheelconstructionshallbeflutedorformedhoneycombgeometryso as to eliminate internal wheel bypass. Wheel layers that can be separated or spreadapartbyairflowareunacceptableduetothepossibilityofchannelingandperformance degradation. The media shall be in accordance with UL guidelines.

4.2 DesiccantMaterial:Thedesiccantmaterialshallbea4Amolecularsievetominimizecross contamination.

4.3 Wheel Media Support System: The wheel frames shall consist of evenly spaced galvanized steel spokes, a stainless steel outer band and rigid center hub. Thewheel construction should allow for post fabrication wheel alignment.


4.5 WheelCassette: Cassettesshallbe fabricatedof18gaugereinforcedgalvanizedsteel. Bearings shall be inboard, zero maintenance, permanently sealed ballbearings. Drive systems shall consist of fractional horsepower A.C. drive motors with polyurethane drive belts.

4.6 Certification: Theenergyrecoverywheelandthecassetteshallbetestedandcertifiedaccording to ARI Standard 1060.


HOT gaS rEHEaT fOr dEHumIdIfICaTION (Optional, select ifdesired)note:WhenoutsideventilationairisbroughtintotheclassroombytheScholarunit,foroptimumperformancehotgasreheatshouldbeusedinconjunctionwiththeGreenWheel®erV.Whenusedwithamotorizeddamper,hotgasreheatalonemaynotmaintainsatisfactorycontrolofthehumidityintheclassroomoveralloutdoorconditions.HotGasreheatshouldnotbeusedwithScholarunitswithamanualdamper.

HOT GAS REHEAT DEHUMIDIFICATION. The Scholar QV heat pump shall have hot gas 5.0 reheatcoiltoallowdehumidificationthroughcontinuedcoolingwithdischargeairreheatedtoavoidovercoolingtheclassroom.Thehotgasdehumidificationoptioncanbeusedwithelectricorhotwaterheat.Thehotgasreheat(HGR)coilshallbeconstructedofaluminumplatefinmechanicallybondedtoseamlesscoppertubes.TheoperationoftheHGRshallbecontrolledbyathree-wayheatreclaimvalve.TheHGRcoilshallbesizedtoprovideaheating capacity approximately equal to the sensible capacity of the heat pump.

Digital Humidity Controller. The hot gas reheat function shall be controlled by a 5.1 programmable humidity controller. Controller shall be capable of setting the time of day fordehumidificationfunction.Controllershallhavepermanentmemoryretentionofsetpointsandbecapableoffieldcalibration.Controllershallhavefieldselectablehigh&lowdehumidificationsetpoints.Outdoortemperatureandhumiditysensorshallbeincluded.Controller shall display temperature in either ºF or ºC.

dESIgN fEaTurES & COmpONENTS 6.0 AIR FILTER. The heat pump shall accept a (1”standardor2”optional,

select one)filamentspunglassairfilter,mountedinternallyandfactorysupplied,andlocated behind the return air grille.

6.1 CABINET. The exterior front and side panels of the cabinet of the heat pump shall be constructed of (select one: 16or20) gaugegalvanized steelwith a_____(select one: greyorbeige)polyesterfinish.Thefinishshallbehighlyresistanttoabrasion, metal marking, staining, pressure mottling and require minimal maintenance. Interiorsurfaceofcabinetshallbelinedwithaflexibleresilientacousticalandthermalinsulationcomposedofglassfiberswithadurableblackcoatingwithhighdensityskinandlight density core to enhance sound absorption at high and low frequencies. The insulation shall withstand damage from mechanical abrasion and from air erosion during service. Thickness of insulation shall be 1-1/2”. All outside cabinet panels shall be fastened with a tamper-resistant Torxhead™ sheet metal screws.


CONDENSATE REMOVAL. The condensate removal shall have two exits from the heat 6.3 pump- through the bottom or through the lower back panel. The heat pump shall have a factory assembled and supplied trapping system internal to the unit, eliminating the requirement for an external trap in the condensate drain system.

6.3.1 CONDENSATE PAN & DRAIN LINE FREEZE PROTECTION (optional,butrecommendedinareassubjecttolowoutdoorambients). The condensate pan shall have a factory installed tubular immersion type heater with built-in resistance to shock, corrosion, vibration and temperature extremes. The condensate drain line shall be factorywrappedwithaself-regulatingheatingcabledesignedtopreventfreezingofthe condensate.


6.4 CONTROLS. The internal circuit shall consist of a current limiting type transformer to generate 24 VAC, switching devices to operate the compressor, indoor fan motor, outdoor air movers, optionalelectricalheater(s);andoptionalmotorizeddamper,optionalGreenWheel® energy recovery ventilator, and optional hot gas reheat. The control circuit shall incorporate a fan speed control to allow adjustment of the indoor air circulating blower.

6.4.1 The Scholar QV heat pump shall have a factory installed microprocessor with LED lights to show operations status and provide assistance with diagnosis if troubleshootingiseverrequired.Theinternalcontrolshallbefieldprogrammablemicroprocessor based incorporating optically isolated thermostat connections as well as galvanically isolated dry contact outputs. All wiring external to the control box and directly interfaced to the control system shall be no greater than 24 VAC. The control system shall provide Defrost Control based on time and temperature. The time interval shall be adjustable from 30 to 90 minutes in 1-minute increments. The control system shall initiate a defrost cycle only if the outdoor coil temperature indicates the possibility of an iced condition (28°F). The defrost control circuitshall terminate the defrost cycle when the coil temperature has been elevated to a satisfactorylevel(56°F)thatassuresallicehasbeenremovedfromthecoiloratthe end of 10 minutes of defrost operation.

6.4.2 The control system shall incorporate a safety circuit to render the refrigeration system(compressorandoutdoor fanmotor) inoperativewhenever the limitsofhighpressureorlossofrefrigerantswitchareexceededortheindoorcoilfreezesup. This safety circuit shall not be affected by temperature extremes and shall not cause nuisance system shutdown during time of low temperature start-up (operation). The loss of charge switch and the indoor coil freeze stat shall bebypassed for 8-1/2 minutes during start-up. The system will lockout if the loss of chargeswitchorindoorcoilfreezestatopensthreetimeswithinonehourorifitdoes not reset within 8-1/2 minutes of the unit start-up. The safety circuit shall be resettable at the wall thermostat. A “Fault” light located on the controller shall indicate that a safety lockout has occurred and which condition has caused the lockout.TheLEDshallflashoncepersecondforlowpressureorindoorcoilfreeze-up lockout and twice per second for high pressure lockout.

6.4.3 Thecontrolsystemshallprovidemeans(Anti-ShortCycleTimer)topreventthecompressor from cycling at a rate that would cause damage or undue wear to the compressor. This time interval shall be adjustable from 1 minute to 8 minutes withouttheuseofextraequipmentorspecializedtools.


6.4.5 For 2, 2-1/2, 3, and 3-1/2 ton models with electric resistance heat, the control box shall also include easily accessible wiring to allow the installer to select the operation of the electric heat. The fieldwiring shall permit the electric heat tooperate when the compressor is operating as second stage heat or to prevent simultaneous operation of electric heat and the compressor. (select one) In addition, the unit shall have easily accessible wiring to allow the installer to allow the electric heat to operate during the defrost cycle or to prevent the electric heat from operating during the defrost cycle. (select one) An outdoor thermostat shall befactoryinstalledtopreventsecondstageheatfromoperatingaboveaspecifiedoutdoor temperature.


For 4 and 5 ton models with electric resistance heat, the control box shall include toggle switches for the installer to select the operation of the electric heat. The controls shall permit, if desired, the electric heat to operate when the compressor is operating, as second stage heat. In addition, the unit shall have a toggle switch to allow, if desired, the electric heat to operate during the defrost cycle. An outdoor thermostat shall be factory installed to prevent second stage heat from operating above an outdoor temperature set point.

6.5 INDOOR BLOWER AND MOTOR. The indoor blower on 2, 2-1/2, 3 & 3-1/2 ton models shall be two direct drive, centrifugal, forward curved blowers.

The indoor blower on 4 & 5 ton models shall be an electronically commutated type motor. The electronically commutated motor’s control shall be encapsulated to prevent water from reaching its electronic components. The motor shall automatically deliver constant airflowoverawiderangeofexternalstaticpressuresbychangingitstorqueandspeedwithout external sensors. The motor shall be factory programmed to slowly ramp up the speed to eliminate the abrupt change in sound when the motor starts.


6.7 OUTDOOR AIRMOVER The outdoor airmover shall be a backward curvedmotorizedimpeller capable of providing the required CFM through the outdoor coil and exterior louver.

6.8 REFRIGERATION CIRCUIT. The refrigerant metering device shall be a thermal expansion valve on the indoor (cooling) circuit and a thermal expansion valve on the outdoor(heating)circuit.Therefrigerationcircuitshallcontainaliquidfilterdryerandsuctionand liquid access valves. The refrigeration circuit shall be protected from high pressure and loss of charge by a positive lockout device.

6.9 SINGLE POINT POWER ENTRY. The Scholar QV heat pump shall have a single point power entry for line voltage.

teStInG. The heat pump shall be factory tested and inspected after receiving the prescribed 7.0 refrigerantchargeinfinalassembly.Aspartofthetotalqualityassuranceprocedure,suchtesting and inspection shall serve to ensure proper construction, including testing the sealed refrigerant system, control functions, and general operation of the heat pump.

aIr dISTrIbuTION (One must be selected)8.0 Conditioned air leaving the heat pump shall leave through a freeblow plenum. Plenums

shallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet.Or

8.0 Conditioned air leaving the heat pump shall leave through a ducted discharge plenum. Plenumsshallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet

plenUMeXtentIonS(optional)A factory supplied extension plenum constructed of the same height and with the same 9.0 finishasthecabinet,toextendtheheightoftheunittotheceiling.Exactheighttobefielddetermined.


SOuNd rEduCTION paNEl (Optional,unlessdisplayboardsareused.Seesection11)10.0 To minimize the sound in the classroom, a two-part hinged panel, provided by the

manufactureroftheheatpump,shallbefieldinstalledtothefrontoftheScholarQVheatpump.Thesteelpanelsshallbethesamecolorandfinishasonthecabinetoftheheatpump.

dISplay bOardS (optional)note:thedisplayboardsareattached to thesound reductionpanels. If thedisplayboardsaredesired,thesoundreductionpanelsmustbeused.

11.0 MAGNETIC DRY ERASE DISPLAY BOARD. A magnetic dry erase display board shall be furnished and installed by the contractor. The writing surface shall be P3 ceramicsteel on 28gaugesteellaminatedto1/2”lowdensityfiberboardwithanaluminumfoilbacking.The board shall have an aluminum frame around the perimeter. Or

11.1 PLASTICIZED CORK STICK BOARD. A tan colored stick board shall be furnished and installedbythecontractor.Theboardshallbeconstructedofplasticizedcorkmaterialwith a burlap backing laminated to 7/32” tempered hardboard. The board shall have an aluminum frame around the perimeter.

VErTICal TrIm paNElS (optional)Sheet metal trim panels, of the same color as the Scholar QV heat pump’s cabinet, shall 12.0 be installed on both the left and right sides of the heat pump. The trim panels provide a finished appearance and cover any space between the rear of the heat pump andthe interior wall. Trim panels shall extend the full height of the heat pump and plenum andshallbe_____incheswide.(note:trimpanelsareonlyavailablein1”widthincrements.)

BaSeStanD(optional)13.0 TheScholarQVheatpumpshallbeinstalledontopofa____inch(4”,5”,6”or8”

high, select one) high base stand. The base stand shall be of the dimensions as the base of the heat pump and shall be designed to support the heat pump. The base stand shall be the same color as the cabinet of the Scholar QV heat pump.

OuTdOOr lOuVErS 14.0 The outdoor louver shall be constructed of 6063-T5 alloyed aluminum extrusion with

42° blade angles with a color selected by the architect or engineer. The louvers shall be designed not to hinder the intake or egress of the condenser air and the outside ventilation air and to separate the air streams. The spacing and the design of the blades shallminimizethepossibilityofwaterintrusion.

14.1 Thefinishofthelouvershallbe:(selectoneofthefollowing)


A TRINAR®finishthatmeetsorexceedstherequirementsofAAMA65.2andcontainsatleast 70% Kynar®fluoropolymer.(TheTrinarfinishprovidesextraprotectionincoastalenvironments.)Or

A TRINAR®finishwithacleartopcoatthatmeetsorexceedstherequirementsofAAMA65.2 and contains at least 70% Kynar®fluoropolymerfinish.(TheTrinarfinishwithtopcoat provides extra protection in coastal and corrosive environments and is the most durablefinish).Or

Ananodizedfinish.Theanodizedfinishshallbe:(selectoneofthefollowing)clear, lite bronze,mediumbronze,darkbronzeorblack.




15.0 Heat pump thermostat shall be a digital, seven day, two occupied and two unoccupied periods for each day of the week programmable thermostat. Three stage heat/three stagecool.Manualorauto-changeover(selectable).Fan:AutoorOn.(selectable).Tenyear retention of program settings and 48 hour clock and time settings on power loss. Adjustable maximum set point for heating and minimum set point for cooling. Adjustable temperature differential. Keypad lockout. Status LED’s. °F or °C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Or


15.0 Heat pump thermostat shall be a Mar5000 people sensing, automatic setback digital thermostat. Using an occupancy sensor, the thermostat shall have the capability to determine whether the room is occupied or vacant. When people are present, the temperature is automatically maintained. When vacant, the thermostat automatically shall reduce the run time of the heat pump and the ventilation cycle to save energy. The thermostat shall have a dedicated relay to control the ventilation cycle. The relay may receive an input from an occupancy sensor, a light sensor or other external device. The Mar5000 thermostat shall continually update the occupancy pattern to ensure that the setpointtemperatureisachievedwithinaspecifictimewhenanoccupantreturnstotheroom. Set points shall be kept in memory for up to 3-1/2 weeks in the event of a power loss. The thermostat shall have an integral, solid state humidity/dew point sensor. This sensor shall activate the heat pump to limit humidity in the classroom. The thermostat shall be capable of recording occupancy and HVAC usage patterns for management reports.ThethermostatshallbeULlisted,FCCcertifiedandEnergyStarqualified.

CONTraCTOr INSTallaTION16.0 The cabinet with the outdoor louver shall be installed and leveled in accordance with the

written instructions provided by Marvair®.

16.1 An external condensate line shall be connected to the Scholar heat pump. The condensate line exit shall be (selectone)at the rear of the heat pump or through the base of the heat pump.

16.2 HotWatercoilplenum(ifspecified),supplyandreturnpipingandcontrolvalvesshallbeinstalledinaccordancewiththedrawingsandspecifications.

16.3 Line and control voltage connections shall be made to the appropriate terminals within the Scholar QV heat pump.

16.4 All external control device shall be wired to the appropriate terminals within the Scholar QV heat pump.


Marvair® is committed to continued product improvement, please consult Marvair’s website at www.marvair.com for latest product literature. Specifications subject to change without notice. Unit must be installed in accordance with installation instructions. Thermostats can contain mercury that is hazardous and must be disposed of properly. A complete warranty statement can be found in the Installation/Operation Manual, on our website or by contacting Marvair at 229-273-3636.

Scholar Combo EDM 2/2011 rev. 3 Appendix K -1 HVAC Equipment

appendixK–engineeringSpecificationGuides

SCHOlar qV aIr CONdITIONErSModelsVaca24-30-36-40-49-60(1-stagecompressor)and

VacSa36-49-60(2-stagecompressor)ENgINEErINg SpECIfICaTION guIdE fOr aIr TO aIr

SElf CONTaINEd flOOr STaNdINg aIr CONdITIONErS

gENEral 1.0 Furnish and install a Scholar QV air conditioner, Model VAC *1A**2 AC *3 – ***4 *5

self-contained,floorstanding,through-the-wall,air-to-airairconditionermanufacturedby Marvair®.(SeemodelIDintheScholarQVproductDataSheetforidentificationofoptions.) The air conditioner shall be completely factory assembled and tested, and shall include compressor, indoor and outdoor coils, fans and motors as required, prewired controls, interconnecting refrigerant tubing, wiring, HACR breaker disconnects, built-in fresh air ventilation feature, and other necessary components mounted in a corrosion resistant cabinet. The system shall be shipped from the factory withafulloperatingR-410Arefrigerantandoilcharge.Allfieldwiringshallbeinaccordance with the National Electric Code and local codes.

The air conditioner shall be capable of accepting factory supplied optional plenums providing freeblow conditioned air into the space, or ducted distribution. Further, air conditioner can be equipped with factory supplied optional electric resistance heat or hot water heat accessories.


2Nominal cooling capacity in BTUH. Example: 36 =36,000 BTUH3PowerSupplydesignator.A=208/230v.1ø;C=208/230v.3ø;D=460v.3ø4 Electric strip heat in kW. Example: 100 = 10 kilowatts of electric heat.


apprOValS 2.0 EachairconditionershallbecertifiedinaccordancewithARIStandard390and

listed by ETL to the current editions of UL standard 1995 and CAN/CSA-C22.2 No. 236-95 for safety. The manufacturer of the air conditioner shall be ISO 9001-2000 certified.

pErfOrmaNCE 3.0 COOLING. When rated at ARI Standard 390 with no outside air, the total net

cooling capacity of the air conditioner shall be BTUH or greater, and sensible capacity shall be BTUH or greater at conditions of: CFM evaporator entering air of 80°F dry bulb, 67°F wet bulb and condenser entering air temperature of 95°F dry bulb. Models VACA with single stage compressors shall have an EER of or higher, at this condition. Models VACSA with two stagecompressorsshallhaveanIntegratedPartLoadValue(IPLV)of_________orhigher, at this condition.

HEATING. 1.1.1 (One must be selected)

3.1.2 NO HEAT. The Scholar QV air conditioner shall have no electric resistance or hot water heat. Or


3.1.2 ELECTRIC HEAT. The air conditioner shall have a factory supplied electric resistanceheater,designedspecificallyforapplicationtotheScholarQVairconditioner. The Scholar QV air conditioner shall have electric resistance heat of kW(5,7.5,10,or15kW, select one).Theheaterelements shall be constructed of nichrome wire and protected by a bimetal thermostat and a thermal cut-out. Or

3.1.2 HOT WATER HEAT. The air conditioner shall have a complete factory assembled hotwaterheatingcoilandplenumassembly,equippedwithafreezeprotectionthermostat(24volt).Theheatingcoilshallbemanufacturedofseamlesscoppertubingwithaluminumfinsmechanicallybondedtothetubing.Theplenumshallbefullyinsulatedwithheatreflecting,foilfacedthermal/acousticalinsulation. Supplemental heat of BTUH of hot water entering at °Fandflowingatarateof GPM with inlet air at CFM and °F entering temperature shall be provided to satisfy heat loss at winter design conditions.

frESH aIr VENTIlaTION CONfIguraTIONS (oneoftheVentilationoptionsmustbeselected)

4.0 FIXEDPOSITIONMANUALDAMPER,VentilationConfiguration“N”.Freshairventilation with pressure relief shall be provided at the rate of CFM (0to450cfmbutnottoexceed40%oftheratedairflow)byamanualdamper.After the installation of the Scholar QV air conditioner in the classroom, the damper shallbeadjustedforrequiredrateofventilation.Configurationshallincludeafilterfor the incoming ventilation air, a ventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 TWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“B”.Freshairventilation with pressure relief shall be provided at the rate of CFM (0to450cfmbutnottoexceed40%oftheratedairflow)byafactoryinstalledmotorized,twopositiondamper.AftertheinstallationoftheScholarQV air conditioner in the classroom, the damper shall be adjusted for required rateofventilation.Thefactoryinstalledmotorizeddampershalloperateon (24,120,or240V - select one)toregulatefreshairventilationinresponsetoan energy management system or other type of control, external to the Scholar QV airconditioner.Configurationshallincludeafilterfortheincomingventilationair,a ventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 POWERVENTWITHTWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“J”. Fresh air ventilation with pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)for the intake air and CFM(0to450cfm)fortheexhaustairbyafactoryinstalledmotorized,twopositiondamper.AftertheinstallationoftheScholar QV air conditioner in the classroom, the damper shall be adjusted for requiredrateofventilation.Thefactoryinstalledmotorizeddampershalloperateon (24,120,or240V-select one)toregulatefreshairventilationin response to an energy management system or other type of control, external to theScholarQVairconditioner.Configurationshallincludeafilterfortheincomingventilation air, a ventilation intake air blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor. (anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedto


controltheexhaustairmotor.thisallowsthetwoventilationmotorstobeindependentlycontrolledandpositivepressurizationoftheclassroom. Or

4.0 GreenWheel® Energy Recovery Ventilator,VentilationConfiguration“H”.Theair conditioner shall have a GreenWheel® energy recovery ventilator that simultaneously exhausts indoor air at the rate of CFM for the exhaust air and brings in CFM on the intake air, with a maximum of450CFMandanefficiencyofupto75%.AftertheinstallationoftheScholarQV air conditioner in the classroom, the damper shall be adjusted for the required rateofventilation.Configurationshallincludeafilterfortheincomingventilationair,afilterfortheexhaustventilationair,aventilationintakeairblowermotor,a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor.(anoptionalfactoryinstalledsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobeindependentlycontrolledandpositivepressurizationoftheclassroom.)

4.1 Wheel Media: The enthalpy wheel shall be constructed of corrugated syntheticfibrousmedia,withadesiccantintimatelyboundanduniformlyand permanently dispersed throughout the matrix structure of the media. Rotorswithdesiccantscoated,bonded,orsynthesizedontothemediaarenotacceptable due to delamination or erosion of the desiccant material. Media shall be synthetic to provide corrosion resistance and resistance against attack from laboratory chemicals present in pharmaceutical, hospital, etc. environments as well as attack from external outdoor air conditions. Coated aluminumisnotacceptable.Faceflatnessofthewheelshallbemaximized(±0.032in)inordertominimizewearoninnersealsurfacesandtominimizecrossleakage.Rotorshallbeconstructedofalternatinglayersofflatandcorrugated media. Wheel layers should be uniform in construction forming uniformaperturesizesforairflow.Wheelconstructionshallbeflutedorformed honeycomb geometry so as to eliminate internal wheel bypass. Wheel layersthatcanbeseparatedorspreadapartbyairflowareunacceptabledueto the possibility of channeling and performance degradation. The media shall be in accordance with UL guidelines.




4.5 Wheel Cassette: Cassettes shall be fabricated of 18 gauge reinforced galvanizedsteel.Bearingsshallbeinboard,zeromaintenance,permanentlysealed ball bearings. Drive systems shall consist of fractional horsepower A.C. drive motors with polyurethane drive belts.



HOT gaS rEHEaT fOr dEHumIdIfICaTION (Optional,selectifdesired)note:WhenoutsideventilationairisbroughtintotheclassroombytheScholarunit,foroptimumperformancehotgasreheatshouldbeusedinconjunctionwiththeGreenWheel®erV.Whenusedwithamotorizeddamper,hotgasreheatalonemaynotmaintainsatisfactorycontrolofthehumidityintheclassroomoveralloutdoorconditions.HotGasreheatshouldnotbeusedwithScholarunitswithamanualdamper

HOT GAS REHEAT DEHUMIDIFICATION. The Scholar QV air conditioner shall 5.0 havehotgasreheatcoiltoallowdehumidificationthroughcontinuedcoolingwith discharge air reheated to avoid over cooling the classroom. The hot gas dehumidificationoptioncanbeusedwithelectricorhotwaterheat.Thehotgasreheat(HGR)coilshallbeconstructedofaluminumplatefinmechanicallybondedto seamless copper tubes. The operation of the HGR shall be controlled by a three-wayheatreclaimvalve.TheHGRcoilshallbesizedtoprovideaheatingcapacityapproximately equal to the sensible capacity of the air conditioner.

5.1 Digital Humidity Controller. The hot gas reheat function shall be controlled by a programmable humidity controller. Controller shall be capable of setting the time ofdayfordehumidificationfunction.Controllershallhavepermanentmemoryretentionofsetpointsandbecapableoffieldcalibration.Controllershallhavefieldselectablehigh&lowdehumidificationsetpoints.Outdoortemperatureandhumidity sensor shall be included. Controller shall display temperature in either ºF or ºC.

dESIgN fEaTurES & COmpONENTS 6.0 AIR FILTER. The air conditioner shall accept a (1”standardor2”

optional, select one)filamentspunglassairfilter,mountedinternallyandfactorysupplied, and located behind the return air grille.

6.1 CABINET. The exterior front and side panels of the cabinet of the air conditioner shall be constructed of (select one: 16or20)gaugegalvanizedsteelwitha_____(select one: greyorbeige)polyesterfinish.Thefinishshallbe highly resistant to abrasion, metal marking, staining, pressure mottling and require minimal maintenance. Interior surface of cabinet shall be lined with a flexibleresilientacousticalandthermalinsulationcomposedofglassfiberswithadurable black coating with high density skin and light density core to enhance sound absorption at high and low frequencies. The insulation shall withstand damage from mechanical abrasion and from air erosion during service. Thickness of insulation shall be 1-1/2”. All outside cabinet panels shall be fastened with a tamper-resistant Torxhead™ sheet metal screws.


CONDENSATE REMOVAL. The condensate removal shall have two exits from the 6.3 air conditioner- through the bottom or through the lower back panel. The air conditioner shall have a factory assembled and supplied trapping system internal to the unit, eliminating the requirement for an external trap in the condensate drain system.


6.3.1 CONDENSATE PAN & DRAIN LINE FREEZE PROTECTION (optional,butrecommendedinareassubjecttolowoutdoorambients). The condensate pan shall have a factory installed tubular immersion type heater with built-in resistance to shock, corrosion, vibration and temperature extremes. The condensate drain line shall be factory wrapped with a self-regulating heating cabledesignedtopreventfreezingofthecondensate.

6.4 CONTROLS. The internal circuit shall consist of a current limiting type transformer to generate 24 VAC, switching devices to operate the compressor, indoor fan motor, outdoorairmovers,optionalelectricalheater(s);andoptionalmotorizeddamper,optional GreenWheel® energy recovery ventilator, and optional hot gas reheat. The control circuit shall incorporate a fan speed control to allow adjustment of the indoor air circulating blower.

6.4.1 The Scholar QV air conditioner shall have a factory installed microprocessor with LED lights to show operations status and provide assistance with diagnosis if troubleshooting is ever required. The internal control shall be fieldprogrammablemicroprocessorbasedincorporatingopticallyisolatedthermostat connections as well as galvanically isolated dry contact outputs. All wiring external to the control box and directly interfaced to the control system shall be no greater than 24 VAC.

6.4.2 The control system shall incorporate a safety circuit to render the refrigeration system(compressorandoutdoorfanmotor)inoperativewheneverthelimitsof high pressure or loss of refrigerant switch are exceeded or the indoor coilfreezesup.Thissafetycircuitshallnotbeaffectedbytemperatureextremes and shall not cause nuisance system shutdown during time of low temperaturestart-up(operation).Thelossofchargeswitchandtheindoorcoilfreezestatshallbebypassedfor8-1/2minutesduringstart-up.Thesystemwilllockoutifthelossofchargeswitchorindoorcoilfreezestatopensthree times within one hour or if it does not reset within 8-1/2 minutes of the unit start-up. The safety circuit shall be resettable at the wall thermostat. A “Fault” light located on the controller shall indicate that a safety lockout has occurredandwhichconditionhascausedthelockout.TheLEDshallflashoncepersecondforlowpressureorindoorcoilfreeze-uplockoutandtwiceper second for high pressure lockout.

6.4.3Thecontrolsystemshallprovidemeans(Anti-ShortCycleTimer)topreventthe compressor from cycling at a rate that would cause damage or undue wear to the compressor. This time interval shall be adjustable from 1 minute to8minuteswithouttheuseofextraequipmentorspecializedtools.


6.5 INDOOR BLOWER AND MOTOR.

The indoor blower shall be an electronically commutated type motor. The electronically commutated motor’s control shall be encapsulated to prevent water from reaching its electronic components. The motor shall automatically deliver constantairflowoverawiderangeofexternalstaticpressuresbychangingits


torque and speed without external sensors. The motor shall be factory programmed to slowly ramp up the speed to eliminate the abrupt change in sound when the motor starts.


6.7 OUTDOORAIRMOVERTheoutdoorairmovershallbeabackwardcurvedmotorizedimpeller capable of providing the required CFM through the outdoor coil and exterior louver.

6.8 REFRIGERATION CIRCUIT. The Scholar QV air conditioner shall have a thermal expansion valve metering device. The refrigeration circuit shall contain a liquid filterdryerandsuctionandliquidaccessvalves.Therefrigerationcircuitshallbeprotected from high pressure and loss of charge by a positive lockout device.

6.9 SINGLE POINT POWER ENTRY. The Scholar QV air conditioner shall have a single point power entry for line voltage.

teStInG. The air conditioner shall be factory tested and inspected after receiving the 7.0 prescribedrefrigerantchargeinfinalassembly.Aspartofthetotalqualityassurance procedure, such testing and inspection shall serve to ensure proper construction, including testing the sealed refrigerant system, control functions, and general operation of the air conditioner.

aIr dISTrIbuTION (One must be selected)8.0 Conditioned air leaving the air conditioner shall leave through a freeblow plenum.


8.0 Conditioned air leaving the air conditioner shall leave through a ducted discharge plenum.Plenumsshallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures- Cabinet

plenUMeXtentIonS(optional)A factory supplied extension plenum constructed of the same height and with the 9.0 samefinishasthecabinet,toextendtheheightoftheunittotheceiling.Exactheighttobefielddetermined.

SOuNd rEduCTION paNEl(Optional,unlessdisplayboardsareused.Seesection11)10.0 Tominimizethesoundintheclassroom,atwo-parthingedpanel,providedbythe

manufactureroftheairconditioner,shallbefieldinstalledtothefrontoftheScholarQVairconditioner.Thesteelpanelsshallbethesamecolorandfinishasonthecabinet of the air conditioner.

dISplay bOardS (optional,selectoneifdesired)note:thedisplayboardsareattachedtothesoundreductionpanels.Ifthedisplayboardsaredesired,thesoundreductionpanelsmustbeused.

11.0 MAGNETIC DRY ERASE DISPLAY BOARD. A magnetic dry erase display board shall be furnished and installed by the contractor. The writing surface shall be P3ceramicsteelon28gaugesteellaminatedto1/2”lowdensityfiberboardwith


an aluminum foil backing. The board shall have an aluminum frame around the perimeter.

11.1 PLASTICIZED CORK STICK BOARD. A tan colored stick board shall be furnished andinstalledbythecontractor.Theboardshallbeconstructedofplasticizedcorkmaterial with a burlap backing laminated to 7/32” tempered hardboard. The board shall have an aluminum frame around the perimeter.

VErTICal TrIm paNElS (optional)Sheet metal trim panels, of the same color as the Scholar QV air conditioner’s 12.0 cabinet, shall be installed on both the left and right sides of the air conditioner. The trimpanelsprovideafinishedappearanceandcoveranyspacebetweentherearofthe air conditioner and the interior wall. Trim panels shall extend the full height of theairconditionerandplenumandshallbe_____incheswide.

BaSeStanD(optional)13.0TheScholarQVairconditionershallbeinstalledontopofa____inch(4”, 5”,

6”or8”high, select one) high base stand. The base stand shall be of the dimensions as the base of the air conditioner and shall be designed to support the air conditioner. The base stand shall be the same color as the cabinet of the Scholar QV air conditioner.


42° blade angles with a color selected by the architect or engineer. The louvers shall be designed not to hinder the intake or egress of the condenser air and the outside ventilation air and to separate the air streams. The spacing and the design of the bladesshallminimizethepossibilityofwaterintrusion.

14.1 Thefinishofthelouvershallbe:(selectoneofthefollowing)

AbakedenamelfinishthatmeetsorexceedstherequirementsofAAMA2604-98and contains at least 50% Kynar®fluoropolymer.Or

A TRINAR®finishthatmeetsorexceedstherequirementsofAAMA65.2andcontains at least 70% Kynar®fluoropolymer.(TheTrinarfinishprovidesextraprotectionincoastalenvironments.)OrA TRINAR®finishwithacleartopcoatthatmeetsorexceedstherequirementsof AAMA 65.2 and contains at least 70% Kynar®fluoropolymerfinish.(TheTrinarfinishwithtopcoatprovidesextraprotectionincoastalandcorrosiveenvironmentsandisthemostdurablefinish).Or

Ananodizedfinish.Theanodizedfinishshallbe:(selectoneofthefollowing)clear,litebronze,mediumbronze,darkbronzeorblack.

tHerMoStat(Selectone)note:Unitswithtwostagecompressorsrequirea2-stagecoolthermostat.15.0 Air conditioner thermostat shall be a digital, 7 day, 5-2 and 5-1-1 day

programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Or

15.0 Air conditioner thermostat shall be a digital, seven day, two occupied and two unoccupied periods for each day of the week programmable thermostat. Three


stageheat/threestagecool.Manualorauto-changeover(selectable).Fan:AutoorOn.(selectable).Tenyearretentionofprogramsettingsand48hourclockandtimesettings on power loss. Adjustable maximum set point for heating and minimum set point for cooling. Adjustable temperature differential. Keypad lockout. Status LED’s. °F or °C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Or

15.0 Air conditioner thermostat shall be a digital, non-programmable thermostat. Two stage heat/Two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. °F or °C selectable. Or

15.0 Air conditioner thermostat shall be a Mar5000 people sensing, automatic setback digital thermostat. Using an occupancy sensor, the thermostat shall have the capability to determine whether the room is occupied or vacant. When people are present, the temperature is automatically maintained. When vacant, the thermostat automatically shall reduce the run time of the air conditioner and the ventilation cycle to save energy. The thermostat shall have a dedicated relay to control the ventilation cycle. The relay may receive an input from an occupancy sensor, a light sensor or other external device. The Mar5000 thermostat shall continually update the occupancy pattern to ensure that the set point temperature is achieved within aspecifictimewhenanoccupantreturnstotheroom.Setpointsshallbekeptinmemory for up to 3-1/2 weeks in the event of a power loss. The thermostat shall have an integral, solid state humidity/dew point sensor. This sensor shall activate the air conditioner to limit humidity in the classroom. The thermostat shall be capable of recording occupancy and HVAC usage patterns for management reports. ThethermostatshallbeULlisted,FCCcertifiedandEnergyStarqualified.



16.1 An external condensate line shall be connected to the Scholar air conditioner. The condensate line exit shall be (selectone)at the rear of the air conditioner or through the base of the air conditioner.

16.2 HotWatercoilplenum(ifspecified),supplyandreturnpipingandcontrolvalvesshallbeinstalledinaccordancewiththedrawingsandspecifications.

16.3 Line and control voltage connections shall be made to the appropriate terminals within the Scholar QV air conditioner.

16.4 All external control devices shall be wired to the appropriate terminals within the Scholar QV air conditioner.


Scholar Combo EDM 2/2011 rev. 3 Appendix L -1 HVAC Equipment

appendixl–engineeringSpecificationGuides

gEOSCHOlar™ qV HEaT pumpSModelsVWca24-30-36-40-48-60(1-stagecompressor)

andVWcSa36-40-48-60(2-stagecompressor)

ENgINEErINg SpECIfICaTION guIdE fOr aIr TO WaTEr SElf CONTaINEd flOOr STaNdINg HEaT pumpS

gENEral 1.0 Furnish and install a GeoScholar™ QV Heat Pump, Model VWC *1A**2 HP *3 – ***4 *5 self-

contained, floor standing, through-the-wall, water-to-air heat pump manufactured byMarvair®. (SeemodelIDintheproductDataSheetforidentificationofoptions). The heat pump shall be completely factory assembled and tested, and shall include compressor, indoor coil, indoor blower, water to refrigerant heat exchanger and motors as required, prewired controls, interconnecting refrigerant tubing, wiring, HACR breaker disconnects, built-in fresh air ventilation feature, and other necessary components mounted in a corrosion resistant cabinet. The system shall be shipped from the factory with a full operating R-410A refrigerantandoilcharge.AllfieldwiringshallbeinaccordancewiththeNationalElectricCode and local codes.

The heat pump shall be capable of accepting factory supplied optional plenums providing freeblow conditioned air into the space, or ducted distribution. Further, heat pump can be equipped with factory supplied optional electric resistance heat and accessories.

Double hinged front doors shall provide access to the primary components and controls including the water to refrigerant heat exchanger, the compressor and the intake and exhaust air movers for the outside air ventilation systems.

1S=2-stage compressor

2Nominal cooling capacity in BTUH. Example: 36 =36,000 BTUH3PowerSupplydesignator.A=208/230v.1ø;C=208/230v.3ø;D=460v.3ø4 Electric strip heat in kW. Example: 100 = 10 kilowatts of electric heat. 090 = 9 kw of heat.


apprOValS 2.0 EachheatpumpshallbecertifiedinaccordancewithISOStandard13256-1-98andlisted

by ETL to the current editions of UL standard 1995 and CAN/CSA-C22.2 No. 236-95 for safety.ThemanufactureroftheheatpumpshallbeISO9001-2000certified.

pErfOrmaNCE 3.0 COOLING. When rated at ISO Standard 13256-1-98 with no outside air, the total net

cooling capacity of the unit shall be BTUH or greater at conditions of: CFM of evaporator entering air at 80°F dry bulb, 67°F wet bulb and water entering the condenser at 77°F. Equipment must have an EER of BTUH/Watt or higher at this condition.

HEATING. When rated at ISO Standard 13256-1-98 with no outside air, 70°F dry bulb 3.1 air entering the indoor coil and entering water temperature of 55°F, the heat pump shall have a minimum heating capacity of BTUH and a minimum COP of . Supplemental heat shall/shall not (select one) be provided tosatisfy heat loss at winter design conditions.


SUPPLEMENTAL HEAT (One must be selected)3.1.2 NO HEAT. The GeoScholar QV heat pump shall have no electric resistance heat.

Or

3.1.2 ELECTRIC HEAT. The heat pump shall have a factory supplied electric resistance heater,designedspecificallyforapplicationtotheGeoScholarQVheatpump.TheGeoScholar QV heat pump shall have electric resistance heat of kW (5,7.5,10,or15kW, select one).Theheaterelementsshallbeconstructedofnichrome wire and protected by a bimetal thermostat and a thermal cut-out.

frESH aIr VENTIlaTION CONfIguraTIONS (One must be selected)4.0 FIXEDPOSITIONMANUALDAMPER,VentilationConfiguration“N”.Freshairventilation

with pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)byamanualdamper.AftertheinstallationoftheGeoScholar QV heat pump in the classroom, the damper shall be adjusted for required rateofventilation.Configurationshallincludeafilterfortheincomingventilationair,aventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 TWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“B”.Freshairventilationwith pressure relief shall be provided at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)byafactoryinstalledmotorized,twopositiondamper. After the installation of the GeoScholar QV heat pump in the classroom, the dampershallbeadjustedforrequiredrateofventilation.Thefactoryinstalledmotorizeddamper shall operate on (24,120,or240V - select one)toregulatefresh air ventilation in response to an energy management system or other type of control,externaltotheGeoScholarQVheatpump.Configurationshallincludeafilterforthe incoming ventilation air, a ventilation intake blower motor and a speed controller for the ventilation intake blower motor. Or

4.0 POWERVENTWITHTWOPOSITIONMOTORIZEDDAMPER,VentilationConfiguration“J”.Fresh air ventilation with pressure relief shall be provided at the rate of CFM (0 to 450 cfm but not to exceed 40% of the rated air flow) for the intake air and CFM(0 to450cfm) for theexhaustairbya factory installedmotorized, twopositiondamper. After the installation of the GeoScholar QV heat pump in the classroom, the dampershallbeadjustedforrequiredrateofventilation.Thefactoryinstalledmotorizeddamper shall operate on (24,120,or240V-select one) to regulatefresh air ventilation in response to an energy management system or other type of control,externaltotheGeoScholarQVheatpump.Configurationshallincludeafilterforthe incoming ventilation air, a ventilation intake air blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller shall control both the incoming air blower motor and the exhaust air blower motor. (anoptionalsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobe independentlycontrolledandpositivepressurizationoftheclassroom.)or

4.0 GREENWHEEL® ENERGY RECOVERY VENTILATOR,VentilationConfiguration“H”.Theheatpump shall have a GreenWheel® energy recovery ventilator that simultaneously brings in outdoor air at the rate of CFM(0to450cfmbutnottoexceed40%oftheratedairflow)andexhausts CFM of the classroom air, up to a maximum of 450CFMwith an efficiency of up to 75%.After the installation of theGeoScholarQV heat pump in the classroom, the damper shall be adjusted for the required rate of ventilation.Configurationshallincludeafilterfortheincomingventilationair,afilterforthe exhaust ventilation air, a ventilation intake air blower motor, a ventilation exhaust air blower motor and a speed controller for the ventilation motors. The speed controller


shall control both the incoming air blower motor and the exhaust air blower motor. (anoptionalsecondfanspeedcontrollermaybespecifiedtocontroltheexhaustairmotor.thisallowsthetwoventilationmotorstobe independentlycontrolledandpositivepressurizationoftheclassroom.)

4.1 WheelMedia:Theenthalpywheelshallbeconstructedofcorrugatedsyntheticfibrousmedia, with a desiccant intimately bound and uniformly and permanently dispersed throughout the matrix structure of the media. Rotors with desiccants coated, bonded, orsynthesizedontothemediaarenotacceptableduetodelaminationorerosionofthe desiccant material. Media shall be synthetic to provide corrosion resistance and resistance against attack from laboratory chemicals present in pharmaceutical, hospital, etc. environments as well as attack from external outdoor air conditions. Coatedaluminumisnotacceptable.Faceflatnessofthewheelshallbemaximized(±0.032in)inordertominimizewearoninnersealsurfacesandtominimizecrossleakage. Rotor shall be constructed of alternating layers of flat and corrugatedmedia. Wheel layers should be uniform in construction forming uniform aperture sizesforairflow.Wheelconstructionshallbeflutedorformedhoneycombgeometryso as to eliminate internal wheel bypass. Wheel layers that can be separated or spreadapartbyairflowareunacceptableduetothepossibilityofchannelingandperformance degradation. The media shall be in accordance with UL guidelines.

4.2 DesiccantMaterial:Thedesiccantmaterialshallbea4Amolecularsievetominimizecross contamination.

4.3 Wheel Media Support System: The wheel frames shall consist of evenly spaced galvanized steel spokes, a stainless steel outer band and rigid center hub. Thewheel construction should allow for post fabrication wheel alignment.


4.5 WheelCassette: Cassettesshallbe fabricatedof18gaugereinforcedgalvanizedsteel. Bearings shall be inboard, zero maintenance, permanently sealed ballbearings. Drive systems shall consist of fractional horsepower A.C. drive motors with polyurethane drive belts.

4.6 Certification: Theenergyrecoverywheelandthecassetteshallbetestedandcertifiedaccording to ARI Standard 1060.

HOT gaS rEHEaT fOr dEHumIdIfICaTION (Optional, select ifdesired)note:WhenoutsideventilationairisbroughtintotheclassroombytheGeoScholarunit,foroptimumperformancehotgasreheatshouldbeusedinconjunctionwiththeGreenWheel®erV.Whenusedwithamotorizeddamper,hotgasreheatalonemaynotmaintainsatisfactorycontrolofthehumidityintheclassroomoveralloutdoorconditions.HotGasreheatshouldnotbeusedwithGeoScholarunitswithamanualdamper.

HOT GAS REHEAT DEHUMIDIFICATION. The GeoScholar QV heat pump shall have hot 5.0 gas reheatcoil toallowdehumidification throughcontinuedcoolingwithdischargeairreheatedtoavoidovercoolingtheclassroom.Thehotgasdehumidificationoptioncanbeusedwithelectricheat.Thehotgasreheat(HGR)coilshallbeconstructedofaluminumplatefinmechanicallybondedtoseamlesscoppertubes.TheoperationoftheHGRshallbecontrolledbyathree-wayheatreclaimvalve.TheHGRcoilshallbesizedtoprovideaheating capacity approximately equal to the sensible capacity of the heat pump.

5.1 Digital Humidity Controller. The hot gas reheat function shall be controlled by a programmable humidity controller. Controller shall be capable of setting the time of day fordehumidificationfunction.Controllershallhavepermanentmemoryretentionofset


pointsandbecapableoffieldcalibration.Controllershallhavefieldselectablehigh&lowdehumidificationsetpoints.Outdoortemperatureandhumiditysensorshallbeincluded.Controller shall display temperature in either ºF or ºC.

dESIgN fEaTurES & COmpONENTS 6.0 AIR FILTER. The heat pump shall accept a (1”standardor2”optional,

select one)filamentspunglassairfilter,mountedinternallyandfactorysupplied,andlocated behind the return air grille.

6.1 CABINET. The exterior cabinet of the heat pump shall be constructed of (select one: 16 or 20) gauge galvanized steel with a _____ (select one: grey or beige)polyesterfinish.Thefinishshallbehighlyresistanttoabrasion,metalmarking,staining,pressure mottling and require minimal maintenance. Interior surface of cabinet shall be linedwithaflexibleresilientacousticalandthermalinsulationcomposedofglassfiberswith a durable black coating with high density skin and light density core to enhance sound absorption at high and low frequencies. The insulation shall withstand damage from mechanical abrasion and from air erosion during service. Thickness of insulation shall be 1-1/2”. All outside cabinet panels shall be fastened with a tamper-resistant Torxhead® sheet metal screws. Access to electrical breaker for heat pump power supply shall be through a single key lock cover on the indoor front panel of the unit.


CONDENSATE REMOVAL. The condensate removal shall have two exits from the heat 6.3 pump- through the bottom or through the lower back panel. The heat pump shall have a factory assembled and supplied trapping system internal to the unit, eliminating the requirement for an external trap in the condensate drain system.

6.4 CONTROLS. The internal circuit shall consist of a current limiting type transformer to generate 24 VAC, switching devices to operate the compressor, indoor fan motor, optional electrical heater(s);andoptionalmotorizeddamper,optionalGreenWheel® energy recovery ventilator, and optional hot gas reheat. The control circuit shall incorporate a fan speed control to allow adjustment of the indoor air blower motor.

6.4.1 The GeoScholar QV heat pump shall have a factory installed microprocessor with LED lights to show operations status and provide assistance with diagnosis if troubleshootingiseverrequired.Theinternalcontrolshallbefieldprogrammablemicroprocessor based incorporating optically isolated thermostat connections as well as galvanically isolated dry contact outputs. All wiring external to the control box and directly interfaced to the control system shall be no greater than 24 VAC.

6.4.2 The control system shall incorporate a safety circuit to render the refrigeration system(compressor)inoperativewheneverthelimitsofhighpressureorlossofrefrigerantswitchareexceededorthe indoorcoil freezesup.Thissafetycircuitshall not be affected by temperature extremes and shall not cause nuisance system shutdownduringtimeoflowtemperaturestart-up(operation).Thelossofchargeswitchandtheindoorcoilfreezestatshallbebypassedfor8-1/2minutesduringstart-up.Thesystemwilllockoutifthelossofchargeswitchorindoorcoilfreezestat opens three times within one hour or if it does not reset within 8-1/2 minutes of the unit start-up. The safety circuit shall be resettable at the wall thermostat. A “Fault” light located on the controller shall indicate that a safety lockout has


occurredandwhichconditionhascausedthelockout.TheLEDshallflashoncepersecondforlowpressureorindoorcoilfreeze-uplockoutandtwicepersecondforhigh pressure lockout.

6.4.3 Thecontrolsystemshallprovidemeans(Anti-ShortCycleTimer)topreventthecompressor from cycling at a rate that would cause damage or undue wear to the compressor. This time interval shall be adjustable from 1 minute to 8 minutes withouttheuseofextraequipmentorspecializedtools.


6.4.5 The control box shall also include a switch for operation on either a water or non-freezesolutionsystem.AtemperaturesensorinsidetheGeoScholarQVshallbefactory installed. If the switch is in the “WATER” position and the temperature of the loop water is 32°F or less, the compressor shall be turned off, but the indoor blower shall continue to operate. If the Switch is in the “ANTI-FREEZE” position, the signal from the temperature sensor shall be ignored.

6.5 INDOOR BLOWER AND MOTOR. The indoor blower shall be two direct drive, centrifugal, forward curved blowers on 2, 2½, 3 & 3½ units. On 4 & 5 ton units, the indoor blower motor shall be an electronically commutated type motor. The motor shall automatically deliverconstantairflowoverawiderangeofexternalstaticpressuresbychangingitstorque and speed without external sensors. The motor shall be factory programmed to slowly ramp up the speed to eliminate the abrupt change in sound when the motor starts.

6.6 INDOORCOILS.Theindoorcoilshallbeconstructedoflancedaluminumfinsmechanicallybondedtorifled,seamlesscoppertubes.

6.7 WATER TO REFRIGERANT HEAT ExCHANGER. The water to refrigerant heat exchanger shall be a coaxial, tube in tube design. The water tubing shall be constructed of cupro-nickel tubing and the refrigerant tubing shall be copper.

6.8 REFRIGERATIONCIRCUIT.Therefrigerationcircuitshallcontainaliquidfilterdryerandsuction and liquid access valves. The refrigeration circuit shall be protected from high pressure and loss of charge by a positive lockout device. The refrigerant metering device shallbea thermalexpansionvalveonthe indoor(cooling)circuitandontheoutdoor(heating)circuit.Onunitswithhotgasreheattherefrigerantmeteringdeviceshallbeathermalexpansionvalveontheindoor(cooling)circuitandontheoutdoor(heating)circuit.

6.9 SINGLE POINT POWER ENTRY. The GeoScholar QV heat pump shall have a single point power entry for line voltage.

WaterSIDeeconoMIZer (Optional,selectifdesired)

7.0 TheGeoScholarshallhaveawatersideeconomizertoreduceoperationofthecompressorwhentheinletwatertemperatureissuitableforcooling.Theeconomizershallconsistofawater to air heat exchanger located in a drain pan, an adjustable aquastat for sensing the watertemperatureandathreewaymotorizedvalve.Thecondensateshallbeconnectedto the condensate piping in the GeoScholar heat pump.


teStInG. The heat pump shall be factory tested and inspected after receiving the prescribed 8.0 refrigerantchargeinfinalassembly.Aspartofthetotalqualityassuranceprocedure,suchtesting and inspection shall serve to ensure proper construction, including testing the sealed refrigerant system, control functions, and general operation of the heat pump.

aIr dISTrIbuTION (One must be selected)9.0 Conditioned air leaving the heat pump shall leave through a freeblow plenum. Plenums

shallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet.Or

9.0 Conditioned air leaving the heat pump shall leave through a ducted discharge plenum. Plenumsshallbeinternallyacousticallyandthermallylined(allsidesandtheundersideofthetop)atthefactorytothestandardsspecifiedinDesignFeatures-Cabinet.

eXtenSIonplenUM(optional)10.0 A factory supplied extension plenum constructed of the same height and with the same

finishasthecabinet,toextendtheheightoftheunittotheceiling.Exactheighttobefieldmeasured.

SOuNd rEduCTION paNEl (Optional, unless display boards are used. See #11following).11.0 To minimize the sound in the classroom, a two-part hinged panel, provided by the

manufactureroftheheatpump,shallbefieldinstalledtothefrontoftheGeoScholarQVheatpump.Thesteelpanelsshallbethesamecolorandfinishasonthecabinetoftheheat pump.

dISplay bOardS (Optional)note:thedisplayboardsareattached to thesound reductionpanels. If thedisplayboardsaredesired,thesoundreductionpanelsmustbeused.

12.0 MAGNETIC DRY ERASE DISPLAY BOARD. A magnetic dry erase display board shall be furnished and installed by the contractor. The writing surface shall be P3 ceramicsteel on 28gaugesteellaminatedtoa1/2”lowdensityfiberboardwithanaluminumfoilbacking.The board shall have an aluminum frame around the perimeter. Or

12.1 PLASTICIZED CORK STICK BOARD. A tan colored stick board shall be furnished and installedbythecontractor.Theboardshallbeconstructedofplasticizedcorkmaterialwith a burlap backing laminated to a 7/32” tempered hardboard. The board shall have an aluminum frame around the perimeter.

VertIcaltrIMpanelS(optional)13.0 Sheet metal trim panels, of the same color as the GeoScholar QV heat pump’s cabinet,

shall be installed on both the left and right sides of the heat pump. The trim panels provideafinishedappearanceandcoveranyspacebetweentherearoftheheatpumpand the wall. Trim panels shall extend the full height of the heat pump and plenum and shallbe_____incheswide.

BaSeStanDS(optional)14.0 TheGeoScholarQVheatpumpshallbeinstalledontopofa____inch(4”,5”,6”or

8”high, select one) high base stand. The base stand shall be of the dimensions as the base of the heat pump and shall be designed to support the heat pump. The base stand shall be the same color as the cabinet of the GeoScholar heat pump.


42° blade angles with a color selected by the architect or engineer. The louvers shall be


designed not to hinder the intake or egress of the outside ventilation air and to separate theairstreams.Thespacingandthedesignofthebladesshallminimizethepossibilityofwater intrusion.

15.1Thefinishofthelouvershallbe:(select one of the following)


A TRINAR®finishthatmeetsorexceedstherequirementsofAAMA65.2andcontainsatleast 70% Kynar®fluoropolymer.(TheTrinarfinishprovidesextraprotectionincoastalenvironments.)Or

A TRINAR®finishwithacleartopcoatthatmeetsorexceedstherequirementsofAAMA65.2 and contains at least 70% Kynar®fluoropolymerfinish.(TheTrinarfinishwithtopcoat provides extra protection in coastal and corrosive environments and is the most durablefinish).Or

Ananodizedfinish.Theanodizedfinishshallbe: (select one of the following) clear, lite bronze,mediumbronze,darkbronzeorblack.



16.0 Heat pump thermostat shall be a digital, seven day, two occupied and two unoccupied periods for each day of the week programmable thermostat. Three stage heat/three stagecool.Manualorauto-changeover(selectable).Fan:AutoorOn.(selectable).Tenyear retention of program settings and 48 hour clock and time settings on power loss. Adjustable maximum set point for heating and minimum set point for cooling. Adjustable temperature differential. Keypad lockout. Status LED’s. °F or °C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Or


16.0 Heat pump thermostat shall be a Mar5000 people sensing, automatic setback digital thermostat. Using an occupancy sensor, the thermostat shall have the capability to determine whether the room is occupied or vacant. When people are present, the temperature is automatically maintained. When vacant, the thermostat automatically shall reduce the run time of the heat pump and the ventilation cycle to save energy. The thermostat shall have a dedicated relay to control the ventilation cycle. The relay may receive an input from an occupancy sensor, a light sensor or other external device. The Mar5000 thermostat shall continually update the occupancy pattern to ensure that the setpointtemperatureisachievedwithinaspecifictimewhenanoccupantreturnstotheroom. Set points shall be kept in memory for up to 3-1/2 weeks in the event of a power loss. The thermostat shall have an integral, solid state humidity/dew point sensor. This sensor shall activate the heat pump to limit humidity in the classroom. The thermostat shall be capable of recording occupancy and HVAC usage patterns for management reports.ThethermostatshallbeULlisted,FCCcertifiedandEnergyStarqualified.


CONTraCTOr INSTallaTION

17.0 The cabinet with the outdoor louver shall be installed and leveled in accordance with the written instructions provided by Marvair®.

17.1 An external condensate line shall be connected to the GeoScholar heat pump. The condensate line exit shall be (selectone)at the rear of the heat pump or through the base of the heat pump.

17.2 Line and control voltage connections shall be made to the appropriate terminals within the GeoScholar heat pump.

17.3 All external control devices shall be wired to the appropriate terminals within the GeoScholar heat pump.


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