RoofPak with Evaporative Condenser - Daikin...

Catalog 219-2RoofPak®

Singlezone, Heating and Cooling Systems with Evaporative CondensersModels: RDE/RPE 76–150 Tons

RDE–SWSI Airfoil (Plenum); SAF Draw-Through Cooling Coil; Filters; Steam or Hot Water Heat

RPE–DWDI Airfoil; SAF Blow-Through or Draw-Through Cooling Coil; Filters; Electric, Gas, Steam or Hot Water Heat

CAT 219-2 • ROOFPAK PACKAGED SYSTEMS 2 www.DaikinApplied.com

Table of ConTenTs

Table of ConTenTs

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A New Standard in Rooftop Systems with Evaporative Condensers . . . . . . . . . . . . . . . . . . . 3

Agency Listed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Features and Options . . . . . . . . . . . . . . . . . . . . . . . . . . 4Energy Savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Evaporative Condenser Energy Savings . . . . . . . . . . 6Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Refrigeration Circuit . . . . . . . . . . . . . . . . . . . . . . . . . 8Evaporative Condenser . . . . . . . . . . . . . . . . . . . . . . 8Walk In Service Compartment . . . . . . . . . . . . . . . . . 9Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Air Handling Section . . . . . . . . . . . . . . . . . . . . . . . 10Electrical and Controls . . . . . . . . . . . . . . . . . . . . . . 10

Factory Installed and Wired Options . . . . . . . . . . . . 11Condensing Section. . . . . . . . . . . . . . . . . . . . . . . . 11Air Handling Section . . . . . . . . . . . . . . . . . . . . . . . 11Intelligent Equipment™ . . . . . . . . . . . . . . . . . . . . 12Daikin MictroTech III Rooftop Remote User Interface. . . . . . . . . . . . . . . . . . . . . . 13Electrical and Controls . . . . . . . . . . . . . . . . . . . . . . 13Multiple Unit Applications . . . . . . . . . . . . . . . . . . . . 13Field-Installed Roof Curbs . . . . . . . . . . . . . . . . . . . 13Optional Water Treatment . . . . . . . . . . . . . . . . . . . 14

Application Considerations . . . . . . . . . . . . . . . . . . . . 17General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Location and Curb/Rail Support. . . . . . . . . . . . . . . 17Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Economizer, Return Fan and Exhaust Fan Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Variable Air Volume (VAV) . . . . . . . . . . . . . . . . . . . 20MicroTech III Control . . . . . . . . . . . . . . . . . . . . . . . 20

Unit Operating Range . . . . . . . . . . . . . . . . . . . . . . . . 21Fan Operating Range . . . . . . . . . . . . . . . . . . . . . . 21Indoor Fan and Motor Heat, Blow-Through vs. Draw-Through Cooling . . . . . . . . . . . . . . . . . . . 22

Recommended Clearances. . . . . . . . . . . . . . . . . . . . 23Service Clearance . . . . . . . . . . . . . . . . . . . . . . . . . 23Cooling Coil, Heat, and Supply Fan Service Clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Overhead Clearance . . . . . . . . . . . . . . . . . . . . . . . 23Ventilation Clearance . . . . . . . . . . . . . . . . . . . . . . . 24Control and Power Wiring . . . . . . . . . . . . . . . . . . . 25Altitude Adjustments . . . . . . . . . . . . . . . . . . . . . . . 25Furnace Performance . . . . . . . . . . . . . . . . . . . . . . 26Freezing Concerns. . . . . . . . . . . . . . . . . . . . . . . . . 26Spray System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Hot Water and Steam Coils . . . . . . . . . . . . . . . . . . 26Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . 26Condenser Water Connections . . . . . . . . . . . . . . . 27

Selection Instructions . . . . . . . . . . . . . . . . . . . . . . . . 28Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Cooling Capacity Data . . . . . . . . . . . . . . . . . . . . . . . . 32Heating Capacity Data . . . . . . . . . . . . . . . . . . . . . . . . 38Gas Piping Schematic . . . . . . . . . . . . . . . . . . . . . . . . 42Component Pressure Drops . . . . . . . . . . . . . . . . . . . 43Fan Performance Data . . . . . . . . . . . . . . . . . . . . . . . . 44

Return Fans & Exhaust Fans . . . . . . . . . . . . . . . . . . 44DWDI Supply Fans . . . . . . . . . . . . . . . . . . . . . . . . . . 45SWSI Plenum Supply Fans. . . . . . . . . . . . . . . . . . . . 47

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Section Options and Locations . . . . . . . . . . . . . . . . . 48Typical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 51Electrical Knockout Locations . . . . . . . . . . . . . . . . . . 53Piping Entrance Locations . . . . . . . . . . . . . . . . . . . . 54

Roof Curbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Supply Power Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 60Unit Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Fan Motor Weights . . . . . . . . . . . . . . . . . . . . . . . . . . 63Roof Curb Weights . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Engineering Guide Specification . . . . . . . . . . . . . . . 64

InTroduCTIon

www.DaikinApplied.com 3 CAT 219-2 • ROOFPAK PACKAGED SYSTEMS

InTroduCTIon

A New Standard in Rooftop Systems with Evaporative Condensers• 76 through 150 tons• Full factory operation test• 100% make-up air, dehumidification, VAV or CV operation• Modular construction and customized application flexibility• Multiple fan, coil, filter and heat selections. High efficiency

compressor and coil combinations• Factory integrated and commissioned MicroTech® III

advanced DDC control system• Daikin’s Open Choices™ feature provides building

automation system integration using BACnet® MS/TP, BACnet IP, BACnet Ethernet, or LonTaLk® communication protocol options

• Durable, double-wall construction with access doors on both sides of each section

• Heavy-duty evaporative condenser designed for easy maintenance with a walk-in service compartment

• Blow-Through configuration for high sensible cooling and quieter operation

• Draw-Through configuration for high latent cooling or high humidity applications

Agency Listed MEA

368-93-N

Manufactured in an ISO-Certified Facility

Nomenclature

R P E - 150 C S E

RoofPak

Unit Configuration P = Blow-Through Cooling D = Draw-Through Cooling

Evaporative Condensers

Nominal Capacity (Tons) RPE, RDE: 076, 089, 100, 110, 130, 140, 150

Heat Medium A = Natural Gas E = Electric S = Steam W = Hot Water Y = None (Cooling Only)

Cooling Coil Size S = Standard (Low Airflow) L = Large (High Airflow)

Design Vintage


feaTures and opTIons


1 MicroTech III Control System• Factory-installed and tested

to minimize costly field commissioning

• Open Choice™ feature provides building automation system integration using BACnet® MS/TP, BACnet IP, BACnet Ethernet, or LonTaLk® communication protocol options

• State-of-the-art keypad interface allows easy adjustment of Direct Digital Control functions, bi-directional communications, stand-alone or network operation*

• Optionally: add the Intelligent Equipment™ control solution, which provides real-time data streams for benchmarking performance, monitoring system operations and implementing remote diagnostics and control

2 Airfoil Fans• More energy efficient and quieter

than forward curved fans.• Double width, double inlet (DWDI)

or single width, single inlet (SWSI) plenum fans

3 Durable Construction• Pre-painted exterior cabinet

panels pass 750 hour ASTM B117 Salt Spray Test for durability

• Heavy-duty R-6.5 insulation minimizes heat loss for reduced energy costs

• Double-wall construction protects insulation and provides a wipe clean surface to inhibit microbial growth

• Stainless steel, sloped drain pans eliminate standing water and provide long service life

• Full unit base rail with heavy-duty lifting lugs provide single piece rigging of units up to 150 tons

4 SuperMod High Turndown Gas Burner• Full 20:1 turndown and multiple

sizes enable precise temperature control at reduced design, installation, and life-cycle costs

• Maintain comfortable tenant environment in VAV, 100% make-up air, and dehumidification applications

5 Hinged Access Doors• On both sides of every section for

easy access to all components.• Single lever latch and door

holders provide easy entry and support routine maintenance.

• Double-wall construction protects insulation during maintenance.

6 Blank Sections• Available throughout the unit

to factory-mount air blenders, carbon or charcoal filters, sound attenuators, humidifiers, or other specialty equipment.

• Allow customization for maximum system performance and efficiency.

7 Walk-in Service Compartment• Ventilation fan with a manual

shutter allows conditioned air into the service compartment for comfortable servicing in hot weather

• Lights, electrical outlet, main control panel, spray pump, water connections, and optional water treatment system

• Drain pan under the water piping and a raised floor grate in the pan keeps the walking area dry.

• Single field connections to make-up water and drain lines

5

6

211

10

9



8 Modular Flexibility• Allows you to specify the unit you

want, optimized for high energy efficiency, good IAQ, and quiet operation

• 100% make-up air, dehumidification, CV, and VAV operation

• Blow-Through cooling coil configuration (shown) provides higher sensible cooling, a quiet tenant environment, and energy savings

• Draw-through cooling coil configuration provides higher latent cooling for make-up air systems or systems with high humidity loads

• Multiple filter, fan, coil, and heating options and sizes to match system requirements.

• Extended face area filters and coils reduce system pressure drops and improve efficiency

• Multiple high efficiency compressor and coil combinations match

9 Return or Exhaust Fans• Return fans can provide better

building pressure and ventilation control as return duct pressure drop increases.

• Exhaust fans can save energy as return duct pressure drop requirements decrease.

10 Factory-Mounted Variable Frequency Drives• Control fan motor speed for lower

fan operating costs and sound levels in VAV systems.

11 Economizer• Outside air enters from both

sides, improving mixing for better temperature control.

• DesignFlow™ Precision Outdoor Air Measurement and Control System accurately measures and maintains outdoor air quantity.

• Patented UltraSeal™ low leak dampers minimize air leakage, reducing energy costs.

• Generous face area intakes/outlets and control dampers reduce system pressure drops, improving efficiency.

12 Evaporative Condensing Section• Open design allows easy access

to compressors and refrigerant piping

• Unique rail support system allows the roof deck and insulation to help block compressor noise from entering the building

• Condenser tube bundles.• Replaceable, slide out, sectional,

sloped stainless steel sump. Heaviest piece weighs less than 175 pounds

• Entire spray chamber is enclosed in stainless steel

• Replaceable mist eliminators• Replaceable air inlet screens• Vertical discharge propeller

condenser fans with service guards reduce noise

• PVC spray system with spray pump, water treatment connections and float control automatically maintains acceptable water levels

8

12

7

4

1

3


energy savIngs

energy savIngs

Evaporative Condenser Energy SavingsAir cooled condensers can only reject heat to the ambient dry bulb as the condenser air passes over the condenser surface. Typical design dry bulb temperature is often considered to be 95°F. However, actual rooftop dry bulb conditions are usually much greater due to solar heat on a dark roof. See Figure 1.

Evaporative condensers use a cooling spray of water that evaporates and cools the condenser air down toward the typical ambient wet bulb temperature of 75°F. SeeFigure 2.

Evaporative condensers, therefore, reject heat to colder temperatures and operate at lower condensing temperatures. Therefore less compressor work and energy are required.

This allows compressors in an evaporative condensing unit to operate at lower condensing temperatures and consume 25–40% less electricity than comparable air cooled units, especially at design conditions. Refer to Table 1.

Figure 1: Air-Cooled Condenser

Figure 2: Evaporative Condenser

Table 1: Air-Cooled vs. Evaporative-Cooled Condensers

Design Conditions Ambient Temperature

Condensing Unit kW per ton

Condensing Temperatures

ARI Design ConditionsAir Cooled 95°/75°F 1.15–1.20 125–135°FEvaporative Cooled 95/75°F 0.84–0.88 105–115°FDesert Design ConditionsAir Cooled 110°/72°F 1.35–1.40 135–145°FEvaporative Cooled 110°/72°F 0.82–0.86 102–112°F

Rooftops with Evaporative Condensers Save Money

1. Savings in Electrical Consumption CostsBoth consumption and demand usually drive the electrical costs for large, non-residential customers. Electrical consumption is the total energy consumed and is usually measured in kW Hours. Several factors influence consumption, including unit efficiency, operating hours, and load profile. Daikin’s Energy Analyzer™ computer program is the ideal tool for estimating energy consumption for a given building.

2. Savings in Electrical Demand CostsElectrical demand is the peak energy consumed in a billing cycle and is usually measured in kW. Demand costs associated with air-cooled and evaporative-cooled rooftops are relatively easy to compare.

a. The 25–40% reduction in peak design condensing unit kW translates into a 25–40% savings in condensing unit demand costs. Based on utility rate structures, this can be a substantial savings.

b. In addition, Daikin offers airfoil supply and return fans that reduce design bhp and air handler demand costs by up to 20%.

3. Savings in Installation CostRooftop ampacity and electrical service costs are proportional to design kW. A 25–40% reduction in condensing unit design kW translates into smaller and less expensive wires, disconnects and transformers that feed the rooftop units. Daikin’s airfoil supply and return fans often save one or two motor sizes and further reduce the required electrical service.

Typical Savings vs. Air-Cooled Rooftop SystemsTo illustrate the savings generated by evaporative condensing, consider a two-story shopping mall using several 125-ton VAV rooftop units and occupied 365 days a year. Assume external static pressures of 2.5" for each supply duct and 0.5" for return ducts. Table 2 through Table 4 show the Daikin RPE evaporative condenser rooftop if this mall is located in the Los Angeles, New York and Las Vegas.

energy savIngs


Table 2: Comparison of Evaporative and Air-Cooled Condensing for the Los Angeles Area MallConditions Air-Cooled Daikin RPEDesign Ambient Dry Bulb/Wet Bulb 95°F/72°F 95°F/72°FElectrical Consumption Rate (per kW Hour) $0.15 $0.15

Electrical Demand Rate (per kW) $24 $24

Condensing UnitEfficiency (kW/ton) 1.15 0.85

Electrical Cost $30,200 $22,100Percent Savings 27%All shopping mall energy analysis and comparison charts provided in this document have been generated using Daikin Energy Analyzer™ software.

Table 3: Comparison of Evaporative and Air-Cooled Condensing for the New York Area MallConditions Air-Cooled Daikin RPEDesign Ambient Dry Bulb/Wet Bulb 95°F/75°F 95°F/75°FElectrical Consumption Rate (per kW Hour) $0.11 $0.11Electrical Demand Rate (per kW) $18 $18

Condensing UnitEfficiency (kW/ton) 1.15 0.88Electrical Cost $17,860 $12,375

Percent Savings 31%All shopping mall energy analysis and comparison charts provided in this document have been generated using Daikin Energy Analyzer™ software.

Table 4: Comparison of Evaporative and Air-Cooled Condensing for the Las Vegas AreaConditions Air-Cooled Daikin RPEDesign Ambient Dry Bulb/Wet Bulb 110°F/72°F 110°F/72°FElectrical Consumption Rate (per kW Hour) $0.07 $0.07Electrical Demand Rate (per kW) $8 $8

Condensing UnitEfficiency (kW/ton) 1.40 0.85Electrical Cost $19,042 $11,351

Percent Savings 40%All shopping mall energy analysis and comparison charts provided in this document have been generated using Daikin Energy Analyzer™ software.

RPE Energy Costs are CompetitiveUsing the 0.85 kW/ton condensing unit efficiency from the previous example, Figure 3 shows a comparison of a Daikin RPE evaporative condenser rooftop system with a 0.55 kW/ton water-cooled chiller system. In this case, we assumed that the chiller system would have constant flow pumps and that it unloads to 0.46 kW/ton.

As shown in Figure 3, the energy performance of the two systems is very comparable, with the RPE offering a significant part load advantage and the chiller offering a small full load advantage. Given that most air-conditioning systems operate at 60% load or less over the great majority of a typical year, the Daikin RPE may be the best energy savings investment.

Figure 3: Comparable Energy Performance to Water-Cooled Chillers

Daikin Energy Analyzer™ Software ProgramDaikin Energy Analyzer is the perfect tool for quantifying the savings that can be generated by evaporative condensing. Energy Analyzer software can model energy consumption for almost any type of building based on local climate and utility costs.

Using Energy Analyzer to Quantify SavingsGo To The Primary System Screen (Figure 4)

1. Click On The Condensing Unit2. Click On Air Cooled or Evap Cooled3. Check The Defaults

For access to Daikin Energy Analyzer Software, contact your local Daikin representative for a copy. To locate your Daikin representative, visit DaikinApplied.com or call (800) 432-1342.

Figure 4: Energy Analyzer - Primary System Screen

http://www.DaikinApplied.com


feaTures

feaTures

Daikin RPE and RDE units contain the same air handler construction and controls as Daikin RPS and RDT applied rooftop units. For more detail, refer to RPS Catalog 214 and RDT Catalog 217. For a copy of these catalogs, contact your local Daikin representative or visit DaikinApplied.com.

Refrigeration Circuit• Open condenser design allows easy service access to

compressors and refrigerant piping• Multiple high efficiency Copeland Discus® compressors

mounted on isolators with crankcase heaters, positive displacement oil pump, low oil pressure protection control, 3-leg internal motor protection and cylinder unloaders for up to 8 steps of capacity control

• Dual refrigerant circuits include manual shut off valves on the suction, discharge and liquid lines, accessible sight glass, filter drier and solenoid valves (expansion valves are included in the air handler section). The controls include high and low refrigerant pressure protection control switches, manual control switch, and manual pump down switch

• Compressors are allowed to operate down to 45°F ambient, where economizer “free cooling” operation takes over

Evaporative Condenser• Unique rail support system allows the roof deck and

insulation to help block compressor noise from entering the building

• Condenser tube bundles are constructed of corrosion- resistant copper tubes, stainless steel casing, and polymer tube sheets

• The sloped, stainless steel sump is divided into multiple sections that slide out for easy replacement. The heaviest section weighs less than 174 pounds

• The entire spray chamber is constructed of corrosion- resistant stainless steel

• Replaceable mist eliminators between the tube bundle and condenser fans minimize water consumption

• Replaceable air inlet screens keep sunlight out of the sump and help prevent microbial growth

• Direct drive condenser fans eliminate the service expense associated with belts and sheaves

• Vertical discharge, propeller condenser fans with service guards reduce horizontal-radiated noise

• 3-phase, severe duty, totally enclosed condenser fan motors with current sensing overload protection and permanently lubricated bearings support extended product life

• PVC spray system includes spray pump, water treatment connections and float control that automatically maintains acceptable water levels. Replaceable, clog resistant nozzles spray water across a 150° arc and completely wet the coil surface for improved performance. Single field connections to make-up water and drain lines can reduce installed cost

Figure 5: Standard RPE and RDE Spray System

Optional WaterTreatmentSystem

HandValve

RemovableScreen

Pump

Sump

Automatic FloatControlledIntake Valve

Hose Bib withManual Shut OffValve

Intake Water

Spray

OptionalCycloneSeparator

Drain

OptionalBleed-OffSolenoidValve

See Figure 15 on page 16 for Water Treatment EnhancementsNOTE: The cyclone separator is on a side stream.

A hand valve controls water flow. The hand valve should be opened until the inlet pressure to the separator is about 10-20 psi as determined by the factory-installed gauge. This will yield about 15-30 gpm of blowdown whenever the blowdown solenoid opens.




feaTures


Figure 6: Corrosion Resistant

Figure 7: Easy Service Access

Walk In Service Compartment• All routine refrigerant service can be performed inside

the walk-in service compartment away from compressor noise and outdoor conditions

• Contains marine lights, electrical outlet, main control panel, spray pump, water connections, and optional water treatment system

• A thermostat-controlled ventilation fan turns on at 75°F and a manual shutter draws conditioned air into the service compartment for comfort. These features provide more comfort for service even in hot weather

• A hose bib is provided as standard in the make up water line to aid in condenser cleaning

• A drain pan under the water piping and a raised floor grate in the pan help keep the walking area dry

• Optional unit heater for cold climate use• No compressor noise is generated in the work area• Sight glass, filter driers, solenoid valves and charging

valves are in the service compartment

Figure 8: Walk-In Service Compartment

Stainless Steel Spray Enclosure

PVC Spray Tubes

Stainless Steel Sump

Copper Tube Bundles

Polymer Tube Sheets

Stainless Steel Fan Decks with Severe Duty Motors and Corrosion-Resistant Fans

Walk In ServiceCompartment

Access Doorson Both Sides

ReplaceableSump

Easy CompressorAccess

Replaceable Nozzles with 150° Spray Arc Main Control Panel

Perform most refrigerant service in comfort, away from compressor noise.

Raised Floor Grate and Drain Pan

Charging, Suction, Discharge & Liquid Schrader Connections

Solenoid, Sight Glass & Filter Drier

Hot Gas Bypass Valves

Space for Water Treatment

Marine Lights Exhaust Fan

Optional Unit Heater


feaTures

Cabinet• Weather resistant skin is made of pre-painted, galvanized

steel that successfully withstands a 750 hour salt spray test. The service compartment walls are double wall with R6.5 insulation sandwiched between the outer skin and inner liner. The air handler cabinet is also available with double-wall construction with R6.5 insulation

• Full-sized, double-wall, hinged access doors are provided on each side of the section, complete with a single lever latch

• Heavy gauge galvanized steel base with a formed recess sits on the gasketed curb and provides a weather-tight seal. The base also includes strategically placed lifting brackets to allow balanced cable or chain hook lifting

Air Handling Section• Factory piped, charged and tested refrigeration system

comes complete with an aluminum fin, copper tube, DX coil with expansion valves and distributors. Each distributor tube is wrapped in plastic to help prevent refrigerant leaks

• DX coils feature interlaced circuiting to keep the entire coil face active during all capacity steps and eliminate the air bypass associated with face split coil designs. An intermediate drain pan collects condensate from the top half of the coil. Drain tubes run from the intermediate drain pan to the sloped, galvanized [optional stainless] steel drain pan

• High efficiency airfoil supply fans require less bhp and generate less noise than forward curved fans at the medium static pressures typical of large VAV units. Fans are available in both DWDI (housed) and SWSI (plenum) fan arrangements. For more information, refer to page 19

• Insulated supply and return air plenums with bottom [optional horizontal] openings reduce ducted noise levels. A double wall option is available with perforated liners in these sections

Figure 9: Airfoil Fans

Electrical and Controls• Single source power with optional, non-fused disconnect

switch with control panel door interlock• Individual short circuit protection for each compressor,

supply fan and return fan motor. Condenser fan and exhaust fan motors are also provided with short circuit protection

• All control panel wiring is labeled per the wiring diagram and all 115–575 volt wiring is housed in conduit or metal raceways

• Daikin’s Open Choices™ feature provides building automation system integration using BACnet® MS/TP, BACnet IP, BACnet Ethernet, or LonTaLk® communication protocol options. This allows any building automation system (BAS) to communicate with MicroTech III over an industry standard network and obtain access to the operating status, all set points, and alarms

• LONMARK certified discharge air control (DAC) or space comfort control (SCC) communication options

• BACnet compliant communication options• MicroTech III is available in several temperature control

modes — LONMARK certified Space Comfort Control [SCC] for single zone, constant volume applications; including 100% make-up air application

— LONMARK certified Discharge air temperature control [DAC] for VAV or constant volume applications. Static pressure control of the supply fan and return/exhaust fan can also be included

— Time clock, lead lag, morning warm up, night set back, economizer pre-cool and flexible reset are all standard

• Published integration instructions for both forms of communication

• Unit mounted keypad and 4-line by 20-character display provide an enhanced user interface

• Compressor head pressure control that reliably cycles the condenser fans from sump temperature down to 45°F ambient

• Duct high pressure safety on all VAV units

Figure 10: MicroTech III Keyboard

faCTory InsTalled and WIred opTIons



The RPE and RDE contain the same air handler construction and controls as the RPS and RDT units. For complete detail refer to RPS Catalog 214 and RDT Catalog 217. For a copy of these catalogs, contact your local Daikin representative or visit DaikinApplied.com.

Condensing Section• Compressor spring isolation with suction and discharge

line vibration absorbers• Extra compressor unloaders that provide 6 stages (size

76–100) or 8 stages (size 110–150) of capacity control• Compressor part winding start to reduce inrush current• Replaceable core filter driers• Hot gas bypass on one or both refrigerant circuits• Electric sump heater that helps prevent the sump from

freezing in cold weather. Heat tape is also included for the sump drain and supply water lines

• 1.5 kW electric unit heater and ambient ON-OFF thermostat for the service compartment

Air Handling Section• Multiple fan and coil options optimize reliability, efficiency,

sound performance and first cost for varying cfm per ton operation. Units can be selected for make-up air applications

• Economizer systems come standard with outdoor and return air damper leakage rates of less than 1.5 cfm/ft2 at 1" static pressure. Economizers are available with the following value add options

— Patented DesignFlow™ minimum outdoor air measurement and control system that is independently certified to control ventilation air within +/- 5% of set point from 1,594 to 37,126 cfm of outdoor air

— Static air mixers that provide optimum uniformity in mixed air temperature and reduce the chances of freezestat trips and localized coil freezing

• Economizers are available with return or exhaust fans — SWSI airfoil return fans provide better building pressure and ventilation control on ducted returns

— Multiple propeller exhaust fans may save energy on low-pressure drop, ceiling plenum returns (see Economizer, Return Fan and Exhaust Fan Application on page 19)

• Variable frequency RAF and SAF drives for VAV control (exhaust fans always include a variable frequency drive)

• Supply and return fan belt guards• Spring isolation (with optional seismic construction)• Cooling coils are available in blow-through and draw-

through arrangements to optimize the use of fan and motor heat. See Figure 21 on page 22.

— In blow-through arrangements (RPE only), fan energy pre-heats the mixed air temperature before entering the cooling coil, providing greater sensible capacity and colder supply air temperature for a given compressor capacity

— In draw-through units, fan energy re-heats the air leaving the cooling coil. Draw-through systems provide greater latent cooling capacity, lower sensible heat ratios

• Gas and electric heat are available on RPE units with the following options

— Two-pass drum and tube heat exchanger with, fully modulating, FM approved burners for 3-to-1 or 20- to-1 (patented SuperMod™) turn down and optional IRI approval. Drum and tube heat exchangers feature all stainless steel construction. Selections are available to handle up to 100°F temperature rise

— Low watt density, nickel chromium electric heaters with branch short circuit, automatic reset and manual reset safety

• 1 or 2-row hot water or jet distributing steam coils with optional valve control and optional freezestats

• Supply fan sound attenuators with or without mylar coating of the acoustic insulation (RPE only)

• Generous face area, 2" pleated, 30% efficient panel filters and/or 65 or 95% cartridge filters are available Cartridge filters can be in the final, last in air flow position for hospital or laboratory applications (RPE only)

• Blank sections can be added for field-installed devices such as humidifiers and integral face and bypass coils

• Ultraviolet Germicidal Irradiation (UVGI) lamps are available factory installed in all RDE/RPE units to cleanse cooling coils and drain pans. The UVGI lamps irradiate the cooling coil and drain pan surfaces with light in the 254-nanometer wavelength of the light spectrum (UV-C). UV-C light has been proved effective in killing most bacteria, molds and viruses in both laboratory and practical application. In addition, the continuous “cleansing” action of the UV-C light also serves to continuously clean the coil and drain pan, improving long-term performance and reducing coil/drain pan maintenance. Daikin equipment and UVGI lights include (ETL) safety agency certification

Figure 11: DesignFlow™






Intelligent Equipment™

Intelligent Equipment (IE) from Daikin Applied is a secure, cloud-based controls solution that enables delivery of equipment and/or system information to customers via web or mobile devices.

A power measurement module and communications gateway installed on Daikin equipment enables the unit to be directly connected to the Internet via wireless (cellular, WI-FI) or local area network (LAN), providing management, monitoring control analysis and decision-making functionality for Daikin rooftop systems and the facility.

Features• Remote monitoring and control of Daikin rooftop units• Remote servicing capabilities• Integration to the Energy Star® Portfolio Manager®

• Advanced data analytics including equipment performance, financial performance and building Comfort Index metrix based on ASHRAE Standard 55-2010

• Dynamic user dashboards with photo-realistic graphics and responsive-design interface optimized for users’ mobile devices, tablets or PCs

• Secure, role-based user access

Benefits• Informed decision-making• Increased equipment efficiency• 24/7 monitoring capability• Real-time equipment information• Accelerated equipment payback• Historical performance data• Can be used with, or without, an existing building

automation system (BAS)

Figure 12: Intelligent Equipment Dashboards

Customer Dashboard

Technician Dashboard



Daikin MictroTech III Rooftop Remote User InterfaceEach remote user interface is identical to its unit-mounted counterpart and offers the same functionality, including:

• Touch sensitive key pad with a 4 line by 20 character display format

• Digital display of messages in English language• All operating conditions, system alarms, control

parameters and schedules are monitored

Features• Can be wired up to 1,200 feet from unit for flexibility in

placing each remote user interface within your building• Unit-mounted switch enables the remote user interface

during normal operation or the unit user interface for maintenance and service

Benefits• Allows you to access the user interface for each unit from

one location, inside the building.• Users need to learn one format because the remote user

interface is identical to the unit-mounted version.

Figure 13: Remote User Interface

Electrical and Controls• Factory-powered service outlets complete with its own

disconnect, short circuit protection and ground fault protection

• Smoke detectors in the supply and/or return air openings• Marine lights in the supply and/or return/exhaust fan

sections

Multiple Unit ApplicationsFor applications in which multiple units are connected in a common duct system, it is important to control all units from a common duct static pressure sensor and to control all operating units in unison. Centralized duct static pressure control can be accomplished through communication with the BAS network.

Field-Installed Roof Curbs• Constructed in accordance with NRCA guidelines using

12-gauge galvanized steel• Fits inside the unit base around the perimeter of the air

handling section and service compartment• Duct frames are provided to allow duct connections to be

made to the curb before the unit is placed. The unit seals to the duct frames

• Ship loose gasket seals between the unit and curb• Separate condensing unit support rail allows an open

condensing unit design and minimizes compressor noise and vibration transmission through the roof



Optional Water TreatmentAll evaporative condensing products require water treatment systems for proper operation. The water treatment system serves the following purposes:

• Controls organic contamination• Reduces condenser fouling and corrosion• Reduces cleaning frequency and water usage

OverviewDaikin RPE/RDE units come with a spray system, pump, sump strainer, automatic float controlled intake, and manual blowdown as standard.

Daikin evaporative condenser rooftop systems can provide as much as 44% in compressor energy savings compared to competitive air-cooled rooftop units. Until now, chemical water treatment was required to prevent scale build-up and microbial growth in the moisture laden condenser section of these units. Daikin now offers an alternative: a chemical-free water treatment system that can substantially lower the cost of water treatment, eliminate the use of hazardous chemicals and simplify the water treatment process.

Figure 14: Water Treatment System

Eliminates Chemical CostsThis system eliminates the use of hazardous chemicals, including scale inhibitors, biocides and corrosion inhibitors. Typical yearly savings range from $1,800 to $2,700 per year for a 150 ton evaporative condenser rooftop unit.

Minimizes CorrosionDaikin uses only stainless steel, copper and PVC in its evaporative condenser plumbing. Clean, chemical-free water, saturated with precipitates by this system, does not attack these materials.

Blowdown and Water ConsumptionControlled blowdown is required on Daikin RPE/RDE units as it should be with all evaporative condensing products. It involves draining off a portion of the highly concentrated water from the bottom of the sump and replacing it with lower concentration make-up water to prevent scale. Scale protection is required because the evaporation process leaves behind solids (scale) that will coat the heat exchanger surfaces and sump. This reduces the capacity, efficiency, and life expectancy of the equipment.

Manual blowdown occurs whenever the spray pump operates and a manual valve adjusts flow. This inevitably bleeds off too much [increased water costs] or too little [risking scale build up] water. Controlled bleed off is included with the Daikin water treatment controller. The concentration of scale forming solids is measured by water conductivity and the control opens or closes a solenoid to allow the proper amount of bleed off. The conductivity set point should be adjusted based on water analysis to maintain a desired cycles of concentration.

Theoretical water consumption required for proper heat rejection is 1.8 gallons per ton hour. All of this water evaporates and none goes into the sewer. An additional 0.6 to 0.9 gallons per ton hour is also required for make up and blowdown. The exact amount should be determined by water analysis. The RPE/RDE includes a float valve and solenoid that automatically refills the sump as required.

Blowdown must be handled in accordance with local codes and normal procedures are as follows:

• Daikin non-chemical water treatment system - used blowdown water often can be drained to the storm sewer (check local codes)

• Field installed chemical water treatment system - used blowdown must not be drained to the storm sewer and is usually drained to the sanitary sewer (check local codes)

Because most water utilities charge for both intake and sanitary sewer water flows based on intake meter readings, sanitary sewer charges may be reduced if sewer flow is proven to be less than water intake. Daikin offers both intake and blowdown water meters to document reduced sewer flow [confirm details with your local utility]. These meters are not included in the basic water treatment option.

Reduces Water Consumption CostsWith this system, supply water typically can be cycled through the evaporative system six times before it must be drained off to prevent scale. With chemical treatment systems, only three to four cycles are possible. This represents a water consumption savings of about 10%.



A Cleaner EnvironmentDaikin evaporative condenser rooftop units equipped with a chemical-free water treatment system contribute to a cleaner environment by reducing energy usage and by eliminating the introduction of hazardous chemicals into the waste stream.

Reduces Sanitary Sewer CostsSavings in sanitary sewer costs can be even more dramatic. That’s because this system requires no sanitary sewer usage— all condenser water, including blow-down, usually can be drained to the storm sewer or used for irrigation (check local codes). This represents a 10 to 15% water cost savings if sewer flow is measured (i.e., credit is given for the water that evaporates during the cooling process) and even more if it is not.

Chemical-Free BenefitsAs a scale inhibitor, the Daikin chemical-free system uses pulsed electromagnetic fields to neutralize the charge on particles suspended in water, causing them to attract to each other rather than to form scale on plumbing and heat transfer surfaces. The particles grow, encapsulate any microorganisms, and precipitate out of solution as a powder. A cyclone separator removes the powder from the system during the blow-down process. For microbial control, the system uses pulsed electromagnetic fields to attack the cell walls of any microorganisms that are not encapsulated. As a result, TBC is typically 75% less than with chemical treatment systems. In fact, total bacterial count (TBC) is so low that biofilms are normally prevented.

Easy MaintenanceThe Daikin chemical-free water treatment system has no moving parts and is easy to maintain. Inspection and monitoring are only required once or twice per quarter, as follows:

• Check the water conductivity (and clean conductivity sensor if necessary)

• Check total bacteria count (TBC)• Inspect general operation and controller settings

LEED Point AvailableChemical-free water treatment systems qualify for a LEED point under the “Innovation” heading, per a Credit Interpretation Request posted on the USGBC website.

12 to 18 Month PaybackThe superior performance of the Daikin chemical-free system costs a little more up front than a chemical feed system, tanks, and pumps. However, the water and chemical savings generally provide a 12–18 month payback, in addition to the financial benefit of cleaner water and heat transfer surfaces.

Table 6 below shows typical yearly water treatment cost savings when using this system on a Daikin 150-ton evaporative condenser rooftop unit.

Table 7 points out that, while there are water treatment costs associated with evaporative condensers, they are typically small compared to the total energy savings provided by a Daikin evaporative condenser unit.

Table 5: Yearly Cost SavingsLos Angeles New York City

Typical Chemical Treatment SystemWater Cost $1,067 $628Chemical Cost $2,000 $2,000Total $3,067 $2,628Daikin Chemical Free Treatment SystemWater Cost $923 $539Chemical Cost $0 $0Total $923 $539Chemical-Free Savings $2,144 $2,089Percent Savings 70% 79%

Table 6: Yearly Cost Savings with Rooftop UnitLos Angeles New York City

Competitive Air Cooled UnitEnergy Cost $30,200 $17,860Water Treatment $0 $0Total $30,200 $17,860Daikin RPE Unit with Chemical Free Treatment SystemEnergy Cost $22,100 $12,375Water Treatment $923 $539Total $23,023 $12,914RPE Cost Savings $7,177 $4,469Percent Savings 24% 28%

NOTE: All energy analysis and comparison charts provided above are estimates and have been generated using Daikin Energy Analyzer software. Actual customer results may vary. For access to the Daikin Energy Analyzer software, contact your local Daikin sales representative.



Figure 15: Daikin Water Treatment Option

Makeup water control valve

Manual shutoff

Heat-tape all components from customer connection point to makeup water control valve

Makeup water coil-pipe treatment module

Makeup water connection point to sump tank.

Side stream connection to sump tank

Cleanout

Customer makeup water connection point

Blow down and drain

Conductivity controller

Conductivity sensor

Auto purge controller

Makeup water transformer

System drain valve and actuator

Sump Pump

Sump overflow

Cyclone seperator

Cyclone seperator hand valve (hidden)

Flowmeter

Ball valve actuators for blowdown

Sump water coil-pipe treatment module

To Spraybar

Sump water transformer

To Spraybar

applICaTIon ConsIderaTIons



The RPE and RDE require many of the same application considerations as Daikin RPS and RDT units. More detail is provided in RPS Catalog 214 and RDT Catalog 217. For a copy of these catalogs, contact your local Daikin representative or visit DaikinApplied.com

General• Intended for normal HVAC use. Consult factory if

cataloged operating range is exceeded, such as make up air. Compressor cooling below 45°F is not allowed

• Rig the unit in accordance with the instructions provided in the Installation Manual IM 791. Split units are available to reduce rigging weight and may be required if the total length exceeds 52 ft. For a copy of IM 791, contact your local Daikin representative or visit DaikinApplied.com

• Fire dampers may be required by code. They are not included

• Qualified Start-up of the unit in accordance with the IM 791 is required

• Clean off any road chemicals, such as winter salt, when the unit is received

• Proper water treatment must be provided before unit start-up

Location and Curb/Rail Support• The structural engineer must verify that sufficient roof

strength is provided• Maximum unit pitch is 1/16 in. per foot. Curbs or

supporting rails must be rigidly supported along the entire length of the unit to prevent deflection that results in door interference

• Gaskets must be installed between the curb and the unit, per IM 791

• Curbs must be installed per NRCA guidelines See Roof Curbs on page 55

• Avoid locating the unit near any heat source, exhaust, smoke stack, or any source of air-borne particles or chemicals

• Local codes must be followed regarding fastening the unit to the curb/rail and the curb/rail to the building. This is especially critical in higher risk, hurricane or seismic zones

• Refer to the Acoustics on page 18 to avoid noise and vibration problems

• Daikin curbs include supply and return opening support frames and perimeter channels that seal to the unit as it is placed on the curb. Therefore, duct connections can be made to the curb before the unit is placed

Filters• Filters should be replaced on a regular basis to avoid

excessive pressure drop increases, especially on high efficiency cartridge filters

• Fan selection must consider dirty filter losses. Using a filter pressure drop midway between clean and dirty values is recommended unless maintaining minimum cfm is critical

• Daikin RPE units offer last in air stream “final” filters. They require special consideration

• The Daikin design uses full double-wall construction down stream of the final filters

• Cooling coils must be in the draw-through position.• Final filters down stream of gas and electric heaters must

be rated for 500°F temperatures. Maintenance personnel must use properly-rated replacement filters












AcousticsDucted and radiated sound power ratings are available from your local Daikin sales representative. The designer is responsible for addressing these sound levels. The following guidelines will help to achieve the desired sound levels in the occupied space.

• Locate the unit as far away from sound sensitive areas as possible. Refer to the Location and Curb/Rail Support on page 17

• Minimize supply and return fan TSP and select the fan as close to peak efficiency as possible. Avoid the “do not select” areas on the fan curve. Daikin offers several different fans per model size to allow for various design conditions. Refer to Fan Performance Data on page 44

Three different sound paths from the unit to occupants and/or neighbors must be considered:

1. Radiated path

• Use a concrete deck or pad when the unit must be located over sound sensitive areas. If this isn’t possible, provide extra acoustical insulation under the condensing unit

• Only the supply and return ducts, and the essential plumbing and electrical connections should penetrate the acoustical insulation or roofing below the unit. The outside perimeter of the ducts must be sealed after they are installed

• If a built-up roof with metal decking is used, then the area inside the curb perimeter requires special attention:

— Provide an inverted 6" channel around the inside perimeter of the curb and seal to the curb

— Acoustical insulation must be installed above the decking and the 6" channel

2. Vibration path

• Locate the unit’s center of gravity close to a main support beam to minimize roof deflection and vibration transmission into the building

• Daikin offers 2" deflection, supply and return fan spring isolation or rubber in shear isolators. The rubber in shear isolators should only be used when vibration isolation is clearly not required in the rooftop, such as when the unit is mounted on spring isolated curbs, spring isolated rails or the ground

• Daikin offers compressor spring isolation, including the necessary refrigerant line vibration eliminators

• Internal spring isolation options may be insufficient for some applications. Spring isolation of the entire unit may be required

3. Air-borne path through the supply and return openings

• Use 2003 ASHRAE Fundamentals Chapter 43 to help reduce ducted noise and minimize duct turbulence. Maintain straight ducts to and from the unit and avoid abrupt changes in duct size and direction. Avoid turns opposed to the fan wheel rotation. If 90° elbows are required, use turning vanes

• Use as much insulated return duct as possible and include at least one elbow and 15' of length. Maximum recommended velocities are 1000–1200 fpm

• Allow for duct break out and use oval or round duct whenever possible

• Insulate the first 20' of supply duct. The first 20' of rectangular duct should be routed over non-sensitive areas and avoid large aspect ratios. Maximum recommended velocities are 1800–2000 fpm

• Daikin offers factory-installed discharge plenums with optional perforated liners. The plenum provides several dB of attenuation and discharges the air at a more uniform, relatively low velocity. Ducted supply noise can be further reduced by adding optional sound attenuators between the supply fan and the unit discharge

• Route the return air path through the length of the curb to add distance between the unit return opening and the building return opening



Economizer, Return Fan and Exhaust Fan ApplicationRooftop economizer applications usually require return or exhaust fans to properly control building pressure and maintain minimum ventilation. Daikin offers both exhaust and return fan capability. They are not generally interchangeable for a given design. In general:

• Return air fans (RAF) should be used on ducted return systems (return ESP exceeds 0.4–0.5 in.)

• Properly selected propeller exhaust air fans (EAF) can successfully operate and save energy on open return systems (return ESP is less than 0.4–0.5 in.)

• Supply air fan (SAF) selection depends on whether a return or exhaust fan is used

— RAF system-SAF handles only the supply ESP at design

— EAF system-SAF handles both the supply and return ESP at design (EAF is OFF)

Figure 16 illustrates why supply fan only units have problems, especially as return ESP increases.

• No exhaust will occur from the rooftop because the economizer section must be at a negative pressure

• The air balancer must adjust the outdoor air damper to generate large pressure drops at minimum ventilation settings (about 0.9" in Figure 16)

Figure 17 illustrates how the addition of a return fan corrects these problems. The return fan is responsible for return system ESP and maintains a slightly positive pressure in the economizer section (about +0.1 in. in Figure 17) to allow for exhaust air control and a more suitable outside air intake pressure.

Exhaust fans are very different than return fans and can not maintain proper building pressure and ventilation control as return ESP increases.

• The EAF is normally off during non-economizer operation. During these minimum outdoor air conditions, the system essentially acts like a supply fan only system

• When the exhaust fan cycles OFF, there is no device available to maintain a positive pressure for relief, the mixed air plenum pressure dramatically changes and minimum ventilation air control and space pressure control are lost

An exhaust fan’s performance weaknesses diminish as return ESP decreases. Properly selected and controlled propeller exhaust fans can successfully operate and save energy at reduced return ESP designs.

• At system operating conditions where a single fan can be used successfully, it generally will be more efficient than operating series fans under the same total load. When the exhaust fan turns off, the supply fan can more efficiently handle both the supply and return duct loads

At the relatively high cfm, low static pressure conditions of exhaust/return application, exhaust fans can be selected closer to their peak design efficiency than can full return fans. This allows them to run more efficiently throughout their operating range. Therefore, when return duct losses don’t dictate the use of a return air fan, exhaust fans are an efficient alternate.

Figure 16: AF Only System Static Pressures with 1" Return Duct ESP

Figure 17: RAF System Allows Proper Exhaust and Outdoor Air Control

� � � � � � � � ��

� � � � � � � � � � � � � �

� � � � � � � � � � � � � � � �

�

�

�

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �

� � � � � � � � � � � � � ��

� � ��

� � � � � � � � � � � � � � � � � � � � � � � � �

� � � � � � � � � � � � � � ��

� � � � � � � � � � � � � �

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �



Variable Air Volume (VAV)Daikin Rooftop VAV options include everything required to provide the full advantages of true shut-off VAV. Bypass VAV systems do not offer any fan energy savings at light load.

• Variable Frequency Drives for all indoor fans maximize part load fan efficiency and minimize fan sound generation

• Indoor fan volume control based on supply static pressure and building pressure

• Up to 2 supply duct sensors to properly respond to building diversity (such as east-west variation)

• Constant discharge temperature control. Shut-off VAV offers the following advantages

• Reduces first cost and energy due to building diversity• Reduces indoor fan energy requirements at light load• Provides the opportunity for efficient multiple zone control

from a single unit and to match changing occupancy demands

• VFDs turn down in accordance with Figure 18

The benefits of Daikin airfoil fans are particularly applicable to VAV applications.

• Better efficiency and less noise at the medium static pressures associated with VAV

• Airfoil fans are much more forgiving than forward curved fans if unexpected variations in ESP occur

• They are “non-overloading” (bhp is fairly constant for a given RPM) and require less safety factor in motor selection

• They have steeper RPM lines (less variation in cfm for a given variation in ESP)

• Multiple forward curved fans are often used and they risk unstable fan paralleling at light load

Figure 18: VFD Turndown

MicroTech III ControlSupply fans are controlled to maintain constant supply duct static pressure.

• Run pressure-sensing tubes to the desired location (generally at the end of the main trunk)

• Use a second sensor when there is more than one main trunk, multiple floors, or significantly varying zones (such as east and west sides of a building)

Return/exhaust fans are controlled to maintain building pressure in one of two ways.

• Daikin’s exclusive Vanetrol™ supply/return fan tracking is generally preferred. Vanetrol is adjusted at system air balance to maintain proper building pressure throughout the expected loading conditions. This reduces the effect of wind, climate variation and doors opening and closing

• Direct building sensing control is available for exhaust fans or any return fan application that cannot predictably track the supply fan

Daikin generally offers more steps of compressor capacity control than the industry norm, as well as HGBP, and these capabilities should be included on VAV applications to minimize variations in duct temperature.



Unit Operating RangeFan Operating RangeThe acceptable system operating range of the Daikin rooftop unit is determined by all of the following characteristics. Each of these limiting factors must be considered for proper performance and component design life.

1. Unstable fan operation

2. Maximum fan rpm

3. Maximum cabinet static pressure

4. Maximum face velocity (cooling coil is most important)

5. Minimum furnace or electric heater velocity

6. Turndown capability on VAV applications

7. Compressor operating pressures

Figure 19 illustrates these limiting factors with the exception of items 6 and 7 above. The shaded area indicates the design operating range of the fan. For optimal efficiency, select fans as close to the fan’s peak static efficiency line as possible. This line is the first system curve to the right of the unstable line illustrated. VAV fan selections must also allow for keeping the fan away from the “do not select” area at minimum design cfm.

Cooling coil maximum face velocity is based on moisture blow off limitations and laboratory testing.

• 650 feet per minute maximum face velocity for 8 and 10 fin per inch coils.

• 600 feet per minute maximum face velocity for 12 fin per inch coils.

• Cooling coil minimum face velocity is 200 feet per minute for any coil selection. VAV systems must be designed such that this velocity is maintained at minimum airflow.

• Maximum design ambient wet bulb temperature varies per unit, but is at least 85°F. Evaporative condenser units are an excellent choice for high ambient applications.

• The minimum ambient temperature for compressor operation is 45°F. The MicroTech III Controller is set to prevent compressor operation below that temperature and use the economizer only when cooling is required at a lower ambient.

Figure 19: Fan Selection Boundary

Do Not Select



Indoor Fan and Motor Heat, Blow-Through vs . Draw-Through CoolingIndoor Fan and Motor Heat

• The indoor fan and motor electrical consumption is a sensible cooling load approximately equal to 2.8 MBh per bhp (depending slightly on motor efficiency). This occurs at the fan. See Figure 20 and Figure 21. The fan and motor preheat the mixed air before it enters a blow-through cooling coil. The fan and motor reheat the air leaving a draw-through cooling coil. Refer also to 2001 ASHRAE Fundamentals Handbook, Chapter 31

• Fan and motor temperature rise is equal to Btuh / (1.08 × cfm) and is typically about 3°F

• Due to fan and motor heat placement (Figure 20), blow-through coils provide a high sensible heat ratio while draw-through coils provide more latent cooling per total ton. Blow-through coils achieve a higher sensible heat ratio because they operate with a higher coil approach temperature and a lower entering relative humidity. Conversely, draw-through coils cool air at a lower approach temperature and a higher relative humidity, increasing latent cooling

• Blow-through coils effectively provide colder supply air temperatures per ton of air conditioning and greater sensible heat ratio. This potentially allows a significant reduction in design cfm for buildings with high sensible heat ratios and a resulting reduction in building energy use

Figure 20: Blow-Through vs. Draw-Through Concept

Figure 21: Blow-Through and Draw-Through Performance Comparison

3° D .T .Reheat

MAT

3° B .T .Preheat

Coil EAT IsDifferentCoil LAT Is

Different

https://ashrae.org/

https://ashrae.org/



Recommended ClearancesService ClearanceAllow the recommended service clearances shown in Figure 22. Provide a roof walkway along two sides of the unit for service and access to most controls.

Cooling Coil, Heat, and Supply Fan Service ClearanceAn additional clearance of 24" is recommended adjacent to the cooling coil, heat, and supply fan sections.

Overhead Clearance1. Unit(s) surrounded by screens or solid walls must have

no overhead obstructions over any part of the unit.

2. The area above the condenser must be unobstructed in all installations to allow vertical air discharge.

3. The following restrictions must be observed for overhead obstructions above the air handler section:

a. There must be no overhead obstructions above the furnace flue or within 9 inches of the flue box.

b. Any overhead obstruction shall not be within 2 inches of the top of the unit.

c. A service canopy must not protrude more than 24 inches beyond the unit in the area of the outside air and exhaust dampers.

d. Flue box outlet must extend above any obstructions.

Outdoor Air IntakesDo not locate outside air intakes near exhaust vents or other sources of contaminated air.

If the unit is installed where windy conditions are common, install wind screens around the unit, maintaining the clearances specified. This is particularly important to prevent blowing snow from entering outside air intakes.

Figure 22: Service Clearances

Roof Walkway

24"

72" Service Clearance on4 sides except as indicated

72" Clearance toend of unit or endof outside hood

Adjacent to Cooling Coil, Heat, and Supply Fan Sections.



Ventilation ClearanceUnit(s) surrounded by a screen or a 50% open area fence:

1. The bottom of the screen should be a minimum of 1 ft. above the roof surface.

2. Minimum distance from the unit to screen is the same as the recommended service clearance.

3. Minimum distance, unit-to-unit = 120 in.

Unit(s) surrounded by solid walls:

1. Minimum distance from the unit to the wall is 96 inches for all sizes.

2. Minimum distance from the unit to another unit is 120 inches.

3. Wall height restrictions:

a. No restrictions if there is a wall on one side only, or on two adjacent sides.

b. The wall height is restricted to no more than the unit height with walls on more than two adjacent sides.

Figure 23: Ventilation Clearances Maximum AllowableOverhead Canopy Area

9" Min to Flue BoxTypical All Sides

Flue Box

24" Max

24" Max

2" Top of UnitTo OverheadObstruction



Control and Power WiringWiring must be done in accordance with the NEC and local code. For wire sizing instructions, see Supply Power Wiring on page 60.

• All units require 208-60-3, 230-60-3, 460-60-3, 575-60-3 or 380-50-3 power.

• Size wire in accordance with tables 310-16 or 310-19 of the National Electric Code. Wires should be sized for a maximum 3% voltage drop. Copper conductors must be used.

• Actual voltage at the unit connection must be within +/- 10% of nameplate voltage at all times.

• Daikin offers several power connection options.• Single power connection with a terminal block or non-

fused disconnect are normally the most economical.• Systems served by emergency generators often require

two power connections (with terminal blocks or non-fused disconnects). The generator normally serves only the air handler and controls portion so the condensing unit must be powered separately.

• Each unit is provided with a separate 115 volt convenience outlet that requires a separate power connection per the NEC.

• A second, 115 volt power supply is required to power the optional unit heater for the service compartment.

Most units require a zone temperature sensor for night heat and other functions. The sensor must be properly placed so that its temperature reflects the zone requirements. Avoid outside walls, sunlight and close proximity to supply air or heat generating equipment. A return air sensor can be substituted for the space sensor if necessary.

Altitude AdjustmentsFan curve performance is based on 70°F air temperature and sea level elevation. Selections at any other conditions require the following adjustment for air densities listed in Table 7. Higher elevations generally require more RPM to provide a given static pressure but less bhp due to the decrease in air density.

1. Assume 32,000 cfm is required at 3.11" TSP. The elevation is 5000 ft. and 70°F average air temperature is selected. A 40" DWDI airfoil fan is selected.

2. The density adjustment factor for 5000 ft. and 70°F is 0.83.

3. TSP must be adjusted as follows; 3.11" / 0.83 = 3.75"

4. Locate 32,000 cfm and 3.75 on the fan curve. RPM = 900 and bhp = 27.5. The required fan speed is 900 RPM.

5. The consumed fan power at design = 27.5 bhp × 0.83 = 22.8 bhp.

Figure 24: RPE 105C - 135C 40 in. DWDI Airfoil

Table 7: Temperature and Altitude Conversion FactorsAir

Temp (°F)

Altitude (Feet)

0 1000 2000 3000 4000 5000 6000 7000 8000

-20 1.20 1.16 1.12 1.08 1.04 1.00 0.97 0.93 0.890 1.15 1.10 1.08 1.02 0.99 0.95 0.92 0.88 0.85

20 1.11 1.06 1.02 .098 0.95 0.92 0.88 0.85 0.8240 1.06 1.02 0.98 0.94 0.91 0.88 0.84 0.81 0.7860 1.02 0.98 0.94 0.91 0.88 0.85 0.81 0.79 0.7670 1.00 0.96 0.93 0.89 0.86 0.83 0.80 0.77 0.7480 0.98 0.94 0.91 0.88 0.84 0.81 0.78 0.75 0.72

100 0.94 0.91 0.88 0.84 0.81 0.78 0.75 0.72 0.70120 0.92 0.88 0.85 0.81 0.78 0.76 0.72 0.70 0.67140 0.89 0.85 0.82 0.79 0.76 0.73 0.70 0.78 0.65

http://www.nema.org/Technical/FieldReps/Pages/National-Electrical-Code.aspx



Furnace Performance• Gas heat performance data is based on standard 70°F

combustion air temperature and zero feet altitude (sea level).

• Furnace altitude derate may be 4% per 1000 feet above 2000 feet due to lesser combustion air density.

• However, if design ambient is cold enough, then the combined affect of colder temperature and altitude may have an offsetting impact on combustion air density.

Example:A 1000 MBh furnace at 70°F ambient and at an altitude of 5000 feet is derated (0.04 × 3 = 0.12). At 1000 MBh input (1000 × 0.12 MBh), the actual input is (1000 – 120 = 880 MBh) at 5000 feet. Above 6000 feet, consult factory.

Freezing ConcernsFreeze protection measures must be taken for any rooftop exposed to freezing conditions. The owner and building designer must take primary responsibility based on the exact climate and installation conditions.

• Drain all condenser water as soon as the climate allows the economizer to provide all required cooling.

• The optional sump heater is recommended to protect the sump if ambient temperatures can drop to freezing conditions (even at night).

Spray SystemThe spray tree and nozzles are not vulnerable to freezing because water drains out of them when the spray pump is OFF. Remove the sump drain plug whenever the unit is not in operation to prevent precipitation from building up in the sump and drain.

Two freeze protection options are required to prevent the rest of the spray system from freezing.

1. An optional service vestibule heater provides primary freeze protection of the spray system enclosed in the vestibule. A thermostat turns the unit heater on when vestibule temperature drops to 40°F.

2. A sump heater is a recommended option that includes the following:

• An ambient thermostat-controlled insertion heater for the sump.

• Heat tape, insulation and thermostat for the sump drain.

• Heat tape, thermostat and insulation is included on the high pressure, factory water inlet piping upstream of the float control valve. An additional 10 feet of heat tape is provided to protect field connections. The installer must provide additional heat tape as required and insulate all field piping.

• An emergency drain solenoid opens up whenever the sump temperature drops near freezing and the spray system drains onto the roof.

Hot Water and Steam CoilsThe RPE/RDE economizer offers better mixing capability than competitive rooftops but it cannot protect a hydronic coil from localized freezing. Optional air mixers are available to reduce air stratification and freezing concerns.

• Glycol is strongly recommended for hot water coils. It is the only reliable protection in the event of a power failure. Glycol’s impact on coil and pump performance must be considered.

• An optional, non-averaging coil freezestat is offered on the downstream face of the heating coil. The outdoor dampers are shut, the fan is shut off, and the heating valve is fully opened, if freezing temperatures are experienced. The freezestat must be set somewhat above freezing temperatures to improve protection and may experience nuisance trips. It can not protect the coils during a power outage.

• Freeze protection strategies must not cause the cabinet temperature to exceed 150°F or motors and electrical equipment may be damaged.

The field installed supply and bleed off water lines can enter the unit through the floor, inside the curb perimeter. This may provide sufficient protection depending on the temperature inside the curb. Use freeze protection if there is any concern the temperature inside the curb may fall below freezing. If no curb is provided, or field water piping enters the side of the unit, then additional measures are required such as heat tape and proper pipe insulation.

Hot water and steam coil piping can enter the floor of the unit in the heat section and requires similar consideration.

Water TreatmentAll evaporative condensers require proper water treatment. See Optional Water Treatment on page 14.

The purpose of the water treatment system is to:

• Control organic contamination.• Reduce condenser and sump scaling, fouling and

corrosion.• Reduce the required cleaning frequency.

Proper water treatment involves two mandatory components (treatment and bleed off) and may also require a solid separator system depending on water quality.



Condenser Water ConnectionsSupply and return condenser water piping, plus field connections for chemical water treatment, are shown in Figure 25. Supply water can enter the floor of the service vestibule. Space is allowed in the vestibule for chemical tanks. Condenser bleed off (or return) connections allow easy drainage to a sanitary sewer through the floor of the vestibule.

The spray operation washes particles out of the condenser air and condenser heat rejection evaporates water. This process leaves behind minerals and particles that were contained in the water. Water bleed off and water treatment are required to prevent the build up of scale, sludge and micro-organisms on the tube bundles and in the sump. These must be installed prior to unit start-up. See Optional Water Treatment on page 14.

The theoretical water consumption required for proper heat rejection is 1.8 gallons per cooling ton hour. A nominal 100- ton unit, running at 50% capacity or 50 tons, evaporates 90 gallons of water per hour while rejecting condenser heat.

• Additional water must be added to the sump and bled off to the sanitary sewer to remove particles and minerals that accumulate in the water during operation. The required amount of bleed off varies with the water quality and is generally 0.6 to 0.9 gallons per ton hour or 33-50% of the theoretical evaporation water. Bleed off can be controlled in two ways.

• The RPE/RDE is provided with a manual shut off valve that can be used to adjust for a constant flow rate of bleed off water. This standard bleed off system can easily bleed off too much or too little water.

• Controlling bleed off with a solenoid valve, based on water conductivity or some other measure of particle concentration should be used. It is included in the RPE/RDE water treatment option.

• The RPE sump also has a float control that automatically opens the supply water solenoid and replaces water lost in evaporation and bleed off.

Water utility costs are usually based on the combination of water usage and sewer discharge. Only the bleed off portion of the water used by an evaporative condenser drains to the sewer (about 25-33% of total water used). Therefore, the sewer component of the cost of water may be reduced significantly if approved water meters are installed in the intake and bleed lines. The difference in meter rates reflects evaporation (water that will not go to the sewer) and this can be applied as a credit to the total water bill. Consult your local water utility for details.

Figure 25: Condenser Water Piping and Connections Water Consumption

SprayPump

Optional FreezeProtection DrainValve

Manual DrainValve

OptionalWaterTreatmentController

Supply toSump

Field Bleedoffor DrainConnection

From OptionalSeparator

To SpraySystem

To SpraySystem

Field SupplyWaterConnection

ManualShut offValves

Hose Biband ManualShut offValve

RecommendedWater PipingEntranceThrough theCurb

AutomaticSupply Water Valve(Float Controlled)

RemovableSump Screen

FromSump

Sump Drain LeftOpen for Shipment



Selection InstructionsBuilding design and unit selection must allow for code compliance and installation limitations. The Daikin Rooftop unit offers excellent flexibility to meet diverse application requirements.

This catalog includes summary performance tables at several operating conditions. Performance at other conditions can be estimated by interpolation but accuracy may suffer. Extrapolation often results in unreliable or damaging operating conditions and should not be used without factory guidance that is available through your local sales representative. Contact your Daikin representative for custom selections at specific design conditions.

Selection ExampleSelection based on design criteria:

• 38,000 supply cfm at 2.00" ESP• 36,000 return cfm at 0.75" ESP• Sea level location using 60 Hertz power• 95/75°F cooling ambient temperature• 80/67°F cooling mixed air temperature [MAT]

Total cooling loads requirements:

• 115 total tons• 87 sensible tons

Total sensible loads allow for:

• 50 hp SAF motor• 25 hp RAF motor

Gas furnace requirements:

• 1520 MBh of design heating• 9" gas pressure available at the unit• Furnace to only be used at design cfm for morning warm

up and night heat• An RPE unit must be used since a furnace, or electric

heat, or final filters are required.

Unit includes:

• Economizer plus return fan• 65% filters plus pre-filters

Cooling SelectionGross and net coolingThe tables within the section Cooling Capacity Data on page 32 provide gross cooling or DX coil capacity based on DX coil entering air temperature (EAT).

Net unit cooling capacity = [Gross cooling capacity] - [fan/motor heat]

Fan/motor heat is critical. Refer to Indoor Fan and Motor Heat, Blow-Through vs. Draw-Through Cooling on page 22.

Fan/motor heat = 2800 Btuh per bhp

Fan/motor temperature rise (TR) = Btuh / (1.08 × cfm)

Mixed air vs . entering air temperature [MAT vs . EAT]Draw-through coil EAT = MAT

Blow-through coil EAT = MAT + TR

Blow-through EDB = mixed air EDB + TR

Use a psychometric chart to find blow-through EWB.

Selection From Capacity TablesBlow-through vs. draw-through. Refer to Indoor Fan and Motor Heat, Blow-Through vs. Draw-Through Cooling on page 22.

Required sensible heat ratio < 80% [87 / 115 = 76%]

An RPE is required due to the gas heat requirement. Therefore a draw-through RPE will be considered first.

The RPE unit is available with both a low and high airflow DX coil. Refer to Table 8: Physical Data, RPE/RDE 076C - 150C on page 31.

First select a high and low airflow coil with sufficient capacity. The RPE 110 with high airflow coil has sufficient capacity.

No low airflow coil has sufficient capacity.

Check coil velocity on all possible selections.

High airflow face area = 76.0 square feet face velocity = 526 feet per minute.

Low airflow face area = 60.8 square feet face velocity = 658 feet per minute

The low airflow velocity is too much per Unit Operating Range on page 21.

The RPE 110 [with high airflow coil] is sufficient per Table 16 on page 35.

RPE 110 provides 117.6 total tons.

RPE 110 provides 90.8 tons of sensible capacity.

RPE 110 power consumption.

90.0 compressor kW (see Table 16 on page 35).

4.0 condenser fan and pump kW (see Table 20 on page 37). RPE 110 fan and motor heat must still be verified to be less than 50 = 25 bhp [per “fan selection”] to be sure that net cooling capacity is sufficient.



Heat SelectionSee Catalog 214 or 217 for hot water, steam and electric heat selection instructions.

Furnace SelectionSee Table 24 on page 40 and Table 25 and Table 26 on page 41.

Table 24 and Table 25 indicate all of the furnace output capacities available.

Output capacity is the true measure of furnace capacity

Output capacity = Input capacity × furnace efficiency

Furnace efficiency = 80% for Daikin furnaces [similar to most direct fired furnaces]

Net unit heating capacity =

Furnace heating capacity + fan/motor heat =

Furnace heating capacity + (50 + 25) × 2800 =

Furnace heating capacity + 210,000 Btuh

Net heating capacity must satisfy the heating load of 1520 MBh. A 1400 MBh furnace is the correct choice.

1,400,000 Btuh + 210,000 Btuh exceeds the 1,520 MBh requirement.

Assuming actual bhp exceeds (1,520,000 - 1,400,000) / 2800 = 42.9 bhp

Baffle selection is based on design airflow and Table 22 on page 38.

Baffle A has the greatest air pressure drop.

Use baffle A from 21,000 to 37,999 cfm.

Baffle B has the next greatest air pressure drop.

Use baffle B from 38,000 to 38,999 cfm.

Furnace air pressure drop at design air flowRefer to Table 24 for a 1400 MBh furnace with B baffle.

0.86" = furnace air pressure drop.

Minimum inlet gas pressureRefer to Table 25 for a 1400 MBh furnace. Minimum inlet gas pressure = 8.8" for the standard modulating burner.

5.0" for the 20:1 high turndown, modulating burner.

Furnace air temperature rise = Output Btuh 1,400,000 / 1.08 × cfm = 32.4°F

Filter SelectionRefer to Table 8: Physical Data, RPE/RDE 076C - 150C on page 31 and Table 29: Component Pressure Drops on page 43.

Table 8 shows the filter face area options.

Table 29 shows performance data for each filter option:

Clean filter air pressure drop Maximum airflow

Selection for 65% filter at 38,000 cfm per Table 29.

The medium airflow option is required Clean air pressure drop = 0.65" 30% prefilter clean air pressure drop = 0.36"

Maximum recommended, dirty filter pressure drop [PD] for these filters:

0.7" for the 30% prefilter 1.0" for the 65% filters

Please note that 95% filters are not part of this selection. 95% filter, maximum recommended, dirty PD = 1.20".

Average filter PD = (0.7 + 1.0 + 0.65 + 0.36) / 2 = 1.35"

Daikin generally recommends selecting the supply fan based on average filter PD.

This allows airflow to best match specifications. Adjustments can be made to maintain critical, minimum airflow.




Fan SelectionRefer to the following: Table 8: Physical Data, RPE/RDE 076C - 150C on page 31 and Table 29: Component Pressure Drops on page 43. Fan Operating Range on page 21. Fan Performance Data on page 44.

Return Air Fan and Exhaust Air Fan SelectionRefer to Return Fans & Exhaust Fans on page 44 for 36,000 cfm at 0.75" ESP. The 44" SWSI return fan performance requires 19.5 bhp at 810 RPM. 19.5 bhp satisfies the RAF bhp specification.

Supply Fan SelectionThe unit is specified to have a return fan.

Therefore the supply fan must only handle internal APD and supply duct ESP.

See Economizer, Return Fan and Exhaust Fan Application on page 19.

Internal APD per Table 28 on page 42 and Table 29 on page 43.

Economizer with return fan = 0.52"

High airflow, 12 fpi, DX coil air pressure drop = 0.80" Gas furnace = 0.86"

Average filter air PD = 1.35"

TSP = 0.52 + 0.80 + 0.86 + 1.35 + 2.00 ESP = 5.54"

SWSI Plenum vs . DWDI Supply Fan SelectionEach type should be considered based on maximum efficiency and customer preference.

DWDI fans are available on RPE, blow-through or draw-through units and must be used due to the furnace requirement.

SWSI fans are only available on RDE, draw-though units.

• No blow-through coils or filters• No furnaces or electric heat• They offer advantages with side discharge

Pick the optimum SAF for 38,000 cfm and 5.54" TSP

• 40" DWDI = 47.8 bhp and 1085 RPM (Figure 37 on page 46)

• 36" DWDI = 50.1 bhp and 1288 RPM (Figure 36 on page 46)

• 33" DWDI = do not select

The 40" fan is superior.

• 5% more efficient and, therefore, quieter• Saves a motor size• Meets the 50 hp supply fan allowance

We can now verify acceptable net heating and cooling capacities.

Actual supply and return fan bhp = 47.8 + 19.5 = 67.3

Acceptable for cooling (67.3 < 50 + 25)

Acceptable for heating (67.3 > 42.9)

physICal daTa


physICal daTa

Table 8: Physical Data, RPE/RDE 076C - 150C

DataUnit Size

076C 089C 100C 110C 130C 140C 150CNominal Capacity (tons)1 79.2 89.4 98.9 119.3 130.8 141.9 152.5Nominal Airflow (cfm) 32000 35000 35000 42000 45000 46000 46000

Compressor

Type ReciprocatingQuantity - hp 2-30 2-35 2-40 4-25 4-30 2-30, 2-35 4-35Std. capacity control 100-83-67-33-0 100-75-50-25-0 100-72-44-22-0 100-75-50-25-0

Opt. capacity control 100-83-67-50-33-16-0 100-88-75-63-50-38-25-12-0 100-89-79-61-44-32-22-11-0

100-92-83-67-50-42-33-16-0

Condenser Fans No. - Dia. (In.) 4-26 4-26 4-26 6-26 6-26 6-26 6-26Condenser Fan Motors No. - Hp 4-1.5 4-1.5 4-1.5 6-1.5 6-1.5 6-1.5 6-1.5

Supply Fans

Type SWSI AirfoilNo. - Dia. (In.) 1-44, 49Motor hp range 5 - 75Type DWDI AirfoilNo. - Dia. (In.) 1-33, 36 1-33, 36 1-33, 36 1-36, 40 1-36, 40 1-36, 40 1-36, 40Motor hp range 5-75 5-75 5-75 5-75 5-75 5-75 5-75

Return FansType SWSI AirfoilNo. - Dia. (In.) 1-44.5 1-44.5 1-44.5 1-44.5 1-44.5 1-44.5 1-44.5Motor hp range 5-60 5-60 5-60 5-60 5-60 5-60 5-60

Exhaust Fans

Type PropellerDiameter (In.) 36 36 36 36 36 36 36Quantity 2-3 per unit 2-3 per unit 2-3 per unit 2-3 per unit 2-3 per unit 2-3 per unit 2-3 per unitMotor hp 5 each 5 each 5 each 5 each 5 each 5 each 5 each

Evaporator Coils

Rows 3, 4, 5 3, 4, 5 3, 4, 5 3, 4, 5 3, 4, 5 3, 4, 5 3, 4, 5FPI 8, 10, 12 8, 10, 12 8, 10, 12 8, 10, 12 8, 10, 12 8, 10, 12 8, 10, 12F.A., small (sq. ft.) 53.9 53.9 53.9 60.8 - - -F.A., large (sq. ft.) 60.8 60.8 60.8 76.0 76.0 76.0 76.0

Hot Water Coils

Type - Rows 5WH-1 5WH-1 5WH-1 5WH-1 5WH-1 5WH-1 5WH-1Type - Rows 5WS-2 5WS-2 5WS-2 5WS-2 5WS-2 5WS-2 5WS-2FPI 9 9 9 9 9 9 9Face area (sq. ft.) 42.2 42.2 42.2 42.2 42.2 42.2 42.2

Steam CoilsType - Rows 5JA-1, 2 5JA-1, 2 5JA-1, 2 5JA-1, 2 5JA-1, 2 5JA-1, 2 5JA-1, 2FPI 6, 12 6, 12 6, 12 6, 12 6, 12 6, 12 6, 12Face area (sq. ft.) 42.2 42.2 42.2 42.2 42.2 42.2 42.2

Gas Furnace2 Input (MBh) 625, 800, 812, 988, 1000, 1250, 1375, 1750, 1875, 2500Nom. Output (MBh) 500, 640, 650, 790, 800, 1000, 1100, 1400, 1500, 2000

Electric Heat3 Nom. Output (kW) 80, 100, 120, 160, 200, 240, 280, 320

Panel Filters

Type 30% PleatedArea (sq. ft.) 116.1 116.1 116.1 116.1 116.1 116.1 116.1

No. - size (in.) 11-16×20×233-16×25×2

33-16×25×211-16×20×2

11-16×20×233-16×25×2

33-16×25×211-16×20×2

11-16×20×233-16×25×2

33-16×25×211-16×20×2

11-16×20×233-16×25×2

Prefilters (for Cartridge Filters)

Type Prefilter, Standard Flow Prefilter, Medium FlowArea (sq. ft.) 56.0 56.0 56.0 64.0 64.0 64.0 64.0

No. - size (in.) 4-12×24×212-24×24×2

4-12×24×212-24×24×2

4-12×24×212-24×24×2 16-24×24×2 16-24×24×2 16-24×24×2 16-24×24×2

Type Prefilter, Medium Flow Prefilter, High FlowArea (sq. ft.) 64.0 64.0 64.0 80.0 80.0 80.0 80.0

No. - size (in.) 16-24×24×2 16-24×24×2 16-24×24×2 8-12×24×216-24×24×2

8-12×24×216-24×24×2

8-12×24×216-24×24×2

8-12×24×216-24×24×2

Cartridge Filters

Type 65% or 95% Standard Flow 65% or 95% Medium FlowArea (sq. ft.) 56.0 56.0 56.0 64.0 64.0 64.0 64.0

No. - size (in.) 4-12×24×1212-24×24×12

4-12×24×1212-24×24×12

4-12×24×1212-24×24×12 16-24×24×12 16-24×24×12 16-24×24×12 16-24×24×12

Type 65% or 95% Medium Flow 65% or 95% High FlowArea (sq. ft.) 40.0 64.0 64.0 80.0 80.0 80.0 80.0

No. - size (in.) 16-24×24×12 16-24×24×12 16-24×24×12 8-12×24×1216-24×24×12

8-12×24×1216-24×24×12

8-12×24×1216-24×24×12

8-12×24×1216-24×24×12

1. Rated in accordance with ARI Standard 3602. Gas furnace size availability is limited by minimum airflow. See Table 24 on page 40.3. Electric heat availability is limited by minimum airflow, See through. See Table 23 on page 40.


CoolIng CapaCITy daTa


Table 9: RPE/RDE 076C Low Airflow Coil

Unit DataEntering Air

Ambient Wet Bulb Temperature70 75 80

DB WB TH SH KW TH SH KW TH SH KW

24000 cfm 5 row 12 fpi

7563 855 642 49.4 844 637 51.1 832 632 52.867 917 531 50.5 906 526 52.2 893 521 53.971 986 419 51.6 973 415 53.3 961 410 55.1

8063 857 773 49.5 846 769 51.1 834 764 52.867 918 663 50.6 905 658 52.2 893 653 54.071 984 551 51.6 972 547 53.3 959 542 55.1

8563 879 879 49.9 870 870 51.5 861 861 53.367 919 795 50.6 908 791 52.3 896 786 54.071 982 683 51.6 970 678 53.4 957 674 55.1


7563 876 695 49.8 865 691 51.5 853 686 53.267 940 568 50.9 927 563 52.6 915 558 54.371 1007 438 51.9 995 434 53.7 — — —

8063 883 847 50.0 871 842 51.6 859 836 53.367 938 720 50.9 926 716 52.6 914 711 54.471 1005 591 51.9 993 586 53.7 981 582 55.5

8563 924 924 50.6 915 915 52.3 905 905 54.167 942 872 51.0 931 867 52.7 918 863 54.571 1004 744 52.0 991 739 53.7 — — —


7563 893 748 50.1 881 743 51.8 869 738 53.567 955 602 51.2 943 598 52.8 930 593 54.671 — — — — — — — — —

8063 905 905 50.4 895 895 52.1 884 884 53.867 955 776 51.2 943 771 52.9 930 766 54.771 — — — — — — — — —

8563 960 960 51.2 950 950 53.0 940 940 54.867 965 945 51.4 953 939 53.1 940 932 54.971 — — — — — — — — —

DO NOT SELECT NOMINAL CAPACITY

Table 10: RPE/RDE 076C High Airflow Coil





7563 884 700 50.0 873 695 51.6 861 690 53.367 947 571 51.0 935 566 52.7 923 562 54.471 — — — — — — — — —

8063 888 852 50.1 879 848 51.7 866 842 53.567 946 724 51.1 934 720 52.7 921 715 54.571 — — — — — — — — —

8563 932 932 50.7 922 922 52.5 912 912 54.267 952 878 51.1 938 873 52.8 926 868 54.671 — — — — — — — — —

32000 cfm5 row 12 fpi

7563 899 752 50.3 887 747 51.9 875 742 53.667 964 607 51.3 951 602 53.0 938 597 54.771 — — — — — — — — —

8063 912 912 50.5 903 903 52.2 892 892 54.067 963 781 51.3 951 776 53.0 937 771 54.871 — — — — — — — — —

8563 969 969 51.4 959 959 53.1 948 948 54.967 973 952 51.5 961 946 53.2 947 939 55.071 — — — — — — — — —


7563 913 803 50.5 901 798 52.2 889 793 53.967 975 641 51.5 963 636 53.2 950 631 55.071 — — — — — — — — —

8063 944 944 50.9 933 933 52.7 923 923 54.467 977 836 51.6 965 831 53.3 951 826 55.071 — — — — — — — — —

8563 1001 1001 51.9 990 990 53.6 979 979 55.467 998 998 51.9 988 988 53.7 977 977 55.571 — — — — — — — — —









7563 962 721 62.9 951 716 64.5 939 711 66.067 1035 598 64.6 1023 593 66.2 1011 588 67.871 1113 473 66.5 1101 469 68.0 1089 464 69.6

8063 966 870 63.0 955 865 64.5 944 860 66.167 1035 746 64.7 1024 742 66.2 1011 737 67.871 1111 621 66.5 1099 616 68.0 1086 612 69.6

8563 990 990 63.5 980 980 65.1 971 971 66.867 1035 893 64.7 1024 889 66.3 1012 884 67.871 1111 769 66.5 1098 764 68.1 1085 760 69.7


7563 985 775 63.5 973 770 65.0 961 765 66.567 1057 634 65.2 1045 629 66.7 1032 624 68.371 1136 492 67.0 1124 488 68.6 1111 483 70.2

8063 991 942 63.6 979 937 65.2 968 931 66.767 1058 804 65.2 1046 799 66.8 1034 794 68.371 1135 661 67.0 1123 657 68.6 1109 652 70.2

8563 1035 1035 64.6 1025 1025 66.2 1016 1016 67.867 1060 971 65.3 1049 966 66.9 1036 961 68.471 1133 830 67.1 1120 825 68.6 1107 821 70.2


7563 992 816 63.6 980 811 65.2 968 806 66.767 1065 662 65.3 1053 657 66.8 1040 652 68.471 1142 504 67.2 1130 500 68.7 1116 495 70.3

8063 1001 991 63.9 990 984 65.4 979 976 67.067 1063 848 65.4 1051 843 66.9 1038 838 68.571 1140 691 67.2 1128 687 68.7 1114 682 70.3

8563 1060 1060 65.2 1050 1050 66.8 1040 1040 68.467 1072 1028 65.6 1059 1022 67.1 1046 1016 68.771 1139 877 67.2 1126 873 68.8 1113 868 70.4







7563 995 781 63.7 983 776 65.2 971 771 66.867 1068 639 65.4 1056 634 67.0 1043 629 68.571 1148 497 67.3 1135 492 68.9 1122 487 70.5

8063 1001 950 63.9 990 945 65.4 978 939 67.067 1067 809 65.5 1055 804 67.0 1043 799 68.671 1146 666 67.3 1134 662 68.9 1120 657 70.5

8563 1045 1045 64.8 1035 1035 66.4 1025 1025 68.167 1070 977 65.6 1059 973 67.1 1046 968 68.771 1144 835 67.4 1132 831 68.9 1118 826 70.5


7563 1013 833 64.2 1001 828 65.7 989 823 67.267 1087 675 65.8 1075 670 67.4 1061 665 69.071 — — — — — — — — —

8063 1022 1015 64.4 1012 1009 66.0 1001 1001 67.667 1086 865 65.9 1073 860 67.5 1060 855 69.071 — — — — — — — — —

8563 1085 1085 65.8 1074 1074 67.4 1063 1063 69.067 1093 1052 66.2 1082 1047 67.7 1070 1042 69.371 — — — — — — — — —


7563 1018 873 64.3 1006 868 65.8 994 863 67.367 1090 701 65.9 1078 697 67.5 1064 692 69.171 — — — — — — — — —

8063 1041 1041 64.7 1031 1031 66.3 1020 1020 67.967 1090 908 66.0 1078 903 67.6 1065 898 69.171 — — — — — — — — —

8563 1103 1103 66.3 1093 1093 67.9 1082 1082 69.567 1102 1098 66.4 1093 1091 68.0 1081 1081 69.671 — — — — — — — — —









7563 1072 791 77.1 1060 786 78.9 1046 780 80.867 1154 659 79.6 1140 653 81.5 1125 647 83.471 1240 525 82.3 1226 519 84.2 1211 514 86.3

8063 1078 951 77.1 1064 945 78.9 1049 938 80.967 1153 817 79.6 1141 812 81.4 1125 806 83.471 1238 683 82.3 1223 677 84.2 1208 672 86.3

8563 1094 1094 77.6 1083 1083 79.5 1072 1072 81.667 1153 976 79.7 1140 970 81.6 1125 964 83.671 1237 842 82.4 1223 836 84.3 1208 831 86.3


7563 1092 832 77.6 1079 826 79.4 1065 820 81.467 1172 686 80.2 1158 680 82.1 1143 674 84.171 1258 538 83.0 1244 533 84.9 1228 527 86.9

8063 1095 1005 77.7 1081 998 79.6 1068 993 81.567 1171 860 80.2 1156 854 82.1 1142 849 84.171 1257 713 82.9 1242 707 84.9 1227 702 86.9

8563 1129 1129 78.8 1118 1118 80.7 1106 1106 82.867 1173 1034 80.3 1159 1028 82.2 1144 1022 84.271 1257 888 83.0 1243 882 84.9 1227 877 86.9


7563 1096 860 77.7 1082 854 79.5 1067 848 81.567 1175 704 80.3 1160 698 82.2 1145 692 84.271 1262 546 83.0 1247 541 85.0 1232 535 87.0

8063 1099 1042 77.9 1087 1036 79.7 1073 1029 81.767 1175 891 80.3 1160 885 82.2 1145 879 84.271 1259 733 83.0 1245 728 84.9 1229 722 87.0

8563 1146 1146 79.3 1135 1135 81.3 1123 1123 83.367 1177 1074 80.5 1163 1068 82.4 1148 1062 84.471 1261 921 83.1 1246 916 85.0 1228 909 87.0







7563 1099 826 77.8 1086 820 79.6 1071 813 81.667 1180 683 80.4 1166 677 82.3 1150 671 84.371 1269 540 83.2 1254 535 85.2 1238 529 87.2

8063 1102 995 77.9 1089 989 79.8 1075 983 81.767 1179 853 80.5 1165 847 82.4 1150 841 84.471 1266 709 83.2 1251 704 85.2 1235 698 87.2

8563 1129 1129 78.8 1118 1118 80.7 1107 1107 82.867 1180 1022 80.6 1166 1016 82.5 1151 1010 84.571 1267 880 83.3 1252 874 85.2 1234 868 87.2


7563 1120 878 78.5 1105 872 80.4 1090 866 82.367 1202 719 81.2 1187 713 83.0 1171 707 85.071 1292 559 84.0 1277 554 85.9 1261 548 87.9

8063 1126 1068 78.7 1113 1061 80.6 1098 1054 82.667 1202 910 81.2 1187 904 83.1 1172 899 85.171 1289 749 84.0 1274 744 85.9 1258 738 87.9

8563 1175 1175 80.2 1163 1163 82.2 1151 1151 84.367 1205 1099 81.4 1190 1093 83.3 1175 1087 85.371 1288 940 84.1 1273 935 86.0 1257 929 88.0


7563 1127 919 78.7 1112 913 80.6 1097 907 82.567 1207 745 81.3 1192 740 83.2 1177 734 85.271 1297 570 84.2 1282 565 86.1 1266 560 88.1

8063 1136 1116 79.1 1122 1109 80.9 1108 1100 82.967 1208 954 81.4 1194 948 83.3 1178 942 85.371 1296 779 84.1 1281 774 86.0 1264 768 88.1

8563 1198 1198 81.0 1186 1186 83.0 1174 1174 85.167 1213 1155 81.7 1201 1150 83.5 1185 1142 85.671 1293 987 84.2 1278 981 86.1 1262 976 88.1









7563 1257 916 82.9 1240 909 85.0 1221 900 87.267 1357 768 85.3 1340 760 87.5 1321 753 89.871 1463 616 88.0 1445 609 90.2 1426 602 92.5

8063 1258 1096 82.9 1242 1089 85.0 1224 1081 87.267 1359 949 85.3 1341 942 87.5 1321 934 89.871 1461 796 88.0 1442 789 90.2 1423 782 92.5

8563 1272 1269 83.3 1258 1258 85.5 1243 1243 87.867 1359 1129 85.4 1341 1122 87.6 1321 1114 89.971 1459 977 88.0 1441 970 90.2 1422 963 92.6


7563 1277 957 83.4 1260 950 85.5 1242 942 87.867 1379 795 85.9 1361 788 88.0 1342 781 90.371 1483 630 88.5 1465 623 90.8 1445 616 93.1

8063 1280 1153 83.5 1265 1146 85.6 1246 1137 87.867 1379 992 85.9 1360 984 88.1 1339 976 90.471 1482 827 88.5 1463 820 90.7 1444 812 93.0

8563 1312 1312 84.2 1299 1299 86.4 1284 1284 88.867 1379 1187 86.0 1361 1180 88.2 1342 1172 90.471 1481 1023 88.6 1463 1016 90.8 1442 1009 93.1


7563 1280 985 83.5 1263 977 85.6 1245 969 87.867 1381 812 85.9 1363 805 88.1 1344 798 90.471 1486 637 88.6 1468 631 90.8 1448 623 93.1

8063 1286 1191 83.5 1269 1183 85.7 1250 1174 87.967 1379 1021 86.0 1362 1014 88.1 1343 1007 90.471 1483 845 88.5 1465 839 90.8 1445 832 93.1

8563 1330 1330 84.6 1316 1316 86.8 1302 1302 89.267 1381 1227 86.1 1364 1220 88.2 1345 1212 90.571 1483 1055 88.7 1465 1048 90.8 1445 1041 93.2







7563 1326 1003 84.6 1309 995 86.7 1289 987 89.067 1429 830 87.2 1410 823 89.3 1390 815 91.671 1537 655 89.9 1518 648 92.1 1497 641 94.4

8063 1332 1212 84.7 1315 1204 86.9 1293 1194 89.267 1429 1039 87.2 1411 1032 89.4 1392 1024 91.771 1536 864 89.8 1516 857 92.1 1495 849 94.4

8563 1372 1372 85.6 1356 1356 87.9 1340 1340 90.367 1429 1246 87.3 1411 1239 89.5 1391 1231 91.871 1532 1071 89.9 1513 1064 92.2 1492 1057 94.5


7563 1349 1057 85.2 1331 1049 87.3 1311 1041 89.667 1451 867 87.7 1432 859 89.9 1412 852 92.271 1559 674 90.4 1540 667 92.7 1519 659 95.0

8063 1358 1285 85.4 1340 1277 87.5 1321 1268 89.867 1453 1097 87.8 1431 1089 90.0 1411 1081 92.371 1557 903 90.4 1537 896 92.6 1516 889 95.0

8563 1417 1417 86.8 1402 1402 89.1 1386 1386 91.567 1455 1324 87.9 1436 1316 90.1 1416 1308 92.571 1554 1132 90.5 1535 1125 92.7 1514 1117 95.1


7563 1354 1096 85.3 1335 1089 87.4 1316 1080 89.767 1456 892 87.8 1437 885 90.0 1416 877 92.371 1562 684 90.5 1542 678 92.7 1521 670 95.1

8063 1365 1333 85.6 1347 1323 87.8 1328 1313 90.167 1454 1138 87.9 1435 1131 90.1 1414 1123 92.471 1559 931 90.5 1539 924 92.7 1518 917 95.1

8563 1439 1439 87.4 1424 1424 89.7 1408 1408 92.167 1462 1379 88.1 1443 1370 90.3 1424 1362 92.771 1557 1177 90.6 1537 1170 92.8 1516 1163 95.1









7563 1460 1094 101.4 1445 1087 103.6 1427 1080 106.067 1566 905 104.4 1549 898 106.8 1531 891 109.271 1677 714 107.6 1660 707 110.0 1641 701 112.5

8063 1463 1317 101.5 1446 1310 103.8 1432 1303 106.267 1563 1128 104.4 1548 1122 106.8 1530 1115 109.271 1675 938 107.6 1658 931 110.0 1640 925 112.5

8563 1500 1500 102.4 1485 1485 104.9 1471 1471 107.467 1566 1353 104.6 1550 1346 106.9 1532 1339 109.471 1675 1163 107.7 1658 1156 110.1 1640 1150 112.5


7563 1483 1147 102.0 1466 1140 104.3 1448 1132 106.767 1588 941 105.1 1571 934 107.4 1552 927 109.971 1700 732 108.3 1682 726 110.7 1663 719 113.1

8063 1489 1390 102.2 1472 1383 104.5 1455 1375 107.067 1587 1186 105.1 1570 1179 107.5 1552 1172 109.971 1698 977 108.2 1680 971 110.6 1661 964 113.1

8563 1544 1544 103.7 1530 1530 106.2 1515 1515 108.767 1590 1429 105.3 1574 1422 107.7 1556 1415 110.171 1699 1223 108.3 1682 1217 110.7 1663 1210 113.2


7563 1484 1184 102.1 1467 1176 104.4 1449 1169 106.867 1590 964 105.1 1572 957 107.5 1554 950 109.971 1704 742 108.3 1686 736 110.7 1667 730 113.2

8063 1494 1437 102.4 1478 1429 104.7 1461 1420 107.167 1590 1226 105.2 1573 1220 107.6 1554 1212 110.071 1700 1004 108.3 1682 998 110.7 1663 991 113.1

8563 1563 1563 104.3 1550 1550 106.8 1535 1535 109.367 1595 1482 105.4 1578 1474 107.8 1560 1467 110.271 1698 1266 108.4 1681 1259 110.8 1662 1253 113.2







7563 1602 1177 115.9 1585 1170 118.2 1567 1162 120.767 1721 980 119.3 1703 973 121.7 1685 966 124.171 1846 780 122.9 1828 774 125.4 1809 767 127.9

8063 1607 1413 115.9 1590 1406 118.3 1572 1397 120.767 1720 1215 119.3 1703 1208 121.7 1684 1201 124.271 1845 1015 122.9 1827 1009 125.3 1807 1001 127.8

8563 1626 1626 116.6 1611 1611 119.1 1599 1599 121.667 1722 1450 119.4 1705 1443 121.8 1687 1436 124.371 1843 1250 122.9 1823 1243 125.4 1806 1236 127.9


7563 1603 1203 115.9 1586 1196 118.3 1566 1187 120.867 1721 996 119.3 1703 989 121.7 1684 981 124.271 1848 786 122.9 1829 780 125.3 1810 773 127.8

8063 1609 1449 115.9 1592 1441 118.3 1574 1433 120.867 1720 1243 119.3 1703 1236 121.7 1684 1229 124.271 1844 1033 122.9 1826 1026 125.3 1806 1019 127.8

8563 1640 1640 117.1 1630 1630 119.4 1615 1615 122.067 1723 1489 119.4 1706 1482 121.8 1687 1474 124.371 1843 1280 122.9 1825 1274 125.4 1806 1267 127.9


7563 1617 1240 116.4 1601 1233 118.8 1583 1226 121.267 1738 1022 119.8 1720 1015 122.1 1701 1007 124.671 1863 799 123.4 1847 793 125.8 1825 785 128.4

8063 1625 1500 116.5 1608 1492 118.9 1590 1484 121.467 1737 1284 119.8 1719 1277 122.2 1703 1271 124.671 1861 1061 123.4 1843 1055 125.8 1823 1048 128.3

8563 1676 1676 117.9 1663 1663 120.4 1646 1646 123.067 1742 1544 119.9 1724 1537 122.3 1705 1529 124.871 1861 1324 123.5 1842 1317 125.9 1823 1310 128.4









7563 1715 1228 130.1 1699 1220 132.5 1681 1212 135.067 1848 1032 133.7 1830 1025 136.1 1812 1017 138.671 1986 833 137.8 1968 826 140.2 1948 818 142.7

8063 1717 1463 130.1 1701 1456 132.5 1683 1448 135.067 1846 1267 133.7 1829 1260 136.1 1810 1252 138.771 1983 1067 137.7 1964 1060 140.2 1945 1053 142.7

8563 1729 1694 130.4 1713 1686 132.8 1693 1675 135.467 1843 1500 133.8 1828 1494 136.2 1809 1486 138.771 1980 1301 137.7 1961 1294 140.1 1941 1287 142.6


7563 1716 1253 130.1 1701 1246 132.5 1682 1238 134.967 1849 1047 133.8 1831 1040 136.2 1813 1032 138.771 1986 837 137.8 1967 830 140.2 1948 823 142.7

8063 1721 1500 130.1 1704 1493 132.5 1687 1485 135.067 1847 1294 133.7 1830 1287 136.1 1811 1280 138.671 1983 1084 137.7 1964 1077 140.2 1944 1070 142.7

8563 1735 1729 130.7 1721 1719 133.1 1706 1706 135.767 1847 1541 133.8 1829 1533 136.2 1811 1526 138.771 1980 1331 137.7 1961 1324 140.1 1941 1316 142.6


7563 1737 1292 130.7 1720 1285 133.1 1702 1277 135.667 1870 1074 134.3 1849 1066 136.8 1830 1058 139.371 2007 851 138.4 1988 844 140.8 1968 837 143.3

8063 1741 1553 130.7 1724 1545 133.1 1706 1537 135.667 1867 1336 134.3 1849 1329 136.8 1830 1321 139.371 2004 1113 138.4 1985 1106 140.8 1965 1099 143.3

8563 1770 1770 131.7 1755 1755 134.2 1741 1741 136.867 1868 1597 134.4 1850 1589 136.9 1831 1581 139.471 2001 1375 138.4 1985 1369 140.7 1964 1362 143.3


Table 20: RPE/RDE Condenser Fan and Spray Pump Power ConsumptionUnit Size Number of Condenser Fans Spray Pump & Condenser Fan Total kW

RPE 076C-100C 4 4.6RPE 110C-150C 6 6.2

1.5 hp Spray Pump on all units 1.8 kW per condenser fan motor


heaTIng CapaCITy daTa


Figure 26: Steam Coil, Low Capacity

Figure 27: Steam Coil, Medium Capacity

Figure 28: Steam Coil, High Capacity

Table 21: Saturated Steam PropertiesPressure (psig) Temperature (°F) Latent Heat (Btu/lb .)

2 218.5 966.15 227.1 960.6

10 239.4 952.615 249.7 945.725 266.8 934.0

Table 22: Steam Valve Selection Chart

Valve Size (inches)

Condensate Rate, lb ./hr .Steam Supply Pressurea

5 psig 10 psig 15 psig 25 psig1 196–260 301–380 391–480 571–650

1-1/4 261–380 381–560 481–700 651–9401-1/2 381–600 561–870 701–1090 940–1470

2 601–950 871–1390 1091–1750 1471–23502-1/2 951–1330 1391–1940 1751–2450 2351–3290

3 1331–2020 1941–2950 2451–3716 —Based on valve pressure drop of 80% of saturated steam supply pressure.



Figure 29: Hot Water Valve Pressure Drop RPE/RDE 076C - 150C

Figure 30: Hot Water Valve Piping Pressure Drop RPE/RDE 076C - 150C



Electric Heat Minimum cfm must satisfy two issues:

1. Maximum temperature rise is 60°F, therefore (minimum cfm = (MBh) (1000) / (1.085) (60).

2. Airflow must not be less than 22,000 cfm regardless of temperature rise.

Table 23: Electric Heat OptionsModel 80 100 120 160 200 240 280 320

208 Volt MBh 204 255 306 408 510 612 714 816230-460, 575 Volt MBh 249 312 374 499 624 748 873 998

Table 24: Gas Furnace Design Maximum Air Temperature Rise (°F) and Minimum Air Flow

Baffle Position

Maximum Temperature Rise (°F)Minimum Airflow (cfm)

Furnace Size (MBh) 500 650 790 800 1000 1100 1400 1500 2000

AMaximum Temperature Rise 100 100 61 100 61 100 61 100 61

Minimum cfm 4600 5970 12000 7340 15000 10100 21000 13700 30000Column Number* 2 3 3 3 3 4 4 7 7

BMaximum Temperature Rise 63 73 52 76 50 73 34 82 49


CMaximum Temperature Rise 55 65 46 71 40 64 33 73 40


*Column Number for Pressure Drop (See Table 26 on page 41)

Table 25: Gas Burner Connection Size (inches) and Gas Inlet Pressure (in. W.C.)

DescriptionFurnace Size (MBh Output)

500 650 790 800 1000 1100 1400 1500 2000Natural Gas (CFH) 625 812 1000 1000 1250 1375 1750 1875 2500

Minimum Gas Inlet Pressure (In. W.C.)

Standard Burner 7.00 7.00 7.50 7.50 9.00 7.00 8.00 8.00 9.0020:1 Burner 5.50 7.00 6.50 6.50 6.50 5.00 5.00 5.00 6.00

Gas Pipe Connection Size Inches (N.P.T.)

Through 0.5 psi 1.00 1.25 1.25 1.25 1.25 1.50 1.50 1.50 2.002-3 psi 1.00 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.50

5-10 psi 1.00 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25



Table 26: Furnace Pressure Drop (in. W.C.)

Airflow (cfm)Column Number (See Table 25 on page 38)

2 3 4 5 6 7 8 9 104000 0.05 — — — — — — — —6000 0.1 — — — — — — — —8000 0.17 0.14 0.08 0.07 — — — — —

10000 0.27 0.22 0.12 0.11 0.09 0.08 — — —12000 0.39 0.32 0.17 0.16 0.13 0.12 0.09 0.08 —14000 0.54 0.44 0.24 0.21 0.18 0.16 0.12 0.1 0.116000 0.7 0.57 0.31 0.28 0.24 0.2 0.15 0.13 0.1218000 0.89 0.72 0.39 0.35 0.3 0.26 0.19 0.17 0.1620000 1.09 0.89 0.48 0.43 0.37 0.32 0.24 0.21 0.222000 — 1.08 0.58 0.52 0.44 0.39 0.29 0.25 0.2424000 — — 0.69 0.62 0.53 0.46 0.34 0.3 0.2826000 — — 0.81 0.73 0.62 0.54 0.4 0.35 0.3328000 — — 0.94 0.85 0.72 0.63 0.47 0.41 0.3830000 — — 1.08 0.97 0.83 0.72 0.54 0.47 0.4432000 — — 1.23 1.11 0.94 0.82 0.61 0.53 0.534000 — — — 1.25 1.06 0.92 0.69 0.6 0.5636000 — — — — 1.19 1.04 0.77 0.68 0.6338000 — — — — — 1.15 0.86 0.75 0.740000 — — — — — — 0.95 0.84 0.7842000 — — — — — — 1.05 0.92 0.8644000 — — — — — — 1.15 1.01 0.9446000 — — — — — — — 1.11 1.0348000 — — — — — — — 1.2 1.1250000 — — — — — — — — 1.22

*Column Number for Pressure Drop (See Table 24 on page 40)


gas pIpIng sChemaTIC

gas pIpIng sChemaTIC

Figure 31: Gas Piping Schematic

Table 27: Gas Piping Descriptions

Item DescriptionFM/ETL/UL FM/ETL-C IRI

Thru 400 MBh Over 400 MBh Thru 400 MBh Over 400 MBh 400–2000 MBh1 Forced draft blower Standard Standard Standard Standard Standard

2 Combination air switch Standard Standard Standard Standard Standard

3 Pilot cock Standard Standard Standard Standard Standard

4 Pilot pressure regulator Standard Standard Standard Standard Standard

5 Pilot gas valve Standard Standard Standard Standard Standard6 Pilot orifice Standard Standard Standard Standard Standard7 Main gas orifice Standard Standard Standard Standard Standard8 Manifold pressure tap Standard Standard Standard Standard Standard9 High pressure switch — — — Standard —

10 Test cock Standard Standard Standard Standard Standard11 Leak test tap cock — — — — Standard

12 Safety shutoff valveCombination

redundant valve and pressure regulator

StandardCombination


— Standard

13 Vent to atmosphere valve, N/O — — — — Standard

14 Safety shutoff valveCombination


StandardCombination


Safety shut off valveSafety shut off valve with proof of closure

switch15 Low pressure switch — — — — Standard

16 Main pressure regulator

Combination redundant valve and pressure regulator

StandardCombination


Standard Standard

17 Main gas shutoff cock Standard Standard Standard Standard Standard

18 High pressure regulator Optional Optional Optional Optional Optional

19 Lubricated shutoff cock Optional Optional Optional Optional Optional

20 Combustion air butterfly valve Optional Optional Optional Optional Optional

21 Main gas butterfly valve Optional Optional Optional Optional Optional

22 Modulating operator Optional Optional Optional Optional Optional

Table 28: Gravity Relief Damper Air Pressure Drop—0 - 100% EconomizerExhaust cfm 20000 25000 30000 35000 40000

Size 076C-150C 0.25 0.35 0.48 0.66 0.85Note: If all exhaust must occur through the economizer gravity relief damper, and no return or exhaust fan is provided, then the building may be pressurized by the sum of the return duct pressure drop plus the gravity relief pressure.

22 109

9

6

2 5

20

4

1

12 14

1516

17

18 19

1918164

13

3

7 21

11 11

Natural gas shown. For LP gas, delete

Modulation option

Vent toatmosphere

*Low Pressure 9"–14" wc standard

*High Pressure High pressure optionrequired for inlet gas

pressure over 0.5 psig

*Minimum inlet pressure required varies with model and arrangement, from 5 to 9 inches wc

ComponenT pressure drops


ComponenT pressure drops

Table 29: Component Pressure Drops

ComponentAirflow (cfm)

26,000 30,000 34,000 38,000 42,000 46,000 50,000

Outdoor/Return Air Options1, 2

0-30% outside air hood w/damper 0.11 0.14 0.18 0.23 0.28 0.34 0.40100% outside air hood w/damper 0.03 0.03 0.04 0.06 0.07 0.08 0.09

Economizer, w/o RAF 0.15 0.20 0.26 0.32 0.39 0.46 0.54Economizer, w/RAF 0.29 0.36 0.44 0.52 0.61 0.70 0.80

Filter Options

30% pleated 0.11 0.13 0.15 0.18 0.21 0.24 0.27Prefilter, standard flow 0.24 0.31 0.37 — — — —Prefilter, medium flow 0.21 0.25 0.31 0.36 — — —

Prefilter, high flow 0.15 0.18 0.22 0.26 0.30 0.34 0.3965% cartridge, standard flow 0.43 0.55 0.68 — — — —65% cartridge, medium flow 0.35 0.44 0.54 0.65 — — —

65% cartridge, high flow 0.24 0.31 0.38 0.45 0.53 0.62 0.7195% cartridge, standard flow 0.57 0.71 0.85 — — — —95% cartridge, medium flow 0.47 0.58 0.70 0.83 — — —

95% cartridge, high flow 0.34 0.42 0.50 0.59 0.69 0.79 0.89

Plenum OptionsReturn, isolation damper 0.03 0.03 0.03 0.03 0.03 0.03 0.03

Discharge, isolation damper 0.03 0.03 0.03 0.03 0.03 0.03 0.03

Cooling Options3

Cooling diffuser 0.07 0.10 0.13 0.16 0.19 0.23 0.28Cooling coils See “Table 30: Cooling Coil Air Pressure Drop”

Heating Options

Hot water, 1-row 0.19 0.24 0.30 0.36 0.43 0.50 0.58Hot water, 2-row 0.38 0.48 0.60 0.72 0.86 1.00 1.16

Steam, 1-row, 6 fpi 0.15 0.19 0.24 0.29 0.34 0.40 0.46Steam, 1-row, 12 fpi 0.25 0.31 0.37 0.45 0.52 0.60 0.69Steam, 2-row, 6 fpi 0.30 0.39 0.48 0.58 0.68 0.80 0.92

Electric heat 0.14 0.19 0.24 0.30 0.37 0.45 0.53Gas heat See Table 26: Furnace Pressure Drop (in. W.C.) on page 41

1. Pressure drop through hood and damper is based on 30% of listed airflow.2. Pressure drop through the economizer assumes that the majority of air will be passing through the return air dampers. If large quantities of outside air are required,

pressure drops will increase causing airflow to decrease.3. A diffuser is provided on units with blow-through cooling coils, final filters or hydronic heating.

Table 30: Cooling Coil Air Pressure Drop

Unit Size Cooling CoilAirflow (cfm)

28000 30000 32000 34000 36000 38000 40000 42000 44000 46000 48000 50000

076C– 100C

DX, low airflow, 5-row, 10fpi 0.72 0.78 0.87 0.95 — — — — — — — —DX, low airflow, 5-row, 12fpi 0.85 0.92 1.02 — — — — — — — — —DX, high airflow, 5-row, 10fpi 0.60 0.65 0.72 0.79 0.86 0.93 — — — — — —DX, high airflow, 5-row, 12fpi 0.71 0.77 0.85 0.93 1.01 — — — — — — —

110C– 150C

DX, low airflow, 5-row, 10fpi 0.60 0.67 0.74 0.81 0.88 0.95 — — — — — —DX, low airflow, 5-row, 12fpi 0.72 0.80 0.87 0.95 1.04 — — — — — — —DX, high airflow, 5-row, 10fpi 0.43 0.48 0.53 0.58 0.63 0.68 0.73 0.78 0.84 0.89 0.95 1.01DX, high airflow, 5-row, 12fpi 0.52 0.57 0.62 0.68 0.74 0.80 0.86 0.92 0.98 1.05 — —

NOTE:DX coil pressure drops are based on wet coils.Pressure drop of cooling coils not shown can be found in the Daikin selection program output.


fan performanCe daTa


Return Fans & Exhaust FansFigure 32: All Sizes (2) 36” Propeller Exhaust Fans

Figure 33: All Sizes (3) 36” Propeller Exhaust Fans

DO NOT SELECT CLASS II FAN REQUIRED




Figure 34: All Sizes Standard 44” Airfoil Return

DWDI Supply FansFigure 35: RPE 076C - 100C 33"DWDI Airfoil Supply Fan

NOTE: Maximum allowable static pressure at fan bulkhead is 5.0 in (i.e., ESP plus blow-through component pressure drops cannot exceed 5.0 in).





Figure 36: RPE 076C - 150C 36" DWDI Airfoil Supply Fan


Figure 37: RPE 110C - 150C 40" DWDI Airfoil Supply Fan






SWSI Plenum Supply FansFigure 38: RDE 076C - 150C 44" SWSI Airfoil Supply Fan


Figure 39: RDE 076C - 150C 49" SWSI Airfoil Supply Fan


Airflow - cfm

0 4000 8000 12000 16000 20000 24000 28000 32000 36000 40000 44000 48000 52000

Sta

tic P

ress

ure

- in.

w.g

.

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

500

600

700

800

900

1000

1100

1200 RPM60.0 BHP50.0

7.5

10.0

15.0

20.025.0

30.0

40.0


Stat

ic P

ress

ure

- in.

w.g

.



dImensIonal daTa

dImensIonal daTa

Section Options and LocationsFigures show section options, curb lengths, and relative positions. Curb lengths (in inches) are shown below each icon.

Figure 40: RDE 076C - 150C

Exhaust/ReturnAir

OA/Hood

Plenum

72

30% OA

72

Economizer

96

Econ/RAF

96

Filter

Angular

24

Cartridge56 ft

2

076C-100COnly

OptionalBlank

Blank

DX Coil

076C-100C

53.9 ft2

24

60.8 ft2

48

110C-130C

60.8 ft2

48

76 ft2

72

140C-150C

76 ft2

72

OptionalHeat

S&HW

48

Blank

48

Supply AirFan

44 in. Dia

72

49 in. Dia

96

StandardService

Compartment

72

EvaporativeCondensing Unit

076C-100C

96

110C-150C

132

24

076C-100C

Cartridge 64 ft2

48 in.

Blank

48

Blank

24

110C-150C

Cartridge 80 ft2

72

48 in.

Blender &Angular or

56 sq ft Cartridge

72

Blender &64 sq ft Cartridge

96

48

VFDSection

48

All

Econ w/ Prop. Exh.Fans and

Back Return

Econ w/ Prop. Exh.Fans and

Bottom Return

Econ w/ Prop. Exh.& Side Return

120

96

72

(Does not affectcurb length)

(Does not affectcurb length)

dImensIonal daTa


Figure 41: RPE 076C - 150C Blow-Through Coil Section (NA Final Filters)

48

VFDSection

48

SoundAttenuator

Sound

Attenuator*

72

EvaporativeCondensing

Unit

132(Does not affect

curb length)

Air-cooledCondenser

96(Does not affect

curb length)

BlankCompartment

StandardService

Vestibule

72

DischargePlenum

DischargePlenum

Mandatory

48

48

DX CoilMandatory

076C-100C 076C-100C076C-100C

(53.9 sq. Ft.)

24

(60.8 sq. Ft.)

110C-130C

(60.8 sq. Ft.)

48

(76.0 sq. Ft.)

72

140C-150C

(76.0 sq. Ft.)

72

BlankOptional

Blank

48

Steam/Hot Water

Electric

48

Gas

48

Blank

48

HeatMandatory

48

33” Dia

72

36” Dia

96

110C-150C

110C-150C

36” & 40” Dia

96

SupplyAir Fan

Mandatory

Blank

48

BlankOptional

24

48

24

FilterMandatory

OA Hood

0

Plenum

72

30%OA

72

Economizer

96

Econ / RAF

96

Outdoor/Return AirMandatory

Econ w/ Prop. Exh.& Back Reurn

Econ w/ Prop. Exh.& Bottom Return

Econ w/ Prop. Exh.& Side Return

120

72

Angular

Cartridge56 ft

2

076C-100C Only

076C-100C

Cartridge64 ft

2

48 in.

Blank

48

Blank

24

110C-150C

Cartridge80 ft

2

72

Blender &Angular or

56 sq ft Cartridge

72


9696

All


dImensIonal daTa

Figure 42: RPE 076C - 150C Draw-Through Coil Section

48

VFDSection

48

SoundAttenuator

Sound

Attenuator*

72

Outdoor/Return AirMandatory

OutdoorAir Hood

0

Plenum

72

30%Outside Air

72

Economizer

96

Economizer w/Return Air Fan

96

FilterMandatory

BlankOptional

Blank

48

DX CoilMandatory

(53.9 sq. Ft.)

24

(60.8 sq. Ft.)

48

110C-130C

(60.8 sq. Ft.)

48

(76.0 sq. Ft.)

72

140C-150C

(76.0 sq. Ft.)

72

SupplyAir Fan

Mandatory

076C-100C 076C-100C076C-100C

33” Dia

72

36” Dia

96

110C-150C

110C-150C

36” & 40” Dia

96

HeatMandatory

Steam/Hot Water

48

Electric

48

Gas

48

Blank

48

BlankOptional

Blank

48

FinalFilter

Optional

(56 sq. Ft.)(076C-100C only)

48

(64 sq. Ft.)

72

(80 sq. Ft.)(110C-150C only)

96

Blank

48

Blank

72

DischargePlenum

Mandatory

DischargePlenum

48

StandardService

Vestibule

BlankCompartment

72

Air-cooledCondenser

96(Does not affect

curb length)

Air-cooledCondenser

132(Does not affect

curb length)

Econ w/ Prop.Exh. Fans,

Back Ret.Fans

Econ w/ Prop.Exh. Fans,

Bottom Ret.Fans

Econ w/ Prop. Exh.& Side Ret. Fans

120

72

96

Gas orElectric Heat

With Gas orElectric Heat

CoolingOnly, Steamor Hot Water

With CoolingOnly, Steamor Hot Water

EvaporativeCondensing

Unit

24

48

24

Angular

Cartridge56 ft

2

076C-100C Only

076C-100C

Cartridge64 ft

2

48 in.

Blank

48

Blank

24

110C-150C

Cartridge80 ft

2

72

Blender &Angular or

56 sq ft Cartridge

72


96

All

dImensIonal daTa


Typical DimensionsExact length varies with options and configurations.

Figure 43: Typical Dimensions—RPE 076C - 100C

Figure 44: Typical Dimensions—RPE 110C - 150C

87.099.0

62.0 38.0

81.0

Walk-inServiceCompartment

10.0

72.048.0 96.0

100.097.0

96.0

432.0528.0

96.0 24.0

288.0 Drain Connection

48.0 48.0

10.0

87.099.0

62.046.0

81.0

100.097.0

24.096.0 96.0 48.0

456.0588.0

72.0 48.0 72.0 132.0


10.010.0



dImensIonal daTa

Figure 45: Typical Dimensions—RDE 076C - 100C

Figure 46: Typical Dimensions—RDE 110C - 150C

87.099.0

62.0 38.0

81.0

100.097.0

24.0 96.072.072.048.048.096.0

360.0456.0


10.0 10.0


87.099.0

62.046.0

81.0

100.097.0

24.096.0 72.0 48.0 96.0 132.072.0

408.0540.0


10.0 10.0


dImensIonal daTa


Electrical Knockout LocationsFigure 47: RPE & RDE Main Control Panel/ Discharge Plenum

Figure 48: RPE Electric Heat Section

Figure 49: RPE 1500 - 2000MBh Gas Heat Section

Figure 50: RPE 500 - 1400MBh Gas Heat Section

Reference fromleaving air endof section

8.8

7.6

6.611.9

12.9

15.3

17.7

18.7

22.3

24.3

0.9 Dia. K.O.(Qty=4)


6.6 7.6 8.829.3

30.3

32.7


0.9 Dia. K.O.

� � � � � � � � � � � � � � � � � ��

� � � � � � ��

� � � � �

Recommended Piping Entrance (Through the

Curb)

BA

C

D

120 to 1400 MBH

Unit Size A B C D015C-040C 6.0 12.0 5.0 2.7045C-135C 8.6 6.0 4.2 4.0


dImensIonal daTa

Piping Entrance LocationsFigure 51: RPE & RDE Steam and Hot Water Heat Section

Figure 52: Water Connection Knockout Locations in Walk- In Service Compartment

DC

All Piping Entrance Holes Should Fall Within This Area

BA

Unit Size A B C D015C-030C 6.0 6.5 1.0 29.0045C-135C 6.0 9.0 1.0 37.0

A

(2)3.0" KNOCKOUTPOW ER W IRES

(2.0" PVC C O NNEC TION)3.0" KNOCKOUTW ATERDRAIN

W ATER

CONNECTION)( .75" COPPER3.0" KNOCKOUT

SUPPLYC ONTROLW IRING.88" KNOCKOUT(3)

B

72.00(REFERENCE)

V estibuleW alk-in

UnitC ondensingDischarge

A irO peningDETAIL A

SCALE 1 : 9

6.88

4.75

9.26

6.757.87

2.25

4.75

DETAIL B SCALE 1 : 9

21.50

7.87

26.50

roof Curbs


roof Curbs

Figure 53: Roof Curb

DIM 076-100C 110-150C DIM 076-100C 110-150CB 84.0 60.0 K 5.0 5.0C 62.0 62.0 L 100.0 100.0D 38.0 46.0 M 8.0 8.0E 87.0 87.0 N 2.0 2.0F 1.5 1.5 P 4.0 4.0G 6.8 6.8 Q 1.5 1.5H 81.0 81.0 R 78.8 78.8J 7.5 7.5 S 60.0 60.0

NOTE: Roof Curb must be installed level.

RDE & RPE 076-100

RDE & RPE 110-150

G

G

C

C

F

F

RAOPENING

RAOPENING

SAOPENING

SAOPENING

D

D R

Q

Q

K

K

E

F

F

B

B

B

B

N

N

P

P

J

J

K

K

H

B

B B

M

M M

L

LL

R

E

SEE FIGURE "A"

SEE FIGURE "A"

H

A A

A-A See Figure 54 on page 56

B-B See Figure 55 on page 56


roof Curbs

Figure 54: Roof Curb Cross Section A-A from Figure 53

Figure 55: Roof Curb Cross Section B-B from Figure 53

� � � ��

� � � � � �

� � � � � � � � � � � � � � � �

��

�

��

�

�

�

�

�

�

�

� �

�

�

�

� �

Key: 1 Unit Base 2 Curb Gasketing 3 2×4 Nailer Strip 4 Galvanized Curb 5 Duct Support 6 Cant Strip (Not Furnished) 7 Roofing Material (Not Furnished) 8 Rigid Insulation (Not Furnished) 9 Counterflashing (Not Furnished) 10 Flashing (Not Furnished)

�

�

�

�

�

�

�

�

��

� �

�

�

� � � ��

� �

� � � � � � �

roof Curbs


Figure 56: Units with Side Discharge - Remove Access Door and Connect Ductwork as Shown

Figure 57: Typical Cross Section - Internal Cabinet Clearance - Air in the Face

Unit Floor Base Rail

Condensing Section Walk-in Service Compartment

4272

42

3.6

3.5

1.81.8

6.0

1.82.2

5.2

8.5

3.0

85

CabinetHeight

Airflow85

AirflowRDE Units: Discharge is out the side of the Supply Fan section

RPE Units: Discharge is out the Discharge Plenum

RDE/RPE C D E F

076C-150C 91.7 96 91.8 95

C = Ceiling-to-floor (with liners)D = Door-to-door (with liners)E = Upright-to-upright, located between sectionsF = Base-to-base


eleCTrICal daTa

eleCTrICal daTa

Table 31: Condensing Unit

Unit SizeCompressor Data Condenser Fan Motors *

HP Qty VoltageRLA Each LRA Each

HP Qty FLA Each LRA EachAL PW AL PW

076C 30 2

208 88 106 470 292 1.5 4 5.5 26.0230 88 106 470 292 1.5 4 5.5 26.0460 44 53 235 141 1.5 4 2.5 13.0575 35.2 36 217 130 1.5 4 2.0 11.5

089C 35 2

208 96 112 565 340 1.5 4 5.5 26.0230 96 112 565 340 1.5 4 5.5 26.0460 48 61 283 156 1.5 4 2.5 13.0575 38.4 45 230 138 1.5 4 2.0 11.5

100C 40 2

208 116 152 660 440 1.5 4 5.5 26.0230 116 140 594 340 1.5 4 5.5 26.0460 58 71 297 170 1.5 4 2.5 13.0575 46.4 54 235 135 1.5 4 2.0 11.5

110C 25 4

208 66 77 428 250 1.5 6 5.5 26.0230 66 77 428 250 1.5 6 5.5 26.0460 33 42 214 117 1.5 6 2.5 13.0575 26.4 31 172 103 1.5 6 2.0 11.5

130C 30 4

208 88 106 470 292 1.5 6 5.5 26.0230 88 106 470 292 1.5 6 5.5 26.0460 44 53 235 141 1.5 6 2.5 13.0575 35.2 36 217 130 1.5 6 2.0 11.5

140C Comp. 1 & 3

30 2

208 88 106 470 292 1.5 3 5.5 26.0230 88 106 470 292 1.5 3 5.5 26.0460 44 53 235 141 1.5 3 2.5 13.0575 35.2 36 217 130 1.5 3 2.0 11.5

140C Comp. 2 & 4

35 2

208 96 112 565 340 1.5 3 5.5 26.0230 96 112 565 340 1.5 3 5.5 26.0460 48 61 283 156 1.5 3 2.5 13.0575 38.4 45 230 138 1.5 3 2.0 11.5

150C 35 4

208 96 112 565 340 1.5 6 5.5 26.0230 96 112 565 340 1.5 6 5.5 26.0460 48 61 283 156 1.5 6 2.5 13.0575 38.4 45 230 138 1.5 6 2.0 11.5

NOTE: 1. Data given is for individual compressors and condenser fan motors.2. AL = Across-the-Line start; PW = Part Winding start.3. Locked Rotor Amps for part winding start are for the first winding for 1 second.4. 115 volt receptacle or marine light options require separate power service.

eleCTrICal daTa


Table 32: Supply, Exhaust, and Return Fan MotorsFan Motor 208/60/3 230/60/3 460/60/31 575/60/3

HP Efficiency FLA LRA FLA LRA FLA LRA FLA LRA

5High ODP 14.8 106 14 94 7 47 5.3 38High TEFC 14.6 126 13.4 102.4 6.7 51.2 5.4 39

Premium ODP 15.7 110 13.6 96 6.8 48 5.2 38.4

7.5High ODP 22.3 137 21.6 147.4 10.8 74.2 8.2 49High TEFC 21.4 198 20.4 145.2 10.2 72.6 8.2 58

Premium ODP 22.3 185 20 122 10 80 7.4 52

10High ODP 29.7 290 28 180 14 94 11 72High TEFC 28.5 228 28.4 200 14.2 100 11.4 80

Premium ODP 29 247 25.8 192 12.9 106 10.3 76.6

15High ODP 44.4 326 40.6 301 20.3 150.5 16.2 120High TEFC 40.3 248 38.8 272 19.4 136 15.5 109

Premium ODP 43.4 269 37.8 233.6 18.9 117 14.1 94

20High ODP 57 342 50 350 25 175 20 135High TEFC 54 335 48 320 24 160 19.1 123

Premium ODP 57 377 49 322 24.5 160 18.9 130

25High ODP 69.8 427 62 382 31 191 24.3 151High TEFC 66 413 60 380 30 190 24.2 152

Premium ODP 70.5 384 61 380 30.5 190 24.2 125

30High ODP 86.5 461 75 460 37.5 230 30 177High TEFC 82 496 72 460 36.0 230 28.6 184

Premium ODP 83.3 506 72.4 448 36.2 224 29.8 178

40High ODP 117 660 102 630 51 315 40 251High TEFC 115 661 95 544 47.5 272 38 214

Premium ODP 110 660 96 630 48 315 38 245

50High ODP 138 826 124 770 62 385 49.2 303High TEFC 142 742 118 744 59 372 48 266

Premium ODP 137 955 120 752 60 376 47.5 332

60High ODP 154 991 144 872 72 442 57.4 355High TEFC 159 1035 140 1022 70 511 56 409

Premium ODP 159 1125 140 912 70 456 56 345

75High ODP 189 1240 176 1108 88 553 71 505High TEFC 196 1242 172 1132 86 566 68 447

Premium ODP 195 1240 170 1044 85 553 65.5 4441. For 380/50/3 applications, 460/60/3 motors are used. Derate nameplate by 0.85 to obtain actual horsepower.

Table 33: 1.5 HP Spray Pump for All SizesVoltage 208 230 460 575

FLA 5.3 4.8 2.4 1.9

Table 34: Optional Sump HeaterVoltage 208 230 460 575

FLA 19.2 16.7 8.7 6.9


eleCTrICal daTa

Supply Power WiringTable 35: Electric Heat

Model208/60/3 240/60/3 480/60/3 600/60/3

KW FLA Stages KW FLA Stages KW FLA Stages KW FLA Stages80 59.8 166.0 4 79.6 191.5 4 79.6 95.7 4 79.6 76.6 4

100 74.7 207.4 4 99.5 239.4 4 99.5 119.7 4 99.5 95.7 4120 89.7 249.3 4 119.4 287.2 4 119.4 143.6 4 119.4 114.9 4160 119.7 332.0 4 159.2 383.0 4 159.2 191.5 4 159.2 153.2 4200 149.5 414.7 4 199.0 478.7 4 199.0 239.4 4 199.0 191.5 4240 179.4 497.7 6 238.8 574.5 6 238.8 287.2 6 238.8 229.8 6280 209.2 580.7 4 278.6 670.2 4 278.6 335.1 4 278.6 268.1 4320 239.2 664.0 4 318.4 766.0 4 318.4 383.0 4 318.4 306.4 4

Table 36: Recommended Power Wiring

AmpacityNo . of Power

Wires per Phase

No . of Conduits Wire Gauge Insulation

Rating (0°C)

130 1 1 1 75150 1 1 1/0 75175 1 1 2/0 75200 1 1 3/0 75230 1 1 4/0 75255 1 1 250 75285 1 1 300 75310 1 1 350 75335 1 1 400 75380 1 1 500 75400 2 2 3/0 75460 2 2 4/0 75510 2 2 250 75570 2 2 300 75620 2 2 350 75670 2 2 400 75760 2 2 500 75765 3 3 250 75855 3 3 300 75930 3 3 350 75

1. Units require three-phase power supply.2. Allowable voltage tolerances:

a. 60 HertzNameplate 208V: Min. 187V, Max. 229V Nameplate 230V: Min. 207V, Max. 253V Nameplate 460V: Min. 414V, Max. 506V Nameplate 575V: Min. 518V, Max. 633V

b. 50 HertzNameplate 380V: Min. 360V, Max. 418V

3. Minimum Circuit Ampacity (MCA) Calculation:

NOTE: If a unit is provided with multiple power connections, each must be considered alone in selecting power wiring components.

MCA CalculationThe MCA is calculated based on the following formulas:

1. Units with cooling and all heating except electric heat MCA = 1.25 × largest load + sum of all other loads

2. On units with electric heat, the MCA is computed both in the cooling mode and the heating mode and the greater of the two values is used.

a. Heating ModeElectric heat less than or equal to 50kW MCA = 1.25 (sum of all loads including electric heat)Electric heat greater than or equal to 50kWMCA = 1.25 (sum of all SAF, RAF or EAF loads) plus electric heat load

NOTE: The compressor and condenser are not included in this calculation.b. Cooling Mode

MCA = 1.25 × largest load + sum of all the other loads

NOTE: Control circuit ampacity does not need to be considered in the calculation for wire sizing ampacity. If the unit is provided with one or more fan section lights, they are powered from the separate 15 amp (minimum), 120V supply required by the NEC for the unit convenience outlet.

3. Size wires in accordance with Table 310-16 of the National Electrical Code.

4. Wires should be sized for a maximum of 3% voltage drop.

http://www.nema.org/Technical/FieldReps/Pages/National-Electrical-Code.aspx

unIT WeIghTs


unIT WeIghTs

Table 37: Unit Weights

ComponentsUnit Size

076C 089C 100C 110C 130C 140C 150CBasic Unit1

RPE Lifting Weight 14007 14022 14352 18978 19387 19403RPE Operating Weight (including water) 15307 15322 15652 20278 20687 20703RDE Lifting Weight 12580 12580 12872 17472 17859 17859RDE Operating Weight (including water) 13880 13880 14172 18772 18889 18889Outdoor/return Air OptionsReturn Air Plenum Included in Basic Unit Weight0—30% O.A. Hood 262 262 262 262 262 262 262100% O.A. Hood (Deduct) (71) (71) (71) (71) (71) (71) (71)0—100% Economizer 1266 1266 1266 1266 1266 1266 1266Exhaust Air Fan Assembly2 Fans, Back Return 5663 Fans, Back Return 8262 Fans, Bottom Return 8913 Fans, Bottom Return 11512 Fans, Side Return 15813 Fans, Side Return 1841Filter Options30% Pleated 6 6 6 6 6 6 665% Cartridge — Standard Flow 69 69 69 — — — —65% Cartridge — Medium Flow 589 589 589 589 589 589 58965% Cartridge — High Flow — — — 1100 1100 1100 110095% Cartridge — Standard Flow 83 83 83 — — — —95% Cartridge — Medium Flow 605 605 605 605 605 605 60595% Cartridge — High Flow — — — 1120 1120 1120 1120Filter Options — Blow—Through Section (Final Filters)2

95% Cartridge — Standard Flow 1296 1296 1296 — — — —95% Cartridge — Medium Flow 1760 1760 1760 1760 1760 1760 176095% Cartridge — High Flow — — — 2275 2275 2275 2275Supply Air Fan Assembly33ʺ Dia Airfoil (DWDI) 989 989 989 — — — —36ʺ Dia Airfoil (DWDI) 1719 1719 1719 1719 1719 1719 171940ʺ Dia Airfoil (DWDI) — — — 1760 1760 1760 176044ʺ Dia Airfoil (SWSI) 1304 1304 1304 1304 1304 1304 130449ʺ Dia Airfoil (SWSI) 2300 2300 2300 2300 2300 2300 2300Return Air Fan Assembly44’’ Dia. Airfoil 971 971 971 971 971 971 971Evaporator Coils — Aluminum Fins, Standard Airflow Face Area3 Row, 8 Fpi 487 487 487 792 792 — —3 Row, 10 Fpi 520 520 520 830 830 — —3 Row, 12 Fpi 553 553 553 867 867 — —4 Row, 8 Fpi 588 588 588 905 905 — —4 Row, 10 Fpi 632 632 632 955 955 — —4 Row, 12 Fpi 676 676 676 1005 1005 — —5 Row, 8 Fpi 689 689 689 1022 1022 — —5 Row, 10 Fpi 744 744 744 1085 1085 — —5 Row, 12 Fpi 799 799 799 1147 1147 — —Evaporator Coils — Aluminum Fins, High Airflow Face Area3 Row, 8 Fpi 1179 1179 1179 1374 1374 1374 13743 Row, 10 Fpi 1217 1217 1217 1411 1411 1411 14113 Row, 12 Fpi 1254 1254 1254 1448 1448 1448 14484 Row, 8 Fpi 1292 1292 1292 1495 1495 1495 14954 Row, 10 Fpi 1342 1342 1342 1558 1558 1558 15584 Row, 12 Fpi 1392 1392 1392 1621 1621 1621 16215 Row, 8 Fpi 1409 1409 1409 1637 1637 1637 16375 Row, 10 Fpi 1469 1469 1469 1715 1715 1715 17155 Row, 12 Fpi 1528 1528 1528 1793 1793 1793 1793


unIT WeIghTs

ComponentsUnit Size

076C 089C 100C 110C 130C 140C 150CEvaporator Coil — Copper Fins, Standard Airflow Face Area3 Row, 8 Fpi 788 788 788 1133 1133 — —3 Row, 10 Fpi 897 897 897 1256 1256 — —3 Row, 12 Fpi 1005 1005 1005 1379 1379 — —4 Row, 8 Fpi 989 989 989 1359 1359 — —4 Row, 10 Fpi 1134 1134 1134 1523 1523 — —4 Row, 12 Fpi 1278 1278 1278 1687 1687 — —5 Row, 8 Fpi 1191 1191 1191 1591 1591 — —5 Row, 10 Fpi 1372 1372 1372 1796 1796 — —5 Row, 12 Fpi 1553 1553 1553 2001 2001 — —Evaporator Coil — Copper Fins, High Airflow Face Area3 Row, 8 Fpi 1520 1520 1520 1776 1776 1776 17763 Row, 10 Fpi 1643 1643 1643 1928 1928 1928 19283 Row, 12 Fpi 1766 1766 1766 2080 2080 2080 20804 Row, 8 Fpi 1746 1746 1746 2058 2058 2058 20584 Row, 10 Fpi 1910 1910 1910 2261 2261 2261 22614 Row, 12 Fpi 2074 2074 2074 2463 2463 2463 24635 Row, 8 Fpi 1978 1978 1978 2340 2340 2340 23405 Row, 10 Fpi 2183 2183 2183 2594 2594 2594 25945 Row, 12 Fpi 2388 2388 2388 2847 2847 2847 2847Electric Heat80 Kw 384 384 384 384 384 384 384100 Kw 390 390 390 390 390 390 390120 Kw 395 395 395 395 395 395 395160 Kw 407 407 407 407 407 407 407200 Kw 436 436 436 436 436 436 436240 Kw 448 448 448 448 448 448 448280 Kw 460 460 460 460 460 460 460320 Kw 472 472 472 472 472 472 472Gas Furnace500, 640 Mbh 481 481 481 481 481 481 481650, 790 Mbh 579 579 579 579 579 579 579800, 1000 Mbh 650 650 650 650 650 650 6501100, 1400 Mbh 845 845 845 845 845 845 8451500 Mbh 1067 1067 1067 1067 1067 1067 10672000 Mbh 1082 1082 1082 1082 1082 1082 1082Hot Water Coil1 Row 424 424 424 424 424 424 4242 Row 531 531 531 531 531 531 531Steam Coil1 Row, 6 Fpi 379 379 379 379 379 379 3791 Row, 12 Fpi 412 412 412 412 412 412 4122 Row, 6 Fpi 485 485 485 485 485 485 485Accessory ItemsVariable Frequency Drive — SAF3 150 150 150 150 150 150 150Variable Frequency Drive — RAF3 100 100 100 100 100 100 100Blender (Low cfm)3 632 632 632 632 632 632 632Blender (High cfm)3 731 731 731 731 731 731 731Plenum OptionsBurglar Bars — Discharge 69 69 69 81 81 81 81Burglar Bars — Return 114 114 114 114 114 114 114Isolation Dampers — Discharge 106 106 106 125 125 125 125Isolation Dampers — Return 172 172 172 172 172 172 172Blank Section4—foot, Unlined 651 651 651 651 651 651 6516—foot, Unlined 1038 1038 1038 1038 1038 1038 1038Insulation Liners2’’, 1.5 Lb. density insulation with Solid Liners:

30 30 30 30 30 30 30Weight per Foot of Unit Length4

Sound AttenuatorsSound Attenuator with Gas or Electric Heat 1708Sound Attenuator without Gas or Electric Heat 1321

1. Basic unt consists of return air plenum, angular filter section, supply air fan section without fan or motor, cooling section without coil, condensing unit and service vestibule.2. Final filter option includes liners in the filter section and discharge plenum.3. Does not include weight of optional 4 ft. blank section.4. Excluding condensing unit section and vestibule.

unIT WeIghTs


Fan Motor WeightsTable 38: Fan Weights

Motor HPWeight (lbs .)

Open Drip-Proof Totally Enclosed5 82 85

7.5 124 14010 144 17015 185 23520 214 30025 266 33030 310 39040 404 51050 452 57060 620 85075 680 910

Roof Curb WeightsCalculate the weight of the unit curb using the following equation and adding additional weights accordingly.

Unit Size Weight FormulaAll Base curb wt. (lb.) = 0.74 [200 + 2 × curb length (in)]

NOTE: Curb length does not include condenser length.

Additional Weights:1. Cross supports:

• For curb length greater than 144 in, add 30 lb




2. For condenser section support rail, add 139 lb. for sizes 076C-100C and 278 lb. for sizes 110C to 150C.

Example: RPE100C

Component LbsBasic unit . . . . . . . . . . . . . . . . . . . . . . . . . 15,322Economizer . . . . . . . . . . . . . . . . . . . . . . . . 1,26630% efficiency filters. . . . . . . . . . . . . . . . . . . . . . 6Burglar bars, supply . . . . . . . . . . . . . . . . . . . . . .69Burglar bars, return . . . . . . . . . . . . . . . . . . . . . 11436" airfoil supply fan . . . . . . . . . . . . . . . . . . . . . 1,71944" airfoil return fan . . . . . . . . . . . . . . . . . . . . . 971DX coil - 5-row 12 FPI, high airflow aluminum fins . . . . . . . . . 1,528Gas heat - 1000 mbh . . . . . . . . . . . . . . . . . . . . 650SAF motor - 40 HP . . . . . . . . . . . . . . . . . . . . . 404RAF motor - 15 HP . . . . . . . . . . . . . . . . . . . . . 185Liners . . . . . . . . . . . . . . . . . . . . . . . . . . 1080 23,314

Liner Calculations FtSection - Economizer . . . . . . . . . . . . . . . . . . . . . 8Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Supply fan. . . . . . . . . . . . . . . . . . . . . . . . . . 8Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4DX coil . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Discharge plenum. . . . . . . . . . . . . . . . . . . . . . . 4Service Compartment . . . . . . . . . . . . . . . . . . . . . 6× 30 lbs. per ft. . . . . . . . . . . . . . . . . . . . . . . . .36 1080

NOTE: Roof curb weight should be considered for structural purposes.


engIneerIng guIde speCIfICaTIon


RoofPak Singlezone Heating and Cooling Unit(s)

GeneralA. The complete unit shall be [ETL/MEA] [ETL-Canada]

listed. [The burner and gas train for the unit furnace shall be [IRI/FIA] [FM] approved.]

B. Each unit shall be specifically designed for outdoor rooftop application and include a weatherproof cabinet. Units shall be of a modular design with factory installed access sections available to provide maximum design flexibility. Each unit shall be [completely factory assembled and shipped in one piece] [split between the supply fan section and the heat section]. All packaged units shall be shipped fully charged with Refrigerant [22] [407C].

C. The unit shall undergo a complete factory run test prior to shipment and factory test sheets shall be available upon request. The factory test shall include final balancing of the supply [and return] fan assemblies, a refrigeration circuit run test, a unit control system operations checkout, [test and adjustment of the gas furnace], a unit refrigerant leak test and a final unit inspection.

D. All units shall have decals and tags to indicate caution areas and aid unit service. Unit nameplates shall be fixed to the main control panel door. Electrical wiring diagrams shall be attached to the control panels. Installation, operating and maintenance bulletins and start-up forms shall be supplied with each unit.

E. Performance: All scheduled capacities and face areas are minimum accepted values. All scheduled amps, kW, and HP are maximum accepted values that allow scheduled capacity to be met.

F. Warranty: The manufacturer shall provide 12-month parts only warranty. [The manufacturer will provided extended 48-month, parts only, warranty on the compressor.] Defective parts will be repaired or replaced during the warranty period at no charge. The warranty period shall commence at startup or six months after shipment, whichever occurs first.

Cabinet, Casing and FrameA. Standard double-wall construction for all side wall

access doors and floor areas shall be provided with 22 gauge solid galvanized steel inner liners to protect insulation during service and maintenance. Insulation shall be a minimum of 1" thick, 3/4 lb. density neoprene coated glass fiber. Unit cabinet shall be designed to operate at total static pressures up to 6.5 inches w.g. Insulation on ceiling and end panels shall be secured with adhesive and mechanical fasteners. [Heavy gauge solid galvanized steel liners shall be provided throughout, allowing no exposed insulation within the air stream. All cabinet insulation, except floor panels, shall be a nominal 2" thick, 1½ lb. density, R6.5, glass fiber.] [A combination of solid and perforated galvanized steel liners shall be provided throughout. Perforated liners to be used in the supply and return air plenums to provide improved sound attenuation. All cabinet insulation, except floor panels, shall be a nominal 2" thick, 1½ lb. density, R6.5, glass fiber.] All floor panels shall include [double wall construction and include a nominal 2" thick, 1½ lb. density, R6.5 glass fiber insulation.] [a minimum 1" thick, 3 lb. density, R4.2 glass fiber glass insulation.]

B. Exterior surfaces shall be constructed of pre-painted galvanized steel for aesthetics and long term durability. Paint finish to include a base primer with a high quality, polyester resin topcoat of a neutral beige color. Finished surface to withstand a minimum 750-hour salt spray test in accordance with ASTM B117 standard for salt spray resistance. Service doors shall be provided on both sides of each section in order to provide user access to all unit components. Service doors shall be constructed of heavy gauge galvanized steel with a gauge galvanized steel interior liner. All service doors shall be mounted on multiple, stainless steel hinges and shall be secured by a latch system that is operated by a single, flush mounted handle. The latch system shall feature a staggered engagement for ease of operation. Removable panels, or doors secured by multiple, mechanical fasteners are not acceptable.

C. The unit base frame shall be constructed of 13-gauge pre-painted galvanized steel. The unit base shall overhang the roof curb for positive water runoff and shall have a formed recess that seats on the roof curb gasket to provide a positive, weathertight seal. Lifting brackets shall be provided on the unit base with lifting holes to accept cable or chain hooks.



Supply and Return FansA. All fan assemblies shall be statically and dynamically

balanced at the factory, including a final trim balance, prior to shipment. All fan assemblies shall employ solid steel fan shafts. Heavy-duty pillow block type, self-aligning, grease lubricated ball bearings shall be used. Bearings shall be sized to provide an L-50 life at 200,000 hours. The entire fan assembly shall be isolated from the fan bulkhead and mounted on [rubber in shear isolators] [spring isolators] [spring isolators with seismic restraints]. [Fixed] [Adjustable] pitch V-belt drives with matching belts shall be provided. V-belt drives shall be selected at [the manufacturer’s standard service factor] [1.5 times fan brake horsepower].

B. Fan motors shall be heavy-duty 1800 rpm [open drip-proof (ODP)] [totally enclosed TEFC] type with grease lubricated ball bearings. [Motors shall be high efficiency and meet applicable EPACT requirements.] [Motors shall be premium efficiency.] Motors shall be mounted on an adjustable base that provides for proper alignment and belt tension adjustment.

C. Airfoil supply fans1. RDE supply fan shall be single width, single inlet

(SWSI) airfoil centrifugal fan. The fan wheel shall be Class II construction with aluminum fan blades continuously welded to the back plate and end rim. Fans shall be mounted using shafts and hubs with mating keyways.

2. RPE supply fan shall be double width, double inlet (DWDI) airfoil centrifugal fan. All fans shall be mounted using shafts and hubs with mating keyways. Fans shall be Class II type and fabricated from heavy-gauge aluminum. Fan blades shall be continuously welded to the back plate and end rim.

D. Airfoil return fansA single width, single inlet (SWSI) airfoil centrifugal return air fan shall be provided. The fan shall be Class II construction. The fan wheel shall be Class II construction and fabricated from heavy-gauge aluminum with fan blades continuously welded to the back plate and end rim. The fan shall be mounted using shafts and hubs with mating keyways. Exhaust fans are not acceptable.

E. [The supply air fan and return air fan sections shall be provided with an expanded metal belt guard.]

Propeller Exhaust FansA. Belt drive propeller exhaust fans shall be provided.

Propellers shall be constructed with fabricated steel, and shall be securely attached to fan shafts. All propellers shall be statically and dynamically balanced. Motors shall be permanently lubricated, heavy-duty type, carefully matched to the fan load. Ground and polished steel fan shafts shall be mounted in permanently lubricated, sealed ball bearing pillow blocks. Bearings shall be selected for a minimum (L10) life in excess of 100,000 hours at maximum cataloged operating speeds. Drives shall be sized for a minimum of 105 percent of driven horsepower.Pulleys shall be of the fully machined cast iron type, keyed and securely attached to wheel and motor shafts. Motor sheaves shall be adjustable for system balancing. Drive frame and panel assemblies shall be galvanized steel. Drive frames shall be formed channels and panels shall be welded construction. The axial exhaust or supply fans shall bear the AMCA Certified Ratings Seals for both sound and air performance. Return fans are not acceptable.

B. The exhaust fans shall be controlled by a variable frequency drive.

C. [The exhaust air fan sections shall be provided with an expanded metal belt guard.]

Variable Air Volume ControlA. An electronic variable frequency drive shall be

provided for the supply [and return] air fan. [Two independent drives, one per fan, shall be provided.] Each drive shall be factory installed downstream of the filters in a manner that the drive(s) are directly cooled by the filtered, mixed air stream. Drives shall meet UL Standard 95-5V and the variable frequency drive manufacturer shall have specifically approved them for plenum duty application. The completed unit assembly shall be listed by a recognized safety agency, such as ETL. Drives are to be accessible through a hinged door assembly complete with a single handle latch mechanism. Mounting arrangements that expose drives to high temperature, unfiltered ambient air is not acceptable.

B. The unit manufacturer shall install all power and control wiring. [A manual bypass contactor arrangement shall be provided. The bypass arrangement will allow fan operation at full design CFM, even if the drive has been removed for service]. [Line reactors shall be factory installed for each drive].



C. The supply air fan drive output shall be controlled by the factory installed main unit control system and drive status and operating speed shall be monitored and displayed at the main unit control panel. [The supply and return/exhaust fan drive outputs shall be independently controlled in order to provide the control needed to maintain building pressure control. Supply and return/exhaust air fan drives that are slaved off of a common control output are not acceptable.]

D. All drives shall be factory run tested prior to unit shipment.

ElectricalA. Unit wiring shall comply with NEC requirements

and with all applicable UL standards. All electrical components shall be UL recognized where applicable. All wiring and electrical components provided with unit shall be number and color-coded and labeled according to the electrical diagram provided for easy identification. The unit shall be provided with a factory wired weatherproof control panel. Unit shall have a [single] [dual] point power terminal block for main power connection. A terminal board shall be provided for low voltage control wiring. Branch short circuit protection, 115 volt control circuit transformer and fuse, system switches and high temperature sensor shall also be provided with unit. Each compressor and condenser fan motor shall be furnished with contactors and inherent thermal overload protection. Supply and return fan motors shall have contactors and external overload protection. Knockouts shall be provided in the bottom of the main control panels for field wiring entrance. All 115-600 voltage wire shall be protected from damage by raceways or conduit.

B. [A factory installed and wired marine service light, with switch and receptacle, shall be provided in the supply air and return/exhaust fan section. The separate, main unit service receptacle electrical circuit shall also power the light circuit.]

C. [Part winding start shall be provided for the unit compressors to reduce inrush current at start-up.]

D. [Power factor capacitors shall be factory mounted and wired to the unit compressors. Power factor capacitors shall be selected to provide correction to a minimum of 0.90.]

E. [Phase failure and under voltage protection on three-phase motors shall be provided to prevent damage from single phasing, phase reversal, and low voltage conditions.]

F. [Ground fault protection shall be provided to protect against arcing ground faults.]

G. Further options1. Factory mounted smoke detectors shall be

factory installed in the [supply air opening] [supply and return air openings]. Smoke detectors to be ionization type, which responds to invisible products of combustion without requiring the sensing of heat, flame or visible smoke. Upon sensing smoke, the unit shall provide a control output for use by building management system.

2. Unit to have factory-mounted UV lights located on the leaving air side of the cooling coil. Unit to have view port to allow for visual indication of operation through UV resistant glass. Unit to have door interlocks on each door accessing UV light. Interlock to kill power to UV light when door is opened.Lamp and fixture to consist of a housing, power source, lamp sockets, and lamp. All components are to be constructed to withstand typical HVAC environments and are UL/C-UL listed. Housings are to be constructed of type 304 stainless steel and are to be equipped with both male and female power plugs with one type at each end to facilitate simple fixture-to-fixture plug-in for AC power.Power source shall be an electric, rapid-type with overload protections and is to be designed to maximize radiance and reliability at UL/C-UL listed temperatures of 55°F-135°F. Power source will include RF and EMI suppression.Sockets shall be medium bi-pin, single click safety, twist lock type and are to constructed of a UVC-resistant polycarbonate.Lamp shall be a high output, hot cathode, T8 diameter, medium bi-pin that produces UVGI of 254 nm. Each tube produces the specified output at 500 fpm and air temperatures of 55°F–135°F.

3. A [single] [dual] non-fused disconnect switch[es] shall be provided for disconnecting electrical power at the unit. [The second switch will service the condensing section.] Disconnect switches shall be mounted internally to the control panel and operated by an externally mounted handle. Externally mounted handle is designed to prohibit opening of the control panel door without the use of a service tool.

4. A GFI 115 volt service outlet shall be provided.a. [The outlet requires a separate 115 volt field-

powered source]b. [The outlet shall be powered by the unit and

include its own disconnect and short circuit protection.]



Cooling and Heating SectionsCooling

A. [The cooling coil section shall be installed in a blow- through configuration, downstream of the supply air fan. A factory-tested diffuser shall be used in order to provide air distribution across the cooling coil. A blow-through coil is specified to minimize the impact of fan motor heat.] [The cooling coil section shall be installed in a draw-through configuration, upstream of the supply air fan.] The coil section shall be complete with factory piped cooling coil and sloped drain pan. Hinged access doors on both sides of the section shall provide convenient access to the cooling coil and drain pan for inspection and cleaning.Submittals must demonstrate that scheduled unit leaving air temperature (LAT) is met, that fan and motor heat temperature rise (TR) have been considered, and scheduled entering air temperature (EAT) equals mixed air temperature (MAT)Draw-through cooling–Scheduled EAT equals cooling coil EAT and scheduled unit LAT equals cooling coil LAT plus TR.Blow-through cooling–Cooling coil EAT equals scheduled EAT plus TR and scheduled unit LAT equals cooling coil LAT.Direct expansion (DX) cooling coils shall be fabricated of seamless 1/2" diameter high efficiency copper tubing that is mechanically expanded into high efficiency [aluminum] [copper] plate fins. Coils shall be a multi-row, staggered tube design with a minimum of [3] [4] [5] rows and a maximum of [8] [10] [12] fins per inch. All units shall have two independent refrigerant circuits and shall use an interlaced coil circuiting that keeps the full coil face active at all load conditions.All coils shall be factory leak tested with high pressure air under water.

B. A [painted galvanized steel,] [stainless steel,] positively sloped drain pan shall be provided with the cooling coil. The drain pan shall extend beyond the leaving side of the coil and underneath the cooling coil connections. The drain pan shall have a minimum slope of 1/8" per foot to provide positive draining. The drain pan shall be connected to a threaded drain connection extending through the unit base. Units with stacked cooling coils shall be provided with a secondary drain pan piped to the primary drain pan.

Hot Water Heating OptionC. A [1] [2] row hot water heating coil shall be factory

installed in the unit heat section. Coils shall be fabricated of seamless 5/8" diameter copper tubing that is mechanically expanded into high efficiency HI F rippled and corrugated aluminum plate fins. All coil vents and drains shall be factory installed. [The hot water heat section shall be installed downstream (RFS/RPS) of the supply air fan. A factory-tested diffuser shall be used in order to provide air distribution across the coil.] [The hot water heat section shall be installed upstream (RDT) of the supply air fan.] Hinged access doors shall provide convenient access to the coil and valve for inspection and cleaning.[A factory installed three-way modulating control valve and spring return valve actuator shall provide control of the hot water coil. The valve actuator shall be controlled by the factory installed main unit control system][[Ethylene glycol] [propylene glycol] shall be added to the hot water circuit to protect against coil freeze-up.][A factory installed, non-averaging type freezestat shall be factory installed to provide some protection against coil freeze-up.]Coils shall be factory leak tested with high pressure air under water.

Steam Heating OptionD. A [1 row, 6 fin per inch] [1 row, 12 fin per inch] [2

row, 6 fin per inch] fin per inch team heating coil shall be factory installed in the unit heat section. Coils shall be fabricated of seamless 5/8" diameter copper tubing that is mechanically expanded into high efficiency HI F rippled and corrugated aluminum plate fins. Steam coils shall be of the jet distributing type. [The steam heat section shall be installed downstream (RFS/RPS) of the supply air fan. A factory-tested diffuser shall be used in order to provide air distribution across the coil.] [The steam heat section shall be installed upstream (RDT) of the supply air fan.] Hinged access doors shall provide convenient access to the coil and valve for inspection and cleaning.[A factory installed two-way modulating control valve and spring return valve actuator shall provide control of the steam coil. The valve actuator shall be controlled by the factory installed main unit control system][A factory installed, non-averaging type freezestat shall be factory installed to provide some protection against coil freeze-up.]Coils shall be factory leak tested with high pressure air under water.



Gas Heating OptionE. A natural gas fired furnace shall be installed in

the unit heat section. The heat exchanger shall include a type 321 stainless steel cylindrical primary combustion chamber, a type 321 stainless steel header, type 321 stainless steel] secondary tubes and type 321stainless steel turbulators. Carbon and aluminized steel heat exchanger surfaces are not acceptable. The heat exchanger shall have a condensate drain. Clean out of the primary heat exchanger and secondary tubes shall be accomplished without removing casing panels or passing soot through the supply air passages. The furnace section shall be positioned downstream of the supply air fan.[The furnace will be supplied with a modulating forced draft burner. The burner shall be controlled for low fire start. The burner shall be capable of continuous modulation between 33% and100% of rated capacity and shall operate efficiently at all firing rates.][The furnace shall be supplied with a Daikin SuperMod forced draft burner capable of continuous modulation between 5% and 100% of rated capacity, without steps. The burner shall operate efficiently at all firing rates. The burner shall have proven open damper low-high-low pre-purge cycle, and proven low fire start. The combustion air control damper shall be in the closed position during the OFF cycle to reduce losses.]The burner shall be specifically designed to burn natural gas and shall include a microprocessor based flame safeguard control, combustion air proving switch, pre-purge timer and spark ignition. The gas train shall include redundant gas valves, [maximum 0.5 psi pressure regulator] [2–3 psi high pressure regulator] [5–10 psi high pressure regulator], shutoff cock, pilot gas valve, pilot pressure regulator, and pilot cock. The burner shall be rated for operation and full modulation capability at inlet gas pressures down to [7.0. W.C. (models 200–650)] [8.0 in. W.C. (models 790, 800, 1100, 1400, 1500)] [9.0 in. W.C. (models 100 and 2000)].The gas burner shall be controlled by the factory installed main unit control system.The burner shall be fired, tested and adjusted at the factory. Final adjustments shall be made in the field at initial start-up by a qualified service technician to verify that installation and operation of the burner is according to specifications.

Electric Heating OptionStaged electric heating coils shall be factory installed in the unit heat section. Heating coils shall be constructed of a low watt density, high nickel chromium alloy resistance wire, mechanically stacked and heli-arc welded to corrosion resistant terminals. A corrosion resistant heavy gauge rack shall support the elements. Safety controls shall include automatic reset high limit control for each heater element with manual reset backup line break protection in each heater element branch circuit (NOTE: Manual reset not provided when ETL-Canada label is provided). Heating element branch circuits shall be individually fused to maximum of 48 Amps per NEC requirements. The electric heat section shall be positioned downstream of the supply air fan.The electric heat elements shall be controlled by the factory installed main unit control system.

FiltersDraw-Through Filters

A. Unit shall be provided with a draw-through filter section.The filter section shall be supplied complete with the filter rack as an integral part of the unit. The draw-through filter section shall be provided with [panel] [cartridge] filters.

B. 2" thick AmericanAirFilter 30% efficient pleated panel filters shall be provided. Filters shall be frame mounted and shall slide into galvanized steel racks contained within the unit. Filters shall be installed in an angular arrangement to maximize filter area and minimize filter face velocity. Filters shall be accessible from both sides of the filter section.

C. [12" deep [60-65%] [90-95%] efficient, UL Std. 900, Class 1, AmericanAirFilter cartridge filters shall be provided. 2" panel, 30% efficient pre-filters shall be included. Cartridge filters shall consist of filter media permanently attached to a metal frame and shall slide into a gasketed, extruded aluminum rack contained within the unit. The filter rack shall have secondary gasketed, hinged end panels to insure proper sealing. Filters shall be accessible from both sides of the filter section.]

D. [[30% efficient pleated] [60-65% efficient cartridge] [90- 95% efficient cartridge] filters shall be provided with INTERSEPT antimicrobial treatment.]



Final Filters OptionE. Final Filters-Unit shall be provided with a final filter

section downstream of the supply fan. Unit to have 40" of unit length between the fan discharge and the final filters to allow for proper air distribution. The final filter section shall be supplied complete with the filter rack as an integral part of the unit. The final filter section shall be provided with cartridge filters.

F. 12" deep 90-95% efficient, UL Std. 900, Class 1, AmericanAirFilter cartridge filters shall be provided. [For units with gas or electric heat, AmericanAirFilter High Temperature cartridge filters rated for 500 F shall be used.] Cartridge filters shall consist of filter media permanently attached to a metal frame and shall slide into a gasketed, extruded aluminum rack contained within the unit. The filter rack shall have secondary gasketed, hinged end panels to insure proper sealing. Filters shall be accessible from both sides of the filter section.

G. [Filters shall be provided with INTERSEPT antimicrobial treatment.]

Outdoor/Return Air SectionReturn Air Plenum

A. Unit shall be provided with a return air plenum for handling 100% re-circulated air. The 100% return air plenum shall allow return air to enter from the [bottom] [back] of the unit.

Return Air Plenum with 0 to 30% Outdoor Air HoodB. A return air plenum shall be provided with a 0 to

30% outdoor air hood. The hood shall allow outdoor air to enter at the back of the return air plenum. The outdoor air hood shall be factory installed and constructed from galvanized steel finished with the same durable paint finish as the main unit. The hood shall include a bird screen to prevent infiltration of foreign materials and a rain lip to drain water away from the entering air stream. The return air plenum shall allow return air to enter from the [bottom] [back] of the unit.

C. Daikin UltraSeal low leak dampers shall be provided. Damper blades shall be fully gasketed and side sealed and arranged horizontally in the hood. Damper leakage shall be less than 1.5 cfm/ft2 at 1" static pressure differential. Leakage rate to be tested in accordance with AMCA Standard 500. Damper blades shall be operated from multiple sets of linkages mounted on the leaving face of the dampers. [Control of the dampers shall be from a factory installed, two-position actuator.]

0%-100% Outdoor Air EconomizerD. Unit shall be provided with an outdoor air

economizer section. The 0 to 100% outside air economizer section shall include outdoor, return, and exhaust air dampers. Outdoor air shall enter from both sides of the economizer section through horizontal, louvered intake panels complete with rain lip and bird screen. The floor of the outdoor air intakes shall provide for water drainage. The economizer section shall allow return air to enter from the [bottom] [back] of the unit.The outside and return air dampers shall be sized to handle 100% of the supply air volume. The dampers shall be opposed sets of parallel blades, arranged vertically to converge the return air and outdoor air streams in multiple, circular mixing patterns. Daikin UltraSeal low leak dampers shall be provided. Damper blades shall be fully gasketed and side sealed. Damper leakage shall be less than 1.5 cfm/ft2 at 1" static pressure differential. Leakage rate to be tested in accordance with AMCA Standard 500. Damper blades shall be operated from multiple sets of linkages mounted on the leaving face of the dampers.A barometric exhaust damper shall be provided to exhaust air out of the back of the unit. [An electric actuator shall provide positive closure of the exhaust damper.] A bird screen shall be provided to prevent infiltration of rain and foreign materials. Exhaust damper blades shall be lined with urethane gasketing on contact edges.Control of the dampers shall be by a factory installed actuator. Damper actuator shall be of the modulating, spring return type. [An adjustable enthalpy control shall be provided to sense the dry-bulb temperature and relative humidity of the outdoor air stream to determine if outdoor air is suitable for “free” cooling.] [A comparative enthalpy control shall be provided to sense and compare enthalpy in both the outdoor and return air streams to determine if outdoor air is suitable for “free” cooling.] If outdoor air is suitable for “free” cooling, the outdoor air dampers shall modulate in response to the unit’s temperature control system.

DesignFlow Minimum Ventilation Air Control OptionE. Daikin DesignFlow precision ventilation control

system shall be provided as an integral part of the 0-100% outdoor air economizer system. It shall directly measure the total mass volume of air flowing through the outdoor air intakes. The unit’s control panel shall automatically adjust the outdoor damper position to maintain minimum outdoor air cfm. The airflow station shall be capable of accurately measuring minimum outdoor air volume within 5% to continuously satisfy the requirements of ASHRAE 62 - 1999. Third party verification of measurement accuracy shall be verified by a nationally recognized independent testing agency.



100% OA Hood OptionF. Unit shall be provided with a 100% outdoor air hood.

The 100% outdoor air hood shall allow outdoor air to enter from the back of the unit, at the draw-through filter section. The outdoor air hood shall be factory installed and constructed from galvanized steel finished with the same durable paint finish as the main unit. The hood shall include a bird screen to prevent infiltration of foreign materials and a rain lip to drain water away from the entering air stream.

G. Daikin UltraSeal low leak dampers shall be provided. Damper blades shall be fully gasketed and side sealed and arranged vertically in the hood. Damper leakage shall be less than1.5 cfm/ft2 at 1" static pressure differential. Leakage rate to be tested in accordance with AMCA Standard 500. Damper blades shall be operated from multiple sets of linkages mounted on the leaving face of the dampers. [Control of the dampers shall be from a factory installed, two-position actuator.]

Access Section OptionA. Unit shall be provided with factory installed access

sections located [upstream] [downstream] [upstream and downstream] of the supply air fan, as shown on the unit drawing. Access sections shall have hinged access doors on both sides of the section and shall have the same construction features as the rest of the unit.

Static Air Mixer (Air Blender) OptionA. A static air mixing device shall be factory installed

between the outside/return air section and the filter section. The static air mixer shall be installed with proper upstream and downstream distances. The mixing device shall perform at face velocities from 500 fpm through 2500 fpm with no loss in mixing performance. The mixing device shall provide mixing and distribution of the outside and return air streams to minimize the threat of coil freeze-up during operation and to improve temperature control. Acceptable manufacturers are Blender Products or Kees.

Sound Attenuator OptionA. A section shall be provided by the air handling

unit manufacturer as an integral part of the unit to attenuate fan noise at the source. Variable range of splitter thickness and air passages provided to optimize acoustic performance and energy conservation. The attenuators shall have perforated double-wall construction and be located downstream of the supply fan. Hinged access doors shall be provided on both sides of the section and shall have the same construction as the rest of the unit. [Sound attenuator shall have Tedlar coating for moisture protection]. Combustion rating for the silencer acoustic fill shall not be greater than the following UL fire hazard classification:Flame Spread ..........................................15Fuel Contributed ........................................0Smoke Developed .....................................0Tested in accordance with UL Test Procedure 723.

B. The attenuator rating shall be determined using the duct-to- reverberant room test method which provides for airflow in both directions through the attenuator in accordance with latest version of ASTM specification E-477. Insertion Loss Ratings (ILR) shall be:

Octave Band at Center Frequency (Hz)63 125 250 500 1000 2000 4000 8000

ILR (no Tedlar) 7 9 22 28 29 29 18 12ILR (Tedlar coating) 6 10 20 16 14 18 13 12

C. Manufacturer shall provide certified test data on dynamic insertion loss, self-generated sound power levels, and aerodynamic performance for reverse and forward flow test conditions to the design professional in writing as least 10 days prior to the bid.

Discharge and Return Plenum AccessoriesA. A supply air discharge plenum shall be provided.

[The plenum section shall be lined with a perforated acoustic liner to enhance sound attenuation.] The plenum section shall have a [bottom] [side] discharge opening.

B. A combination burglar bar/safety grate shall be provided in the [bottom return air opening] [bottom supply air opening] [bottom return and supply air openings]. Burglar bar/safety grate shall be made of 3/4" diameter ground and polished steel shaft welded to a galvanized steel frame.

C. Isolation dampers shall be provided in the [bottom return air opening] [bottom supply air opening] [bottom return and supply air openings]. [A two-position actuator shall be provided to close the dampers when the fans are not running.]



Condensing Unit SectionA. The condensing section shall be open on the

sides and bottom to provide access and to allow airflow through the coils. Condenser coils shall be multi-row and fabricated from 3/8" high efficiency rifled copper tubing mechanically bonded to high efficiency aluminum fins. Each condenser coil shall be factory leak tested with high-pressure air under water. [Condenser coil guards shall provide protection from incidental contact to coil fins. Coil guards to be constructed of cross wire welded steel with PVC coating.]

B. Condenser coils shall be multi-row and fabricated from 5/8" high efficiency rifled copper tubing mechanically bonded to polymer, corrosion resistant, tube sheet support. The condenser coil shall be removable for service without disassembling the unit.

C. At least four condenser fans shall be provided for backup protection. Condenser fans shall be direct drive, propeller type designed for low tip speed, vertical air discharge, and include service guards. Fan blades shall be constructed of corrosion resistant, reinforced polypropylene. Condenser fan motors shall be inherently protected, three-phase, non-reversing, totally enclosed type with permanent lubricated ball bearing. An internal electric heater shall be provided. The heater is energized when the motor is off such that moisture is kept out of the motor.

D. Condenser fan capacity shall be controlled to allow compressor operation down to 45 degrees F ambient.

E. All wetted surfaces of the spray compartment shall be constructed of corrosion-resistant stainless steel. The sump can be separated into three sections and each can be individually removed without disassembling the unit. The entire sump is two-dimensionally sloped to the drain and constructed of stainless steel. The sump includes a large face area strainer to keep debris out of the pump. A fully wired sump heater complete with thermostat control shall be provided.

F. Removable mist eliminators are provided between the condenser coil and fans. Air intake louvers separate the sump from sunlight to prevent microbial growth.

G. A walk-in service vestibule contains the main control panel and water spray pump for the condensing unit. It also includes hinged access doors on both sides of the unit, two fully wired marine lights, a ventilation fan, electrical outlet, and manual shutter such that conditioned air can be used to cool the vestibule. The marine lights, ventilation fan and electrical outlets are powered from a field-supplied 115 volt service. Space shall be allowed for a field-installed water treatment system including wall-mounted controller, control valves, and floor-mounted chemical tanks. The floor under the water pump, PVC tubing and water treatment system shall include a drain pan for protection against water leaks, and a walking grate that is raised above the pan. [A fully wired 1.5 kW unit heater shall be installed and wired complete with thermostat, on-off control. The service vestibule unit heater will be powered from a second field-supplied 115 volt service.]

H. [A factory-installed and wired sump heater shall be provided. Heat tape on all external water piping shall be included. Heat tape shall be provided for the pressurized factory supply line, plus eight feet of file connections.]

I. The spray system includes PVC tubing, 1.5 hp pump, single field water connection, hose bib to allow the sump to be washed out while the unit is shut down, single field drain/bleed connection and water treatment connections. The spar nozzles shall be removable, clog resistant and spray water across an angle of 150 degrees. The spray system shall include a manual and solenoid-operated drain valve.

J. Compressors shall be heavy-duty Copeland Discus® valve semi-hermetic, reciprocating type with reversible, positive displacement oil pump, suction and discharge line service valves, crankcase heater, high efficiency blocked suction unloading, and three leg inherent motor overload protection. Compressors shall be isolated with [resilient rubber isolators] [spring isolators with vibration eliminators in the suction and discharge lines] to decrease noise transmission.

K. The unit shall have two independent refrigeration circuits. Each circuit shall be complete with a liquid line solenoid valve, low pressure control, [filter-drier] [replaceable core filter drier], liquid moisture indicator/sight-glass, thermal expansion valve, liquid line shutoff valve with charging port, a manual reset high pressure safety switch, high pressure relief device and pump down switch. The thermal expansion valve shall be capable of modulation from 100% to 25% of its rated capacity. Sight-glasses shall be accessible for viewing without disrupting unit operation. Each refrigerant circuit shall include a subcooling circuit to provide 15 degrees of liquid subcooling. Each circuit shall be dehydrated and factory charged with Refrigerant 22 and oil.

L. Refrigeration capacity control shall be accomplished with a combination of compressor cycling and high efficiency blocked suction unloading.



M. [Constant air volume, zone temperature control-To maintain desired temperature control, the unit shall have a minimum of [4] [6] steps of capacity control.]

N. [Variable air volume, discharge temperature control-To maintain desired temperature control, the unit shall have a minimum [six (076C-100C)] [eight (110C-135C)] steps of capacity control.]

O. All compressor capacity control staging shall be controlled by the factory installed main unit control system.

Hot Gas BypassP. Hot gas bypass control shall be factory installed

on one [both] refrigerant circuits. Hot gas bypass control shall include a modulating hot gas bypass control valve, solenoid valve, all associated piping and be automatically operated by the units microprocessor control.

Roof CurbA. A prefabricated 12-gauge galvanized steel, mounting

curb, designed and manufactured by the unit manufacturer, shall be provided for field assembly on the roof decking prior to unit shipment. The roof curb shall be a full perimeter type with complete perimeter support of the air handling section and rail support of the condensing section. Supply and return opening duct frames shall be provided as part of the curb structure allowing duct connections to be made directly to the curb prior to unit arrival. The curb shall be a minimum of 16" high and include a nominal 2" × 4" wood nailing strip. Gasket shall be provided for field mounting between the unit base and roof curb.

ControlsA. Each unit shall be equipped with a complete

MicroTech® III microprocessor based control system. The unit control system shall include all required temperature and pressure sensors, input/output boards, main microprocessor and operator interface. The unit control system shall perform all unit control functions including scheduling,], unit diagnostics and safeties. Control sequences shall include [constant air volume, zone temperature control (CAV- ZTC)] [constant air volume, discharge temperature control (CAV-DTC)] [variable air volume, cooling only discharge temperature control (VAV-DTC)] [variable air volume, cooling/modulating heating discharge temperature control (VAV-DTC)] [duct static pressure control], [supply/return air fan tracking control] and [building static pressure control. All boards shall be individually replaceable for ease of service. All microprocessors, boards, and sensors shall be factory mounted, wired and tested.

B. The microprocessor shall be a stand-alone DDC controller not dependent on communications with any on-site or remote PC or master control panel. The microprocessor shall maintain existing set points and operate stand alone if the unit loses either direct connect or network communications. The microprocessor memory shall be protected from voltage fluctuations as well as any extended power failures. All factory and user set schedules and control points shall be maintained in nonvolatile memory. No settings shall be lost, even during extended power shutdowns.

C. The main microprocessor shall support an RS-232 direct connection to a product service tool or a modem. A [BACnet ethernet] [BACnet MSTP] [LonTalk] communications port shall be provided for direct communication into the BAS network.

D. All digital inputs and outputs shall be protected against damage from transients or wrong voltages. Each digital input and digital output shall be equipped with an LED for ease of service. All field wiring shall be terminated at a separate, clearly marked terminal strip.

E. The microprocessor memory shall be protected from all voltage fluctuations as well as any extended power failures. The microprocessor shall support an RS-232 direct connect from an IBM PC or 100% true compatible using MicroTech software. The microprocessor shall maintain existing set points and operate stand alone if the rooftop loses either direct connect or network communications.

F. The microprocessor shall have a built-in time schedule. The schedule shall be programmable from the unit keypad interface. The schedule shall be maintained in nonvolatile memory to insure that it is not lost during a power failure. There shall be one start/stop per day and a separate holiday schedule. The controller shall accept up to sixteen holidays each with up to a 5-day duration. Each unit shall also have the ability to accept a time schedule via BAS network communications.

G. If the unit is to be programmed with a night setback or setup function, an optional space sensor shall be provided. Space sensors shall be available to support field selectable features. Sensor options shall include:1. Zone sensor with tenant override switch.2. #1 above plus a heating and cooling set point

adjustment. (CAV-ZTC only)H. The keypad/display character format shall be 20

characters × 4 lines. The character font shall be a 5 × 8 dot matrix. The display shall be a supertwist liquid crystal display (LCD) with black characters on yellow background providing high visibility. The display form shall be in plain English coded formats. Lookup tables are not acceptable

I. The keypad shall be equipped with 8 individual touch- sensitive membrane key switches. All control settings shall be password protected from changes by unauthorized personnel.



J. [Both a unit-mounted and remote-mounted UI shall be provided. A unit-mounted switch brings either the unit- mounted or remote-mounted UI into control. The control contractor is responsible for wiring between the unit and the remote UI. The maximum wiring distance to the remote UI is 1200 feet. Optical isolation shall protect the main unit controller from remote UI wiring problems. The remote UI shall be provided with the same keypad/display and have identical functionality to the unit-mounted UI.]

K. The display shall provide the following information as required by selected unit options:1. Supply, outdoor and space air temperature2. Supply, return, outdoor, and space air

temperature3. Duct and building static pressure; the control

contractor is responsible for providing and installing sensing tubes

4. Supply fan and return fan status and airflow verification

5. Supply and return VFD speed6. Outside air damper position and economizer mode7. Cooling and heating changeover status8. Occupied, unoccupied, and dirty filter status9. Date and time schedules

10. Up to four current alarms and eight previous alarms with time and date

L. The keypad shall provide the following set points as a minimum as required by selected unit options:1. Supply, outdoor and space air temperature2. Six control modes including off manual, auto,

heat/ cool, cool only, heat only, and fan only3. Four occupancy modes including auto, occupied,

unoccupied and bypass (tenant override with adjustable duration)

4. Control changeover based on return air temperature, outdoor air temperature, or space temperature

5. Primary cooling and heating set point temperature based on supply or space temperature

6. Night setback and setup space temperature7. Cooling and heating control differential (or dead

band)8. Cooling and heating supply temperature reset

options based on one of the following: Return air temperature, outdoor air temperature, space temperature, airflow, or external (1-5 VDC) signal

9. Reset schedule temperature10. High supply, low supply, and high return air

temperature alarm limits

11. Ambient compressor and heat lockout temperatures

12. Auto or manual lead lag method on compressors 13. Compressor interstage timers duration14. Duct and building static pressure15. Return fan tracking (VaneTrol) settings that

include minimum/maximum VFD speed with and without remote exhaust operation

16. Minimum outdoor airflow reset based on external reset (1-5 VFD) percent of cfm capacity, and fixed outdoor damper position

17. Minimum outdoor airflow reset based on DesignFlow direct OA volume measurement, percent of cfm capacity, and fixed outdoor damper position

18. Economizer changeover based on enthalpy, dry bulb or network signal

19. Current time and date20. 2Occupied/unoccupied time schedules with

allowances for holiday/event dates and duration21. 2Three types of service modes including timers

normal (all time delays), timers fast (all time delays 20 seconds), and normal

M. Open Communications - The unit control system shall have the ability to communicate to an independent Building Management System (BMS) through a direct [BACnet ethernet] [BACnet MSTP] [LonTalk] communication connection. The independent BMS system shall have access to [quantity from specification] “read only’ variables and [quantity from specification] “read & and write” variables. Communications shall not require field mounting of any additional sensors or devices at the unit. [The communications protocol shall be LONMARK 3.3 certified under the [Discharge Air] [Space Comfort] functional profiles.]The BMS system shall be capable of interacting with the individual rooftop controllers in the following ways:1. Monitor controller inputs, outputs, set points,

parameters and alarms2. Set controller set points and parameters3. Clear alarms4. Reset the cooling and heating discharge air

temperature set point (VAV and CAV-DTC units)5. Reset the duct static pressure set point (VAV

units)6. Set the heat/cool changeover temperature (VAV

and CAV-DTC units)7. Set the representative zone temperature (CAV-

ZTC units)



N. It will be the responsibility of the Systems Integrating Contractor to integrate the rooftop data into the BMS control logic and interface stations.

InstallationA. Install in accordance with manufacturer’s

instructions.

Daikin Applied Training and DevelopmentNow that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.

Warranty

All Daikin equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty. Consult your local Daikin Applied representative for warranty details. To find your local Daikin Applied representative, go to www.DaikinApplied.com.

Aftermarket Services

To find your local parts office, visit www.DaikinApplied.com or call 800-37PARTS (800-377-2787). To find your local service office, visit www.DaikinApplied.com or call 800-432-1342.

This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.DaikinApplied.com.

Products manufactured in an ISO Certified Facility.

CAT 219-2 (03/16) ©2016Daikin Applied | (800) 432–1342 | www.DaikinApplied.com

Date post:	06-Mar-2018
Category:	Documents
Upload:	dinhkiet
View:	236 times
Download:	3 times

RoofPak with Evaporative Condenser - Daikin...

Documents