Commercial 10 to 15 Ton - WaterFurnace · 2018-12-21 · capacity but decreases heating capacity....

Commercial 10 to 15 TonWater Source/Geothermal Heat Pump

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VERSATEC VARIABLE SPEED SERIES SPECIFICATION CATALOG

Table of Contents

Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Electrical Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

AHRI Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

The Versatec Variable Speed Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

Inside the Versatec Variable Speed Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-16

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-34

Application Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-37

Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38-39

Installation Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-42

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-49

Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-52

Selection Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53-54

Reference Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Legend and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56-57

Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Performance Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58-63

Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64-68

Engineering Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-71

Revision Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

4


Model Nomenclature

Electrical AvailabilityVS ECM

VoltageModel

120 180

208-230/60/3 • •

460/60/3 • •

575/60/3 N/A N/A

10/29/2017Legend:NA = Not Available• = Voltage available in this size

Vintage * – Factory Use

Non-Standard Options SS – Standard

Drain Pan Option 2 – Stainless Steel

Air Coil Option 3 – All-Aluminum, Uncoated 4 – All-Aluminum, AlumiSealTM

Filter Option A – 2" MERV 4 B – 2" MERV 13

Cabinet Option 2 – Unpainted Cabinet, 4-Sided Filter Rack 3 – Painted Cabinet, 4-Sided Filter Rack

Electrical Option N – None B – Breaker

Aurora Advanced Control Option A – Standard E – AuroraTM DDC F – AuroraTM DDC w/Lon

Water Control Option N – None V – Modulating Valve F – Flow Meter

Rev.: 26 September 2017

Vintage * – Factory Use

Non-Standard Options SS – Standard

Drain Pan Option 2 – Stainless Steel

Air Coil Option 3 – All-Aluminum, Uncoated 4 – All-Aluminum, AlumiSealTM

Filter OptionA – 2" MERV 4

B – 2" MERV 13

Cabinet Option 2 – Unpainted Cabinet, 4-Sided Filter Rack 3 – Painted Cabinet, 4-Sided Filter Rack

Electrical Option N – None B – Breaker

Aurora Advanced Control Option A – Standard E – AuroraTM DDC F – AuroraTM DDC w/ww Lon

Water Control Option N – None V – Modulating Valve F – Flow Meter

Rev.: 26 September 2017

1-2 3 4-6 7 8 9

Model Type UV – Versatec Variable Speed

Cabinet Configuration V – Vertical H – Horizontal

Unit Capacity (MBTUH) 120, 180

Discharge Configuration T – Top/Side (Vertical) E – End/Side (Horizontal) B – Bottom (Vertical)

Return Air Configuration L – Left R – Right

Voltage 3 – 208-230/60/3 4 – 460/60/3

Refrigeration Option 0 – None 6 – Hot Gas Bypass

Blower Options 5 – Variable Speed ECM, Backward Inclined Water Coil Option P – Brazed Plate, Insulated

Sound Kit Option A – None B – Sound Kit

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AHRI Data

All UV Series product is safety listed under UL1995 thru UL and performance tested in accordance with AHRI/ISO standard 13256-1.

VS ECM MotorsAHRI/ASHRAE/ISO 13256-1English (IP) Units

Model Capacity Modu-lation

Flow Rate

Water Loop Heat Pump Ground Water Heat Pump Ground Loop Heat Pump

Cooling EWT 86°F

Heating EWT 68°F

Cooling EWT 59°F

Heating EWT 50°F

Cooling Brine Full Load 77°F Part Load 68°F

Heating Brine Full Load 32°F Part Load 41°F

gpm cfm Capacity Btuh

EER Btuh/W

Capacity Btuh COP Capacity

Btuh EER

Btuh/W Capacity

Btuh COP Capacity Btuh

EER Btuh/W

Capacity Btuh COP

120Full 30 4000 125,000 14.5 140,000 4.6 145,000 22.0 115,000 4.0 132,000 16.5 96,000 3.5Part 20 1500 40,000 22.0 40,000 6.0 50,000 50.0 25,000 5.0 45,000 40.0 24,000 4.5

180Full 45 5600 175,000 13.2 200,000 4.3 200,000 18.0 185,000 4.0 180,000 14.2 145,000 3.4Part 20 2400 50,000 22.0 50,000 6.8 60,000 45.0 40,000 5.0 60,000 33.0 34,000 4.3

Cooling capacities based upon 80.6°F DB, 66.2°F WB entering air temperatureHeating capacities based upon 68°F DB, 59°F WB entering air temperatureAll ratings based upon 208V operation

10/29/17

6


The performance standard AHRI/ASHRAE/ISO 13256-1 became effective January 1, 2000 and replaces AHRI Standards

320, 325, and 330. This new standard has three major categories: Water Loop (comparable to ARI 320), Ground Water (ARI

325), and Ground Loop (ARI 330). Although these standards are similar there are some differences:

Unit of Measure: The Cooling COPThe cooling efficiency is measured in EER (US version measured in Btu/h per Watt. The Metric version is measured in a

cooling COP (Watt per Watt) similar to the traditional COP measurement.

Water Conditions DifferencesEntering water temperatures have changed to reflect the centigrade temperature scale. For instance the water loop

heating test is performed with 68°F (20°C) water rounded down from the old 70°F (21.1°C).

Air Conditions DifferencesEntering air temperatures have also changed (rounded down) to reflect the centigrade temperature scale. For instance

the cooling tests are performed with 80.6°F (27°C) dry bulb and 66.2°F (19°C) wet bulb entering air instead of the

traditional 80°F (26.7°C) DB and 67°F (19.4°C) WB entering air temperatures. 80.6/66.2 data may be converted to

80/67 using the entering air correction table. This represents a significantly lower relative humidity than the old 80/67

of 50% and will result in lower latent capacities.

Pump Power Correction CalculationWithin each model, only one water flow rate is specified for all three groups and pumping Watts are calculated using

the following formula. This additional power is added onto the existing power consumption.

• Pump power correction = (gpm x 0.0631) x (Press Drop x 2990) / 300

Where ‘gpm’ is waterflow in gpm and ‘Press Drop’ is the pressure drop through the unit heat exchanger at rated water

flow in feet of head.

Blower Power Correction CalculationBlower power is corrected to zero external static pressure using the following equation. The nominal airflow is rated

at a specific external static pressure. This effectively reduces the power consumption of the unit and increases cooling

capacity but decreases heating capacity. These Watts are significant enough in most cases to increase EER and COPs

fairly dramatically over ARI 320, 325, and 330 ratings.

• Blower Power Correction = (cfm x 0.472) x (esp x 249) / 300

Where ‘cfm’ is airflow in cfm and ‘esp’ is the external static pressure at rated airflow in inches of water gauge.

ISO Capacity and Efficiency CalculationsThe following equations illustrate cooling calculations:

• ISO Cooling Capacity = Cooling Capacity (Btu/h) + (Blower Power Correction (Watts) x 3.412)

• ISO EER Efficiency (W/W) = ISO Cooling Capacity (Btu/h) x 3.412 / [Power Input (Watts) - Blower Power Correction

(Watts) + Pump Power Correction (Watt)]

The following equations illustrate heating calculations:

• ISO Heating Capacity = Heating Capacity (Btu/h) - (Blower Power Correction (Watts) x 3.412)

• ISO COP Efficiency (W/W) = ISO Heating Capacity (Btu/h) x 3.412 / [Power Input (Watts) - Blower Power Correction

(Watts) + Pump Power Correction (Watt)]

Comparison of Test Conditions

Conversions: Airflow (lps) = cfm x 0.472; Water Flow (lps) = gpm x 0.0631; esp (Pascals) = esp (in wg) x 249; Press Drop (Pascals) = Press Drop (ft hd) x 2990

AHRI Data cont.

ARI 320ISO/AHRI 13256-1 WLHP

ARI 325ISO/AHRI 13256-1 GWHP

ARI 330 ISO/AHRI 13256-1 GLHP

CoolingEntering Air - DB/WB °F 80/67 80.6/66.2 80/67 80.6/66.2 80/67 80.6/66.2Entering Water - °F 85 86 50/70 59 77 77Fluid Flow Rate * ** ** ** ** **

HeatingEntering Air - DB/WB °F 70 68 70 68 70 68Entering Water - °F 70 68 50/70 50 32 32Fluid Flow Rate * ** ** ** ** **

Note *: Flow rate is set by 10°F rise in standard cooling test Note **: Flow rate is specified by the manufacturerPart load entering water conditions not shown.WLHP = Water Loop Heat Pump; GWHP = Ground Water Heat Pump; GLHP = Ground Loop Heat Pump

7


The Versatec Variable Speed SeriesThe Versatec Variable Speed represents a significant improvement in the commercial

water source heat pump (wshp). The R-410A product features high efficiency variable

capacity compressors with industry leading standard options in a compact cabinet

suitable for both retrofit and new construction applications. The product is also targeted

to provide optimum performance and flexibility in both water loop and geothermal

applications.

The Versatec Variable Speed is a new level of innovation and performance with all new

advanced controls mated with variable speed compressor technology. Featuring the

highest commercial efficiencies. (Over 22 EER and 6.8 COP ISO/AHRI 13256-1 WLHP)

available, the Versatec Variable Speed is available in 2 variable speed capacity sizes (10

and 15 ton) with Copeland Variable Speed Compressors and drives. These units feature

high efficiency permanent magnet compressors coupled with high efficiency electronic

drives to allow smooth capacity between 25 and 100%. These Versatec Variable Speed

units utilize ozone-safe R-410A refrigerant to meet the most stringent EPA requirements.

Exclusive all aluminum air coils add durability and longer life. Variable Speed ECM blower

motors bridge the gap of high efficiency ECM capability with great value. ECM blowers are

used to increase comfort, efficiency, and airflow flexibility.

The Versatec Variable Speed is managed by a sophisticated Aurora Control system that

is modular and designed for the most demanding applications. The Aurora Control features a microprocessor control to

sequence all components during operation for optimum performance. Plus, it provides easy-to-use troubleshooting features

with fault lights, on-board diagnostics, and a hand held Aurora Interface Diagnostic (AID) Tool. The Aurora system includes

advanced loop and hot water generator pump control, as well as service, performance, and energy monitoring sensor kit

capability.

Vertical Versatec Variable Speed Series

Models UVV 120-180 (10-15 tons) Variable Speed

Horizontal Versatec Variable Speed Series

Models UVH 120-180 (10-15 tons) Variable Speed

Vertical Versatec Variable Speed Series

Models UVV 120-180 (10-15 tons) Variable Speed

Horizontal Versatec Variable Speed Seri

Models UVH 120-180 (10-15 tons) Variable Speed

8


The Versatec Variable Speed Series cont.Versatec Variable Speed Product HighlightsThe new product also features the following options (see nomenclature for more details)

• With variable capacity compressors, each model can have a 25%-100% capacity range (4:1 turn down).

• Complete commercial voltage selection of 208-230 V/60 Hz/3ph, and 460/60/3

• All-Aluminum rifled tube-and-fin air coils are not susceptible to formicary corrosion

• Balanced port bidirectional electronic expansion valve (EEV).

• Industry leading quality through engineering and manufacturing using quality components

— High Efficiency and reliable permanent magnet variable capacity scroll compressors

— High Efficiency variable speed, backward inclined plenum fan with EC motor

• High efficiency performance for maximizing LEED points

— Up to 22.0 EER and 6.8 COP (ISO/AHRI 13256-1-WLHP part load)

• Split access panel design for ease of service.

• Variable Speed integrated ECM plenum fan with 2" w.g. ESP capability - no belts or sheaves.

Flexible Product with Several Standard Options

• Extended range insulation

• Super Quiet Sound Package, including multi-density

compressor blanket

• Quiet softstart variable speed scroll compressors in

all models

• 2-dimension refrigerant piping vibration loops to

isolate the compressor

• Double isolated compressor mounting utilizing eight

durometer selected rubber grommets

• Configurations – horizontal left and right return, end

or side discharge (field switchable); vertical left and

right return, vertical bottom discharge

• Heavy gauge cabinet

• Hot Gas Bypass

• Internally mounted water flow regulator and/or water

solenoid valve for variable speed pumping systems

• Standard Aurora Base Control or UPC DCC Control

with standard N2, ModBus, BACnet, or optional

LonWorks card

• Optional ‘dial’ disconnect

• Optional painted cabinet

• Stainless steel drain pan

• Filter options: standard 1 in. MERV 4 or optional 2

in. MERV 13 factory installed with either filter rails

or optional deluxe filter rack both field switchable

between 1 in. and 2 in.

• Energy monitoring allows the complete power usage

of the entire unite to be measured and displayed.

• Refrigerant monitoring allows the measurement of

discharge and suction pressures, suction and liquid

line temperatures, superheat and subcooling.

Other options are available by special request through

factory authorized representative.

9


The Versatec Variable Speed Series cont.

Standard

filter rail, field

switchable for 1

in. or 2 in. filters

Optional powder

coated, heavy-gauge

G60 galvanized steel

cabinet

Insulated divider panel

Product Features: Vertical Cabinet Versatec Variable Speed vertical units are designed for high efficiency, maximum flexibility, and primary servicing from the

front. Available in 4 cabinets for bottom flow and top/side discharge configurations.

A true left and right return option is available.

Flush mounted water

connections (no backup

wrenches needed)

High Efficiency Compressor Drive

is designed to limit drive losses

and provide a soft start for the

compressor.

Aurora Controls provides

total management of all

internal systems using the

ModBus protocol.

UPC (Optional) can be added

to provide BACnet, N2 or LON

for connection to building

automation systems (BAS). The

Aurora/UPC system exposes

many internal parameters

such as airflow settings,

configurations, temperatures

and pressures as BAS registers

for use system wide.

Insulated, high efficency

brazed plate heat

exchanger

Stainless steel drain pan

with overflow protection,

optional secondary drain

connection

VS ECM Fan Motor provides

fully variable speed airflow

Can be set to variable with

compressor or remain

constant.

Electronic Expansion

Valve (EEV) provides

efficient refrigerant flow no

matter what conditions or

compressor capacity is active.

High Efficiency Variable

Capacity Scroll Compressor

is a high efficiency permanent

magnet motor driving a high

reliability scroll set.

Oversized rifled tube/

lanced fin all-aluminum air

coil (optional AlumiSealTM

coil coating).

Optional factory

mounted deluxe filter

rack (shown), field

switchable for 1 in. or

2 in. filters

, y g g

G60 galvanized stee

cabinet

High

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ModBus protocol.

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VS ECM Fan Mot

fully variable spe

Can be set to var

compressor or re

constant.

rifled tube/

luminum air

AlumiSealTM

oil coating).

intern

10



Standard

filter rail, field

switchable for 1

in. or 2 in. filters

Optional powder coated,

heavy-gauge G60 galvanized

steel cabinet

Insulated divider panel

Product Features: Vertical Cabinet Versatec Variable Speed vertical units are designed for high efficiency, maximum flexibility, and primary servicing from the

front. Available in 4 cabinets for bottom flow and top/side discharge configurations.

Flush mounted water

connections (no backup

wrenches needed)

Aurora Controls provides

total management of all


ModBus protocol.

UPC (Optional) can be added to

provide BACnet, N2 or LON for

connection to building automation

systems (BAS). The Aurora/UPC system

exposes many internal parameters

such as airflow settings, configurations,

temperatures and pressures as BAS

registers for use system wide.




connection

VS ECM Fan Motor provides

fully variable speed airflow

Can be set to variable with


constant.

Electronic Expansion

Valve (EEV) provides

efficient refrigerant flow no

matter what conditions or


High Efficiency Variable

Capacity Scroll Compressor

is a high efficiency permanent

magnet motor driving a high

reliability scroll set.

Oversized rifled tube/

lanced fin all-aluminum air

coil (optional AlumiSealTM

coil coating).

Optional factory

mounted deluxe filter

rack (shown), field

switchable for 1 in. or

2 in. filters

steel cabinet

Insu

es

ll

e

l.

UPC (Optional) can be added to

provide BACnet, N2 or LON for

connection to building automation

tems (BAS). The Aurora/UPC system

an

n,

in

on

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com

con

Ele

Val

eff

ma

com

High

Cap

is a

mag

relia

alTM

ng).

y

r

d

r

s

ized

Oversized rifled

tube/lanced fin

all-aluminum air coil

(optional AlumiSeal

coil coating).

11


Optional factory mounted filter rail accepts 1 in. and 2 in.

filters (field switchable)

Easily removablecontrol box

High Efficiency

Variable Capacity Scroll

Compressor is a high

efficiency permanent

magnet motor driving a

high reliability scroll set.

Fault and diagnostic LEDs

Product Features: Horizontal CabinetVersatec Variable Speed horizontal units are available in two cabinet sizes. The cabinets are designed for high efficiency,

maximum flexibility, and primary servicing from the front.

Four blower discharge options are available. Factory or field conversion option of end or side discharge using switchable access panels and a factory only option of true left or right return air coil.


Flush mounted water connections

Compressor vibration isolation plate

ECM VS Fan Motor

provides fully variable

speed airflow. Can be

set to variable with


constant.

High Efficiency Compressor Drive

is designed to limit drive losses and

provide a soft start for the compressor.

Electronic Expansion Valve (EEV) provides efficient

refrigerant flow no matter what conditions or


Aurora Controls

provides total

management of all

internal systems using

the ModBus protocol.

UPC (Optional) can be added to provide BACnet, N2 or

LON for connection to building automation systems (BAS).

The Aurora/UPC system exposes many internal parameters

such as airflow settings, configurations, temperatures and

pressures as BAS registers for use system wide.

High

Varia

Com

effici

magn

high

LEDss

Compressor vibration isolation plate

ECM

prov

spee

set to

comp

cons

pressor Drive

rive losses and

or the compressor.

.

ional) can be added to provide BACnet, N2 or

l

sing

col

g

12


Aurora Controls

The Aurora Control System is a complete commercial

comfort system that can bring all aspects of the HVAC

system into one cohesive module network. The Aurora

System is available with Aurora Advanced Control with

optional Aurora UPC for DDC applications.

The Aurora Advanced Control provides all of the

Aurora Base Control

features plus it adds

the extended I/O of the

Aurora Expansion Board

(AXB) to the mix. This

extended I/O includes

the energy monitoring as

a standard feature where

current transducers

measure current and

power of fan and compressor. An optional refrigeration

monitoring kit is available to report refrigerant temperatures

and pressures and will calculate superheat and subcooling.

The optional performance kit includes entering and leaving

water temperatures along with source water flow rate via a

vortex shedding flow meter.

An optional Aurora UPC

communicates directly

with either Aurora

system and provides

DDC protocols of BACnet

MS/TP, N2 and Lon for

connection to the BAS

providing a wide variety

of points covering

configurations, sensors,

airflow, freeze protection

and even economizer

enthalpy controls.

The Versatec Variable Speed Series cont.Quiet Operation

All models incorporates several noise reduction

technologies and is ARI 260 sound rated using third party

sound testing. Room Noise Criteria Curves (NC Curve)

may be calculated using data from the ARI 260 ratings

giving the engineer total flexibility in assuring a quiet

environment. Please refer to the separate Sound Ratings

and Performance Catalog concerning this standard and

variable speed sound performance data.

Super Quiet Option

An optional Super Quiet Sound Package is also available

for a modest cost and features multi-density laminate lined

compressor blanket designed to completely surround the

compressor and suppress low frequency noise.

Indoor Air Quality (IAQ)

All Versatec Variable Speed Series features several IAQ

benefits:

• Corrosion-free stainless steel drain pan to

eliminate standing water and prevent bacterial growth

• A washable surface on insulation in all air handler

compartments to allow cleanability and inhibit bacteria

growth. Optional non-fibrous closed cell insulation is also

available for more sensitive applications.

• Factory mounted, four sided, deluxe filter rack that

is field switchable from 1 in. to 2 in. [2.54 to 5.1 cm] is

available for ducted return applications.

• Standard supplied filter is a pleated MERV 4, 2 in. [5.1

cm]. An optional low static high efficiency 2 in. [5.1 cm]

MERV 13, for LEED certification points, is also available.

13


Factory Quality

• All refrigerant brazing is performed in a

nitrogen environment.

• Computer controlled deep vacuum and refrigerant

charging system.

• All joints are leak detected for maximum leak rate of

less than 1/4 oz. per year.

• Computer bar code equipped assembly line ensures all

components are correct.

• All units are computer run-tested with water to verify

both function and performance.

Internally Mounted Solenoid Valve OptionWhen variable speed circulating pump systems are

designed, low pressure drop (high Cv) solenoid valves are

specified at each unit to vary the pump according to flow

required. It is important that these valves be low pressure

drop to avoid unwanted pump watts. This option factory

installs this valve inside the unit.

Secondary Drain Connection Option (Special Request)

Some local building authority’s interpretation of codes

require more condensate overflow protection than standard

microprocessor based condensate sensors offer. In these

areas a full secondary drain pan might be required causing

both increased cost and unit service access issues. In many

of these cases a secondary drain connection option can

be added to the unit to pass this local interpretation of

condensate drain redundancy. This option adds a second

drain connection to the drain pan at a higher level.

Hot Gas BypassThe hot gas bypass option is designed to limit the

minimum evaporating pressure in the cooling mode to

prevent the air coil from icing.

Electrical BreakerAn optional factory mounted,

internally wired breaker is

available to avoid scheduling

problems with the electrical

contractor.


14


Electrical Box

Unit controls feature quick

connect wiring harnesses

for easy servicing. Separate

knockouts for low voltage

and two sides of the

electrical corner post for

easy access to the control

box. Large transformer 75VA

assures adequate controls

power for accessories.

Water ConnectionsFlush mount FPT water

connection fittings allow

one wrench leak-free

connections and do not

require a backup wrench.

Drain Pan

All condensate connections are stainless steel corrosion free

connections. Complete drainage helps to inhibit bacterial or

microbial growth. Vertical (top discharge) units feature an

internally trapped condensate line using clear PVC hose for

easy inspection and reduced installation cost.

Inside the Versatec Variable Speed SeriesCabinet

All units are constructed of corrosion resistant galvanized

sheet metal with optional white polyester powder coat paint

rated for more than 1,000 hours of salt spray. Multiple lift-

out access panel provides access to the compressor and air

handler section to allow servicing of blower motor, blower,

and drain pan. Refrigerant circuit is designed to allow

primary serviceability from the front. Two (2) horizontal

and four (4) vertical cabinets are provided for application

flexibility. The blower motor and blower can be completely

serviced or replaced without removal of the unit.

Flexible configurations include two (2) blower discharge

options for horizontals and a true left and right return on

both horizontal and vertical.

Filter Rack

All units come standard with a deluxe filter rack/duct collar

for use with ducted returns. Filter racks are field switchable

between 1 in. [2.54 cm] and 2 in. [5.1 cm] thick filters for

filter flexibility. A MERV 4, 2 in. [5.1 cm] is standard with an

optional 2 in. [5.1 cm] MERV 13 for LEED certification points

and high efficiency filtration.

15


Service Connectionsand Serviceability

Two Schrader service ports are

provided in every unit. The suction

side and discharge side ports are for

field charging and servicing access. All

valves are 7/16 in. SAE connections. All

water and electrical connections are

made from the front of the unit. Unit is

designed for front access serviceability.

4-Way Reversing Valve

All units feature a reliable all-brass pilot

operated refrigerant reversing valve.

The reversing valve operation is

limited to change of mode by the

control to enhance reliability.

All-Aluminum Air CoilAll units offers an all-aluminum round-

tube-and-fin air coil. These air coils are

constructed of lanced fin and rifled

tube aluminum that is not susceptible

to formicary corrosion. For additional

condensate runoff and meeting project

specifications, an optional AlumiSeal

e-coating is available.

Plenum Fan Motor and BlowerAn integrated communicating variable speed EC fan motor with backward curve impeller (EC plenum fan) provides efficient airflow through 2” of external static and reduced cabinet footprint. The variable speed EC plenum fan provides softstart and high efficiency capability and utilizes easy airflow setup in the Aurora AID or Aurora

Touch service tool.

Variable Capacity Compressor and Drive

The Versatec Variable Speed features

Copeland variable speed compressors

and drives. These units feature

high efficiency permanent magnet

compressors coupled with high

efficiency electronic drives to allow

capacity modulation between 25 and

100%.

Air Handler InsulationWashable air handler

insulation surface provides

cleanability to further

enhance IAQ.

Electronic Expansion ValveAll models utilize a balanced port

bidirectional electronic expansion valve

(EEV) for refrigerant metering. This allows

precise refrigerant flow in a wide range of

entering water variation and compressor

capacities (20 to 120°F [-7 to 49°C]).

The EEV is located in the compressor

compartment for easy access.

Water-to-Refrigerant Brazed Plate Heat Exchanger (BPHE)

Compact BPHE refrigerant-to-water heat exchangers

provide unparalleled efficiency. The BPHE's by their very

nature operate at lower approach temperatures when

compared with other heat exchange technologies. This

results in minimizing the compression ratio and hence

maximizing compressor energy efficiency.

All BPHEs are pressure rated

(design maximum) to 361 psig

water side, and 650 psig on the

refrigerant side. All water-to-

refrigerant heat exchangers are

insulated in a closed cell foam

jacket to prevent the formation of

condensate at low temperature

loop operation.

Inside the Versatec Variable Speed Series cont.

t

16


Advanced Service Features • Aurora Controls with the AID Tool provide advanced

service diagnostics. With this device setup and

configurations as well as real-time sensors, fault and

lockout history can be monitored and much more. This

device is required for setup and troubleshooting of the

unit.

• Features refrigeration service sensors as a standard

feature. Now superheat, subcooling, refrigerant pressures

and various temperatures needed to diagnose unit

problems are readily available at your finger tips in the

AID Tool right out of the box.

• Energy Monitoring - With this standard sensor kit

installation, the Aurora Control will feature power

monitoring of the compressor, blower, and electric heat.

The information can be displayed on AID Tool, selected

thermostats

• Advanced communication to the VS drive with faults,

electrical, and operational information for quick

diagnosis.

Communicating Digital Thermostats• Monochromatic Graphic Display Thermostats: For user

interface with the Aurora system; these displays not only

feature easy to use graphical interface but display alerts

and faults in plain English. When Energy Monitoring

is added, instantaneous usage is displayed on the

thermostat itself.

• Color Touch Screen Graphic Display Thermostats: For

user interface with the Aurora system; these displays

not only feature easy to use graphical interface but

display alerts and faults in plain English. When Energy

Monitoring is added not only instantaneous usage is

displayed but also weekly and annual consumptions are

stored and graphed. Other features include full color

implementation, user loaded background photos, and

USB port for easy configuration and software updates.

Inside the Versatec Variable Speed Series cont.Performance Monitoring Kit (Flow meter required)• With this optional sensor kit installation, the Aurora

controls can measure actual capacity and efficiency

performance of the heat pump; the information can be

displayed on the AID Tool.

IntelliZone2 Zone System (Standalone only)• The IntelliZone2 zoning system provides up to 6

zones (Variable Speed), 4 zones (Dual Capacity), or

2 zones (Single Speed) of individualized comfort via

communication to the Aurora Control System.

AID Tool• The Aurora Interface and Diagnostics (AID) Tool is a plug-

in configuration and troubleshooting tool for the Aurora

Control System.

Aurora Touch Interface• Utilizing a touch-screen interface, the UPC provides

a technician the ability to configure and diagnose

equipment at the unit or from any room sensor for

added accessibility and simpler troubleshooting. The

technician will have full access to equipment status,

parameter values, temperature, and humidity sensing as

well as access to alarm and trend history. With website-

like navigation, the Aurora Touch Interface is easy to use

and provides important insight into the system so your

building can operate as efficiently as possible.

17


Controls - Aurora Advanced Variable Speed Control

Control General Description Application Display/Interface Protocol

Aurora Base Control

The ABC microprocessor provides all the features necessary to operate today’s standard WSHPs that utilize dual capacity compressors and variable speed ECM/5 speed ECM blower motors with hot gas reheat. This control can communicate to a handheld diagnostic tool to help the installing contractor or service technician with equipment setup and service. By utilizing Modbus RTU communication protocol, the ABC board can communicate with additional devices on the Aurora network

Used for residential and commercial applications that use single or dual capacity compressors with PSC, 5-speed ECM, or variable speed ECM blower motors. This base control can also communicate to the AID Tool to display faults, inputs/outputs, and software revision. Commercial features such as hot gas reheat, slow opening water valve, and random start are also capable with the ABC board.

Optional AID toll can be used for field service.

Standalone

Aurora Advanced Control (ABC/AXB)

Aurora Advanced Control adds the AuroraAXB expansion board and provides added I/O and standard features such as refrigerant, performance or energy monitoring.

• Refrigeration Monitoring – provides Suction and discharge pressure,Suction, liquid line temps and superheat and subcooling.

• Performance Monitoring – provides entering and leaving loop water temperatures, loop flow rate as well as heat of extraction or rejection rate into the loop.

• Energy Monitoring – provides real-time power measurement (Watt) of compressor, fan, auxiliary heat andzone pump.

• Plus many more I/O options

Optional AID tool can be used for field service.

Standalone

Aurora Base/Aurora Advanced

Control w/UPC BACnet or N2

The Aurora Unitary Protocol Converter (UPC) is an integrated solution and communicates directly with the Aurora Heat Pump Controls and allows access/control of a variety of internal Aurora heat pump operations such as sensors, relay operation, faults and other information. In turn, the UPC then converts internal Aurora Modbus protocol to BACnet MS/TP, or N2 protocols and communicates to the BAS system. This provides the great benefit of complete control integration and a myriad of information available to the BAS from the heat pump control. Plus it also allows individual unit configuration such as ECM fan speeds or freeze protection setting directly over the BAS without the need for access to the actual heat pump.

The Aurora UPC is implemented with the Aurora heat pump control into our latest water source heat pumps. All Internal Aurora points are accessible to the UPC via firmware providing an integrated solution. All zone temperatures and zone sensors are connected to the UPC on an RNet bus, simplifying hook up at the unit. RNet sensors can include a combination of zone temperature and humidity, CO2, and VOC sensors. The UPC includes built-in support for a custom configurable keypad/display unit.

Optional Aurora Touch Interface

BACnet MS/TP or N2 Open (DIP selectable)

Aurora Base/Aurora Advanced

Control w/UPC LonWorks

The Aurora Unitary Protocol Converter (UPC) is an integrated solution and communicates directly with the Aurora Heat Pump Controls and allows access/control of a variety of internal Aurora heat pump operations such as sensors, relay operation, faults and other information. In turn, the UPC then converts internal Aurora Modbus protocol to LONWorks protocol and communicates to the BAS system.

The Aurora UPC is implemented with the heat pump control into our latest water source heat pumps. All Internal Aurora points are accessible to the UPC via firmware providing an integrated solution. All zone temperatures and zone sensors are connected to the UPC on an RNet bus, simplifying hook up at the unit. RNet sensors can include a combination of zone temperature and humidity, CO2, and VOC sensors. The UPC includes built-in support for a custom configurable keypad/display unit.

Optional Aurora Touch Interface

LonWorks

Aurora ControlsThe Aurora Control System is a complete commercial comfort system that can bring all aspects of the HVAC system into

one cohesive module network. The Aurora System is available in two configurations: Aurora Base Control and Aurora Ad-

vanced Control both with optional Aurora UPC for DDC applications.

18


Controls - Aurora Advanced Variable Speed Control cont.

Aurora ‘Advanced Variable Speed’ Control

NOTE: Refer to the Aurora Base Control Application and

Troubleshooting Guide and the Instruction Guide: Aurora

Interface and Diagnostics (AID) Tool for additional information.

The Aurora Advanced VS Control provides all baseline

operation of 7 faults (HP, LP, and LOC, coax freeze

protection, air coil freeze protection, over/under voltage,

and condensate overflow), as well as compressor speed,

fan speed, and lockout management through a single

Aurora Base Control board (ABC). The control features all

heat pump operational timings, configurations, sensors, and

fault history that can be viewed using the AID tool.

In addition to the baseline operation, Aurora Advanced VS

Control adds the extended I/O of the Aurora Expansion

Board (AXB) to the mix. This extended I/O includes

energy monitoring as a standard feature where current

transducers measure current and power of the fan motor.

Compressor power is monitored by the compressor drive

and communicated to the Aurora Controls. Refrigerant

monitoring is standard on all variable speed models and

reports refrigerant temperatures and pressures in order

to calculate superheat and subcooling. The optional

performance monitoring kit includes entering and leaving

water temperatures along with source water flow rate via a

vortex shedding flow meter.

The Aurora Advanced VS Control uses an internal PID

control and communicates via Modbus to the variable

speed compressor drive and electronic expansion valve to

provide capacity and superheat control of the system. All

faults codes from the compressor drive are mapped to the

Aurora system which are then displayed through the AID

tool.

Optional Aurora UPC

When coupled with the optional Aurora UPC, the system

can communicate all of these same heat pump parameters

to the BAS as network points using either BACnet, N2 or

Lon protocols. This means that not only are heat pump

parameters visible by the BAS, many configuration settings,

such as airflow and freeze detection settings, can also

be changed from the BAS system saving commissioning

costs. This provides both cost advantages and features

not typically found on WSHP controls. All configuration,

sensor and servicing can be accessed thru the AuroraTouch

color service tool. This integration allows heat pump

monitoring sensors, status and service diagnosis faults

to be communicated thru the DDC direct to the building

automation system (BAS), giving building supervisors

detailed and accurate information on every piece of

equipment without removing an access panel!

Control FeaturesSoftware ABC Standard Version 3.0

Variable Speed CompressorsOnly Copeland EV2 Variable Speed compressors can be

operated.

Aurora Advanced VS Control FeaturesNOTE: Refer to the Aurora Advanced VS Control Application

and Troubleshooting Guide and the Instruction Guide: Aurora

Interface and Diagnostics (AID) Tool for additional information.

Control FeaturesSoftware ABC VS Version 3.0 Variable Capacity Compressors• Random start at power up • Anti-short cycle protection • High and low pressure cutouts • Loss of charge • Water coil freeze detection • Air coil freeze detection • Over/under voltage protection • Condensate overflow sensor • Load shed • Dehumidification (where applicable) • Emergency shutdown • Diagnostic LED • Test mode push button switch • Two auxiliary electric heat outputs • Alarm output • Accessory output with N.O. and N.C.

• Modbus communication

19


Variable Speed ECM Blower MotorA variable speed ECM blower motor is driven directly using the onboard PWM output. Multiple blower speeds are available based upon requirements of the compressor and electric heat. The blower speeds can be changed either by the variable speed ECM manual configurations mode method or by using

the Aurora AID Tool directly, or with the Auorra/UPC via BAS.

Advanced Hot Water Generator Control (Domestic Hot Water Option) An AID Tool selectable temperature limit and microprocessor control of the process is featured. This will maximize hot water generation and prevent undesirable energy use. An alert will occur when the hot water input temperature is at or above the set point (130°F default) for 30 continuous seconds. This alert will appear as an E15 on the AID Tool and the hot water pump de-energizes. Hot water pump operations resume on the next compressor cycle or after 15 minutes of continuous compressor operation during the current thermostat demand cycle. Since compressor hot gas temperature is dependent on loop temperature in cooling mode, loop temperatures may be too low to allow proper heating of water. The control will monitor water and refrigerant temperatures to determine if conditions are satisfactory for heating water.

VS Drive and Envelope ControlThe VS drive operates the compressor between 25 and 100% capacity. The VS drive communicates any out of refrigerant envelope conditions to the Aurora and will attempt to adjust the compressor speed to keep within the envelope. These conditions are measured using discharge temperature and current sensors of the drive.

Electronic Expansion Valve (EEV)The electronic expansion valve (EEV) is operated by the AXB board and is set to maintain optimal superheat setting for maximum efficiency. All operation parameters are communicated to the Aurora system.

Variable Speed PumpThis input and output are provided to drive and monitor a variable speed pump. The VS pump output is a PWM signal to drive the variable speed pump. The minimum and maximum level are set using the AID Tool. 50% and 100% are the default settings respectively. The VS data input allows a separate PWM signal to return from the pump giving fault and performance information. Fault received from the variable speed pump will be displayed as E16.

Modulating Water ValveThis output is provided to drive a modulating water valve. Through advanced design the 0-10VDC valve can be driven directly from the VS Pump output. The minimum and maximum level are set in the same way as the VS pump using the AID Tool. 50% and 100% are the default settings respectively.

Loop Pump LinkingThis input and output are provided so that two units can be linked together with a common flow center. When either unit has a call for loop outputs, both unit’s loop pump relays and variable speed pumps are energized. The flow center then can simply be wired to either unit. The output from one unit should be routed to the input of the other. If daisy chained, up to 16 heat pumps can be wired and linked together in this fashion.

Advanced Communication PortsAXB Communication ports P6 and P8 will provide future expansion via dedicated protocols. These are for future use.

Monitoring Sensors Energy MonitoringEnergy Monitoring is standard in all models and includes two current transducers (blower and electric heat) so that the complete power usage of the heat pump can be measured. Compressor power is measured by the variable speed drive. The AID Tool provides configuration detail for the type of blower motor and a line voltage calibration procedure to improve the accuracy. This information can be displayed on the AID Tool, selected communicating thermostats or communicated thru the optional Aurora UPC BAS communications board.

Refrigerant MonitoringRefrigerant Monitoring is standard in all models includes two pressure transducers, and three temperature sensors, heating liquid line, suction temperature and existing cooling liquid line (FP1). These sensors allow the measurement of discharge and suction pressures, suction and liquid line temperatures as well as superheat and subcooling. This information can be displayed on the AID Tool or communicated thru the optional Aurora UPC BAS communications board.

Performance Monitoring(Requires Flow Meter)

The optional Performance Monitoring includes three temperature sensors, entering and leaving water, leaving air temperature and a water flow rate sensor. Heat of extraction and rejection will be calculated. Thisrequires configuration using the AID Tool for selection of water or antifreeze and is displayed on the AID tool or communicated thru the optional Aurora UPC BAS communications board.


20


Special Modes and Applications Communicating Digital Thermostats The Aurora Advanced VS controls system also requires either the monochromatic or color touch screen graphic display thermostats for user interface. These displays not only feature easy to use graphical interface but display alerts and faults in plain English.

Dehumidification – Active Active dehumidification will only activate during cooling operation and is based upon the humidity setpoint of the thermostat being at least 5% below the actual relative humidity and being within the temperature parameters described here. The green status LED will flash code 2 when active. The unit can operate a maximum of 2°F below the cooling setpoint. The compressor will ramp up and airflow will begin at a low level. Airflow is then reduced periodically until air coil temperature setpoint is reached. If coil temperature continues to drop, the airflow is increased until air coil setpoint is maintained. After 20 minutes of operation in the Active Dehumidification mode, normal cooling operation will resume for 5 minutes. This cycle continues until the dehumidification setpoint is reached, room temperature is more than 2°F below cooling setpoint, or more than 1°F above cooling setpoint (normal cooling takes over). In IntelliZone2 systems, active dehumidification is only enabled when system is operating on compressor speeds 4 or lower. Once active dehumidification is activated the main zone and any other active cooling zone will remain open.

Field Hardware Selectable Options ABC Field Selectable Options via Button (SW1)Test/Configuration Button (See SW1 Operation Table)

Test ModeThe control is placed in the test mode by holding the push button switch on the ABC SW1 for 2 - 5 seconds. In test mode most of the control timings will be shortened by a factor of sixteen (16). LED3 (green) will flash at 1 second on and 1 second off. Additionally, when entering test mode LED1 (red) will flash the last lockout one time. Test mode will automatically time out after 30 minutes. Test mode can be exited by pressing and holding the SW1 button for 2 to 5 seconds or by cycling the power. NOTE: Test mode will automatically be exited after 30 minutes.

Variable Speed ECM Configuration Mode

The control is placed in the variable speed ECM

configuration mode by holding the push-button switch SW1

for 5 to 10 seconds, the high, low, and G variable speed ECM

speeds can be selected by following the LED display lights.

LED2 (yellow) will fast flash when entering the variable

speed ECM configuration. When setting G speed LED3

(green) will be continuously lit, for low speed LED1 (red) will

be continuously lit, and for high speed both LED3 (green)

and LED1 (red) will be continuously lit. During the variable

speed ECM configuration mode LED2 (yellow) will flash each

of the 12 possible blower speeds 3 times. When the desired

speed is flashed press SW1, LED2 will fast flash until SW1 is

released. G speed has now been selected. Next select low

speed, and high speed blower selections following the same

process above. After third selection has been made, the

control will exit the variable speed ECM configuration mode.

Aux blower speed will remain at default or current setting

and requires the AID Tool for adjustment.

Reset Configuration Mode

The control is placed in reset configuration mode by holding

the push button switch SW1 on the ABC for 50 to 60 seconds.

This will reset all configuration settings and the EEPROM

back to the factory default settings. LED3 (green) will turn off

when entering reset configuration mode. Once LED3 (green)

turns off, release SW1 and the control will reset.

ABC DIP Switch (SW2)

SW2-1 FP1 Selection – Low water coil temperature limit

setting for freeze detection. On = 30°F; Off = 15°F.

SW2-2 FP2 Selection – Low air coil temperature limit setting

for freeze detection. On = 30°F; Off = Not Used

SW2-3 RV – O/B - thermostat type. Heat pump

thermostats with “O” output in cooling or “B”

output in Heating can be selected. On = O; Off = B.

SW2-4 Access Relay Operation (P2)

and 2-5

Access Relay Operation SW2-4 SW2-5

Cycle with Blower ON ON

Cycle with Compressor OFF OFF

Water Valve Slow Opening ON OFF

Cycle with Comm. T-stat Hum Cmd OFF ON

SW2-6 CC Operation – selection of single or dual capacity

compressor. On = Single Stage; Off = Dual Capacity

NOTE: SW2-6 is not applicable to the 7 Series

SW2-7 Lockout and Alarm Outputs (P2) – selection of a

continuous or pulsed output for both the LO and

ALM Outputs. On = Continuous; Off = Pulsed

NOTE: SW2-7 is not applicable to the 7 Series

SW2-8 Future Use

Alarm Jumper Clip Selection

From the factory, ALM is connected to 24 VAC via JW2. By

cutting JW2, ALM becomes a dry contact connected to ALG.


21


Variable Speed ECM Blower Speeds

The blower speeds can be changed either by using the

variable speed ECM manual configurations mode method

or by using the Aurora AID Tool directly (see Instruction

Guide: Aurora Interface and Diagnostics (AID) Tool topic).

AXB DIP Switch (SW1)

DIP 1 - ID: This is the AXB ModBus ID and should always

read On.

DIP 2 & 3 - Future Use

DIP 4 & 5 - Accessory Relay2: A second, DIP configurable,

accessory relay is provided that can be cycled with the

compressor 1 or 2 , blower, or the Dehumidifier (DH)

input. This is to complement the Accessory 1 Relay on

the ABC board.

Position DIP 4 DIP 5 Description

1 ON ON Cycles with blower or ECM (or G)

2 OFF ONCycles with CC1 first stage of compressor

or compressor spd 1-12

3 ON OFFCycles with CC2 second stage of

compressor or compressor spd 7-12

4 OFF OFF Cycles with DH input from ABC board

Field Selectable Options via Software(Selectable via the Aurora AID Tool)

Many options are field selectable and configurable in

Aurora software via the AID Tool. Consult the installation

manual or Aurora documentation for further details.

Basic Aurora Safety Features The following safety features are provided to protect the

compressor, heat exchangers, wiring and other components

from damage caused by operation outside of design

conditions.

Fuse – a 3 amp automotive type plug-in fuse provides

protection against short circuit or overload conditions.

Anti-Short Cycle Protection – 4 minute anti-short cycle

protection for the compressor.

Random Start – 5 to 80 second random start upon power up.

Fault Retry – in the fault condition, the control will stage off

the outputs and then “try again” to satisfy the thermostat

VS call. Once the thermostat input calls are satisfied,

the control will continue on as if no fault occurred. If 3

consecutive faults occur without satisfying the thermostat

VS call, then the control will go to Lockout mode.

Lockout – when locked out, the blower will operate

continuously in “G” blower speed setting. The Alarm output

(ALM) and Lockout output (L) will be turned on. The fault

type identification display LED1 (Red) shall flash the fault

code. To reset lockout conditions with SW2-8 On, the demand

call must be removed for at least 30 seconds. To reset lockout

conditions with SW2-8 Off, the demand call must be removed

for at least 30 seconds. Lockout may also be reset by

turning power off for at least 30 seconds or by enabling the

emergency shutdown input for at least 30 seconds.

Lockout With Emergency Heat - if the control is locked

out in the heating mode, and a call for emergency heat

is received, the control will operate in the emergency

heat mode while the compressor is locked out. The first

emergency heat output will be energized 10 seconds after

the W input is received, and the blower will shift to high

speed. If the control remains locked out, and the W input

is present, additional stage of emergency heat will stage

on after 2 minutes. When the W input is removed, all of

the emergency heat outputs will turn off, and the variable

speed ECM blower will shift to low speed.

High Pressure – fault is recognized when the Normally

Closed High Pressure Switch, P4-9/10 opens, no matter how

momentarily. The High Pressure Switch is electrically in series

with the Compressor Contactor and serves as a hardwired

limit switch if an overpressure condition should occur.

Low Pressure - fault is recognized when the Normally

Closed Low Pressure Switch, P4-7/8 is continuously open

for 30 seconds. Closure of the LPS any time during the 30

second recognition time restarts the 30 second continuous

open requirement. A continuously open LPS shall not be

recognized during the 2 minute startup bypass time.

Loss of Charge – fault is recognized when the Normally

Closed Low Pressure Switch, P4-7/8 is open prior to the

compressor starting.

Condensate Overflow - fault is recognized when the

impedance between this line and 24 VAC common or chassis

ground drops below 100K ohms for 30 seconds continuously.

CAUTION: Frequent cycling of power to the drive can damage the drive! Wait at least 5 minutes between cycles (connecting and disconnecting power to the drive).


22


Freeze Detection-(Coax) - set points shall be either 30°F

or 15°F. When the thermistor temperature drops below

the selected set point, the control shall begin counting

down the 30 seconds delay. If the thermistor value rises

above the selected set point, then the count should reset.

The resistance value must remain below the selected set

point for the entire length of the appropriate delay to be

recognized as a fault. This fault will be ignored for the initial

2 minutes of the compressor run time.

Freeze Detection-(Air Coil) - Air Coil Freeze Detection will

use the FP2 input to protect against ice formation on the

air coil. The FP2 input will operate exactly like FP1 except

that the set point is 30 degrees and is not field adjustable.

Over/Under Voltage Shutdown - An over/under voltage

condition exists when the control voltage is outside the

range of 18 VAC to 30 VAC. If the over/under voltage

shutdown lasts for 15 minutes, the lockout and alarm relay

will be energized. Over/under voltage shutdown is self-

resetting in that if the voltage comes back within range

of 18 VAC to 30 VAC for at least 0.5 seconds, then normal

operation is restored.

Other Lockouts and Alarms

Several other lockouts and alarms are shown in the Status

LED1 (LED1, Red) table with the associated codes visible on

the thermostat, ABC Fault LED, and in text in the AID Tool.

Operation Description Power Up - The unit will not operate until all the inputs and

safety controls are checked for normal conditions. The unit

has a 5 to 80 second random start delay at power up. Then

the compressor has a 4 minute anti-short cycle delay after

the random start delay.

Standby - In standby mode the compressor, pump, and

blower motor are not active. The RV may be active. The

blower and compressor will be off.

Heating Operation - The unit will operate based upon demand

as calculated by the room setpoint algorithm. The resulting

compressor speed (1-12) will also select an appropriate blower

speed for the selected compressor speed. Aux Heat will not be

available (on IntelliZone2 Aux Heat is available on compressor

speeds 10-12) until after the 12th compressor speed has been

operational and still is not satisfying the thermostat, then

auxiliary electric heat will be activated.

Emergency Heat (W) - The blower will be started on G

speed, 10 seconds later the first stage of electric heat will

be turned on. 5 seconds after the first stage of electric

heat is energized the blower will shift to Aux speed. If the

emergency heat demand is not satisfied after 2 minutes the

second electric heat stage will be energized.

Cooling Operation - The unit will operate based upon

demand as calculated by the room setpoint algorithm. The

resulting compressor speed, speeds 1-12, will also select

an appropriate blower speed. The blower mode will also

have the cooling airflow adjustment applied. In all cooling

operations, the reversing valve directly tracks the O input.

Thus, anytime the O input is present, the reversing valve

will be energized.


23


Controls - Aurora Advanced Variable Speed Control cont.Blower (G) - The blower will start immediately upon

receiving a thermostat G command. If there are no other

commands from the thermostat the variable speed ECM

will run on low speed until the G command is removed.

Regardless of blower input (G) from the thermostat, the

blower will remain on low speed for 30 seconds at the end

of each heating, cooling, and emergency heat cycle.

Emergency Shutdown - Four (4) seconds after a valid ES

input, P2-7 is present, all control outputs will be turned off

and remain off until the emergency shutdown input is no

longer present. The first time that the compressor is started

after the control exits the emergency shutdown mode,

there will be an anti-short cycle delay followed by a random

start delay. Input must be tied to common to activate.

Continuous Blower Operation - The blower output will

be energized any time the control has a G input present,

unless the control has an emergency shutdown input

present. The blower output will be turned off when G input

is removed.

Load Shed - The LS input disables all outputs with the

exception of the blower output. When the LS input has been

cleared, the anti-short cycle timer and random start timer

will be initiated. Input must be tied to common to activate.

Status LED (LED3, Green)Description of Operation Fault LED, Green

Normal Mode ON

Control is Non-functional OFF

Test Mode Slow Flash

Lockout Active Fast Flash

Dehumidification Mode Flash Code 2

Load Shed Flash Code 5

Emergency Shutdown Flash Code 6

On Peak Mode Flash Code 7

Warning! VS Derated Flash Code 8

Warning! VS SafeMode Flash Code 9

Configuration LED (LED2, Yellow)Description of Operation Configuration LED, Yellow

No Software Overwritten ECM Setting

DIP Switch Overwritten Slow Flash

ECM Configuration Mode Fast Flash

Reset Configuration Mode OFF

Aurora Advanced VS Control LED DisplaysThese three LEDs display the status, configuration, and

fault codes for the control. These can also be read in plain

English via the Aurora AID Tool. See the LED tables for

further explanation.

Aurora Interface and Diagnostics (AID) ToolThe Aurora Interface and

Diagnostics (AID) Tool is

a device that is a member

of the Aurora network.

The AID Tool is used to

troubleshoot equipment

which uses the Aurora

control via Modbus RTU

communication. The AID

Tool provides diagnostics,

fault management, variable speed ECM setup, and system

configuration capabilities to the Aurora family of controls.

An AID Tool is recommended, although not required, for

variable speed ECM airflow settings. The AID Tool simply

plugs into the exterior of the cabinet in the AID Tool port.

24



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at

inp

ut

err

or.

Au

tore

set

up

on

co

nd

itio

n r

em

oval.

No

rmal

Co

de 1

Fau

lt-H

igh

Pre

ssu

re2

2Y

es

Hard

or

So

ftH

P s

wit

ch

has

trip

ped

(>

60

0 p

si)

Lo

cko

ut

Co

de 2

Lo

cko

ut

- E

2 H

igh

Pre

ssL

ocko

ut

- E

2 H

igh

Pre

ssF

au

lt-L

ow

Pre

ssu

re3

3Y

es

Hard

or

So

ftL

ow

Pre

ssu

re S

wit

ch

has

trip

ped

(<

40

psi

fo

r 3

0 c

on

tin

ou

s se

c.)

Lo

cko

ut

Co

de 3

Lo

cko

ut

- E

3 L

ow

Pre

ssL

ocko

ut

- E

3 L

ow

Pre

ssF

au

lt-F

reeze D

ete

cti

on

FP

24

4Y

es

Hard

or

So

ftF

reeze p

rote

cti

on

sen

sor

has

trip

ped

(<

15 o

r 3

0 d

eg

F f

or

30

co

nti

nu

ou

s se

c.)

Lo

cko

ut

Co

de 4

Lo

cko

ut

- E

4 F

reeze D

ete

cti

on

FP

2L

ocko

ut

- E

4 F

reeze D

ete

cti

on

FP

2F

au

lt-F

reeze D

ete

cti

on

FP

15

5Y

es

Hard

or

So

ftF

reeze p

rote

cti

on

sen

sor

has

trip

ped

(<

15 o

r 3

0 d

eg

F f

or

30

co

nti

nu

ou

s se

c.)

Lo

cko

ut

Co

de 5

Lo

cko

ut

- E

5 F

reeze D

ete

cti

on

FP

1L

ocko

ut

- E

5 F

reeze D

ete

cti

on

FP

1F

au

lt-L

oss

of

Ch

arg

e6

6Y

es

Hard

or

So

ftL

ow

Pre

ssu

re S

wit

ch

op

en

pri

or

to c

om

pre

sso

r st

art

(U

PC

On

ly)

Lo

cko

ut

Co

de 6

Lo

cko

ut

- E

6L

ocko

ut

- E

6F

au

lt-C

on

den

sate

Overf

low

77

Yes

Hard

or

So

ftC

on

den

sate

sw

itch

has

sho

wn

co

nti

nu

ity f

or

30

co

nti

nu

ou

s se

c.

Lo

cko

ut

Co

de 7

Lo

cko

ut

- E

7 C

on

den

sate

Lo

cko

ut

- E

7 C

on

den

sate

Fau

lt-O

ver/

Un

der

Vo

ltag

e8

8N

o**

Au

toIn

stan

tan

eo

us

Vo

ltag

e is

ou

t o

f ra

ng

e. **

Co

ntr

ols

sh

ut

do

wn

un

til re

solv

ed

.L

ocko

ut

Co

de 8

Lo

cko

ut

- E

8 O

ver/

Un

der

vo

ltag

eL

ocko

ut

- E

8 O

ver/

Un

der

vo

ltag

eF

au

lt-A

irF

low

/RP

M9

9Y

es

Hard

or

So

ftN

ot

use

dL

ocko

ut

Co

de 9

Lo

cko

ut

- E

9 A

irfl

ow

/RP

ML

ocko

ut

- E

9 A

irfl

ow

/RP

MF

au

lt-C

om

pre

sso

r M

on

ito

r10

10Y

es

Hard

or

So

ftO

pen

Crk

t, R

un

, S

tart

or

weld

ed

co

nt

Lo

cko

ut

Co

de 1

0L

ocko

ut

- E

10 C

om

pre

ss M

on

ito

rL

ocko

ut

- E

10 C

om

pre

ss M

on

ito

rF

au

lt-F

P1

& 2

Sn

sr E

rro

r11

11Y

es

Hard

or

So

ftIf

FP

1 o

r 2 S

en

sor

Err

Lo

cko

ut

Co

de 1

1L

ocko

ut

- E

11 F

P1/

FP

2 S

en

sor

Err

or

Lo

cko

ut

- E

11 F

P1/

FP

2 S

en

sor

Err

or

ABC & AXB Advanced Faults

Err

or-

Refr

ig P

erf

orm

1212

--

No

t U

sed

-C

od

e 1

2-

-N

on

-Cri

ticA

XB

Sn

srE

rr13

13N

oA

uto

An

y O

ther

Sen

sor

Err

No

rmal

Co

de 1

3A

lert

- E

13 N

on

-Cri

tical A

XB

Sen

sor

Err

or

Ale

rt -

E13

No

n-C

riti

cal A

XB

Sen

sor

Err

or

Cri

ticA

XB

Sn

srE

rr14

14Y

es

Hard

or

So

ftS

en

sor

Err

fo

r E

EV

or

HW

Lo

cko

ut

Co

de 1

4L

ocko

ut

- E

14 C

riti

cal A

XB

Sen

sor

Err

or

Lo

cko

ut

- E

14 C

riti

cal A

XB

Sen

sor

Err

or

Ala

rm-H

otW

tr15

15N

oA

uto

HW

over

limit

or

log

ic lo

cko

ut.

HW

pu

mp

deacti

vate

d.

No

rmal

Co

de 1

5A

lert

- E

15 H

ot

Wate

r Te

mp

Lim

it-

Fau

lt-V

arS

pd

Pu

mp

1616

No

Au

toA

lert

is

read

fro

m P

WM

feed

back.

No

rmal

Co

de 1

6A

lert

- E

16 V

ar

Sp

d P

um

p E

rrA

lert

- E

16 V

ar

Sp

d P

um

p E

rrF

au

lt-Z

on

e F

au

lt17

17N

oA

uto

IZ2 C

om

Fau

lt. A

uto

rese

t u

po

n c

on

dit

ion

rem

oval.

(No

t Im

ple

men

ted

)N

orm

al

Co

de 1

7W

arn

ing

- E

17 IZ

2 C

om

m E

rro

rW

arn

ing

- E

17 IZ

2 C

om

m E

rro

rN

on

-Cri

tCo

mE

rr18

18N

oA

uto

An

y n

on

-cri

tical co

m e

rro

rN

orm

al

Co

de 1

8A

lert

- E

18 N

on

-Cri

tical C

om

mu

nic

ati

on

Err

or

Ale

rt -

E18

No

n-C

riti

cal C

om

mu

nic

ati

on

Err

or

Fau

lt-C

ritC

om

Err

1919

No

Au

toA

ny c

riti

cal co

m e

rro

r. A

uto

rese

t u

po

n c

on

dit

ion

rem

oval

No

rmal

Co

de 1

9A

lert

- E

19 C

riti

cal C

om

mu

nic

ati

on

Err

or

Ale

rt -

E19

Cri

tical C

om

mu

nic

ati

on

Err

or

UP

C C

om

mu

nic

ati

on

Lo

ss20

-Y

es

Au

toU

PC

/AB

C c

om

mu

nic

ati

on

lo

ss (

UP

C O

nly

)N

orm

al

-A

larm

- L

ow

Lo

op

Pre

ssu

re21

21

No

Au

toL

oo

p p

ress

ure

is

belo

w 3

psi

fo

r m

ore

th

an

3 m

inu

tes

No

rmal

Co

de 2

1A

lert

- E

51

Lo

w L

oo

p P

ress

ure

-C

om

EC

M F

an

Mo

tor

22

22

--

No

t u

sed

-C

od

e 2

2-

-A

larm

- H

om

e A

uto

mati

on

123

23

No

Au

toC

lose

d c

on

tact

inp

ut

is p

rese

nt

on

Dig

2 in

pu

t -

Text

is c

on

fig

ura

ble

No

rmal

Co

de 2

3A

lert

- E

23

Sele

cte

d c

ho

ice

Ale

rt -

E23

Sele

cte

d c

ho

ice

Ala

rm -

Ho

me A

uto

mati

on

224

24

No

Au

toC

lose

d c

on

tact

inp

ut

is p

rese

nt

on

Dig

3 in

pu

t -

Text

is c

on

fig

ura

ble

No

rmal

Co

de 2

4A

lert

- E

24

Sele

cte

d C

ho

ice

Ale

rt -

E24

Sele

cte

d C

ho

ice

Fau

lt -

AX

B E

EV

Err

or

25

25

Yes

Au

toA

XB

EE

V E

rro

rN

orm

al

Co

de 2

5L

ocko

ut

- E

25

AX

B E

EV

Err

or

Lo

cko

ut

- E

25

AX

B E

EV

Err

or

Fau

lt -

Lo

w E

nte

rin

g W

ate

r26

26

No

Au

toE

nte

rin

g W

ate

r Te

mp

era

ture

Belo

w F

au

lt L

imit

Lo

cko

ut

Co

de 2

6-

-F

au

lt -

Hig

h E

nte

rin

g W

ate

r27

27

No

Au

toE

nte

rin

g W

ate

r Te

mp

era

ture

Ab

ove F

au

lt L

imit

Lo

cko

ut

Co

de 2

7-

-F

au

lt -

Lo

w L

eavin

g W

ate

r28

28

No

Au

toL

eavin

g W

ate

r Te

mp

era

ture

Belo

w F

au

lt L

imit

Lo

cko

ut

Co

de 2

8-

-F

au

lt -

Hig

h L

eavin

g W

ate

r29

29

No

Au

toL

eavin

g W

ate

r Te

mp

era

ture

Ab

ove F

au

lt L

imit

Lo

cko

ut

Co

de 2

9-

-U

PC

30

-N

oA

uto

Zo

ne T

em

pera

ture

Sen

sor

Un

relia

ble

(U

PC

On

ly)

No

rmal

--

-

Dual Compressor 2nd ABC

Fau

lt -

So

urc

e F

low

Sw

itch

31

31

No

Au

toS

ou

rce F

low

Sw

itch

Op

en

Lo

cko

ut

Co

de 3

1-

-F

au

lt -

Lo

ad

Flo

w S

wit

ch

32

32

No

Au

toL

oad

Flo

w S

wit

ch

Op

en

Lo

cko

ut

Co

de 3

2-

-R

ese

rved

33

33

--

No

t U

sed

--

--

Rese

rved

34

34

--

No

t U

sed

--

--

Rese

rved

35

35

--

No

t U

sed

--

--

Rese

rved

36

36

--

No

t U

sed

--

--

Rese

rved

37

37

--

No

t U

sed

--

--

Rese

rved

38

38

--

No

t U

sed

--

--

Rese

rved

39

39

--

No

t U

sed

--

--

40

40

--

No

t u

sed

--

--

VS Drive

Dera

te-D

riveTe

mp

41

41

No

Au

toD

rive T

em

p h

as

reach

ed

cri

tical H

igh

Tem

pD

era

ted

Co

de 4

1W

arn

ing

! D

era

ted

- E

41

Dri

veTe

mp

Warn

ing

! D

era

ted

- E

41

Dri

veTe

mp

Dera

te-H

iDis

Tem

p4

24

2N

oA

uto

Co

mp

ress

or

Dis

ch

arg

e ise

xceed

ed

lim

it f

or

90

co

nti

nu

ou

s se

c..

Dera

ted

Co

de 4

2W

arn

ing

! D

era

ted

- E

42 H

iDis

Tem

pW

arn

ing

! D

era

ted

- E

42 H

iDis

Tem

pD

era

te-L

oS

ucP

res

43

43

No

Au

toS

ucti

on

Pre

ssu

re is

cri

tically

lo

wD

era

ted

Co

de 4

3W

arn

ing

! D

era

ted

- E

43

Lo

Su

cP

res

Warn

ing

! D

era

ted

- E

43

Lo

Su

cP

res

Dera

te-L

oC

on

Pre

s4

44

4N

oA

uto

Co

nd

en

sin

g p

ress

ure

is

cri

tically

lo

wD

era

ted

Co

de 4

4W

arn

ing

! D

era

ted

- E

44

Lo

Co

nP

ress

Warn

ing

! D

era

ted

- E

44

Lo

Co

nP

ress

Dera

te-H

iCo

nP

res

45

45

No

Au

toC

on

den

sin

g p

ress

ure

is

cri

tically

hig

hD

era

ted

Co

de 4

5W

arn

ing

! D

era

ted

- E

45

HiC

on

Pre

ssW

arn

ing

! D

era

ted

- E

45

HiC

on

Pre

ssD

era

te-O

utP

wrL

mt

46

46

No

Au

toS

up

ply

Vo

ltag

e is

<20

8V

or

Max P

wr

is r

each

ed

du

e t

o h

igh

pre

ssu

reD

era

ted

Co

de 4

6W

arn

ing

! D

era

ted

- E

46

Ou

tPw

rLm

tW

arn

ing

! D

era

ted

- E

46

Ou

tPw

rLm

tS

afe

Md

-EE

VIn

dC

om

47

47

No

Au

toC

om

wit

h E

EV

is

inte

rup

ted

EE

V h

as

go

ne in

dep

en

den

t m

od

eS

afe

Mo

de

Co

de 4

7W

arn

ing

! S

afe

Mo

de -

E4

7 E

EV

Ind

Co

mW

arn

ing

! S

afe

Mo

de -

E4

7 E

EV

Ind

Co

mS

afe

Md

-EE

VO

utC

om

48

48

No

Au

toC

om

wit

h E

EV

is

inte

rup

ted

EE

V h

as

go

ne in

dep

en

den

t m

od

eS

afe

Mo

de

Co

de 4

8W

arn

ing

! S

afe

Mo

de -

E4

8E

EV

Ou

tCo

mW

arn

ing

! S

afe

Mo

de -

E4

8E

EV

Ou

tCo

mS

afe

Md

-Am

bTm

pS

nr

49

49

No

Au

toA

mb

ien

t Te

mp

era

ture

(Ta

mb

) is

<-7

6 o

r >

212

F a

nd

ou

t o

f ra

ng

e o

r in

valid

Safe

Mo

de

Co

de 4

9W

arn

ing

! S

afe

Mo

de -

E4

9W

arn

ing

! S

afe

Mo

de -

E4

9F

au

lt-D

isTm

pS

nr

51

51

Yes

Hard

or

So

ftD

isch

arg

e S

en

sor

(Sd

) is

> 2

80

F o

r in

valid

(-7

6 t

o 3

92 F

)L

ocko

ut

Co

de 5

1L

ocko

ut!

- E

51

Dis

Tm

pS

nr

Lo

cko

ut!

- E

51

Dis

Tm

pS

nr

Fau

lt-S

ucP

rsS

nr

52

52

Yes

Hard

or

So

ftS

ucti

on

Pre

ssu

re (

P0

) is

invalid

(0

to

23

2 p

si)

Lo

cko

ut

Co

de 5

2L

ocko

ut!

- E

52 S

ucP

rsS

nr

Lo

cko

ut!

- E

52 S

ucP

rsS

nr

Fau

lt-C

on

Prs

Sn

r5

35

310

x

then

Y

es

Hard

or

So

ftL

ow

co

nd

en

sin

g p

ress

ure

(P

D)

or

invalid

(0

to

870

psi

) R

etr

y 1

0x.

No

rm t

hen

L

ocko

ut

Co

de 5

3L

ocko

ut!

- E

53

Co

nP

rsS

nr

Lo

cko

ut!

- E

53

Co

nP

rsS

nr

Fau

lt-L

ow

Su

pV

olt

54

54

Yes

Hard

or

So

ftS

up

ply

Vo

ltag

e is

<17

5 V

(19

0V

to

rese

t) o

r p

ow

ere

d o

ff/o

n t

oo

qu

ickly

(<

30

sec.)

.L

ocko

ut

Co

de 5

4L

ocko

ut!

- E

54

Lo

wS

up

Vo

ltL

ocko

ut!

- E

54

Lo

wS

up

Vo

lt

Fau

lt-O

utE

nvelo

p5

55

510

x

then

Y

es

Hard

or

So

ftC

om

p O

pera

tin

g o

ut

of

envelo

pe (

P0

) m

ore

th

an

90

sec. R

etr

y 1

0x.

No

rm t

hen

L

ocko

ut

Co

de 5

5L

ocko

ut!

- E

55

Ou

tEnvelo

p-

Fau

lt-O

verC

urr

nt

56

56

Yes

Hard

or

So

ftO

ver

cu

rren

t tr

ipp

ed

by p

hase

lo

ss, eart

h f

au

lt, sh

ort

cir

cu

it o

r m

ajo

r d

rive f

au

lt.

Lo

cko

ut

Co

de 5

6L

ocko

ut!

- E

56

OverC

urr

nt

Lo

cko

ut!

- E

56

OverC

urr

nt

Fau

lt-O

ver/

Un

derV

olt

57

57

Yes

Hard

or

So

ftD

C L

ink V

olt

ag

e t

o c

om

pre

sso

r is

>25

3V

or

at

min

imu

m V

olt

.

Lo

cko

ut

Co

de 5

7L

ocko

ut!

- E

57 O

ver/

Un

der

Vo

ltL

ocko

ut!

- E

57 O

ver/

Un

der

Vo

ltF

au

lt-H

iDri

vTe

mp

58

58

Yes

Hard

or

So

ftD

rive T

em

p h

as

reach

ed

cri

tical H

igh

Tem

p >

23

9 F

Lo

cko

ut

Co

de 5

8L

ocko

ut!

- E

58

HiD

rivTe

mp

Lo

cko

ut!

- E

58

HiD

rivTe

mp

Fau

lt-D

rvIn

tErr

MO

C/A

OC

59

59

Yes

Hard

or

So

ftT

he M

OC

has

en

co

un

tere

d a

n in

tern

al fa

ult

or

an

in

tern

al err

or.

Pro

bab

ly f

ata

l.L

ocko

ut

Co

de 5

9L

ocko

ut!

- E

59

Drv

IntE

rrL

ocko

ut!

- E

59

Drv

IntE

rrF

au

lt-M

ult

Safe

Md

61

61

Yes

Hard

or

So

ftM

ore

th

an

on

e S

afe

Mo

de c

on

dit

ion

is

pre

sen

t re

qu

irin

g lo

cko

ut.

Lo

cko

ut

Co

de 6

1L

ocko

ut!

- E

61

Mu

ltS

afe

Md

Lo

cko

ut!

- E

61

Mu

ltS

afe

Md

Fau

lt -

Lo

w T

em

p6

26

2Y

es

Au

toV

S D

rive T

em

pera

ture

Lo

wL

ocko

ut

Co

de 6

2E

62

E6

2F

au

lt -

Fau

tl L

imit

63

63

Yes

Au

toV

S D

rive F

au

lt L

imit

Reach

ed

Lo

cko

ut

Co

de 6

3E

63

E6

3F

au

lt -

Dri

ve H

ard

ware

64

64

Yes

Hard

or

So

ftD

rive H

ard

ware

Fau

ltL

ocko

ut

Co

de 6

4E

64

E6

4F

au

lt -

Dri

ve S

oft

Sta

rt6

56

5N

oA

uto

So

ft S

tart

did

no

t su

cceed

Lo

cko

ut

Co

de 6

5E

65

E6

5F

au

lt -

Dri

ve L

ocked

Ro

tor

66

66

Yes

Hard

or

So

ftL

ocked

Ro

tor

or

ph

asi

ng

err

or

Lo

cko

ut

Co

de 6

6E

66

E6

6F

au

lt -

Dri

ve M

icro

67

67

Yes

Hard

Dri

ve M

icro

pro

cess

or

Fau

ltL

ocko

ut

Co

de 6

7E

67

E6

7N

ot

Use

d6

86

8-

--

-In

valid

/Mis

sin

g C

om

p ID

69

69

No

Au

toC

om

pre

sso

r ID

nu

mb

er

in A

BC

do

es

no

t m

atc

h V

S D

rive ID

or

is s

et

to 0

.L

ocko

ut

Co

de 6

9E

69

E6

970

70

--

No

t u

sed

--

--

Ind/Pkg EEV2

Fau

lt-L

oss

ofC

harg

e7

17

1Y

es

Hard

or

So

ftH

igh

su

perh

eat

an

d h

igh

EE

V o

pen

ing

% f

or

a lo

ng

tim

e w

ill t

rig

ger

a lo

ss o

f ch

arg

e f

au

ltL

ocko

ut

Co

de 7

1L

ocko

ut!

- E

71

Lo

ssC

harg

eL

ocko

ut!

- E

71

Lo

ssC

harg

eS

afe

Md

-Su

cTm

pS

nr

72

72

No

Au

toS

ucti

on

Tem

pera

ture

Sen

sor

(??)

is invalid

(-7

6 t

o 3

92 F

)S

afe

Mo

de

Co

de 7

2W

arn

ing

! S

afe

Mo

de -

E72 S

ucTm

pS

nr

Warn

ing

! S

afe

Mo

de -

E72 S

ucTm

pS

nr

Safe

Md

-LA

TS

en

sor

73

73

No

Au

toL

eavin

g A

ir T

em

pera

ture

Sen

sor

(??)

is invalid

(-7

6 t

o 3

92 F

)N

orm

al

Co

de 7

3A

lert

- E

73

LA

T S

en

sor

-S

afe

Md

-MaxO

pP

res

7474

No

Au

toS

ucti

on

pre

ssu

re h

as

exceed

ed

th

at

maxim

um

op

era

tin

g level fo

r 9

0 s

ec.

Safe

Mo

de

Co

de 7

4W

arn

ing

! S

afe

Mo

de -

E74

MaxO

pP

ress

Warn

ing

! S

afe

Mo

de -

E74

MaxO

pP

ress

Outdoor EEV1

Fau

lt-L

oss

ofC

harg

e75

75

Yes

Hard

or

So

ftH

igh

su

perh

eat

an

d h

igh

EE

V o

pen

ing

% f

or

a lo

ng

tim

e w

ill t

rig

ger

a lo

ss o

f ch

arg

e f

au

ltL

ocko

ut

Co

de 7

5L

ocko

ut!

- E

75

Lo

ss C

harg

eL

ocko

ut!

- E

75

Lo

ss C

harg

eS

afe

Md

-Su

cTm

pS

nr

76

76

No

Au

toS

ucti

on

Tem

pera

ture

Sen

sor

(??)

is invalid

(-7

6 t

o 3

92 F

)S

afe

Mo

de

Co

de 7

6W

arn

ing

! S

afe

Mo

de -

E76

Su

cTm

pS

nr

Warn

ing

! S

afe

Mo

de -

E76

Su

cTm

pS

nr

Safe

Md

-LA

TS

en

sor

77

77

No

Au

toL

eavin

g A

ir T

em

pera

ture

Sen

sor

(??)

is invalid

(-7

6 t

o 3

92 F

)N

orm

al

Co

de 7

7A

lert

- E

77 L

AT

Sen

sor

-S

afe

Md

-MaxO

pP

res

78

78

No

Au

toS

ucti

on

pre

ssu

re h

as

exceed

ed

th

at

maxim

um

op

era

tin

g level fo

r 9

0 s

ec.

Safe

Mo

de

Co

de 7

8W

arn

ing

! S

afe

Mo

de -

E78

MaxO

pP

ress

Warn

ing

! S

afe

Mo

de -

E78

MaxO

pP

ress

79

-98

79

-98

--

No

t u

sed

--

--

Po

wer

cycle

99

--

-C

ou

nt

will

in

cre

ase

each

tim

e p

ow

er

is a

pp

lied

to

AB

CN

orm

al

-E

99

-

UPC Rooftop Sensor Faults

OA

T S

en

sor

Fau

lty

101

--

-O

utd

oo

r A

ir T

em

pera

ture

Sen

sor

read

ing

invalid

--

--

OA

T S

en

sor

Mis

sin

g10

2-

--

Ou

tdo

or

Air

Tem

pera

ture

Sen

sor

no

t co

mm

un

icati

ng

--

--

OA

H S

en

sor

Fau

lty

103

--

-O

utd

oo

r A

ir H

um

idit

y S

en

sor

read

ing

invalid

--

--

OA

H S

en

sor

Mis

sin

g10

4-

--

Ou

tdo

or

Air

Hu

mid

ity S

en

sor

no

t co

mm

un

icati

ng

--

--

RA

T S

en

sor

Fau

lty

105

--

-R

etu

rn A

ir T

em

pera

ture

Sen

sor

read

ing

invalid

--

--

RA

T S

en

sor

Mis

sin

g10

6-

--

Retu

rn A

ir T

em

pera

ture

Sen

sor

no

t co

mm

un

icati

ng

--

--

RA

H S

en

sor

Fau

lty

107

--

-R

etu

rn A

ir H

um

idit

y S

en

sor

read

ing

invalid

--

--

RA

H S

en

sor

Mis

stin

g10

8-

--

Retu

rn A

ir H

um

idit

y S

en

sor

no

t co

mm

un

icati

ng

--

--

Software Support Faults

Co

mp

ress

or

Su

pp

ort

Fau

lt12

0-

--

Inco

rrect

AB

C/A

XB

so

ftw

are

fo

r H

yd

roL

ink C

on

tro

l o

f co

mp

ress

ors

No

rmal

--

-

Blo

wer

Su

pp

ort

Fau

lt12

1In

co

rrect

AB

C/A

XB

so

ftw

are

fo

r H

yd

roL

ink C

on

tro

l o

f b

low

er

No

rmal

--

-

Pu

mp

Su

pp

ort

Fau

lt12

2In

co

rrect

AB

C/A

XB

so

ftw

are

fo

r H

yd

roL

ink C

on

tro

l o

f p

um

pN

orm

al

--

-

No

te: *

All

co

des

>11

u

se lo

ng

fla

sh f

or

ten

s d

igit

an

d s

ho

rt f

lash

fo

r th

e o

nes

dig

it. 2

0, 3

0, 4

0, 5

0 e

tc. w

ill b

e s

kip

ped

! A

lert

’ is

a n

on

cri

tical se

nso

r o

r fu

ncti

on

th

at

has

faile

d. N

orm

al o

pera

tio

n o

f th

e h

eat

pu

mp

is

main

tain

ed

bu

t se

rvic

e is

desi

red

at

som

e p

oin

t. 11

/1/2

017

25



CC2

Fact

ory

Fault

ALG

ALM

LSES

ACC

c

Status

AuroraTM BaseControl

RV – K1

CC

2

CC – K2

CC Hi – K3

Fan – K4

Alarm – K5

Acc – K6

ACC

no

ACC

nc

O/BCRLO G Y1 Y2 W DH

3A-F

use


LOG

HICCGCCFGFR

HPHPLP

FP2FP2FP1

REVREV

CFM

PWM

ECM PWM

Fact

ory

Factory Fan Connection

R R

CC

C

C

R

(-)

(+)R

S 48

5

EH2C

EH1C

CO

(+)(-)RC

RS4

85Ex

pFa

ctor

y

Com1

Com2

Config

G

G

G

YR

SW1 Test

FP1 – 15oF/30oF

JW2 - Alarm

P11

P5

P2 P1

P8

P7

P9

P6

P3

SW2

P13P4 FP2 – 15oF/30oF

RV – B/O

ACC – Dip 1

ACC – Dip 2

CC – Dual/SingleL – Pulse/Continuous

Reheat/Normal

Fact

ory

Use

Field ConnectionsField Connections

C

LP

FP1

F

CC

G

Y1

1

2

3

4

5

6

7

8

Off On

N/A

RS4

85 N

ET

EH1LED 1

LED 3

LED 2

LED 5

LED 4

SCT

SUC

PHW HW

MOTO

R

RS48

5

P7ZO

NE

P9

ABC

STEP

PER

ANA

SPR

DHDI

V

NO

CO

M

K6

NO

CO

M

K5

C R L1 L1 L2 L2P1

2P1

0P5

P11

CR(-)(+) CR(-)(+) CR(-)(+)

P4P2

K1K2

K3

HA2

HA1

SGI

LOOP

PWM

VSSL

OSL

IP3

V+CRTXRX +5

P14

LLT

P1LA

TFL

OWLW

TEW

T

CT2

43

CT2

43

CT1

21

CT1

21

StatusG

DISC

HP1

6

P17

P18

P15

(Aurora Expansion Board)AXB™

See Figure 1 for DHW wiring.

SW1

Modbus Add. IDFuture Use

12345

ONOFF

Future UseAcc 2 – Dip 4Acc 2 – Dip 5

P8 P6

ABC Control Board Layout AXB Control Board Layout

Compressor Drive

CC2

EH1

Fact

ory

Faul t

ALG

ALMLSES ACC

c

Status

AURORA BASE CONTROL™

RV – K1

CC2

CC – K2

CC Hi – K3

Fan – K4

Alarm – K5

Acc – K6

ACC

no

ACC

nc


3A-Fu

se


LOG

HICCGCCFGFR

HPHPLP

FP2FP2FP1

REVREV

CFM

PWM

ECM PWM

Fact

ory


R R

CC

C

RS 48

5

EH2C

EH1C

CO

(+)(-)RCRS

485 E

xpFa

ctory

Com1

Com2

Config

G

G

G

YR

SW1 Test

FP1 – 15oF/30oF

JW2 - Alarm

P11

P5

P2 P1

P8

P7

P9

P6

P3

SW2

P13P4 FP2 – 15oF/30oF

RV – B/O

ACC – Dip 4

ACC – Dip 5CC – Dual/Single

L – Pulse/ContinuousReheat/Normal

Fact

ory U

se

Fi eld ConnectionsField Connections

C

LP

FP1

F

CC

G

Y1

1

2

3

4

5

6

7

8

Off On

N/A

RS48

5 NET

LED3

LED2LED1

26


The Aurora Unitary Protocol Converter (UPC) is designed to add-on to any Aurora based heat pump control. The Aurora Unitary Protocol Convertor (UPC) is designed to allow water source heat pumps to be integrated into Building Automation Systems (BAS) with ease. The Aurora UPC is an integrated solution and communicates directly with the Aurora Heat Pump Controls and allows access/control of a variety of internal Aurora heat pump operations such as sensors, relay operation, faults and other information. In turn, the UPC then converts internal Aurora Modbus protocol to BACnet MS/TP, LON, or N2 protocols and communicates to the BAS system. This provides the great benefit of complete control integration and a myriad of information available to the BAS from the heat pump control. Plus it also allows individual unit configuration such as ECM fan speeds or freeze protection setting directly over the BAS without the need for access to the actual heat pump. The Aurora UPC is programmed using the powerful Eikon object oriented.

The Aurora UPC is implemented with the Aurora Base Controller (ABC) heat pump control into our latest water source heat pumps. This will allow for a BAS to integrate

and communicate to the heat pump thru a choice of 3 different communication protocols. The Aurora UPC has the ability to communicate BACnet MS/TP, N2 open, or LonWorks (requires LON Plugin card). This flexibility is possible due to the onboard dipswitches which allow for the desired protocol and baud rate to be selected in the field. All zone temperatures and zone sensors are connected to the UPC on an RNet bus, simplifying hook up at the unit. RNet sensors can include a combination of zone temperature and humidity, CO2, and VOC sensors. The UPC includes built-in support for a custom configurable keypad/display unit - BACview6 (4-line by 40 character per line display) or BACview5 (2-line by 16 character per line display). Up to 2 Keypad/display units can be mounted remotely for configuration and troubleshooting.

There are an extensive number of points that the UPC has available over the network for integration into the BAS. Control programmers need to carefully determine which points they want to add into the BAS database. A list of the BACnet points, N2 points, and LON SNVTs are available along with their individual point descriptions by contacting a factory service representative.

Aurora UPC Controller ZS Series Sensors

Aurora Touch Interface

Controls - UPC DDC Control (optional)

27


Controls - UPC DDC Control (optional) cont.

Aurora UPC Features• Rugged enclosure made of GE C2950 Cycoloy plastic

• Built-in surge transient protection circuitry

• Operating range of -20° to 140°F; 10 to 95% relative hu-

midity, non-condensing

• Onboard CR123A battery has a life of 10 years with 720

hours of cumulative power outage

• Multi-Protocol field selectable communication port

that supports:

• EIA-485 BACnet MS/TP @ 9600, 19.2k, 38.4k, 76.8k baud

• Metasys N2 Open

• LonWorks TP/FT-10 (Requires optional LON plug-in

communication card)

• Status of all unit operating conditions and fault lockouts

• Visual LED’s for status of power, network communication,

processor operation, and errors

• Provides gateway into Aurora heat pump controls for

unsurpassed control flexibility

• Network point for commanding unit into load shed

• Network point for commanding unit into

emergency shutdown

• Network points to assist in fan speed selection

• Network points for freeze protection settings

• Heating and cooling control from a remotely located

zone sensor

• Rnet communication port which allows for multiple Rnet

zone sensors (5) to be connected for space temperature

averaging if desired.

• Local laptop or BACview connection for field service

• FCC, UL and CE listed. BTL Certification is pending

N2

BACnet

LonWorks

BAS

Rnet

Modbus

Aurora UPC Optional Features• BACview handheld display, needed for field configuration

of fan speeds, set points, etc.

• AID Tool for Aurora ABC configuration

and troubleshooting.

• Aurora Advanced Control adds the Aurora AXB

expansion board and provides added I/O and

standard features

• Refrigeration Monitoring – provides Suction and

discharge pressure, Suction, liquid line temps and

superheat and subcooling.

• Performance Monitoring – provides entering and

leaving loop water temperatures, loop flow rate as well

as heat of extraction or rejection rate into the loop.

• Energy Monitoring – provides real-time power

measurement (Watt) of compressor, fan, auxiliary heat

and zone pump.

• Graphics packages available in the future

28



Port 1a is used to

communicate to the

Building Automation

System (BAS). This

port’s settings are

configured through

the onboard dip

switches.

Port 2 is used to

communicate to

the Aurora Base

Controller (ABC).

Port 1b is used for the

LonWorks plugin.

Rnet port is used

for communicating

zone sensors.

BACview or local

laptop connection.

24Vac

Dip switches for

configuring the

communication

port protocol

and baud rate

for the BAS port.

Mac address

is set by 2

rotary dials.

29


Controls - UPC DDC Control (optional) cont.1. Leaving Air Temperature (LAT) Sensor – This 10 kOhm

NTC sensor is factory installed on all UPC equipped

heat pumps. It typically is attached to wiring inside

the blower cabinet on the suction side of the blower.

This sensor is attached on ABC FP2 pins available as

LAT AU-30.

2. Valve End Switch – This optional input is setup for a field

installed flow valve end switch. This end switch input is

attached at ABC Y2 and available at point BV-67.

3. Fan Proving Sensors – This optional factory installed

current sensor is connected to confirm fan operation

via the power wires. The sensor is attached at ABC G

and available at point BV-33.

4. Occupancy Sensor - This standard feature includes a

field installed and wired room sensor with occupancy

sensor typically found in DDC systems. The RNet

room sensors can be found thru your commercial

representative. The occupancy Sensors are attached at

ABC 0 and can be found at point BV-49.

5. Dirty Filter Switch – This optional field installed switch

is connected to confirm dirty filter operation. The

dirty filter switch can be found thru your commercial

representative. The sensor is attached at ABC W and

available at point BV-63.

6. Fault, Configuration, and Status Codes – The codes

can be visible to the BAS if desired

Aurora Advanced Fault Codes (ABC + AXB Expansion Board) Variable Speed

Variable Speed Drive Additions

Red Fault LEDLED Flash

Code *Lockout

Reset/ Remove

Fault Condition Summary

AB

C &

AX

B B

asi

c F

au

lts

Normal - No Faults Off -

Fault-Input 1 No Auto Tstat input error. Autoreset upon condition removal.

Fault-High Pressure 2 Yes Hard or Soft HP switch has tripped (>600 psi)

Fault-Low Pressure 3 Yes Hard or Soft Low Pressure Switch has tripped (<40 psi for 30 continous sec.)

Fault-Freeze Detection FP2 4 Yes Hard or Soft Freeze protection sensor has tripped (<30 degF for 30 continuous sec.)

Fault-Freeze Detection FP15 Yes Hard or Soft Freeze protection sensor has tripped (<15 or 30 degF for 30 continuous

sec.)

Fault-Condensate Overflow 7 Yes Hard or Soft Condensate switch has shown continuity for 30 continuous sec.

Fault-Over/Under Voltage8 No** Auto Instantaneous Voltage is out of range. **Controls shut down until

resolved.

Fault-FP1 & 2 Snsr Error 11 Yes Hard or Soft If FP1 or 2 Sensor Err

Note: *All codes >11 use long flash for tens digit and short flash for the ones digit. 20, 30, 40, 50 etc. are skipped! Alert' is a noncritical sensor or function that has failed. Normal operation of the heat pump is maintained but service is desired at some point.

30



Status LED (LED3, Green)

Description of Operation Fault LED, Green

Normal Mode ON

Control is Non-functional OFF

Test Mode Slow Flash

Lockout Active Fast Flash

Dehumidification Mode Flash Code 2

Load Shed Flash Code 5

Emergency Shutdown Flash Code 6

On Peak Mode Flash Code 7

(Future Use) Flash Code 8

(Future Use) Flach Code 9

Configuration LED (LED2, Yellow)

Description of Operation Configuration LED, Yellow

No Software Overwritten ECM Setting

DIP Switch Overwritten Slow Flash

ECM Configuration Mode Fast Flash

Reset Configuration Mode OFF

Aurora Base or Advanced Control Configuration and Status Codes

9. Alarm Relay – The Alarm relay (ALM) is factory

connected to 24 VAC via jumper JW2. By cutting JW2,

ABC ALM becomes a dry contact connected to ABC

ALG. The Relay is field switchable between Factory

setting as an Alarm output or available for other uses.

10. Accessory Relay1 – A configurable, accessory relay

on the ABC is provided that can be cycled with the

compressor, blower, or the Dehumidifier (DH) input.

A third (factory) setting cycles the relay with the

compressor but delays the compressor and blower

output for 90 sec. Source pump or slow opening

solenoid valves in well systems or variable speed

primary pumping systems would be a prime use of

this feature.

Access Relay Operation SW2-4 SW2-5

Cycle with Blower ON ON

Cycle with Compressor OFF OFF

Water Valve Slow Opening ON OFF

Cycle with Comm. T-stat Hum Cmd OFF ON

11. Electric Heat EH1 – A digital 24VDC output is provided

for electric heat powering. UPC’s Default programming

has EH1 set for AUX/ELEC Heat operation and will be

controlled using the UPC’s internal P.I.D. logic. However

it can be changed by the BAS to be network controlled.

12. Electric Heat EH2 – A digital VDC output is provided

for field options converted from the original EH2

output. Default UPC program has the EH2 output set

for Network Control but can be changed by the BAS

to be controlled by the UPC’s internal P.I.D. logic.

31



1. Accessory Relay2 – A second, configurable, accessory

relay on the AXB is provided that can be cycled with

the compressor 1 or 2 , blower, or the Dehumidifier (DH)

input. This is to complement the Accessory 1 Relay on

the ABC board.

2. Analog Out – A standard 0-10VDC analog output is

provided. This output can be used to drive modulat-

ing dampers etc.

Position DIP 4 DIP 5 Description

1 ON ON Cycles with Fan or ECM (or G)

2 OFF ONCycles with CC1 first stage of compressor

or compressor spd 1-12

3 ON OFFCycles with CC2 second stage of

compressor or compressor spd 7-12

4 OFF OFF Cycles with DH input from ABC board

Aurora Advanced Control Configuration and Options

3. Variable Speed Pump or Modulating Water Valve (If applicable) - This input and output are provided

to drive and monitor a variable speed pump. The VS

pump output is a PWM signal to drive the variable

speed pump. The minimum and maximum level are set

using the AID Tool. 75% and 100% are the default set-

tings respectively. The VS data input allows a separate

PWM signal to return from the pump giving fault and

performance information. Fault received from the vari-

able speed pump will be displayed as E16. Modulat-ing Water Valve - This Variable speed PWM output is

provided to optionally drive a modulating water valve.

Through advanced design a 0-10VDC valve can be

driven directly from the VS pump output. The mini-

mum and maximum level are set in the same way as

the VS pump using the AID Tool. 75% and 100% are

the default settings respectively.

4. Loop Pump Linking (If applicable) - This input and

output are provided so that two units can be linked

together with a common flow center. When either unit

has a call for loop pump, both unit’s loop pump relays

and variable speed pumps are energized. The flow

center then can simply be wired to either unit. The

output from one unit should be routed to the input of

the other. If daisy chained up to 16 heat pumps can be

wired and linked together in this fashion.

32


1. Energy Monitoring (Standard) - Energy Monitoring

includes two current transducers (blower and electric

heat). The BACview Tool provides configuration

detail for the type of blower motor and a line voltage

calibration procedure to improve the accuracy. This

real time power usage information can be displayed on

the AID Tool and is available thru network points when

using BACnet or N2 Open.

• Compressor Current

• Fan Current

• Aux Heat Current

• Pump Selection

• Voltage

• Compressor Watts

• Fan Watts

• Aux Heat Watts

• Pump Watts (VS Only)

2. Refrigerant Monitoring - The optional Refrigerant

Monitoring Kit includes two pressure transducers, and

three temperature sensors, heating liquid line, suction

temperature and existing cooling liquid line (FP1).

These sensors allow the measurement of discharge

and suction pressures, suction and liquid line

temperatures as well as superheat and subcooling.

This information can be displayed on the BACview

Tool, or the network when using BACnet and N2.

• Htg Liquid Line

• Clg Liquid Line

• Discharge pressure

• Suction Pressure

• Discharge Saturated Temp

• Suction Saturated Temperature

• Superheat

• SubCooling

3. Performance Monitoring (Requires flow meter) - Performance Monitoring includes: three temperature

sensors, entering and leaving water, leaving air

temperature and a water flow rate sensor. With this

kit, heat of extraction and rejection will be calculated.

This requires configuration using the BACview Tool for

selection of water or antifreeze.

• Leaving Air Temperature (supply)

• Alt Leaving Air Temperature (Supply)

• Entering Water Temperature

• Leaving Water Temperature

• Water Flow Meter

• Entering Air Temperature (from zone sensor)

• Brine Selection (water/antifreeze)

• Heat of Extraction/Rejection

Aurora Advanced Control Optional Sensor Kits


33


ZS Series RNet Sensor Overview

The ZS Series line of intelligent zone sensors provides the

function and flexibility you need to manage the conditions

important to the comfort and productivity of the zone

occupants. The ZS sensors are available in a variety of

zone sensing combinations to address your application

needs. These combinations include temperature, relative

humidity, and indoor air quality (carbon dioxide or VOCs

(Volatile Organic Compounds)). They are built to be

flexible allowing for easy customization of what the user/

technician sees. Designed to work with the Aurora UPC

controllers the ZS sensor line includes the ZS Base, ZS

Plus, ZS Pro and ZS Pro-F.

The UPC uses a proprietary communication called Rnet

to receive the space temperature from the zone sensor.

This is done using (2) 18 AWG twisted pair unshielded

cables for a total of 4 wires connected to the Rnet port.

The sensor gets its power from the UPC controller and

connecting multiple sensors to one UPC will allow for space

temperature averaging. The UPC can support one ZS Pro

or ZS Pro F with up to four ZS standard sensors wired to

the Rnet port on the UPC for a total of 5 zone sensors.

The sensors use a precise 10k ohm thermistor with less

than 0.18°F drift over a ten year span, this allows for less

maintenance or re-calibration after installation. The sensors

also have a hidden communication port for connecting

a BACview or local laptop that provides access to the

equipment for commissioning and maintenance. The table

below shows the features of each of the four sensors that

are currently available.

ZS Base

ZS Plus ZS Pro

ZS Pro-F

Features ZS Base ZS Plus ZS Pro ZS Pro-F

Temp, CO2, Humidity, and VOC Options √ √ √ √

Neutral Color √ √ √ √

Addressable/supports daisy chaining √ √ √ √

Hidden communication port √ √ √ √

Mounts on a standard 2” by 4” electrical box √ √ √ √

Occupancy Status indicator LED √ √ √

Push button occupancy override √ √ √

Setpoint adjust √ √ √

Large, easy to read LCD √ √

Alarm indicator √ √

°F to °C conversion button √

Options Part Number Part Number Part Number Part Number

Temperature Only ZSU ZSUPL ZSUP ZSUPF

Temp with CO2 ZSU-C ZSUPL-C ZSUP-C ZSUPF-C

Temp with Humidity ZSU-H ZSUPL-H ZSUP-H ZSUPF-H

Temp with Humidity, CO2 ZSU-HC ZSUPL-HC ZSUP-HC ZSUPF-HC

Temp, Humidity, VOC ZSU-HV ZSUPL-HV ZSUP-HV ZSUPF-HV

Temp with VOC ZSU-V ZSUPL-V ZSUP-V ZSUPF-V


34


RNet Sensor Physical and Electrical Data

Sensing Element Range Accuracy

Temperature (on non-Humidity models) -4° to 122° F (-20° C to 50° C) ±0.35° F (0.2° C)

Temperature (on Humidity models) 50° F to 104° F (10° C to 40° C) ±0.5° F (0.3° C)

Humidity 10% to 90% ±1.8% typical

CO2 400 to 1250 PPM

1250 to 2000 PPM

±30PPM or +/-3% of reading (greater of two)

±5% of reading plus 30 PPM

VOC 0 to 2,000 PPM ±100 PPM

Power Requirements Sensor Type Power Required

Temperature Only All Models 12 Vdc @ 8 mA

Temperature with Humidity All Models 12 Vdc @ 15 mA (idle) to 190 mA

(CO2 measurement cycle)

Temp with VOC, or Temp/VOC/Humidity All Models 12 Vdc @ 60 mA

Temp with CO2 , or Temp/ CO2/Humidity All Models12 Vdc @ 15 mA (idle) to 190 mA

(CO2 measurement cycle)

Power Supply A controller supplies the Rnet sensor network with 12 Vdc @ 210 mA. Additional

power may be required for your application. See sensor ZS Installation Guide

Communication 115 kbps Rnet connection between sensor(s) and controller

15 sensors max per Rnet network; 5 sensors max per control program

Local Access Port For connecting a laptop computer to the local equipment for maintenance and commissioning

Environmental Operating Range 32° to 122° F (0° - 50° C), 10% to 90% relative humidity, non-condensing

Mounting Dimensions Standard 4”x 2” electrical box using provided 6/32” x 1/2” mounting screws


35


The Closed Loop Heat Pump Concept

The basic principle of a water source heat pump is the

transfer of heat into water from the space during cooling, or

the transfer of heat from water into the space during heating.

Extremely high levels of energy efficiency are achieved as

electricity is used only to move heat, not to produce it. Using

a typical WaterFurnace Versatec Variable Speed Series, one

unit of electricity will move four to five units of heat.

When multiple water source heat pumps are combined

on a common circulating loop, the ultimate in energy

efficiency is created: The WaterFurnace units on cooling

mode are adding heat to the loop which the units in

heating mode can absorb, thus removing heat from the

area where cooling is needed, recovering and redistributing

that heat for possible utilization elsewhere in the system. In

modern commercial structures, this characteristic of heat

recovery from core area heat generated by lighting, office

equipment, computers, solar radiation, people or other

sources, is an important factor in the high efficiency and

low operating costs of WaterFurnace closed source heat

pump systems.

In the event that a building's net heating and cooling

requirements create loop temperature extremes, Versatec

Variable Speed Series units have the extended range

capacity and versatility to maintain a comfortable

environment for all building areas. Excess heat can be

stored for later utilization or be added or removed in

one of three ways; by ground-source heat exchanger

loops: plate heat exchangers connected to other water

sources, or conventional cooler/boiler configurations.

Your WaterFurnace representative has the expertise and

computer software to assist in determining optimum

system type for specific applications.

The Closed Loop Advantage

A properly applied water source heat pump system offers

many advantages over other systems. First costs are

low because units can be added to the loop on an “as

needed basis”- perfect for speculative buildings. Installed

costs are low since units are self-contained and can be

located adjacent to the occupied space, requiring minimal

ductwork. Maintenance can be done on individual units

without system shut-down. Conditions remain comfortable

since each unit operates separately, allowing cooling in

one area and heating in another. Tenant spaces can be

finished and added as needed. Power billing to tenants

is also convenient since each unit can be individually

metered: each pays for what each uses. Nighttime and/or

weekend uses of certain areas are possible without heating

or cooling the entire facility. A decentralized system also

means if one unit should fault, the rest of the system will

continue to operate normally, as well as eliminating air

cross-contamination problems and expensive high pressure

duct systems requiring an inefficient electric resistance

reheat mode.

The Versatec Variable Speed Approach

There are a number of proven choices in the type of

Versatec Variable Speed Series system which would be

best for any given application. Most often considered are:

• Closed Loop/Ground-Source Systems utilize the stable

temperatures of the earth to maintain proper water source

temperatures (via vertical or horizontal closed loop heat

exchangers) for Versatec Variable Speed Series extended

range heat pump system. Sizes range from a single

unit through many hundreds of units. When net cooling

requirements cause closed loop water temperatures to

rise, heat is dissipated into the cooler earth through buried

high strength plastic pipe “heat exchangers.” Conversely

if net space heating demands cause loop heat absorption

beyond that heat recovered from building core areas, the

loop temperature will fall causing heat to be extracted from

Application Notes

Supply Water

Return Water

Pumps

Versatec VSUnit

Versatec VSUnit

Versatec VSUnit

Versatec VSUnit

Versatec VSUnit

Versatec VSUnit

Heater/Rejector

Vertical - Closed Loop/Ground Source

36


Application Notes cont.Plate Heat Exchanger - Closed Loop/Ground Waterthe earth. Due to the extended loop temperatures, AHRI/

ISO 13256-1 Ground Loop Heat Pumps are required for this

application. Because auxiliary equipment such as a fossil fuel

boiler and cooling tower are not required to maintain the

loop temperature, operating and maintenance costs are very

low.

Ground-source systems are most applicable in residential and

light commercial buildings where both heating and cooling

are desired, and on larger envelope dominated structures

where core heat recovery will not meet overall heating loads.

Both vertical and horizontally installed closed-loops can be

used. The land space required for the “heat exchangers” is

100-250 sq. ft./ton on vertical (drilled) installations and 750-

1500 sq. ft./ton for horizontal (trenched) installations. Closed

loop heat exchangers can be located under parking areas or

even under the building itself.

On large multi-unit systems, sizing the closed loop heat

exchanger to meet only the net heating loads and assisting

cooling loads with a closed circuit cooling tower may be the

most cost effective choice.

• Closed Loop/Ground-Source Surface Water Systems also utilize the stable temperatures of Surface Water to

maintain proper water source temperatures for Versatec

Variable Speed Series extended range heat pump systems.

These systems have all of the advantages of horizontal and

vertical closed loop systems. Due to the extended loop

temperatures, AHRI/ISO 13256-1 Ground Water or Ground

Loop Heat Pumps are required for this application.

In cooling dominated structures, the ground-source surface

water systems can be very cost effective especially where

local building codes require water retention ponds for short

term storage of surface run-off. Sizing requirements for the

surface water is a minimum of 500 sq. ft./ton of surface

area at a minimum depth of 8 feet. WaterFurnace should be

contacted when designs for heating dominated structures

are required.

Surface Water - Closed Loop/Ground Source

• Closed Loop/Ground Water Plate Heat ExchangerSystems utilize lake, ocean, well water or other water

sources to maintain closed loop water temperatures in

multi-unit Versatec Variable Speed systems. A plate frame

heal exchanger isolates the units from any contaminating

effects of the water source, and allows periodic cleaning of

the heat exchanger during off peak hours.

Operation and benefits are similar to those for ground-

source systems. Due to the extended loop temperatures,

AHRI/ISO 13256-1 Ground Loop Heat Pumps are required

for this application. Closed loop plate heat exchanger

systems are applicable in commercial, marine, or industrial

structures where the many benefits of a water source heat

pump system are desired, regardless of whether the load is

heating or cooling dominated.

37


Application Notes cont.• Closed Loop /Cooler-Boiler Systems utilize a closed heat

recovering loop with multiple water source heat pumps

in the more conventional manner. Typically a boiler is

employed to maintain closed loop temperatures above

60°F and a cooling tower to maintain loop temperatures

below 90°F. These systems are applicable in medium to

large buildings regardless of whether the load is heating or

cooling dominated. Due to the moderate loop temperatures,

AHRI/ISO 13256-1 Water Loop Heat Pumps are required for

this application.

Cooler/Boiler - Closed Loop

38


1. Strainers

A. All brazed-plate heat exchangers shall have a strainer within 8 ft of the water/brine inlet. It is highly recommended to use a minimum of 40 mesh in order to provide maximum fi ltration. In any case, the strainers should never have a mesh size less than 30.

B. Failure to install proper stainers and perform regular service can result in serious damage to the unit, and cause degraded performance, reduced operating life and failed compressors. Improper installation of the unit (which includes not having proper strainers to protect the heat exchangers) can also result in voiding the warranty.

C. Strainers should be selected on the basis of acceptable pressure drop, and not on pipe diameter. The strainers selected should have a pressure drop at the nominal fl ow rate of the units; low enough to be within the pumping capacity of the pump being used.

Water Quality2. Water Quality

General: Heat pump may be successfully applied in a wide range of commercial and industrial applications. It is the responsibility of the system designer and installing contractor to ensure that acceptable water quality is present and that all applicable codes have been met in these installations.

Water Treatment: Do not use untreated or improperly treated water. Equipment damage may occur. The use of improperly treated or untreated water in this equipment may result in scaling, erosion, corrosion, algae or slime. The services of a qualifi ed water treatment specialist should be engaged to determine what treatment, if any, is required. The product warranty specifi cally excludes liability for corrosion, erosion or deterioration of equipment.

The heat exchangers in the units are 316 stainless steel plates with copper brazing. The water piping in the heat exchanger is steel. There may be other materials in the building’s piping system that the designer may need to take into consideration when deciding the parameters of the water quality.

If an antifreeze or water treatment solution is to be used, the designer should confi rm it does not have a detrimental effect on the materials in the system.

Contaminated Water: In applications where the water quality cannot be held to prescribed limits, the use of a secondary or intermediate heat exchanger is recommended to separate the unit from the contaminated water.

The following table outlines the water quality guidelines for unit heat exchangers. If these conditions are exceeded, a secondary heat exchanger is required. Failure to supply a secondary heat exchanger where needed will result in a warranty exclusion for primary heat exchanger corrosion or failure.

WARNING: Must have intermediate heat exchanger when used in pool applications.

39


Water Quality cont.

Surface Condensation Chart

Room Ambient ConditionSurface Temperature

50°F 35°F 0°F

Normal (Max 85°F, 70% RH) 1/2" 3/4" 1"

Mild (Max 80°F, 50% RH) 1/8" 1/4" 1/2"

Severe (Max 90°F, 80% RH) 3/4" 1" 2"

Material Copper 90/10 Cupronickel 316 Stainless SteelpH Acidity/Alkalinity 7 - 9 7 - 9 7 - 9

ScalingCalcium and

Magnesium Carbonate(Total Hardness)

less than 350 ppm(Total Hardness)

less than 350 ppm(Total Hardness)

less than 350 ppm

Corrosion

Hydrogen SulfideLess than 0.5 ppm (rotten egg

smell appears at 0.5 ppm)10 - 50 ppm Less than 1 ppm

Sulfates Less than 125 ppm Less than 125 ppm Less than 200 ppm

Chlorine Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm

Chlorides Less than 20 ppm Less than 125 ppm Less than 300 ppm

Carbon Dioxide Less than 50 ppm 10 - 50 ppm 10 - 50 ppm

Ammonia Less than 2 ppm Less than 2 ppm Less than 20 ppm

Ammonia Chloride Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm

Ammonia Nitrate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm

Ammonia Hydroxide Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm

Ammonia Sulfate Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm

Total Dissolved Solids (TDS) Less than 1000 ppm 1000 - 1500 ppm 1000 - 1500 ppm

LSI Index +0.5 to -0.5 +0.5 to -0.5 +0.5 to -0.5

Iron Fouling(Biological Growth)

Iron, FE2+ (Ferrous)Bacterial Iron Potential

< 0.2 ppm < 0.2 ppm < 0.2 ppm

Iron OxideLess than 1 ppm, above this level deposition will occur

Less than 1 ppm, above this level deposition will occur

Less than 1 ppm, above this level deposition will occur

ErosionSuspended Solids

Less than 10 ppm and filtered for max. of 600 micron size



Threshold Velocity(Fresh Water)

< 6 ft/sec < 6 ft/sec < 6 ft/sec

NOTES: Grains = ppm divided by 17 mg/L is equivalent to ppm

2/22/12

Water Quality Guidelines

3. Insulation

All models are built with factory installed insulation on any surface that may be subject to temperatures below the room dew point.

4. Brine Applications

Applications where the leaving fl uid temperature goes below 40°F a suitable brine solution must be used. Failure to do so can cause immediate damage to the system. The brine must be approved for use with heat exchangers. Automotive antifreeze solutions are not suitable for use in brazed plate heat exchangers. The freeze detection must be adjusted appropriately for brine applications. The brine solution concentration should be at least 15°F below the lowest leaving fl uid temperature.

40


Typical Unit InstallationUnit Location

Locate the unit in an indoor area that allows for easy

removal of the filter and access panels. Location should

have enough space for service personnel to perform

maintenance or repair. Provide sufficient room to make

water, electrical and duct connection(s). If the unit is

located in a confined space, such as a closet, provisions

must be made for return air to freely enter the space by

means of a louvered door, etc. Any access panel screws that

would be difficult to remove after the unit is installed should

be removed prior to setting the unit. On horizontal units,

allow adequate room below the unit for a condensate drain

trap and do not locate the unit above supply piping. Care

should be taken when units are located in unconditioned

spaces to prevent damage from frozen water lines and

excessive heat that could damage electrical components.

Water Piping

Piping is usually design as ‘reverse return’ to equalize flow

paths through each unit. A short flexible pressure rated

hose is used to make connection to the fixed building

piping system. This hose is typically stainless steel braid

and includes a swivel fitting on one end for easy removal

and is flexible to help isolate the unit for quieter operation.

Isolation valves for servicing, y-strainers for filtering and

memory-stop flow valve or a balancing valve can be

provided for consistent water flow through the unit.

All unit source water connections are fittings that accept

a male pipe thread (MPT). Insert the connectors by hand,

then tighten the fitting with a wrench to provide a leakproof

joint. The open and closed loop piping system should

include pressure/temperature ports for serviceability. The

proper water flow must be provided to each unit whenever

the unit operates. To assure proper flow, use pressure/

temperature ports to determine the flow rate. These

ports should be located at the supply and return water

connections on the unit. The proper flow rate cannot be

accurately set without measuring the water pressure drop

through the refrigerant-to-water heat exchanger. Never use

flexible hoses smaller than the inside diameter of the water

connection at the unit. Limit hose length to 10 feet per

connection. Check carefully for water leaks.

Installation Notes

90 deg elbow with vanes on supply

Vibration absorbing pad

Sealed low velocity ductwork

Flexible water and electrical connections

Acoustic lining to elbow

Canvas connector

41


Installing Horizontal Units

Remove and discard the compressor hold down shipping

bolt located at the front of the compressor mounting

bracket prior to setting the unit in place. Horizontal units

are available with side or end discharge.

NOTE: Left (Right) Return Side Discharge can be converted

to Left (Right) Return End Discharge or vice versa, without

additional custom sheet metal parts. Horizontal units are

normally suspended from a ceiling by six 1/2 in. diameter

threaded rods. The rods are usually attached to the unit by

hanger bracket kits furnished with each unit.

Installation Notes cont.

Building water loop

Optional insultated Return Air

Acoustic lining to elbow

Insulated first 4" of supply plenum & provide one 90"

elbow

Strut Channels

Flexible duct collar

Threaded rod

Line Voltage

Hose Kit

Disconnect

Lay out and install the threaded rods and 1 5/8" strut

channel as shown in the Horizontal Dimensional Data.

The unit should be pitched approximately 1/4 in. toward

the drain in both directions to facilitate the removal of

condensate.

Some applications require the installation of horizontal units

on an attic floor. In this case, the unit should be set in a full

size secondary drain pan on top of a vibration absorbing

pad. The secondary drain pan prevents possible condensate

overflow or water leakage damage to the ceiling. The

secondary drain pan is usually placed on a plywood base

isolated from the ceiling joists by additional layers of

vibration absorbing material.

CAUTION: Do not use rods smaller than 1/2 in. diameter since they may not be strong enough to support the unit. The rods must be securely anchored to the ceiling.

42


Installation Notes cont.

Acoustical Considerations and Equipment Sound Performance

Sound Performance

The Versatec Variable Speed is third party sound rated in

accordance with ARI 260. Please consult WaterFurnace

Sound Performance Data Catalog for details on the AHRI

standard and sound performance data.

Recommendations for Noise Reduction

Horizontal Unit Location• Specify equipment with quietest sound power ratings

• Do not locate units above areas with a required NC 40

or less

• Space WSHP at least 10 ft (3m) apart to avoid noise

summing of multiple units in a space.

• Maximize the height of the unit above the

ceiling (horizontal).

• Suspend unit with isolation grommets that are

appropriately rated to reduce vibrations (horizontal).

Vertical Unit Location• Specify equipment with quietest sound power ratings

• Space WSHP at least 10 ft (3m) apart to avoid noise

summing of multiple units in a space.

• Acoustic ceiling coatings can greatly reduce noise levels

in mechanical rooms.

• Mount unit on a sound absorbing pad, extruded

polystyrene, rubber or cork pad.

Ductwork• Ensure return air grilles will not allow line of site noise to

transfer to adjacent space. Use a sound barrier or some

other material to isolate the grille from the unit. A supply

grille, boot and short piece of flex duct pointed away

from the unit can greatly attenuate equipment noise.

• Use a canvas isolation duct connector at the supply and

return duct connection of the unit.

• Internally line the discharge and return duct within the

first 4-8 feet of unit with acoustic insulation. Install an

internally lined ‘L’ shaped return duct elbow at return

grille. Face the elbow away from adjacent units.

• Always install at least one 90° elbow in the discharge duct

to eliminate line of sight noise transmission of the blower.

• Use turning vanes at all elbows and tees to

reduce turbulence.

• Limit supply duct velocities to less than 1,000 fpm

• Design and install ductwork as stiff as possible

• Allow 3 duct diameters both up and down stream of the

unit before any fittings or transitions are installed.

• Use duct sealant on all duct joints.

• Install a short (2-4’) of flex duct on all branch ducts just

prior to discharge boot or diffuser to reduce vibration

and duct sound prior to delivery in the room.

• Locate the branch duct balancing damper as far away

from the diffuser as possible.

• In ceiling plenum systems, install an internally lined ‘L’

shaped return duct elbow at unit. Face the elbow away

from adjacent units (horizontal).

poolysttyrenene, rubber oror ccorork pap d.

Branch damper

upstream

Turning vanes at elbows and Tees

Acoustic lining to elbow Locate units over

hallways where possible

Insulated Return (optional)

Canvas connector

Flex duct at diffuser

2-4 ft. [0.6-1.2 m]

Supply grille with 2-3 ft [0.6-0.9 m] of flex loft

open for return air

Flexible water and electrical connections

Locate return grille 6 ft [1.8 m]

from unit

90 deg elbow on supply

Sealed low velocity

ductwork

43


Dimensional Data

VENTED ACCESS

PANEL

SIDE DISCHARGEFIELD REMOVABLE BRACKETS ANDDUCT FLANGES

END DISCHARGEFIELD REMOVABLE BRACKETS ANDDUCT FLANGES

"B"

"K"

"A"

VENTED ACCESS PANEL

"K"

"J"

42.00

1 5/8" UNISTRUT42" CUT LENGTH

3 REQUIREDNOT SUPPLIED

BY WFI"C"

"D""E"

40.00

1.0DUCT FLANGE

AIR COIL

BLOWERACCESS PANEL

"U"

"V"

"T""R" "R"

"P"

1.8 (3)CONTROL BOXACCESS DOOR

"H"

"H"

1.71.7

"P"

1 2 5

A B C D E F Loop G H J K L M N P R T U V

Width Depth Height In OutCond-

ensate

Water

FPT

Filter Rack

Width

From

Edge

Supply

Height

Supply

Width

From

Edge

Return

Depth

Return

Height

From

EdgeHeight

From

Edge

Unistrut/

Unistrut

Unistrut/

Unistrut

120 in. 34.0 89.0 29.9 8.1 15.1 3.2 1 1/4" 3.1 5.0 24.0 24.0 4.3 47.6 23.5 3.9 25.9 1.7 24.6 61.0

cm. 86.4 226.1 75.9 20.6 38.4 8.1 31.8 mm 7.9 12.7 61.0 61.0 10.9 120.9 59.7 9.9 65.8 4.3 62.5 154.9

180 in. 34.0 110.0 29.9 8.1 15.1 3.2 1 1/4" 3.1 5.0 24.0 24.0 4.3 65.6 23.5 3.9 25.9 1.7 35.1 71.5

cm. 86.4 279.4 75.9 20.6 38.4 8.1 31.8 mm 7.9 12.7 61.0 61.0 10.9 166.6 59.7 9.8 65.8 4.3 89.2 181.6

Unistrut Hanging

using delux e filter rack Horizontal

Models

Overall Cabinet Water Connections Discharge Connection Return Connection* Electrical

Connections

*Dimensions for return connnections are for the deluxe filter rack that is suitable for ducted return applications

"N"

"M"

2.1

"L"

"J"

"F"1.4

DRAIN CONNECTION

"G"

44


Dimensional Data cont.

"A"

"M"

"N"

VENTED ACCESS PANELBOTH SIDES

"M"

"N"

"B"

"G"

"K"

"J"

TOP DISCHARGEFIELD REMOVABLE

BLOWER PANELINSERT

SIDE DISCHARGEFIELD REMOVABLE BLOWER PANELINSERT

"D""E"

1 2 3

A B C D E F Loop G H J K L M N P R


ensate

Water

FPT

Filter

Rack

From

Edge

Return

Depth

Return

Height

From

Edge

Supply

Width

Supply

Height

From

EdgeHeight

120 in. 34.0 36.3 72.5 8.1 15.1 22.1 1 1/4" 3.1 3.2 29.9 37.8 4.1 28.0 16.0 3.9 27.4

cm. 86.4 92.2 184.2 20.6 38.4 56.1 31.8 mm 7.9 8.1 75.9 96.0 10.4 71.1 40.6 9.9 69.6

180 in. 34.0 46.3 72.5 8.1 15.1 22.1 1 1/4" 3.1 3.2 39.9 37.8 4.1 38.0 16.0 3.9 27.4

cm. 86.4 117.5 184.2 20.6 38.4 56.1 31.8 mm 7.9 8.1 101.3 96.0 10.4 96.5 40.6 9.9 69.6

Vertical

Models

Overall Cabinet Water Connections Discharge ConnectionReturn Connection*

using delux e filter rack

Electrical

Connections

"C"

1.002.1

"H"

"R"BOTHSIDES

"P"BOTHSIDES

1.8 (4)

DRAINCONNECTION

"F"

2.3 "L"

1.0

"L"

BLOWERACCESSPANEL

BLOWERACCESSPANEL

CONTROL BOXACCESS DOOR


45



"P"BOTHSIDES

"R"

VENTED ACCESSPANEL BOTH

SIDES

DRAINCONNECTION

"F" "E"

"D"

1.8 (3)

CONTROL BOXACCESS DOOR

"C"

"K"

5.1

"G" "A"

"F"

2.1

"H"

"J"

"N"

"L"

"B" "M"

1 2 3

A B C D E F Loop G H J K L M N P R


ensate

Water

FPT

Filter

Rack

From

Edge

Return

Depth

Return

Height

From

Edge

Supply

Width

Supply

Height

From

EdgeHeight

120 in. 34.0 36.3 72.5 23.4 16.4 4.5 1 1/4" 3.1 3.2 29.9 37.8 4.1 28.0 15.0 3.9 4.0

cm. 86.4 92.2 184.2 59.4 41.7 11.4 31.8 mm 7.9 8.1 75.9 96.0 10.4 71.1 38.1 9.9 10.2

180 in. 34.0 46.3 72.5 23.4 16.4 4.5 1 1/4" 3.1 3.2 39.9 37.8 4.1 38.0 15.0 3.9 4.0

cm. 86.4 117.5 184.2 59.4 41.7 11.4 31.8 mm 7.9 8.1 101.3 96.0 10.4 96.5 38.1 9.9 10.2

Vertical

Bottom

Flow

Models

Overall Cabinet Water Connections Discharge OpeningReturn Connection*

using delux e filter rack

Electrical

Connections

AIR COIL

BLOWERACCESS PANEL


46



"C" "C"

"F" "D"

"E"

"A"

"B"

"G" "F" "G"

"E"

"A"

"B"

"D"

A B C D E F G

Width Depth HeightFrom

Edge

Supply

Width

Supply

Height

From

Edge

120 in. 34.0 36.3 4.0 4.1 28.0 15.0 3.0

cm. 86.4 92.2 10.2 10.4 71.1 38.1 7.6

180 in. 34.0 46.3 4.0 4.1 38.0 15.0 3.0

cm. 86.4 117.5 10.2 10.4 96.5 38.1 7.6

Vertical

Bottom

Flow

Models

Overall Discharge Opening

Weight Distribution Table

ModelVertical

Shipping Weight

HorizontalShippingWeight

Horizontal Weight Distribution

Front Back

D E F G

120792 807 193 203 188 194

(359) (366) (88) (92) (85) (88)

180926 1308 331 330 309 303

(420) (593) (150) (150) (140) (137)

Weights are listed in lbs. (kg).Distributed weights for left return units

7/25/18

47



"A"

"B"

"J"

"L"

3.23.1

"G"

"M"

"E" "F"

"H"

"C"

A B C D E F G H J Loop K L M


BTM

Length

LR

Length

RRWidth

From

EdgeDepth

Water

FPTFrom Top

Return

Depth

Return

Height

120 in. 7.2 36.0 42.0 14.9 5.6 9.0 2.6 1.5 4.1 1 1/4" 2.1 29.9 37.8

cm. 18.3 91.4 106.7 37.8 14.2 22.9 6.6 3.8 10.4 31.8 mm 5.3 75.9 96.0

180 in. 7.2 46.0 42.0 12.8 5.6 9.0 2.6 1.5 4.1 1 1/4" 2.1 39.9 37.8

cm. 18.3 116.8 106.7 32.5 14.2 22.9 6.6 3.8 10.4 31.8 mm 5.3 101.3 96.0

Vertical

Economizers-

Top Flow

Overall Cabinet Water Lines Filter Rack

"K"

"D"

48



"A"3.2

"K"

"O"

"G"

"L"

"C"

"F" "E"

"B"

"J"

"H"

"N"

3.2

"M"

A B C D E F G H J Loop K L M N O


BTM

Length

LR

Length

RRWidth

From

EdgeDepth

Water

FPT

From

Edge

From

Bottom

From

Bottom

Return

Depth

Return

Height

120 in. 7.1 36.0 42.0 52.8 5.6 9.0 2.6 1.6 4.1 1 1/4" 2.5 4.6 5.1 29.9 37.8

cm. 18.0 91.4 106.7 134.1 14.2 22.9 6.6 4.1 10.4 31.8 mm 6.4 11.7 13.0 75.9 96.0

180 in. 7.2 46.1 42.0 54.8 5.6 9.0 2.6 1.6 4.1 1 1/4" 2.5 4.6 5.1 39.9 37.8

cm. 18.3 117.1 106.7 139.2 14.2 22.9 6.6 4.1 10.4 31.8 mm 6.4 11.7 13.0 101.3 96.0

Drain PanVertical

Economizers-

Bottom Flow

Filter RackOverall Cabinet Water Lines

"D"

49



42.00

48.0050.00

40.00

"U"

"V"

"M"

"L"

"H"

"A"

"B"

"E"

"T"

"D"

"F" "G"

"C"

A B C D E F G H J Loop K L M T U V

Width Depth Height Depth WidthFrom

Edge

From

TopLength

Drain

Pan

Water

FPT

From

Edge

Return

Depth

Return

Height

From

Edge

Comp.

Sect.

A.H.

Sect.

120 in. 7.1 56.5 27.4 14.3 1.7 1.6 4.8 18.2 5.0 1 1/4" 4.7 47.6 23.5 1.7 24.5 61.1

cm. 18.0 143.5 69.6 36.3 4.3 4.1 12.2 46.2 12.7 31.8 mm 11.9 120.9 59.7 4.3 62.2 155.2

180 in. 7.1 72.5 27.4 14.3 1.7 1.6 4.8 18.2 5.0 1 1/4" 3.3 65.6 23.5 1.7 35.1 71.5

cm. 18.0 184.2 69.6 36.3 4.3 4.1 12.2 46.2 12.7 31.8 mm 8.4 166.6 59.7 4.3 89.2 181.6

Horizontal

Economizers

Overall Cabinet Water Lines Filter Rack Base Railing

"K"

2.0

3.1 "J"

50


Physical Data

ModelVariable Speed

120 180

Compressor Scroll (1 each)

Factory Charge R410A, oz [kg] (each circuit) 162 [4.60] 198 [5.62]

Blower Motor & Blower

Blower Motor - Quantity 1 1

Blower Motor Type/Speeds EC Backward Inclined Plenum Fan/12

Blower Motor 230V - hp [kW] 4.8 [3.6] 7.2 [5.4]

Blower Motor 460V - hp [kW] 4.8 [3.6] 7.2 [5.4]

Blower Wheel Size (Dia), in. [mm] 20” [500] 20” [500]

BPHX and Water Piping

Water Connections Size - FPT - in [mm] 1-1/4” [31.8] 1-1/4” [31.8]

Heat Exchanger & Piping Water Volume - gal [l] 2.33 [8.85] 2.63 [9.98]

Vertical Air Coil & Filters

Air Coil Dimensions (H x W), in. [mm]40 x 30

[1016 x 762]40 x 40

[1016 x 1016]

Air Coil Total Face Area, ft2 [m2] 8.34 [0.77] 11.11 [1.03]

Air Coil Tube Size, in [mm] 3/8 [9.5] 3/8 [9.5]

Air Coil Number of rows 4 4

Filter Standard - 2” [51mm] Pleated MERV 4 Throwaway, in [mm]40 x 32

[1016 x 813]40 x 42

[1016 x 1067]

Filter Standard - 2” [51mm] Pleated MERV 13 Throwaway, in [mm]40 x 32

[1016 x 813]40 x 42

[1016 x 1067]

Horizontal Air Coil & Filters

Air Coil Dimensions (H x W), in. [mm]26 x 48

[660 x 1219]26 x 64

[660 x 1626]

Air Coil Total Face Area, ft2 [m2] 8.67 [0.81] 11.56 [1.07]

Air Coil Tube Size, in [mm] 3/8 [9.5] 3/8 [9.5]

Air Coil Number of rows 4 4

Filter Standard - 2” [51mm] Pleated MERV 4 Throwaway, in [mm]2 - 25 x 25 [635 x 635]

2 - 25 x 25 [635 x 635]

1 - 18x25 [457 x 635]

Filter Standard - 2” [51mm] Pleated MERV 13 Throwaway, in [mm]2 - 25 x 25 [635 x 635]

2 - 25 x 25 [635 x 635]

1 - 18x25 [457 x 635]

10/29/17

ECM Motor

ModelRated

VoltageVoltage Min/Max

Compressor BlowerMotorFLA

TotalUnitFLA

MinCircAmp

MaxFuse/

HACR BreakerMCC** RLA LRA*

120208-230/60/3 187/253 56.0 35.9 60.0 11.0 46.9 55.9 90

460/60/3 414/506 30.0 19.2 35.0 8.6 27.8 32.6 50

180208-230/60/3 187/253 84.0 53.8 100.0 11.0 64.8 78.3 125

460/60/3 414/506 60.0 38.5 60.0 8.6 47.1 56.7 90

HACR circuit breaker in USA only* - Based on AC input current protection to compressor drive.

9/19/18

Electrical Data

51


Model 120

Fan Speed

Fan RPM

Airfl ow [scfm] at External Static Pressure [in. wg.]

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0

1 600 1526 1349 1166 978 786 588

2 700 1835 1711 1566 1400 1214 1008 781

3 800 2145 2030 1895 1740 1564 1368 1151 934 718 501

4 900 2454 2341 2214 2075 1923 1758 1580 1389 1198 1007 817 626

5 1000 3008 2903 2791 2670 2542 2405 2260 2107 1946 1777 1607 1438 1269 1100 930 761

6 1100 3323 3229 3129 3022 2909 2788 2662 2528 2388 2241 2087 2007 1926 1846 1766 1685 1605

7 1250 3773 3684 3594 3502 3408 3311 3210 3106 2997 2882 2762 2636 2737 2613 2490 2366 2242 2119

8 1400 4270 4180 4093 4007 3921 3835 3748 3658 3566 3471 3370 3265 3153 3034 2923 2812 2701 2590 2479

9 1500 4582 4499 4419 4342 4265 4189 4112 4033 3951 3865 3773 3674 3569 3454 3330 3206 3082 2957 2833

10 1600 4877 4801 4737 4673 4604 4528 4446 4361 4277 4198 4123 4050 3972 3875 3737 3530 3322 3114 2907 2699 2492

11 1700 5200 5121 5058 5000 4939 4872 4799 4722 4644 4567 4495 4427 4362 4294 4213 4102 3942 3781 3620 3350 3080

12 1800 5531 5462 5393 5318 5243 5152 5061 4981 4901 4823 4745 4680 4615 4538 4460 4374 4288 4045 3801 3558 3314

Fan selection is accomplished through the Aurora Controls and allows four online selections of continuous fan (G), stage 1 (Lo), stage 2 (Hi), and with electric heat (AUX).Continuous Fan (G) can be set at any airfl ow. Stage 1 (Lo) setting can be located anywhere other than BOLD highlighted points.Stage 2 (Hi) setting should be located in shaded portion. Elect heat Airfl ow (AUX) airfl ow setting should be confi gured for the minimum airfl ow needed to support the heater. Please consult heater manual.Factory settings for UV*120 are continuous fan (G) speed 1, Minimum Load Stage 1(Lo)= Speed 3, Full Load Stage 2 (Hi) = Speed 8 and with Electric Heat Operation (AUX) = Speed 11 .

11/16/17

Model 180

Fan Speed

Fan RPM

Airfl ow [cfm] at External Static Pressure [in. wg.]

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0

1 900 2454 2341 2214 2075 1923 1758 1580 1389

2 1000 2978 2881 2773 2669 2531 2407 2253 2087 1908 1679 1432

3 1100 3288 3202 3121 3012 2908 2800 2679 2521 2385 2230 2050 1839 1617 1281

4 1200 3587 3507 3433 3343 3249 3145 3037 2926 2791 2659 2490 2364 2218 2037 1825 1568

5 1300 3901 3835 3761 3664 3594 3507 3418 3319 3202 3104 2969 2864 2735 2581 2417 2230 2098 1928

6 1400 4244 4182 4120 4057 3974 3896 3809 3727 3629 3536 3455 3326 3224 3110 2983 2833 2718 2581 2440 2293

7 1550 4812 4738 4664 4587 4504 4438 4372 4291 4226 4134 4046 3962 3870 3780 3707 3579 3501 3404 3305 3204 3101

8 1700 5329 5262 5195 5139 5082 5020 4958 4895 4831 4752 4673 4601 4529 4455 4380 4294 4222 4145 4068 3990 3911

9 1800 5666 5607 5548 5481 5414 5353 5291 5221 5151 5086 5020 4953 4886 4811 4735 4671 4596 4523 4450 4375 4300

10 1900 6018 5957 5895 5833 5770 5712 5654 5589 5524 5463 5402 5340 5278 5208 5138 5047 4976 4907 4837 4766 4695

11 2000 6350 6287 6224 6165 6105 6045 5985 5923 5861 5799 5736 5672 5607 5541 5475 5414 5347 5281 5214 5148 5080

12 2160 6862 6805 6748 6698 6647 6588 6529 6477 6425 6364 6303 6249 6194 6131 6068 5987 5920 5854 5787 5721 5653

Fan selection is accomplished through the Aurora Controls and allows four online selections of continuous fan (G), stage 1 (Lo), stage 2 (Hi), and with electric heat (AUX).Continuous Fan (G) can be set at any airfl ow. Stage 1 (Lo) setting can be located anywhere other than BOLD highlighted points.Stage 2 (Hi) setting should be located in shaded portion.Elect heat Airfl ow (AUX) airfl ow setting should be confi gured for the minimum airfl ow needed to support the heater. Please consult heater manual.Factory settings for UV*180 are continuous fan (G) speed 1, Part Load Stage 1(Lo)= Speed 3, Full Load Stage 2 (Hi) = Speed 10 and with Electric Heat Operation (AUX) = Speed 11 .

11/12/17

Blower Performance Data

52


Blower Performance Data cont.

ECM Speed Info

1▶ 2 ◀ G 3 4 5 6 7 8 9 10 11 12

Option ◀▶ Enter ◙

ECM Speed Info

1 2 G▶ 3 ◀ Lo 4 5 6 7 8 9 10 11 12


ECM Speed Info

1 2 G 3 Lo 4 5▶ 6 ◀ Hi 7 8 9 10 11 12


ECM Speed Info

1 2 G 3 Lo 4 5 6 Hi 7 8 9▶10 ◀ Aux 11 12


ECM Speed Info

Blower Only Speed 3Lo Compressor 6Hi Compressor 9Aux Heat 10

Want To Change?

YesOption ◀▶

NoEnter ◙

Cooling Airfl ow Setup

--- ECM Only ---The airfl ow will be

adjusted by the chosenamount in cooling mode.

Adjustment:-15%

Want To Change?

YesOption ◀▶

NoEnter ◙

Cooling Airfl ow Setup

--- ECM Only ---The airfl ow will be

adjusted by the chosenamount in cooling mode.

Adjustment:-15%

Change ▼▲ Enter ◙

Setting Blower Speed - Variable Speed ECM The ABC board’s Yellow Confi g LED will fl ash the current ECM blower speed selections for G, low, and high continuously with a short pause in between. The speeds can also be confi rmed with the AID Tool under the Setup/ECM Setup screen. The Aux will not be fl ashed but can be viewed in the AID Tool. The ECM blower motor speeds can be fi eld adjusted with or without using an AID Tool.

Variable speed ECM Setup without an AID ToolThe blower speeds for G only, Low (Y1), and High (Y2/Aux) can be adjusted directly at the Aurora ABC board which utilizes the push button (SW1) on the ABC board. This procedure is outlined in the ECM Confi guration Mode portion of the Aurora ‘Base’ Control System section. The Aux cannot be set manually without an AID Tool.

Variable speed ECM Setup with an AID ToolA much easier method utilizes the AID Tool to change the airfl ow using the procedure below. First navigate to the Setup screen and then select ECM Setup. This screen displays the current ECM settings. It allows the technician to enter the setup screens to change the ECM settings.

Change the highlighted item using the ◄ and ► buttons and then press the ◙ button to select the item.

Selecting YES will enter ECM speed setup, while selecting NO will return to the previous screen.

ECM Speed Setup - These screens allow the technician to select the G, low, high, and auxiliary heat blower speed for the ECM blower motor. Change the highlighted item using the ▲ and ▼ buttons. Press the ◙ button to select the speed.

After the auxiliary heat speed setting is selected the AID Tool will automatically transfer back to the ECM Setup screen.

Cooling Airfl ow Setup - These screens allow the technician to select -15%, -10%, -5%, None or +5% change from the heating airfl ow. Change the adjustment percentage using the ▲ and ▼ buttons. Press the ◙ button to save the change.

53


Selection ExampleTo achieve optimal performance, proper selection of each

heat pump is essential. A building load program should be

used to determine the heating and cooling load of each

zone. A computer software selection program can then

be used to develop an accurate and complete heat pump

schedule. Software can be obtained from your local factory

representative.

While a computer software program is the easiest and most

accurate method to size and select equipment, however,

selection can still be accomplished manually using this

manual and the following selection procedure. Sizing so that

the actual sensible capacity of the equipment will satisfy the

sensible capacity of the zone is the recommended method

for best results.

Boiler/Tower Application

Typical boiler/tower application will result in entering water

temperatures of 60-90°F with 70°F for heating and 90°F for

cooling. Water to refrigerant insulation option would not be

required. Flow rates are 2.5 to 3 gpm per ton with 2.5 gpm

per ton often representing an economical design point.

Geothermal Application

Typical geothermal application can result in a wide entering

water temperature range of 30-100°F. Typically minimum

heating entering water temperatures can range from 30 to

50°F depending upon loop type and geographical location.

Cooling performance should be calculated using a maximum

loop temperature of 100°F in most loop applications. Water

fl ow is typically 2.5 to 3 gpm per ton with 3 gpm per ton

recommended with the more extreme loop temperatures. PLEASE NOTE THAT WATER COIL INSULATION OPTION SHOULD BE SELECTED WHEN ENTERING WATER TEMPERATURES ARE EXPECTED TO BE BELOW 45-50°F.

Geothermal Selection Example

Step 1: Determine the actual heating and cooling loads at

the desired dry bulb and wet bulb conditions.

Step 2: Obtain the following design parameters: Entering

water temperature, water fl ow rate in gpm, airfl ow in cfm,

water fl ow pressure drop and design wet and dry bulb

temperatures. Airfl ow, cfm, should be between 300 and

450 cfm per ton. Unit water pressure drop should be kept

as close as possible to each other to make water balancing

easier. Go to the appropriate tables and fi nd the proper

indicated water fl ow and water temperature.

Step 3: Select a unit based on total and sensible cooling

conditions. Select a unit which is closest to, but no larger

than, the actual cooling load.

Step 4: Enter tables at the design water fl ow and water

temperature. Read the total and sensible cooling capacities

(NOTE: interpolation is permissible, extrapolation is not).

Step 5: Read the heating capacity. If it exceeds the design

criteria it is acceptable. It is quite normal for water source

heat pumps to be selected on cooling capacity only since the

heating output is usually greater than the cooling capacity.

Step 6: Determine the correction factors associated with the

variable factors of dry bulb and wet bulb.

Corrected Total Cooling = tabulated total cooling x wet bulb

correction.

Corrected Sensible Cooling = tabulated sensible cooling x

wet/dry bulb correction.

Step 7: Compare the corrected capacities to the load

requirements. Normally if the capacities are within 10% of the

loads, the equipment is acceptable. It is better to undersize

than oversize, as undersizing improves humidity control,

reduces sound levels and extends the life of the equipment.

Step 8: When complete, calculate water temperature

rise and assess the selection. If the units selected are not

within 10% of the load calculations, then review what effect

changing the gpm, water temperature and/or airfl ow and air

temperature would have on the corrected capacities. If the

desired capacity cannot be achieved, select the next larger

or smaller unit and repeat the procedure. Remember, when

in doubt, undersize slightly for best performance.

Example Equipment Selection - Cooling

1. Load Determination:Assume we have determined that the appropriate cooling

load at the desired dry bulb 80oF and wet bulb 65oF

conditions is as follows:

Total Cooling ...........................................................135,000 Btu/hr

Sensible Cooling ..................................................... 87,000 Btu/hr

Entering Air temperature ......75oF Dry Bulb/ 65oF Wet Bulb

2. Design Conditions:Similarly, we have also obtained the following design

parameters:

Entering Water Temperature ................................................ 90oF

Water Flow (Based upon 10oF rise in

temperature) ......................................................................34.0 gpm

Airfl ow Required ................................. 4,200 cfm @ 0.5 in. wg.

54


Selection Example cont.

Antifreeze TypeAntifreeze% by wt

Cooling Capacity

Heating Capacity

Pressure Drop

EWT - degF [DegC] 90 [32.2] 30 [-1.1] 30 [-1.1]

Water 0 1.000 1.000 1.000

10 0.991 0.973 1.075

20 0.979 0.943 1.163

Ethylene Glycol 30 0.965 0.917 1.225

40 0.955 0.890 1.324

50 0.943 0.865 1.419

10 0.981 0.958 1.130

20 0.969 0.913 1.270

Propylene Glycol 30 0.950 0.854 1.433

40 0.937 0.813 1.614

50 0.922 0.770 1.816

10 0.991 0.927 1.242

20 0.972 0.887 1.343

Ethanol 30 0.947 0.856 1.383

40 0.930 0.815 1.523

50 0.911 0.779 1.639

10 0.986 0.957 1.127

20 0.970 0.924 1.197

Methanol 30 0.951 0.895 1.235

40 0.936 0.863 1.323

50 0.920 0.833 1.399

Warning: Gray area represents antifreeze concentrations greater than 35% by weight and should be avoided due to the extreme performance penalty they represent.

3, 4, & 5. HP Selection:After making our preliminary selection (*180) we enter the

tables at design water fl ow and water temperature and read

Total Cooling, Sens Cooling and Heat of Rej. capacities:

Total Cooing ..................................................................165,000 Btu/hr

Sensible Cooling ..........................................................129,300 Btu/hr

Heat of Rejection .........................................................227,300 Btu/hr

6 & 7. Entering Cooling Capacity and Airfl ow Corrections:Next, we determine our correction factors. (Refer to Cooling

Capacity, and Airfl ow Correction Tables – 4,200/5,600 nom. =

75% as percent of nominal)

Corrected Total Cooling = 165,000 x .967 x .835 = 133,228

Corrected Sensible Cooling = 129,300 x .881 x .764 = 87,030

Corrected Heat of Rejection = 227,300 .972 x .789 = 174,318

8. Water Temperature Rise Calculation & Assessment:

Note: 500 = parameters for water & 485 = parameters for

antifreeze solutions to 30% weight.

When we compare the Corrected Total Cooling and

Corrected Sensible Cooling fi gures with our load

requirements stated in Step 1, we discover that our

selection is within + 10% of our sensible load requirement.

Furthermore, we see that our Corrected Total cooling fi gure

is within 2,000 Btu/hr of the actual indicated load.

Antifreeze CorrectionsCatalog performance can be corrected for antifreeze use. Please use the following table and note the example given.

HR = 500 x gpm x (Tin - Tout)

HR = (Tin - Tout) or T Rise500 x gpm

72,432= 9.65 °F Rise

500 x 15

Antifreeze Correction ExampleAntifreeze solution is Propylene Glycol 20% by weight. Determine the corrected full load heating and cooling performance at 30˚F and 90˚F respectively as well as pressure drop at 30˚F for a *120 model.

The corrected cooling capacity at 90˚F would be: 126,800 Btu/h x 0.969 = 122,869 Btu/h

The corrected heat capacity at 30˚F would be: 104,700 Btu/h x 0.913 = 95,591 Btu/h

The corrected pressure drop at 30˚F and 30gpm would be: 1.26 ft. hd. x 1.270 = 1.60 ft. hd.

174,31834

10.3

55


Reference Calculations

Heating Calculations: Cooling Calculations:

LWT = EWT +

LAT(DB) = EAT(DB) -

LC = TC - SC

S/T =

HR

gpm x 500

SC

cfm x 1.08

SC

TC

HE

gpm x 500LWT = EWT -

LAT = EAT +

TH = HC + HWC

HC

cfm x 1.08

Legend and NotesABBREVIATIONS AND DEFINITIONS:

cfm = airflow, cubic feet/minuteEWT = entering water temperature, Fahrenheitgpm = water flow in gallons/minuteWPD = water pressure drop, psi and feet of waterEAT = entering air temperature, Fahrenheit (dry bulb/wet bulb)HC = air heating capacity, MBtu/hTC = total cooling capacity, MBtu/hSC = sensible cooling capacity, MBtu/hkW = total power unit input, kilowattsHR = total heat of rejection, MBtu/h

HE = total heat of extraction, MBtu/hHWC = hot water generator capacity, MBtu/hEER = Energy Efficient Ratio = BTU output/Watt inputCOP = Coefficient of Performance = Btu output/Btu inputLWT = leaving water temperature, °FLAT = leaving air temperature, °FTH = total heating capacity, MBtu/hLC = latent cooling capacity, MBtu/hS/T = sensible to total cooling ratio

Notes (Refer to Performance Data tables)

• Performance ratings are based on 80°F DB / 67°F WB EAT for cooling and 70°F DB EAT for heating.

• Three flow rates are shown for each unit. The lowest flow rate shown is used for geothermal open loop/well water

systems with a minimum of 50°F EWT. The middle flow rate shown is the minimum geothermal closed loop flow rate.

The highest flow rate shown is optimum for geothermal closed loop systems and the suggested flow rate for boiler/

tower applications.

• The hot water generator numbers are based on a flow rate of 0.4 gpm/ton of rated capacity with an EWT of 90°F.

• Entering water temperatures below 40°F assumes 15% antifreeze solution.

• For non-standard EAT conditions, apply the appropriate correction factors on (Refer to Correction Factor Tables).

• Interpolation between EWT, gpm, and cfm data is permissible.

56


Operating Limits

Cooling Capacity Corrections

EnteringAir WB ºF

TotalClg Cap

Sensible Cooling Capacity Multipliers - Entering DB ºF PowerInput

Heat ofRejection60 65 70 75 80 80.6 85 90 95 100

55 0.898 0.723 0.866 1.048 1.185 * * * * * * 0.985 0.913

60 0.912 0.632 0.880 1.078 1.244 1.260 * * * * 0.994 0.927

65 0.967 0.694 0.881 1.079 1.085 1.270 * * * 0.997 0.972

66.2 0.983 0.655 0.842 1.040 1.060 1.232 * * * 0.999 0.986

67 1.000 0.616 0.806 1.000 1.023 1.193 1.330 * * 1.000 1.000

70 1.053 0.693 0.879 0.900 1.075 1.250 1.404 * 1.003 1.044

75 1.168 0.687 0.715 0.875 1.040 1.261 1.476 1.007 1.141

11/10/09NOTE: * Sensible capacity equals total capacity at conditions shown.

Heating CorrectionsEnt Air DB °F Htg Cap Power Heat of Ext

45 1.062 0.739 1.158

50 1.050 0.790 1.130

55 1.037 0.842 1.096

60 1.025 0.893 1.064

65 1.012 0.945 1.030

68 1.005 0.976 1.012

70 1.000 1.000 1.000

75 0.987 1.048 0.970

80 0.975 1.099 0.930

11/10/09

Operating LimitsCooling Heating

(°F) (°C) (°F) (°C)

Air Limits

Min. Ambient Air 45 7.2 45 7.2

Rated Ambient Air 80 26.7 70 21.1

Max. Ambient Air 100 37.8 85 29.4

Min. Entering Air 50 10.0 40 4.4

Rated Entering Air db/wb 80.6/66.2 27/19 68 20.0

Max. Entering Air db/wb 110/83 43/28.3 80 26.7

Water Limits

Min. Entering Water 30 -1.1 20 -6.7

Normal Entering Water 50-110 10-43.3 30-70 -1.1

Max. Entering Water 120 48.9 90 32.2

NOTE: Minimum/maximum limits are only for start-up conditions, and are meant for bringing the space up to occupancy temperature. Units are not designed to operate at the minimum/maximum conditions on a regular basis. The operating limits are dependent upon three primary factors: 1) water temperature, 2) return air temperature, and 3) ambient temperature. When any of the factors are at the minimum or maximum levels, the other two factors must be at the normal level for proper and reliable unit operation.

57


Operating Limits cont.

Model GPMPressure Drop (psid)

30oF 50oF 70oF 90oF 110oF

120

10 0.4 0.4 0.3 0.3 0.2

15 0.8 0.7 0.7 0.6 0.5

20 1.4 1.2 1.1 1.1 1.0

30 2.9 2.6 2.5 2.4 2.1

180

24 2.1 2.0 1.9 1.9 1.7

32 3.7 3.4 3.3 3.2 3.0

39 5.2 5.0 4.9 4.7 4.6

45 7.0 6.6 6.4 6.2 5.9

11/27/17

Air Flow Corrections (Part Load)Airfl ow Cooling Heating

CFM Per Ton of Clg

% of Nominal Total Cap Sens Cap Power Heat of Rej Htg Cap Power Heat of Ext

240 60 0.922 0.778 0.956 0.924 0.943 1.239 0.879275 69 0.944 0.830 0.962 0.944 0.958 1.161 0.914300 75 0.957 0.866 0.968 0.958 0.968 1.115 0.937325 81 0.970 0.900 0.974 0.970 0.977 1.075 0.956350 88 0.982 0.933 0.981 0.980 0.985 1.042 0.972375 94 0.991 0.968 0.991 0.991 0.993 1.018 0.988400 100 1.000 1.000 1.000 1.000 1.000 1.000 1.000425 106 1.007 1.033 1.011 1.008 1.007 0.990 1.010450 113 1.013 1.065 1.023 1.015 1.012 0.987 1.018475 119 1.017 1.099 1.037 1.022 1.018 0.984 1.025500 125 1.020 1.132 1.052 1.027 1.022 0.982 1.031520 130 1.022 1.159 1.064 1.030 1.025 0.979 1.034

1/4/18

Air Flow Corrections (Full Load)Airfl ow Cooling Heating

CFM Per Ton of Clg

% of Nominal Total Cap Sens Cap Power Heat of Rej Htg Cap Power Heat of Ext

240 60 0.922 0.786 0.910 0.920 0.943 1.150 0.893275 69 0.944 0.827 0.924 0.940 0.958 1.105 0.922300 75 0.959 0.860 0.937 0.955 0.968 1.078 0.942325 81 0.971 0.894 0.950 0.967 0.977 1.053 0.959350 88 0.982 0.929 0.964 0.978 0.985 1.031 0.973375 94 0.992 0.965 0.982 0.990 0.993 1.014 0.988400 100 1.000 1.000 1.000 1.000 1.000 1.000 1.000425 106 1.007 1.034 1.020 1.010 1.007 0.990 1.011450 113 1.012 1.065 1.042 1.018 1.013 0.983 1.020475 119 1.017 1.093 1.066 1.026 1.018 0.980 1.028500 125 1.019 1.117 1.092 1.033 1.023 0.978 1.034520 130 1.020 1.132 1.113 1.038 1.026 0.975 1.038

1/4/18

Pressure Drop

58


120 - Min Load - Performance Data

Low Speed (1480 CFM)EWToF

Flowgpm

WPD HEATING - EAT 70 oF COOLING - EAT 80/67 oF

PSI FTHC

Mbtu/hPower(kW)

HEMbtu/h

LAToF

COPTC

Mbtu/hSC

Mbtu/hS/T

POWER(kW)

HRMbtu/h

EER

30

5 0.12 0.27 17.5 1.81 12.4 76.2 2.8

Operation not Reccommended

7.5 0.24 0.56 19.3 1.82 14.1 78.0 3.1

10 0.42 0.97 19.9 1.84 14.6 79.0 3.2

40

5 0.11 0.25 21.1 1.89 15.9 79.0 3.3

7.5 0.23 0.53 23.3 1.90 18.0 80.8 3.6

10 0.38 0.88 24.0 1.92 18.7 81.9 3.7

50

5 0.10 0.24 24.7 1.97 19.4 81.7 3.7

7.5 0.22 0.50 27.2 1.98 22.0 83.6 4.0

10 0.35 0.81 28.0 2.00 22.8 84.7 4.1

60

5 0.10 0.22 28.3 2.04 22.9 84.5 4.1 42.8 36.9 0.863 1.46 51.9 29.24

7.5 0.20 0.47 31.2 2.05 26.0 86.5 4.5 42.9 37.0 0.863 1.37 51.6 31.29

10 0.34 0.79 32.1 2.07 26.9 87.6 4.5 43.0 37.1 0.863 1.33 51.3 32.33

70

5 0.09 0.21 31.8 2.12 26.4 87.2 4.4 42.4 36.0 0.850 1.68 51.3 25.19

7.5 0.19 0.44 35.1 2.13 29.9 89.2 4.8 42.5 36.1 0.850 1.58 51.0 26.95

10 0.32 0.74 36.1 2.15 31.0 90.4 4.9 42.6 36.2 0.850 1.53 50.7 27.84

80

5 0.08 0.18 35.3 2.19 29.9 90.0 4.7 42.0 35.1 0.836 2.26 50.6 18.62

7.5 0.16 0.38 39.0 2.21 33.9 92.1 5.2 42.1 35.2 0.836 2.11 50.3 19.93

10 0.30 0.69 40.1 2.23 35.1 93.3 5.3 42.2 35.3 0.836 2.05 50.0 20.59

90

5 0.06 0.15 38.9 2.27 33.4 92.7 5.0 41.5 34.2 0.825 2.70 49.9 15.40

7.5 0.14 0.32 43.0 2.29 37.8 94.9 5.5 41.6 34.3 0.825 2.52 49.6 16.48

10 0.28 0.65 44.2 2.31 39.2 96.1 5.6 41.7 34.4 0.825 2.45 49.3 17.02

100

5 0.05 0.12


41.1 33.2 0.809 3.15 49.3 13.06

7.5 0.11 0.25 41.2 33.3 0.809 2.95 48.9 13.98

10 0.21 0.49 41.3 33.4 0.809 2.86 48.7 14.44

110

5 0.05 0.10 40.7 32.3 0.795 3.60 48.6 11.31

7.5 0.11 0.24 40.8 32.4 0.795 3.37 48.2 12.11

10 0.19 0.44 40.9 32.5 0.795 3.27 48.0 12.51

120

5 0.04 0.09 40.2 31.4 0.782 4.05 47.9 9.93

7.5 0.10 0.23 40.3 31.5 0.782 3.79 47.5 10.63

10 0.19 0.44 40.4 31.6 0.782 3.68 47.3 10.98

130

5 0.04 0.08 39.8 29.9 0.750 4.50 46.3 8.85

7.5 0.10 0.22 39.9 29.9 0.750 4.21 45.9 9.47

10 0.18 0.42 40.0 30.0 0.750 4.09 45.7 9.78

Note: Values in this table are based on extrapolated ISO data with an ESP of .5 inH2O 1/22/18

59


120 - Part Load Plenum Fan - Performance DataMid Speed (2400 CFM)

EWToF

Flowgpm


PSI FTHC

Mbtu/hPower(kW)

HEMbtu/h

LAToF

COPTC

Mbtu/hSC

Mbtu/hS/T

POWER(kW)

HRMbtu/h

EER

30

10 0.42 0.97 52.5 4.78 41.0 88.15 3.2


15 0.8 1.85 53.9 4.80 42.8 88.66 3.3

20 1.36 3.14 55.6 4.80 44.7 89.11 3.4

40

10 0.38 0.88 57.6 4.84 45.9 89.59 3.5

15 0.76 1.76 58.7 4.94 46.6 91.71 3.5

20 1.3 3.00 60.4 4.88 49.0 91.08 3.6

50

10 0.35 0.81 62.7 4.90 50.8 91.44 3.8

15 0.72 1.66 64.6 4.93 52.9 92.42 3.9

20 1.23 2.84 65.8 4.94 54.0 93.05 3.9

60

10 0.34 0.79 61.5 4.95 49.0 91.58 3.6 86.2 59.2 0.687 3.85 103.2 22.42

15 0.68 1.57 67.9 4.98 55.6 93.67 4.0 87.0 58.5 0.673 3.49 102.7 24.96

20 1.18 2.73 69.8 5.03 57.6 94.86 4.1 87.7 58.0 0.661 3.33 102.7 26.31

70

10 0.32 0.74 67.6 5.02 54.8 93.7 4.0 81.7 55.9 0.684 4.43 100.1 18.42

15 0.65 1.50 73.8 5.12 69.3 97.3 4.2 81.9 59.5 0.726 4.08 99.4 20.09

20 1.14 2.63 76.3 5.09 63.8 97.5 4.4 82.5 59.5 0.721 3.92 99.7 21.06

80

10 0.3 0.69 74.1 5.08 61.3 96.4 4.3 78.8 55.4 0.703 5.01 99.1 15.73

15 0.64 1.48 78.0 5.18 65.1 99.3 4.4 79.1 55.4 0.701 4.66 98.0 16.96

20 1.1 2.54 81.2 5.13 67.9 100.5 4.6 79.7 54.7 0.687 4.49 98.0 17.73

90

10 0.28 0.65 78.0 5.13 65.1 99.4 4.5 76.8 54.2 0.706 5.60 98.7 13.71

15 0.61 1.41 84.7 5.20 71.6 102.5 4.8 77.2 54.8 0.710 5.26 98.0 14.69

20 1.07 2.47 86.3 5.16 72.5 103.3 4.9 77.2 55.0 0.713 5.10 97.5 15.12

100

10 0.21 0.49


72.4 55.4 0.766 6.22 96.0 11.64

15 0.53 1.22 73.5 54.7 0.744 5.90 96.3 12.46

20 0.98 2.26 74.1 55.4 0.748 5.76 96.4 12.86

110

10 0.19 0.44 69.3 55.0 0.794 6.86 95.1 10.1

15 0.52 1.20 69.7 55.7 0.799 6.55 94.7 10.63

20 0.95 2.19 69.5 56.1 0.808 6.41 94.2 10.85

120

10 0.19 0.44 64.6 53.1 0.821 7.55 92.3 8.56

15 0.5 1.16 65.4 54.1 0.828 7.25 92.3 9.02

20 0.94 2.17 65.7 54.5 0.829 7.09 92.6 9.28

130

10 0.18 0.42 60.1 51.8 0.861 8.24 89.5 7.3

15 0.5 1.16 61.5 52.4 0.852 7.95 90.6 7.74

20 0.92 2.13 61.4 52.3 0.851 7.81 89.7 7.87

11/21/17

60


High Speed (4200 CFM)

EWToF

Flowgpm


PSI FTHC

Mbtu/hPower(kW)

HEMbtu/h

LAToF

COPTC

(Total)SC

(Sensible)S/T

POWER(kW)

HRMbtu/h

EER(Brine)

30Operation not Recommended

Operation not Recommended

30 2.90 6.70 104.7 9.9 81.748 90.8 3.09

40

15 0.81 1.87 95.4 9.9 66.113 89.8 2.82 149.8 97.9 0.654 7.38 178.6 20.29

20 1.30 3.00 104.1 10.0 75.815 90.8 3.04Operation not Recommended

30 2.75 6.35 108.6 10.0 81.944 92.1 3.19

50

15 0.77 1.78 104.6 10.1 75.487 92.2 3.04 145.4 101.4 0.697 8.19 177.1 17.75

20 1.23 2.84 113.2 10.4 83.165 93.9 3.19 146.9 102.9 0.701 7.79 177.1 18.86

30 2.64 6.10 120.2 10.4 90.789 94.8 3.38 147.4 107.2 0.727 7.41 176.5 19.89

60

15 0.75 1.73 114.9 10.3 84.692 94.6 3.27 141.9 104.7 0.738 9.05 175.7 15.69

20 1.20 2.77 121.2 10.3 92.761 95.0 3.45 143.7 104.4 0.727 8.62 175.8 16.67

30 2.56 5.91 131.6 10.7 101.216 98.1 3.61 144.5 105.3 0.728 8.22 175.6 17.58

70

15 0.73 1.69 123.6 10.3 95.0 94.7 3.51 136.0 96.5 0.710 9.90 171.5 13.73

20 1.15 2.66 132.8 10.6 102.0 97.7 3.65 137.8 98.5 0.715 9.47 172.1 14.54

30 2.47 5.71 141.6 10.8 110.0 99.7 3.83 138.9 100.6 0.724 9.06 171.8 15.33

80

15 0.70 1.62 135.2 10.7 103.9 98.7 3.69 131.0 95.6 0.730 10.80 169.6 12.14

20 1.13 2.61 142.6 10.8 111.7 99.8 3.87 132.0 96.7 0.732 10.38 169.0 12.73

30 2.42 5.59 149.0 11.0 116.7 101.7 3.97 132.5 96.2 0.726 9.98 167.8 13.28

90

15 0.68 1.57 142.6 10.9 110.3 101.2 3.82 123.1 93.0 0.755 11.74 164.2 10.49

20 1.10 2.54 148.4 11.0 142.8 102.5 3.96 125.2 93.1 0.744 11.33 164.9 11.05

30 2.39 5.52 154.6 11.2 121.0 102.8 4.06 126.8 93.9 0.740 10.93 165.6 11.61

100

15 0.51 1.18


117.9 89.8 0.762 12.69 161.8 9.30

20 0.95 2.19 118.8 90.4 0.761 12.29 161.5 9.66

30 2.14 4.94 119.1 91.3 0.767 11.90 160.4 10.00

110

15 0.51 1.18 111.0 86.7 0.781 13.77 157.8 8.06

20 0.93 2.15 112.4 87.0 0.774 13.33 157.6 8.43

30 2.10 4.85 111.3 8.6 0.078 12.89 155.2 8.64

120

15 0.49 1.13 103.9 84.6 0.814 14.87 154.5 6.99

20 0.91 2.10 102.8 86.6 0.842 14.43 151.5 7.12

30 2.07 4.78 103.6 85.8 0.828 14.04 151.3 7.38

130


20 0.90 2.08 94.7 84.8 0.896 15.54 147.4 6.10

30 2.03 4.69 95.5 83.5 0.874 15.18 148.1 6.23

1/25/18

120 - Full Load Plenum Fan - Performance Data

61


180 - Min Load - Performance Data

Low Speed (2460 CFM)EWToF

Flowgpm


PSI FTHC

Mbtu/hPower(kW)

HEMbtu/h

LAT COPTC

Mbtu/hSC

Mbtu/hS/T

POWER(kW)

HRMbtu/h

EER

30

12 0.57 1.32 22.6 2.68 15.3 74.2 2.47

Operation not recommended

16 0.99 2.28 23.5 2.71 16.0 75.6 2.54

20 1.51 3.48 24.0 2.74 16.4 76.4 2.57

40

12 0.55 1.26 29.1 2.72 22.3 76.6 3.14

16 0.94 2.18 30.2 2.74 23.2 78.1 3.23

20 1.44 3.32 30.9 2.77 23.9 78.8 3.27

50

12 0.53 1.22 35.8 2.75 29.5 79.1 3.82 60.5 51.6 0.85 1.57 67.7 38.5

16 0.92 2.11 37.2 2.77 30.7 80.6 3.93 60.4 51.2 0.85 1.55 67.5 39.0

20 1.40 3.24 38.1 2.80 31.6 81.4 3.98 60.7 51.0 0.84 1.53 67.7 39.6

60

12 0.51 1.18 42.3 2.78 36.6 81.6 4.47 57.9 50.5 0.87 1.99 66.5 29.1

16 0.89 2.05 44.0 2.81 38.1 83.1 4.60 57.9 50.2 0.87 1.96 66.3 29.5

20 1.37 3.16 45.0 2.84 39.2 83.9 4.66 58.1 49.9 0.86 1.94 66.4 29.9

70

12 0.49 1.13 48.7 2.81 43.4 83.9 5.08 55.5 49.5 0.89 2.39 65.3 23.2

16 0.86 1.99 50.6 2.84 45.2 85.5 5.23 55.4 49.1 0.89 2.36 65.0 23.5

20 1.33 3.07 51.8 2.87 46.5 86.4 5.29 55.7 48.9 0.88 2.34 65.2 23.8

80

12 0.47 1.08 55.0 2.84 50.2 86.3 5.67 53.0 48.4 0.91 2.80 64.1 19.0

16 0.83 1.91 57.2 2.87 52.3 87.9 5.84 53.0 48.1 0.91 2.76 63.8 19.2

20 1.29 2.97 58.5 2.90 53.9 88.8 5.92 53.2 47.9 0.90 2.73 64.0 19.5

90

12 0.45 1.03 61.6 2.87 57.3 88.8 6.28 50.5 47.3 0.94 3.22 62.8 15.7

16 0.79 1.83 64.0 2.90 59.7 90.4 6.47 50.5 47.0 0.93 3.17 62.6 15.9

20 1.24 2.86 65.5 2.93 61.5 91.3 6.55 50.7 46.8 0.92 3.14 62.8 16.1

100

12 0.43 0.98


48.0 46.3 0.96 3.62 61.6 13.3

16 0.76 1.76 48.0 46.0 0.96 3.58 61.4 13.4

20 1.19 2.76 48.2 45.8 0.95 3.54 61.5 13.6

110

12 0.42 0.97 45.5 45.2 0.99 4.04 60.3 11.3

16 0.75 1.74 45.5 44.9 0.99 3.99 60.1 11.4

20 1.18 2.73 45.7 44.7 0.98 3.94 60.3 11.6

120

12 0.42 0.96 43.0 43.6 1.01 4.45 59.1 9.7

16 0.75 1.72 43.0 43.3 1.01 4.40 58.9 9.8

20 1.17 2.70 43.1 43.1 1.00 4.35 59.0 9.9

Note: Values in this table are based on extrapolated ISO data with an ESP of .5 inH2O 1/24/18

62


Mid Speed (3250 CFM)

EWToF

Flowgpm


PSI FTHC

Mbtu/hPower(kW)

HEMbtu/h

LAT COPTC

Mbtu/hSC

Mbtu/hS/T

POWER(kW)

HRMbtu/h

EER

30

24 2.12 4.90 77.1 7.26 58.0 90.5 3.11


28 2.86 6.61 78.0 7.15 58.9 89.8 3.20

32 3.66 8.45 79.1 7.12 60.1 89.7 3.25

40

24 2.04 4.71 84.4 7.16 65.2 91.8 3.45

28 2.74 6.33 86.2 7.11 67.5 91.3 3.56

32 3.52 8.13 88.7 7.31 69.2 93.3 3.55

50

24 1.98 4.57 93.8 7.34 74.8 94.1 3.75 130.0 84.2 0.65 5.10 151.6 25.5

28 2.65 6.12 98.2 7.51 92.5 96.5 3.83 131.4 84.3 0.64 5.09 153.6 25.8

32 3.42 7.90 101.4 7.46 82.1 96.4 3.98 131.9 87.9 0.67 4.93 153.3 26.7

60

24 1.91 4.41 104.0 7.51 85.1 96.9 4.06 125.6 79.8 0.64 5.71 149.1 22.0

28 2.58 5.96 108.1 7.58 88.7 98.7 4.18 125.8 80.4 0.64 5.61 149.0 22.4

32 3.35 7.74 110.6 7.66 91.3 99.7 4.23 125.8 81.1 0.64 5.53 148.6 22.7

70

24 1.88 4.34 116.1 7.76 96.9 100.8 4.38 118.1 84.0 0.71 6.37 143.6 18.5

28 2.54 5.87 120.9 7.95 101.3 103.6 4.46 119.5 82.5 0.69 6.27 144.7 19.1

32 3.3 7.62 123.0 7.94 104.2 103.7 4.57 118.9 83.7 0.70 6.19 143.9 19.2

80

24 1.87 4.32 128.6 8.08 108.9 104.6 4.67 115.3 80.5 0.70 7.14 142.8 16.1

28 2.5 5.78 133.0 8.16 113.3 106.2 4.78 115.5 81.3 0.70 7.04 143.1 16.4

32 3.25 7.51 136.7 8.21 117.2 107.3 4.88 115.8 82.0 0.71 6.96 143.0 16.7

90

24 1.87 4.32 140.4 8.22 121.3 107.6 5.00 110.7 77.0 0.70 7.91 140.1 14.0

28 2.46 5.68 144.6 8.28 125.3 108.7 5.11 110.6 76.5 0.69 7.81 139.6 14.2

32 3.2 7.39 148.4 8.31 129.4 109.7 5.56 111.1 76.1 0.68 7.73 140.0 14.4

100

24 1.7 3.93


102.0 79.7 0.78 8.71 133.9 11.7

28 2.33 5.38 103.2 79.5 0.77 8.63 134.7 12.0

32 3.04 7.02 102.7 78.7 0.77 8.54 133.5 12.0

110

24 1.67 3.86 97.6 73.3 0.75 9.61 131.6 10.2

28 2.3 5.31 96.8 74.2 0.77 9.52 130.9 10.2

32 3.02 6.98 97.1 73.8 0.76 9.43 130.9 10.3

120

24 1.67 3.86 90.6 73.2 0.81 10.56 128.1 8.6

28 2.29 5.29 90.8 73.5 0.81 10.45 128.0 8.7

32 2.98 6.88 90.9 73.6 0.81 10.44 127.9 8.7

11/21/17

180 - Part Load - Performance Data

63


High Speed (5600 CFM)EWToF

Flowgpm


PSI FTHC

Mbtu/hPower(kW)

HEMbtu/h

LAT COPTC

Mbtu/hSC

Mbtu/hS/T

POWER(kW)

HRMbtu/h

EER

30Operation not recommended

Operation not recommended45 6.98 16.12 146.9 15.07 103.1 93.6 2.86

40

32 3.53 8.15 154.4 15.27 109.1 95.1 2.96

39 5.15 11.90 160.9 15.49 114.7 96.5 3.04

45 6.75 15.59 164.2 15.59 117.8 97.1 3.09

50

32 3.44 7.95 172.4 15.86 125.4 98.8 3.19 181.8 126.1 0.694 13.01 230.9 14.0

39 5.02 11.60 179.8 15.96 132.6 99.2 3.3 175.7 129.0 0.735 12.80 224.1 13.7

45 6.62 15.29 183.9 16.14 136.5 99.8 3.34 172.8 127.4 0.737 12.68 220.6 13.6

60

32 3.36 7.76 192.3 16.41 144.4 101.5 3.43 188.9 128.5 0.680 14.12 241.6 13.4

39 4.93 11.39 200.3 16.69 151.2 103.0 3.52 186.2 126.4 0.679 13.88 238.0 13.4

45 6.49 14.99 205.2 16.78 155.8 103.4 3.58 184.2 123.2 0.669 13.74 235.4 13.4

70

32 3.30 7.62 208.5 17.01 159.2 105.2 3.59 182.8 130.3 0.713 15.14 238.7 12.1

39 4.87 11.25 213.8 17.08 164.2 105.6 3.67 183.8 130.6 0.710 14.93 238.4 12.3

45 6.41 14.81 215.9 17.21 165.9 106.7 3.68 184.4 132.9 0.721 14.76 238.9 12.5

80

32 3.25 7.51 227.6 17.49 177.0 107.6 3.81 174.6 124.1 0.711 16.29 232.4 10.7

39 4.79 11.06 233.4 17.64 182.6 108.7 3.88 175.5 124.3 0.709 16.04 233.1 10.9

45 6.34 14.65 237.6 17.77 186.0 109.5 3.92 175.3 122.5 0.699 15.93 233.1 11.0

90

32 3.22 7.44 237.0 17.89 185.1 110.9 3.88 165.4 129.3 0.782 17.44 227.3 9.5

39 4.72 10.90 242.8 17.97 190.7 111.4 3.96 166.0 126.5 0.762 17.20 226.2 9.7

45 6.23 14.39 242.8 18.08 194.0 111.8 3.96 166.1 129.2 0.778 17.07 226.7 9.7

100

32 3.01 6.95


155.0 124.2 0.802 18.69 220.0 8.3

39 4.65 10.74 155.4 125.2 0.806 18.52 220.0 8.4

45 5.93 13.70 155.8 126.2 0.810 18.35 219.9 8.5

110

32 2.96 6.84 143.6 124.0 0.864 20.03 211.8 7.2

39 4.59 10.60 144.5 121.3 0.839 19.90 212.5 7.3

45 5.88 13.58 145.4 118.6 0.815 19.76 213.2 7.4

120

32 2.93 6.77 130.9 107.6 0.822 20.38 199.9 6.4

39 4.49 10.37 131.3 107.6 0.820 20.18 199.5 6.5

45 5.78 13.35 131.7 107.7 0.818 19.98 199.2 6.6

11/21/17

180 - Full Load - Performance Data

64


Wiring Schematics

Commercial Variable Speed - 120-180 Series

GNDOUT5DC

123Red

T

T

T

T Brown(253)

Brown(252)

Black

Red

GNDOUT5DC

123

White

Auxi liary Heat CT

Blue(254) TBlue(255)SC

TSU

C P

WhiteBlack

Pink(139) T

Pink(140)

HW HWWhite

White

Black

Black

Orange

Orange

Black(104)

Black(103)

Note 4

White

White

Purple

Purple

Gray(136)

Gray(135)

GNDOUT5DC

324

White324

FLOW METER

Brown

Green

PRESSURE TRANSDUCER

PRESSURE TRANSDUCER

Dehumidification Output

Analog Output 0-10VDC

P8

MOT

OR P6

RS48

5 P7

ZONE P9

ABC

STEP

PER

ANA

ACC2

DHDI

V

NO

CO

M

K6

NO

CO

M

K5

C R L1 L1 L2 L2P1

2P1

0P5

P11

CR(-)(+) CR(-)(+) CR(-)(+)

P4P2

K1K2

K3

HA2

HA1

SGI

LOO

PVS

DAT

AVS

PUM

PPU

MPSL

AVE

P3

V+CRTXRX +5

P14

LLT

P1LA

TFL

OW

LWT

EWT

CT2

43

CT2

43

CT1

21

CT1

21

StatusG

DISC

HP1

6

P17

P18

P15


SW1


12345

ONOFF



Current Transducer (CT)

Thermistor

Light emi tting diode - Green

Relay coil

Capacitor w/ bleed resistor

Switch - Condensate overflow

Switch - High pressure

Switch - Low pressure

Polarized connector

Factory Low voltage wi ringFactory Line vol tage wiringField low voltage wiringField l ine voltage wi ringOptional blockDC Voltage PCB tracesJunctionQuick connect terminal

Wire nut

Field wi re lug

Ground

Fuse

CC -CO -K5 -K6 -CR3 -CR4 -

F1 and F2 -

WCL -

HE -HP -

LP -

PB1, PB2 - PS -RV -SW1 -SW1 -SW2 -

TS -

Compressor ContactorCondensate overflow sensorDHW pump relayLoop pump relay

Fuses

Water Coil Limit Sensor

Heater elementHigh pressure switch

Low pressure switch

Power blocksPower stripReversing Valve coilDIP package 5 position AXBTEST MODE ABC BoardDIP package 8 position ABC Board

Thermal limit swi tch

Legend

Relay Con tacts-N.O., N.C.

G

T

132P

L1

PSC Fan Speed RelayPSC Fan Power Relay

ER1 to ER4 - Aux heat stage relays

HWL - Hot water limit sensorSC - Start Contactor

Start RelaySR -

CS - Compressor Solenoid

Breaker

CS

+5C

CC

21

INOU

T+5

S

Accessory 2 Output

1– Optional, factory installed modulating water valve.2– Optional, factory installed modulating reheat.3– Optional, factory installed UPC.4– Optional, factory installed waters ide economizer.

Notes:

1234

+X1X2Y1

5 Y2

Gray

Black

Yellow

Red

Orange

Green/Yellow (12)

POWER SUPPLY BOARD

R C

234 1 345 2 1

P2 P1

234 1 345 2 1

P4 P3

GND15V

P5

+5V +15 V

GND

USB USB5A

Gray

Blac

k

Yello

w

Red

Oran

ge

ELECTRONIC EXPANSION

VALVE

White

Green

Red

GND24 VAC

0-10DC

2

3

12

3

No te 1

Red

Gree

n

Whi

te

Blac

k

DESCRIPTION SW2-4 SW2-5Cycle with Blower ON ONCycle with Compressor OFF OFFWater Valve Slow Opening ON OFFCycle with Comm. T-stat Hum Cmd OFF ON

ABC SW2 Accessory Relay

SW1-4 SW1-5 DESCRIPTIONON ON Cycles with BlowerOFF ON Cycles with CC rst stage compressor or compressor spd 1-12ON OFF Cycles with CC2 second stage of compressor or comp spd 7-12OFF OFF Cycles with DH from ABC board

AXB Accessory 2 DIP Se ngs

Red

Black

65


Wiring Schematics cont.

Commercial Variable Speed - 120-180 Series

Transformer

24V

TRVCC

HP

Condensate

Black(10)

Black(9)

Blue(8)

Blue(7)

LP

Black

Black

FP2

TYellow

Yellow

FP1

Orange(2)

Orange(1)

RV

Black(15)

Violet(14)

Brown(23)

Yellow

Black/White

L2 L3

CCT2 T3

CFM

P13

P4

SW1

P5JW2

P9

LO

O/B

Y2WDH

P8 P7

RS485 NET RS485 NET

P6

RS485 EXP

P3

SW2

On

Future Use L Output Type

CC – Dual/SingleAcc – Dip 5Acc – Dip 4

RV – B/OFP2 – 15°F/30°FFP1 – 15°F/30°F

Com1LED5

Com2LED5

Test Mode

F1-3A

P1

C

PWM

12345678

ALMALGACC COMACC NOACC NC

RC

GY1

EH2CEH1CCOC R - +C R - +

Off

Faul tLED1

R

StatusLED3

ConfigLED2

CC2 CC F C R F FG CC CCGCC2HI

CC2LO

CC2G REVREV FP1 FP1 FP2 FP2 LPS LPSHPSHPS

Aurora Base Control(ABC)

K1-RV Relay

K2-CC Relay

K3-CC2 Relay

K4-Fan RelayK5-Alarm Relay

K6-Acc Relay

F

R

C

CCGY1C

R

ESLS

P2EH1

YG G

G

L1

T1

RS485 NET

Compressor

T1

T2

T3

Green / Yellow (G1)

L1 L2 L3 WVU

12

3 AI2

AI1

Compressor Variable Frequency (VFD)AI3

118

0V CommonT

Discharge Line Temperature

L1 L2 L3

L2L1 L3

Unit Power Supply

L1 L2 L3

L2L1 L3

G

Non-Fused Di sconnect, HACR Circ ui t Brea ker, or Termina l Block

Blow

er F

uses

F4 F5 F6

BlowerMotor

L1

L2

L3

IDB (D-)

A (D+ )

GN D

IDB (D-)

A (D+ )

GN D

GN Dfo ut

Blac

k

Whit

e

Red

Red for 208VBlue for 230VRed for 460V

To UPCGray (60)

Gray

(61)

RH

No te 2

No te 3

Blac

k (G) Re

d (J)

Whit

e (H)

Blac

k (A)

Blac

k (K)

Red (

M)

Whit

e (L)

L1 L2 L3

L2L1 L3Com

press

or F

uses

F1 F2 F3

Whit

e (B)

Red (

C)

Black (D)

White (E)

Red (F)

Green / Yellow (18)Control Box Base Panel

Control Box Door

F7

F8BlackBlack (16)

Black (17)

Class 2

Blue

Yello

w

Blac

k

Green/Yellow (11)

66



Commercial Variable Speed

To ABC - P8

Yellow

Brown

Green

Blue

White

Black

Orange

Red

Devices Must Be Wired in Daisy Chain Configuration

GNDRNET+

RNET-+12V

GNDRNET+

RNET-+12V

GNDRNET+

RNET-+12V

ZS Sensor 1Addr: 0

1 2 3 4 5 6 7 8

ZS Sensor 2Addr: 1

ZS Sensor 3Addr: 2

BACnet or N2 Network Connections

2W

4W

RNET LOCA L A CCESS

POWER

GND

24 VAC

FO RMA T BATT

TEN’S

ONE’S

TXLED1

RXLED2

TXLED6

RXLED7

POWERLED3

RUNLED4

ERRLED5

0

5

23

87

1

4

9

6

0

5

23

87

1

4

9

6

LO N ADAPTER

PORT

NET+

NET-

COM

NET+

NET-

N/C

N/C

Signal

GNDRNET+

RNET-+12V

GNDLN+LN-+12

/S

O N

12

34

56

78

Optional LON Add-On Module

N/C

N/C

Signal

Service

ECHELO

N

12

Net

LED1

LED2

LED3

LED4

Tx

Rx

LON OC

MAC Address Setting

Communication Options

NET

+

NET

-

COM

NET

+

NET

-

COM

12

1 2

LON Network Connections

Devices Must Be Wired in Daisy

Chain Configuration

DIP Switch Value

1248

ON

12

34

ZS Sensor Information

Each ZS sensor must have a unique address, but the addresses do not need to be sequential. Use the DIP switches on the back of the ZS sensor to set an address from 0 to 4. (0 is the factory default.) Each DIP switch has the value shown in the figure to the left. Turn on as many DIP switches as you need so that their total value equals the address.

Zone Sensors can be wired in daisy chain as show or in a star or hybrid configuration. Maximum of 5 sensors per UPC. Maximum allowable load 210mA. See the UPC install manual for possible sensor combinations.

LegendFactory Low Voltage WiringField Low Voltage Wiring

12345678 RJ45 Connector

Notes

NOTE 1

1. Use DIP Switches 5 – 8 to change communication protocol and DIP switches 1 – 2 to change BACnet baud rate

1 2

67




AXB BOARD

Slow FlashFast FlashFlash Code

Flash Code 19Alarm - Low Loop Pressure Flash Code 21Fault - Communication ECM Fan Motor Error Flash Code 22

Fault - Discharge Temperature Sensor Flash Code 51Fault - Suction Pressure Sensor Flash Code 52

Fault - Critical Communication Error

Flash Code 53

Safe Mode - Ambient Temperature Sensor Flash Code 49Future Use Flash Code 17Non-Critical Communication Error Flash Code 18

Alarm - Hot Water Flash Code 15Fault Variable Speed Pump Flash Code 16

Fault LED (LED 1, Red) Cont.

ESD Flash Code 6Future Use Flash Code 7

Flash Code 3Future Use Flash Code 4Load Shed Flash Code 5

Reserved Flash Code 6Condensate Overflow Lockout Flash Code 7Over/Under Voltage Shutdown Flash Code 8Future Use Flash Code 9Compressor Monitoring Flash Code 10Fault- FP1 and FP2 Sensor Error Flash Code 11Future Use Flash Code 12Non-Critical AXB Sensor Error Flash Code 13Critical AXB Sensor Error Flash Code 14

Flash Code 2

Freeze Detection - FP1 Flash Code 5

Flash Code 2Low Pressure Lockout Flash Code 3Freeze Detection- FP2 Flash Code 4

High Pressure Lockout

Future UseDehumidification Mode

DIP Switch Overide Slow FlashStatus LED (LED 3, Green)

Normal Mode ONControl is Non - Functional OFFTest Mode Slow FlashLockout Active Fast Flash

Aurora LED Flash Codes1 second on and 1 second off

No Software Overide OFF

100 milliseconds on and 100 milliseconds off100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating

Random Start Delay (Alternating Colors)Status LED (LED1, Green) Fast FlashConfiguration LED (LED 2, Yellow) Fast FlashFault LED (LED 3, Red) Fast Flash

Configuration LED (LED 2, Yellow)

Fault LED (LED 1, Red)Normal Mode OFFInput Fault Lockout Flash Code 1

Derate - Drive Temperature Flash Code 41Derate - High Discharge Temperature Flash Code 42Derate - Low Suction Temperature Flash Code 43

Alarm - Home Automation 1 Flash Code 23Alarm - Home Automation 2 Flash Code 24Fault - EEV Error Flash Code 25

Safe Mode - EEV (Indoor) Communication Flash Code 47Safe Mode - EEV (Outdoor) Communication Flash Code 48

Derate - Low Condensing Pressure Flash Code 44Derate - High Condensing Pressure Flash Code 45Derate - Outer Power Limit Flash Code 46

Fault - Over Current Flash Code 56Fault - Over/Under Voltage Flash Code 57

Flash Code 54Fault - Compressor Out of Envelope Flash Code 55

Fault - Condensing Pressure SensorFault - Low Supply Voltage

Safe Mode - Max Operating Pressure Flash Code 74

Fault - Loss of Charge Flash Code 71Safe Mode - Suction Temperature Sensor Flash Code 72Safe Mode - LAT Temperature Sensor Flash Code 73

Fault - High Drive Temperature Flash Code 58Fault - Drive Internal Error MOC/AOC Flash Code 59Fault - Multiple Safe Modes Flash Code 61

CC2

EH1

Fact

ory

Faul t

ALG

ALMLSES ACC

c

Status


RV – K1

CC2

CC – K2

CC Hi – K3

Fan – K4

Alarm – K5

Acc – K6

ACC

no

ACC

nc


3A-Fu

se


LOG

HICCGCCFGFR

HPHPLP

FP2FP2FP1

REVREV

CFM

PWM

ECM PWM

Fact

ory


R R

CC

C

RS 48

5

EH2C

EH1C

CO

(+)(-)RCRS

485 E

xpFa

ctory

Com1

Com2

Config

G

G

G

YR

SW1 Test

FP1 – 15oF/30oF

JW2 - Alarm

P11

P5

P2 P1

P8

P7

P9

P6

P3

SW2

P13P4 FP2 – 15oF/30oF

RV – B/O

ACC – Dip 4



Fact

ory U

se


C

LP

FP1

F

CC

G

Y1

1

2

3

4

5

6

7

8

Off On

N/A

RS48

5 NET

LED3

LED2LED1

68



DESCRIPTION SW2-4 SW2-5Cycle with Blower ON ONCycle with Compressor OFF OFFWater Valve Slow Opening ON OFFCycle with Comm. T-stat Hum Cmd OFF ON

ABC SW2 Accessory Relay

SW1-4 SW1-5 DESCRIPTIONON ON Cycles with BlowerOFF ON Cycles with CC rst stage compressor or compressor spd 1-12ON OFF Cycles with CC2 second stage of compressor or comp spd 7-12OFF OFF Cycles with DH from ABC board

AXB Accessory 2 DIP Se ngs

Thermistor

Relay Coi l

Switch - Condensate OverflowSwitch - High pressure

Switch - Low pressure

Polarized connector

Factory Low Voltage WiringFactory Line Vol tage WiringField Low Voltage WiringField Line Voltage Wi ringOptional BlockDC Voltage PCB Traces

Internal Ju nctionQuick Con nect Terminal

Field Wiring Lug

Ground

Relay Con tacts – N.O., N.C.

Field Zone Sensor Wi ring

Legend

L1

Capacitor

T

123

CC – Compressor ContactorCO – Condensate Overflow SensorES – Emergency ShutdownHP – High Pressure SwitchLP – Low Pressure SwitchFD – Freeze De tection SensorF1 – Fuse

Fuse

Light Emitti ng Diode - GreenG

Light Emitti ng Diode - YellowY

Light Emitti ng Diode - RedR

SW1 – Push buttonSW2 – DIP package 8 positionRB – Blower RelayRV – Reversing Valve Coi lPGM – Phase Guard Moni torRH – Reheat Valve Coi l


SCT

SUC

PHW HW

MOTO

R

RS48

5

P7

ZONE

P9

ABC

STEP

PER

ANA

SPR

DHDI

V

NO

CO

M

K6

NO

CO

M

K5

C R L1 L1 L2 L2P1

2P1

0P5

P11

CR(-)(+) CR(-)(+) CR(-)(+)

P4P2

K1K2

K3

HA2

HA1

SGI

LOOP

PWM

VSSL

OSL

IP3

V+CRTXRX +5

P14

LLT

P1LA

TFL

OWLW

TEW

T

CT2

43

CT2

43

CT1

21

CT1

21

StatusG

DISC

HP1

6

P17

P18

P15



SW1


12345

ONOFF


P8 P6

CC2

EH1

Fact

ory

Faul t

ALG

ALMLSES ACC

c

Status


RV – K1

CC2

CC – K2

CC Hi – K3

Fan – K4

Alarm – K5

Acc – K6

ACC

no

ACC

nc


3A-Fu

se


LOG

HICCGCCFGFR

HPHPLP

FP2FP2FP1

REVREV

CFM

PWM

ECM PWM

Fact

ory


R R

CC

C

RS 48

5

EH2C

EH1C

CO

(+)(-)RCRS

485 E

xpFa

ctory

Com1

Com2

Config

G

G

G

YR

SW1 Test

FP1 – 15oF/30oF

JW2 - Alarm

P11

P5

P2 P1

P8

P7

P9

P6

P3

SW2

P13P4 FP2 – 15oF/30oF

RV – B/O

ACC – Dip 4



Fact

ory U

se


C

LP

FP1

F

CC

G

Y1

1

2

3

4

5

6

7

8

Off On

N/A

RS48

5 NET

LED3

LED2LED1

69


Engineering Guide Specifi cationsGeneralFurnish and install WaterFurnace Water Source Heat Pumps

as indicated on the plans. Equipment shall be completely

assembled, piped and internally wired. Capacities

and characteristics as listed in the schedule and the

specifi cations that follow. The reverse cycle heating/cooling

units shall be either suspended type with horizontal air inlet

and discharge or fl oor mounted type with horizontal air

inlet and vertical upfl ow air discharge. Units shall be AHRI/

ISO 13256-1 certifi ed and listed by a nationally recognized

safety-testing laboratory or agency, such as UL Testing

Laboratory. Each unit shall be computer run-tested at the

factory with conditioned water and operation verifi ed to

catalog data. Each unit shall be mounted on a pallet and

shipped in a corrugated box or stretch-wrapped. The

units shall be designed to operate with entering liquid

temperature between 20°F and 120°F [-6.7°C and 48.9°C].

Casing and CabinetThe cabinet shall be fabricated from heavy-gauge galvanized

steel and fi nished with optional corrosion-resistant powder

coating. This corrosion protection system shall meet the

stringent 1000 hour salt spray test per ASTM B117. The

interior shall be insulated with 1/2 in. thick, multi-density,

cleanable aluminum foil coated glass fi ber with edges sealed

or tucked under fl anges to prevent the introduction of glass

fi bers into the discharge air. Standard cabinet panel insulation

must meet NFPA 90A requirements, air erosion and mold

growth limits of UL-181, stringent fungal resistance test per

ASTM-C1071 and ASTM G21, and shall meet zero level bacteria

growth per ASTM G22. Unit insulation must meet these

stringent requirements or unit(s) will not be accepted.

One (horizontal) to two (vertical) blower and two

compressor compartment access panels shall be ‘lift-out’

removable with supply and return ductwork in place.

A duct collar shall be provided on the supply air opening.

Standard size 2 in. [5.1 cm] MERV 4 fi lters shall be provided

with each unit. Units shall have a return air fi lter rack that

is fi eld convertible from 1 in. [2.54 cm] to 2 in. [5.1 cm]. The

upfl ow vertical units shall have a removable insulated divider

panel between the air handling section and the compressor

section to minimize the transmission of compressor noise

and to permit operational service testing without air bypass.

Vertical units shall be supplied with left or right horizontal air

inlet and top vertical air discharge. Horizontal units shall be

supplied with left or right air inlet and side or end air discharge.

Option: AlpinePure MERV 13 Filter - A 2 in. thick [51 mm]

MERV 13 fi lter can help fulfi ll a credit under the LEED Rating

System. Its low initial resistance promotes low energy

consumption (0.21 in. w.g. @ 300 fpm) and provides nearly

twice the life of a standard fi lter (300 fpm vs. standard 500

fpm application).

Option: A Super Quiet Sound package shall include multi-

density full coverage compressor blanket.

Option: An internally mounted low pressure drop (high Cv) water solenoid valve shall be factory installed for use in

variable speed pumping applications.

Option: An internally mounted vortex shedding fl ow meter that uses MEMS technology with corrosion-resistant coating

on the electronic chip to directly measure fl uid fl ow. The

sensor is in direct contact with the fl uid and does not

require any moving parts. Flow measurement is reportable

through the BAS.

Option: An internally mounted 2-way modulating solenoid valve shall be factory installed and modulated

by the Advanced Aurora Controls platform. Modulating

percentage range is adjustable through the Aurora and the

valve position is tied to compressor speed.

Compressors shall be high-effi ciency permanent magnet

motor, scroll type designed for variable capacity heat pump

duty and mounted on vibration isolators. Compressors are

matched to high-effi ciency variable frequency drive (VFD)

that communicate via ModBus to the Advanced Aurora

Controls platform.

With vertical top/side discharge units, the condensate

connection shall be a 3/4 in. [19.1 mm] PVC FPT fi tting with

internally-trapped hose that can be routed to front or side

corner post locations. On horizontal and vertical bottom-

fl ow units, a stainless steel 7/8” tube connects to a ¾” MPT

push to connect fi tting. These units must be externally

trapped.

70


Engineering Guide Specifi cations cont.

Refrigerant CircuitAll units shall utilize the non-ozone depleting and low

global warming potential refrigerant R-410A. All units shall

contain a sealed refrigerant circuit including a hermetic

motor-compressor, bidirectional electronic expansion valve,

fi nned tube air-to-refrigerant heat exchanger, reversing

valve, brazed plate water-to-refrigerant heat exchanger, and

service ports.

Option: AlumiSeal electro-coated air coil.

The coaxial water-to-refrigerant heat exchanger shall be

designed for low water pressure drop and constructed of

a convoluted copper (cupronickel option) inner tube and

a steel outer tube. Refrigerant to air heat exchangers shall

utilize enhanced corrugated lanced aluminum fi ns and

rifl ed aluminum tube construction rated to withstand 600

psig (4135 kPa) refrigerant working pressure. Refrigerant

to water heat exchangers shall be of copper inner water

tube and steel refrigerant outer tube design, rated to

withstand 600 psig (4135 kPa) working refrigerant

pressure and 450 psig (3101 kPa) working water pressure.

The thermostatic expansion valve shall provide proper

superheat over the entire liquid temperature range with

minimal “hunting.” The valve shall operate bidirectionally

without the use of check valves.

Option: ThermaShield coated water-to-refrigerant heat exchanger, water lines and refrigerant suction lines

shall be insulated to prevent condensation at low liquid

temperatures below 50°F.

Option: AlpinePure hot gas bypass

Blower Motor and AssemblySupply fan shall be of single width, single inlet backward

curved airfoil centrifugal fan design often referred to as a

‘plenum fan’. The fan wheel shall be of Class II construction

with aluminum fan blades that are continuously welded to

the hub plate and end rim. The supply fan shall be a direct

drive fan mounted to the motor shaft. Fan assembly shall be

a slide out assembly for servicing and maintenance. All fan

assemblies shall be statically and dynamically balanced at

the factory. The fan motor shall be a high effi ciency totally

enclosed electronically commutated (EC) motor that is

speed controlled by the Aurora controller. The motor shall

include thermal overload protection and protect the motor

in the case of excessive motor temperatures. The variable

speed EC fan motor shall be soft starting and shall provide

12 cfm settings. The fan shall not operate in a state of surge

at any point within the modulation range.

ElectricalA control box shall be located within the unit compressor

compartment and shall contain a 75VA transformer, 24 volt

activated, 2 pole compressor contactor, terminal block for

thermostat wiring and solid-state controller for complete

unit operation. Electromechanical operation WILL NOT be

accepted. Units shall be name-plated for use with time delay

fuses or HACR circuit breakers. Unit controls shall be 24 volt

and provide heating or cooling as required by the remote

thermostat/sensor.

An Aurora microprocessor-based controller that interfaces

with a multi-stage electronic thermostat to monitor and

control unit operation shall be provided. The control shall

provide operational sequencing, blower speed control,

high and low pressure switch monitoring, freeze detection,

condensate overfl ow sensing, lockout mode control, LED

status and fault indicators, fault memory, fi eld selectable

options and accessory output. The control shall provide fault

retry three times before locking out to limit nuisance trips.

A detachable terminal block with screw terminals will

be provided for fi eld control wiring. All units shall have

knockouts for entrance of low and line voltage wiring. The

blower motor and control box shall be harness plug wired

for easy removal.

Option: An Aurora Unitary Protocol Converter (UPC) shall be included that communicates directly with the Aurora

Heat Pump Controls and allows access/control of a variety

of internal Aurora heat pump operations such as sensors,

relay operation, faults and other information. In turn, the

UPC shall convert the internal Aurora Modbus protocol to

BACnet MS/TP, or N2 protocols for communication over a

BAS system. Additional individual unit confi guration items

such as ECM fan speeds or freeze protection settings shall

be directly available over the BAS without the need for

access to the actual heat pump.

Option: Aurora UPC DDC communication protocols: LonWorks

PipingSupply and return water connections shall be FPT copper

fi ttings fi xed to the corner post, which eliminate the need

for backup pipe wrenches.

With vertical units, the condensate connection shall be a 3/4

in. [19.1 mm] PVC FPT fi tting with internally-trapped hose

that can be routed to front or side corner post locations.

In horizontal and bottom fl ow units, the condensate

connection shall be 7/8 in. stainless steel tube that connects

to unit provided 3/4 in. MPT push to connect.

71


Engineering Guide Specifi cations cont.

AccessoriesThermostat (field-installed)

A communicating auto-changeover electronic digital

thermostat shall be provided. The thermostat shall offer

variable speed heating and cooling staging with precise

temperature control. An OFF-HEAT-AUTO-COOL-EMERG

system switch, OFF-AUTO-INTERMITTENT blower switch,

and indicating display shall be provided. The thermostat

shall display in °F or °C. The thermostat shall provide real

time energy consumption data of the unit.

Color Touchscreen Thermostat (field-installed)

A color touchscreen communicating auto-changeover

electronic digital thermostat shall be provided. The

thermostat shall offer variable speed heating and cooling

staging with precise temperature control. An OFF-

HEAT-AUTO-COOL-EMERG system switch, OFF-AUTO-

INTERMITTENT blower switch, and indicating display shall

be provided. The thermostat shall display in °F or °C. The

thermostat shall provide real time and historical energy

consumption data of the unit.

Hose Kits – Ball Valves (field-installed)

A fl exible steel braid hose featuring Kevlar® reinforced

EPDM core with ANSI 302/304 stainless steel outer braid

and fi re rated materials per ASTM E 84-00 (NFPA 255,

ANSI/UL 723 & UBC 8-1). Ball valve at one end; swivel

connector with adapter at the other end (swivel to adapter

connection via fi ber or EPDM gasket). Swivel connection

provides union between heat pump and piping system. The

hoses feature brass fi ttings, stainless steel ferrules. A full

port ball valve shall be provided with integral P/T (pressure/

temperature) port on supply hose.

Specifi cations:

• Temperature range of 35°F [2°C] to 180°F [82°C].

• Max. working pressure of 400 psi [2757 kPa] for 1/2 in.

and 3/4 in. hose kits; max. working pressure of 350 psi

[kPa] for 1 in. and 1-1/4 in. hose kits.

Hose Kits – Automatic Balancing and Ball Valves(field-installed)A flexible steel braid hose featuring Kevlar® reinforced EPDM

core with ANSI 302/304 stainless steel outer braid and fire

rated materials per ASTM E 84-00 (NFPA 255, ANSI/UL

723 & UBC 8-1). Ball valve at one end; swivel connector with

adapter at the other end (swivel to adapter connection via

fiber or EPDM gasket). Swivel connection provides union

between heat pump and piping system. The hoses feature

brass fittings, stainless steel ferrules. A full port ball valve

shall be provided with integral P/T (pressure/temperature)

port on supply hose and automatic balancing valve with

integral P/T ports and full port ball valve on return hose.

Specifi cations:

• Temperature range of 35°F [2°C] to 180°F [82°C]



[2413 kPa] for 1 in. and 1-1/4 in. hose kits

• Minimum burst pressure of four times working pressure

Hose Kits – Automatic Balancing and Ball Valves with ‘Y’ strainer (field-installed)A fl exible steel braid hose featuring Kevlar® reinforced

EPDM core with ANSI 302/304 stainless steel outer braid

and fi re rated materials per ASTM E 84-00 (NFPA 255,

ANSI/UL 723 & UBC 8-1). Ball valve at one end; swivel

connector with adapter at the other end (swivel to adapter

connection via fi ber or EPDM gasket). Swivel connection

provides union between heat pump and piping system.

The hoses feature brass fi ttings, stainless steel ferrules. A

“y” strainer is provided on one end for fl uid straining and

integral “blowdown” valve. A full port ball valve shall be

provided with integral P/T (pressure/temperature) port on

supply hose and automatic balancing valve with integral P/T

ports and full port ball valve on return hose.

Specifi cations:

• Temperature range of 35°F [2°C] to 180°F [82°C]



[2413 kPa] for 1 in. and 1-1/4 in. hose kits

• Minimum burst pressure of four times working pressure

72


73


Revision Guide

Pages: Description: Date: By:

46, 50 Add weights table, update electrical data 21 Sept. 2018 JM

All Document Creation 21 Nov., 2017 JM

Product: Versatec Variable Speed Commercial Series

Type: Geothermal/Water Source Heat Pump

Size: 10-15 Tons

Document: Specification Catalog

©2018 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development

and reserves the right to change design and specifi cations without notice.

Manufactured by

WaterFurnace International, Inc.

9000 Conservation Way

Fort Wayne, IN 46809

www.waterfurnace.com

SC2751AU 12/18

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