high efficiency, extended range horizontal water source ......57000 16625 12.6 3.7 42500 12396 2.8...

®

Catalog C: 1157-7

High Efficiency, Extended RangeHorizontal Water Source Heat PumpsUnit Sizes 019 to 060

of 24 / Catalog 1157

McQuay high efficiency, extended rangehorizontal water source heat pump unitsFeatures:Size 019 thru 060

� High efficiency

� High cfm/ton performance

� Performance rated with ARI Standard 330

� Safety agency listed with CUL

� Large panels for accessibility to compressor

and fan sections

� Removable fan motor/wheel assembly

� Multi-speed fan motor with terminal strip

� Low unit profile

� Circuit board control system for “clean” wiring

� Freezestat protected water circuit

� Optional extended range heating operation

� Factory tested

. . . and featuring Mark IV/AC controls.

� Built-in night setback, load shed and

shutdown

� Built-in 2-hour override from stat

� Compressor short cycle protection

� Random start

� Timed delay RV operation

� LED readout

� Pump restart signal

� Condensate overflow protection

■ Remote reset of automatic lockouts

■ Fault retry to minimize nuisance trips

� Brownout protection

� Automatic defrost cycle

� Optional boilerless system control

©2002 McQuay International

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NU

FAC

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CERTIFIED TO ARI AS COMPLYIN

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ITH

ISOSTANDARD 13256-1

HEAT PUMPS

WA

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RTO

AIR BRINETO

AIR

“McQuay” is a registered trademark of McQuay International.©2005 McQuay International. All rights reserved throughout the world.

The information in this catalog supersedes and replaces previous (catalogues)(bulletins) with regards to McQuay Terminal Air Conditioning products. Illustrations coverthe general appearance of McQuay products at the time of publication and AAF-McQuay reserves the right to make changes in design and construction at anytimewithout notice.

The following are trademarks or registered trademarks of their respective companies: LONMARK, LonTalk, and LONWORKS from Echelon Corporation;MicroTech and MicroTech 2000 from McQuay International.

MicroTech 2000 unit controllers are LONMARK certified.

Catalog 1157 / of 24

Contents

NOTE: For Illustration purposes only. Not all options available with all models.Please consult AAF-McQuay Sales Representative for specific availability.

AAF-McQuay WSHP Product Nomenclature

W CMG 1 009 E Z

Product CategoryW = WSHP

Product IdentifierSee box below

Design Series1 = A Design2 = B Design3 = C Design4 = D Design5 = E Design

Nominal Capacity019 = 19,000024 = 24,000030 = 30,000036 = 36,000042 = 42,000048 = 48,000060 = 60,000

Coil Options(None)

VoltageE = 208/230-60-1F = 208/230-60-3J = 265-60-1K = 460-60-3L = 575-60-3

McQuay WSHP Product IdentifiersCMG = Ceiling mtd./Mark IV/Geothermal

Model nomenclature

General ........................................................................... 2Model nomenclature ...................................................... 3ARI performance data ................................................... 4Electrical data ................................................................ 4CMG unit application ..................................................... 5Design features ........................................................... 5-6Control features .......................................................... 7-8 Mark IV ...................................................................... 8Field installed accessories ............................................ 9Capacity data ..........................................................10-16 Size 019 at 600 cfm ................................................ 10 Size 024 at 800 cfm ................................................ 11 Size 030 at 1000 cfm .............................................. 12 Size 036 at 1200 cfm .............................................. 13

Size 042 at 1400 cfm ............................................. 14 Size 0048 at 1600 cfm ........................................... 15 Size 060 at 2000 cfm ............................................. 16Operating limits ........................................................... 17Physical data .............................................................. 17Fan performance data ................................................ 17Dimensional data ........................................................ 18 Filter rack/return air duct collar ............................. 18 Hanger bracket detail ............................................ 18Control connection diagrams ..................................... 19Typical wiring diagram ................................................ 20 Mark IV ................................................................... 20Engineering guide specifications ............................... 21Field Installed Accessories ......................................... 22


UNIT SIZEPOWER COMPRESSOR FAN MOTOR FAN MOTOR MIN. MIN. CKT. MAX. FUSE

VOLT ➀ Hz PHASE RLA LRA FLA LRA VOLTS AMPACITY SIZE ➁

019208-230 60 1 7.6 42.0 1.20 1.72 197 10.7 15.0

265 60 1 6.7 35.0 0.90 1.24 240 9.8 15.0208-230 60 1 11.5 60.0 1.20 1.72 197 15.6 25.0

024265 60 1 10.3 58.0 0.90 1.24 240 13.8 20.0

208-230 60 3 8.7 58.0 1.20 1.72 197 12.1 20.0460 60 3 3.8 30.0 0.60 0.78 416 5.4 15.0

208-230 60 1 13.3 61.0 4.10 5.90 197 20.0 30.0

030265 60 1 10.9 58.0 2.60 4.18 240 16.2 25.0

208-230 60 3 8.5 55.0 4.10 5.90 197 14.0 20.0460 60 3 4.0 28.0 1.50 2.84 416 6.5 15.0

208-230 60 1 16.0 82.0 4.10 5.90 197 23.4 35.0

036265 60 1 13.6 64.0 2.60 4.18 240 19.6 30.0

208-230 60 3 10.4 65.0 4.10 5.90 197 16.4 25.0460 60 3 4.9 33.0 1.50 2.84 416 7.6 15.0

208-230 60 1 19.0 87.0 3.9 7.0 197 27.7 45.0042 208-230 60 3 14.1 110.0 3.9 7.0 197 21.5 35.0

460 60 3 6.4 54.0 2.30 3.90 416 10.3 15.0208-230 60 1 17.9 87.0 3.9 7.0 197 26.3 40.0

048208-230 60 3 14.1 110.0 3.9 7.0 197 21.5 35.0

460 60 3 7.1 54.0 1.6 3.90 416 10.5 15.0575 60 3 5.9 52.0 2.20 5.00 520 9.6 15.0

208-230 60 1 28.2 135.0 3.9 7.0 197 39.2 60.0

060208-230 60 3 16.7 137.0 3.9 7.0 197 24.8 40.0

460 60 3 9.6 69.0 1.6 3.90 416 13.6 20.0575 60 3 8.3 59.0 2.20 5.00 520 12.6 20.0

60 cycle ratings, extended range units — Rated in accordance with ISO standard 13256-1Unit Air Flow Water Flow

VoltageCooling Heating

Size cfm l/s gpm l/s Btu/hr Watts EER COP Btu/hr Watts COP

019 600 283 5.0 0.32208-230/60/1

19800 5775 14.2 4.1 14500 4229 3.0265/60/1208-230/60/1

024 800 378 6.0 0.41265/60/1

26200 7642 14.1 4.1 18400 5367 3.0208-230/60/3460/60/3

208-230/60/1

030 1000 472 7.5 0.47265/60/1

31600 9217 14.4 4.2 21500 6271 3.0208-230/60/3460/60/3

208-230/60/1

036 1200 566 9.0 0.57265/60/1

36200 10558 13.4 3.9 25400 7408 2.9208-230/60/3460/60/3

208-230/60/1042 1400 661 10.5 0.66 208-230/60/3 41000 11958 13.4 3.9 27600 8050 2.9

460/60/3208-230/60/1

048 1600 755 12.0 0.76208-230/60/3

47000 13708 13.0 3.8 34000 9917 3.0460/60/3575/60/3

208-230/60/1

060 2000 944 15.0 0.95208-230/60/3

57000 16625 12.6 3.7 42500 12396 2.8460/60/3575/60/3

Electrical data

ARI performance data

ISO 13256-1 ratings include loop loss penalties.

Test fluid was 15% by weight sodium chloride in water.

Cooling capacity is based on 80oF db, 67oF wb (27/19oC) entering air temperature and 77oF (25oC) entering, 87oF (31oC) leaving fluid temperature.

Heating capacity is based on 70oF (21oC) entering air temperature and 32oF (0oC) entering fluid temperature.

Notes:➀ 208-230 volt units (60 Hz) are shipped for 208 volt operation. For 230 volt operation, the tap on the 24 volt transformer must be changed from the 208 volt

tap to the 230 volt tap.➁ Maximum time delay (Class 5) fuse or HACR type circuit breaker: values are amps. HACR circuit breakers may only be available for 208 and 230

volt single phase operation.


The new McQuay International High Efficiency WaterSource Heat Pump line consists of standard range unitsaccommodating entering water temperatures between 20oFand 120oF (-7oC and 49oC) in cooling. The extended rangesystem has advantages in closed loop applications. Theability to operate at reduced water temperatures allows theloop temperature to fall to 20oF (-7oC) before supplemental(boiler) heat has to be added to the loop, thus taking fulladvantage of the heat available in the water loop obtainedfrom internal heat gains. The result is reduced boiler operationwhich means reduced energy consumption. This expansionin allowable entering water temperatures permits greaterflexibility in system design.

These impressive temperature allowances also make the

line ideal for use in earth-coupled systems. Geothermal orearth-coupled heat pump systems reside on the cutting edgein current HVAC technology. These systems comply with thetrends toward increasingly higher efficiencies andconscientious environmental practices in the heating andcooling industry, by utilizing the natural properties of the earthto provide heating and cooling to a building. In geothermalsystems, heat addition and rejection take place below theground, inside hundreds of feet of high density polyethylenepipe, known as a ground loop, which eliminates the need for aboiler and cooling tower. Fluid circulates between the sealedground loop and the geothermal units. The geothermal heatpump units then amplify and direct conditioned air to thedesired location.

CMG high efficiency horizontal unit application

Design features - Unit sizes 019 thru 060Three unique cabinet sizes make up our 11⁄2 through 5

ton horizontal high efficiency extended range heat pumpproduct line. The result is a consistent cabinet shape withthe lowest possible profile. The consistent shape makeslayout simple; the water, condensate and duct connectionsare in similar locations.

The cabinet is constructed of unpainted G-60 galvanizedsteel. Large panels are provided for access to the fan/motorcompartment and the compressor/control compartment. Theinteriors of the top and side panels and the bottom of theunit are covered with 1⁄2" (13 mm) thick, 11⁄2 lb. (681g) density,coated glass fiber insulation.

The filter is supported by factory mounted brackets whichallow for face removal. Unit sizes 019 through 060 have a 1"(25 mm) thick throwaway filter mounted in a combination filterrack and return air duct collar, thus eliminating field mountedbrackets. The filters can be removed from either side or fromthe bottom.

The water and condensate connections protrude throughthe outside of the cabinet. The water connections areFPT type for easy connection to flexible hoses. The largecondensate connection assures troublefree condensateremoval.

Control box

Air to refrigerant coil

Electrical access panelCompressor

Coaxial coil

Fan/motor access panel

Blower assembly


For additional safety, unit sizes 024 and larger have a 7 psi(48 kPa) low pressure switch to protect the compressor fromlow refrigerant charge. The low setting prevents nuisance tripsbut still provides adequate safety.

Fan section

The fan section includes the fan housing, fan wheel, fanmotorand drain pan. The fan section is separated from thecompressor section with an insulated divider panel formaximum sound attenuation. The large door provides serviceaccess to the fan motor.

The drain pan is insulated from the cabinet, painted forcorrosion protection and has ample height to allow for self-priming of the condensate trap.

The fan motor is a multi-speed, PSC type with integralmounting brackets and thermal overload protection. The motoris isolated from the fan housing for minimum vibrationtransmission. Units have a terminal strip on the motor for simplemotor speed change without going back to the controlbox. All the fan/motor assemblies have a removable orificering on the housing to accommodate motor and fan wheelremoval without disconnecting the ductwork. The fan housingprotrudes through the cabinet allowing adequate material forconnection of a flexible duct.

For maximum flexibility, the fan discharge can exit from theend or from the side of the unit. This can be done at the factoryor can be field converted from one to the other beforeinstallation.

Mark IV/AC control systemThe Mark IV/AC control system is a microprocessor-based

control board conveniently located in the unit control box foraccessibility. A 14 pin low voltage terminal strip provides allthe necessary terminals for field connections. LED’s are locatedin front for quick inspection. The board is 24 volt AC to thethermostat.

The Mark IV/AC control system has the following oper-atingfeatures (assumes cycle fan operation-not continuous):

� Start-up — The unit will not operate until all the inputs andsafety controls are checked for normal conditions.

The electrical components are located in the compressorsection of the unit. Holes are provided on the cabinet tofacilitate main power and low voltage control wiring throughseparate holes. All wiring connections are made internal tothe cabinet for maximum safety. Each unit is rated to accepttime delay fuses for branch circuit overcurrent protection.Single phase units are also rated for use with HACR circuitbreakers.

The control box is accessible through a panel. The controlbox houses the major operating electrical controls includingthe control circuit board, transformer, compressor relay andfan relay. Each component is accessible for service orreplacement. The low voltage circuit is protected by aresettable circuit breaker.

The unique Mark IV/AC control system is standard in allGeothermal units. Each control board receives power froma large capacity 50 VA transformer. The control board has abuilt-in terminal strip for low voltage control wiringconnections. The Mark IV/AC control board provides thebasic control functions along with numerous advancedfeatures.

Refrigeration system

The refrigeration system includes a hermetic compressor,reversing valve, water-to-refrigerant heat exchanger, thermalexpansion valve, airside coil, high/low side refrigerant accessvalves, safety controls and insulated refrigerant tubing. Thelarge panel allows for access to the compressor, reversingvalve and safety controls.

The compressor is mounted close to the access panelfor maximum serviceability and it is isolated from the bottompanel with rubber isolators. The compressor junction box isalways located toward the access panel.

The reversing valve is energized in the heating mode andwill “fail-safe” to the cooling mode which is the predominantmode of operation.

Units have a coaxial heat exchanger with a copper innertube and a steel outer tube and are designed for maximumheat transfer at normal and low water flow rates withminimum pressure drop. The air coil is a large face area coilwith copper tubes and aluminum fins. The fins are lancedand the tubes have finned edges on the inside to enhanceheat transfer capabilities.

Safety controls include low suction temperature (freeze-stat) and high pressure switches to lock out compressoroperation at extreme conditions. The safety controls can onlybe reset from the main disconnect switch and not from thewall thermostat.

Fan Section

Straight Discharge

End Discharge

Design features


Control features� Cooling mode — On a call for cooling, the compressor

and fan will start 0 to 32 seconds later. When satisfied,the compressor and fan shut off immediately.

� Heating Mode — On a call for heating, the reversing valveis energized after 60 seconds and the compressor andfan start immediately. When satisfied, the compressorand fan shut off immediately, the reversing valve is de-energized 60 seconds later to eliminate “swish” noiseand to insure that the compressor always starts up atequalized pressure.

� Short Cycle Protection & Random Start — Each timethe compressor stops, a new random compressor startdelay time between 180 and 212 seconds is generatedeach time power is applied to the unit. This preventscompressor short cycling and assures units will not startat the same time after coming back from an unoccupiedcycle.

� Unoccupied Mode — A simple “grounded” signal, nopower source required, puts the unit into the unoccupiedmode for night setback operation. The fan shuts off andthe unit is put under control from the setback bulb of thethermostat; the day heating thermostat control andcooling is locked out. A unique LED status is generatedfor indication of the unoccupied mode. On a call forheating, the fan and the compressor will start after 60seconds.

� Override Mode — A switch on the deluxe thermostatcan be activated during the unoccupied mode to put theunit back into the occupied mode for two hours for after-hours heating or cooling.

� Pump Restart — A signal from the Mark IV/AC board toour Loop Control Panel will restart the water circulatingloop pump when the compressor is energized. The signalcan be “daisy chained” between 200 units.

� Load Shed — Again, a simple grounded signal puts theunit into the load shed mode. The compressor shuts offand the fan will start on a call for heating and cooling. Aunique LED status is generated for indication of the loadshed mode.

� Brownout Protection — The Mark IV/AC board measuresthe input voltage and will suspend compressor and fanoperation if the voltage falls below 80% of the normalline voltage. A unique LED status is generated and outputis available to a “fault” LED at the thermostat.

� Unit Shutdown — Again, a simple grounded signal putsthe unit into the unit shutdown mode.Compressor and fan operations are suspended. A uniqueLED status is generated and an output signal is madeavailable for connection to a “fault” LED at the thermostat.

� Condensate Overflow Protection — The Mark IV/ACboard incorporates a liquid sensor at the top of the drainpan. Sensing water, cooling operation is suspended. Aunique LED status is generated and output is available toa “fault” LED at the thermostat. Heating operation is notsuspended.

� Remote Reset of Automatic Lockouts — The RemoteReset feature provides the means to remotely reset auto-matic lockouts generated by high-pressure and/or low-temperature (in heating) faults. When the Mark IV boardis in automatic lockout due to one of these faults, andthe cause of the fault condition has been alleviated, en-ergizing the O-terminal for 10 seconds or more will forcethe Mark IV board to clear the lockout. A unit power cycle

The Mark IV/AC control system allows for the followingoptional field installed controls and accessories:

� Boilerless System Kit — Eliminates the need for a boil-erin the system water loop. The boilerless system controlboardsenses the entering water temperature to the unit and locksout compressor heating operation if the water temperaturefalls below the adjustable setpoint. Contacts are providedto energize a field supplied electric heater downstream ofthe unit on a call for heating.

� Motorized Valve — Used for variable pumping appli-cations. The valve is wired in the compressor circuit andthe valve is piped in the return water line from the unit. Thevalve opens when the compressor is on and closes whenthe compressor is off. Valve is rated for 300 psig (2070 kPa).

can also be used to clear an automatic lockout if the condi-tions causing the fault have been alleviated.

� Fault Retry To Minimize Nuisance Trips — The Fault Retryfeature helps to minimize nuisance trips of automatic lock-outs caused by high-pressure and/or low-temperature (inheating) faults. This feature clears faults the first two timesthey occur within a 24-hour period and triggers an auto-matic lockout on the 3rd fault. The retry count is reset to zeroevery 24 hours.

NOTE: Most unit fault conditions are the result of operating theequipment outside the unit specifications.

� Safety Control — The Mark IV/AC board receives separateinput signals from the refrigerant high pressure switch andthe low suction temperature (freezestat) switch. If a highpressure situation occurs while in the heating mode,compressor operation is suspended. In a low temperaturesituation, the unit goes into a defrost cycle where the unit isput into cooling operation for 60 seconds until the coaxialheat exchanger is free of ice. If a low temperature situationoccurs while in the cooling mode, the low temperatureswitch will cycle unit OFF and ON, as the fault is related toair flow. Each switch generates its own unique LED statusand output is available to a “fault” LED at the thermostat ifeither situation exists.

IndicationLED Fault

Yellow Green Red Output Normal Mode Off On Off Off High Pressure Fault Off On Flash On Low Temperature Fault* Flash Off Off On Condensate Overflow** On Dim Off On Brownout Off Flash Off On Load Shed Off Off On Off Unoccupied Mode On On Off Off Unit Shutdown Off Flash Off On

* Only in the heating mode ** Only in the cooling mode

Mark IV/AC LED & fault outputs


Mark IV/AC Interface

Outputs

Heat Pump Loop Pumps

Condenser Loop Pumps

Heat Rejection Stages

Mod. Heat Rejection

Heat Addition Stages

Mod. Heat Addition

Additional Unoccupied

Schedules — 6 total

Inputs

Heat Pump Supply Loop Temp

Heat Pump Loop Flow Switch

Outside Air Temp

Optional Temperature Sensors

Optional Condenser Loop Flow Sw

Optional Condenser Loop Temp

} Pump RestartUnoccupiedUnit Shutdown

Optional Load Shed Input

OptionalPersonalComputer

Deluxe AutoChangeover

Wallstat

Deluxe AutoChangeover

Wallstat

Mark IV/ACBoard

Loop WaterController

Mark IV/ACBoard

O W2 G W1Y1 R A

F P C U E L F P C U E L

PumpStart

Pump Start

UnoccupiedSchedule

O W2 G W1Y1 R A

UnitShutdown

Mark IV/AC Board TerminalsP = Pump RestartC = CommonU = UnoccupiedE = Unit ShutdownL = Load ShedF = Fault Relay

ThermostatO = 2-Hour OverrideW2 = Net Setback HeatingG = FanW1 = Day HeatingY1 = CoolingR = Power — AC VoltsA = Attitude Fault Signal to LED

Loop Water ControllerThe Loop Water Controller (LWC) is a stand-alone, pre-

programmed, pretested, microprocessor-based controllerproviding control of the heat rejection, heat addition stagesand the water circulating pumps for control of a water sourceheat pump system through solid-state output relays.

The controller has a keypad/display to view all statusconditions, temperatures, setpoints and monitor/alarmconditions. The display is two lines by sixteen columns in asupertwist LCD format.

The LWC can be applied to control a traditional single loopsystem; closed circuit evaporative cooler, boiler, primary pumpand standby pump; or a two-loop system with the heat pumploop having a boiler, primary pump and standby pumpseparated by a water-to-water heat exchanger to a condenserwater loop with an open cooling tower, primary (stage 1) pumpand a standby (stage 2) pump. The pumps can be operatedas “auto” or “manual” lead-lag. Pump sequencing allows thestandby pump to automatically come on upon failure of thelead pump as indicated by a flow switch.

The LWC controls heating and cooling stages from the heatpump loop supply temperature and from the outdoor airtemperature for reset of the heat addition setpoint, if desired.Other locations can be temperature monitored: heat pumploop return temperature, entering and leaving towertemperatures, entering and leaving boiler temperatures, andstorage tank temperature.

Clock schedule outputs are built-in to (1) time control theheat pump circulating pump for shutdown at night (can berestarted if outdoor air temperature falls) and (2) provideprogrammable time schedules for heat pump unit occupied/unoccupied operation. A maximum of six time clock scheduleoutputs are available.

Two LWC models are available. LWC-16 and LWC-24provide 9 and 17 configurable outputs, respectively, choosingbetween heat rejection (cooling) stages, heat addition (heating)stages and time clock schedules. Each heating and coolingoutput has individual on and off (differential) setpointadjustment capability. Modulating heating and cooling outputsignals are available to control tower bypass valve and two-way or three-way boiler heat addition valves.

Safety alarms include visual and audible notification of alow water temperature, high water temperature, or no flowcondition. Upon activation of any alarm, the LWC has contactsto send out an emergency shutdown signal. A remote alarmpanel is available for alarm notification at a remote location.

The LWC interfaces with Mark IV/AC controlled heat pumpunits for a low cost control system. The Mark IV/AC boardcan receive occupied/unoccupied time clock scheduleoutputs and an emergency shutdown signal due to an alarmcondition. The LWC can receive a signal (pump restart) fromthe Mark IV/AC board to energize and override themain circulating pump, if it is scheduled off, whenever acompressor operates from a call for night setback heat orfrom a call for heating or cooling during the two-hour overridecycle. Simple “daisy chain” wiring is required between MarkIV/AC board terminals.

Optional Monitor software allows the operator to monitorand control setpoints of the LWC at an IBM PC by directconnecting or through a phone line. Includes system graphics.

Additional features include built-in test mode to simulateall control modes, precool cycle to start heat rejection earlierfor undersized boilers, preheat cycle to start heat additionearlier for undersized towers, keypad password protection,and holiday schedules.


Wall mounted thermostats are available for Mark IV/AC unitsin automatic or manual changeover styles. All include a fanswitch for constant “on” operation or “automatic” for cycleoperation with the compressor. All thermostats are 24-volttype and have dual Fahrenheit and Celsius temperaturesetpoint scales. Thermostat accessories include universalguard and locking cover. Individual thermostats include:

Standard Manual Changeover Single setpoint lever for one-stage heating and cooling.

System “heat-off-cool” switch and fan “on-off” switch.

Standard Manual & Automatic Changeover Dual setpoint levers for one-stage or two-stage heating or

cooling operation. System “heat-off-auto-cool” switch andfan “on-auto” switch. Includes LED for “fault.”

Deluxe Automatic ChangeoverDual setpoint levers for one-stage or two-stage heating or

cooling, with night setback operation. Night setback tempera-ture setpoint is 12oF (-6.6oC) below daytime heat setting. Sys-tem “off-auto” switch and fan “on-auto” switch. Overrideswitch (spring loaded fan switch) puts unit back into occu-pied daytime heat and cool setpoints. Includes LED for “fault.”

Programmable Micro-electronic Manual &Automatic Changeover

This thermostat can be wired for either one-stage or two-stage unit operation, and is complete and ready for installa-tion. Liquid Crystal display (LCD) is backlit and easy to read.Selectable F or C temperature display, automatic or manualchangeover as well. Setpoints= are permanently held inmemory (no batteries used) and retained during power out-ages. Display updates every minute. Features include 7-dayprogrammability, four settings per day, keyboard lock code,time delay and adjustable deadband. System “heat-auto-cool-off” and fan “on-auto” switches.

Non-programmable Electronic Manual &Automatic Changeover

This thermostat can be wired for either one-stage or two-stage unit operation, and is complete and ready for installa-tion. Liquid Crystal display (LCD) is backlit and easy to read.Selectable F or C temperature display, automatic or manualchangeover as well. Setpoints are permanently held inmemory (no batteries used) and retained during power out-ages. Display updates every minute.

Field installed accessories

COOLING HEATINGEWT GPM WPD

EA LWT TOT SEN kW THR EA TOT kW THA

Extended Range Units Only

List of Abbreviations in Capacity Data TablesEWT = Entering water temperature, ˚FGPM = Water flow, gallons per minuteWPD = Water pressure drop, ft. of waterEA = Entering air temperature, ˚F (db/wb)LWT = Leaving water temperature, ˚FTOT = Total net cooling & heating capacity, Btu/hrSEN = Sensible cooling capacity, Btu/hrkW = Total unit power input, kWTHR = Total heat of rejection, Btu/hrTHA = Total heat of absorption, Btu/hrLWT = THR � (500 x gpm) + EWTTHA = TOT – (kW x 3413)

20

30

40

55

77

85

90

100

110

120


Capacity dataUnit size 019 at 600 cfm English units

75/63 41 24100 16000 0.600 26100 60 12880 1.207 875980/67 41 24000 15699 0.601 26100 70 13250 1.323 873085/71 41 24399 15599 0.597 26399 80 13640 1.446 871075/63 33 24300 16100 0.570 26300 60 13169 1.210 903980/67 33 24300 15800 0.531 26199 70 13539 1.327 900985/71 33 24600 15699 0.567 26500 80 13929 1.452 898075/63 29 24699 16300 0.533 26500 60 13410 1.213 927980/67 29 24600 15900 0.533 26399 70 13740 1.330 919985/71 29 24899 15800 0.531 26699 80 14140 1.456 916975/63 51 23100 15599 0.720 25600 60 14160 1.221 999080/67 51 23199 15300 0.720 25600 70 14509 1.342 991985/71 51 23500 15300 0.717 26000 80 14929 1473 990075/63 42 23399 15699 0.685 25800 60 14490 1.225 1031080/67 42 23399 15500 0.685 25800 70 14839 1.348 1024085/71 42 23800 15400 0.683 26100 80 15269 1.480 1022075/63 39 23800 15900 0.644 25899 60 14720 1.227 1052980/67 39 23699 15599 0.644 25899 70 15080 1.352 1046085/71 39 24100 15500 0.642 26300 80 15509 1.486 1043975/63 60 22199 15099 0.851 25100 60 15419 1.236 1119980/67 60 22300 15000 0.851 25199 70 15789 1.365 1113085/71 61 22699 15000 0.848 25600 80 16239 1.503 1110975/63 52 22500 15300 0.812 25300 60 15800 1.241 1156080/67 52 22500 15099 0.811 25300 70 16230 1.373 1153985/71 52 22899 15099 0.810 25699 80 16640 1.513 1147075/63 48 22800 15500 0.767 25399 60 16059 1.245 1181080/67 48 22800 15199 0.767 25399 70 16500 1.378 1180085/71 49 23199 15199 0.765 25899 80 16920 1.520 1173075/63 75 20699 14599 1.064 24399 60 17350 1.264 1302980/67 75 20899 14500 1.064 24600 70 17820 1.405 1301985/71 75 21399 14599 1.063 25100 80 18269 1.555 1296075/63 67 21000 14699 1.019 24500 60 17809 1.272 1347080/67 67 21199 14599 1.019 24699 70 18280 1.416 1344985/7l 67 21699 14599 1.020 25199 80 18750 1.569 1339075/63 63 21399 14800 0.969 24699 60 18129 1.277 1376980/67 63 21500 14699 0.969 24800 70 18609 1.423 1375985/71 63 21899 14800 0.969 25199 80 19079 1.578 1368975/63 96 18699 13699 1.404 23500 60 20329 1.319 1583080/67 96 18899 13699 1.406 23699 70 20820 1.477 1577985/71 97 19500 13900 1.410 24300 80 21410 1.650 1576975/63 88 19000 13800 1.351 23600 60 20899 1.330 1635980/67 88 19199 13800 1.354 23899 70 21399 1.493 1630985/71 89 19800 14000 1.360 24399 80 22000 1.670 1630975/63 85 19300 14000 1.295 23699 60 21309 1.339 1673980/67 85 19600 14000 1.298 24000 70 21820 1.504 1667985/71 85 20100 14099 1.303 24600 80 22429 1.684 1667975/63 104 17899 13400 1.532 23100 60 21420 1.342 1683980/67 104 18199 13400 1.536 23399 70 21940 1.508 1678985/71 104 18800 13599 1.543 24100 80 22550 1.689 1678975/63 96 18199 13500 1.478 23300 60 22039 1.355 1741080/67 96 18500 13599 1.481 23600 70 22570 1.526 1735985/71 97 19100 13800 1.491 24199 80 23199 1.712 1735975/63 93 18600 13599 1.420 23399 60 22469 1.366 1780980/67 93 18800 13699 1.424 23699 70 23070 1.541 1780985/71 93 19399 13800 1.432 24300 80 23660 1.728 1776075/63 108 17399 13199 1.613 22899 60 22109 1.357 1748080/67 109 17699 13300 1.618 23199 70 22640 1.528 1742985/71 109 18399 13500 1.627 23899 80 23280 1.714 1742975/63 101 17699 13300 1.558 23101 60 22750 1.372 1807080/67 101 18000 13400 1.562 23399 70 23350 1.549 1807085/71 101 18699 13599 1.574 24000 80 23949 1.739 1801975/63 98 18100 13400 1.500 23199 60 23199 1.383 1848080/67 98 18399 13500 1.504 23500 70 23820 1.564 1848085/71 98 19000 13699 1.514 24100 80 24429 1.757 1842975/63 118 16500 12800 1.777 2250080/67 118 16800 12900 1.785 2289985/71 119 17500 13300 1.799 2369975/63 111 16800 12900 1.720 2269980/67 111 17199 13099 1.727 2310085/71 111 17800 13300 1.743 2380075/63 108 17100 13099 1.660 2280080/67 108 17399 13199 1.666 2310085/71 108 18100 13500 1.682 2389975/63 128 15500 12400 1.941 2210080/67 128 15900 12599 1.951 2260085/71 129 16699 12900 1.971 2339975/63 121 15900 12500 1.881 2230080/67 121 16199 12699 1.892 2269985/71 121 17000 13099 1.914 2350075/63 117 16199 12699 1.822 2239980/67 118 16600 12900 1.832 2280085/71 118 17300 13099 1.852 2360075/63 137 14500 12000 2.102 2169980/67 138 15000 12300 2.117 2219985/71 139 15800 12699 2.144 2310075/63 130 4900 12099 2.042 2189980/67 131 15300 12400 2.057 2230085/71 131 16100 12699 2.085 2319975/63 127 15199 12300 1.983 2200080/67 128 15699 12500 1.997 2250085/71 128 16399 12900 2.023 23300

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

2.5 0.8

4.2 3.3

6.0 8.6

20

30

40

55

77

85

90

100

110

120






Unit size 024 at 800 cfm English units

75/63 47 35299 22800 1.398 40100 60 15589 1.640 996080/67 47 35399 22300 1.399 40200 70 15529 1.708 966985/71 47 36000 22100 1.403 40799 80 15490 1.778 939075/63 36 36500 23300 1.356 41100 60 16199 1.649 1053980/67 36 36500 22600 1.356 41100 70 16170 1.720 1025985/71 37 37000 22500 1.359 41600 80 16140 1.793 998075/63 32 36500 23300 1.359 41100 60 16510 1.654 1083080/67 32 36399 22699 1.359 41100 70 16480 1.726 1055085/71 32 37000 22500 1.363 41600 80 16449 1.800 1027975/63 56 33600 22000 1.466 38600 60 17379 1.669 1165080/67 56 33799 21699 1.468 38799 70 17390 1.744 1140085/71 56 34500 21500 1.476 39500 80 17420 1.824 1116075/63 46 34799 22500 1.416 39600 60 18329 1.685 1253980/67 46 34899 22100 1.417 39700 70 18350 1.765 1230085/71 46 35500 22000 1.422 40399 80 18399 1.849 1205075/63 41 34700 22500 1.419 39600 60 18780 1.694 1297080/67 41 34899 22100 1.420 39700 70 18820 1.775 1273085/71 42 35500 22000 1.425 40399 80 18870 1.862 1248075/63 65 31800 21300 1.546 37100 60 19420 1.706 1356080/67 65 32100 21000 1.550 37399 70 19489 1.790 1334985/71 66 32899 21000 1.561 38299 80 19579 1.881 1313075/63 55 33000 21800 1.490 38100 60 20690 1.731 1475080/67 55 33299 21399 1.492 38399 70 20780 1.821 1452985/71 56 34000 21399 1.500 39100 80 20899 1.919 1431075/63 51 33000 21800 1.492 38100 60 21300 1.743 1531080/67 51 33200 21399 1.494 38299 70 21399 1.837 1509985/71 51 34000 21399 1.503 39100 80 21530 1.938 1488075/63 78 29119 20100 1.682 34899 60 22780 1.775 1667980/67 79 29600 20000 1.690 35399 70 22940 1.877 1650085/71 79 30600 20100 1.707 36399 80 23129 1.990 1630075/63 69 30300 20600 1.619 35899 60 24530 1.816 1830080/67 70 30699 20399 1.625 36299 70 24730 1.929 1810985/71 70 31600 20500 1.639 37200 80 24960 2.054 1792075/63 65 30300 20600 1.621 35899 60 25379 1.837 1907080/67 65 30699 20399 1.627 36299 70 25589 1.955 1887985/71 66 31600 20500 1.641 37200 80 25839 2.086 1869075/63 98 25199 18399 1.897 31699 60 28129 1.912 2157080/67 99 25899 18600 1.915 32399 70 28429 2.049 2141085/71 99 27000 18899 1.946 33700 80 28800 2.204 2123975/63 90 26300 18800 1.835 32600 60 30640 1.989 2380980/67 90 26899 18899 1.849 33200 70 31000 2.145 2364985/71 91 28100 19300 1.876 34500 80 31480 2.334 2348075/63 86 26399 18800 1.834 32600 60 31839 2.028 2487980/67 87 26899 18899 1.848 33299 70 32240 2.194 2471985/71 87 28100 19300 1.876 34500 80 32820 2.417 2453975/63 105 23699 17800 1.976 30500 60 30170 1.974 2339980/67 106 24500 18100 2.000 31300 70 30539 2.127 2325085/71 107 25699 18399 2.035 32700 80 30989 2.306 2307975/63 98 24899 18199 1.916 31399 60 32960 2.067 2587080/67 98 25500 18399 1.934 32100 70 33409 2.244 2571985/71 98 26800 18899 1.963 33500 80 34140 2.507 2555075/63 94 24899 18199 1.914 31399 60 34299 2.114 2705080/67 94 25600 18399 1.933 32200 70 34820 2.314 2689085/71 95 26800 18899 1.963 33500 80 35710 2.626 2671975/63 110 22899 17399 2.025 29800 60 31469 2.016 2455980/67 110 23600 17699 2.051 30600 70 31879 2.180 2441085/71 111 24899 18199 2.098 32000 80 32439 2.393 2425075/63 102 23899 17899 1.966 30600 60 34429 2.117 2717080/67 103 24699 18100 1.988 31500 70 34979 2.322 2701985/71 103 25899 18500 2.020 32799 80 35899 2.641 2685075/63 99 24000 17899 1.963 30699 60 35829 2.162 2842080/67 99 24699 18199 1.986 31500 70 36520 2.412 2826085/71 99 25899 18500 2.019 32799 80 37630 2.787 2807975/63 119 21000 16699 2.118 2819980/67 120 21899 17000 2.159 2930085/71 121 23199 17600 2.236 3089975/63 112 22100 17100 2.064 2910080/67 112 22899 17500 2.094 3010085/71 113 24300 18000 2.152 3160075/63 108 22199 17100 2.061 2919980/67 109 23000 17500 2.091 3010085/71 109 24300 18000 2.149 3160075/63 128 19199 15900 2.205 2669980/67 129 20100 16399 2.262 2780085/71 130 21600 17000 2.378 2969975/63 121 20199 16300 2.156 2750080/67 121 21100 16800 2.204 2869985/71 122 22500 17399 2.292 3039975/63 118 20300 16300 2.152 2760080/67 118 21199 16899 2.200 2869980/67 119 22699 17399 2.288 3039975/63 137 17300 15199 2.282 2500080/67 138 18300 15800 2.347 2630085/71 139 19800 16500 2.506 2839975/63 130 18300 15599 2.241 2600080/67 131 19300 16199 2.302 2719985/71 132 20800 16800 2.433 2910075/63 127 18399 15699 2.236 2610080/67 128 19399 16199 2.297 2730085/71 128 20899 16899 2.428 29199

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

3.0 1.3

5.0 5.2

7.0 13.0

Capacity data





20

30

40

55

77

85

90

100

110

120



75/63 45 41899 27600 1.835 48200 60 15980 2.043 900980/67 46 42200 27199 1.832 48399 70 16620 2.007 976985/71 46 43100 27100 1.823 49399 80 17390 2.005 1055075/63 36 43399 28300 1.828 49600 60 16579 2.038 963080/67 36 43600 27899 1.825 49899 70 17250 2.007 1040085/71 36 44500 27699 1.814 50700 80 18059 2.012 1118975/63 32 44399 28800 1.831 50600 60 16910 2.035 997080/67 32 44600 28199 1.828 50799 70 17600 2.008 1075085/71 32 45399 28000 1.816 51600 80 18429 2.017 1155075/63 54 39700 26699 1.869 46100 60 19600 2.020 1271080/67 54 40100 26399 1.867 46399 70 20339 2.021 1343985/71 55 41100 26399 1.862 47399 80 21230 2.062 1418975/63 45 41200 27300 1.843 47500 60 20329 2.018 1344980/67 45 41500 27000 1.840 47799 70 21109 2.027 1418985/71 46 42500 26899 1.832 48700 80 22050 2.078 1494975/63 41 42200 27800 1.833 48399 60 20739 2.018 1384980/67 41 42399 27300 1.830 48700 70 21530 2.032 1459985/71 42 43399 27300 1.820 49600 80 22500 2.088 1536975/63 63 37500 25699 1.928 44000 60 23170 2.024 1626080/67 63 37899 25500 1.928 44500 70 24019 2.066 1696985/71 64 39000 25600 1.928 45600 80 25039 2.153 1769075/63 55 39000 26300 1.886 45399 60 24039 2.029 1710980/67 55 39399 26199 1.885 45799 70 24929 2.082 1782985/71 55 40399 26199 1.881 46799 80 26010 2.182 1855975/63 51 39899 26800 1.864 46299 60 24510 2.033 1757080/67 51 40299 26500 1.862 46600 70 25429 2.091 1830085/71 51 41299 26500 1.856 47600 80 26550 2.199 1903975/63 77 34100 24199 2.053 41100 60 28480 2.084 2137080/67 77 34700 24300 2.058 41700 70 29519 2.192 2203985/71 78 36000 24600 2.069 43000 80 30769 2.357 2273075/63 69 35600 24800 1.992 42399 60 29559 2.103 2237980/67 69 36200 24899 1.995 43000 70 30660 2.227 2305985/71 69 37299 25100 2.001 44200 80 31989 2.409 2376075/63 65 36600 25300 1.957 43299 60 30149 2.115 2292080/67 65 37100 25199 1.958 43799 70 31280 2.247 2360985/71 66 38200 25399 1.961 44899 80 32649 2.440 2432075/63 97 29199 22199 2.284 37000 60 36280 2.286 2848080/67 97 30000 22500 2.296 37799 70 37600 2.487 2910985/71 98 31399 23000 2.316 39399 80 39159 2.752 2976975/63 89 30699 22800 2.210 38299 60 37679 2.336 2971080/67 90 31399 23000 2.222 39000 70 39039 2.545 3035085/71 90 32799 23500 2.234 40500 80 40710 2.839 3101975/63 86 31699 23199 2.163 39100 60 38420 2.357 3037980/67 86 32399 23300 2.174 39799 70 39829 2.580 3101985/71 87 33700 23800 2.184 41200 80 41560 2.889 3169075/63 104 27399 21500 2.372 35500 60 39100 2.377 3098080/67 104 28300 21800 2.389 36399 70 40509 2.611 3160085/71 105 29800 22500 2.421 38100 80 42250 2.931 3224075/63 97 28899 22000 2.298 36799 60 40570 2.425 3228980/67 97 29699 22399 2.310 37600 70 42090 2.687 3292085/71 98 31199 22899 2.333 39100 80 43939 3.040 3357075/63 94 29899 22500 2.250 37600 60 41369 2.454 3300080/67 94 30699 22699 2.261 38399 70 42950 2.731 3363085/71 94 32100 23300 2.278 39899 80 44880 3.102 3428975/63 108 26300 21000 2.427 34600 60 40829 2.435 3252080/67 109 27199 21500 2.449 35600 70 42350 2.700 3313085/71 110 28800 22100 2.488 37299 80 44200 3.057 3377075/63 102 27800 21600 2.353 35799 60 42390 2.493 3388080/67 102 28699 21899 2.368 36700 70 44009 2.788 3450085/71 102 30199 22600 2.398 38299 80 46000 3.179 3514975/63 99 28800 22000 2.305 36700 60 43240 2.527 3460980/67 99 29600 22399 2.318 37500 70 44929 2.839 3524085/71 99 31100 22800 2.341 39000 80 46990 3.249 3589975/63 117 24100 20100 2.536 3270080/67 118 25100 20600 2.569 3379985/71 119 26699 21399 2.626 3570075/63 111 25600 20699 2.463 3400080/67 111 26500 21199 2.488 3500085/71 112 28100 21800 2.533 3670075/63 108 26600 21199 2.415 3479980/67 108 27500 21500 2.436 3579985/71 109 29000 22199 2.474 3739975/63 126 21800 19199 2.639 3089980/67 127 22899 19899 2.686 3210085/71 128 24600 20800 2.764 3410075/63 120 23399 19899 2.571 3210080/67 121 24399 20399 2.608 3329985/71 121 26000 21199 2.672 3510075/63 118 24300 20199 2.524 3289980/67 118 25300 20699 2.556 3400085/71 118 26899 21500 2.611 3579975/63 135 19600 18300 2.731 2889980/67 136 20800 19100 2.794 3030085/71 137 22600 20000 2.895 3239975/63 130 21100 19000 2.671 3019980/67 130 22199 19699 2.722 3150085/71 131 24000 20500 2.808 3350075/63 127 22100 19300 2.628 3110080/67 128 23199 20000 2.673 3229985/71 128 24899 20800 2.749 34200

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

3.8 3.5

6.2 7.0

8.5 10.9

Capacity data

20

30

40

55

77

85

90

100

110

120







75/63 44 46500 30300 2.028 53500 60 18530 2.337 1053980/67 44 46700 29699 2.027 53700 70 19489 2.374 1136985/71 44 47500 29500 2.026 54500 80 20559 2.438 1222075/63 35 48100 31000 1.986 54899 60 19199 2.339 1119980/67 35 48200 30399 1.986 55000 70 20179 2.380 1203985/71 35 49000 30100 1.982 55700 80 21280 2.451 1290075/63 31 49000 31399 1.966 55700 60 19579 2.340 1158080/67 31 49100 30800 1.966 55799 70 20579 2.384 1241985/71 31 49799 30500 1.962 56500 80 21690 2.458 1328975/63 53 44299 29300 2.109 51500 60 22910 2.359 1483980/67 53 44500 29000 2.109 51700 70 23929 2.428 1563085/71 53 45399 28899 2.111 52700 80 25079 2.529 1642975/63 45 45799 29899 2.053 52799 60 23699 2.365 1560980/67 45 46000 29600 2.052 53000 70 24760 2.441 1641085/71 45 46799 29300 2.051 53799 80 25949 2.550 1723075/63 41 46700 30300 2.023 53600 60 24160 2.370 1605980/67 41 46899 29899 2.023 53799 70 25239 2.449 1685985/71 41 47700 29699 2.021 54600 80 26440 2.562 1767975/63 62 41899 28300 2.209 49500 60 27170 2.403 1894980/67 62 42299 28100 2.211 49899 70 28269 2.507 1969985/71 63 43299 28100 2.217 50899 80 29519 2.648 2046975/63 54 43500 28899 2.141 50799 60 28100 2.416 1982980/67 54 43799 28600 2.141 51100 70 29239 2.528 2060085/71 54 44700 28600 2.144 52000 80 30539 2.679 2137975/63 50 44399 29300 2.103 51600 60 28629 2.424 2033980/67 50 44700 29000 2.104 51799 70 29800 2.541 2110985/71 51 45500 28899 2.105 52700 80 31120 2.698 2189075/63 76 38399 26800 2.387 46600 60 33420 2.512 2482980/67 76 38899 26800 2.393 47100 70 34679 2.672 2553985/71 77 40100 26899 2.408 48299 80 36100 2.878 2626075/63 68 40000 27500 2.304 47799 60 34560 2.537 2587980/67 68 40500 27300 2.309 48299 70 35859 2.709 2660085/71 69 41500 27500 2.318 49399 80 37340 2.928 2732975/63 65 40899 27899 2.258 48600 60 35210 2.553 2648080/67 65 41299 27699 2.261 49000 70 36539 2.731 2719985/71 65 42399 27699 2.269 50100 80 38060 2.959 2794075/63 96 33299 24600 2.685 42399 60 42460 2.763 3300980/67 96 34000 24899 2.703 43299 70 43969 3.014 3367085/71 97 35399 25399 2.732 44700 80 45679 3.316 3434075/63 89 34899 25300 2.592 43700 60 43909 2.814 3428080/67 89 35500 25500 2.605 44399 70 45460 3.075 3495085/71 90 36799 25899 2.631 45799 80 47250 3.401 3563075/63 86 35799 25699 2.538 44399 60 44740 2.845 3500980/67 86 36399 25800 2.549 45100 70 46320 3.112 3567985/71 86 37700 26199 2.572 46399 80 48159 3.451 3636975/63 103 31399 23800 2.798 41000 60 45729 2.880 3588080/67 104 32200 24300 2.821 41799 70 47310 3.156 3652085/71 104 33700 24699 2.857 43399 80 491 0 3.509 3717975/63 97 33000 24500 2.705 42200 60 47259 2.933 3722980/67 97 33700 24800 2.722 43000 70 48929 3.232 3788085/71 97 35100 25300 2.752 44500 80 50890 3.612 3854975/63 94 33899 24899 2.648 42899 60 48140 2.965 3800980/67 94 34600 25100 2.664 43700 70 49859 3.278 3865985/71 94 36000 25500 2.693 45100 80 51880 3.673 3932975/63 108 30199 23399 2.868 40000 60 47740 2.950 3764980/67 108 31100 23800 2.896 41000 70 49409 3.256 3828085/71 109 32600 24500 2.936 42600 80 51380 3.642 3892975/63 101 31800 24100 2.775 41299 60 49350 3.012 3904980/67 102 32600 24399 2.796 42100 70 51119 3.342 3968985/71 102 34000 24899 2.830 43600 80 53189 3.757 4035075/63 98 32799 24500 2.719 42000 60 50280 3.049 3985080/67 99 33500 24699 2.738 42799 70 52100 3.394 4049085/71 99 34899 25100 2.768 44299 80 54240 3.826 4115975/63 117 27899 22500 3.006 3810080/67 117 28800 23000 3.041 3920085/71 118 30399 23699 3.098 4100075/63 111 29500 23100 2.915 3939980/67 111 30300 23500 2.944 4039985/71 112 31800 24199 2.989 4200075/63 108 30399 23399 2.859 4010080/67 108 31199 23899 2.886 4110085/71 109 32700 24500 2.926 4270075/63 126 25500 21600 3.139 3620080/67 127 26600 22199 3.184 3739985/71 127 28199 23000 3.257 3929975/63 120 27100 22100 3.051 3750080/67 121 28100 22699 3.090 3860085/71 121 29699 23399 3.151 4039975/63 118 28000 22500 2.998 3829980/67 118 29000 23000 3.032 3929985/71 118 30500 23699 3.088 4110075/63 135 23100 20600 3.259 3429980/67 136 24300 21399 3.320 3560085/71 137 26000 22300 3.413 3770075/63 130 24699 21199 3.180 3560080/67 130 25800 21899 3.230 3679985/71 131 27500 22800 3.311 3879975/63 127 25699 21600 3.131 3639980/67 128 26699 22199 3.176 3750085/71 128 28300 23000 3.247 39399

Capacity data

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3

4.5 1.6

7.2 5.4

10.0 12.3





20

30

40

55

77

85

90

100

110

120



75/63 41 48100 33799 1.969 54799 60 20429 2.455 1253980/67 41 50100 34200 1.958 56799 70 21329 2.500 1328985/71 43 53100 35000 1.945 59700 80 22350 2.574 1405075/63 33 49500 34399 1.895 55899 60 21089 2.456 1319980/67 33 51399 34700 1.880 57799 70 22019 2.505 1397085/71 34 54299 35500 1.860 60700 80 23070 2.584 1474075/63 29 50500 34799 1.844 56799 60 21519 2.456 1363080/67 30 52399 35100 1.825 58600 70 22469 2.509 1440085/71 30 55299 35799 1.798 61500 80 23530 2.591 1517975/63 50 46100 32799 2.091 53200 60 24969 2.467 1703980/67 51 48100 33500 2.088 55299 70 25960 2.545 1776985/71 52 51200 34299 2.085 58299 80 27079 2.654 1851075/63 43 47500 33500 2.006 54299 60 25780 2.472 1782980/67 43 49500 33899 1.998 56299 70 26809 2.556 1857985/71 44 52500 34700 1.989 59299 80 27960 2.672 1932975/63 39 48500 33899 1.946 55200 60 26300 2.475 1833980/67 40 50500 34399 1.934 57100 70 27350 2.563 1908985/71 40 53500 35200 1.917 60000 80 28519 2.684 1985075/63 60 44100 32100 2.227 51700 60 29469 2.502 2142080/67 60 46200 32700 2.234 53799 70 30559 2.614 2212985/71 61 49299 33700 2.237 56899 80 31789 2.760 2285975/63 52 45500 32700 2.132 52799 60 30420 2.512 2233980/67 53 47500 33200 2.133 54799 70 31559 2.632 2305985/71 53 50600 34100 2.132 57899 80 32829 2.787 2380075/63 49 46500 33000 2.066 53500 60 31039 2.519 2292980/67 49 48500 33600 2.061 55500 70 32189 2.644 2366085/71 50 51600 34399 2.055 58600 80 33490 2.805 2441075/63 74 41100 30699 2.454 49399 60 36159 2.593 2780080/67 75 43200 31500 2.471 51700 70 37420 2.760 2848985/71 76 46500 32600 2.495 55000 80 38829 2.966 2919975/63 67 42399 31300 2.347 50399 60 37340 2.615 2891080/67 67 44600 32100 2.361 52700 70 38640 2.791 2960985/71 68 47700 33100 2.374 55799 80 40100 3.009 3032975/63 64 43500 31800 2.272 51200 60 38090 2.629 2960980/67 64 45600 32399 2.280 53399 70 39429 2.812 3032085/71 64 48700 33500 2.284 56500 80 40920 3.037 3103975/63 94 36600 28899 2.818 46200 60 45939 2.815 3682980/67 95 38899 30000 2.860 48700 70 47450 3.062 3749085/71 97 42299 31199 2.927 52299 80 49119 3.350 3817975/63 88 38000 29500 2.701 47200 60 47450 2.858 3818980/67 88 40299 30399 2.734 49600 70 49000 3.114 3885985/71 89 43600 31699 2.787 53100 80 50729 3.419 3956075/63 85 39000 30000 2.619 47899 60 48409 2.885 3906080/67 85 41200 30800 2.644 50299 70 49990 3.148 3974085/71 86 44500 32000 2.684 53700 80 51770 3.464 4043975/63 102 34899 28300 2.956 45000 60 49479 2.914 4003080/67 103 37299 29399 3.010 47600 70 51070 3.187 4068985/71 104 40700 30600 3.095 51299 80 52859 3.513 4135975/63 96 36399 28899 2.836 46100 60 51090 2.960 4147980/67 96 38700 29800 2.880 48500 70 52750 3.250 4214985/71 97 42100 31100 2.950 52100 80 54609 3.595 4282975/63 93 37299 29199 2.753 46700 60 52119 2.991 4239980/67 93 39700 30300 2.789 49200 70 53820 3.292 4307985/71 94 43000 31500 2.845 52700 80 55729 3.649 4377075/63 107 33899 27800 3.044 44299 60 51679 2.978 4200980/67 108 36299 28899 3.106 46899 70 53340 3.273 4265985/71 109 39700 30300 3.202 50700 80 55210 3.624 4332975/63 100 35299 28500 2.922 45299 60 53369 3.031 4350980/67 101 37700 29500 2.974 47899 70 55100 3.344 4417985/71 102 41100 30800 3.055 51500 80 57049 3.714 4485975/63 98 36299 28899 2.839 46000 60 54450 3.066 4446980/67 98 38700 29800 2.881 48500 70 56229 3.391 4514085/71 99 42100 31100 2.948 52100 80 58229 3.774 4584075/63 116 31899 27100 3.219 4289980/67 117 34399 28300 3.300 4560085/71 119 37799 29699 3.422 4950075/63 110 33299 27699 3.097 4389980/67 111 35700 28800 3.165 4650085/71 112 39200 30199 3.271 5029975/63 107 34299 28000 3.013 4460080/67 108 36700 29100 3.071 4720085/71 108 40100 30500 3.161 5089975/63 126 29800 26300 3.396 4139980/67 127 32399 27600 3.495 4429985/71 128 35899 29100 3.645 4839975/63 120 31300 26800 3.274 4250080/67 120 33799 28000 3.360 4520085/71 121 37200 29600 3.490 4910075/63 117 32200 27199 3.189 4310080/67 118 34700 28500 3.216 4589985/71 118 38200 29899 3.380 4970075/63 135 27800 25399 3.571 4000080/67 136 30399 26800 3.691 4300085/71 138 34000 28500 3.869 4720075/63 129 29199 26000 3.448 4100080/67 130 31800 27399 3.556 4389985/71 131 35299 29000 3.715 4800075/63 127 30199 26500 3.367 4170080/67 127 32700 27699 3.461 4450085/71 128 36299 29300 3.604 48600

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

5.3 2.7

8.7 8.6

12.0 18.2

Capacity data

20

30

40

55

77

85

90

100

110

120







75/63 42 59000 39600 2.443 67299 60 26070 3.324 1473080/67 43 59700 39399 2.433 68000 70 26460 3.260 1533085/71 43 61000 39399 2.414 69200 80 27019 3.246 1593975/63 34 61200 40700 2.372 69299 60 26579 3.315 1526980/67 34 61899 40299 2.360 69900 70 26989 3.256 1588085/71 34 63100 40100 2.337 71099 80 27579 3.248 1648975/63 30 63000 41399 2.329 70900 60 27089 3.306 1581080/67 30 63600 41000 2.315 71500 70 27530 3.252 1642985/71 30 64799 40799 2.289 72599 80 28140 3.250 1705075/63 52 56100 38399 2.557 64799 60 31309 3.245 2023080/67 52 56799 38200 2.550 65500 70 31850 3.235 2080985/71 52 58200 38399 2.538 66900 80 32590 3.280 2139975/63 43 58299 39299 2.466 66799 60 31960 3.238 2091080/67 43 59000 39100 2.457 67400 70 32530 3.234 2150085/71 44 60399 39000 2.440 68700 80 33299 3.287 2207975/63 40 60000 40200 2.407 68299 60 32609 3.231 2158980/67 40 60700 39799 2.396 68900 70 33219 3.234 2217985/71 40 62000 39700 2.374 70099 80 34020 3.295 2276975/63 61 53200 37200 2.693 62399 60 36570 3.201 2564980/67 61 54000 37200 2.691 63200 70 37289 3.248 2619985/71 62 55399 37299 2.689 64599 80 38210 3.355 2676075/63 53 55399 38100 2.586 64200 60 37369 3.198 2644980/67 53 56200 38000 2.580 65000 70 38119 3.253 2701085/71 53 57600 38200 2.571 66400 80 39079 3.370 2757975/63 49 57100 38799 2.514 65700 60 38170 3.195 2726080/67 49 57799 38600 2.506 66400 70 38950 3.259 2782985/71 50 59200 38700 2.491 67700 80 39950 3.387 2839975/63 75 48799 35299 2.931 58799 60 44539 3.201 3360980/67 75 49700 35399 2.938 59700 70 45530 3.339 3413085/71 75 51200 35899 2.952 61299 80 46750 3.546 3464975/63 67 51100 36200 2.804 60600 60 45560 3.207 3460980/67 67 51899 36299 2.806 61500 70 46590 3.356 3514085/71 68 53399 36600 2.811 63000 80 47869 3.578 3565975/63 64 52600 36899 2.719 61899 60 46579 3.214 3560980/67 64 53500 37000 2.717 62799 70 47659 3.376 3614085/71 64 55000 37100 2.715 64200 80 48990 3.611 3667075/63 95 42399 32700 3.329 53700 60 56439 3.346 4502080/67 95 43399 33200 3.355 54899 70 57859 3.625 4549085/71 96 45100 33899 3.382 56700 80 59460 3.956 4595075/63 88 44600 33600 3.185 55500 60 57799 3.373 4628080/67 88 45600 33899 3.204 56600 70 59240 3.656 4675985/71 89 47299 34500 3.224 58299 80 60909 4.008 4722975/63 85 46100 34299 3.092 56600 60 59170 3.403 4756080/67 85 47100 34600 3.105 57700 70 60630 3.690 4803085/71 85 48799 35100 3.120 59399 80 62380 4.063 4850975/63 102 40100 31699 3.483 51899 60 60810 3.434 4909080/67 103 41200 32299 3.513 53100 70 62289 3.733 4954985/71 103 42899 33200 3.553 55000 80 64099 4.132 5000075/63 96 42299 32700 3.335 53700 60 62250 3.455 5046080/67 96 43399 33200 3.361 54899 70 63810 3.776 5092085/71 96 45100 33899 3.388 56600 80 65700 4.199 5136975/63 93 43700 33200 3.242 54799 60 63700 3.480 5182980/67 93 44799 33700 3.262 55899 70 65329 3.823 5228985/71 93 46500 34399 3.281 57700 80 67310 4.270 5274075/63 107 38600 31199 3.579 50799 60 63490 3.476 5163080/67 107 39700 31800 3.613 52000 70 65090 3.815 5207085/71 108 41500 32600 3.662 54000 80 67040 4.258 5250975/63 101 40899 32000 3.431 52600 60 65010 3.504 5304980/67 101 41899 32700 3.459 53700 70 66689 3.866 5350085/71 101 43600 33299 3.494 55600 80 68730 4.335 5393975/63 98 42200 32500 3.338 53600 60 66540 3.535 5447980/67 98 43299 33200 3.362 54799 70 68310 3.922 5492985/71 98 45100 33899 3.387 56600 80 70439 4.417 5536975/63 116 35600 29899 3.770 4850080/67 117 36899 30800 3.816 4989986/71 117 38700 31800 3.884 5189975/63 110 37899 30800 3.623 5029980/67 110 39000 31600 3.659 5150085/71 111 40899 32500 3.713 5350075/63 107 39299 31500 3.533 5129980/67 108 40399 32000 3.563 5260085/71 108 42200 32799 3.604 5450075/63 125 32700 28899 3.958 4620080/67 126 34000 29699 4.018 4770085/71 127 35799 30699 4.107 4989975/63 120 35000 29800 3.815 4800080/67 120 36200 30600 3.863 4939985/71 120 38000 31600 3.936 5150075/63 117 36299 30300 3.728 4900080/67 117 37500 31000 3.770 5039985/71 117 39399 32000 3.830 5239975/63 135 29800 27699 4.138 4389980/67 135 31100 28699 4.216 4550085/71 136 33000 29899 4.328 4779975/63 129 32000 28600 4.001 4570080/67 129 33299 29600 4.064 4720085/71 130 35200 30600 4.158 4939975/63 127 33299 29100 3.922 4670080/67 127 34600 29899 3.976 4810085/71 127 36500 31100 4.056 50299

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

6.0 4.0

10.0 12.7

14.0 27.5

Capacity data





20

30

40

55

77

85

90

100

110

120


75/63 42 70099 48299 3.359 81599 60 33820 4.377 1885080/67 42 71599 48299 3.341 83000 70 33859 4.235 1937085/71 43 73599 48600 3.319 85000 80 34119 4.159 1989075/63 33 73500 49600 3.225 84500 60 34450 4.362 1953080/67 33 74900 49600 3.196 85799 70 34520 4.228 2005985/71 34 77000 49899 3.156 87799 80 34829 4.160 2058975/63 30 75700 50700 3153 86400 60 36079 4.326 2128080/67 30 77099 50500 3.117 87700 70 36240 4.211 2182985/71 30 79200 50500 3.065 89700 80 36640 4.166 2237975/63 51 66799 46799 3.514 78799 60 39500 4.262 2492080/67 51 68299 47000 3.507 80299 70 39759 4.191 2542985/71 52 70500 47500 3.501 82400 80 40280 4.191 2594075/63 43 70200 48299 3.357 81599 60 40310 4.250 2576980/67 43 71599 48299 3.338 83000 70 40619 4.188 2628985/71 43 73799 48600 3.312 85099 80 41179 4.201 2680975/63 39 72200 49200 3.271 83400 60 42399 4.222 2796080/67 39 73700 49200 3.243 84799 70 42820 4.187 2850085/71 40 75900 49399 3.205 86799 80 43500 4.229 2903075/63 60 63600 45500 3.689 76200 60 45280 4.193 3092980/67 61 65099 45700 3.694 77700 70 45789 4.196 3142985/71 61 67299 46399 3.706 79900 80 46570 4.278 3192975/63 52 66799 46799 3.514 78799 60 46280 4.186 3196080/67 53 68299 47000 3.506 80299 70 46840 4.202 3246085/71 53 70500 47500 3.496 82500 80 47679 4.299 3296975/63 49 68799 47700 3.419 80400 60 48850 4.174 3457080/67 49 70400 47899 3.400 82000 70 49549 4.225 3509085/71 49 72599 48100 3.376 84099 80 50530 4.359 3561975/63 74 58700 43399 3.983 72200 60 54159 4.178 3986980/67 75 60200 44000 4.010 73900 70 55060 4.300 4035085/71 75 62500 44700 4.030 76200 80 56259 4.511 4082975/63 67 61799 44700 3.788 74799 60 55450 4.184 4114080/67 67 63399 45100 3.798 76400 70 56420 4.324 4163085/71 67 65599 45700 3.809 78599 80 57700 4.555 4211975/63 63 63600 45500 3.685 76200 60 58789 4.211 4438080/67 64 65200 45700 3.684 77799 70 59929 4.398 4489085/71 64 67599 46399 3.685 80099 80 61399 4.681 4539075/63 95 51399 40600 4.462 66599 60 67670 4.348 5279980/67 95 53100 41200 4.516 68500 70 69189 4.661 5325085/71 96 55399 42299 4.582 71000 80 71019 5.062 5371075/63 88 54500 41600 4.252 69000 60 69430 4.386 5442080/67 88 56100 42500 4.292 70799 70 71049 4.725 5488085/71 88 58500 43399 4.329 73200 80 72920 5.137 5535075/63 85 56000 42299 4.150 70200 60 73959 4.501 5857080/67 85 57799 42899 4.180 72000 70 75689 4.867 5904985/71 85 60200 44000 4.198 74500 80 77829 5.352 5953075/63 102 48700 39500 4.646 64599 60 72730 4.468 5745080/67 103 50399 40299 4.710 66500 70 74409 4.828 5789985/71 103 52799 41399 4.798 69200 80 76430 5.288 5835075/63 95 51799 40600 4.433 66900 60 74670 4.521 5920080/67 96 53500 41399 4.482 68799 70 76379 4.889 5965985/71 96 55899 42500 4.540 71400 80 78530 5.385 6011975/63 93 53299 41200 4.334 68000 60 79480 4.622 6367080/67 93 55000 42100 4.371 69900 70 81489 5.071 6414085/71 93 57500 42899 4.408 72500 80 83969 5.663 6460975/63 107 47100 38799 4.760 63299 60 75900 4.548 6035080/67 107 48799 39700 4.833 65299 70 77659 4.932 6078985/71 108 51100 41000 4.936 68000 80 79879 5.451 6124075/63 100 50100 39899 4.550 65700 60 77870 4.586 6217980/67 101 51899 40799 4.604 67599 70 79750 5.006 6263085/71 101 54200 41899 4.676 70200 80 82099 5.564 6307975/63 97 51500 40600 4.452 66700 60 82959 4.710 6684980/67 98 53299 41399 4.495 68599 70 85180 5.223 6731085/71 98 55799 42500 4.546 71299 80 87890 5.884 6778075/63 116 43700 37500 4.990 6079980/67 117 45500 38600 5.085 6289985/71 118 47899 39899 5.219 6570075/63 110 46799 38600 4.782 6310080/67 110 48500 39700 4.853 6509985/71 111 50899 40799 4.954 6779975/63 107 48100 39299 4.692 6409980/67 107 49899 40100 4.750 6609985/71 108 52399 41399 4.828 6890075/63 126 40500 36200 5.220 5829980/67 126 42200 37299 5.336 6039985/71 127 44700 38799 5.503 6339975/63 119 43399 37299 5.016 6050080/67 120 45200 38399 5.109 6260085/71 120 47700 39700 5.241 6559975/63 117 44600 37700 4.933 6139980/67 117 46399 38799 5.010 6350085/71 117 49000 40100 5.119 6650075/63 135 37100 34899 5.442 5570080/67 135 38899 36200 5.583 5800085/71 136 41399 37700 5.784 6110075/63 129 40000 36000 5.249 5789980/67 129 41899 37299 5.363 6020085/71 130 44399 38600 5.529 6320075/63 127 41100 36500 5.175 5879980/67 127 43000 37700 5.274 6100085/71 l 27 45700 39000 5.416 64099

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3

7.5 6.0

12.8 17.1

18.0 33.3


Capacity data


All UnitsCooling Heating

Min Ambient Air 40oF 40oFNormal Ambient Air 80oF 70oFMax Ambient Air 100oF 85oFMin Ent Air ➀ , ➁ 50oF 40oFNormal Ent Air db/wb 80/67oF 70oFMax Ent Air db/wb ➀ , ➁ 100/83oF 80oF

Water enthalpy - oF (English units)

➀ At ARI flow rate➁ Maximum and minimum values may not be combined. If one value

is at maximum or minimum, the other two conditions may not exceedthe normal condition for standard units.

Operating limitsAir limits - oF (English units)

Physical dataEnglish units

UNIT SIZE 019 024 030 036 042 048 060Fan Wheel - D x W (In.) 10 x 7 10 x 7 10 x 7 10 x 7 11 x 10 11 x 10 11 x 10Fan Motor Power (hp) 1⁄6 1⁄6 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2Coil Face Area (Sq. Ft.) 2.9 2.9 3.5 3.5 5.0 5.7 5.7Coil Rows 3 3 3 3 3 3 3Refrigerant Charge (Oz.) 35 41.5 56 62 90 96 96Filter - (Qty.) Size (In.) (1) 171⁄4 x 265⁄8 (1) 173⁄8 x 347⁄8 (1) 195⁄8 x 221⁄8Water Connections - FPT 3⁄4" 3⁄4" 3⁄4" 3⁄4" 3⁄4" 3⁄4" 3⁄4"Condensate Conn. - O.D. (In.) 7⁄8 7⁄8" 7⁄8" 7⁄8" 7⁄8" 7⁄8" 7⁄8"Weight - Operate (Lb.) 206 218 250 275 325 337 367Weight - Shipping (Lb.) 188 200 228 253 303 315 345

UNIT FAN EXTERNAL STATIC PRESSURE (INCHES OF WATER) MIN. AIR-SIZE SPEED 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 FLOW (CFM)

019Low* 700 736 710 690 660 629 604 572 529 481 — — — —

475High 900 948 925 900 875 843 810 769 725 684 627 552 — —

024Low* 700 736 710 690 660 629 604 572 — — — — — —

570High 900 948 925 900 875 843 810 769 725 684 627 — — —

030Low* 1190 1175 1163 1140 1118 1095 1076 1050 1020 994 957 914 864 814

750High 1560 1523 1500 1460 1430 1396 1365 1325 1285 1243 1190 1140 1094 1045

036Low 1190 1175 1163 1140 1125 1104 1076 1050 1020 994 957 914 — —

900High* 1560 1523 1492 1460 1430 1396 1365 1325 1285 1243 1190 1145 1094 1028

042Low* — 1530 1492 1453 1425 1401 1370 1333 1300 1262 1227 1187 1136 1075

1050High — 1807 1770 1715 1680 1653 1620 1580 1531 1481 1425 1375 1315 1240

048Low — 1530 1492 1453 1425 1401 1370 1333 1300 1262 1227 — — —

1200High* — 1786 1753 1715 1680 1653 1620 1580 1531 1481 1425 1375 1315 1240

060Low — 1789 1760 1715 1690 1653 1623 1580 1531 — — — — —

1500High* — 2121 2093 2045 2011 1968 1928 1887 1837 1787 1728 1669 1595 1520

* = Factory wired

➀ See page 15 for discharge duct connection dimensions.

For wet coil, calculate face velocity (cfm/ coil face area, sq. ft.). Add the following static to the external static pressure for the corresponding face velocity300 fpm = 0.05", 400 fpm = 0.10", 500 fpm = 0.14". Re-enter table at the increased external static pressure to determine final cfm.

Fan performanceEnglish units - 60 cycle, 208 volts, single phase (include allowance for dry coil and filter)

All UnitsCooling Heating

Min Ent Water ➀ , ➁ 20oF 20oFNormal Ent Water 77oF 40oFMax Ent Water 120oF 90oF

EnvironmentThis equipment is designed for indoor installation only.Sheltered locations such as attics, garages, etc., generally willnot provide sufficient protection against extremes intemperature and/or humidity, and equipment performance,reliability, and service life may be adversely affected.

Power supplyA voltage variation of +10% of nameplate utilization voltageis acceptable. Three-phase system imbalance shall notexceed 2%.


Unit sizedimensions (inches)

a bc*

d eSTD OPT019-024 26.8 16.44 1.67 2.88 1.03 .50030-036 35.0 16.44 1.67 2.88 1.03 .50042-060 44.6 19.05 1.67 2.88 1.03 .50

PERCENT OF NOMINAL AIRFLOW85 90 95 100 105 110 115

Total Cooling Capacity 0.972 0.982 0.993 1.00 1.007 1.010 1.013Sensible Cooling Capacity 0.926 0.948 0.974 1.00 1.027 1.055 1.066kW - Cooling 0.977 0.984 0.993 1.00 1.011 1.018 1.028Total Heat of Rejection 0.975 0.983 0.991 1.00 1.008 1.015 1.018Total Heating Capacity 0.967 0.978 0.990 1.00 1.009 1.017 1.024kW - Heating 1.009 1.006 1.003 1.00 0.997 0.995 0.993Total Heat of Absorbtion 0.967 0.976 0.989 1.00 1.010 1.019 1.025

To determine unit performance at varying airflow rates, apply the above factors to the tables shown in catalog supplement.

115⁄16"(49mm)

F

G

N

J K

M

H

Comp

ControlBox

Coil

Air Flow

FanAssy.

17⁄8"(48mm)

L

Hanger bracket detail (top view) Filter rack/return air duct collar

English units

*C

D

A

E

Unit DIMENSIONS (INCHES) WATERSIZE A B* C D E F G H J K L M N CONNECTIONS019 40 20 19 11 9 44 42 381⁄2 201⁄4 22 181⁄2 40 20 3⁄4" FPT024 40 20 19 11 9 44 42 381⁄2 201⁄4 22 181⁄2 40 20 3⁄4" FPT030 46 20 19 12 9 50 48 441⁄4 201⁄4 22 181⁄2 46 20 3⁄4" FPT036 46 20 19 12 9 50 48 441⁄4 201⁄4 22 181⁄2 46 20 3⁄4" FPT042 50 28 21 15 9 545⁄16 525⁄16 48 285⁄32 30 26 50 28 3⁄4" FPT048 50 28 21 15 9 545⁄16 525⁄16 48 285⁄32 30 26 50 28 3⁄4" FPT060 50 28 21 15 9 545⁄16 525⁄16 48 285⁄32 30 26 50 28 3⁄4" FPT

* Add 15⁄8" for filter bracket.

Dimensional dataUnit sizes 019 thru 060

All dimensions are approximate

Straight dischargeEnd discharge

Access PanelB

C

E

AD

Low Voltage Holeand Knockout

7⁄8" O.D. CopperCondensate Conn.

Access Panel

Water Supply

Water Return

Return Air

Access Panel

1.5"

English units

Airflowcorrection factors

Line VoltageElectricalKnockout

B


Non-Programmble Electronic Thermostat

WSHP Mark IV/AC Board Low Voltage Terminal Strip

O W2 G W1 Y1 F E L U A P V R C

Thermostat Terminals

G W1 Y1 R Rc C




O W2 G W1 Y1 A R

Daisy-chain connection toadditional units Mark IV/ACboard “U” terminals

Time Clock(by others)




G W1 Y1 A Rc Rh



G W Y R


Mark IV/AC Units – Unit sizes 007 to 060

Manual Changeover Thermostat Standard Manual and Automatic Changeover Thermostat

Thermostat Connection Diagrams

Programmable Electronic Thermostat

P/N 105570801Includes Thermostat and Wall Plate(Honeywell P/N T8524D1064)

P/N 105570901Includes Thermostat and Wall Plate(Honeywell P/N T8624D2111)

P/N 105571003Includes Thermostat and Subbase(Honeywell P/N’s T874C1869 and Q674C1579)Fan Switch: Auto / On / Tenant OverrideSystem Switch: Off / Auto

Note: Thermostat provides a fixed 13oF differential between W1 and W2.

P/N 106069001Includes Thermostat and Subbase(Honeywell P/N T834C2416)Fan Switch: Auto / OnSystem Switch: Heat / Off / Cool

P/N 105570701Includes Thermostat and Subbase(Honeywell P/N’s T874A1598 and Q674E1460)Fan Switch: Auto / OnSystem Switch: Off / Heat / Auto / Cool

Operation: The units Mark IV/AC board willbe in the occupied mode, monitoring terminalsW1 and Y1 and ignoring terminal W2, whenthe time clock contacts are open. The MarkIV/AC board will be in the unoccupied mode,monitoring terminal W2 and ignoring terminalsW1 and Y1, when the time clock contacts areclosed. No cooling is allowed during theunoccupied mode. The tenant override featureof the thermostat allows the occupant to forcea 2-hour override of unoccupied mode. Duringthis override period the W1 and Y1 terminalsare monitored and the W2 terminal is ignored(same as occupied).

Deluxe Automatic Changeover Thermostat

WSHP Mark IV/AC Board Low Voltage Terminal



G W1 Y1 R Rc C


Typical wiring diagram

Mark IV/AC unit wiring diagram Common

L2

2

234

32ComprMotor

CC

3

RDHTR

RD

36

FanMotor

10YE

BRGN

3411Cap

12

OR 240V

RD 208V

12

24VAC

CC

34 3535

BKXFORMER

YE

BL

37

35CondensateSensor

CircuitBreaker

(Optional)

44

70

13

43

Lo Temp

Hi Press

42

BR

BR

Lo Press

40

46

060-BLK048-BLU042-Red036-BLK030-Red024-BLK019-BLK

136

CC30

1

L1 L3 Gnd

Common

Fan

HP

HP LT LT

CO

F

RV

RV V R C

O W2

G W1

Y1

F E L U A P V R C

Mark IVPC

BoardReversingValve

Solenoid

BK61BK60

S

L1 Com

p

CC - Compressor ContactorHTR - Crankcase Heater (Optional)Cap - Motor Capacitor


Engineering guide specifications

General — Contractor shall furnish and install water source heat pumps as indicated on plans. Each unit shall be ARI certifiedand CUL listed. Each unit shall be fully run tested at the factory. Each unit shall be shipped on a wooden skid and covered withcorrugated material.

Casing and cabinet — The cabinet shall be fabricated from heavy-gauge G-60 galvanized steel. The interior shall be insulatedwith 1/2" (13 mm) thick, 1 1/2 lb. (681g) coated glass fiber. Panels shall provide access to the fan compartment and the compressor/control box compartment. Unit shall have an insulated panel separating the fan compartment from the compressor compartment.Unit shall have a 1" (25 mm) thick throwaway filter and a factory installed combination filter rack/return air duct collar. The filtersshall be removable from the side or from the bottom. Unit shall have a galvanized steel painted drain pan with a drain connectionextending through the unit casing. Cabinet shall have separate holes and knockouts for entrance of line voltage and low voltagecontrol wiring. Supply and return water connections shall be copper FPT fittings and shall protrude through the cabinet forconnection to a flexible hose. Unit shall be supplied with heavy metal brackets, rubber isolators, fasteners and washers tosuspend and isolate the unit from the building structure.

Refrigerant Circuit — Units 5 tons (15000 watts) and below shall have a single sealed refrigerant circuit including a hermeticcompressor, thermal expansion valve(s), finned tube heat exchanger, reversing valve, water-to-refrigerant heat exchanger, accessvalves, safety controls, and insulated refrigerant tubing.

Compressor shall be hermetic type with external vibration or rubber mounts and thermal overload protection. The finned tubecoil shall be constructed of aluminum fins bonded to copper tubes. The heat exchanger shall be rated for 400 psig (2760 kPa) onthe water side and 450 psig (3103 kPa) on the refrigerant side.

Safety controls shall include a low suction temperature (freezestat) switch and a high refrigerant pressure switch to lock outcompressor operation. Units two tons and above shall have a low refrigerant pressure switch for loss of charge protection. A lowpressure switch shall not be permitted to replace a low suction temperature switch for freeze protection. Units shall be capableof being reset only by interrupting the power supply to the unit. Unit shall not be able to be reset from the wall thermostat.

Unit shall be capable of starting in an ambient of 40oF (5oC) with entering water at 40oF (5oC) with both air and water flow ratesat the ARI rating conditions.

Electrical — A control box shall be located within the unit and shall contain controls for compressor, reversing valve and fanmotor operation and shall have a 50 VA transformer, circuit breaker in the low voltage circuit, and a terminal block for low voltagefield wiring connections. Unit shall be nameplated to accept time delay fuses or HACR circuit breaker for branch overcurrentprotection of the power source.

Unit control system shall provide heating or cooling as required by the setpoints of the wall thermostat. The unit controlscheme shall provide for fan operation simultaneous with compressor operation (fan interlock) regardless of the thermostattype. The unit shall be capable of providing an output signal to an LED on the thermostat or to a central monitoring panel toindicate a “fault” condition from the activation of any one of the safety switches.

Fan and Motor Assembly — Units 5 tons (15000 watts) and smaller shall have a direct drive centrifugal fan. The fan housingshall have a removable orifice ring to facilitate fan motor and fan wheel removal. The fan housing shall protrude through thecabinet to facilitate field duct connection. The fan motor shall be a PSC type with integral mounting brackets isolated from thefan housing and thermal overload protection. Units above one ton shall have a terminal strip mounted on the fan motor tofacilitate motor speed change. Units shall have a straight-through or right-angle discharge air arrangement and shall be able tobe field converted from one to the other without the use of additional parts.

Mark IV/AC Control System — Unit shall have a microprocessor based control system. The unit control logic shall provideheating and cooling operation as required by the setpoints on the wall thermostat. The control system shall provide the following:

1. The use of standard mercury bulb type or programmable wall thermostats.2. Fan operation simultaneous with the compressor (fan interlock) regardless of thermostat logic.3. Time delay compressor operation.4. Delayed de-energization of the reversing valve for quiet reversing valve operation.5. Compressor short cycle protection of a minimum of three minutes before restart is possible.6. Random unit startup after coming off on unoccupied mode.7. Single grounded wire connection for activation of the unoccupied, load shed or unit shutdown modes.8. Night setback temperature setpoint input signal from the wall thermostat.9. Override signal from wall thermostat to override unoccupied mode for 2 hours.

10. Brownout protection to suspend unit operation if the supply voltage drops below 80% of normal.11. Condensate overflow protection to suspend cooling operation in an event of a full drain pan.12. Suspended compressor operation upon activation of the refrigerant pressure switch(es).13. Cooling operation activated for 60 seconds upon activation of the low suction temperature (freezestat) switch - defrost

cycle.14. Method of defeating compressor, reversing valve and fan time delays for fast service diagnostics.

15. Remote reset of automatic lockouts.

16. Heat retry to minimize nuisance trips.


Field Installed Accessories

Thermostats (Choose one of the following wall thermostats)■ Manual changeover wall thermostat for one-stage or two-stage heating and cooling operation. Subbase shall have system

“heat-off-cool” and fan “on-auto” switches.■ Deluxe automatic changeover wall thermostat for one stage heating, one stage cooling, one stage night setback heating

operation 12oF (-6.6oC) below daytime heat setpoint and built-in override switch to activate the two-hour override functionof the Mark IV board. Subbase shall have system “off-auto” and fan “on-auto-(override)” switches with LED for “fault.”

■ Automatic and manual changeover wall thermostat for one stage heating and one stage cooling operation. Subbase shallhave system “off-auto” and fan “on-auto” switches with LED for “fault.”

■ Programmable wall thermostat for one stage heating, one stage cooling, night setup, night setback and day/night time clockoperation. The thermostat shall have system “on-off,” temperature “heat-auto-cool” and fan “on-auto” switches.

■ Non Programmable Electronic — Premier white, mounts horizontal, system switch; Off-Heat-Auto-Cool and fan switch; On-Auto.

Flexible Hoses

■ Two fire rated flexible hoses with ASTM ratings of Flame Spread 25, Fuel Contribution 25 and Smoke Density 50 for connectionto unit and field piping. Hose shall be covered with galvanized steel.

Valves — Two combination balancing and shutoff valves with adjustable memory stop.

Two-Inch Filter Rack — Return air duct collar and 2" (51 mm) filter rack to accept a return air duct connection and a 2"(51 mm) thick filter. The bottom bracket shall be capable of being relocated for bottom filter removal.

Pleated Filter — Pleated filter(s) for 30% efficiency.

Boilerless System KitBoilerless system kit locks out compressor heating operation if the entering water falls below the adjustable setpoint. In addition,the control shall provide a contact signal to control a field installed electric heater downstream of the heat pump unit. Anemergency heat switch shall be provided.

Field Installed Controls

■ Motorized valve relay and control valve. The assembly shall include a relay, valve and wire harness. The valve shall open whenthe compressor is on and close when the compressor is off.

■ Multiple unit control panel allows a single thermostat to control up to three units in parallel.■ Auxiliary relay controls optional devices when the fan is operating. The relay shall have SPDT contacts.


Notes

Total Heat Pump Capability

©2005 McQuay International (800) 432-1342 www.mcquay.com Catalog 1157-7 (3/05)

®

Vertical Units1⁄2 to 25 Tons

Horizontal Units1/2 to 10 Tons

Console Units1/2 to 11⁄2 Tons

Rooftop Units3 to 35 Tons

This document contains the most current product information as of this printing. For the most up-to-dateproduct information, please go to www.mcquay.com.

McQuay International reserves the right to change design and specifications without notice in support of our policy of continuous product and data improvement.

™®The following are trademarks or registered trademarks of their respective companies: LonTalk from Echelon Corporation, BACnet from ASHRAE, Protocol Selectability, andMicroTech II from McQuay International.

Water to WaterUnits3 to 35 Tons

high efficiency, extended range horizontal water source ......57000 16625 12.6 3.7 42500 12396 2.8...

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