Catalog 1109-2 Enfinity™ Large Vertical Water …...Product Category W = WSHP Product Identifier LVC = Large Vertical - Standard Range LVW = Large Vertical - Geothermal Design Series

Enfinity™ Large Vertical Water Source Heat Pumps with R-410A Refrigerant Vertical Models LVC Standard Range & LVW Geothermal RangeUnit Sizes 072 – 290 (6 to 25 Tons) • R-410A Refrigerant

Engineered for flexibility and performance™

Catalog 1109-2

Page 2 of 56 McQuay Large Vertical Water Source Heat Pumps Catalog 1109-2

“McQuay” is a registered trademark of McQuay International. ©McQuay International 2009. All rights reserved throughout the world.

The information in this manual supersedes and replaces previous catalogues with regards to McQuay Water Source Heat Pump products. Illustrations cover the general appearance of McQuay International products at the time of publication and McQuay International reserves the right to make changes in design and construction at anytime without notice.

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

Catalog 1109-2 McQuay Large Vertical Water Source Heat Pumps Page 3 of 56

Contents

Introduction ...................................................................... 4Large Vertical Water Source Heat Pumps ..................... 4

Models LVC & LVW, Sizes 072 - 290 (6 to 25 Tons) ...... 4Nomenclature................................................................... 4LVC & LVW Features and Options ................................. 5

Refrigeration System ..................................................... 6Thermal Expansion Valve .............................................. 6Fan Section .................................................................... 6Factory Installed Options ............................................... 6

Control Features .............................................................. 7Control Choices And Added Functionality ...................... 7

MicroTech® III Controller ................................................ 8MicroTech III Operating Features................................... 8I/O Expansion Module.................................................... 9

MicroTech® III Controller with LonWorks® or BACnet® Communication Module ................................................ 10

MicroTech III LonWorks Communication Module ........ 10MicroTech III BACnet Communication Module ............ 10MicroTech III Controller with Communication Modules

Features ....................................................................... 10Applications ................................................................... 11Unit Location .................................................................. 11

Fan Deck Arrangements .............................................. 11Vibration Isolators ........................................................ 12Ductwork and Attenuation ............................................ 13

Typical Cooling and Heating Refrigeration Cycles – Dual Compressors......................................................... 14Systems .......................................................................... 15

Boiler / Tower Applications: ARI 320 / ISO 13256-1 ..... 15Open Loop Well Water Applications: ARI 325 / ISO

13256-1 ....................................................................... 15Closed Loop Geothermal Applications: ARI 330/ISO

13256-1 ....................................................................... 16ISO Performance Data .................................................. 17Capacity Data ................................................................. 19

Size 072 @ 2300 SCFM .............................................. 19Size 072 @ 2300 SCFM (continued) .......................... 20Size 096 @ 3000 SCFM .............................................. 21Size 096 @ 3000 SCFM (continued) ........................... 22Size 120 @ 4000 SCFM .............................................. 23Size 120 @ 4000 SCFM (continued) ........................... 24Size 180 @ 6000 SCFM .............................................. 25Size 180 @ 6000 SCFM (continued) ........................... 26Size 215 @ 7167 SCFM .............................................. 27Size 215 @ 7167 SCFM (continued) ........................... 28Size 290 @ 9670 SCFM .............................................. 29Size 290 @ 9670 SCFM .............................................. 30

Electrical Data ................................................................ 31Operating Limits ............................................................ 32

Additional information for initial start-up only ............... 32Correction Factors ........................................................ 33

Airflow Correction Factors............................................ 33Antifreeze Correction Factors ...................................... 33

Physical Data ................................................................. 34Performance Curves ..................................................... 35Dimensional Data .......................................................... 37

LVC/LVW Top Discharge – 072 .................................... 37LVC/LVW Top Discharge – 096 .................................... 37LVC/LVW Top Discharge – 120 .................................... 38LVC/LVW Top Discharge – 180 .................................... 38LVC/LVW Top Discharge – 215 ................................... 39LVC/LVW Top Discharge – 290 .................................... 39LVC/LVW Top Horizontal Discharge – 072, 096, 120... 40LVC/LVW Top Horizontal Discharge – 180, 215, 290... 40

Accessories ................................................................... 41Optional 2" Filter Rack & Return Air Duct Collar ......... 41Supply and Return Water Hoses ................................ 43Condensate Hose Kit ................................................... 43Combination Balancing and Shutoff (Ball) Valves ........ 43Motorized Valve ........................................................... 44Field Installed Controls ................................................ 44Multiple Unit Control Panel (MUCP) ............................ 44

Programmable Electronic Thermostat ....................... 45Non-Programmable, Auto or Manual Changeover Thermostat ..................................................................... 45

Optional Remote Sensor.............................................. 46MicroTech III Water Source Heat Pump Wall Sensors 46

Optional Water Source Heat Pump Room Wall Sensors Wiring............................................................. 47

Programmable Electronic Thermostat Wiring .............. 47Non-Programmable, Auto or Manual Changeover

Wiring ........................................................................... 47Optional Remote Sensor Wiring ................................. 48

Typical Wiring Diagrams ............................................... 49MicroTech™ III Controller with I/O Expansion

Module & Communication Module ............................... 49208/230, 460, 575-60-3 (1.5 hp or less)....................... 49MicroTech™ III Controller with I/O Expansion

Module & Communication Module ............................... 50208/230, 460, 575-60-3 (greater than 1.5 hp) .............. 50MicroTech™ III Controller with I/O Expansion

Module & Communication Module ............................... 51208/230, 460, 575-60-3 – Unit Size 290 ...................... 51

Engineering Specifications .......................................... 52


IntroductionLarge Vertical Water Source Heat PumpsModels LVC & LVW, Sizes 072 - 290 (6 to 25 Tons)■ ModelLVC(StandardRange:55°Fto110°F)■ ModelLVW(GeothermalRange:30°Fto110°F)LargeVerticalWaterSourceHeatPumpunitsareeasilylocatedinequipmentroomsorfloor-by-floorinstallations.Theycanbeappliedtoallbuildingtypeswhereitisadvan-tageoustoextendthewatersourceheatpumpconcepttolargerorcoreareas.Eachheatpumpisfactoryassembledandruntestedforreliability.Serviceisaccomplishedthroughmultiplefront,backandsideaccesspanels.Accessisavailabletoallser-viceablecomponents.Eachunitshipsonawoodenskidandcoveredwithplastictofacilitatemovingwithaforktruck.Twouniqueframesizesmakeupour6-through25-tonproductline-eachwithaconsistentshapeforeasylayoutoftheductwork,waterpiping,condensatepipingandelec-tricalconnections.UnitsareconstructedofheavygaugeG-60galvanizedsteel.Theinteriorsofallframeworkandpanelsarecovered

with1/2"thick,1½lb.dual-densityfiberglassinsulation.Standard1"filtersaresupportedbyfactory-mountedbrack-etsforsideremovalineitherdirection.Electricalcomponentsarelocatedinthelowersection,adjacenttothecompressor(s).Knockoutsareprovidedonbothsidesoftheunittofacilitatemainpowerandlowvoltagewiringthroughseparateholes.Eachunitisratedtoaccepttimedelayfusesforbranchcircuitovercurrentprotection.EachunitislistedwithCETL.Thecontrolboxisaccessiblethroughthecompressorsectionaccesspanel.Thecontrolboxhousesthemajoroperatingelectricalcontrols,includingthecontrolcir-cuitboard(s),transformer,compressorcontactor(s),fancontactor(s)andterminalblock.Eachcomponentisacces-sibleforserviceorreplacement.ThestandardcontrolforalllargecapacityunitsistheMicroTech™IIIcontroller.Theunitcontrollerreceivesitspowerfromthe75VAcontroltransformer.ALonWorks®orBACnet®communicationmoduleisavailableasaselectableoption.

Nomenclature

Note: For illustration purposes only. Not all options available with all models.

Please consult McQuay Sales Representative for specific availability.

W LVC 1 215 B L Y S Y Y F

Product CategoryW = WSHP

Product IdentifierLVC = Large Vertical - Standard RangeLVW = Large Vertical - Geothermal

Design Series1 = A Design 4 = D Design2 = B Design 5 = E Design3 = C Design

Nominal Capacity072 = 72,000 BTU/h096 = 96,000 BTU/h120 = 120,000 BTU/h180 = 180,000 BTU/h215 = 215,000 BTU/h290 = 290,000 BTU/h

ControlsB = MicroTech IIIA = DDC Less Board

Network Module OptionL = LonWorks® ModuleB = BACnet® ModuleY = None

VoltageD = 208-60-3F = 208/230-60-3H = 230-60-3K = 460-60-3L = 575-60-3N = 380-50-3

ReservedY = None

ReservedY = None

Condensate OverflowS = Standard Overflow Sensor

Current SensingY = None


I/OExpansionModule

MicroTech®IIIController LonWorks®

CommunicationModule

BACnet®CommunicationModule

LVC & LVW Features and Options

1 Cabinet -HeavygaugeG-60galvanizedsteel.2 Insulation -Allinteriorframeworkandpanelsare

linedwith1/2"thick,1½lb.dual-densityfiberglassinsulation.Optional(IAQ)closed-cellfoaminsulation.

3 Filter -Standard1"factory-installedfilterrackwith1"throwawayfilter.Optional2"filterrackwithductcollarforfield-installation.

4 Refrigerant Circuit -Allunitshaveadualrefrigerantcircuitwithscrollcompressors,thermalexpansionvalve,coaxialheatexchanger,finnedtubeairsidecoilandreversingvalve.

5 Compressor Vibration Isolators -Standardfeatureforallunits,reducesvibrationsoundlevelsduringcompressoroperation.

6 Schrader Connections -FourSchradervalvesarelocatedinsidetheendaccesspanel–oneonthelowsideandoneonthehighsideoftherefrigerationcircuit–forchargingandservicing.Allvalvesare7/16"SAEfittings.

7 MicroTech® III Controllers –Designedforflexibility,thecontrolboardisusedinstandalone

applicationsinconjunctionwiththeI/Oexpansionmoduleforcontrolofthesecondrefrigerantcircuit.AseparateLonWorks®orBACnet®communicationmodulecanbeeasilysnappedontotheboardtoallowcommunicationwithabuildingautomationsystem.Thecontrolsystemaccomodatestheuseofatwo-stageheat/two-stagecool7-dayprogrammableornon-programmablewall-mountedthermostat,offeredasafield-installedoption.

Electrical -Thecontrolenclosureincludesfanrelay,compressorrelays,24-voltcontroltransformer,reversingvalvesolenoidcoil,lockoutcircuitsandcontrolcircuitboard.

8 LED Annunciator –ExternalLEDstatuslightsdisplayfaultconditionstoprovideeasytroubleshootinganddiagnosis,visiblewithoutremovingaccesspanel.

9 External Pipe Connections –Supplyandreturnpipeconnectionslocatedoutsidethecabinetmakepipeconnectionseasywithoutremovingaccesspanels.

Safety Controls (Not Shown) -Lowandhighrefrigerantpressureswitchesandlowrefrigerantsuctiontemperature(freezestat)sensor.


Largeverticalwatersourceheatpumpunitsareeasilylocatedinsmallequipmentroomsorfloor-by-floorinstalla-tions.Theycanbeappliedtoallbuildingtypeswhereitisadvantageoustoextendthewatersourceheatpumpconcepttolargerorcoreareas.Eachheatpumpisfactoryassembledandruntestedforreliability.Serviceisaccomplishedthroughmultiplefront,backandsideaccesspanels.Accessisavailabletoallser-viceablecomponents.Eachunitshipsonawoodenskidandcoveredwithplastictofacilitatemovingwithaforktruck.Twouniqueframesizesmakeupour6-through25-tonproductline-eachwithaconsistentshapeforeasylayoutoftheductwork,waterpiping,condensatepipingandelec-tricalconnections.UnitsareconstructedofG-60galvanizedsteel.Theinte-riorsofallframeworkandpanelsarecoveredwith1/2"thick,1½lb.dual-densityfiberglassinsulation.Closed-cellfoam(IAQ)insulationisavailableasaselectableoption,suitableforfiberglass-freeapplications.Multiple1"filtersaresupportedbyfactory-mountedbracketsforsideremovalineitherdirection.Electricalcomponentsarelocatedinthelowersection,adjacenttothecompressor(s).Knockoutsareprovidedonbothsidesoftheunittofacilitatemainpowerandlowvoltagewiringthroughseparateholes.Eachunitisratedtoaccepttimedelayfusesforbranchcircuitovercurrentprotection.EachunitislistedwithCETLandCE.Thecontrolboxisaccessiblethroughthecompressorsectionaccesspanel.Thecontrolboxhousesthemajoroperatingelectricalcontrols,includingthecontrolcir-cuitboard(s),transformer,compressorcontactor(s),fancontactor(s)andterminalblock.Eachcomponentisacces-sibleforserviceorreplacement.Figure 1: Front View with Access Panel Removed

Refrigeration SystemAllLargeVerticalunitsizeshavedualindependentcircuits.Eachcircuitincludesascrollcompressor,reversingvalve,waterto-refrigerantcoaxialheatexchanger,expansionvalve,airsidecoil,andsafetycontrols.Thecompressorislocatedadjacenttothecompressorac-cesspanelandisolatedfromabottompanelwithrubberisolators.

LVC & LVW Features & OptionsThereversingvalveisenergizedintheheatingmodeandwill“fail-safe”tothecoolingmode,whichisthepredomi-nantmodeofoperation.Bothheatexchangercomponentsincorporateadvanced-heattransfertechnologies.Thecoaxialheatexhangerhasacopperinnertubeandsteeloutertube.Thelargefaceareacoilhascoppertubesandaluminumfins.Geothermalunitsincludecoilandpipinginsulationtoprotectagainstconden-sationinlowtemperatureapplications.Safetycontrolsoneachrefrigerantcircuitincludeasuc-tionlinetemperaturesensor,lowrefrigerantpressureandhighpressureswitchestolockoutcompressoroperationatextremeconditions.Thesafetycontrolscanonlyberesetfromthemaindisconnectswitchtopreventunauthorizedreset.Eachcircuithashighandlowsiderefrigerantservicevalvesforrefrigerantcircuitdiagnosticsandcharging.

Thermal Expansion ValveUnitsincludeaThermalExpansionValve(TXV)forrefrigerantmetering.TheTXVallowstheunittooperateatoptimumefficiencywithfluidtemperaturesrangingfrom25°Fto110°F,andenteringairtemperaturesrangingfrom40°Fto90°F.TheTXVpreciselymeterstheexactamountofrefrigerantflowthroughthesystemtomeettheloadanddeliverratedheatingandcoolingcapacity.

Fan SectionThefansectionincludesabelt-drivenfanassembly,mul-tipleDWDIforwardcurvedfanwheels,solidfanshaft,steelballbearings,threephasefanmotor,adjustablemotorsheave,adjustablemotorbase,fanpulleyandinsulateddividerpanelbetweenthecompressorsection.Unitsizes072through120havetwofanassembliesandunitsizes180through290havethreefanassemblies.Thefanmotorisalwayslocatedatthepipingend.Figure 2: Belt-Driven Fan Assembly Compartment

Factory Installed OptionsOptionalhighstaticfanmotorsareavailableoneachunitsizetohandleincreasedCFMandstaticpressureapplications.


Table 1: Control Options Control Description Application Protocol

TheMicroTechIIIcontrollerisastand-alonemicroprocessor-based controlboardconvenientlylocatedintheunitcontrolenclosureforeasyaccessibil-ity.Theboard isdesigned toprovidethermostatcontrolofaWaterSourceHeat Pump using a two-stagewallthermostat.Theunitcontrollerprovidesunit-wide control of theWSHP andcontrolofthefirstrefrigerantcircuit.

TheI/OExpansionModuleisanexten-sionoftheMicrotechIIIcontrollerandprovidescontrolofthesecondrefriger-antcircuit.ExternalLEDstatuslightsdisplayfaultconditionstoprovideeasytroubleshooting anddiagnosis of thesecondcircuit.

TheMicroTech III control systemacceptsaplug-inLonWorkscommu-nicationmodule to provide networkcommunicationsandaddedfunctional-itytoeasilyintegratewithanexistingBAS.Thecommunicationmodulecanbe factory- or field-installed and istestedwithalllogicrequiredtomonitorandcontroltheunit.

TheMicroTech III controller acceptsa plug-in BACnet communicationmodule to provide network commu-nications and added functionality toeasilyintegratewithanexistingBAS.The communicationmodule can befactory-orfield-installedandistestedwithalllogicrequiredtomonitorandcontroltheunit.

Eachunitcontrollerisfactoryprogrammed,wired,andtestedforcompletecontrolofsinglezone,standaloneoperationofyourMcQuayWaterSourceHeatPump.

Allowsfor:• Controlofsecondrefrigerationcircuit.

Designed to be linkedwith a centralized buildingautomationsystem(BAS)throughaLonWorkscom-municationsnetworkforcentralizedschedulingandmanagementofmultipleheatpumps.

Designed to be linkedwith a centralized buildingautomation system (BAS) through aBACnet com-municationsnetworkforcentralizedschedulingandmanagementofmultipleheatpumps.

Un i t -moun t edorwall-mountedthermostat

Wal l -moun tedt he rmos t a t o rsensor

LonM a r k 3 . 4 certified

BACnetMS/TP

MicroTech III

(Standalone) Unit Controller

withI/O Expansion

Module

LonWorks

Communication Module

BACnet

Communication Module

Control Features

■ MicroTechIIIcontrollerandI/OexpansionmodulewithaLonWorks®communicationmodule

■ MicroTechIIIcontrollerandI/OexpansionmodulewithaBACnet®communicationmodule

Eachoptionfeaturesdirectquick-connectwiringtoallunit-controlledcomponentsfor“clean”wiringinsidethecontrolbox.Eachcontrolcircuitboardreceivespowerfroma75VAtransformer.

Control Choices And Added FunctionalityThecontrolenclosurehousesthemajoroperatingelectri-calcontrolsincludingtheMicroTech®IIIcontrollerandI/Oexpansionmodule,controltransformer,compressorrelaysandfanrelay.Eachcomponentiseasilyaccessedforserviceorreplacement.ThreeuniquecontrolchoicesareofferedwiththeMicro-TechIIIcontrolsystem:■ StandaloneoperationusingaMicroTechIIIcontroller

andI/Oexpansionmodule


Control Features

MicroTech® III ControllerTheMicroTechIIIControllerisamicroprocessor-basedcontrolboardconvenientlylocatedintheunitcontrolboxforeasyaccessthrougharemovableaccesspanel.Thestandaloneunitcontrollerisahardwiredinterfaceandprovidesallthenecessaryfieldconnections.Theboardcanbewiredfor24-voltACoutputtothewallthermostatbyusingterminalsR&C.AnLEDannunciatorislocatedonthefrontoftheunitchassistoallowquickcheckoftheunitoperatingstatus.

MicroTech III Operating FeaturesAssumescyclefanoperation-notcontinuousfanoperation:■ Start-up –Theunitwillnotoperateuntilalltheinputs

andsafetycontrolsarecheckedfornormalconditions.■ Cooling mode –Onacallforcoolingfromthewall

thermostat,thecontrollerwillenergizethefanrelayandstagecompressorstosatisfythespacetemperaturesetpoint.Whentheloadissatisfied,thecontrollerwilldisablethecompressorandfan.

■ Heating Mode –Onacallforheatingfromthewallthermostat,thecontrollerwillenablethefan,energizecircuitonereversingvalveandcircuit1compressortosatisfythespaceheatingsetpoint.Ifthespacetemperaturesetpointisnotsatisfield,circuittworeversingvalveandcircuit2compressorwillbeenergizedandrununtiltheheatingsetpointatthethermostatissatisfied.

■ Random Start Power-up Delay Timer –Intheeventofabuildingpoweroutage,thisfeaturepreventsmultipleunitsfromstartingsimultaneouslyuponbuildingpowerrestoration.

■ Unoccupied Mode –Asimple“grounded”signalbetweenterminalsUandC(nopowersourcerequired),putstheunitintotheunoccupiedmodefornightsetbackoperation.

■ Interstaging Timer –Adefaultvalueof5minutesbetweenstagingofcompressors,thisfeatureminimizesshortcyclingofcompressorsandimprovescomfort.

■ Override Mode –Aswitchonthedeluxeautomaticchangeoverthermostatcanbeactivatedduringtheunoccupiedmodetoputtheunitbackintotheoccupiedmodefortwohoursforafter-hoursheatingorcooling.

■ Motorized Valve/Pump Restart –TheIV/PR(H8)terminalsontheTheMicroTechIIIunitcontrollerareusedtoenergize(open)amotorizedvalveorstartawaterpumptogetwatercirculatingpriortostartingthecompressoroncallforheatingorcooling.TheIV/PR(H8)terminalmaybe“daisychained”betweenamaximumof200units.

■ Brownout Protection –TheMicroTechIIIunitcontrollermeasurestheinputvoltageandwillsuspendcompressorandfanoperationifthevoltagefallsbelow80%oftheunitnameplateratedvalue.AuniqueLEDstatusisgenerated.

■ Unit Shutdown –Asimplegroundedsignalputstheunitintotheshutdownmode.Compressorandfanoperationsaresuspended.AuniqueLEDstatusisgenerated.

■ Condensate Overflow Protection –TheMicroTechIIIcontrollerincorporatesaliquidsensoratthetopofthedrainpan.Uponsensingwaterflow,coolingoperationissuspended.AuniqueLEDstatusisgenerated.

■ Remote Reset of Automatic Lockouts –TheRemoteResetfeatureprovidesthemeanstoremotelyresetautomaticlockoutsgeneratedbyhigh-pressureand/orlow-temperaturefaults.WhentheMicroTechIIIcontrollerisinautomaticlockoutduetooneofthesefaults,andthecauseofthefaultconditionhasbeenalleviated,energizingtheO-terminalfor10secondsormorewillforcethecontrolboardtoclearthelockout.Aunitpowercyclecanalsobeusedtoclearanautomaticlockoutiftheconditionscausingthefaulthavebeenalleviated.

■ Intelligent Reset –TheFaultRetryfeaturehelpstominimizenuisancetripsofautomaticlockoutscausedbyhigh-pressureand/orlow-temperaturefaults.Thisfeatureclearsfaultsthefirsttwotimestheyoccurwithina24-hourperiodandtriggersanautomaticlockoutonthe3rdfault.Theretrycountisresettozeroevery24hours.

■ Equipment Protection Control –TheMicroTechIIIcontrollerreceivesseparateinputsignalsfromtherefrigeranthigh-pressureswitchandthelowsuctionlinetemperaturesensor.Inahigh-pressuresituation,compressoroperationissuspended.Inalowtemperaturesituation,theunitgoesintoadefrostcyclewheretheunitisputintocoolingoperationfor60secondsuntilthecoaxialheatexchangerisfreeofice.EachswitchgeneratesitsownuniqueLEDstatus.


Note: Most unit fault conditions are the result of operating the equipment outside the unit specifications.

Table 1: MicroTech III Controller LED & Fault Outputs Status LED’s Thermostat Alarm

Mode / Fault Light Yellow Green Red Output-Terminal “A” Occupied, Bypass, Standby, or Tenant Off On Off Energized Override Unoccupied On On Off Energized Condensate Overflow On Off Off De-energized High Pressure 1 Fault Off Off Flash De-energized Low Pressure 1 Fault Off Off On De-energized Low Temperature 1 Fault Flash Off Off De-energized Brownout Off Flash Off De-energized Emergency Shutdown Off Flash Off De-energized Room/Return Air or Low

Flash Flash On De-energized Temp Sensor 1 Failure

Service Test Mode Flash Flash Flash De-energized

Enabled 1

Serial EEPROM On On On De-energized Corrupted Network “Offline” Off Off Off De-energized Received

Note: 1 Compressor relay/compressor terminal is labeled COMP, switched line of the same electric input as any of the L1 terminals.

I/O Expansion Module

TheI/OExpansionModuleisfactory-installedforcontrolofthesecondrefrigerationcircuit.TheI/OExpansionModulehasanindependentLEDan-nunciatortoidentifyoperationalfaultconditionsfortheelectricheater.

Control FeaturesTable 2: I/O Expansion Module LED & Fault Status LED's

Thermostat

Mode / Fault Alarm

Yellow Green Red Light Output

Terminal “A”

Invalid Configuration Flash Flash Off De-energized Jumper Setting

Base Board Off Flash Flash N/A Communication Fail

High Pressure #2 Fault Off Off Flash De-energized

Low Pressure #2 Fault Off Off On De-energized

Low Suction Temp #2 Fault Flash Off Off De-energized Sensor Failures Low Suction

Low Suction Temp #2, Flash Flash On De-energized

1 EWT (w/ Boilerless EH only)

2 Service Test Mode Enabled Flash Flash Flash De-energized

Unoccupied Mode On On Off Energized

Occupied, Bypass, Standby, or Tenant Off On Off Energized Override Modes Normal Operation Off On Off De-energized

Note: Mode / Faults are listed in order of priority. 1 Boilerless electric heat only 2 Alarm/fault LED indications take precedence over

service test mode LED indication. The controller shall use service test mode if the service test mode jumper is installed, even if the LED’s indicate an alarm/fault.

Figure 3: I/O Expansion Module Configuration Jumper Terminals

Jumper Terminals

JP1 shorted in units with 2 compressors

JP1 through JP8 not used with 2 circuit units.


Control Features

MicroTech® III Controller with LonWorks® or BACnet® Communication ModuleEachEnfinityLargeVerticalandHorizontalWaterSourceHeatPumpcanbeequippedwithaLonWorksorBACnetcommunicationmodule.TheLonWorksmoduleisLon-Mark3.4certifiedanddesignedtocommunicateoveraLonWorkscommunicationsnetworktoaBuildingAuto-mationSystem(BAS).TheBACnetmoduleisdesignedtocommunicateoveraBACnetMS/TPcommunicationsnet-worktoabuildingautomationsystem.Bothcontrollersaremicroprocessor-basedandcanbefactoryorfield-installed.Thecontrolmodulesareprogrammedandtestedwithallthelogicrequiredtomonitorandcontroltheunit.OptionalwallsensorsmaybeusedwiththecommunicationmodulestoprovidelimitedlocalcontroloftheHorizontalWaterSourceHeatPump.TheMicroTechIIIcontrollermonitorswaterandairtemperaturesandpassesinformationtothecommunicationmodule.ThemodulecommunicateswiththeBAS,toprovidenetworkcontroloftheWaterSourceHeatPump.

MicroTech III LonWorks Communication ModuleTheLonWorksscommunicationmoduleisdesignedforunitsthatareintegratedintoaLonWorkscommunicationnetworkforcentralizedschedulingandmanagementofmultipleheatpumps.

MicroTech III BACnet Communication Module

Designedtobelinkedwithacentralizedbuildingauto-mationsystem(BAS)throughaBACnetcommunicationsnetworkforcentralizedschedulingandmanagementofmultipleheatpumps.

MicroTech III Controller with Communication Modules FeaturesTheMicroTechIIIControllerwithLonWorksorBACnetCommunicationModuleorchestratesthefollowingunitoperations:

■ Enableheatingandcoolingtomaintainspace temperaturesetpointbasedonaroomsensorsetting■ Enablefanandcompressoroperation■ Monitorsallequipmentprotectioncontrols■ Monitorsroomanddischargeairtemperatures■ Monitorsleavingwatertemperature■ Relaysstatusofallvitalunitfunctions

Anamber,on-boardstatusLEDindicatesthestatusoftheMicroTechIIILonWorksorBACnetmodule.TheMicroTechIIIunitcontrollerwithcommunicationmoduleincludes:■ ReturnAirTemperaturesensor(RAT)(field-installed)■ DischargeAirTemperaturesensor(DAT)

(field-installed)■ LeavingWaterTemperaturesensor(LWT)

When an optional wall-mounted room temperature sensor is connected to the unit controller, the Return Air Temperature (RAT) sensor must not be installed. A wall-mounted room temperature sensor and the return air temperature sensor must not be connected simultaneously or the unit will not operate properly.

CAUTION

Thecommunicationmodulesprovidenetworkaccesstosetpointsforoperationalcontrol

Available Wall Sensors Include:■ Roomsensor■ RoomsensorwithLEDstatusandtenantoverride button■ TemperaturesensorwithLEDstatus,timed-override button,and±3°Fsetpointadjustment■ RoomsensorwithLEDstatus,timed-override button,55°to90°Fsetpointadjustment


Unit LocationLargeVerticalWaterSourceHeatPumpunitsareeasilylocatedinequipmentroomsorfloor-by-floorinstallations.Theycanbeappliedtoallbuildingtypeswhereitisadvan-tageoustoextendthewatersourceheatpumpconcepttolargerorcoreareas.Locatetheunitinanareathatallowsforeasyremovalofthefilterandaccesspanels,andhasenoughspaceforservicepersonneltoperformmaintenanceorrepair.Providesufficientroomtomakewater,electricalandductconnections.Figure 4: Service Clearances

Control BoxLocation

PipingLocation

Fan Motor

24"(610 mm)

Side B

Side A

24" (610 mm)

Thecontractorshouldmakesurethataccesshasbeenprovidedincludingclearancefor2"(51mm)thickfilterbrackets,ductcollarsandfittingsatwaterandelectricalconnections.Allowadequateroomaroundtheunitforacondensatetrap.Theunitcanbeinstalled“freestanding”inanequipmentroom.Generally,theunitislocatedinaseparateroomwiththenon-ductedreturnairfacingthereturnairintake.Alternatively,theunitcanhaveaductedreturnair.Itisrecommendedthattheunitbelocatedonvibrationisolatorstoreduceanyvibration(seeFigure6onpage12).

IMPORTANT1. A 24" (610 mm) minimum clearance is required on the return air, control box and piping sides. However, a 36" (914 mm) clearance allows for easier serviceability.2. A 12" (305 mm) minimum clearance is required on Side A to gain access to panel to remove locking collar for shaft removal.3. A 6" (152 mm) clearance is required on Side B to remove screws holding top panel.4. Top clearance is required for fan shaft removal.5. Some codes dictate a 60" (1524 mm) clearance above the control box which could be violated with a ducted return. Check your local codes.

Fan Deck ArrangementsSixfandischargearrangementsandtwopipingarrange-mentsareavailable.Withthereturnairsidedefinedasthe“front”oftheunit,thewaterpipingconnectionsmayberight-hand(side)orleft-hand.AllunitshaveasinglesupplyandreturnwaterconnectionwithacopperFPTtypefittingthatprotrudesthroughtheunitcasingforeasyconnection.ThecondensateconnectionisalsoacopperFPTtypeandislocatedonbothsidesoftheunit.Theunusedconnectionisplugged.

Applications

Themaincontrolpanelislocatedinthecenterfrontoftheunit.Thefandischargeistopfront,andthefanmotorisalwayslocatedatthepipingend.Unitsidesoppositethecontrolpanelandoppositethepipingsidemaybeupagainstwallsandstillallowforserviceandmaintenancethroughtheremainingaccesspanels.Figure 5: Fan Deck Arrangements

Fan Motor

Rear (or Top) Discharge

Right-Hand Piping(Upblast-Rear)

Front (or Top) Discharge

Right-Hand Piping(Upblast-Front)

Front (or Top) Discharge

Left-Hand Piping(Upblast-Front)

Rear (or Top) Discharge

Left-Hand Piping(Upblast & Rear)

Straight Horizontal Discharge

Left-Hand Piping(Top-Horizontal Discharge)

Straight Horizontal Discharge

Right-Hand Piping(Top-Horizontal Discharge)

Notes: 1. The hand of unit is determined by looking at

the return air (filter) side. The piping and electrical connections are always made on the “hand” side of the unit. The return air (filter) side is considered the “front” of the unit.

2. The fan motor is always located at the piping/ electrical connection (hand) side of the unit.


Applications

Vibration IsolatorsForminimumsoundandvibrationtransmission,itisrec-ommendedthattheunitbemountedonvibrationisolators.Holesareprovidedinthebottompaneltofacilitateconnec-tionofisolators(seeFigure6&Figure7forholelocations).IsolatorssuppliedbythemanufacturerarethetypeshowninFigure6.Fourwhiteisolatorsareusedforsinglecompressorunitsandsixgreenisolatorsareusedfordualcompressorunits.Theholesinthebottomoftheunitallowfora3⁄8"(10mm)bolttobesecuredtotheisolator.

Figure 6: Vibration Isolator Dimensions

4½" (114 mm)5½" (140 mm)

2½" (64 mm)

2⅝" (61 mm)

7/16" (11 mm)

3/8" (10 mm) TAP

Figure 7: Vibration Isolators Locations - Single Compressor Unit

3" (76 mm)

3" (76 mm)

3" (76 mm) 3" (76 mm)

Section A-A

2" (51 mm)

A A

285/32" (715 mm)

(4) 7/16" (11 mm) holes

7/16" (11 mm)

1/4" (6 mm)

5423/32" (1390 mm)

Figure 8: Vibration Isolators Locations - Dual Compressor Unit

2" (51 mm)

2" (51 mm)

301/8" (765 mm)

31/4" (83 mm) 31/4" (83 mm)

(6) 3/8" (19 mm) holes

803/8" (2042 mm)

403/16" (1021 mm)


Applications

Ductwork and AttenuationDischargeductworkisnormallyusedwiththesecondi-tioners.Returnairductworkmayalsoberequiredbutwillrequirefieldinstallationofareturnairductcollar.AllductworkshouldconformtoindustrystandardsofgoodpracticeasdescribedinASHRAESystemsGuide.Thedischargeductsystemwillnormallyconsistofaflex-ibleconnector,atransitionpiecetothefinalductsize,ashortrunofduct,anelbowwithoutvanesandatrunkducttee’dintobranchductswithdischargediffusers.Transfor-mationductmustnothaveanglestotallingmorethan30degreesorseverelossofairperformancecanresult.Allunitshavemultiplefanoutlets.Thepreferredmethodforminimumstaticpressurelosswouldbeindividualductsateachoutletconnectedtoalargermainductdownstream(Figure9).Forminimumnoisetransmission,themetalductmaterialshouldbeinternallylinedwithacousticfibrousinsulation.

Theductworkshouldbelaidoutsothatthereisnolineofsightbetweentheconditionerdischargeandthedistributiondiffusers.Returnairductscanbebroughtinadjacenttothereturnairoftheconditioner.Typically,theequipmentroombecomesthecommonreturnairplenum.Donotinsertsheetmetalscrewsdirectlyintotheunitcabinetforconnectionofsupplyorreturnairductwork,especiallyreturnairductworkwhichcanhitthedrainpanortheaircoil.Notes: 1. Transformations to supply duct have maximum

slope of 1" to 7". 2. Square elbows with double thickness vanes may

be substituted. 3. Do not install ducts so that the air flow is counter

to fan rotation. If necessary, turn fan deck assembly and motor.

4. Transformations and units shall be adequately supported so no weight is on the flexible connection.

Figure 9: Suggested Supply Ducting per ASHRAE and SMACNA Publications

Flexible Connector

Flexible Connector Flexible Connector

Note 2

Note 2

Note 2Note 1

Note 1Note 1

Fan Rotation(See Note 3)

Transformation Duct

Flexible Connector

Main Duct

Branch Duct

Trunk Duct

DistributionDiffuser

Note 2





Typical Cooling and Heating Refrigeration Cycles – Dual CompressorsNote: Typical temperature readings are at full load conditions at ISO-13256 for boiler-tower applications.

Applications

Figure 10: Cooling Refrigeration CycleWhenthewallthermostatcallsforCOOLING,therevers-ingvalve(de-energized)directstheflowoftherefrigerant,ahotgas,fromthecompressortothewater-to-refrigerantheatexchanger(coaxialheatexchanger).There,theheatisremovedbythewater,andthehotgascondensestobecomealiquid.Theliquidthenflowsthroughathermalexpansionvalvetotheair-to-refrigerantheatexchangercoil(evapora-tor).Theliquidthenevaporatesandbecomesagas,atthesametimeabsorbingheatandcoolingtheairpassingoverthesurfacesofthecoil.Therefrigerantthenflowsasalowpressuregasthroughthereversingvalveandbacktothesuctionsideofthecompressortocompletethecycle.

Figure 11: Heating Refrigeration CycleWhenthewallthermostatcallsforHEATING,thereversingvalve(energized)directstheflowoftherefriger-ant,ahotgas,fromthecompressortotheair-to-refrigerantheatexchangercoil(condenser).There,theheatisremovedbytheairpassingoverthesurfacesofthecoilandthehotgascondensesandbecomesaliquid.Theliquidthenflowsthroughathermalexpansionvalvetothewater-to-refriger-antheatexchanger(evaporator).Theliquidthenevaporatesandbecomesagas,atthesametimeabsorbingheatandcoolingthewater.Therefrigerantthenflowsasalowpres-suregasthroughthereversingvalveandbacktothesuctionsideofthecompressortocompletethecycle.


SystemsWatersourceheatpumpsystemsareoneofthemostef-ficient,environmentallyfriendlysystemsavailableforheat-ingandcoolingbuildings.High-efficiency,selfcontainedunits(sizes7,000btuhto290,000btuh)canbeplacedinvirtuallyanylocationwithinabuilding.Eachunitrespondsonlytotheheatingorcoolingloadoftheindividualzoneitserves.Thispermitsanexcellentcomfortlevelforoccu-pants,bettercontrolofenergyuseforbuildingownersandlowerseasonaloperatingcosts.TheAir-ConditioningRe-frigerationInstitute(ARI)andtheInternationalStandardsOrganization(ISO)publishstandardssothatwatersourceheatpumpsareratedforspecificapplications.TheARI/ISOloopoptionsshowninthiscatalogaretypicalwatersourceheatpumploopchoicesavailableintoday’smarket.Thesesystemsofferbenefitsrangingfromlowcostinstallationtothehighestenergyefficiencyavailableinthemarkettoday.

Boiler / Tower Applications: ARI 320 / ISO 13256-1A“Boiler/Tower”applicationusesasimpletwo-pipewatercirculatingsystemthataddsheat,removesheatortrans-fersrejectedheattootherunitsthroughoutthebuilding.Thewatertemperatureforheatingisgenerallymaintainedbetween65ºF–70ºFandisusuallyprovidedbyanaturalgasorelectricboilerlocatedinamechanicalroom.Thecondensingwatertemperature,duringcoolingmonths,ismaintainedbetween85ºFand95ºFandrequirestheuseofacoolingtowertodissipatewasteheat.Coolingtowerscanbelocatedontheroof,orinsideoradjacenttothebuilding.Thisapplicationcanbethelowestcostoftheloopoptionsavailable.Note:ASHRAE90.1standardsrequirethatcirculatingpumpsover10HPwillrequireuseof“variablefrequencydrive”equipmentandpipeinsulationtobeusedwheneverwatertemperaturesarebelow60degreesandabove105degrees.SeeASHRAE90.1Standardsfordetails.Figure 12: Boiler/Tower Application

Applications

Open Loop Well Water Applications: ARI 325 / ISO 13256-1 “OpenLoop”wellwatersystemsusegroundwatertore-moveoraddheattotheinteriorwaterloop.Thekeybenefitofanopenloopsystemistheconstantwatertemperature,usually50ºFto60ºF,whichprovidesefficientoperationatalowfirstcost.Mostcommercialdesignersincorporateaheatexchangertoisolatethebuildingloopfromthewellwater.Usingheatexchangerscanreducemaintenanceissueswhilestillallowingthetransferofheatfromunittounitaswiththe“Boiler/TowerSystem”.Asuccessfuldesignprovidesanampleamountofgroundwater(approxi-mately2GPMperton)andadequateprovisionsfordis-chargingwaterbacktotheaquiferorsurface.OpenLoopapplicationsarecommonlyusedincoastalareaswheresoilcharacteristicsallowreinjectionwellstoreturnthewaterbacktotheaquifer.Notethatsomestateshaverequire-mentsonthedepthsofreturnwaterreinjectionwells,andsuchwellsmustbeapprovedbytheUnitedStatesEnvi-ronmentalProtectionAgency.Also,badwaterqualitycanincreaseproblemswithheatexchangerscaling.Suspendedsolidscanerodetheheatexchanger.Strainerscanbeusedtocontainsuspendedsolids.Figure 13: Open Loop Well Application


Applications

Closed Loop Geothermal Applications: ARI 330/ISO 13256-1 “VerticalClosedLoop”applicationsareinstalledbydrill-ingverticalboreholesintotheearthandinsertingaplasticpolyethylenesupply/returnpipeintotheholes.Theverticalwellsareconnectedinparallelreversereturnfashiontoal-lowthewaterfromthebuildingtocirculateevenlythrough-outtheborefield.Thecirculatingfluiddissipatesheattothegroundinasimilarmannerasa“tower”andaddsheatbacktothelooplikeaboiler.Ifproperlydesigned,theloopfieldcanmaintainthelooptemperaturesnecessarytoconditionthebuildingwithouttheuseofaboileroratower.Looptemperaturesusuallyrangefrom37ºFto95ºFinNorthernclimates.Southernapplicationscanseetemperaturesrang-ingfrom40ºFto100ºF.Thenumberofboreholesandtheirdepthshouldbedeterminedbyusingcommercialsoftwarethatisspecificallydesignedforverticalgeothermalapplica-tions.Typicalboredepthsofaverticallooprangefrom150to400feetandgenerallyrequireabout250feetofsurfaceareapertonofcooling.Figure 14: Vertical Loop Application

Aclosedloop“Horizontal”geothermalapplicationissimilartoaverticalloopapplicationwiththeexceptionthattheloopsareinstalledintrenchesapproximately5feetbelowthegroundsurface.Thepipingmaybeinstalledusinga“four-pipe”or“six-pipe”designandcouldrequire1,500to2,000squarefeetofsurfaceareapertonofcooling.Looptemperaturesforacommercialapplicationcanrangefrom35ºFto95ºFinNorthernclimates.Southernclimatescanseetemperaturesrangingfrom40ºFto100ºF.Horizontalloopsaregenerallynotappliedinurbanareasbecauselanduseandcostscanbeprohibitive.Newadvancesininstallationprocedureshaveimprovedtheassemblytimeofhorizontalloopswhilekeepingthefirstcostlowerthanaverticalloop.

Figure 15: Horizontal Loop Application

A“SurfaceWater”or“Lake”closedloopsystemisageothermalloopthatisdirectlyinstalledinalakeorbodyofwaterthatisnearthebuilding.Inmanycases,thebodyofwaterisconstructedonthebuildingsitetomeetdrain-ageoraestheticrequirements.Surfaceloopsusebundledpolyethylenecoilsthatareconnectedinthesamemannerasaverticalorhorizontalloopusingaparallelreversereturndesign.Thesizeandthedepthofthelakeiscritical.Commercialdesignservicesshouldbeusedtocertifythatagivenbodyofwaterissufficienttowithstandthebuildingloads.Looptemperaturesusuallyrangefrom35ºFto90ºFandprovetobethebestcoolingperformerandlowestcostloopoptionofthethreegeothermalloops.Someapplica-tionsmaynotbegoodcandidatesduetopublicaccessordebrisproblemsfromflooding.Figure 16: Surface Water Loop Application


ISO Performance Data

Table 3: Water Loop

Cooling Heating

Unit Size Airflow Waterflow Voltage CFM L/S GPM L/S Btuh Watts EER COP Btuh Watts COP

208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3

21317

25328

35049

55400

64653

90420

72800

86500

119700

189200

220800

308800

18.5

22.2

30.0

46.0

54.0

80.0

1.17

1.40

1.89

2.90

3.40

5.04

072

096

120

180

215

290

2300

3600

4000

6000

7167

9670

1085

1699

1888

2832

3382

4564

13.1

13.0

14.0

14.9

14.2

11.0

3.8

3.8

4.1

4.4

4.2

3.2

88500

100800

150200

209800

254800

422100

25914

29515

43980

61432

74608

123595

4.6

4.7

5.3

4.9

4.9

4.1

Table 4: Ground Loop

Cooling Heating


208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3

21814

26119

36074

55985

67112

94402

74500

89200

123200

191200

229200

322400

18.5

22.2

30.0

46.0

54.0

80.0

1.17

1.40

1.89

2.90

3.40

5.04

072

096

120

180

215

290

2300

3600

4000

6000

7167

9670

1085

1699

1888

2832

3382

4564

14.6

14.6

15.9

16.1

16.3

12.4

4.3

4.3

4.7

4.7

4.8

3.6

59100

69700

98000

132000

147600

260728

17305

20409

28695

38651

43219

76344

3.4

3.6

3.9

3.6

3.7

3.3


ISO Performance Data

Table 5: Ground Source

Cooling Heating


18.5

22.2

30.0

46.0

54.0

80.0

1.17

1.40

1.89

2.90

3.40

5.04

072

096

120

180

215

290

2300

3600

4000

6000

7167

9670

1085

1699

1888

2832

3382

4564

82800

97100

133800

198200

244700

348100

24245

28432

39178

58035

71651

101927

208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3208-60-3230-60-3460-60-3575-60-3

19.7

19.5

20.7

19.7

21.5

16.2

5.8

5.7

6.1

5.8

6.3

4.7

74600

88700

123700

171000

196500

343800

21844

25972

36221

50071

57537

100668

4.1

4.7

5.3

4.9

4.9

4.1


EWT GPM WPD

Cooling Heating EA (DB/WB) TOT SEN kW EER THR EA (DB) TOT kW COP THA 20 30 40 50 60 70 80 85 90

636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771

758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

12.0

18.0

24.0

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

7.4

14.2

22.7

87556935479977388386945281009208876994993101470846429033596254855439139197474859749189198060814608685092458824208796993747828828850494365780268312488419790588429189760795488485490404743507918584156754148040885534759278098886200704437497579655715577625181097720977685981787683917277177280695357407378759700887469679469662727049574829674457182176343680127246077059

599766151562880603646193763333605396213863548586236014561508590406059361981592396080662209571645867760049576035914760542578145937260779556025712058515560735761159023562945784559268539365548156891544095598857413546415622957666521915375655208526865427655743529265452556001512735285254315517855338654871520335364255138503255191853400508495246053964511035272354233

3.043.143.242.912.993.092.842.923.013.493.593.693.363.443.533.293.373.463.984.074.173.833.914.003.763.843.924.504.594.704.344.434.524.274.354.435.085.185.294.915.005.094.824.915.005.745.855.965.555.645.745.455.545.646.106.226.335.906.006.105.805.895.996.496.616.736.286.386.486.176.276.37

28.829.830.830.431.632.731.332.533.724.225.226.125.526.627.626.127.328.420.521.422.221.522.523.422.023.124.017.418.118.818.219.019.918.619.520.414.615.315.915.416.116.815.716.517.212.312.813.412.913.514.113.213.914.511.211.712.211.812.412.912.112.713.310.210.711.110.711.311.811.011.612.1

979331042511108219830110474411145798459104975111758965701025781088329700110313710952597205103397109858950271007321066799549010132410740795715101607107759933759880010444493871993941051779410799686105531916859686710220492158974581029109239097740103257900329493210000490484955041006959071195778101031892259398398894896669454099581898879480999918884389305297796888669358798475890819385298793

607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080

47194469794675948641482764790349472490184855554373538325328556297552635481657409565545569261584613456044663567635976244265306643986237869086682856741372736713687016674916731617167680320785987684284133820257988086342840008161890204880248578594755921098939997386944599146210054097865950931058701026509930810893010537010170010585010292099864111560108030104360114860110950106910111230108030104670117350113490109460120850116610112170

3.594.144.793.604.164.803.614.174.813.674.234.883.694.244.903.704.264.913.744.324.983.764.355.013.784.355.013.824.405.083.864.445.123.904.475.143.964.555.224.014.595.274.034.625.304.084.685.374.144.745.434.184.775.464.224.825.534.294.905.604.344.945.644.294.905.614.384.985.694.435.035.744.374.985.704.465.085.794.525.135.84

2.92.41.93.02.42.03.12.52.03.42.82.23.52.92.33.62.92.43.93.22.64.03.32.74.13.42.74.33.62.94.63.73.14.73.83.15.04.13.45.24.33.55.34.43.65.54.63.75.74.73.95.94.84.06.05.04.16.35.24.26.45.34.36.35.24.36.55.44.46.65.54.56.55.44.46.75.64.66.95.74.7

3494932837304253634034077315113713934786321314185539395366284370740783380854477742002389194882746591434425072548747453395239349535452895604953253500885954756206526756161257900541186680063086590097045566353618857257168235635297626772066674688061675947708768312878178728198613681408762369121385939801979412288509824409119486194807199662091019849319975293773873169630791020852211021139616689699

1054269910392230

Operation Not Recommended

Capacity Data

Size 072 @ 2300 SCFM


Capacity Data

Size 072 @ 2300 SCFM (continued)


636771636771636771636771636771636771

758085758085758085758085758085758085

12.0

18.0

24.0

12.0

18.0

24.0

7.4

14.2

22.7

7.4

14.2

22.7

618036568869656630566709271245636456776772005569306036863903582866193065643589176265566485

483464997451505489035054552084491655081352365462024783049384468024846350026470804875350334

7.367.487.617.127.227.337.007.107.208.358.478.598.088.188.297.958.058.15

8.48.89.28.99.39.79.19.510.06.87.17.47.27.67.97.47.88.2

869299122295612873439173996269875359199596587854418927793226858598986593947860439012494306

EWT GPM WPD

Cooling Heating EA (DB/WB) TOT SEN kW EER THR EA (DB) TOT kW COP THA 100 110

Notes: 1. Operation below 40°F EWT is based upon a 15% methanol antifreeze solution. 2. Performance stated is at the rated power supply; performance may vary as the power supply varies from the rated. 3. See performance correction tables for operating conditions other than those listed above. 4. Interpolation is permissible; extrapolation is not. 5. For performance data outside the EAT listed, refer to the McQuay Selection Tools selection program 6. Tables do not reflect fan or pump power corrections for AHRI/ISO conditions.

EWT (°F) = Entering Water Temperature

GPM = Water flow rate in Gallons Per Minute

WPD (ft. of Water) = Water Pressure Drop

EAT (°F), Cooling = Entering Air Temperature, Dry Bulb-Wet Bulb

EAT (°F), Heating = Entering Air Temperature, Dry Bulb-Wet Bulb

Total (Btu/hr) = Total Cooling/Heating Capacity

Sensible (Btu/hr) = Sensible Cooling Capacity

Power Input (kW) = Total Power Input to unit

THR (Btu/hr) = Total Heat of Rejection

EER = Energy Efficiency Ratio

THA (Btu/hr) = Total Heat of Absorption

LAT (°F) = Leaving Air Temperature

COP = Coefficient of Performance


EWT GPM WPD


Cooling Capacity Data


16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

16.0

24.0

32.0

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

11.8

22.7

36.1

636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771

758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085

10363011068011792010404011115011847010424011139011875010015010684011376010059010736011435010081010761011464096328102690109280968021032301099009703410350011021092210982431044809270398812105120929469909210544087855935569943388370941361001008862494424100430832448858694113837798919194795840438948995130808608600291352813998661592038816628691892377784108336588508789588398889208792258429589554

755107783679938756927801680147757817811380250739767627578392741737648378611742697658678718722967459876753725047481676981726067492477093704537278374953706717301675189707767312975308685597090473111687837113573353688947125073473665266890271155667656914871409668836927071534654746785970156657106810470404658256822570529644226682369129646486707169382647636719369506

3.153.243.343.093.183.273.063.153.243.643.733.823.583.663.753.553.633.724.154.234.334.084.174.264.054.134.224.704.784.884.634.714.804.604.684.775.315.405.495.235.325.415.205.285.375.996.096.195.916.006.105.875.966.056.376.476.576.286.386.486.246.336.436.776.886.986.686.786.886.646.736.83

32.934.135.333.735.036.234.135.436.627.528.729.828.129.330.528.429.630.823.224.325.323.724.825.823.925.026.119.620.521.420.021.021.920.221.222.116.617.318.116.917.718.517.117.918.713.914.615.214.214.915.514.315.015.712.713.313.913.013.614.213.113.714.411.612.112.711.812.413.011.912.513.1

114373121744129322114577122001129647114675122135129815112563119558126797112796119859127157112915120002127337110481117141124048110743117454124429110869117612124621108240114574121134108503114898121514108634115060121707105961111975118186106224112288118569106356112446118760103692109363115239103947109671115608104075109824115789102599108078113788102843108377114141102963108527114317101532106831112341101768107123112690101882107268112864

607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080

537915303152199537915303152199537915303152199635596257661503635596257661503635596257661503744657318071812744657318071812744657318071812865188488583150865188488583150865188488583150997289768695539997289768695539997289768695539114080111560108920114080111560108920114080111560108920129530126450123210129530126450123210129530126450123210137650134240130660137650134240130660137650134240130660145990142260138330145990142260138330145990142260138330

3.844.204.553.844.204.553.844.204.554.144.564.964.144.564.964.144.564.964.454.925.394.454.925.394.454.925.394.765.305.824.765.305.824.765.305.825.085.686.265.085.686.265.085.686.265.396.066.715.396.066.715.396.066.715.716.447.145.716.447.145.716.447.145.876.637.355.876.637.355.876.637.356.036.827.566.036.827.566.036.827.56

3.22.72.43.22.72.43.22.72.43.53.12.73.53.12.73.53.12.74.03.43.04.03.43.04.03.43.04.43.73.24.43.73.24.43.73.24.84.13.54.84.13.54.84.13.55.24.43.85.24.43.85.24.43.85.74.84.15.74.84.15.74.84.15.95.04.35.95.04.35.95.04.36.15.24.46.15.24.46.15.24.4

406843870036682406843870036682406843870036682494424702844568494424702844568494424702844568592945638353425592945638353425592945638353425702706680063284702706680063284702706680063284824027830374159824027830374159824027830374159956749087586034956749087586034956749087586034110043104470988411100431044709884111004310447098841117604111622105580117604111622105580117604111622105580125414118997112529125414118997112529125414118997112529



Capacity Data



636771636771636771636771636771636771

758085758085758085758085758085758085

16.0

24.0

32.0

16.0

24.0

32.0

11.8

22.7

36.1

11.8

22.7

36.1

732127783782530737837848483265740657879783629676017181276090682187249976879685217283877251

621356458466933623846484267200625066496967335596606214864558599326242564853600636256364980

7.677.787.897.577.677.777.527.627.728.708.818.928.598.698.798.538.638.73

9.510.010.59.710.210.79.910.310.87.88.28.57.98.38.78.08.48.8

994001043851094529961810466310979799728104794109971972981018751065259752310214910688997634102287107049

EWT GPM WPD

















EWT GPM WPD


636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771

758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085

138240148790159940139670150420161800140340151180162680133500143670154410135000145400156400135720146220157350128550138300148590130100140090150660130850140950151640123390132700142510125000134550144650125770135440145670118000126870136180119660128770138400120460129680139450112330120720129530114080122720131810114910123670132900109370117520126070111150119560128390112000120530129510106350114240122530108160116320124890109020117300126030

10549010825011077010613010891011147010643010923011181010343010621010877010409010690010949010440010723010983010131010411010670010198010481010743010230010514010778099112

10194010457099801102650105310100120103000105670968319970210237097535100410103130978681007701035009449997375100110952149812710087095557984861012409327796188989359401196947997289436297310

100100920409496197754927809573698549931289610598919

3.283.223.172.942.852.752.782.672.554.364.364.354.023.983.933.863.803.735.425.475.525.095.115.114.934.934.926.456.566.666.136.206.275.986.036.087.467.637.797.157.287.417.017.127.228.478.688.898.178.348.528.028.188.348.989.219.458.688.889.078.538.728.899.489.7410.009.189.419.639.049.259.46

41.745.850.247.653.159.250.957.264.629.131.433.932.335.338.634.037.441.221.523.024.623.525.427.424.626.728.916.517.518.617.819.120.518.519.921.412.813.614.413.814.715.714.315.316.410.010.611.310.811.512.211.211.912.78.99.49.99.510.210.89.910.511.37.88.38.88.49.09.58.79.39.9

149439159795170748149712160131171199149820160299171389148366158535169263148729158999169827148896159193170090147032156961167424147457157515168094147672157766168419145395155083165252145920155725166055146179156028166412143461152908162752144079153625163675144369153971164086141245150359159873141956151194160876142275151596161356140004148966158323140759149865159358141109150280159863138690147476156660139488148442157765139858148869158308

607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080

791657772676195791657772676195791657772676195926229121889309930299121889309930299121889309105900104410102750108400106150103770108400106150103770120450118680116710125080122570119640125350122570119640135950133850131550141790139280136550143920140510136940152590150020147270159600156610153400163510159870155580170110167100163950178410174860171140183210179240175170179110175910172510188320184330180330193420189150184760188450184850181270198420194160189760203910199260194550

5.095.566.025.095.566.025.095.566.025.466.026.555.486.026.555.486.026.555.816.457.065.876.507.105.876.507.106.176.887.566.286.987.666.286.987.666.537.308.056.667.458.216.717.488.226.907.738.547.057.918.737.147.988.797.288.169.047.448.359.237.558.459.347.458.379.277.658.569.477.758.689.607.658.579.507.858.799.717.968.909.83

3.63.12.83.63.12.83.63.12.84.03.53.04.03.53.04.03.53.04.43.83.34.53.83.34.53.83.34.84.13.64.94.23.64.94.23.65.24.43.85.34.53.95.34.53.95.54.74.15.74.84.25.84.94.25.95.04.46.15.24.56.25.34.56.15.24.56.35.44.66.45.44.76.35.44.66.45.54.86.65.64.8

618045875355659618045875355659618045875355659739717066266945743377066266945743377066266945860608240978652883538397479542883538397479542993859519790901

1036599873293509

1039109873193509113679108923104060119056113839108518121035114970108869129040123626118114135538129622123605139153132622125572145280139238133102153026146367139643157437150388143286153667147327140877162221155110147994166970159512152008162343155595148836171617164144156621176743168869160983


20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

20.0

30.0

40.0

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

7.0

13.8

22.2

Capacity Data Size 120 @ 4000 SCFM


Capacity Data



EWT GPM WPD


20.0

30.0

40.0

20.0

30.0

40.0

7.0

13.8

22.2

7.0

13.8

22.2

636771636771636771636771636771636771

758085758085758085758085758085758085

100020107400115090101890109550117570102790110580118740933001001201072009527010236010976096200103430110980

895069245995278902419323896094906059361696483868338983092698876319064493540879939102093931

10.4710.7811.0910.1810.4610.7410.0410.3010.5611.4511.8012.1511.1711.4911.8211.0411.3411.65

6.06.46.76.56.97.36.77.27.74.54.85.14.95.25.65.15.45.8

135751144175152923136624145243154212137050145744154795132386140383148682133407141569150091133873142133150745
















EWT GPM WPD


636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771

758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085

198540212980228450199310213950229770199640214380230360195070209210224310196290210620225940196820211240226630190510204230218890192020205980220920192700206770221830185130198410212570186880200420214880187670201320215930179000191850205510180950194060208040181860195080209210172190184590197760174320187010200500175300188130201750168560180710193640170770183210196480171790184370197780164790176680189320167070179270192260168130180470193630

129140132420135440129480132810135940129620132980136150127560130850133840128120131440134470128360131700134740125430128710131750126140129460132530126460129800132890122910126200129280123730127070130180124100127460130590120050123410126520120960124350127510121390124790127960116900120330123530117880121350124580118340121830125060115240118700121950116250119750123030116720120240123530113520117020120310114560118090121420115050118600121940

6.646.887.156.336.556.096.186.405.287.637.868.137.327.547.787.187.397.628.628.869.118.318.528.768.168.378.609.679.9010.169.339.559.789.189.399.6110.8011.0411.3010.4410.6610.8910.2810.4810.7012.0712.3112.5811.6711.8912.1211.4911.6911.9112.7713.0113.2812.3412.5612.8012.1512.3512.5813.5113.7614.0313.0613.2813.5212.8513.0613.28

29.930.931.931.532.637.732.333.543.625.626.627.626.827.929.027.428.629.722.123.124.023.124.225.223.624.725.819.220.020.920.021.022.020.421.522.516.617.418.217.318.219.117.718.619.514.315.015.714.915.716.515.316.116.913.213.914.613.814.615.414.114.915.712.212.813.512.813.514.213.113.814.6

221203236475252867220906236317250570220733236215248380221099236052252048221278236355252502221320236456252640219932234453249996220378235070250822220563235334251173218119232199247239218740233007248269219009233352248729215867229530244077216589230426245208216932230845245736213388226618240692214146227577241872214498228028242412212134225123238971212890226070240156213244226524240702210906223643237211211637224584238397211990225034238965

607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080

107450105500103630107450105500103630107450105500103630125530122880120340125530122880120340125530122880120340145740142320139020145740142320139020145740142320139020168500164190160070168500164190160070168500164190160070194140188850183810194140188850183810194140188850183810222880216500210400222880216500210400222880216500210400254840247250239940254840247250239940254840247250239940270300263770255800272000263770255800272000263770255800284280278310272390289960281020272390289960281020272390

7.728.599.577.728.599.577.728.599.578.159.0310.028.159.03

10.028.159.0310.028.639.5310.538.639.5310.538.639.5310.539.2010.1111.129.2010.1111.129.2010.1111.129.8810.7911.829.8810.7911.829.8810.7911.8210.6711.6012.6310.6711.6012.6310.6711.6012.6311.6112.5413.5711.6112.5413.5711.6112.5413.5712.0913.0714.1012.1413.0714.1012.1413.0714.1012.5213.5514.6612.7113.6414.6612.7113.6414.66

3.12.62.23.12.62.23.12.62.23.63.02.63.63.02.63.63.02.64.03.42.94.03.42.94.03.42.94.43.83.34.43.83.34.43.83.34.84.23.64.84.23.64.84.23.65.24.53.95.24.53.95.24.53.95.54.84.25.54.84.25.54.84.25.65.04.45.65.04.45.65.04.45.75.14.55.75.14.55.75.14.5

810867616670984810867616670984810867616670984977289205386135977289205386135977289205386135116281109782103078116281109782103078116281109782103078137096129681122111137096129681122111137096129681122111160436152017143485160436152017143485160436152017143485186456176916167301186456176916167301186456176916167301215218204437193612215218204437193612215218204437193612229054219162207680230576219162207680230576219162207680241542232060222345246598234467222345246598234467222345


30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

30.0

45.0

60.0

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

13.4

27.3

45.2

Capacity Data



Capacity Data



EWT GPM WPD


30.0

45.0

60.0

30.0

45.0

60.0

13.4

27.3

45.2

13.4

27.3

45.2

636771636771636771636771636771636771

758085758085758085758085758085758085

156830168180180210159270170930183330160390172200184770148330159070170450150910161980173740152090163330175280

109920113510116900111020114640118060111520115160118600106150109820113310107280111000114510107810111540115070

15.1715.4215.7014.6514.8715.1114.4114.6214.8517.0817.3417.6216.4816.7116.9516.2116.4216.65

10.310.911.510.911.512.111.111.812.48.79.29.79.29.710.29.49.910.5

208592220812233787209267221685234914209582222101235450206610218234230577207170219004231601207428219378232110
















EWT GPM WPD


636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771

758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085

248220266640286400250640269490289730251800270850291340240600258420277470242970261180280620244090262460282110232830250090268410235230252840271620236370254130273120224900241560259170227330244380262430228470245680263940216680232630249590219200235540252930220370236900254470208010223230239360210670226270242880211880227690244520203460218290234020206190221430237620207450222880239300198730213180228470201550216410232180202850217900233910

167200172280177060168350173490178320168890174050178920163680168750173610164750169900174790165260170450175350160270165430170300161310166510171450161810167020171990156890162130167080157920163220168210158400163720168730153450158730163800154500159820164940154990160340165470149900155220160340150980156350161520151480156880162070148060153410158560149160154560159760149670155100160320146140151550156740147280152720157960147810153270158530

7.667.958.307.257.527.847.067.327.628.929.229.558.538.809.118.358.608.8910.2010.5010.839.8110.0710.389.629.8710.1711.5511.8412.1811.1311.4011.7010.9311.1911.4813.0013.3113.6412.5512.8213.1212.3412.6012.8914.6314.9415.2814.1314.4014.7013.8914.1514.4415.5215.8316.1714.9915.2615.5714.7415.0015.2916.4816.7917.1315.9116.1816.4815.6515.9016.19

32.433.534.534.635.837.035.737.038.227.028.029.028.529.730.829.230.531.722.823.824.824.025.126.224.625.726.919.520.421.320.421.422.420.922.023.016.717.518.317.518.419.317.918.819.714.214.915.714.915.716.515.316.116.913.113.814.513.814.515.314.114.915.712.112.713.312.713.414.113.013.714.4

274348293783314714275390295166316485275895295828317352271056289878310074272086291208311697272575291813312467267653285916305373268697287216307037269203287828307813264303281980300727265306283275302359265784283865303114261063278040296150262030279291297722262486279890298450257946274207291497258882275407293061259300275987293804256443272318289215257341273512290743257764274072291475254966270471286928255841271629288440256250272174289166

607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080

129540127260125140129540127260125140129540127260125140153660150820148150153660150820148150153660150820148150180420176730173230180420176730173230180420176730173230210180205360200760210180205360200760210180205360200760243150236920230970243150236920230970243150236920230970272600268080263710279330271480263970279330271480263970301720296360291160310810304850299030315310308930299700316780311000305360326590320120313850331430324630318030332140325920319860342630335740328980347850340600333470

10.3711.5612.8910.3711.5612.8910.3711.5612.8911.1012.3413.7311.1012.3413.7311.1012.3413.7311.9013.1814.6111.9013.1814.6111.9013.1814.6112.8214.1215.5712.8214.1215.5712.8214.1215.5713.9015.2116.6613.9015.2116.6613.9015.2116.6614.9216.3417.8915.1616.4617.9015.1616.4617.9015.9917.4218.9616.3317.7519.2816.5017.9219.3016.5618.0019.5316.9518.3619.8817.1418.5520.0517.1718.6020.1317.5919.0120.5117.8019.2120.70

2.72.31.92.72.31.92.72.31.93.12.62.23.12.62.23.12.62.23.53.02.53.53.02.53.53.02.53.93.32.83.93.32.83.93.32.84.23.63.14.23.63.14.23.63.14.43.93.44.43.93.44.43.93.44.64.03.54.64.13.64.64.13.64.74.13.64.74.23.74.74.23.74.74.23.74.84.23.74.84.23.8

941518781981146941518781981146941518781981146

115789108710101293115789108710101293115789108710101293139819131747123369139819131747123369139819131747123369166432157162147620166432157162147620166432157162147620195723185015174113195723185015174113195723185015174113221692212325202665227603215292202891227603215292202891247160236923226460255076244266233241258982247783233822260257249566238704268736257444246017272931261329249603273546262438251173282599270869258969287088275026262824


35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

35.8

53.8

71.7

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

5.9

11.5

18.6

Capacity Data



Capacity Data



35.8

53.8

71.7

35.8

53.8

71.7

5.9

11.5

18.6

5.9

11.5

18.6

636771636771636771636771636771636771

758085758085758085758085758085758085

188670202320216730191700205790220690193100207380222520177560190490203960180880194220208220182410195940210180

142110147590152930143320148840154210143870149420154800137700143350148830139010144690150200139620145300150830

18.5918.9019.2417.9418.2218.5217.6517.9018.1921.0321.3421.6720.2920.5620.8519.9520.2020.48

10.110.711.310.711.311.910.911.612.28.48.99.48.99.410.09.19.710.3

252128266836282410252943267961283889253333268480284589249322263306277923250120264374279381250496264879280061

EWT GPM WPD

















EWT GPM WPD


636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771636771

758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085758085

364460389830416570366390392060419110367340393140420360351740376170401780353650378350404310354590379430405560338940362200386720340860364410389300341790365490390550325750347810371030327690350080373620328630351190374900311880332730354550313900335090357260314900336220358590297080316640337030299240319090339890300290320300341290289250308170327840291490310680330770292590311920332180281050299340318270283370301960321260284520303240322720

244600250480255680245500251430256670245940251890257150238770244720250000239640245640250970240070246090251450232970238930244300233840239840245270234260240290245740227080233040238460227950233960239420228370234420239890220970226950232410221860227900233400222290228360233890214480220500226030215420221470227070215880221960227580211100217160222740212060218140223790212540218630224290207580213710219340208580214730220400209070215230220920

15.9016.6117.3515.6916.3717.1215.5916.2617.0017.4118.1018.8617.1717.8518.5817.0517.7318.4519.1119.8120.5618.8419.5320.2618.7119.3920.1221.0321.7522.5020.7421.4222.1820.6021.2722.0223.2223.9524.7422.8923.5924.3622.7323.4224.1725.7126.4527.2625.3426.0726.8425.1525.8726.6327.0727.8328.6526.6827.4228.2026.4827.2127.9928.5129.3030.1228.1028.8629.6627.9028.6429.44

22.923.524.023.324.024.523.624.224.720.220.821.320.621.221.820.821.422.017.718.318.818.118.719.218.318.919.415.516.016.515.816.316.816.016.517.013.413.914.313.714.214.713.914.414.811.612.012.411.812.212.711.912.412.810.711.111.410.911.311.711.011.511.99.910.210.610.110.510.810.210.611.0

418730446506475789419947447931477523420549448639478384411174437935466142412255439275467734412792439953468526404145429798456895405147431056458434405644431661459202397512422026447836398469423197449317398938423778450037391137414454438988392034415592440390392481416163441086384821406904430072385708408053431478386137408601432175381633403164425609382532404258427013382980404798427720378361399334421056379268400446422493379732400992423192

607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080607080

267730262680257720270751265200258690271870265200258690268730263680258720272870266200259690272870266200259690304470264620293040311000303940296110311690303940296110346720339170331460354780346400337570358170347900337570391870382120372170401620390820379860406930394800381580439510427260414780451050437510423780457280443040427580489020474040458740502310485810468980509470492140474440514270497880480970528410510320491810536030517000497600539760521790503340554660534950514640562670541990520660

16.8918.4020.0816.8918.4020.0816.8918.4020.0818.1119.6821.4318.2519.7721.4718.2519.7721.4719.8120.7124.5020.0322.2124.6320.0522.2124.6321.2623.5526.1321.5523.8426.4021.6723.9026.4022.9225.2927.9523.2925.6628.3123.5025.8328.3924.8127.2529.9925.2927.7230.4425.5527.9730.6326.9329.4532.2627.5430.0332.8127.8730.3533.1128.0930.6533.4728.7731.2934.0829.1431.6434.4129.3231.9034.7430.0632.6135.4030.4733.0035.76

3.02.62.33.02.62.33.02.62.33.43.02.63.43.02.63.43.02.63.62.82.63.63.12.63.63.12.63.83.32.83.93.32.83.93.32.84.13.52.94.13.53.04.13.53.04.23.63.14.33.73.14.33.73.14.43.83.24.43.83.24.43.83.24.43.83.34.43.83.34.43.83.34.43.83.34.53.93.34.53.93.3

210101199881189190213109202401190160214228202401190160206914196499185573210593198715186416210593198715186416236862193927209418242644228144212055243253228144212055274149258784242282281226265044247484284200266340247484313641295809276773322118303256283245326725306659284688354851334256312428364752342912319892370085347572323036397094373524348654408326383304357006414353388549361449418389393289366747430232403527375512436592409006380176439698412926384786452058423649393823458676429364398615


48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

48.3

72.5

96.7

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

9.1

18.6

30.9

Capacity Data



Capacity Data



48.3

72.5

96.7

48.3

72.5

96.7

9.1

18.6

30.9

9.1

18.6

30.9

636771636771636771636771636771636771

758085758085758085758085758085758085

263480280340297810265970283200301020267180284600302590244050259390275130246750262480278680248070263950280410

200120206340212160201180207440213280201690207990213830191940198330204310193070199510205540193630200050206150

31.6732.4833.3431.2332.0032.8331.0131.7632.5835.2236.0336.9134.7235.5136.3534.4735.2736.08

8.38.68.98.58.99.28.69.09.36.97.27.57.17.47.77.27.57.8

371566391191411613372541392399413062373003392997413779364246382364401090365239383686402753365730384309403565

EWT GPM WPD

















13.213.213.213.26.06.04.24.26.06.0

13.713.713.713.76.26.24.24.26.16.1

15.615.615.615.67.87.85.85.87.87.8

25.025.025.025.012.212.29.09.0

12.212.230.130.130.130.116.716.712.212.216.716.751.351.351.351.323.123.119.919.921.821.8

Unit Size Voltage/Hz/Phase Fan Compressor 1 Compressor 2 Fan Motor Total Unit Minimum

Min. Circuit Maximum

Motor (HP) RLA LRA RLA LRA FLA FLA Voltage Amps Fuse Size88.088.088.088.044.044.030.030.046.046.083.183.183.183.141.041.033.033.043.043.0110.0110.0110.0110.052.052.038.938.951.551.5164.0164.0164.0164.0100.0100.078.078.0101.0101.0225.0225.0225.0225.0114.0114.080.080.0111.0111.0300.0300.0300.0300.0150.0150.0109.0109.0140.0140.0

88.088.088.088.044.044.030.030.046.046.083.183.183.183.141.041.033.033.043.043.0110.0110.0110.0110.052.052.038.938.951.551.5

164.0164.0164.0164.0100.0100.078.078.0

101.0101.0225.0225.0225.0225.0114.0114.080.080.0111.0111.0300.0300.0300.0300.0150.0150.0109.0109.0140.0140.0

072

096

120

180

215

290

208-60-3230-60-3208-60-3230-60-3460-60-3460-60-3575-60-3575-60-3380-50-3380-50-3208-60-3230-60-3208-60-3230-60-3460-60-3460-60-3575-60-3575-60-3380-50-3380-50-3208-60-3230-60-3208-60-3230-60-3460-60-3460-60-3575-60-3575-60-3380-50-3380-50-3208-60-3230-60-3208-60-3230-60-3460-60-3460-60-3575-60-3575-60-3380-50-3380-50-3208-60-3230-60-3208-60-3230-60-3460-60-3460-60-3575-60-3575-60-3380-50-3380-50-3208-60-3230-60-3208-60-3230-60-3460-60-3460-60-3575-60-3575-60-3380-50-3380-50-3

1.51.522

1.52

1.52

1.52

1.51.522

1.52

1.52

1.52223323232333553535353355353535

7.57.510107.5107.5107.510

13.213.213.213.26.06.04.24.26.06.013.713.713.713.76.26.24.24.26.16.115.615.615.615.67.87.85.85.87.87.825.025.025.025.012.212.29.09.012.212.230.130.130.130.116.716.712.212.216.716.751.351.351.351.323.123.119.919.921.821.8

5.85.87.47.42.83.32.02.32.83.35.85.87.47.42.83.32.02.32.83.37.47.411.011.03.35.02.94.23.35.011.011.017.317.35.07.34.25.85.07.311.011.017.317.35.07.34.25.85.07.3

24.424.429.329.310.613.38.7

10.610.613.3

32.232.233.833.814.815.310.410.714.815.333.233.234.834.815.215.710.410.715.015.538.638.642.242.218.920.614.515.818.920.661.061.067.367.329.431.722.223.829.431.771.271.277.577.538.440.728.630.238.440.7

127.0127.0131.9131.956.859.548.550.454.256.9

187.0187.0187.0187.0416.0416.0520.0520.0342.0342.0187.0187.0187.0187.0416.0416.0520.0520.0342.0342.0187.0187.0187.0187.0416.0416.0520.0520.0342.0342.0187.0187.0187.0187.0416.0416.0520.0520.0342.0342.0187.0187.0187.0187.0416.0416.0520.0520.0342.0342.0187.0187.0187.0187.0416.0416.0520.0520.0342.0342.0

35.535.537.137.116.316.811.511.816.316.836.636.638.238.216.817.311.511.816.517.042.542.546.146.120.922.616.017.320.922.667.367.373.673.632.534.824.526.132.534.878.778.785.085.042.644.931.733.342.644.9

139.8139.8144.7144.762.665.353.555.459.762.4

45455050202015152020505050502020151520205050606025302020253090909090404530354045100110100110506040455060175175175175808070708080

Electrical Data

Table 6: Large Vertical Unit


Operating Limits

Table 7: Air Limits - °F (English units) Standard Range Geothermal Range Units Units Cooling Heating Cooling Heating Min. Ambient Air 50ºF 50ºF 40ºF 40ºF Normal Ambient Air 80ºF 70ºF 80ºF 70ºF Max Ambient Air 100ºF 85ºF 100ºF 85ºF Min. Entering Air 1,2 50ºF 50ºF 50ºF 40ºF Normal Entering Air db/wb 80/67ºF 70ºF 80/67ºF 70ºF Max Entering Air db/wb 1,2 100/83ºF 80ºF 100/83ºF 80ºF

Table 8: Air Limits - °C (SI units) Standard Range Geothermal Range Units Units Cooling Heating Cooling Heating Min. Ambient Air 10ºC 10ºC 5ºC 5ºC Normal Ambient Air 27ºC 21ºC 27ºC 21ºC Max Ambient Air 38ºC 29ºC 38ºC 29ºC Min. Entering Air 1,2 10ºC 10ºC 10ºC 5ºC Normal Entering Air db/wb 27/19ºC 21ºC 27/19ºC 21ºC Max Entering Air db/wb 1,2 38/28ºC 27ºC 38/28ºC 27ºC

Table 9: Water - °F (English units) Standard Range Geothermal Range Units Units Cooling Heating Cooling Heating Min. Entering Water 1,2 55ºF 55ºF 30ºF 20ºF Normal Entering Water 85ºF 70ºF 77ºF 40ºF Max Entering Water 110ºF 90ºF 110ºF 90ºF

Table 10: Water - °C (SI units) Standard Range Geothermal Range Units Units Cooling Heating Cooling Heating Min. Entering Water 1,2 13ºC 13ºC -1ºC -6ºC Normal Entering Water 29ºC 21ºC 25ºC 4ºC Max Entering Water 43ºC 32ºC 43ºC 32ºC

Notes: 1. At AHRI flow rate 2. Maximum and minimum values may not be

combined. If one value is at maximum, the other two conditions may not exceed the normal condition for standard units. Extended range units may combine any two maximum conditions, but not more than two, with all other conditions being normal conditions.

EnvironmentThisequipmentisdesignedforindoorinstallationonly.Shelteredlocationssuchasattics,garages,etc.,generallywillnotprovidesufficientprotectionagainstextremesintemperatureand/orhumidity,andequipmentperformance,reliability,andservicelifemaybeadverselyaffected.

Power supplyAvoltagevariationof+/-10%ofnameplatevoltageisac-ceptable.Three-phasesystemimbalanceshallnotexceed2%.

Additional information for initial start-up onlyStandard range units:Unitsaredesignedtostartinanambientof50ºF(10ºC),withenteringairat50ºF(10ºC),withenteringwaterat70ºF(21ºC),withbothairandwaterattheflowratesusedintheISO13256-1ratingtest,forinitialstart-upinwinter.Note: This is not a normal or continuous operating

condition. It is assumed that such a start-up is for the purpose of bringing the building space up to occupancy temperature.

Geothermal range units:Geothermalrangeheatpumpconditionersaredesignedtostartinanambientof40ºF(5ºC),withenteringairat40ºF(5ºC),withenteringwaterat40ºF(5ºC),withbothairandwaterattheflowratesusedintheISO13256-1ratingtest,forinitialstart-upinwinter.Note: This is not a normal or continuous operating

condition. It is assumed that such a start-up is for the purpose of bringing the building space up to occupancy temperature.


Correction Factors

Airflow Correction FactorsTable 11: Airflow Correction Factors

Percent of Nominal Airflow 55 60 65 70 75 80 85 90 95 100 Total Cooling Capacity Sensible Cooling Capacity kW - Cooling Total Heat of Rejection Total Heating Capacity kW - Heating Total Heat of Absorption

0.9350.7790.9250.9310.9121.0250.908

0.9420.8030.9330.9390.9211.0220.918

0.9480.8280.9420.9460.9311.0190.928

0.9550.8520.9500.9540.9401.0170.938

0.9620.8770.9590.9610.9501.0140.948

0.9690.9010.9670.9690.9601.0110.958

0.9760.9260.9760.9760.9691.0090.968

0.9830.9500.9840.9840.9791.0060.978

0.9900.9750.9930.9910.9881.0030.988

1.0001.0001.0001.0001.0001.0001.000

Percent of Nominal Airflow 105 110 115 120 125 130 135 140 145 150 Total Cooling Capacity Sensible Cooling Capacity kW - Cooling Total Heat of Rejection Total Heating Capacity kW - Heating Total Heat of Absorption

1.0041.0241.0101.0061.0070.9981.008

1.0111.0481.0191.0141.0170.9951.018

1.0171.0731.0271.0211.0270.9921.028

1.0241.0981.0361.0291.0360.9901.038

1.0311.1221.0441.0361.0460.9871.048

1.0381.1471.0531.0441.0550.9841.058

1.0451.1711.0611.0511.0650.9811.068

1.0521.1961.0701.0591.0740.9791.078

1.0591.2201.0781.0661.0840.9761.088

1.0661.2451.0871.0741.0940.9731.098

Percent of Nominal Airflow 155 160 165 170 175 180 185 190 195 Total Cooling Capacity Sensible Cooling Capacity kW - Cooling Total Heat of Rejection Total Heating Capacity kW - Heating Total Heat of Absorption

1.0731.2691.0951.0811.1030.9711.108

1.0791.2941.1041.0891.1130.9681.118

1.0861.3181.1131.0961.1220.9651.128

1.0931.3431.1211.1041.1320.9621.138

1.1001.3671.1301.1111.1410.9601.149

1.1071.3921.1381.1191.1510.9571.159

1.1141.4171.1471.1261.1610.9541.169

1.1211.4411.1551.1341.1700.9521.179

1.1281.4661.1641.1411.1800.9491.189

Antifreeze Correction FactorsTable 12: Ethylene Glycol 10% 20% 30% 40% 50% Cooling Capacity 0.9950 0.9920 0.9870 0.9830 0.9790 Heating Capacity 0.9910 0.9820 0.9770 0.9690 0.9610 Pressure Drop 1.0700 1.1300 1.1800 1.2600 1.2800

Table 13: Propylene Glycol 10% 20% 30% 40% 50% Cooling Capacity 0.9900 0.9800 0.9700 0.9600 0.9500 Heating Capacity 0.9870 0.9750 0.9620 0.9420 0.9300 Pressure Drop 1.0700 1.1500 1.2500 1.3700 1.4200

Table 14: Methanol

10% 20% 30% 40% 50% Cooling Capacity 0.9980 0.9720 – – – Heating Capacity 0.9950 0.9700 – – – Pressure Drop 1.0230 1.0570 – – –

Table 15: Ethanol 10% 20% 30% 40% 50% Cooling Capacity 0.9910 0.9510 – – – Heating Capacity 0.9950 0.9600 – – – Pressure Drop 1.0350 0.9600 – – –


Physical Data

Table 16: Large Vertical Size 072 - 290 Unit Size 072 096 120 180 215 290 Fan Wheel - D x W (In.) (2) 133/16" × 125/8" (2) 133/16" × 125/8" (2) 133/16" × 125/8" (3) 133/16" × 125/8" (3) 133/16" × 125/8" (3) 133/16" × 125/8"

Fan Motor Horsepower Standard Static 1.5 1.5 2.0 3.0 3.0 7.5

High Static 2.0 2.0 3.0 5.0 5.0 10.0

Coil Face Area (Sq. Ft.) 10.0 10.0 10.0 20.0 20.0 20.0 Coil Rows 3 3 4 3 3 4

Refrigerant Charge (Oz.) Compressor 1 60 60 80 113 118 220

Compressor 2 55 56 86 113 118 220 Filter, (Qty.) Size (In.) (4) 16" × 25 × 1" (4) 16" × 25 × 1" (4) 16" × 25 × 1" (6) 20" × 25 × 1" (6) 20" × 25 × 1" (6) 20" × 25 × 1" Water Connections, Female NPT 11/4" FPT 11/4" FPT 11/4" FPT 11/2" FPT 11/2" FPT 11/2" FPT Condensate Connections, Female NPT 1" 1" 1" 11/4" 11/4" 11/4"

Weight, Operating (Lbs.) 588 588 681 1029 1029 1074

Weight, Shipping (Lbs.) 620 620 710 1074 1074 1297


Performance Curves

Figure 17: Large Vertical Size 072, 096 (Includes allowance for dry coil and filter)2.5

0

.5

1.0

1.5

2.0

6,0005,0004,0003,0002,0001,000

600 RPM

800 RPM

1000 RPM

1200 RPM

1400 RPM

11⁄2 HP

2 HP

EX

TER

NA

L S

TATI

C P

RE

SS

UR

E (I

NC

HE

S O

F W

ATE

R)

CFM

0

Note: For wet coil face velocity (cfm ÷ coil face area, sq. ft.). Add the following static to the external static pressure for the corresponding face velocity: 300 fpm = .20"; 400 fpm = .31"; 500 fpm = .44". Re-enter table at the increased external static pressure to determine final cfm.

Motor and Drive Selections: Unit Size 072 Unit Size 096 1.5 hp: 790-1073 RPM 1.5 hp: 677-960 RPM Do Not Select 2 hp: 1006-1330 RPM 2 hp: 1006-1330 RPM

Figure 18: Large Vertical Size 120 (Includes allowance for dry coil and filter)2.5

0

.5

1.0

1.5

2.0

6,0005,0004,0003,0002,0001,000

800 RPM

1000 RPM

1200 RPM

1400 RPM

2 HP

3 HP

EX

TER

NA

L S

TATI

C P

RE

SS

UR

E (I

NC

HE

S O

F W

ATE

R)

CFM

0


Motor and Drive Selections: Unit Size 120 2 hp: 790-1073 RPM Do Not Select 3 hp: 1006-1330 RPM


Performance Curves

Figure 19: Large Vertical Size 180, 2152.5

0

.5

1.0

1.5

2.0

12,00010,0008,0006,0004,0002,000

600 RPM

800 RPM

1000 RPM

1200 RPM

1400 RPM

5 HP

EX

TER

NA

L S

TATI

C P

RE

SS

UR

E (I

NC

HE

S O

F W

ATE

R)

CFM

0

3 HP


Motor and Drive Selections: Unit Size 180 Unit Size 215 3 hp: 912-1098 RPM 3 hp: 825-993 RPM Do Not Select 5 hp: 1085-1307 RPM 5 hp: 963-1160 RPM Table 17: Large Vertical Size 290

2.5

0

.5

1.0

1.5

2.0

12,00010,0008,0006,0004,0002,000

800 RPM

1000 RPM

1200 RPM

1400 RPM

7 1⁄2 HP

10 HP

EX

TER

NA

L S

TATI

C P

RE

SS

UR

E (I

NC

HE

S O

F W

ATE

R)

CFM

0


Motor and Drive Selections: Unit Size 290 7.5 hp: 1005-1299 RPM Do Not Select 10 hp: 1195-1395 RPM


Dimensional DataLVC/LVW Top Discharge – 072Figure 20: Large Vertical – Size 072

Left Hand Piping Right Hand Piping

Front View

Overall Unit Dimensions: 54⅝" W × 55¾" H × 28" D Electrical Knockouts

LVC/LVW Top Discharge – 096Figure 21: Large Vertical – Size 096


Front View

Overall Unit Dimensions: 54⅝" W × 55¾" H × 28" D Electrical Knockouts




Front View

Overall Unit Dimensions: 54⅝" W × 55¾" H × 28" DElectrical Knockouts


Overall Unit Dimensions: 80-3/8" W × 67" H × 30" D

Right Hand Piping

Front ViewLeft Hand Piping

Overall Filter Rack Dimensions: 74-1/4" W × 40-1/16"H

Dimensional Data


LVC/LVW Top Discharge – 215 Figure 24: Large Vertical – Size 215


Right Hand Piping





Right Hand Piping



Dimensional Data


Dimensional Data

LVC/LVW Top Horizontal Discharge – 072, 096, 120Figure 26: LVC/LVW Top Horizontal Discharge Opening – Sizes 072, 096, 120

LVC/LVW Top Horizontal Discharge – 180, 215, 290Figure 27: LVC/LVW Top Horizontal Discharge Opening – Sizes 180, 215, 290


Figure 30: 2" Return Air Duct Collar and Filter Rack Dimensions Unit Sizes 180-290

6"

741/16"

383/16"

Accessories

Optional 2" Filter Rack & Return Air Duct Collar Theoptional2"filterrackandductcollaraccepts2"(51mm)thickfiltersforsideremoval.Itreplacestheexisting1"(25mm)filterrackandductcollar.Theoptional2"returnairductcollarkitisusedtofacilitateconnectionofreturnairducttotheunit.Aductcollarkitcanbeusedinconjunctionwiththestandard1"thickfilterrackortheoptional2"filterrack.Figure 28: 2" Return Air Filter Rack

*2⅛"

Figure 29: 2" Return Air Duct Collar and Filter Rack Dimensions Unit Sizes 072-120

6"

501/16"

30⅞"


Figure 31: Optional Return Air Duct Collar & 2" Filter Rack Components – Sizes 072-120

Chassis

Center Support

Side Flanges

Top Duct Collar

Top Filter Rack

Center Filter Racks

Duct Collar SideDoor End

Filters

Figure 32: Optional Return Air Duct Collar & 2" Filter Rack Components – Sizes 180-290

Chassis

Center SupportsTop Duct Collar

Top Filter Rack

Center Filter Racks

Duct Collar Side

Door End

Duct Collar Center Support

Accessories


Accessories

Combination Balancing and Shutoff (Ball) ValvesConstructedofbrassandratedat400psig(2758kPa)maximumworkingpressure.Valveshaveabuilt-inadjust-ablememorystoptoeliminaterebalancing.ValveshaveFPTconnectionsonbothendsforconnectiontothewaterhoseandtothefieldpiping.

Figure 35: Shut off Ball Valve

Supply and Return Water Hoses Availableasfireratedconstructionin2or3foot(610mmor914mm)lengths.Fireratedhoseshaveasyntheticpolymercorewithanouterratedcoveringofstainlesssteel.Fittingsaresteel.Assemblyis“firerated”andtestedaccordingtoUL94withaVOratingandASTM84.EachhosehasMPTconnections.Hoseshaveaswivelconnectionatoneendandareavailablein1¼"(32mm)tomatchtheFPTfittingsonunitsizes072through120.Unitsizes180through290have1½"(38mm)FPTfittings.Figure 33: Supply and Return Water Hoses

Hose Specifications

Inner Tube: FireretardantTRP(ThermosplasticRubber)testedtoUL-94withV-Orating.

Outer Braid: Stainlesssteelwire(ANSI302/304)

Temperature range: 40°Fto200°F

Condensate Hose KitAvailableasalongclearplastichosewiththenecessaryclampsandaMPThosefittingforconnectiontotheFPTfieldpiping.Figure 34: Condensate Hose Kit


Motorized ValveUsedinvariablepumpingtypeapplications,thevalveac-tuatoriswiredandtypicallypipedinthereturnwaterline.The2-waymotorizedwatervalvekitincludesthevalvebody,actuatorandwireharness.The24VACvalveactuatormustbewireddirectlytoterminalblockH8ontheMicro-TechIIIcontroller.Thevalvewillonlyenergizeonacallforheatingorcooling.The1-1/4"valveisratedfor300psig(2068kPaandthe1-1/2"valveisratedfor150psig(1034kPa).

Figure 36: 2-Way Motorized Valve

Field Installed Controls■ Amultipleunitcontrolpanelallowsasinglethermostat

tocontroluptothreeunitsinparallel.

Multiple Unit Control Panel (MUCP)Figure 37: Multiple Unit Control Panel and Board

TheMultipleUnitControlPanel(MUCP)isanacces-soryusedwhenupto3-unitsarecontrolledfromasinglethermostat.TheMUCPmustbefield-installedinaremotelocation,typicallyclosetotheunitsandconvenientforserviceaccess.Amaximumof2boardsmaybeusedtogetherifupto6-unitsmustbeconnectedandcontrolledfromasinglethermostat.Figure 38: Multiple Unit Control Panel Ciruit Board

ThemultipleunitcontrolboardprovidesthecomponentsnecessarytoprotecttheMicroTechIIIunitcontrollerfromelectricaldamagethatmayoccurwhenusingstandardoff-the-shelfrelays.ThisversionoftheboardusesVACrelaysandshouldnotbeusedincombinationwithanyotheraccessoriesorequip-mentthatrequireVDCconnectionstothe“G”,“W1”,or“Y1”terminals.Theseeasy-to-operatecomfortcommandcentersbringyouacompleterangeofdeluxefeatures.Featuresthatenableyoutomatchtemperatureprogrammingtoyourapplica-tion,provideaddedconvenience,andhelpsaveenergyandmoney.Allpackedintoanextrarugged,highlyreliablede-signthatwilllookandperformlikenewforyearstocome.

Accessories


Non-Programmable, Auto or Manual Changeover ThermostatTwo Stage Heat/Two Stage Cool, Night Setback OverrideFigure 40: McQuay Part No. 668375401 (1-Pk, White with Wall Plate)

Features • Hardwired• Two-stageheat/two-stagecoolsystems• Backlitdisplay• Fieldtemperaturecalibration• Statusindicatorlight• Relayoutputs(minimumvoltagedropinthermostat)• Nightset-backoverride(usedwhenunitiswired

throughatimeclockontheU-terminal)• Optionalremotetemperaturesensoravailable (see"OptionalRemoteSensor"onpage46)

668375401 – Specifications

Electrical Rating: • 24VAC(18to30VAC/VDC)• 1ampmaximumperterminal• 4ampmaximumtotalload• Easyaccessterminalblock

Temperature Control Ranges: • 45ºFto90ºF(7ºCto32ºC),Accuracy:±1ºF(±0.5ºC)

System Configurations: • Two-stageheat/two-stagecool

Timing:• BacklightOperation:13secondsaftermodechangeor

buttonpress

Terminations: • +R,-C,W1,Y1,W2,Y2,G,O,S1,S2

Accessories

Programmable Electronic Thermostat Two-Stage Heat/Two-Stage Cool, 7-Day ProgrammableFigure 39: McQuay Part No. 668375301 (1-Pk, White with Wall Plate)

Features• Hardwired• Programmableandconfigurable• SimplesetTMfeatureenableseasycopyingofoneday's

programmingfortheentireweek• Title24compliant/Nobatteriesrequired• RelayOuputs(minimumvoltagedropinthermostat)• Clear,backlitdisplaymakesiteasytoseetime,

temperature,andsetpoint—eveninthedark• Ideallysuitedfor:Lightcommercial/residential

(newconstruction/replacement)• Lockoutfeaturepreventsunwantedtampering• Optionalremotetemperaturesensoravailable (seepage59)

668375301 – Specifications

Electrical Rating: • 24VAC(18to30VAC/VDC)• 1ampmaximumperterminal• 4ampmaximumtotalload• Easyaccessterminalblock

Temperature Control Ranges: • 45ºFto90ºF(7ºCto32ºC),Accuracy:±1ºF(±0.5ºC)

System Configurations: • Two-stageheat/Two-stagecool

Terminations: • R,C,W1,Y1,W2,Y2,G,S1,S2


AccessoriesRoomtemperaturesensorsprovideelectronicsensingofroomtemperaturesatwalllocations.Allsensormodelsfeatureathermistor(10kΩ),agreenLEDforunitstatusandtenantoverridebutton.Setpointadjustmentpotentiom-eter,heatandfanmodeswitchesareoptionalfeatures.

Feature

Sensor Kit Part Numbers 669529001 669529101 669529201 Tenant Override Yes Yes Yes Button SPT Adj. Pot No Yes Yes Status LED Yes Yes Yes Fan and

No 1Yes

2Yes Mode Switches

Notes: 1 55º to 95°F (13º to 35ºC)

2 -3º to +3ºF (-1.5º to +1.5ºC)

Figure 43: MicroTech III Wall Sensor Details

Fan ControlSlide Switch

Mode ControlSlide Switch

Status LED(Green)

0 to 10 K ohmPotentiometer

Tenant OverrideMomentary Push Button Switch

4.59"

3.75"

Optional Remote SensorFigure 41: Part No. 667720401 – Used with Thermostat(s) 668375301 & 668375401

The fast, easy solution for temperature sensing problems.■ Fortamperproneareas■ Poorairflowareas■ Troubledapplications■ Foamgasketpreventsdraftsthroughwallopening■ Mountstostandard2"x4"outletbox■ 2¾"Wx4½"H

MicroTech III Water Source Heat Pump Wall Sensors(Kit P/N 669529101, 669529201, 669529001)

Figure 42: Room Temperature Sensors

Sensor 669529101Sensor 669529201 Not Shown

Sensor 669529001


Optional Water Source Heat Pump Room Wall Sensors WiringFigure 44: Temperature Sensor Wiring to MicroTech III Unit Controller (Kit Part No.s 669529101, 669529201)

Temperature Sensor Terminals

MicroTech III Unit Con-troller TB1 Terminals

Figure 45: Temperature Sensor Wiring to MicroTech III Unit Controller (669529001)

MicroTech III Unit Con-troller TB1 Terminals

Temperature Sensor Terminals

Accessories

Programmable Electronic Thermostat WiringTwo-Stage Heat/Two-Stage Cool, 7-Day ProgrammableFigure 46: (Part No. 668375301)

MicroTech III Unit Control Board Low Voltage Terminal Strip (Circuit 1)

W1

Y1

W2

Y2

G

Thermostat Terminals

-C

TB2

24VAC

Alarm Output

Heat 2

Heat 1

Cool 2

Cool 1

Fan

Tenant Override

24VAC Common C

O

G

Y1

Y2

W1

W2

A

R

+R

Notes: Includes Thermostat and Wall Plate.

Non-Programmable, Auto or Manual Changeover WiringTwo Stage Heat/Two Stage Cool, Night Setback and Override FeatureFigure 47: (Part No. 668375401)

MicroTech III Unit Control Board Low Voltage Terminal Strip (Circuit 1)

W1

Y1

W2

Y2

G

Thermostat Terminals

-C

TB2

24VAC

Alarm Output

Heat 2

Heat 1

Cool 2

Cool 1

Fan

Tenant Override

24VAC Common C

O

G

Y1

Y2

W1

W2

A

R

+R

O

Override (Optional)

Note: An additional conductor is required between "O" terminals for the override feature to work.


Accessories

Optional Remote Sensor Wiring Used with Thermostat(s) 668375301 or 668375401Figure 48: Part No. 667720401

Cut R12 from circuit board

Wire 1Wire 2

S1

S1

S2

S2

Remote SensorThermostat


Typical Wiring DiagramsMicroTech™ III Controller with I/O Expansion Module & Communication Module208/230, 460, 575-60-3 (1.5 hp or less)

Drawing No. 910101586

Legend

Item Description CC1 Circuit 1 Compressor Contactor CC2 Circuit 2 Compressor Contactor CM1 Circuit 1 Compressor CM2 Circuit 2 Compressor COS Condensate Overflow Sensor HP Circuit 1 High Pressure Switch HP2 Circuit 2 High Pressure Switch IOEXP I/O Expansion Board / Harness LED1 LED Annunciator / HarnessLED2 LED Annunciator / Harness *RAT Return Air Temp Sensor *LWT Leaving Water Temp Sensor LP Circuit 1 Low Pressure Switch LP2 Circuit 2 Low Pressure Switch SLTS Circuit 1 Suction Line Temp Sensor SLTS2 Circuit 2 Suction Line Temp Sensor R1 Fan Motor Starter RV Circuit 1 Reversing Valve Solenoid RV2 Circuit 2 Reversing Valve Solenoid TB1 Power Terminal Block X1 75 VA Transformer *DAT Discharge Air Temp Sensor *EWT Entering Water Temp Sensor

MicroTech III Control Board JP1 Open (Normal) Shorted (Test Mode) JP2 Shorted

JP3 Open (Std Range)

Shorted (Geothermal Range) JP4 Spare JP5 Open JP6 Open JP7 Spare JP8 Spare I/O Expansion Module JP1 Shorted JP2 Open JP3 Open JP4 Open JP5 Open JP6 Open JP7 Spare JP8 Spare

Notes: 1. “Run/Prg” Jumper to be in “Run” position for normal operation

* Optional with Communication Module


Typical Wiring DiagramsMicroTech™ III Controller with I/O Expansion Module & Communication Module208/230, 460, 575-60-3 (greater than 1.5 hp)





Legend





Typical Wiring DiagramsMicroTech™ III Controller with I/O Expansion Module & Communication Module208/230, 460, 575-60-3 – Unit Size 290





Legend





Engineering Specifications

GeneralContractorshallfurnishandinstallWaterSourceHeatPumpsasindicatedonplans.EachunitshallbeCETLListed.Unitslessthan135,000Btu/hr.totalcoolingcapacityshallbeISOratedperStandard13256-1.Eachunitshallbefullyruntestedatthefactory.Eachunitshallbeshippedonawoodenskidandcoveredwithplastic.

Casing and CabinetThecasingshallbeconstructedofheavy-gaugeG-60galvanizedsteelcornerpostsandsteelpanelconstructionwithheavygaugesteelbasepan.Thebasepanshallhaveholestoacceptfieldinstallationofrubberorspringisolators.Theinteriorshallbelinedwith1/2"thick,1½lb.densityglassfiber.Multiplepanelsonfront,backandsidesshallprovideaccesstocompres-sor,controlbox,fanmotorandfanassembly.Unitshallhaveagalvanizedsteelpainteddrainpanwithadrainconnectionextendingthroughtheunitcasing.Insulateddrainpanshallactasadividerpanelbetweenthecompressorandfansections.Unitsshallhaveasstandardafactoryinstalled1"thickfilterbracketsforsidefilterremoval.Unitshallhavemultiple1"thickthrowawayfilters.Cabinetsshallhaveknockoutsforentranceoflinevoltageandlowvoltagecontrolwiring.SupplyreturnwaterandcondensateconnectionsshallbecopperFPTfittingsandprotrudethroughthecasing.

R-410A Refrigerant CircuitUnitsshallbedualcircuitdesigncontainingscrollcompressors,electronicexpansionvalve,water-to-refrigerantcoaxialheatexchanger,reversingvalve,finnedtubeheatexchanger,andsafetycontrols.Non-ozonedepletingR-410Arefrigerantmustbeused.Compressor(s)shallbescrolltypewiththermaloverloadprotectionandexternalrubbervibrationisolationmounts.Aircoilshallbealuminumfinsbondedtocoppertubes.ThecoaxialheatexchangershallbecopperinnertubeandsteeloutertubewithaU.L.Listinganda400psigwatersideratinganda450psigrefrigerantsiderating.OptionalCupro-nickelCoaxcoilforgeothermalunits.Highandlowsideservicevalvesshallbeprovidedoneachrefrigerantcircuitformeasuringandchargingoftherefrigerantcircuit.Safetycontrolsshallincludealowsuctiontemperature(freezestat),highrefrigerantpressureandlowrefrigerantpressureswitches.Unitsshallbecapableofbeingresetonlybyinterruptingthepowersupplytotheunitandnotfromthewallthermo-stat.Unitshallbecapableofstartinginanambientof40ºFwithenteringwaterat55ºFstandardrange,20ºFextendedrange,withbothairandwaterflowratesattheISOratingconditions.

ElectricalAcontrolenclosureshallbelocatedwithintheunitandshallcontaincontrolsforcompressor(s),reversingvalves(s)andfanmotoroperation.Aterminalblockshallfacilitatemainpowerwiringconnection.A75VAtransformershallsupplythelowvoltagecontrolcircuit.Unitshallbenameplatedtoaccepttimedelayfusesforbranchovercurrentprotectionofthepowerconductors.Unitcontrolsystemshallprovideoneortwostagecoolingandheatingasrequiredbythesetpointsofthewallthermostat.Theunitshallbecapableofprovidinganoutputsignaltoaunit-mountedLEDannunciatortoindicatea“fault”condition.

Thecontrolsystemshallbemicroprocessorbasedandprovidethefollowing:■ Stand-aloneoperation■ LonWorkscommunicationcapabilities(MustbeLonMark3.4certified)■ BACnetcommunicationcapabilities(BACnetMS/TPNetwork)

Fan and Motor AssemblyUnitsshallhaveabeltdrivencentrifugalfan.Thefanhousingshallprotrudethroughthecabinettofacilitatefieldductcon-nection.


Engineering Specifications

Solid-State Control SystemMicroTech III Control System -Unitshallhaveamicroprocessor-basedcontrolsystem.Theunitcontrollogicshallpro-videheatingandcoolingoperationasrequiredbythewallthermostatsetpoint.Thecontrolsystemshallprovidethefollow-ingforstand-aloneoperation:1. Theuseofstandardnon-programmableorprogrammablewallthermostats.2. Fanoperationsimultaneouswiththecompressor(faninterlock)regardlessofthermostatlogic.3. Timedelaycompressoroperation.4. Delayedde-energizingofthereversingvalveforquietreversingvalveoperation.5. Compressorshortcycleprotectionofaminimumofthreeminutesbeforerestartispossible.6. Randomunitstart-upaftercomingoffonunoccupiedmode.7. Singlegroundedwireconnectionforactivationoftheunoccupiedorunitshutdownmodes.8. Nightsetbacktemperaturesetpointinputsignalfromthewallthermostat.9. Overridesignalfromwallthermostattooverrideunoccupiedmodefor2hours.10.Brownoutprotectiontosuspendunitoperationifthesupplyvoltagedropsbelow80%ofnormal.11.Condensateoverflowprotectiontosuspendcoolingoperationinaneventofafulldrainpan.12.Suspendedcompressoroperationuponactivationoftherefrigerantpressureswitch(es).13.Coolingoperationactivatedfor60secondsuponactivationofthelowsuctiontemperaturesensor-

defrostcycle.14.Methodofdefeatingcompressor,reversingvalveandfantimedelaysforfastservicediagnostics.15.Remotereset-Providesmeanstoremotelyresetautomaticlock-outsgeneratedbyhigh/lowpressurefaultsand/orlow

temperaturefaults.16.FaultRetryclearsfaultsthe1sttwotimestheyoccurwithina24-hourperiodandtriggersautomaticlock-outon3rdfault.MicroTech® III Control with I/O Expansion Module –I/OExpansionModuleconnectsdirectlytothemainMicroTechIIIcontrollertoprovidecontrolofthesecondrefrigerationcircuit.MicroTech® III Control with LonWorks® Communication Module –Unitshallhaveamicroprocessor-basedcontrolsystem.TheunitcontrollogicshallcommunicateoveraLonMarkcommunicationsnetwork.Theunitcontrollerisfactoryprogrammed[LonMark®3.4certifiedApplicationCodethecurrentstandardfornewapplications]andtestedwithallthelogicrequiredtomonitorandcontrolheatingandcoolingoperation.Thecontrollersetstheunitmodeofoperation,monitorswaterandairtemperatures,andcancommunicatefaultconditionsviaaLonMarkcommunicationsnetwork.UnitswiththeMicroTechIIIandLonWorkscommunicationmoduleincludereturnair,dischargeairandleavingwatertemperaturesensors.Spacetemperaturesensoroptionsincludeaset-pointadjustment,tenantoverridebutton,andthecapabilityofsubstitutingthereturnairsensorwithawall-mountedroomsensor.Microtech III Control w/ BACnet® Communication Module –Unitshallhaveamicroprocessor-basedcontrolsystem.TheunitcontrollogicshallcommunicateoveraBACnetcommunicationsnetwork.TheBACnetcommunicationmoduleshallincorporateanAtmelARM7ThumbseriesMCUandbecapableofsupportingafullMSTPBACnetimplementation.ThemicroprocessorshallalsosupportSPIcompatiblecommunicationswiththeMCUoftheMicrotechIIIcontroller.ThephysicalinterfacetoaBACnetBASnetworkshallbethroughanindustrystandardRS-485transceivercapableofexistingonanRS-485networkofupto64nodes.Theunitcontrollerisfactoryprogrammedandtestedwithallthelogicrequiredtomonitorandcontrolheatingandcoolingoperation.Thecontrollersetstheunitmodeofoperation,monitorswaterandairtemperatures,andcancommunicatefaultconditionsviaaBACnetcommunicationsnetwork.UnitsoutfittedwithMicrotechIIIandBACnetCommunicationmodulesincludereturnair,dischargeairandleavingwatertemperaturesensors.Spacetem-peraturesensoroptionsincludeaset-pointadjustment,tenantoverridebutton,andthecapabilityofsubstitutingthereturnairsensorwithawall-mountedroomtemperaturesensor.Eachcommunicatingunitcontrollerperformsthefollowingunitoperations:■ Enableheatingandcoolingtomaintainspacetemperaturesetpointattheroomsensor■ Enablefanandcompressoroperation■ Monitorallsafetycontrols■ Monitordischargeandreturnairtemperature■ Monitorleavingwatertemperature■ Relaystatusofallvitalunitfunctions■ Supportoptionalcontroloutputs


Engineering SpecificationsUnitmountedLEDannunciatorsaidindiagnosingunitoperationbyindicatingthewatersourceheatpumpoperatingmodeandalarmconditions.Iftherearenocurrentalarmconditions,agreenLEDontheannunciatorboardwillindicatenormalunitoperatingmode.Ifanalarmconditionexists,theMicrotechIIIcontrollerwillsendthefaultconditiontotheLEDan-nunciator,whichwillassistintroubleshootingtheunit.LEDAnnunciatorshallbevisiblewithoutremovingaccesspanel.HeatpumpswiththeMicroTechIIIControllerwithaLonWorksCommunicationModuleisdesignedtobelinkedwithacentralizedBuildingAutomationSystem(BAS)throughaLonMarkcommunicationsnetworkforcentralizedschedulingandmanagementofmultipleheatpumps.Wall-mountedroomsensorsareavailabletocontroltheheatingandcoolingoperationofeachMicroTechIIIWaterSourceHeatPump.Availableroomsensorsinclude:■ RoomSensorwithtimedoverridebuttonandLED;■ Roomtemperaturesensorwithtimed-overridebuttonandsetpointadjustment(55to95degF);■ Roomsensorwithtimed-overridebuttonandsetpointadjustment(-3to+3degF);■ Roomsensor(nooptions,sensoronly).

WarrantyAnoptional4-yearextendedcompressorwarrantycoversthecompressorfor5yearsfromthedateatwhichtheunitshipsfromthefactory.Anoptional4-yearextendedrefrigerationcircuitwarrantycoverstheentirerefrigerationcircuitandrelatedcomponentsfor5years.

Field Installed Accessories

Wall Thermostat Options■ ProgrammableElectronicThermostatTwo-stageheat/Two-stagecool,7-dayprogrammable.Subbaseshallhavesystem

"Mode/Prog"andfan"Auto/On"switches.ThermostatshallhavetheoptionofanOptionalRemoteSensor.■ Non-programmable,autoormanualchangeoverTwo-stageheat/Two-stagecool,nightsetbackoverride.Subbaseshall

havesystem"Cool/Off/Heat/Auto"andfan"Auto/Onswitches.ThermostatshallhavetheoptionofanOptionalRemoteSensor.

Wall Temperature Sensor Options:■ WallSensorwithtimed-overridebutton.■ WallSensorwithtimed-overridebuttonandsetpointadjustment(55to95degF),fanmodeswitch(auto/on),operational

modebutton(Heat/Cool/Auto)andstatusLEDtodisplayfaultcondition.■ WallSensorwithtimed-overridebuttonandsetpointadjustment(-3to+3degF),fanmodeswitch(auto/on),operational

modebutton(Heat/Cool/Auto)andstatusLEDtodisplayfaultcondition.

Hose Kits:Twofire-ratedflexiblehoseswithASTMratingsofFlameSpread25,FuelContribution25andSmokeDensity50forcon-nectiontounitandfieldpiping.Hoseshallbecoveredwithstainlesssteelbraidingtopreventdamage.

Valve Options:■ Combinationwaterbalancingandshutoffvalvewithadjustablememorystop.■ Optional2-way,NormallyOpen(N.O.)orNormallyClosed(N.C.)motorizedwatervalves.

Warranty

All McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Lim-ited Product Warranty. Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find your local McQuay Representative, go to www.mcquay.com.

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

Products Manufactured in an ISO Certified Facility.

McQuay Water Source Heat PumpsQuality Products, Flexible Configurations

©2011 McQuay International • www.mcquay.com • (800) 432-1342 Catalog 1109-2 (11/11)

Large Vertical Units 6 to 25 Ton

Enfinity Vertical & Horizontal Units 1/2 to 6 Ton

Console Units 3/4 to 11/2 Ton

Rooftop Units 3 to 35 Ton Water to Water Source

Heat Pump Units 3 to 35 Ton

Large Horizontal Units 6 to 10 Ton

Stacking Units 3/4 to 3 Ton

Documents

Catalog 1109-2 Enfinity™ Large Vertical Water …...Product Category W = WSHP Product Identifier LVC = Large Vertical - Standard Range LVW = Large Vertical - Geothermal Design Series