Packaged Rooftop Air Conditioners Foundation™

1 October2021 RRTT--PPRRCC009911CC--EENNP roductCatalogPackagedRooftopAir ConditionersFoundation ,60Hz 2021 TraneRT-PRC091C-ENIntroductionPackagedRo oftopAir ConditionersThroughtheyears, productthatprovidedexceptionalreliabilit y,waseasytoinstall, proudtointroducethenewFoundation ,Tranecontinuestoprovidethehigheststanda rdsinqualityandreliability,comfort,perfo rmance, arethepropertyofTrane, , UpdatedtheFeaturesandBenefitschapter. UpdatedtheApplicationConsiderationchapte r. UpdatedtheModelNumberDescriptionchapter. UpdatedtheGeneralDatachapter.

2 UpdatedthePerformanceDatachapter. UpdatedtheElectricalDatachapter. UpdatedtheDimensionalDatachapter. UpdatedtheWeightschapter.. 4 StandardandOptionalFeatures.. 4 OutstandingStandardFeatures.. 7 ApplicationConsiderations.. 10 BarometricRelief.. 10 ClearanceRequirements.. 10 CondensateTrap.. 10 UnitPitch.. 10 SelectionProcedure.. 11 CoolingCapacity.. 11 HeatingCapacity.. 12 AirDeliverySelection.. 12 ModelNumberDescription.. 13 GeneralData.. 14 PerformanceData.. 17 GrossCoolingCapacities.. 21 Controls.. 40 EconomizerControls.

3 40 Thermostats.. 40 ElectricalData.. 41 JobsiteConnections.. 43 DimensionalData.. 48 MechanicalSpecifications.. 49 General.. 49 StandardFeatures.. 49 FactoryInstalledOptions.. 51 Table of Contents4RT-PRC091C-ENFeaturesand BenefitsFoundation hasfeaturesandbenefitsthatmakeit , OptionalFeaturesMediumFoundationStandard Options(a)FactoryInstalledFieldInstalled 1-yearLimitedParts WarrantyX5-yearLimitedCompressorWarranty X5-yearLimitedHeat ExchangerWarrantyX10-yearLimitedStainles sSteel HeatExchangerWarrantyXBarometricRelief DamperXBelt Drive MotorsXCO2sensor- DemandControlVentilation(DCV)XColoredCon nectorsand WiringXCompressorDischargeTemperature Limit (DTL)

4 XCondensateOverflowSwitchXConvertibleAir flowXEasy AccessLowVoltageConnectionsXEconomizer(D ownflow)XElectricHeatersXFiltersXFixedOr ificeXHail/VandalGuardsXHigh PressureControlXHigh Static Motor Kit(b)XXInsulation-1/2-inch,1-lb DensityXLiquid Line RefrigerantDrierXLow AmbientCoolingXLow Leak EconomizerXLow PressureControlXLow VoltageCircuitProtectionXLP ConversionKitXManualOutsideAir DamperXMotorized2-PositionDamperXPhase Loss/ReversalMonitorXPoweredExhaustXQuic k AccessPanelsXRemotePotentiometerXScroll CompressorsXRT-PRC091C-EN5 MediumFoundationStandardOptions(a)Factor yInstalledFieldInstalledSinglePoint PowerXSingleSide ServiceXThrough-the-baseelectrical& gas connectionprovisionsX(a)

5 Refer to modelnumberdescriptionforoptionavailabil ityorcontactProductSupport.(b)Availableo n constantvolumeunits only. See Accessorieschapterfor more easytoconvertthemtoa ThermostatA bi-metalelementdischargelinethermostatsi nstalledasa , AccessLow VoltageTerminalBoardFoundation LowVoltageTerminalBoardis is , , ExchangerThecabinetfeaturesa tubularheatexchangerinheatcapacities fabricatedusingaluminizedsteelburnersand corrosion-resistant, ,aninduceddraftbloweris usedtopullthegasmixturethroughtheburnerF Feeaattuurreess aanndd ton unit requires a directsparkignitionsystem.

6 Whichdoublesasa safetydevicetoprovetheflame,is Anti-ShortCycle TimerThisdevicemonitorscompressorsafetys witchtripstopreventshortcycling, manualresetis requiredaftera AmbientCoolingAllFoundationunitshavecool ingcapabilitiesdownto40 VoltageConnectionsThewiringofthelowvolta geconnectionstotheunitandthethermostatis assimpleasR-R,G-G,Y-Y, : Lightweight(simplifiescoilhandling) Easytorecycle MonitorFoundationfeaturesa three-phaselinemonitormodulethatprotects againstphaseloss, is hasanoperatinginputvoltagerangeof180 632 Vac, aanndd BBeenneeffiittssRT-PRC091C-EN7 Quick-AdjustFan MotorMountingPlateWiththequick-adjustsli derplate, PowerA ServiceSinglesideserviceis PansEveryFoundation unithasa non-corrosive.

7 SlopeddrainpanmadeofrigidPVC- OptionsFactoryInstalledOptionsOversizedM otorsMulti-speedonly InstalledOptionsBarometricReliefDesigned tobeusedondownflowandhorizontalconfigura tionforbothstandardandlowleakeconomizeru nits,barometricreliefis condensateoverflowswitchis DemandControlVentilation(DCV)Demand-cont rolledventilation(DCV)is a controlstrategythatrespondstotheactualde mand(need) CO2sensormeasurestheconcentration(partsp ermillion,ppm) , a passivesystem;directcontroloftheindoorfa nis availableasa ,reference, , availableasa Static Drive AccessoryAvailableonconstantvolumemodels only, Leak Economizerwith Fault Detectionand ,IECC,andCaliforniaTitle24standards(3cfm /ft^ cfm/ft^2forreturndampers).

8 FFeeaattuurreess aanndd BBeenneeffiittss8RT-PRC091C-ENLP DamperA 0-50percentmanualairdamperis DamperA 0 50percentmotorizedoutsideairdampersis availableondownflowunitsandprovidesexhau stofthereturnair,whenusingadownflowecono mizer, ,thisaccessoryprovidesa ,theintegrityofroofingmaterialsis Piping(Gas Heat Units Only)Thisoptionshallhaveallpipingnecessa ryincluding,blacksteel,manualgasshut-off valve,elbows, GuardsTool-less, BenefitsEasy to Install,Serviceand MaintainBecausetoday sownersareverycost-consciouswhenit comestoserviceandmaintenance, ,multiplecontroloptions, aanndd , leaktestedata minimumof225psigwitha 100%unitruntestbeforeleavingtheproductio nlinetomakesureit SupportGroupthatcanassistyouwith.

9 Product SpecialApplications Application Specifications Service ComputerProgramsandmuchmore TrainingFFeeaattuurreess aanndd ,thepressureintheunitreturnairsectionals oincreases, :: Theeffectivenessof barometricreliefdamperduringeconomizingo perationis systemrelated. Pressuredropof thereturnairsystemshouldbeconsideredto , a : TotalCoolingLoad:120 MBh SensibleCoolingLoad:96 MBh Airflow:4000cfm ElectricalCharacteristics:460/60/3 SummerDesignConditions:EnteringEvaporato rCoil:80 FDB/67 FWB OutdoorAmbient:95 F Rooftop Downflowconfiguration Accessories:RoofCurb, startingpoint,a (12 MBhperton).

10 12 MBh= , GBC120 Ahasa , ccaappaacciittyy aatt iinntteerrmmeeddiiaattee ccoonnddiittiioonnss nnoott iinn tthhee ttaabblleeWhenthedesignconditionsarebetw eentwonumbersthatareinthecapacitytable,i nterpolationis :: Extrapolationoutsideof thetableconditionsis srequirements, dependentontheeffortbythemotor- :ExternalStatic Duct wgStandardFilter 2 in. wgElectricHeaterSize kW wgTotal Static wgNote:Referenceheatingcapacitysectionon this page for determinationof heatersize. No additionalstatic add :: TheEvaporatorFanPerformancehasalreadyacc ountedforthepressuredropforstandardfilte rsandwetcoils(seenotebelowin ).