Trane RT-PRC007-EN Manual de usuario

Packaged RooftopAir Conditioners27 ½ to 50 Ton - 60 HzVoyager™ CommercialRT-PRC007-ENOctober 2001

RT-PRC007-EN10ApplicationConsiderationsExhaust Air OptionsWhen is it necessary to provide buildingexhaust?Whenever an outdoor air economizer isused, a

11RT-PRC007-EN4If several units are to be placed on onespan, they should be staggered toreduce deflection over that span.It is impossible to totally q

RT-PRC007-EN12SelectionProcedureA psychrometric chart can be used tomore accurately determine the mixturetemperature to the evaporator coil.Step 4 — D

13RT-PRC007-ENSelectionProcedureThe supply air fan motor selected in theprevious cooling capacity determinationexample was 7.27 bhp with 652 rpm.Thus,

RT-PRC007-EN14ModelNumberDescriptionYCD480 A4 H A1 A4 F D1A 0000000 00 000512 3 456 7 8 9 1011 1213 14 151617 18192021222324 2526 272829KWTons Voltage

15RT-PRC007-ENGeneral Data27 1/2 To n 30 TonCooling Performance1 Nominal Gross Capacity 329,000 363,000Natural Gas Heat2Low High Low High Heating In

RT-PRC007-EN16Table GD-2— General Data — 35-40 Ton35 Ton 40 TonCooling Performance1 Nominal Gross Capacity 417,000 513,000Natural Gas Heat2Low High L

17RT-PRC007-ENGeneral Data50 TonCooling Performance1 Nominal Gross Capacity 616,000Natural Gas Heat2Low High Heating Input (BTUH) 400,000 800,000

RT-PRC007-EN18PerformanceAdjustmentFactorsWet Bulb Temperature Btu Per Lb.40 15.2341 15.7042 16.1743 16.6644 17.1545 17.6546 18.1647 18.6848 19.2149 1

19RT-PRC007-ENPerformanceDataTable PD-4 — 27 1/2 Ton Gross Cooling Capacities (MBh)Table PD-5— 30 Ton Gross Cooling Capacities (Mbh)Ambient Temperatu

©American Standard Inc. 2001RT-PRC007-ENIntroductionPackaged RooftopAir ConditionersThrough the years, Trane has designedand developed the most comple

RT-PRC007-EN20PerformanceDataTable PD-6 — 35 Ton Gross Cooling Capacities (Mbh)Table PD-7 — 40 Ton Gross Cooling Capacities (Mbh)Ambient Temperature —

21RT-PRC007-ENPerformanceDataTable PD-8 — 50 Ton Gross Cooling Capacities (MBh)Ambient Temperature — Deg F85 95 105 115Ent Entering Wet Bulb Temperatu

RT-PRC007-EN22PerformanceDataTable PD-11 — Natural Gas Heating CapacitiesTable PD-9 — Electric Heat Air Temperature RiseKW Total CfmInput MBH 8000 900

23RT-PRC007-ENPerformanceDataTable PD-12 — Supply Fan Performance — 27½ - 35 TonStatic Pressure (in. wg)10.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25S

RT-PRC007-EN24PerformanceDataTable PD-13 — Supply Fan Performance — 40 and 50 TonStatic Pressure (in. wg)10.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25

25RT-PRC007-ENPerformanceDataTable PD-14 — Component Static Pressure Drops (in. W.G.)1Heating System Filters2Nominal CFM Gas Heat Electric Heat3ID Coi

RT-PRC007-EN26PerformanceDataTable PD-15 — Supply Air Fan Drive Selections7.5 HP 10 HP 15 HP 20 HPNominal Drive Drive Drive DriveTons RPM No RPM No RP

27RT-PRC007-ENPerformanceDataExhaust External Static Pressure — Inches of WaterAirflow High Speed Med Speed Low Speed(Cfm) ESP ESP ESP3500 0.900 — —40

RT-PRC007-EN28ControlsVAV Units OnlySequence of Operation1Supply Air Pressure ControlInlet Guide Vane ControlInlet guide vanes are driven by amodulati

29RT-PRC007-ENControlsreset temperature setpoint the amountof reset is equal to the reset amountsetpoint.bReset Based On Zone Or ReturnTemperatureZone

3ContentsRT-PRC007-ENIntroductionFeatures and BenefitsApplication ConsiderationsSelection ProcedureModel Number DescriptionGeneral DataPerformance Dat

RT-PRC007-EN30Controlsthe requirement, the UCP will energizethe second stage electric heatcontactor(s) if the appropriate limits areclosed. The UCP wi

31RT-PRC007-ENControlsCoil Freeze Protection FROSTAT™The FROSTAT system eliminates theneed for hot gas bypass and adds asuction line surface temperatu

RT-PRC007-EN32ElectricalDataElectrical Service SizingTo correctly size electrical servicewiring for your unit, find theappropriate calculations listed

33RT-PRC007-ENElectricalDataTable ED-2 — 27½-50 Ton Electrical Service Sizing Data1Fan MotorsCompressor Supply Condenser ExhaustAllowable Standard/Ele

RT-PRC007-EN34DimensionalDataFigure DD-1 — 27 1/2 - 35 Tons (TC, TE, YC Low Heat)NOTE: The Two Horizontal PowerExhaust Hoods and the threeHorizontal

35RT-PRC007-ENDimensionalDataFigure DD-2 — 27 1/2 - 35 Tons (YC High Heat)NOTES:1. ALL DIMENSIONS INCHES.2. THRU-BASE ELECTRICAL LOCATIONS ARE PRESE

RT-PRC007-EN36DimensionalDataFigure DD-3 — 40-50 Tons (TC, TE, YC Low & High Heat) NOTES:1. ALL DIMENSIONS INCHES.2. THRU-BASE ELECTRICAL LOCATI

37RT-PRC007-ENNote:1. Remote sensors are available for use with all zone sensors to provide remote sensing capabilities.SINGLE SETPOINT SENSOR WITH SY

RT-PRC007-EN38DimensionalData(ConstantVolume CV)Field Installed SensorsDUAL SETPOINT, MANUAL/AUTOMATICCHANGEOVER SENSOR WITH SYSTEMFUNCTION LIGHTS (BA

39RT-PRC007-ENDimensional (CV and VAV)DataNote:1. Remote sensors are available for use with all zone sensors to provide remote sensing capabilities.RE

RT-PRC007-EN4Features andBenefitsStandard Features• Factory installed and commissionedmicroelectronic controls• Trane 3-D™ Scroll Compressors• Dedicat

RT-PRC007-EN40WeightsTable W-1 — Approximate Operating Weights — Lbs.2Notes:1. Basic unit weight includes minimum HP Supply Fan motor.2. Optional high

41RT-PRC007-ENGeneralThe units shall be dedicated downflowor horizontal airflow. The operating rangeshall be between 115 F and 0 F in coolingas standa

RT-PRC007-EN42MechanicalSpecificationsmake all heating, cooling and/orventilating decisions in response toelectronic signals from sensorsmeasuring ind

43RT-PRC007-ENMechanicalSpecificationsAccessoriesRoof CurbThe roof curb shall be designed to matewith the unit and provide support and awater tight in

RT-PRC007-EN44MechanicalSpecificationsLP Conversion KitField installed conversion kit shallprovide orifice(s) for simplifiedconversion to liquefied pr

45RT-PRC007-EN(20-60Ton)

The Trane CompanyAn American Standard Companywww.trane.comFor more information contact yourlocal district office, or e-mail us [email protected]

5RT-PRC007-ENTrane 3-D® Scroll CompressorSimple Design with 70% Fewer PartsFewer parts than an equal capacityreciprocating compressor meanssignificant

RT-PRC007-EN6Features andBenefitsMicro ControlsThe Micro provides unit control forheating, cooling and ventilating utilizinginput from sensors that me

7RT-PRC007-ENFeatures andBenefitsExcellent Part-Load EfficiencyThe Scroll compressor’s unique designallows it to be applied in a passiveparallel manif

RT-PRC007-EN8Features andBenefitsEasy to ServiceBecause today’s owners are very cost-conscious when it comes to service andmaintenance, the Trane Voya

9RT-PRC007-ENFeatures andBenefitsVariTracTrane’s changeover VAV System for lightcommercial applications is alsoavailable. Coupled with VoyagerCommerci