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Trane manual Space Temperature Averaging, Installation, Packaged Heat Pump WC-IOM-7

Models: WC-IOM-7

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Installation

Space Temperature Averaging

Space temperature averaging is accomplished by wiring a number of remote sensors in a series/parallel circuit.

Using the BAYSENS016* or BAYSENS017*, at least four sensors are required to accomplish space temperature averaging. Example #1 illustrates two series circuits with two sensors in each circiut wired in parallel. The square of any number of remote sensors is required. Example #2 illustrates three sensors squared in a series/parallel circuit. Using BAYSENS032*, two sensors are required to accomplish space temperature averaging. Example #3 illustrates the circuit required for this senor. Table 4 lists the temperature versus resistance coefficient for all sensing.

Figure 14.

30	Packaged Heat Pump • WC-IOM-7

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Trane manual Space Temperature Averaging, Installation, Packaged Heat Pump WC-IOM-7

Contents

Installation Operation Maintenance DecemberModel Number Packaged Heat PumpWarnings and Cautions Model Number DescriptionEquipment Damage From Ultraviolet UV Lights Contains RefrigerantHazardous Voltage w/Capacitors WC-IOM-7 Packaged Heat PumpContents ContentsContents Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 WCZ, WCY, WCX, WCC, WCD, WCH, WCM, WCP and WSC Parts Only. . . . 57 Models Less Than 20 Tons for Commercial Use*. . . . . . . . . . . . . . . . . . . . . . 57 Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Standard Equipment Warranty Terms and Conditions. . . . . . . . . . . . . . . . . . 58 Commercial Equipment Warranty and Liability . . . . . . . . . . . . . . . . . . . . . . . 58 Models Larger that 20 Tons for Commercial Use*Digit Service digitModel Number Description Minor design sequenceCompressor Nameplate General InformationUnit Nameplate Unit DescriptionGeneral Information Clogged Filter Switch OptionalSystem Input Devices & Functions RTOM - ReliaTel Options Module OptionalLow Pressure Control Compressor Disable CPR1/2Power Exhaust Control Optional High Pressure Control OptionalZone Sensor Module ZSM BAYSENS009B Lead/Lag Control Dual Circuit OnlyZone Sensor Module ZSM BAYSENS007B Zone Sensor BAYSENS011BRemote Zone Sensor BAYSENS014C High Temperature Sensor BAYFRST001ARemote Zone Sensor BAYSENS013C Remote Zone Sensor BAYSENS016AUnit Inspection Smoke Detector Sensor OptionalGeneral Information First Aid Measures Precautionary MeasuresFiberglass Wool StorageUnit Clearances General InformationUnit Dimensions WC-IOM-7 Packaged Heat PumpUnit Dimensions Packaged Heat Pump WC-IOM-7Unit Dimensions Figure 4. Unit Dimensional Data 20 TonFigure 5. Roofcurb Dimensional Data 20 Ton WC-IOM-7 Packaged Heat PumpFigure 7. Horizontal Duct Dimensional Data 20 Ton Unit DimensionsPackaged Heat Pump WC-IOM-7 Improper Unit Lift Typical weights and point loading dataHeavy Objects Figure 8. Rigging and center of gravity dataRigging Unit DimensionsFoundation InstallationIf a Curb Accessory Kit is not used General Unit RequirementsMain Electrical Power Requirements InstallationFactory Installed Economizer Low Voltage Wiring AC & DC RequirementsField Installed Power Wiring Condensate Drain ConfigurationFilter Installation Figure 9. Condensate Trap InstallationOptional TBUE Wiring Main Unit PowerStandard Wiring NOTICE Use Copper Conductors OnlyHazardous Voltage Field Installed Control WiringControl Power Transformer InstallationControls using 24 VAC InstallationPackaged Heat Pump WC-IOM-7 Table 3. DC Conductors Zone Sensor Module wiring InstallationRTRM Smoke Detector Customer Low Voltage Wiring Figure 12. Smoke detector wiringInstallation Installation WC-IOM-7 Packaged Heat PumpSpace Temperature Averaging InstallationPackaged Heat Pump WC-IOM-7 Temperature Table 4. Temperature vs. ResistanceInstallation Hazardous VoltageVoltage Imbalance InstallationCompressor Crankcase Heaters Optional Electrical Phasing Three Phase MotorsLive Electrical Components InstallationLive Electrical Components ReliaTel ControlsInstallation Packaged Heat Pump WC-IOM-7Service test guide for component operation Pre-StartTest Modes Units with Belt Drive Indoor Fan Pre-StartVerifying Proper Air Flow ReliaTel ControlReturn Air Smoke Detector Pre-StartRotating Components Start UpEconomizer Start-Up Compressor Start-UpStart Up Heating Start-UpScroll Compressors Final System Setup Start UpMaintenance Fan Belt Adjustment - Belt Drive UnitsRotating Components value shown in Table MaintenanceMonthly Maintenance Belt tension measurement and deflection rangesFilters Return Air Smoke Detector MaintenanceCooling Season MaintenanceCoil Cleaning Heating SeasonMaintenance Hazardous Pressures Final ProcessMaintenance Sample maintenance log MaintenanceTroubleshooting Hazardous Service ProceduresReliaTel Control Method TroubleshootingSystem Status Checkout Procedure LED 1 SystemSystem Failure LED 4 ServiceService Failure MethodCool Failure Resetting Cooling and Heating LockoutsHeat Failure TroubleshootingFan Failure Switch Zone Temperature Sensor ZTS Service IndicatorClogged Filter Switch TroubleshootingTest Zone Temperature Sensor ZTS TestTest Zone Temperature Thermistor ZTEMP Cooling Set Point CSP and Heating Set Point HSPProgrammable & Digital Zone Sensor Test LED Indicator Test, SYS ON, HEAT, COOL & SERVICETesting serial communication voltage Test System Mode and Fan SelectionUnit Operation without a Zone Sensor ReliaTel Refrigeration Module RTRM Default ChartSystem mode and fan selection chart TroubleshootingUnit Economizer Control ECA Troubleshooting TroubleshootingReliaTel Control Number Wiring DiagramsDrawing DescriptionWarranty Heat PumpModels Less Than 20 Tons for Commercial Use Commercial Equipment Warranty and Liability WarrantyStandard Equipment Warranty Terms and Conditions Models Larger that 20 Tons for Commercial UsePage Date Literature Order NumberWC-IOM-7 12/04