Trane WC-IOM-7 manual Rtrm

Page 27

Installation

Note: Resistance in excess of 2.5 ohms per conductor can cause deviations in the accuracy of the controls.

2.Ensure that the wiring between controls and the unit’s termination point does not exceed two and a half (2.5) ohms/conductor for the length of the run.

3.Do not run the electrical wires transporting DC signals in or around conduit housing high voltage wires.

Table 3. DC Conductors Zone Sensor Module wiring

Distance from Unit to Control Recommended Wire Size

0 - 150 feet		22 gauge

0 - 45.7 m		.33 mm2

151	- 240 feet	20 gauge

46	- 73.1 m	.50 mm2

241 -385 feet		18 gauge

73.5 - 117.3 m		.75 mm2

386	- 610 feet	16 gauge

117.7 - 185.9 m		1.3 mm2

611	- 970 feet	14 gauge

186.2 - 295.7 m		2.0 mm2

Figure 11. Reliatel conventional thermostat field wiring diagram

RTRM

WC-IOM-7 • Packaged Heat Pump

27

Image 27

Contents December Packaged Heat PumpModel Number Description Contains Refrigerant Hazardous Voltage w/CapacitorsEquipment Damage From Ultraviolet UV Lights Contents Contents Model Number Description General Information Rtom ReliaTel Options Module Optional Clogged Filter Switch OptionalGeneral Information Rlci ReliaTel LonTalk Communication Interface OptionalHigh Pressure Control Optional Compressor Disable CPR1/2Power Exhaust Control Optional Low Pressure ControlZone Sensor BAYSENS011B Lead/Lag Control Dual Circuit OnlyZone Sensor Module ZSM BAYSENS007B Zone Sensor Module ZSM BAYSENS009BRemote Zone Sensor BAYSENS016A High Temperature Sensor BAYFRST001ARemote Zone Sensor BAYSENS013C Remote Zone Sensor BAYSENS014CSmoke Detector Sensor Optional Unit InspectionFiberglass Wool First Aid MeasuresStorage Unit Clearances Unit Dimensions Unit Dimensional Data 12 1/2 Ton, 15 Ton Unit DimensionsUnit Dimensional Data 20 Ton Horizontal Duct Dimensional Data 12 1/2 Ton, 15 Ton Improper Unit Lift Heavy ObjectsRigging Ductwork InstallationIf a Curb Accessory Kit is not used Horizontal UnitsLow Voltage Wiring AC & DC Requirements InstallationFactory Installed Economizer Main Electrical Power RequirementsCondensate Drain Configuration Filter InstallationField Installed Power Wiring Use Copper Conductors Only Main Unit PowerStandard Wiring Optional Tbue Wiring Through the Base Electrical OptionField Installed Control Wiring Control Power TransformerHazardous Voltage Controls using 24 VAC Rtrm Smoke detector wiring Smoke Detector Customer Low Voltage WiringInstallation Space Temperature Averaging Temperature vs. Resistance Voltage Imbalance Electrical Phasing Three Phase Motors Live Electrical ComponentsCompressor Crankcase Heaters Optional ReliaTel Controls Test Modes Pre-StartVerifying Proper Air Flow Units with Belt Drive Indoor Fan Pre-StartReturn Air Smoke Detector Compressor Start-Up Start UpEconomizer Start-Up Rotating ComponentsStart Up Heating Start-UpScroll Compressors Final System Setup Fan Belt Adjustment Belt Drive Units MaintenanceMonthly Maintenance Hazardous Voltage MaintenanceReturn Air Smoke Detector Maintenance Cooling SeasonFilters Heating Season Coil CleaningFinal Process Hazardous PressuresSample maintenance log Troubleshooting Hazardous Service ProceduresReliaTel Control System Status Checkout Procedure TroubleshootingMethod System FailureResetting Cooling and Heating Lockouts Heat FailureCool Failure Zone Temperature Sensor ZTS Service Indicator Clogged Filter SwitchFan Failure Switch Ztemp Test Cooling Set Point CSP and Heating Set Point HSPTest System Mode and Fan Selection Testing serial communication voltageProgrammable & Digital Zone Sensor Test Unit Operation without a Zone Sensor ReliaTel Refrigeration Module Rtrm Default ChartUnit Economizer Control ECA Troubleshooting ReliaTel Control Drawing Number Description Wiring DiagramsHeat Pump WarrantyWarranty Page WC-IOM-7