Trane WC-IOM-7 Condensate Drain Configuration, Filter Installation, Field Installed Power Wiring

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Installation

•Connect properly sized control wiring to the proper termination points between the zone thermostat and the unit control panel.

Condensate Drain Configuration

An evaporator condensate drain connection is provided on each unit. Refer to

Unit Dimensions for the appropriate drain location.

A condensate trap must be installed at the unit due to the drain connection being on the “negative pressure” side of the fan. Install the P-Trap using the guidelines in Figure 9.

A condensate drain line must be connected to the P-Trap. Pitch the drain lines at least 1/2 inch for every 10 feet of horizontal run to assure proper condensate flow. Do not allow the horizontal run to sag causing a possible double-trap condition which could result in condensate backup due to “air lock”.

Figure 9. Condensate Trap Installation

Filter Installation

Each unit ships with 2 inch filters installed. The quantity of filters is determined by unit size. Access to the filters is obtained by removing the indoor fan access panel.

Refer to the unit Service Facts (shipped with each unit) for filter requirements.

Note: Do not operate the unit without filters.

Field Installed Power Wiring

An overall dimensional layout for the standard field installed wiring entrance into the unit is illustrated in Unit Dimensions. To insure that the unit’s supply power wiring is properly sized and installed, follow the guidelines outlined below.

WC-IOM-7 • Packaged Heat Pump

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Contents December Packaged Heat PumpModel Number Description Equipment Damage From Ultraviolet UV Lights Contains RefrigerantHazardous Voltage w/Capacitors 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 InspectionStorage Fiberglass WoolFirst Aid Measures 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 RequirementsField Installed Power Wiring Condensate Drain ConfigurationFilter Installation Use Copper Conductors Only Main Unit PowerStandard Wiring Optional Tbue Wiring Through the Base Electrical OptionHazardous Voltage Field Installed Control WiringControl Power Transformer Controls using 24 VAC Rtrm Smoke detector wiring Smoke Detector Customer Low Voltage WiringInstallation Space Temperature Averaging Temperature vs. Resistance Voltage Imbalance Compressor Crankcase Heaters Optional Electrical Phasing Three Phase MotorsLive Electrical Components 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 ComponentsScroll Compressors Start UpHeating Start-Up Final System Setup Fan Belt Adjustment Belt Drive Units MaintenanceMonthly Maintenance Hazardous Voltage MaintenanceFilters Return Air Smoke Detector MaintenanceCooling Season Heating Season Coil CleaningFinal Process Hazardous PressuresSample maintenance log ReliaTel Control TroubleshootingHazardous Service Procedures System Status Checkout Procedure TroubleshootingMethod System FailureCool Failure Resetting Cooling and Heating LockoutsHeat Failure Fan Failure Switch Zone Temperature Sensor ZTS Service IndicatorClogged Filter Switch Ztemp Test Cooling Set Point CSP and Heating Set Point HSPProgrammable & Digital Zone Sensor Test Test System Mode and Fan SelectionTesting serial communication voltage 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