Trane WC-IOM-7 manual Zone Temperature Sensor ZTS Service Indicator, Clogged Filter Switch

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Troubleshooting

Method 2

To reset the system at the unit, cycle the unit power by turning the disconnect switch “Off” and then “On”.

Lockouts can be cleared through the building management system. Refer to the building management system instructions for more information.

Zone Temperature Sensor (ZTS) Service Indicator

The ZSM SERVICE LED is a generic indicator, that will signal the closing of a Normally Open switch at any time, providing the Indoor Motor (IDM) is operating. This indicator is usually used to indicate a clogged filter, or an air side fan failure.

The RTRM will ignore the closing of this Normally Open switch for 2 (±1) minutes. This helps prevent nuisance SERVICE LED indications. The exception is the LED will flash 40 seconds after the fan is turned “On” if the Fan Proving Switch is not made.

Clogged Filter Switch

This LED will remain lit the entire time that the Normally Open switch is closed. The LED will be turned off immediately after resetting the switch (to the Normally Open position), or any time that the IDM is turned “Off”.

If the switch remains closed, and the IDM is turned “On”, the SERVICE LED will be turned “On” again after the 2 (±1) minute ignore delay.

This LED being turned “On”, will have no other affect on unit operation. It is an indicator only.

Fan Failure Switch

When the “Fan Failure” switch is wired to the RTOM, the LED will remain flashing the entire time the fan proving switch is closed, indicating a fan failure, and it will shut the unit operations down.

WC-IOM-7 • Packaged Heat Pump

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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