Trane WC-IOM-7 manual Resetting Cooling and Heating Lockouts, Heat Failure, Cool Failure

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Troubleshooting

Test Mode = voltage alternates between 32 VDC & 0.75 VDC

Heat Failure

Measure the voltage between terminals J6-7 & J6-6.

Heat Operating = approximately 32 VDC

Heat Off = less than 1 VDC, approximately 0.75 VDC

Heating Failure = voltage alternates between 32 VDC & 0.75 VDC

Cool Failure

Measure the voltage between terminals J6-8 & J6-6.

Cool Operating = approximately 32 VDC

Cool Off = less than 1 VDC, approximately 0.75 VDC

Cooling Failure = voltage alternates between 32 VDC & 0.75 VDC

Service Failure

Measure the voltage between terminals J6-10 & J6-6.

Clogged Filter = Approximately 32 VDC.

Normal = Less than 1 VDC, approximately 0.75 VDC

Fan Failure = voltage alternates between 32 VDC & 0.75 VDC.

To use LED’s for quick status information at the unit, purchase a BAYSENS010B ZSM and connect wires with alligator clamps to terminals 6 through 10. Connect each respective terminal wire (6 through 10) from the Zone Sensor to the unit J6 terminals 6 through 10.

Note: If the system is equipped with a programmable zone sensor, (BAYSENS019A, BAYSENS020A or BAYSENS023A), the LED indicators will not function while the BAYSENS010A is connected.

Resetting Cooling and Heating Lockouts

Cooling Failures and Heating Lockouts are reset in an identical manner. Method 1 explains resetting the system from the space; Method 2 explains resetting the system at the unit.

Note: Before resetting Cooling Failures and Heating Lockouts check the Failure Status Diagnostics by the methods previously explained. Diagnostics will be lost when the power to the unit is disconnected.

Method 1

To reset the system from the space, turn the “Mode” selection switch at the zone sensor to the “Off” position. After approximately 30 seconds, turn the “Mode” selection switch to the desired mode, i.e. Heat, Cool or Auto.

50	Packaged Heat Pump • WC-IOM-7

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Contents Packaged Heat Pump DecemberModel Number Description Equipment Damage From Ultraviolet UV Lights Contains RefrigerantHazardous Voltage w/Capacitors Contents Contents Model Number Description General Information Rlci ReliaTel LonTalk Communication Interface Optional Clogged Filter Switch OptionalGeneral Information 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 OptionalStorage Fiberglass WoolFirst Aid Measures Unit Clearances Unit Dimensions Unit Dimensions Unit Dimensional Data 12 1/2 Ton, 15 TonUnit Dimensional Data 20 Ton Horizontal Duct Dimensional Data 12 1/2 Ton, 15 Ton Heavy Objects Improper Unit LiftRigging Horizontal Units InstallationIf a Curb Accessory Kit is not used DuctworkMain Electrical Power Requirements InstallationFactory Installed Economizer Low Voltage Wiring AC & DC RequirementsField Installed Power Wiring Condensate Drain ConfigurationFilter Installation Optional Tbue Wiring Through the Base Electrical Option Main Unit PowerStandard Wiring Use Copper Conductors OnlyHazardous Voltage Field Installed Control WiringControl Power Transformer Controls using 24 VAC Rtrm Smoke Detector Customer Low Voltage Wiring Smoke detector wiringInstallation Space Temperature Averaging Temperature vs. Resistance Voltage Imbalance Compressor Crankcase Heaters Optional Electrical Phasing Three Phase MotorsLive Electrical Components ReliaTel Controls Pre-Start Test ModesPre-Start Verifying Proper Air Flow Units with Belt Drive Indoor FanReturn Air Smoke Detector Rotating Components Start UpEconomizer Start-Up Compressor Start-UpScroll Compressors Start UpHeating Start-Up Final System Setup Maintenance Fan Belt Adjustment Belt Drive UnitsMaintenance Monthly Maintenance Hazardous VoltageFilters Return Air Smoke Detector MaintenanceCooling Season Coil Cleaning Heating SeasonHazardous Pressures Final ProcessSample maintenance log ReliaTel Control TroubleshootingHazardous Service Procedures Troubleshooting System Status Checkout ProcedureSystem Failure MethodCool Failure Resetting Cooling and Heating LockoutsHeat Failure Fan Failure Switch Zone Temperature Sensor ZTS Service IndicatorClogged Filter Switch Test Cooling Set Point CSP and Heating Set Point HSP ZtempProgrammable & Digital Zone Sensor Test Test System Mode and Fan SelectionTesting serial communication voltage ReliaTel Refrigeration Module Rtrm Default Chart Unit Operation without a Zone SensorUnit Economizer Control ECA Troubleshooting ReliaTel Control Wiring Diagrams Drawing Number DescriptionWarranty Heat PumpWarranty Page WC-IOM-7