Installation Operation Maintenance

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MaintenanceTroubleshootingThe RTRM has the ability to providethe service personnel with someunit diagnostics and system statusinformation. Before turning themain power disconnect switch "Off",follow the steps below to check theReliaTelRefrigeration Module (RTRM). Alldiagnostics & system statusinformation stored in the RTRM willbe lost when the main power isturned "Off".1. Verify that the Liteport LED onthe RTRM is burningcontinuously. If the LED is lit, goto Step 3.2. If the LED is not lit, verify that24 VAC is present between J1-1and J1-2. If 24 VAC is present,proceed to Step 3. If 24 VAC isnot present, check the unit mainpower supply, check transformer(TNS1). Proceed to Step 3 ifnecessary.3. Utilizing "Method 1" or"Method 2" in the system statusdiagnostic section, check thefollowing: System status,Heating status, Cooling status. Ifa System failure is indicated,proceed to Step 4. If no failuresare indicated, proceed to Step 5.4. If a System failure is indicated,recheck Steps 1 and 2. If the LEDis not lit in Step 1, and 24 VAC ispresent in Step 2, the RTRM hasfailed. Replace the RTRM.5. If no failures are indicated, useone of the TEST modeprocedures described in the unit"Start-Up" section to start theunit. This procedure will allowyou to check all of the RTRMoutputs, and all of the externalcontrols (relays, contactors, etc.)that the RTRM outputs energize,for each respective mode.Proceed to Step 6.6. Step the system through all ofthe available modes, and verifyoperation of all outputs, controls,and modes. If a problem inoperation is noted in any mode,you may leave the system in thatmode for up to one hour whiletroubleshooting. Refer to thesequence of operations for eachmode, to assist in verifyingproper operation. Make thenecessary repairs and proceed toSteps 7 and 8.7. If no abnormal operatingconditions appear in the testmode, exit the test mode byturning the power "Off" at themain power disconnect switch.8. Refer to the individualcomponent test procedures ifother microelectroniccomponents are suspect.System Status Checkout Procedure"System Status" is checked by usingone of the following two methods:Method 1If the Zone Sensor Module (ZSM) isequipped with a remote panel withLED status indication, you can checkthe unit within the space. If the ZSMdoes not have LED's, use Method 2.THS/P03 have the remote panelindication feature. The LEDdescriptions are listed below:LED 1 (System) "On" during normaloperation. "Off" if a system failureoccurs or the LED fails. "Flashing"indicates test mode.LED 2 (Heat) "On" when the heatcycle is operating. "Off" when theheat cycle terminates or the LEDfails. "Flashing" indicates a heatingfailure.LED 3 (Cool) "On" when the coolingcycle is operating. "Off" when thecooling cycle terminates or the LEDfails. "Flashing" indicates a coolingfailure.LED 4 (Service) "On" indicates aclogged filter. "Off" during normaloperation. "Flashing" indicates ansupply fan failure.62RT-SVX20B-E4
MaintenanceBelow is the complete listing offailure indication causes:System failureCheck the voltage betweenterminals 6 and 9 on J6, it shouldread approximately 32 VDC. If novoltage is present, a system failurehas occurred. Refer to Step 4 in theprevious section for therecommended troubleshootingprocedure.Heating FailureVerify Heat Failure by IgnitionModule (IGN) LED indicator:OFF: No Power or FailureON: NormalSlow Flash: Normal, Heat CallFast Flash: Error Code:1 Flash: Communication Failure2 Flashes: System Lockout3 Flashes: Pressure Switch Fail4 Flashes TC01 or TC02 Open5 Flashes: Flame w/o Gas Valve6 Flashes: Flame Rollout OpenCooling Failure1. Cooling and heating set point(slide pot) on the zone sensorhas failed. Refer to the "ZoneSensor Test Procedure" section.2. Zone temperature thermistorZTEMP on ZTS failed. Refer tothe "Zone Sensor Test Procedure"section.3. CC1 or CC2 24 VAC control circuithas opened, check CC1 & CC2coils, and any of the controlsbelow that apply to the unit(HPC1, HPC2).4. LPC1 has opened during the3 minute minimum "on time"during 4 consecutive compressorstarts, check LPC1 or LPC2 bytesting voltage between the J1-8& J3-2 terminals on the RTRMand ground. If 24 VAC is present,the LPC's has not tripped. If novoltage is present, LPC's hastripped.Service Failure1. If the supply fan proving switchhas closed, the unit will notoperate (when connected toRTOM), check the fan motor,belts, and proving switch.2. Clogged filter switch has closed,check the filters.Simultaneous Heat and Cool Failure1. Emergency Stop is activatedMethod 2The second method for determiningsystem status is done by checkingvoltage readings at the RTRM (J6).The system indication descriptionsand the approximate voltages arelisted below.System FailureMeasure the voltage betweenterminals J6-9 & J6-6.Normal Operation = approximately32 VDCSystem Failure = less than 1 VDC,approximately 0.75 VDCTest Mode = voltage alternatesbetween 32 VDC & 0.75 VDCHeat FailureMeasure the voltage betweenterminals J6-7 & J6-6.Heat Operating = approximately32 VDCHeat Off = less than 1 VDC,approximately 0.75 VDCHeating Failure = voltage alternatesbetween 32 VDC & 0.75 VDCCool FailureMeasure the voltage betweenterminals J6-8 & J6-6.Cool Operating = approximately32 VDCCool Off = less than 1 VDC,approximately 0.75 VDCCooling Failure = voltage alternatesbetween 32 VDC & 0.75 VDCRT-SVX20B-E463
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InstallationOperationMaintenanceVoy
Page 7 and 8:
InstallationDimensions/Weights/Clea
Page 9 and 10:
InstallationInstalling the unitDisc
Page 11 and 12: InstallationTable 4 - Duct dimensio
Page 13 and 14: InstallationGas pipework installati
Page 15 and 16: InstallationTo increase airflowLoos
Page 17 and 18: InstallationSupply fan performances
Page 19 and 20: InstallationTable 14 - TSD 090 Avai
Page 21: InstallationTable 18 - TSD 120 Avai
Page 24 and 25: InstallationTable 24 - YSD 090 Avai
Page 26 and 27: InstallationTable 28 - YSD 120 Avai
Page 28 and 29: InstallationTable 32 - WSD 072 Avai
Page 30 and 31: InstallationElectrical connectionTh
Page 32 and 33: InstallationTable 37 - Compressor a
Page 34 and 35: ControlsTrane THS01,THS02, THP01 an
Page 36 and 37: ControlsWiring the wall-mounted CO2
Page 38 and 39: ControlsMounting the duct-mounted C
Page 40 and 41: ControlsFire thermostatThere are tw
Page 42 and 43: ControlsThermostats6 thermostats ar
Page 44 and 45: Unit OptionsHot water coilIn order
Page 46 and 47: Unit Options0 - 50% fresh air hoodT
Page 48 and 49: OperationOperation with aconvention
Page 50 and 51: OperationUnoccupied modeIf the ther
Page 52 and 53: OperationTest proceduresOperating c
Page 54 and 55: OperationUnit start-upVerification
Page 56 and 57: OperationReliaTel is a microelectro
Page 58 and 59: OperationEconomizer Set-UpAdjusting
Page 60 and 61: MaintenanceTo keep the unit operati
Page 64 and 65: MaintenanceService FailureMeasure t
Page 66 and 67: MaintenanceTo Test Humidity Sensors
Page 68: www.trane.comFor more information,
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