Carrier CAPRI-280 Wartungshandbuch

ModelCAPRI-280SeptaT-283Bus AirConditioningEquipment

1-4T-2831.2.3 Compressor AssemblyThe compressor assembly includes the refrigerantcompressor, clutch assembly, suction and dischargeservice valves, hig

1-5T-283b. Pressure SwitchesHigh Pressure Switch (HPS)During the A/C mode, HVAC system operation willautomaticallystopiftheHPSswitchcontactsopenduetoa

1-6T-283Figure 1-4. Heater Flow Diagram1.8 HEATER FLOW CYCLEHeating circuit components furnished by CarrierTransicold include heater cores and evapora

1-7T-2831.9 Relay Board -- Electronically Commutated DC Motors with 2-speed Input SignalK1K2K3K412345678910K7K8K6K9K10K14K16K18K19K15K17K20K13131112D5

1-8T-2831.10Logic B o a rdFigure 1-6 Logic BoardJ1 Logic board power in.J2 Display interface.J3 Manual control inputs.J4 Interlock I nputs(WTS, low si

1-9T-2831.11Control Panel (Diagnostic Module)1234567891011Figure 1- 7. Diagnostic Module1. Display2. Down --- decrease selection3. Up --- increase sel

2-1T-283SECTION 2OPERATION2.1 STARTING, STOPPING AND OPERATINGINSTRUCTIONS2.1.1 HVAC Power to ControllerBefore starting the system, electrical power m

2-2T-283CoolHigh SpeedLoadedCoolHigh Speed4 CylindersCoolHigh Speed2 CylindersReheatHigh Speed2 CylindersHeatLow SpeedHeatHigh SpeedFigure 2-1. Auto R

2-3T-2832.3.1.2 Cooling/ReheatCooling and reheat require various combinations ofcompressor unloading. Cooling is accomplished byenergizing the compres

2-4T-283bedisengagedwhenthesystemisoff,wheninheatingor during high and low pressure conditions.The clutch coil is prevented from engagement whenthe am

SERVICE MANUALOPERATION ANDModel CAPRI-280BUSAIR CONDITIONINGUNITSeptaCarrier Transicold Division, Carrier Corporation, P.O. Box 4805, Syracuse, N.Y.

2-5T-2832.4.8 SYSTEM PARAMETERSPressingtheup/downarrowkeyswillallowtheusertoscrollupordownthroughtheparameters.Ifnokeyispressed for30secondsthismodeis

2-6T-283Table 2-2. Parameter Codes --- ContinuedCode Code Name DescriptionP15 Unloader/Heat ValveDelayThis is the minimum time (in seconds) that the u

T-2833-1SECTION 3TROUBLESHOOTINGDO NOT UNDER ANY CIRCUMSTANCESATTEMPT TO SERVICE THE MICROPRO-CESSOR. SHOULD A PROBLEM DEVELOP WITHTHE MICROPROCESSOR,

3-2T-283Table 3-2. Alarm CodesALARMNO.TITLE CAUSE REMEDY CONTROLLERRESPONSE11 Coil Freeze Coil temperature is lessthan 32Fandthecom-pressor is operat

T-2833-3Table 3-2. Alarm Codes (Continued)ALARMNOTITLE CAUSE REMEDY CONTROLLERRESPONSE25 Motor Failure A motor has not reachedfull operating speed ort

3-4T-283Table 3-3. General System Troubleshooting ProceduresINDICATION/TROUBLEPOSSIBLE CAUSESREFERENCESECTIONSYSTEM WILL NOT COOLCompressor will not r

T-2833-5Table 3-3. General System Troubleshooting Procedures - ContinuedINDICATION/TROUBLEPOSSIBLE CAUSESREFERENCESECTIONABNORMAL NOISE OR VIBRATIONS

4-1 T-283SECTION 4SERVICE!!WARNINGBE SURE TO OBSERVE WARNINGS LISTED INTHE SAFETY SUMMARY IN THE FRONT OF THISMANUAL BEFORE PERFORMING MAINTE-NANCE ON

4-2T-2834.3 INSTALLING MANIFOLD GA UGESThemanifoldgaugesetcanbe usedtodeterminesystemoperatingpressures,addcharge,equalizeorevacuatethesystem. (See fi

4-3 T-283NOTEItmustbe emphasizedthat only the correctrefrigerant drum should be connecte d topressurize the system. Any other gas orvapor will contami

iTABLE OF CONTENTSSection PageSAFETY SUMMARY 1...1DESCRIPTION 1-1...

4-4T-283c. Note weight of refrigerant and cylinder.d. Open liquid valve on refrigerant container. Midseatfilter-drier inlet valve and allow refrigeran

4-5 T-2834.10 FILTER-DRIERa. To Check Filter DrierCheck for a restricted or plugged filter-drier by feelingthe liquid line inlet and outlet connection

4-6T-2833. Loosen one TXV bulb clamp and make sure areaunder clamp is clean.4. Place temperature thermocouple in contactwiththesuction tube and parall

4-7 T-2834. Check oil level in service replacementcompressor. (Refer to section 1.3 and 4.12.2.)GASKETBYPASSPISTONPLUGSPRINGFLANGECOVERcapscrews(NOT I

4-8T-2832. When the compressor is in operation, the pumpcheck valve prevents the loss of refrigerant whileallowingservicementodevelopsufficientpressur

4-9 T-283b. Use a di gital volt-ohmmeter measure voltage acrossthetransducerandcomparetovaluesinTable4-2.Areading within two percent of the valuesin t

4-10T-283Table 4 -3. Controller ConfigurationConfiguration Description JumperA. High Reheat --- When this configuration is removed the unit will defau

4-11 T-283Table 4 -4. R-134a Temperature - Pressure ChartBOLD NO. = Inches Mercury Va cuum (cm Hg Vac )Temperat urePressure Temperat ure Pressure_F _C

5-1SECTION 5ELECTRICALFigure 5- 1 INTRODUCTIONThissectionincludeselectricalwiringschematics.The schematicshowninthis section is forR-134a refrigerant

5-2Figure 5-1. Electrical Wiring Schematic DiagramDrawing No. 62-10112-00 Sheet 1 of 3

ii2.4.6 Temperature Key 2-4...2.4.7 Diagnostic Mode 2-4...

5-3Figure 5-1. Electrical Wiring Schematic DiagramDrawing No. 62-10112-00 Sheet 2 of 3

5-4Figure 5-1. Electrical Wiring Schematic DiagramDrawing No. 62-10112-00 Sheet 3 of 3

INDEXIndex-1 T-283AA/D, 3-1Abnormal Noise or Vibrations, 3-5Activation, 3-1Adding Full Charge, 4-3Adding Oil, 4-7Closed system method, 4-8Adding Parti

INDEXIndex-2T-283Eelectric solenoid unloaders, 1-4Electrical, 5-1Electrical Control, 1-1Electrical malfunction, 3-4Electrical Specifications, 1-4Elect

INDEXIndex-3 T-283LogicBoard,1-3,1-8Low discharge pressure, 3-4Low Pressure Shutdown, 3-2low pressure switch, 1-4Low Pressure Switch (LPS), 1-5Low suc

INDEXIndex-4T-283TTemperature --- Pressure Chart, 4-11Temperature Sensor Checkout, 4-8Thermal Circuit Breakers, 1-7thermal expansion valves, TXV, 1-3T

iii5 ELECTRICAL 5-1...5.1 Introduction 5-1...

1SAFETY SUMMARYGENERAL SAFETY NOTICESThefollowinggeneralsafetynoticessupplementthespecificwarningsandcautionsappearingelsewhereinthis manual. They are

1-1T-283SECTION 1DESCRIPTION1.1 INTRODUCTIONThismanualcontainsOperatingand ServiceInstructionsand Electrical Data for the Model Capri 280 AirCondition

1-2T-2831.2 General description1.2.1 Condenser UnitThe condenser unit includes condenser coils, fan andmotor assemblies, filter-drier, receiver, liqui

1-3T-2831.2.2 Evaporator UnitThe evaporator unit includes roadside and curbsideevaporator coils.Each evaporator unit includes six fan and motorassembl