Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 48/50PD05 Catalog No:48-50PD-01T, Printed in U.S.A, Edition Date: 3/09, Replaces: NEW

Models: 48/50PD05

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48/50PD

Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231	Printed in U.S.A.	Edition Date: 3/09	Catalog No:48-50PD-01T

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.			Replaces: NEW

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Carrier 48/50PD05 manual Catalog No:48-50PD-01T, Printed in U.S.A, Edition Date: 3/09, Replaces: NEW

Contents

Troubleshooting Instructions TABLE OF CONTENTSControls, Start-Up,Operation, Service and Single Package Displacement VentilationUNIT DAMAGE HAZARD SAFETY CONSIDERATIONSELECTRICAL SHOCK HAZARD FIRE, EXPLOSION HAZARDBASIC CONTROL USAGE Accessory Navigator DisplayGENERAL ComfortLink ControlSystem Pilott and Touch Pilot Devices CCN Tables and DisplayConventions Used in This Manual Refrigerant Service PortsSTART-UP Unit PreparationEvaporator Fan Power SupplyInternal Wiring Condenser Fans and MotorsCONTROLS QUICK SET-UP Accessory InstallationControl Set Point and Configuration Log Orifice Change 48PD OnlyIAQ Switch AccessoriesPower Exhaust CCN CommunicationFan Status Filter StatusIndependent Outputs SERVICE TESTProgramming Operating Schedules Fan TestTHIRD PARTY CONTROL Alarm OutputDisplay Configuration CONTROLS OPERATIONService Password PSWD Unit ConfigurationPassword Enable PROT Remote HVAC Mode Disabled HV.DNOccupancy Determination Space Humidity Switch RH.SWGeneral Operating Sequence RH Sensor On OAQ Input RH.SIndoor Fan Operation Compressor OperationSetpoints→UHSP Unoccupied Free Cooling Outdoor Fan OperationEconomizer Operation Table 6 — Fan Level Control of Outdoor FanIAQ Analog Input Indoor Air Quality IAQPower Exhaust IA.CF = 0 No IAQCooling Modes Fig. 6 - Cooling Speed Demand Window Cooling Supply Air Set Point ResetFig. 7 - Cool Supply Air Set Point Fig. 8 - Economizer Minimum Position For all units with EconomizersFor units with Enthalpy Control Ventilation ModeHeating Modes Supply-AirTemperature Sensor SAT Gas Heat Start-UpTemp Comp Strt Cool Factr TCS.C Temperature Compensated StartSetting Up the System Temp Comp Strt Heat Factr TCS.HSPT Override Enabled? SCH.O→OV.SP Carrier Comfort Network CCNR ConfigurationTemperature Compensated Start Logic Demand LimitRestart Procedure TROUBLESHOOTINGAlarm Handling CCN Alarm BroadcastDiagnostic Alarm Codes and Possible Causes Alarms and AlertsViewing and Clearing Unit Alarms Communication FailuresAlert Code T076 - Return Air Thermistor Failure Alert Code A157 - A/D Hardware Failure Alert Code T415 - IAQ Input Out of Range Alert Code T416 - OAQ Input Out of RangeTable 8 — ComfortLink Alarm Codes 48/50PDCooling Troubleshooting Table 8 — ComfortLink Alarm Codes contDigital Scroll Controller DSC Troubleshooting Flash Code 4 ⎯ Locked Rotor Table 10 — DSC Red LED Flash CodesEconomizer Troubleshooting Table 11 — Economizer Service AnalysisPhase Loss Protection Heating TroubleshootingVariable Frequency Drive VFD Troubleshooting Phase Reversal ProtectionLEGEND IDM -- Induced-DraftMotor Fig. 9 - IGC Service Analysis Logic48/50PD IGC --Integrated Gas Unit ControllerDESCRIPTION RESET METHOD48/50PD PROBABLE CAUSERefrigerant Temperatures Thermistor TroubleshootingAir Temperatures Thermistor/Temperature Sensor CheckForcing Inputs and Outputs Transducer TroubleshootingSensor Trim TEMP 48/50PD TEMPDegree F 86K at 25_C ResistorsDegree C Degree C48/50PD MAJOR SYSTEM COMPONENTSGeneral sections below48/50PD Fig. 12 - 48PD Control Wiring SchematicC08582 48/50PD Fig. 13 - 50PD Control Wiring SchematicC08583 48/50PD C0858448/50PD Fig. 15 - Typical Unit Component ArrangementC08657 setting Main Base Board MBBCEPL130346-01 Fig. 16 - Main Base Board MBBPOINT DESCRIPTION Table 19 - MBB Connections48/50PD SENSOR LOCATIONEconomizer Control Board ECB Fig. 17 - Economizer Control Board ECBDISPLAY Table 20 — ECB Connections48/50PD POINT DESCRIPTIONFig. 18 - Modulation Board AUX1 Modulation Board AUX1Table 21 — AUX1 Connections Digital Scroll Control Board DSC Variable Frequency Drive VFD Fig. 20 - Variable Frequency Drive VFDIntegrated Gas Control IGC Board Fig. 21 - Integrated Gas Control IGC BoardLow Voltage Terminal Strip Space Temperature Sensor T-55 Accessory Navigatort DisplayField-InstalledAccessories Space Temperature Sensor T-56Space Temperature Sensor Averaging Space Temperature Sensor T-58Fig. 25 - CCN System Architecture Fig. 26 - Space Temperature Sensor Averaging Factory WiringField Wiring LEGENDReturn/Supply Air Temperature Sensor SERVICECarrier Accessory Kits Two-PositionDamperCleaning Coil Maintenance and Cleaning RecommendationOutdoor-AirInlet Screens Condensate Drain PanFilters Main Burner 48PDLubrication Evaporator Fan Service and ReplacementEvaporator Fan Performance Adjustment CompressorsCondenser-FanAdjustment Evaporator Fan Belt Tension AdjustmentVariable Frequency Drive VFD Replacement Fig. 31 - Evaporator-FanAlignment and AdjustmentVerify Sensor Performance Economizer Operation During Power FailureTo Use the Cooling Charging Chart EvacuationGas Valve Adjustment PuronR RefrigerantMain Burners Cleaning and AdjustmentHigh Altitude Filter DrierRelief Devices Replacement PartsDiagnostic LEDs Compressor Sound ShieldTable 27 - MODE - RUN STATUS APPENDIX A - LOCAL DISPLAY AND CCN TABLES48/50PD Table 27 — MODE - RUN STATUS cont APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT48/50PD APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT Table 28 — MODE - SERVICE TESTTable 29 — MODE - TEMPERATURES Table 30 — MODE - PRESSURESTable 32 — MODE - INPUTS APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONTTable 31 — MODE - SET POINTS 48/50PDTable 33 — MODE - OUTPUTS APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT48/50PD APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT Table 34 — MODE - CONFIGURATION48/50PD APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT Table 34 — MODE - CONFIGURATION cont48/50PD 48/50PD APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONTITEM 48/50PD APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONTITEM Table 36 - CCN ONLY TABLES APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONTTable 35 — MODE - TIME CLOCK 48/50PDTable 37 — MODE - OPERATING MODES APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT48/50PD Table 37 — MODE - OPERATING MODES cont APPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT48/50PD Table 37 — MODE - OPERATING MODES cont Table 38 — MODE - ALARMSAPPENDIX A - LOCAL DISPLAY AND CCN TABLES CONT 48/50PDAPPENDIX B - VFD INFORMATION 0-10VdcTable 40 — VFD CONFIGURATIONS APPENDIX B - VFD INFORMATION CONT48/50PD Start Up with Assistant VFD OperationVFD Modes Start Up by Changing Parameters IndividuallyStart-UpAssistant Mode Drive Parameter Backup ModeParameters Mode Changed Parameters ModeFaults Red LED Lit VFD DiagnosticsI/O Settings Mode Alarms Green LED FlashingHistory VFD MaintenanceCorrecting Alarms Heat SinkAPPENDIX B - VFD INFORMATION CONT Table 41 — FAULT CODES48/50PD APPENDIX B - VFD INFORMATION CONT Table 41 — FAULT CODES cont48/50PD APPENDIX B - VFD INFORMATION CONT Table 42 — ALARM CODESTable 43 — MAINTENANCE INTERVALS 48/50PDBattery Replacement Main Fan ReplacementControl Panel Cleaning 3 3 2APPENDIX C - START-UPDATA AIRFLOW AIRFLOW Page LEGEND Bhp -- Brake HorsepowerBhp -- Brake Horsepower 1. Maximum continuous BHP isAIRFLOW AIRFLOWAIRFLOW AIRFLOW48/50PD 48/50PD Bhp -- Brake HorsepowerBhp -- Brake Horsepower LEGENDGENERAL NOTES FOR FAN PERFORMANCE DATA TABLES APPENDIX D - ADDITIONAL START-UPDATA INDICATE UNIT SETTINGS BELOW CONTROL SET POINT AND CONFIGURATION LOGTable 65 — MODE - CONFIGURATION Table 65 — MODE - CONFIGURATION cont 48/50PDTable 65 — MODE - CONFIGURATION cont 48/50PDTable 65 — MODE - CONFIGURATION cont 48/50PDI. PRE-START-UP UNIT START-UPCHECKLISTTEMPERATURES II.START-UPPrinted in U.S.A 48/50PDCatalog No:48-50PD-01T Edition Date: 3/09

Printed in U.S.A.

Edition Date: 3/09

Catalog No:48-50PD-01T

Replaces: NEW