Carrier 38APS025 Manual

Also see for 38APD115: Installation instructions

Carrier 38APS025 Manual Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53380010-01 Printed in U.S.A. Form 38AP-2T Pg 1 815 1-15 Replaces: 38AP-1TControls, Start-Up, Operation,Service, and TroubleshootingCONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 2,3GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Conventions Used in This Manual . . . . . . . . . . . . . . . . . . .3CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Display Module Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21• SCROLLING MARQUEE DISPLAY• ACCESSORY NAVIGATOR™ DISPLAY MODULEChanging the Display Language. . . . . . . . . . . . . . . . . . . .22Changing the Units of Measure . . . . . . . . . . . . . . . . . . . . .22Configuration and Service Password . . . . . . . . . . . . . . .22Carrier Comfort Network ® (CCN) Interface . . . . . . . . . .22ComfortLink Control Boards. . . . . . . . . . . . . . . . . . . . . . . .23• CONTROL MODULE COMMUNICATION• MAIN BASE BOARD (MBB)• AUX BOARD• COMPRESSOR EXPANSION MODULE (CXB)• ENERGY MANAGEMENT MODULE (EMM)Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26• CURRENT SENSOR BOARD (CSB)• ENABLE/OFF/REMOTE CONTACT SWITCH• EMERGENCY ON/OFF SWITCH• FAN STATUS SWITCH (FS1, FS2)• HIGH PRESSURE SWITCH (HPS)• PRESSURE TRANSDUCERS• THERMISTORS• THERMOSTAT INPUTSensor Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40• ALARM RELAY• LIQUID LINE SOLENOID VALVESPRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40Evacuation and Dehydration. . . . . . . . . . . . . . . . . . . . . . . .40START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-59Preliminary Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41Adjust Refrigerant Charge. . . . . . . . . . . . . . . . . . . . . . . . . .41Check Compressor Oil Level . . . . . . . . . . . . . . . . . . . . . . .57Adjust Oil Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59-136Time, Day, and Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59• TIME/DATE BROADCAST• DAYLIGHT SAVINGS TIMEControl Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60• ENABLE-OFF-REMOTE CONTROL• OCCUPANCY SCHEDULE• CCN CONTROLCapacity Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64• C.TYP = 1 (VAV)• C.TYP = 3 (TSTAT MULTI)• C.TYP = 4 (TSTAT 2STG)• C.TYP = 5 (SPT MULTI)• C.TYP = 7 (PCT CAP)Page• C.TYP = 8 (DUAL TSTAT)• C.TYP = 9 (VAV SETPOINT)• CAPACITY CONTROL ALGORITHMSField Configurable Controls . . . . . . . . . . . . . . . . . . . . . . . 111• ALARM ROUTING• COMPRESSOR STAGING• DEADBAND MULTIPLIER• DEMAND LIMIT• DIGITAL COMPRESSOR• HEAD PRESSURE CONTROL• LOW AMBIENT LOCKOUT• MAINTENANCE REMINDER• MINIMUM LOAD CONTROL• MINUTES OFF TIME• RAMP LOADING• TEMPERATURE RESETOperating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136-160Service Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137• ENABLING AND DISABLING COMPRESSORS• COMPRESSOR MOTOR PROTECTION• MOTOR OVERLOAD PROTECTION• COMPRESSOR FUNCTIONAL CHECK• COMPRESSOR REPLACEMENT• CRANKCASE HEATER MOUNTING• CRANKCASE HEATER WIRING• OIL CHARGE• COMPRESSOR AND OIL EQUALIZER LINE SIGHTGLASSESControl Module Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . 149• LOSS OF COMMUNICATION• CONTROL MODULE REPLACEMENTCondenser Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149• CONDENSER FAN MOTOR PROTECTIONCondenser Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150• METAL (VALUE SOUND) FANS• AEROACOUSTIC™ (LOW SOUND) FANSFilter Drier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152• REPLACING SWITCHMoisture/Liquid Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . 152Motormaster ® V Controls . . . . . . . . . . . . . . . . . . . . . . . . . 152• TROUBLESHOOTINGPressure Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154• TROUBLESHOOTING• REPLACING TRANSDUCERTemperature Relief Devices . . . . . . . . . . . . . . . . . . . . . . . 155Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155• TROUBLESHOOTING• REPLACING THERMISTORSGemini™ Select38APS025-065,38APD025-130Commercial Air-Cooled Condensing Unitswith ComfortLink Version 6.X Controls50/60 Hz