Manuals / Carrier / Household Appliance / Heat Pump

Carrier Fans Service Valves, 38AUQ12 Exterior, 38AUQ12 Interior, High Flow Access Ports

Models: 38AUQ

1 36

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Page 27

Fig. 28 — 38AUQ*12 Exterior

Fans

Service

Valves

Fig. 28 — 38AUQ*12 Exterior

Outdoor Coil

Defrost Thermostat (DFT)

LOC

HPS

High Flow

Access Ports

Fig. 29 — 38AUQ*12 Interior

27

Image 27

Carrier appendix Fans Service Valves, 38AUQ*12 Exterior, 38AUQ*12 Interior, Outdoor Coil Defrost Thermostat DFT LOC HPS

Contents

38AUQ CONTENTSSAFETY CONSIDERATIONS Installation, Start-Upand Service InstructionsELECTRICAL SHOCK HAZARD INSTALLATION GUIDELINEReplacement /Retrofit – R22 to Puron UNIT OPERATION AND SAFETY HAZARDFig. 1 — 38AUQ*07-12Unit Dimensions UNIT SIZE 38AUQ UNIT SIZE 38AUQ Fig. 2 — Model Number Nomenclature 3 8 A UQ A 1 2 A 0 C 6 – 0 A 0 AStep 1 — Plan for Unit Location INSTALLATIONStep 2 — Complete Pre-InstallationChecks Jobsite SurveyCHECK VERTICAL SEPARATION — If there is any vertical separation between the indoor and outdoor units, check to ensure that the separation is within allowable limits. Relocate equipment if necessary UNIT DAMAGE HAZARD INSTALL LIQUID LINE SOLENOID VALVE —Field Power Supply — Step 6 — Install AccessoriesStep 7 — Complete Electrical Connections UNIT OPERATION AND SAFETY HAZARDFIRE HAZARD Convenience OutletsUnits Without Factory-InstalledDisconnect — Units with Factory-InstalledDisconnect —Installing Weatherproof Cover Field Control Wiring — All Units —Thermostat — Locked Rotor Amps Table 8 — Electrical Data — 38AUQ*07-1260 Hz Units Full Load AmpsTurn On Crankcase Heater PRE-START-UPSTART-UP System CheckFinal Checks Advanced Scroll Temperature Protection ASTPAdjust Refrigerant Charge Start UnitFig. 16 — 38AUQ*07 Charging Chart Fig. 17 — 38AUQ*08 Charging ChartFig. 18 — 38AUQ*12 Charging Chart Fig. 19 — 38AUQ Wiring Diagram 208/230-3-60shown Base Unit Controls — OPERATING SEQUENCECompressor Oil ROUTINE SYSTEM MAINTENANCESERVICE Refrigeration SystemOutdoor Coil Metering Devices Field Refrigerant Access PortsRefrigerant System Pressure Access Ports Liquid Line Filter DrierCompressor Overtemperature Heat Pump ControlsCrankcase Heater Commercial Defrost ControlDefrost Reversing valve controlCompressor control Indoor Fan Off Delay Defrost ThermostatsDefrost Speedup Functions Outdoor Coil LOC Fans Service ValvesDefrost Thermostat DFT HPS High Flow Access Ports Fig. 24 — 38AUQ*07 ExteriorOutdoor Coil Defrost Thermostat DFT LOC HPS Fans Service ValvesHigh Flow Access Ports Fig. 26 — 38AUQ*08 ExteriorFig. 29 — 38AUQ*12 Interior Fans Service ValvesHigh Flow Access Ports Fig. 28 — 38AUQ*12 ExteriorInput COMFORT ALERT DIAGNOSTIC MODULEStatus LED Description Status LED Troubleshooting InformationTable 14 — LED Status Codes Status LEDRemove Surface Loaded Fibers LubricationPeriodic Clean Water Rinse Routine Cleaning of Indoor Coil SurfacesFASTENER TORQUE VALUES Service PartsTROUBLESHOOTING 38AUQ WIRING DIAGRAM LISTAPPENDIX A APPENDIX BPrinted in U.S.A APPENDIX CMOTORMASTER SENSOR LOCATIONS 6T HEAT PUMP 7.5THEATPUMP 10THEATPUMPIII. START UP I. PRELIMINARY INFORMATIONII. PRE-START-UP START-UPCHECKLISTCHECK INDOOR UNIT FAN SPEED AND RECORD