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General| Product Category | Heat Pump |
|---|---|
| Brand | Goodman |
| Model | GSZC18048 |
| Nominal Capacity (tons) | 4 |
| Cooling Capacity (BTU/h) | 48000 |
| Heating Capacity (BTU/h) | 48000 |
| HSPF Rating | Up to 10 |
| Refrigerant | R-410A |
| Compressor Type | Scroll |
| Stages | 2 |
| Voltage (V) | 208/230 |
| Phase | 1 |
Procedure for measuring voltage at various points in the system.
Guides on troubleshooting the system's communication network.
Lists and describes conditions indicated by the 7-segment LED display.
Provides diagnostic codes and troubleshooting steps for specific air handler control boards.
Continues the list of diagnostic codes for PCBJA101-PCBJA102 control boards.
Provides diagnostic codes and troubleshooting steps for PCBJA104 control boards.
Continues the list of diagnostic codes for PCBJA104 control boards.
Procedure for testing the time delay relay used in electric heaters.
Lists and explains diagnostic codes for specific control board series.
Continues the list of unitary diagnostic codes for specific control boards.
Lists and explains diagnostic codes for PCBHR104/PCBHR105 control boards.
Continues the list of unitary diagnostic codes for PCBHR104 control boards.
Lists and explains diagnostic codes for PCBHR105 control boards.
Continues the list of unitary diagnostic codes for PCBHR105 control boards.
Procedure to check the operation of the high pressure control.
Procedure for testing capacitor capacitance using a digital multi-meter.
Procedures for performing electrical checks on low voltage control circuits.
Procedures for checking compressor integrity and windings.
Steps to verify the operation of the compressor unloader.
Procedure to test compressor operation when other tests fail.
Procedure to test outdoor air and coil temperature sensors.
Guides on troubleshooting issues related to motor control circuits.
Procedure to test the heater fuse link for continuity.
Procedures for leak testing refrigeration systems using nitrogen or detectors.
Guidance on visually inspecting and testing wiring for continuity.
Explains how to access and interpret diagnostic fault history.
Details LED indicators and troubleshooting steps for network communication issues.
Procedure for checking compressor contactor and relay contacts on the UC control.
Details diagnostics for Copeland Comfort Alert™ on UC controls.
Procedure for checking voltage at high and low pressure switches.
Details how to check Emerson Ultratech™ ECM motors.
Procedures for performing electrical checks on high voltage power circuits.
Steps for inspecting and testing motor control/end bell components.
Method for testing compressor winding resistance.
Details the electronic control for AVPTC/MBVC blowers and heaters.
Steps to troubleshoot communication issues related to data line voltage and bias switches.
Describes the system operation sequence for connected AVPTC/MBVC units.
Steps to visually inspect and test heater elements for continuity.
Procedure for checking high and low voltage supply to the ECM motor.
Procedure for testing the run capacitor's function.
Procedure to check for ground faults in the compressor.
Procedure to test the reversing valve and solenoid operation.
General practices and safety precautions for refrigeration system repairs.
Method for checking capacitor resistance using a digital multi-meter.
Steps to test the defrost control's sequencing and operation.
Explains system operation for heat pumps integrated with AVPTC/MBVC units.
Procedure to test the heater limit controls for proper function.
