Goodman ComfortNet ASZC160241AE User Manual

RS6200007r14
December 2017
This manual is to be used by qualified, professionally trained HVAC technicians only. Goodman
does not assume any responsibility for property damage or personal injury due to improper
service procedures or services performed by an unqualified person.
Copyright © 2015-2017 Goodman Manufacturing Company, L.P.
ComfortNet™
ASXC, DSXC, and GSXC Condensing Units,
ASZC, DSZC and GSZC
Split System Heat Pumps
with R-410A Refrigerant
Blowers, Coils, & Accessories
Service Instructions
is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company, L.P., Houston, TX. All rights reserved.

Goodman ComfortNet ASZC160241AE Specifications

General

Brand	Goodman
Model	ComfortNet ASZC160241AE
Category	Heat Pump
Language	English

Summary

Service Instructions

IMPORTANT INFORMATION FOR CONSUMERS AND SERVICERS

SAFE REFRIGERANT HANDLING

REFRIGERANT HANDLING WARNINGS

PRODUCT IDENTIFICATION

MODEL NUMBER DECODING GUIDELINES

Explanation of how to interpret model numbers for various units.

PRODUCT IDENTIFICATION - SPECIFIC MODELS

ACCESSORIES

PRODUCT DESIGN

CONDENSING UNIT DESIGN OVERVIEW

SCROLL COMPRESSOR TECHNOLOGY

Explanation of scroll compressor features and operation.

PRODUCT DESIGN - CONTINUED

CAPACITY CONTROL FEATURES

Explanation of ComfortNet™ models' two-stage capacity control.

AVPTC MULTI-POSITION AIR HANDLER

PRODUCT DESIGN - UC PCB DETAILS

COMMUNICATING UNITARY CONTROL (UC) PCB

Details on the UC PCB, its diagnostics, and communication protocols.

SYSTEM OPERATION

REFRIGERANT CYCLE PRINCIPLES

COOLING CYCLE OPERATION

Step-by-step description of the cooling cycle for ComfortNet systems.

SYSTEM OPERATION - HEATING AND DEFROST

HEATING CYCLE OPERATION

Step-by-step description of the heating cycle for ComfortNet systems.

DEFROST CYCLE OPERATION

Explanation of the defrost cycle control for ComfortNet™ models.

SYSTEM OPERATION - REFRIGERANT FLOW

REFRIGERANT FLOW DIAGRAMS

TROUBLESHOOTING CHART

COOLING AND HEAT PUMP ANALYSIS GUIDE

Chart linking symptoms to causes and remedies for cooling/HP issues.

SERVICING - ELECTRICAL CHECKS

S-1 CHECKING VOLTAGE

S-3E COMFORTNETTM THERMOSTAT SYSTEM

SERVICING - NETWORK AND DIAGNOSTIC CODES

NETWORK TROUBLESHOOTING

7-SEGMENT LED DIAGNOSTIC CODES

SERVICING - AIR HANDLER DIAGNOSTIC CODES

PCBJA101- PCBJA102 AIR HANDLER DIAGNOSTIC CODES

Fault codes and corrective actions for PCBJA101/102 air handler controls.

SERVICING - AIR HANDLER DIAGNOSTIC CODES (CONTINUED)

PCBJA104 AIR HANDLER DIAGNOSTIC CODES

Fault codes and corrective actions for PCBJA104 air handler controls.

SERVICING - COMPONENT TESTS

SERVICING - MOTOR AND CONTROL DIAGNOSTICS

ECM MOTOR CHECKS

S-10A COPELAND COMFORT ALERT™ DIAGNOSTICS

Diagnostics for Copeland Comfort Alert™ integrated into the unitary control.

SERVICING - UNITARY DIAGNOSTIC CODES

UNITARY DIAGNOSTIC CODES - SYSTEM FAULTS

Unitary diagnostic codes for system faults and their resolutions.

SERVICING - UNITARY DIAGNOSTIC CODES (CONTINUED)

UNITARY DIAGNOSTIC CODES - 7-SEGMENT LED INDICATIONS

Unitary diagnostic codes with 7-segment LED display indications.

SERVICING - PRESSURE AND CAPACITOR CHECKS

S-12 CHECKING HIGH PRESSURE CONTROL

S-15 CHECKING CAPACITOR, RUN

SERVICING - MOTOR CHECKS AND ADJUSTMENTS

S-16G CHECKING EMERSON ULTRATECHTM ECM MOTORS

SERVICING - DIAGNOSTIC TOOLS AND HIGH VOLTAGE CHECKS

EMERSON ULTRACHECK-EZTM DIAGNOSTIC TOOL

ELECTRICAL CHECKS - HIGH VOLTAGE POWER CIRCUITS

SERVICING - LOW VOLTAGE AND MOTOR CHECKS

ELECTRICAL CHECKS - LOW VOLTAGE CONTROL CIRCUITS

MOTOR CONTROL/END BELL CHECKS

SERVICING - ECM MOTOR CFM ADJUSTMENTS

S-16H ECM CFM ADJUSTMENTS AVPTC/MBVC

Adjusting ECM motor CFM settings using dipswitches.

SERVICING - COMPRESSOR CHECKS

S-17 CHECKING COMPRESSOR

Safety precautions and procedures for testing compressors.

S-17A RESISTANCE TEST

Procedure for testing compressor winding resistance.

S-17B GROUND TEST

Procedure for testing compressor for ground faults.

SERVICING - COMPRESSOR TESTS

S-17C UNLOADER TEST PROCEDURE

Procedure to test the operation of the unloader solenoid.

SERVICING - OPERATIONAL AND CONTROL TESTS

S-17D OPERATION TEST

Procedure to test compressor operation.

S-21 CHECKING REVERSING VALVE AND SOLENOID

Procedure to check reversing valve and solenoid operation.

S-24 TESTING DEFROST CONTROL

Procedure to test the defrost control sequence.

SERVICING - SENSOR AND CONTROL TESTS

S-26 TESTING TEMPERATURE SENSORS

Procedure to test outdoor air and coil temperature sensors.

S-40A ELECTRONIC BLOWER/HEATER CONTROL

Description and features of the electronic blower/heater control.

SERVICING - WIRING AND COMMUNICATION TROUBLESHOOTING

TROUBLESHOOTING MOTOR CONTROL CIRCUITS

DATA LINE VOLTAGE TROUBLESHOOTING AND BIAS SWITCHES

SERVICING - BIAS VOLTAGE CHECK

CHECKING BIAS VOLTAGE

SYSTEM OPERATION - HEAT PUMP COMMUNICATION

AVPTC/MBVC WITH ASZC/DSZC HEAT PUMP AND COMFORTNET™ THERMOSTAT

Operation sequence for heat pump systems with ComfortNet™ thermostat.

SYSTEM OPERATION - HEATING MODES AND DEFROST

HEATING OPERATION MODES

Details on heating operation above and below balance point temperature.

DEFROST OPERATION

Explanation of the defrost cycle operation in heat pump mode.

SERVICING - HEATER AND CAPACITY CHECKS

S-61A CHECKING HEATER LIMIT CONTROL(S)

SERVICING - REFRIGERANT REPAIR PRACTICES

S-61B CHECKING HEATER FUSE LINK

S-62 CHECKING HEATER ELEMENTS

S-100 REFRIGERATION REPAIR PRACTICE

General practices and safety for refrigeration system repair.

SERVICING - REFRIGERANT TESTING AND HANDLING

S-101 LEAK TESTING

S-102 EVACUATION

S-103 CHARGING

SERVICING - EXPANSION VALVE CHARGING

EXPANSION VALVE SYSTEM CHARGING

UNITS WITH ADJUSTABLE EXPANSION VALVES

SERVICING - COMPRESSOR AND VALVE CHECKS

S-104 CHECKING COMPRESSOR EFFICIENCY

S-106 OVERFEEDING SYMPTOMS

S-107 UNDERFEEDING SYMPTOMS

S-108 SUPERHEAT CHECK

S-109 CHECKING SUBCOOLING

SERVICING - SYSTEM ISSUES

S-112 CHECKING RESTRICTED LIQUID LINE

S-113 OVERCHARGE OF REFRIGERANT

S-114 NON-CONDENSABLES

SERVICING - COMPRESSOR AND PIPING PROCEDURES

CHECKING COMPRESSOR EFFICIENCY

S-115 COMPRESSOR BURNOUT

Procedures for diagnosing and cleaning after a compressor burnout.

S-120 REFRIGERANT PIPING

SERVICING - COIL CLEANING AND STATIC PRESSURE

STATIC PRESSURE MEASUREMENT

ACCESSORIES WIRING DIAGRAMS

ACCESSORIES WIRING DIAGRAMS - A/DSXC16

ACCESSORIES WIRING DIAGRAMS - A/DSXC18

ACCESSORIES WIRING DIAGRAMS - A/DSZC16

ACCESSORIES WIRING DIAGRAMS - A/DSZC18

ACCESSORIES WIRING DIAGRAMS - AVPTC MODELS

ACCESSORIES WIRING DIAGRAMS - AVPTC SMART FRAME

ACCESSORIES WIRING DIAGRAMS - MBVC