Goodman ComfortNet ASZC180481CA 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 ASZC180481CA Specifications

General

Brand	Goodman
Model	ComfortNet ASZC180481CA
Category	Heat Pump
Language	English

Summary

IMPORTANT INFORMATION

IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS

Notices for consumers and servicers regarding safety and proper procedures.

RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS

Guidance on understanding safety symbols, words, and labels.

SAFE REFRIGERANT HANDLING

PRODUCT IDENTIFICATION

PRODUCT DESIGN

CONDENSING UNIT

Description of the condensing unit and its operation.

CAPACITY CONTROL - COMFORTNETTM MODELS

Explanation of ComfortNet™ system capacity control.

COILS AND BLOWER COILS

AVPTC Multi-Position Air Handler

Communicating Unitary Control (UC) PCB

Description of the UC PCB and its role in communication.

SYSTEM OPERATION

COOLING

Explanation of the cooling cycle operation.

HEATING

Explanation of the heating cycle operation.

DEFROST CYCLE - COMFORTNETTM MODELS

Control and operation of the defrost cycle.

COOLING CYCLE

Diagram illustrating the cooling cycle.

HEATING CYCLE

Diagram illustrating the heating cycle.

EXPANSION VALVE/CHECK VALVE ASSEMBLY IN COOLING OPERATION

EXPANSION VALVE/CHECK VALVE ASSEMBLY IN HEATING OPERATION

TROUBLESHOOTING CHART

SERVICING

S-1 CHECKING VOLTAGE

Procedure to check voltage at unit terminals.

NETWORK TROUBLESHOOTING

Troubleshooting the ComfortNet™ system network.

PCBJA101- PCBJA102 AIR HANDLER DIAGNOSTIC CODES

Diagnostic codes for specific air handler control boards.

S-12 CHECKING HIGH PRESSURE CONTROL

Procedure to check high pressure control.

S-17 CHECKING COMPRESSOR

Procedure to check the hermetic compressor.

S-103 CHARGING

Procedure for charging the system.

S-108 SUPERHEAT

Procedure to check superheat of suction gas.

S-115 COMPRESSOR BURNOUT

Procedure for diagnosing compressor burnout.