Goodman ComfortNet DSXC160481BC 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 DSXC160481BC Specifications

General

Brand	Goodman
Model Number	DSXC160481BC
Category	Heat Pump
Cooling Capacity	4 ton
SEER Rating	16
Refrigerant	R-410A
Compressor Type	Scroll
Cooling Capacity (BTU/h)	48000
Heating Capacity (BTU/h)	48000
Voltage	208/230V
Phase	1
Sound Rating (dBA)	72
HSPF Rating	9.5

Summary

Service Instructions ComfortNet™

Important Information and Safety

Important Notices for Consumers and Servicers

Safe Refrigerant Handling

Product Identification

System Operation

Cooling Cycle Operation

Heating Cycle Operation

System Operation (Continued)

Defrost Cycle Operation

Troubleshooting Chart

Cooling/HP Analysis Chart

Provides a chart for diagnosing cooling and heat pump issues.

Servicing

S-1 Checking Voltage

Procedure for checking system voltage.

S-2 Checking Wiring

Servicing (Continued)

Network Troubleshooting

Steps to troubleshoot ComfortNet™ system network issues.

PCBJA101-PCBJA102 Air Handler Diagnostic Codes

Lists diagnostic codes for specific air handler control boards.

ECM Motor Checks

General checks and troubleshooting for ECM motors.

Unitary Diagnostic Codes

Table detailing unitary diagnostic codes and their meanings.

S-12 Checking High Pressure Control

Emerson UltraCheck-EZ™ Diagnostic Tool

Electrical Checks - Low Voltage Control Circuits

Procedures for checking low voltage control circuits.

Motor Checks

S-17 Checking Compressor

Procedures for checking the compressor.

S-17C Unloader Test Procedure

S-17D Operation Test

S-26 Testing Temperature Sensors

Motor Control Circuits

Troubleshooting guide for motor control circuits.

Cooling Operation - Low and High Stage Cool

Heating Operation (Details)

S-61A Checking Heater Limit Control(s)

S-101 Leak Testing (Nitrogen or Nitro-Traced)

Method for leak testing the system with nitrogen.

S-104 Checking Compressor Efficiency

S-110 Checking Expansion Valve Operation

S-8A Checking UC Control Contactor/Relay Contacts

S-10A Copeland Comfort Alert™ Diagnostics

Diagnostics for UC control with Comfort Alert™.

S-13 Checking Low Pressure Control

S-16G Checking Emerson Ultratech™ ECM Motors

Guide for diagnosing Emerson Ultratech™ ECM motors.

Electrical Checks - High Voltage Power Circuits

Procedures for checking high voltage power circuits.

Motor Control/End Bell Checks

S-16H ECM CFM Adjustments AVPTC/MBVC

Guide for adjusting ECM motor CFM settings.

S-17A Resistance Test

Procedure for testing compressor winding resistance.

S-21 Checking Reversing Valve and Solenoid

Procedure to check the reversing valve.

S-40A AVPTC/MBVC Electronic Blower/Heater Control

Data Line Voltage Troubleshooting and Bias Switches

Troubleshooting communication data lines and bias switches.

Heating Operation - Auxiliary/Emergency Heat

S-61B Checking Heater Fuse Link

S-102 Evacuation

Procedure for system evacuation.

S-108 Superheat

S-17B Ground Test

Procedure for checking compressor ground faults.