Amana AVZC20 Series User Manual

® Brand AVZC20 Inverter
Heat Pump Condenser Units
with R-410A Refrigerant
Blowers, Coils, & Accessories
This manual is to be used by qualified, professionally trained HVAC technicians only.
The manufacturer does not assume any responsibility for property damage or personal injury
due to improper service procedures or services performed by an unqualified person.
© 2015-2016 Goodman Manufacturing Company, L.P.
®
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
Service Instructions
RS6215002r7
October 2016

Amana AVZC20 Series Specifications

General

Efficiency	Up to 20 SEER
HSPF Rating	Up to 10 HSPF
Cooling Stages	Variable Speed
Refrigerant	R-410A
Warranty	10-Year Parts Limited Warranty
Sound Level	As low as 57 dB
Compressor	Inverter-driven Scroll
Cabinet	Heavy-Gauge, Galvanized Steel

Summary

IMPORTANT INFORMATION

ELECTRICAL BOARD REPLACEMENT

Step-by-step guide for replacing the electrical board.

COOLING ANALYSIS CHART

Table for troubleshooting cooling system issues based on parameters.

HEATING ANALYSIS CHART

Table for troubleshooting heating system issues based on parameters.

SERVICING

CHECKING VOLTAGE AND WIRING

Procedure to measure voltage and check wiring integrity.

SYSTEM START-UP TEST PROCEDURE

Procedure for running the initial system test.

SETTING CHARGE MODE

Instructions to put the thermostat in charge mode for system charging.

FORCING DEFROST CYCLE

Step-by-step guide to initiate a defrost cycle via the thermostat.

PUMP DOWN MODE PROCEDURE

Procedure to enter PUMP DOWN mode for refrigerant accumulation.

CHECKING TRANSFORMER AND CONTROL CIRCUIT

Procedures for testing the transformer and control circuit.

COMPRESSOR CHECKING AND GROUND TEST

Warnings and procedures for checking compressor and ground tests.

REFRIGERATION REPAIR PRACTICES

General practices for repairing refrigeration systems.

EVACUATION PROCEDURE

Step-by-step procedure for evacuating the refrigeration system.

REFRIGERANT CHARGING AND ADJUSTMENT

Instructions for charging the system with refrigerant.

SUBCOOLING AND TXV OPERATION CHECK

Procedure to measure and adjust subcooling and TXV operation.

INDOOR UNIT TROUBLESHOOTING OVERVIEW

Troubleshooting for indoor units, including error codes and blower operation.

ESD PRECAUTIONS AND FAULT RECALL

Safety measures for static discharge and fault recall.

7-SEGMENT LED DIAGNOSTIC CODES

Table listing 7-segment LED codes and their descriptions.

INDOOR UNIT ERROR CODES

Table of indoor unit error codes and their causes/corrections.

INDOOR UNIT ERROR CODES CONTINUED

Continuation of indoor unit error codes, causes, and corrective actions.

FURTHER INDOOR UNIT ERROR CODE DETAILS

Further details on indoor unit error codes, probable causes, and corrective actions.

FINAL INDOOR UNIT ERROR CODE REVIEW

Final part of indoor unit error codes, causes, and corrective actions.

EMERGENCY MODE OPERATION

When and how to use emergency mode for communication issues.

HEATING EMERGENCY MODE SETUP

How to enable and operate heating in emergency mode.

DIP SWITCH SETTINGS FOR EMERGENCY MODE

COOLING EMERGENCY MODE SETUP

SETTING THE MODE DISPLAY

7-SEGMENT DISPLAY SCREENS

TROUBLESHOOTING

OUTDOOR UNIT ERROR CODES

Table of outdoor unit error codes, causes, and corrective actions.

OUTDOOR UNIT ERROR CODES CONTINUED

Continuation of outdoor unit error codes, probable causes, and corrective actions.

FURTHER OUTDOOR UNIT ERROR CODE DETAILS

Further details on outdoor unit error codes, probable causes, and corrective actions.

FINAL OUTDOOR UNIT ERROR CODE REVIEW

Final part of outdoor unit error codes, causes, and corrective actions.

RE-WRITING SHARED DATA TO OUTDOOR UNIT

TROUBLESHOOTING

RE-WRITING SHARED DATA PROCEDURE