American Standard 4A6V8060A1000B User Manual

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Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and
air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered
equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the
literature and on the tags, stickers, and labels that are attached to the equipment.
August 2017
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Variable Speed AccuLink™™
Heat Pumps and Air Conditioners
4A6V8024A1000B
4A6V8036A1000B
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4A6V8048A1000B
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4A6V8060A1000B
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4A7V8037A1000B
4A7V8048A1000B
4A7V8060A1000B
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Service Facts

American Standard 4A6V8060A1000B Specifications

General

Model Number	4A6V8060A1000B
Brand	American Standard
Category	Air conditioning
Refrigerant Type	R-410A
Phase	1
Cooling Capacity	60, 000 BTU/H
Voltage	208/230V
Warranty	10-year limited warranty on parts

Summary

Service Facts

Safety Warning

General safety warning for handling the equipment.

Safety Section - Outdoor

Electrical Safety Precautions

Covers hazardous voltage, grounding, and high leakage current.

400 Volt Electrical Hazard

Specific warning regarding the 400-volt electrical hazard.

Refrigerant and Service Safety

Guidelines for safe handling of refrigerant and service valves.

Product Specifications

Heat Pump Model Specifications

Detailed specifications for heat pump models.

Heat Pump Model Specifications (Continued)

Continuation of specifications for heat pump models.

Air Conditioner Model Specifications

Detailed specifications for air conditioner models.

Air Conditioner Model Specifications (Continued)

Continuation of specifications for air conditioner models.

Subcooling Charging in Cooling

Charging Method for 55°F to 120°F Ambient

Details on subcooling charging method for specific ambient temperatures.

Charging: Weigh-In Method

New Installation Weigh-In Method

Sealed-System Repairs Weigh-In Method

Wiring Diagram D157619P04

Wiring Diagram and Legend

Integrated Variable Speed Control (IVSC)

IVSC Inputs and Outputs Overview

Sequence of Operation

Control Operational Overview

Heat Pump Heating Mode

System operation during heat pump heating mode.

Cooling Mode Operation

How the system operates in cooling mode for A/C and Heat Pump.

Defrost Mode Operation

Details on defrost modes from cycling and modulating stages.

Defrost Control (Heat Pump only)

Demand Defrost Operation

Sensors

Compressor Dome Temperature Sensor

Ambient Temperature Sensor (ODS)

Coil and Suction Temperature Sensors

Suction Line Pressure Transducer

Variable Speed Alert Codes

Control Failure and Temp Sensor Faults

Pressure, Ground, and Communication Faults

PM, EEV, Charge, and Superheat Faults

Limp Mode, Modbus, and Drive Current Faults

DC Voltage Failure Alerts

Power Module and Supply Voltage Faults

Gate Drive, Rotation, and Motor Faults

ADC and Startup Algorithm Faults

Protection Algorithm Faults (Continued)

Protection Derating Faults

MOC Protection and Evacuation Mode

Drive Diagnostics and Configuration Faults

Voltage and Control Board Faults

Load Shedding

External Shutdown Functionality

Communication Loss Troubleshooting

Troubleshooting Flowchart

Breaker Trip Procedure

Start Compressor Troubleshooting

Troubleshooting Flowchart

Flowchart for diagnosing compressor start issues.

Compressor Verification: Parameters

Parameter Verification Flowchart

Run Drive Diagnostic Test

Diagnostic Test Flowchart

Flowchart for executing and interpreting drive diagnostic tests.

Compressor Verification: Short

Short Circuit Troubleshooting

Steps to troubleshoot compressor short circuits.

Compressor Verification: Open

Open Circuit Troubleshooting

Steps to troubleshoot compressor open circuits.

Inverter Temperature Troubleshooting

Temperature Monitoring and Diagnostics

Checking inverter and rectifier temperatures for de-rates or shutdowns.

EEV Troubleshooting Flowchart

EEV Operation and Fault Diagnosis

Troubleshooting steps for Electronic Expansion Valve (EEV) issues.

Technician Configuration Menu

System Parameter Configuration

Technician Control Menu

Initiating Unit Tests

How to run diagnostic tests like Drive and Fan tests.

Test Procedures and Notes

Details on Forced Defrost, EEV, LSOV, and Evacuation tests.

Charge/Check Charge Modes

Mode Operation and Notes

Warranty Claim Process

Integrated Variable Speed Control (IVSC) Warranty