American Standard 4A7V8036A1000B 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™™
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Service Facts

American Standard 4A7V8036A1000B Specifications

General

Brand	American Standard
Model Number	4A7V8036A1000B
Category	Air conditioning
SEER Rating	16
SEER	16
Refrigerant	R-410A
Voltage	208/230V
Phase	1
Sound Level (Outdoor Unit)	72 dB
Stages	2-Stage

Summary

Outdoor Unit Safety

Electrical Safety Precautions

Warnings regarding hazardous voltage, grounding, and high leakage current.

Refrigerant Handling Procedures

Guidelines for safe handling of refrigerants, oil, and service valves.

400V Electrical Hazard Warning

Detailed warning about 400VDC electrical hazard and required wait times.

Product Specifications

Charging Procedures

Subcooling Charging Method

Detailed procedure for subcooling charging in cooling mode, including corrections.

Weigh-In Charging Method

Procedure for charging systems using the weigh-in method for new installations and repairs.

Wiring and Control System

Wiring Diagram and Legend

IVSC Inputs/Outputs and Indicators

Identification of IVSC board connections and explanation of LED indicators.

Control Board Features

Details on LED indicators and sump heat control guidelines for the control board.

Sequence of Operation

Control Overview and Cooling Mode

Heat Pump Heating and Defrost Modes

Defrost Control

Demand Defrost and CDA Navigation

Variable Speed Alert Codes

General System Fault Alerts

EEV, Defrost, and Startup Faults

Drive, Protection, and Derating Faults

Troubleshooting Flowcharts

Communication Loss and Breaker Trips

Compressor and Drive Diagnostics

Procedures for compressor verification and running drive diagnostics.

Inverter and EEV Troubleshooting

Display Assembly Menus

CDA Menus Overview