American Standard 4A6V8048A1000B - 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
44AA--VV88--SSFF--11GG--EENN
Variable Speed AccuLink™™
Heat Pumps and Air Conditioners
4A6V8024A1000B
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4A6V8048A1000B
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4A6V8060A1000B
4A7V8024A1000B
4A7V8036A1000B
4A7V8037A1000B
4A7V8048A1000B
4A7V8060A1000B
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Service Facts

Summary

SAFETY SECTION - OUTDOOR

HAZARDOUS VOLTAGE!

Warning about severe personal injury or death from hazardous voltage.

REFRIGERANT OIL!

Caution regarding property damage and injury from refrigerant oil handling.

CONTAINS REFRIGERANT!

Warning about high pressure refrigerant and need for recovery before system opening.

GROUNDING REQUIRED!

Emphasizes the necessity of proper grounding for all parts conducting electrical current.

SERVICE VALVES!

Caution for safe operation of service valves to prevent abrupt release of system charge.

HIGH LEAKAGE CURRENT!

Warning about potential severe injury or death due to high leakage current.

Integrated Variable Speed Control (IVSC)

IVSC Inputs and Outputs Overview

Details the function of various input/output ports on the IVSC board.

IVSC LED Indicators and Sump Heat Control

Communication Loss Troubleshooting

Communication Loss Diagnosis Flowchart

Provides a step-by-step guide for troubleshooting communication loss issues.

Breaker Trip Procedure

Breaker Trip Troubleshooting Flowchart

Outlines a procedure for diagnosing and resolving breaker trip issues.

Compressor Start and Verification

Compressor Start Troubleshooting

Guides on troubleshooting issues during compressor start-up, including drive current failures.

Compressor Parameters Verification

Compressor Short;Open Verification

Provides procedures for testing compressor windings for shorts or open circuits.

Drive System Diagnostics

Run Drive Diagnostic Test Procedure

Explains how to perform and interpret the results of the drive diagnostic test.

Inverter Temperature Management

Inverter Temperature Troubleshooting

Guides on diagnosing issues related to excessive inverter or rectifier temperatures.

Electronic Expansion Valve (EEV) Troubleshooting

EEV Troubleshooting Flowchart

Provides a flowchart for diagnosing EEV operational problems in heating and cooling modes.

Technician Configuration and Control

Configuration Menu Options

Control Menu Tests and Modes

Details tests like Drive Diagnostics and OD Fan tests available in the Control Menu.

Charge;Check Charge Modes

Explains how to use the Charge/Check Charge modes for system charging verification.

American Standard 4A6V8048A1000B Specifications

General

Model Number	4A6V8048A1000B
Refrigerant	R-410A
Phase	1
Type	Air Conditioner
Voltage	208/230V