American Standard Link 4A7V8X48A1000A 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 2022
1111--BBCC4455DD11--11CC--EENN
American Standard Link or AccuLink™™
Variable Speed Heat Pumps and Air Conditioners
4A6V8X24A1000A
4A6V8X36A1000A
4A6V8X48A1000A
4A6V8X60A1000A
4A7V8X24A1000A
4A7V8X36A1000A
4A7V8X48A1000A
4A7V8X60A1000A
TM
The Diagnostics Mobile App is available by scanning a QR code
located inside this unit or by searching for the Link Diagnostics App
in your App Store
® .
NNoottee:: “Graphics in this document are for representation only. Actual
model may differ in appearance.”
NNoottee:: This unit can be used in AccuLink
™ mode or American Standard
Link mode.
Installer’s Guide

American Standard Link 4A7V8X48A1000A Specifications

General

Brand	American Standard
Model	Link 4A7V8X48A1000A
Category	Air Conditioner
Language	English

Summary

Safety Section

Hazardous Voltage Safety

Details hazards of high voltage and lockout/tagout procedures.

Refrigerant Oil Handling

Discusses R-410A refrigerant properties and oil handling precautions.

Hot Surface Caution

Refrigerant System Safety

Electrical Grounding Procedures

Service Valve Operation Safety

Warns about abrupt release of system charge when opening service valves.

Brazing and Leak Testing

Stresses leak testing after brazing mechanical connections.

High Leakage Current Hazards

Highlights danger of high leakage current and need for earth connection.

Residual Voltage Hazard Warning

Warns about dangerous residual charge in electrical components after power disconnect.

Refrigerant Line Brazing

Refrigerant Line Leak Check

Refrigerant Line and Indoor Coil Evacuation

Service Valves

Start Up

System Charge Adjustment

Subcool Charging Correction Charts

Charging the Unit

Subcooling Charging Below 55° F Outdoor Temp. (In Heating Only)

Defrost Control (Heat Pump only)

Demand Defrost Operation

Fault Indication Methods

Demand Defrost Enablement

Defrost Initiation Criteria

Checkout Procedures