American Standard 4A6H6018H1000A 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 2016
4A6H6018H-SF-1C-EN
Split System Heat Pump
4A6H6018H1000A
NNoottee:: “Graphics in this document are for representation
only. Actual model may differ in appearance.”
Service Facts

American Standard 4A6H6018H1000A Specifications

General

Model Number	4A6H6018H1000A
Category	Heat Pump
Brand	American Standard
Cooling Capacity (BTU)	18000
Cooling Capacity (Ton)	1.5
SEER	16
Refrigerant	R-410A
Voltage	208/230
Phase	1
Compressor Type	Scroll
Sound Level (dB)	72
HSPF	9.0

Summary

Service Facts and Safety

Safety Warnings

Crucial safety precautions for installation and servicing of HVAC equipment.

General Safety Information

General Safety Warnings

Covers hazardous voltage, refrigerant, hot surface, grounding, and service valves.

Refrigerant Oil Handling

Information on R-410A refrigerant and POE oil handling precautions.

Refrigerant Charging Methods

Subcooling Charging (Cooling Mode)

Weigh-In Method for Charging

Defrost Control System

Defrost Control System Overview

Defrost Control Diagnostics

Defrost Control LED Faults

LED Fault Code Descriptions

Compressor Troubleshooting

Compressor Fails to Start

Diagnostic steps when the compressor does not start.

Compressor Operation Troubleshooting

Compressor Won't Run Properly

Steps to diagnose why the compressor runs but doesn't operate correctly.

TXV Troubleshooting

Outdoor TXV / Heating Mode Diagnosis

Performance Pressure Curves

Cooling and Heating Performance Curves