American Standard 4A6H5030H User Manual

11-BC26D1-11-EN
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
Heat Pumps
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the
purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.
Note: The manufacturer recommends installing only approved matched indoor and outdoor systems. All of the manufacture’s split
systems are AHRI rated only with TXV/EEV indoor systems. Some of the benefits of installing approved matched indoor and out-
door split systems are maximum efficiency, optimum performance and the best overall system reliability.
4A6H5
Installer’s Guide
Table of Contents
Section 1. Safety ..................................................................................... 2
Section 2. Unit Location Considerations.............................................. 3
Section 3. Unit Preparation .................................................................... 5
Section 4. Setting the Unit ..................................................................... 5
Section 5. Refrigerant Line Considerations ......................................... 6
Section 6. Refrigerant Line Routing ..................................................... 7
Section 7. Refrigerant Line Brazing ...................................................... 8
Section 8. Refrigerant Line Leak Check ............................................. 10
Section 9. Evacuation ........................................................................... 11
Section 10. Service Valves ................................................................... 11
Section 11. Electrical - Low Voltage .................................................... 12
Section 12. Electrical - High Voltage ................................................... 14
Section 13. Start Up .............................................................................. 15
Section 14. System Charge Adjustment ............................................. 16
Section 15. Checkout Procedures and Troubleshooting ................... 23

American Standard 4A6H5030H Specifications

General

Type	Heat Pump
Refrigerant	R-410A
Voltage	208/230 V
Phase	1
Brand	American Standard
Model Number	4A6H5030H
Category	Heat Pump
Cooling Capacity	30000 BTU/h
Heating Capacity	30000 BTU/h
Compressor Type	Single Stage
Warranty	10-year limited warranty on compressor

Summary

Section 1. Safety

General Safety Information and Warnings

General safety information and warnings for individuals with electrical and mechanical backgrounds.

R-410A Refrigerant and Oil Handling Precautions

Precautions for handling R-410A refrigerant, POE oil, and R-22 comparisons.

Electrical Safety Precautions

Safety warnings for working with live electrical components during installation and servicing.

Refrigerant Line and Compressor Cautions

Cautions regarding brazing refrigerant lines and hot compressor dome temperatures.

Liquid Line Service Valve Handling

Extreme caution for opening the Liquid Line Service Valve to prevent charge release.

Section 5. Refrigerant Line Considerations

Section 7. Refrigerant Line Brazing

Braze The Refrigerant Lines

Step-by-step instructions for preparing, purging, and brazing refrigerant lines and service valves.

Section 8. Refrigerant Line Leak Check

Check For Leaks

Section 9. Evacuation

Evacuate the Refrigerant Lines and Indoor Coil

Section 11. Electrical - Low Voltage

Low Voltage Hook-up Diagrams

Defrost Control

Section 12. Electrical - High Voltage

Section 13. Start Up

System Start Up

Steps for starting up the unit, including thermostat settings, power application, and waiting periods.

Section 14. System Charge Adjustment

Subcooling Charging in Cooling (Above 55° F Outdoor Temp.)

Method for charging based on subcooling for outdoor temperatures above 55° F.

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

Alternative charging method (weigh-in) for outdoor temperatures below 55° F, or when subcooling is not applicable.

Section 15. Checkout Procedures and Troubleshooting

Operational And Checkout Procedures

Troubleshooting

System fault diagnosis guide correlating symptoms with potential causes and checks for refrigerant and electrical issues.