American Standard 4A7A4018-060 User Manual

11-AC11D1-9E-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.
Condensing Units
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. Some of the benefits of
installing approved matched indoor and outdoor split systems are maximum efficiency, optimum performance and the best overall
system reliability.
4A7A4018 – 060
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 .................................................. 15
Section 13. Start Up.............................................................................. 16
Section 14. System Charge Adjustment............................................. 17
Section 15. Checkout Procedures ...................................................... 23
Section 16. Refrigerant Circuits .......................................................... 23
Section 17. Wiring Diagrams ............................................................... 26
Section 18. Pressure Curves ............................................................... 36
Installation and Operation Manual

American Standard 4A7A4018-060 Specifications

General

Model Number	4A7A4018-060
Brand	American Standard
Category	Air Conditioner
Type	Split System
Refrigerant	R-410A
Voltage	208/230V
Phase	1
HSPF	Not Applicable
Cooling Capacity	1.5 tons (18, 000 BTU/h)
Compressor Type	Single Stage

Summary

Safety and Precautions

General Safety Warnings and Cautions

Covers electrical hazards, refrigerant handling, chemical exposure, and installation cautions.

Refrigerant System Installation

Refrigerant Line and Valve Sizing

Refrigerant Line Brazing Procedure

Step-by-step instructions for brazing refrigerant lines.

Leak Check and Evacuation

Procedures for checking for leaks and evacuating the system.

Electrical System Installation

Low Voltage Hook-up Diagrams

High Voltage Power Supply and Grounding

Guidelines for safe high voltage power connection and grounding.

System Startup and Charging

System Startup Procedure

Steps to follow for initial system power-up and operation.

System Charge Adjustment

Detailed procedures for setting the correct refrigerant charge.

Final Checks and Diagrams

Operational and Checkout Procedures

Wiring Diagrams