Table of Contents
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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.
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.
Table of Contents
Section 1. Safety ..................................................................................... 2
Section 2. Unit Location Considerations ............................................. 3
Section 3. Unit Preparation.................................................................... 4
Section 4. Setting the Unit ..................................................................... 5
Section 5. Refrigerant Line Considerations ......................................... 5
Section 6. Refrigerant Line Routing ..................................................... 6
Section 7. Refrigerant Line Brazing ...................................................... 7
Section 8. Refrigerant Line Leak Check ............................................... 9
Section 9. Evacuation ............................................................................ 9
Section 10. Service Valves .................................................................. 10
Section 11. Electrical - Low Voltage ................................................... 10
Section 12. Electrical - High Voltage .................................................. 13
Section 13. Start Up.............................................................................. 14
Section 14. System Charge Adjustment............................................. 15
Section 15. Checkout Procedures ...................................................... 20
Section 16. Refrigeration Circuits........................................................20
Section 17. Wiring Diagrams................................................................23
Section 18. Pressure Curves................................................................37
Installation and Operation Manual
Condensing Units
4A7A6018 - 061
11-AC36D1-7D-EN
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Table of Contents
Related Manuals for American Standard 4A7A6036J
Summarization of Contents
Section 2. Unit Location Considerations
Unit Dimensions and Weight
Provides unit dimensions and weight specifications for various models.
Refrigerant Piping Limits
Details maximum allowable refrigerant line lengths and vertical changes.
Suggested Locations for Best Reliability
Offers guidance on optimal placement for reliable unit operation and airflow.
Coastal Considerations
Addresses specific installation requirements for coastal environments.
Section 3. Unit Preparation
Prepare The Unit For Installation
Outlines steps for checking and preparing the unit before installation.
Section 4. Setting the Unit
Pad Installation
Details considerations for installing the unit on a support pad.
Section 5. Refrigerant Line Considerations
Refrigerant Line and Service Valve Connection Sizes
Specifies line and valve connection sizes based on model number.
Factory Charge
Explains factory refrigerant charge and verification methods.
Required Refrigerant Line Length
Instructions for determining required refrigerant line length and lift.
Refrigerant Line Insulation
Guidelines for insulating refrigerant lines, emphasizing vapor line insulation.
Reuse Existing Refrigerant Lines
Precautions for using existing refrigerant lines in retrofit applications.
Section 6. Refrigerant Line Routing
Precautions
Important safety and installation precautions for routing refrigerant lines.
Section 7. Refrigerant Line Brazing
Braze The Refrigerant Lines
Step-by-step instructions and precautions for brazing refrigerant lines.
Section 8. Refrigerant Line Leak Check
Check For Leaks
Procedures for pressurizing lines and checking for refrigerant leaks.
Section 9. Evacuation
Evacuate the Refrigerant Lines and Indoor Coil
Steps for evacuating the system to the required micron level.
Section 10. Service Valves
Open the Gas Service Valve
Instructions for safely opening the gas service valve.
Open the Liquid Service Valve
Instructions for safely opening the liquid service valve with warnings.
Section 11. Electrical - Low Voltage
Low Voltage Maximum Wire Length
Table defining maximum low voltage wire lengths based on wire size.
Low Voltage Hook-up Diagrams
Diagrams illustrating low voltage wiring connections for various thermostats and air handlers.
Section 12. Electrical - High Voltage
High Voltage Power Supply
Guidelines for connecting the high voltage power supply.
High Voltage Disconnect Switch
Recommendations for installing a high voltage disconnect switch.
High Voltage Ground
Requirements for grounding the outdoor unit according to codes.
Section 13. Start Up
System Start Up
Step-by-step procedure for starting the installed system.
Section 14. System Charge Adjustment
Temperature Measurements
Instructions for taking temperature measurements for system charging.
Subcooling Charging in Cooling (Above 55° F Outdoor Temp.)
Detailed procedure for subcooling charging in cooling mode.
Weigh-In Method for Charging
Explains the weigh-in method for charging refrigerant.
Section 15. Checkout Procedures
Operational And Checkout Procedures
Comprehensive checklist for final operational and system checks.
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