18-AC131D1-1A-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
information pack upon completion of work.
Condensing Units
5TTA3036 - 060
Installation and Operation Manual
Table of Contents
Section 1. Safety ..................................................................................... 2
Section 2. Unit Location Considerations ............................................. 3
Section 3. Unit Preparation.................................................................... 4
Section 4. Setting the Unit ..................................................................... 4
Section 5. Refrigerant Line Considerations ......................................... 4
Section 6. Refrigerant Line Routing ..................................................... 5
Section 7. Refrigerant Line Brazing ...................................................... 7
Section 8. Refrigerant Line Leak Check ............................................... 8
Section 9. Evacuation ............................................................................ 8
Section 10. Service Valves .................................................................... 8
Section 11. Electrical - Low Voltage ..................................................... 9
Section 12. Electrical - High Voltage .................................................. 11
Section 13. Start Up.............................................................................. 11
Section 14. System Charge Adjustment............................................. 12
Section 15. Checkout Procedures ...................................................... 16
Section 16. Refrigeration Circuits........................................................18
Section 17. Wiring Diagrams................................................................20
Section 18. Pressure Curves................................................................23
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.
Note: R-454B refrigerant is an “A2L” refrigerant meaning: A = non-toxic, 2 = flammable, L = low burning velocity.
The term “A2L” is used throughout this document.
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