Trane 4TTR3018-060 - User Manual

18-AC79D1-6-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. All of the manufacture’s split
systems are A.H.R.I. rated only with TXV/EEV indoor 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.
4TTR3018–060
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 .................................................... 13
Section 12. Electrical - High Voltage ................................................... 16
Section 13. Start Up .............................................................................. 17
Section 14. System Charge Adjustment ............................................. 18
Section 15. Checkout Procedures and Troubleshooting ................... 22

Summary

Safety

Refrigerant Line Considerations

Refrigerant Line Insulation

Refrigerant Line Brazing

Braze Refrigerant Lines

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

Refrigerant Line Leak Check

Check for Refrigerant Leaks

Procedures for pressurizing lines with nitrogen and checking for leaks using soapy solution.

Evacuation

Evacuate Refrigerant Lines and Coil

Instructions for evacuating the system to a specific micron level for moisture removal.

Service Valves

Open Gas Service Valve

Steps to safely open the gas service valve after leak check and evacuation are complete.

Open Liquid Service Valve

Procedure for opening the liquid service valve with caution to avoid system charge release.

Electrical - Low Voltage

Low Voltage Hook-up Diagrams

Electrical - High Voltage

High Voltage Power Supply Requirements

Start Up

System Start Up Procedure

System Charge Adjustment

Temperature Measurements for Charging

Subcooling Charging in Cooling Mode

Method for adjusting refrigerant charge based on subcooling, line length, and lift.

Checkout and Troubleshooting

Operational and Checkout Procedures

Final inspection checklist and procedures to ensure proper system operation and safety.

Troubleshooting System Faults

Table listing common system faults, their primary and secondary causes, and checks to perform.

Trane 4TTR3018-060 Specifications

General

Brand	Trane
Model	4TTR3018-060
Category	Air Conditioner
Language	English