Trane 4TTR6048N User Manual

18-AC98D1-7D-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.
4TTR6018 – 061
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

Trane 4TTR6048N Specifications

General

Model	4TTR6048N
Type	Heat Pump
SEER Rating	16
HSPF Rating	9.0
Refrigerant	R-410A
Voltage	208/230V
Phase	1
Sound Level (Outdoor Unit)	74 dB
Cooling Capacity	48000 BTU/h
Heating Capacity	48000 BTU/h
Compressor Type	Scroll

Summary

Section 1. Safety

Electrical Safety Warnings

Alerts on risks associated with live electrical components during installation and service.

Refrigerant Handling and Safety Precautions

Details R-410A refrigerant safety, pressures, oil, and valve handling.

Section 5. Refrigerant Line Considerations

Factory Refrigerant Charge Information

Section 7. Refrigerant Line Brazing Procedures

Preparing and Brazing Refrigerant Lines

Step-by-step guide for deburring, cleaning, purging, and brazing lines.

Section 8. Refrigerant Line Leak Check

Performing Refrigerant Line Leak Detection

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

Section 9. System Evacuation

Evacuating Refrigerant Lines and Coil

Instructions for evacuating the system to a specific micron level using a vacuum pump.

Section 11. Low Voltage Electrical Connections

Low Voltage Wiring Diagrams

Section 12. High Voltage Electrical Requirements

High Voltage Power Supply and Grounding

Covers power supply requirements, compliance, and grounding procedures.

Section 13. System Start-Up Procedure

Step-by-Step System Start-Up Guide

Outlines the sequence of steps for safely starting the installed HVAC system.

Section 14. System Charge Adjustment

Temperature Measurements for Charging

Explains measurement methods and charging approaches like subcooling and superheat.

Subcooling Charging Method in Cooling

Detailed procedure for adjusting system charge using subcooling at higher ambient temperatures.

Weigh-In Method for System Charging

Describes the weigh-in method for charging when other methods are not feasible.

Section 15. Checkout Procedures

Final Unit Operational and Checkout Checklist

A comprehensive list of checks for ensuring proper installation and operation.

Section 17. Wiring Diagrams

Wiring Diagrams for 024N & 036N Models

Wiring Diagrams for 048N Models

Wiring Diagrams for 060N Models

Wiring Diagrams for 018J, 030J, 036J, 048J Models

Wiring Diagrams for 035J Models

Wiring Diagrams for 049J & 061C Models

Wiring Diagrams for 060J & 060K Models

Section 18. Pressure Curves

Cooling Pressure Curves for 4TTR60xxN1 Series

Illustrates liquid and suction pressures vs outdoor temperature for N1 models.

Cooling Pressure Curves for 4TTR60xxJ1 Series

Cooling Pressure Curves for 4TTR60xxJ1/C1 Series

Cooling Pressure Curves for 4TTR6060K1 Model