Trane 4TTM3060 User Manual

18-AC78D1-6
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
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with the in-
stallation. 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 manufac-
turer’s split systems are A.H.R.I. rated only with TXV 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.
4TTM3018 through 4TTM3060
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 ........................................................... 12
Section 12. Electrical - High Voltage .......................................................... 14
Section 13. Start Up ........................................................................................... 15
Section 14. System Charge Adjustment.................................................. 16
Section 15. Checkout Procedures and Troubleshooting ................ 24
Section 16. Independent Charge Verification ....................................... 26

Trane 4TTM3060 Specifications

General

Model	4TTM3060
Refrigerant	R-410A
Compressor Type	Scroll
Voltage	208/230V
Phase	1
Cooling Capacity	60, 000 BTU/hr (5 tons)
HSPF Rating	Not Applicable

Summary

Safety Precautions

Handling R-410A Refrigerant and POE Oil

Electrical Safety During Operation

Warning about live electrical components and potential for serious injury or death.

Liquid Line Service Valve Caution

Refrigerant Line Brazing

Preparing Refrigerant Lines for Brazing

Brazing Process and Drier Installation

Refrigerant Line Leak Detection

Performing a Refrigerant Line Leak Check

Refrigerant System Evacuation

Evacuating Refrigerant Lines and Coil

Service Valve Operation

Opening and Closing Service Valves

High Voltage Electrical Requirements

High Voltage Power Supply Considerations

Warning about live components and ensuring power supply matches equipment nameplate.

System Start Up Procedure

Performing the System Start Up Sequence

System Charge Adjustment

New Charging Procedure Overview

Introduction to the subcooling-based charging method to prevent overcharging.

Example of Charge Adjustment Calculation

Measuring System Pressures and Temperatures

Steps for measuring outdoor ambient, suction line, and liquid line pressures and temperatures.

Determining Target Liquid Temperature

Using charging tables to find the target liquid temperature based on measured conditions.

Adjusting System Refrigerant Charge

Procedure for determining and making adjustments to the refrigerant charge.

Adding or Removing Refrigerant

Detailed steps for adding or removing refrigerant using the manual charge assist port.

Verifying Refrigerant Charge Adjustment

Post-Installation Checkout

Operational and Checkout Procedure Checklist

System Fault Diagnosis Guide

A table correlating system faults with primary and secondary causes.

Independent Charge Verification

Initial Measurements for Verification

Steps to measure outdoor ambient, suction line pressure, and liquid line pressure.

Calculating Subcooling for Verification

Steps to find target liquid temperature, calculate actual and target subcooling.

Subcooling Difference Analysis

Calculating the subcooling difference and determining if it's within tolerance.