Trane 4TTR6024N 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 4TTR6024N Specifications

General

Brand	Trane
Model	4TTR6024N
Category	Heat Pump
Language	English

Summary

Section 1. Safety

Safety Warnings and Precautions

Critical warnings on electrical hazards, proper appliance use, and chemical exposure.

Section 2. Unit Location Considerations

Unit Dimensions and Weight

Technical specifications for unit dimensions and weight.

Refrigerant Piping Limits

Specifies maximum total and vertical refrigerant line lengths.

Suggested Locations for Best Reliability

Guidance on optimal unit placement for airflow and noise.

Coastal Considerations

Recommendations for coastal installations, including salt shields.

Section 3. Unit Preparation

Prepare The Unit For Installation

Steps to prepare the unit, including checking for damage and removing from pallet.

Section 4. Setting the Unit

Pad Installation

Guidelines for installing the unit on a support pad.

Section 5. Refrigerant Line Considerations

Refrigerant Line and Service Valve Connection Sizes

Details line sizes and connection types for refrigerant and service valves.

Factory Charge

Information on factory refrigerant charge and verification methods.

Required Refrigerant Line Length

Instructions to determine required refrigerant line length and lift.

Refrigerant Line Insulation

Importance of insulating the vapor line and preventing contact.

Reuse Existing Refrigerant Lines

Precautions for reusing existing refrigerant lines.

Section 6. Refrigerant Line Routing

Precautions

Guidelines to prevent noise and ensure proper routing of refrigerant lines.

Section 7. Refrigerant Line Brazing

Braze The Refrigerant Lines

Step-by-step instructions for brazing refrigerant lines.

Section 8. Refrigerant Line Leak Check

Check For Leaks

Procedure to pressure test and check for leaks in refrigerant lines.

Section 9. Evacuation

Evacuate the Refrigerant Lines and Indoor Coil

Steps to evacuate the system to a specific micron level.

Section 10. Service Valves

Open the Gas Service Valve

Procedure to open the gas service valve.

Open the Liquid Service Valve

Procedure to safely open the liquid service valve.

Section 11. Electrical - Low Voltage

Low Voltage Maximum Wire Length

Defines maximum lengths for low voltage wiring based on gauge.

Low Voltage Hook-up Diagrams

Wiring diagrams for connecting thermostat and air handler to outdoor unit.

Section 12. Electrical - High Voltage

High Voltage Power Supply

Information on high voltage power supply requirements and compliance.

High Voltage Disconnect Switch

Recommendation to install a separate disconnect switch for high voltage.

High Voltage Ground

Requirements for grounding the outdoor unit.

Section 13. Start Up

System Start Up

Step-by-step procedure for starting the system.

Section 14. System Charge Adjustment

Temperature Measurements

Guidelines for temperature measurements and charging methods.

Subcooling Charging in Cooling

Procedure for subcooling charging in cooling mode above 55°F.

Weigh-In Method for Charging

Method for charging the system by weight.

Section 15. Checkout Procedures

Operational And Checkout Procedures

Final checks and operational procedures after installation.

Section 16. Refrigeration Circuits

Refrigeration Circuit Diagrams by Model

Diagrams illustrating refrigerant flow for various unit models.

Section 17. Wiring Diagrams

Wiring Diagrams by Model

Electrical wiring schematics for different unit models.

Section 18. Pressure Curves