Trane 4TTR5018-060 User Manual

18-AC123D1-1C-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.
4TTR5018 – 060
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 ............................................... 7
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 (Reference only)...........................17
Section 17. Wiring Diagrams................................................................18
Section 18. Pressure Curves................................................................21
Installation and Operation Manual

Trane 4TTR5018-060 Specifications

General

Model Number	4TTR5018-060
Category	Heat Pump
Refrigerant Type	R-410A
Voltage (V)	208/230
Phase	1
Stages	1
Heating Capacity (BTU/H)	60, 000
Heating Capacity (tons)	5
Compressor Type	Scroll

Summary

Safety Precautions

General Safety Guidelines

Important warnings for users regarding experience, interpretation of information, and proper appliance use.

Electrical & Refrigerant Hazards

Hazards associated with live electrical components, high-pressure refrigerants, and chemical exposure.

Unit Location Considerations

Unit Dimensions and Weight

Details on unit dimensions, weight, and recommended placement for optimal performance and reliability.

Refrigerant Piping Limits

Guidelines for refrigerant line length and vertical change limitations.

Suggested Installation Locations

Recommendations for placing the outdoor unit for best reliability and airflow.

Unit Preparation and Refrigerant Setup

Unit Preparation and Pad Installation

Procedures for preparing the unit and requirements for installing a support pad.

Refrigerant Line and Valve Sizes

Specifications for refrigerant line and service valve connection sizes.

Factory Refrigerant Charge

Information about the factory-set refrigerant charge for the unit.

Refrigerant Line Management

Refrigerant Line Length and Insulation

Required refrigerant line length and importance of vapor line insulation.

Reusing Existing Refrigerant Lines

Precautions for using existing refrigerant lines in retrofit applications.

Refrigerant Line Routing Precautions

Guidelines for routing lines to prevent noise and ensure proper installation.

Refrigerant Line Integrity

Refrigerant Line Brazing Procedure

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

Refrigerant Leak Check

Method for checking refrigerant lines for leaks using dry nitrogen.

System Evacuation and Service Valves

Evacuating Refrigerant Lines and Coil

Procedure for evacuating refrigerant lines and indoor coil to the required vacuum level.

Opening Service Valves

Step-by-step instructions for safely opening gas and liquid service valves.

Low Voltage Electrical

Low Voltage Wire Length Limits

Maximum total length of low voltage wiring based on wire size.

Low Voltage Hook-up Diagrams

Diagrams illustrating low voltage wiring connections for various thermostats and air handlers.

High Voltage and System Startup

High Voltage Power Supply and Grounding

Requirements for high voltage power supply, disconnect switch, and grounding.

System Start Up Procedure

Steps to follow for starting up the HVAC system after installation.

System Charge Adjustment

Temperature Measurements for Charging

Measuring outdoor and indoor temperatures for accurate system charging.

Subcooling Charging Method

Procedure for adjusting system charge using subcooling based on line length and lift.

Advanced Charging and Checkout

Weigh-In Method for Charging

Alternative method for calculating and adding refrigerant charge.

Operational Checkout Procedures

Checklist for verifying proper installation and system operation.

Refrigerant Circuit Diagram

Refrigerant Flow Schematic

Schematic illustrating the refrigerant flow through the system components.

Wiring Diagrams

Wiring Diagram for 018N-048N Models

Electrical schematic for Trane condensing unit models 018N through 048N.

Wiring Diagram for 060N Model

Electrical schematic for Trane condensing unit model 060N.

Pressure Curves

Pressure Curves for Models 018N-048N

Charts showing liquid and suction pressures relative to outdoor temperature for models 018N through 048N.

Pressure Curves for Model 060N

Charts showing liquid and suction pressures relative to outdoor temperature for model 060N.