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Trane Technologies 4TWL5024N1000A - User Manual

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Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
June 2022
1188--BBCC111100DD11--11AA--EENN
Side Discharge HP Models
For coastal applications where units are installed within one (1) mile of salt water, epoxy coated models are recommended. These models
have an 8 week lead time after order.
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4TWL5024N1000A
4TWL5030N1000A
4TWL5036N1000A
4TWL5042N1000A
4TWL5048N1000A
4TWL5024N1COTA
4TWL5030N1COTA
4TWL5036N1COTA
4TWL5042N1COTA
4TWL5048N1COTA
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only. Actual model may differ in appearance.”
Installer’s Guide
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Summary

Installers Guide

Side Discharge HP Models Overview

Overview of Trane's Side Discharge Heat Pump models.

Coastal Application Recommendation

Recommendation for epoxy coated models for coastal applications.

Safety Warnings and Precautions

Electrical Safety Warnings

Warnings regarding hazardous voltage and grounding requirements.

Refrigerant and Oil Handling Safety

Precautions for handling refrigerant, oil, and service valves.

Brazing and Leak Testing Safety

Safety considerations for brazing and ensuring leak-free connections.

Hot Surface and Chemical Warnings

Cautions about hot surfaces and chemical exposure (Prop 65).

Unit Location Considerations

Unit Dimensions and Weight

Table detailing unit dimensions and weight for various models.

Refrigerant Piping Limits

Maximum Line Length and Vertical Change

Specifies maximum refrigerant line length and vertical rise.

Suggested Locations for Reliability

Airflow and Clearance Guidelines

Optimal placement and clearance requirements for airflow.

Climate Specific Considerations

Cold Climate Installation Notes

Precautions for units installed in cold climates with snow.

Coastal Installation Requirements

Guidelines for installing units near saltwater environments.

Unit Preparation and Setup

Unit Preparation and Pallet Removal

Steps for checking damage and removing the unit from its pallet.

Pad Installation Guidelines

Criteria for installing a proper support pad for the unit.

Refrigerant Line and Valve Specifications

Line and Valve Connection Sizes

Table of rated line sizes and service valve connection sizes.

Factory Charge and Line Length Calculation

Information on factory charge and determining line length.

Refrigerant Line Insulation Requirements

Guidelines for insulating refrigerant lines for performance.

Refrigerant Line Routing and Isolation

Line Set Routing Precautions

Precautions for routing line sets to prevent noise and damage.

Isolation from Structural Elements

Methods for isolating refrigerant lines from joists, rafters, and walls.

Line Set Isolation Details

Isolation in Wall Spaces

Techniques for isolating line sets within wall cavities.

Isolation Through Walls and Ductwork

Methods for sealing and isolating lines through walls and avoiding ductwork.

Refrigerant Line Brazing

Brazing Preparation and Procedure

Step-by-step instructions for preparing and brazing lines.

Refrigerant Line Brazing Continued

Brazing Valve Bodies and Driers

Brazing instructions for service valves and filter driers.

Leak Check and Evacuation

Refrigerant Line Leak Check

Procedure for pressurizing and checking lines for leaks.

Indoor Coil Evacuation

Steps for evacuating the indoor coil and lines to 350 microns.

Service Valve Operation

Opening the Gas Service Valve

Procedure for safely opening the gas service valve.

Opening the Liquid Service Valve

Procedure for safely opening the liquid service valve.

Electrical - Low Voltage

Low Voltage Wire Length Limits

Maximum wire lengths for low voltage connections by gauge.

Low Voltage Hook-up Diagrams

Wiring diagrams for thermostat and air handler connections.

2 Stage HP Thermostat Wiring

Indoor and Outdoor Unit Connections

Diagram showing thermostat, indoor, and outdoor unit connections.

Electrical - High Voltage

High Voltage Power Supply

Guidelines for high voltage power supply and safety precautions.

High Voltage Disconnect Switch

Requirements for installing a high voltage disconnect switch.

System Start Up

Initial Thermostat and Power Settings

Steps for setting the thermostat and applying power.

Crankcase Heater Delay

Procedure for waiting if crankcase heater is used below 70°F.

Subcooling Charging Procedure

Cooling Mode Charging Method

Recommended subcooling method for cooling above 55°F ambient.

Stabilization and Measurement Steps

Ensuring system stabilization for accurate charge measurements.

System Charge Adjustment

Temperature Measurement Guidelines

Guidelines for measuring temperatures for charging.

Subcooling Correction Worksheet

Worksheet for calculating subcooling corrections based on line length.

R-410 A Refrigerant Charging Chart

Liquid Gage Pressure vs. Temperature

Chart to determine liquid gage pressure based on liquid temperature and subcooling.

Subcool Charging Charts

Charts for 2.0-2.5 Ton Models

Subcooling correction tables for 2.0 and 2.5 ton models.

Charts for 3.0 Ton Models

Subcooling correction tables for 3.0 ton models.

Charts for 3.5-4.0 Ton Models

Subcooling correction tables for 3.5 and 4.0 ton models.

Charging the Unit

System Stabilization and Gauge Removal

Steps to stabilize the system and remove gauges.

Proper Gage Pressure Measurement

Measuring liquid line temperature and pressure for proper charge.

Verify Performance with Pressure Curves

Using pressure curves to verify system performance.

Proper Gage Pressure and System Info

Adjusting Refrigerant Level

Procedure for adding or recovering refrigerant for correct charge.

System Information Recording

Recording system pressures and temperatures after charging.

Checkout Procedures

Pre-Operation Checklist

List of common items to confirm before final operation.

Troubleshooting Guide

Compressor Fails to Start

Troubleshooting steps for a compressor that does not start.

Compressor Troubleshooting

Compressor Wont Run (Contactor Closed)

Troubleshooting steps when the compressor won't run but contactor is closed.

Summary

Installers Guide

Side Discharge HP Models Overview

Overview of Trane's Side Discharge Heat Pump models.

Coastal Application Recommendation

Recommendation for epoxy coated models for coastal applications.

Safety Warnings and Precautions

Electrical Safety Warnings

Warnings regarding hazardous voltage and grounding requirements.

Refrigerant and Oil Handling Safety

Precautions for handling refrigerant, oil, and service valves.

Brazing and Leak Testing Safety

Safety considerations for brazing and ensuring leak-free connections.

Hot Surface and Chemical Warnings

Cautions about hot surfaces and chemical exposure (Prop 65).

Unit Location Considerations

Unit Dimensions and Weight

Table detailing unit dimensions and weight for various models.

Refrigerant Piping Limits

Maximum Line Length and Vertical Change

Specifies maximum refrigerant line length and vertical rise.

Suggested Locations for Reliability

Airflow and Clearance Guidelines

Optimal placement and clearance requirements for airflow.

Climate Specific Considerations

Cold Climate Installation Notes

Precautions for units installed in cold climates with snow.

Coastal Installation Requirements

Guidelines for installing units near saltwater environments.

Unit Preparation and Setup

Unit Preparation and Pallet Removal

Steps for checking damage and removing the unit from its pallet.

Pad Installation Guidelines

Criteria for installing a proper support pad for the unit.

Refrigerant Line and Valve Specifications

Line and Valve Connection Sizes

Table of rated line sizes and service valve connection sizes.

Factory Charge and Line Length Calculation

Information on factory charge and determining line length.

Refrigerant Line Insulation Requirements

Guidelines for insulating refrigerant lines for performance.

Refrigerant Line Routing and Isolation

Line Set Routing Precautions

Precautions for routing line sets to prevent noise and damage.

Isolation from Structural Elements

Methods for isolating refrigerant lines from joists, rafters, and walls.

Line Set Isolation Details

Isolation in Wall Spaces

Techniques for isolating line sets within wall cavities.

Isolation Through Walls and Ductwork

Methods for sealing and isolating lines through walls and avoiding ductwork.

Refrigerant Line Brazing

Brazing Preparation and Procedure

Step-by-step instructions for preparing and brazing lines.

Refrigerant Line Brazing Continued

Brazing Valve Bodies and Driers

Brazing instructions for service valves and filter driers.

Leak Check and Evacuation

Refrigerant Line Leak Check

Procedure for pressurizing and checking lines for leaks.

Indoor Coil Evacuation

Steps for evacuating the indoor coil and lines to 350 microns.

Service Valve Operation

Opening the Gas Service Valve

Procedure for safely opening the gas service valve.

Opening the Liquid Service Valve

Procedure for safely opening the liquid service valve.

Electrical - Low Voltage

Low Voltage Wire Length Limits

Maximum wire lengths for low voltage connections by gauge.

Low Voltage Hook-up Diagrams

Wiring diagrams for thermostat and air handler connections.

2 Stage HP Thermostat Wiring

Indoor and Outdoor Unit Connections

Diagram showing thermostat, indoor, and outdoor unit connections.

Electrical - High Voltage

High Voltage Power Supply

Guidelines for high voltage power supply and safety precautions.

High Voltage Disconnect Switch

Requirements for installing a high voltage disconnect switch.

System Start Up

Initial Thermostat and Power Settings

Steps for setting the thermostat and applying power.

Crankcase Heater Delay

Procedure for waiting if crankcase heater is used below 70°F.

Subcooling Charging Procedure

Cooling Mode Charging Method

Recommended subcooling method for cooling above 55°F ambient.

Stabilization and Measurement Steps

Ensuring system stabilization for accurate charge measurements.

System Charge Adjustment

Temperature Measurement Guidelines

Guidelines for measuring temperatures for charging.

Subcooling Correction Worksheet

Worksheet for calculating subcooling corrections based on line length.

R-410 A Refrigerant Charging Chart

Liquid Gage Pressure vs. Temperature

Chart to determine liquid gage pressure based on liquid temperature and subcooling.

Subcool Charging Charts

Charts for 2.0-2.5 Ton Models

Subcooling correction tables for 2.0 and 2.5 ton models.

Charts for 3.0 Ton Models

Subcooling correction tables for 3.0 ton models.

Charts for 3.5-4.0 Ton Models

Subcooling correction tables for 3.5 and 4.0 ton models.

Charging the Unit

System Stabilization and Gauge Removal

Steps to stabilize the system and remove gauges.

Proper Gage Pressure Measurement

Measuring liquid line temperature and pressure for proper charge.

Verify Performance with Pressure Curves

Using pressure curves to verify system performance.

Proper Gage Pressure and System Info

Adjusting Refrigerant Level

Procedure for adding or recovering refrigerant for correct charge.

System Information Recording

Recording system pressures and temperatures after charging.

Checkout Procedures

Pre-Operation Checklist

List of common items to confirm before final operation.

Troubleshooting Guide

Compressor Fails to Start

Troubleshooting steps for a compressor that does not start.

Compressor Troubleshooting

Compressor Wont Run (Contactor Closed)

Troubleshooting steps when the compressor won't run but contactor is closed.

Trane Technologies 4TWL5024N1000A Specifications

General IconGeneral
Cooling Capacity24, 000 BTU/h
Voltage208/230 V
RefrigerantR-410A
StagesSingle Stage
PhaseSingle Phase

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