Trane Precedent THJ090 User Manual

SAFETY WARNING
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.
December 2022
RT-SVX074A-EN
Installation, Operation, and Maintenance
Packaged Rooftop Air
Conditioners
Precedent™ Cooling and Electric
Heat
High Efficiency
6 to 25 Tons – 60 Hz
Model Numbers: THJ072A - THJ300A

Trane Precedent THJ090 Specifications

General

Model	THJ090
Category	Air Conditioner
Compressor Type	Scroll
Refrigerant	R-410A
Phase	3
Voltage	208/230V
Dimensions	Varies by specific model configuration. Consult product data.
Cooling Capacity BTU/h	90, 000 BTU/h
Sound Level (Outdoor Unit)	Varies by specific model configuration. Consult product data.

Summary

Introduction

Electrical Safety Precautions

Warnings regarding field wiring, grounding, and Personal Protective Equipment (PPE).

Pre-Installation Guidelines

Fiberglass Wool Handling

Electrical Hazard Awareness

Warning about electrical hazards and procedures before installation.

Dimensions and Weights

Unit Dimensional Data

Installation Clearances

Illustrates minimum operating and service clearances for unit installation.

Unit Weight Information

Details weight data for unit models and factory installed options.

Lifting and Rigging Procedures

Instructions for safely lifting and rigging the unit.

Installation Procedures

Lifting and Roof Safety Warnings

Safety warnings for unit lifting and roof structural integrity.

Ductwork and Curb Installation

Electrical Power and Wiring

Requirements for main power, electric heat, and low voltage wiring.

Pre-Start Procedures

Electrical Safety and Phasing

Warnings and checks for voltage, capacitors, and motor phasing.

Voltage Imbalance Analysis

Methods for measuring and correcting three-phase voltage imbalance.

Unit Start-Up

Compressor and Reheat Start-Up

Final System Setup Checks

Maintenance Schedule

Monthly and Seasonal Checks

Coil Cleaning and MCHE Specifics

Troubleshooting Guide

Troubleshooting Reference

Wiring Diagrams

Wiring Diagram Schematics

Piping Diagrams

Refrigerant Piping Layouts

Limited Warranty Information

THJ Precedent Model Coverage