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Trane Precedent THJ180 User Manual

Trane Precedent THJ180
60 pages
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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
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Trane Precedent THJ180 Specifications

General IconGeneral
ModelTHJ180
CategoryAir Conditioner
RefrigerantR-410A
Phase3
Compressor TypeScroll
Voltage208-230V

Summary

Introduction

Warnings, Cautions, and Notices

Defines safety advisories (Warning, Caution, Notice) crucial for personal safety and proper operation.

Personal Protective Equipment (PPE) Required!

Mandates wearing appropriate PPE to protect against electrical, mechanical, and chemical hazards during operation.

Follow EHS Policies!

Stresses adherence to company Environmental, Health, and Safety (EHS) policies for safe work practices.

General Information

Zone Sensors

Introduces various zone sensors available for controlling the unit's temperature and system settings.

Pre-Installation

Fiberglass Wool!

Warns about potential health risks (cancer, respiratory irritation) from fiberglass wool exposure and mandates PPE.

Dimensions and Weights

Dimensional Data

Presents detailed dimensional drawings and measurements for 6 to 10 tons high efficiency units.

Lifting and Rigging

Installation

Heavy Object!

Reinforces safe lifting practices, ensuring equipment is rated and cables support the unit's full weight.

Roof Damage!

Warns about potential roof damage from oil and refrigerant exposure and advises protection measures.

Combustible Materials!

Warns of fire hazards from improper clearance between units/ductwork and combustible materials, stressing safe material use.

Rigging

Provides guidance on rigging procedures, referencing dimensions and weights for proper lift planning and execution.

Improper Unit Lift!

Reiterates the importance of a level lift and testing the unit's center of gravity to prevent dropping and injury.

Main Electrical Power Requirements

Field Installed Power Wiring

Provides guidelines for field-installed power wiring, ensuring compatibility with unit nameplate ratings and using copper conductors.

Main Unit Power

Covers main unit power connection, including field wiring, grounding, and optional through-the-base electrical options.

Proper Field Wiring and Grounding Required!

Reiterates requirements for qualified personnel, NEC compliance, and proper grounding to prevent electrical hazards.

Hazardous Voltage!

Warns about hazardous voltage and the need for lockout/tagout procedures before any electrical servicing.

Standard Wiring

Details standard wiring connections, including service entrance location and grounding requirements.

Optional TBUE Wiring (Through-the-Base Electrical Option)

Explains wiring for the optional through-the-base electrical option, including disconnect switch or circuit breaker connections.

Field-Installed Control Wiring

Provides guidelines for field-installed control wiring, emphasizing qualified personnel and NEC compliance.

Pre-Start

Hazardous Voltage w/Capacitors!

Warns of severe injury from capacitors and mandates power disconnection, discharge, and lockout/tagout procedures.

Rotating Components!

Warns of injury from rotating components and emphasizes working with qualified personnel when components are live.

Voltage Imbalance

Explains the critical requirement for balanced three-phase power to prevent motor overheating and failure.

Electrical Phasing (Three Phase Motors)

Describes proper electrical supply phasing for three-phase motors and how to verify correct rotation before starting.

Live Electrical Components!

Warns about the dangers of live electrical components and stresses the need for qualified personnel and extreme care.

Unit Start-Up

Compressor Start-Up

Guides on attaching service gauges, observing operating pressures, and checking system superheat for compressor startup.

Final System Setup

Outlines final checks after all startup procedures, including programming, verifying settings, and securing panels.

Safety Alert!

Reminds users to follow all instructions in the manual, service alerts, and design specifications for safety.

Maintenance

Hazardous Service Procedures!

Warns technicians to follow all safety precautions, disconnect power, and use qualified personnel for service tasks.

Monthly Maintenance

Outlines essential monthly maintenance checks, including filter inspection, electrical connections, and unit general inspection.

Hazardous Chemicals!

Warns about hazards associated with coil cleaning agents and mandates the use of PPE and adherence to safety data sheets.

Troubleshooting

Wiring Diagrams

Piping Diagrams

Limited Warranty

Electric Air Conditioner

Details the warranty coverage, duration, limitations, and exclusions for Trane Electric Air Conditioners.

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