Trane Horizon OADG Series - User Manual

Horizon™ Outdoor Air Unit
Horizon UC600 Controls Program Version 12.0
Installation, Operation, and Maintenance
February 2023
OAU-SVX007A-EN
Important: Proper completion of the tasks outlined in this Installation, Operation, and Maintenance manual require and assume
the technician has been certified as a start up technician for the Horizon Outdoor Air unit. This includes working
knowledge of the Tracer TU program.
Models
OABD, OABE, OABF, OADG, OAGD, OAGE, OAGF, OAKD, OAKE, OAKF, OAND, OANE, OANF,
OANG
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.
AVERTISSEMENT DE SÉCURITÉ
L’installation et l’entretien de cet équipement doivent être assurés exclusivement par du personnel qualifié.
L’installation, la mise en service et l’entretien d’équipements de chauffage, de ventilation et de climatisation (CVC)
présentent un danger et requièrent des connaissances et une formation spécifiques. Une installation, un réglage ou une
modification inappropriés d’un équipement par une personne non qualifiée peut provoquer des blessures graves, voire
la mort. Lors de toute intervention sur l’équipement, respectez les consignes de sécurité figurant dans la
documentation, ainsi que sur les pictogrammes, autocollants et étiquettes apposés sur l’équipement.

Trane Horizon OADG Series Specifications

General

Brand	Trane
Model	Horizon OADG Series
Category	Heat Pump
Language	English

Summary

Introduction

Warnings, Cautions, and Notices

Defines the types of advisories used throughout the manual for safety.

Environmental and Refrigerant Practices

Discusses environmental concerns and responsible refrigerant handling practices.

Field Wiring and Grounding Requirements

Critical safety requirements for proper field wiring and grounding installation.

Personal Protective Equipment (PPE)

Details required PPE for technicians to prevent injury from hazards.

Model Number Descriptions

Horizon Outdoor Air Unit Nomenclature

Detailed breakdown of model number digits and their meanings for Horizon Outdoor Air Units.

General Information

Unit Identification and Components

Explains unit identification via nameplate/model and describes key components and controls.

Sensor and Control System Details

Details sensors and controls including ReliaTel, pressure, and temperature sensing for unit operation.

Unit Inspection

Pre-Installation Checks

Checklist for verifying unit condition, data, and installation readiness upon arrival.

First Aid and Storage Guidelines

Provides first aid measures and guidelines for proper unit storage before installation.

Unit Clearances and Dimensions

OAK Unit Clearances and Dimensions

Specifies installation clearances, curb dimensions, and unit measurements for OAK units.

OAN Unit Clearances and Dimensions

Specifies installation clearances, curb dimensions, and unit measurements for OAN units.

Unit Weight and Rigging

Safety for Heavy Objects and Lifting

Details safety precautions for handling heavy units and proper rigging procedures for safe lifting.

Unit Weight and Rigging Data

Provides tables of unit weights and diagrams for rigging and lifting procedures.

Installation Procedures

Ductwork and Condensate Drain Installation

Provides guidelines for ductwork installation and proper condensate drain configuration.

Field Wiring and Connections

Covers safety and compliance for field power wiring, water, and control connections.

Pre-Start Up and Cooling Start-Up

Pre-Start Up Checklist

A checklist of essential steps to complete before initiating the unit's start-up sequence.

Cooling Start-Up Procedures

Step-by-step instructions for performing the cooling start-up process, including checks and measurements.

Start-Up Procedures

Indirect Fired Gas Heating Start Up

Outlines the procedures for safely starting up the indirect fired gas heating system, including checks.

Burner Ignition and Safety Controls

Explains burner ignition sequence, safety controls, and pressure checks.

Maintenance

Routine Monthly Maintenance

Lists routine monthly maintenance checks for filters, coils, fans, and electrical connections.

Condenser Coil Cleaning Procedures

Provides instructions for cleaning condenser coils using specific chemicals and safety measures.

Alarms and Troubleshooting

Microprocessor and RTRM Troubleshooting

Guides troubleshooting for microprocessor control, RTRM failures, and system alarms.

VFD and Compressor Controller Diagnostics

Explains VFD programming parameters and digital scroll compressor controller flash codes for diagnostics.

Appendix

OAU Filter Guide and Sensor Installation

Provides filter specifications and installation instructions for factory-provided sensors.