Trane Horizon OAND480A 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.
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.
Installation, Operation,
and Maintenance
Important: Proper execution 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.
Horizon™ Outdoor Air Unit
Indirect Fired Gas/Electric Heat/Air Source Heat Pump
Models: OAKD, OAKE/F, OAND, OANE/F
November 2019
OAU-SVX01H-EN

Trane Horizon OAND480A Specifications

General

Cooling Capacity	48000 BTU/H
Heating Capacity	48000 BTU/H
Refrigerant Type	R-410A
Phase	1
Voltage	208/230V

Summary

Model Number Descriptions

Horizon Outdoor Air Unit Model Number Breakdown

Details the structure and meaning of each digit in the Horizon Outdoor Air Unit model number.

Unit Clearances, Curb Dimensions, and Dimensional Data

OAK Unit Installation Clearances

Illustrates typical installation clearances required for OAK units for proper operation and service access.

OAN Unit Installation Clearances

Illustrates typical installation clearances for OAN units and those with auxiliary cabinets.

Unit Weight and Rigging

Rigging Safety Precautions

Highlights hazards associated with lifting heavy units and outlines essential safety procedures for rigging.

Unit Weight and Center of Gravity Data

Installation

Hazardous Installation Procedures and Safety

Details critical safety precautions and procedures required for safe installation of the unit.

Main Electrical Power Requirements and Wiring

Specifies requirements for power supply wiring, grounding, and compliance with electrical codes.

Condensate Drain System Configuration

Field Installed Power Wiring and Grounding

Outlines mandatory requirements for field wiring installation and grounding for safety.

Standard Wiring and Connections

Electrical Phasing for Three-Phase Motors

Pre-Start Installation Checklist

A checklist to ensure all installation tasks are completed before scheduling unit startup.

System Configuration and Pre-Start Procedures

Describes how to navigate the unit display and configure system setpoints before startup.

Startup

Indirect Fired Gas Heating Startup Procedures

Details the step-by-step process for safely starting up the indirect fired gas heating system.

Burner Ignition Sequence and Testing

Explains the burner startup sequence, ignition trials, and failure modes for safe operation.

High and Low Fire Gas Burner Adjustment

Main Burner Flame Characteristics

Maintenance

Monthly Maintenance Checks

Condenser Coil Cleaning Procedures

Provides instructions for cleaning condenser coils, including safety warnings for chemicals and pressures.

Performance Data

Superheat and Refrigeration Circuit Data

Provides refrigeration diagrams and superheat data for non-heat pump and ASHP units.

Alarms and Troubleshooting

Microprocessor Control and System Status

Explains unit diagnostics, system alarms, and how to interpret status information.

Sensor Failure Alarm Display and Troubleshooting

TOAU UC600 Alarm Codes and Troubleshooting

Variable Speed VFD Troubleshooting

Appendix

Horizon Dedicated Outdoor Air Unit Startup Form

A checklist and form for recording data during the unit startup process.