Trane Horizon OAND648A 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 OAND648A Specifications

General

Brand	Trane
Model	Horizon OAND648A
Category	Heat Pump
Language	English

Summary

Introduction

Warnings, Cautions, and Notices

Defines advisories like warnings, cautions, and notices for safe operation.

Introduction - Continued

Personal Protective Equipment (PPE) Required

Details mandatory PPE for technicians to prevent injury during work.

Refrigerant Under High Pressure

Warns about system oil and refrigerant under high pressure and recovery procedures.

Hazard of Explosion and Deadly Gases

Highlights risks of explosion and toxic gases from improper refrigerant handling.

Unit Weight and Rigging

Rigging Procedures

Details instructions for safely rigging and lifting the unit.

Installation

Hazardous Service Procedures

Outlines critical safety procedures for installation and service.

Main Electrical Power Requirements

Details requirements for power supply wiring and connections.

Field Installed Power Wiring

Emphasizes qualified personnel for field wiring and grounding safety.

Main Unit Power

Details safety precautions for electrical power connections.

Standard Wiring

Proper Field Wiring and Grounding

Reemphasizes safety for field wiring and grounding.

Voltage Imbalance

Explains the impact of voltage imbalance on motors and how to measure it.

Electrical Phasing (Three-Phase Motors)

Guides on verifying correct electrical phasing for three-phase motors.

Installation - Continued

Control Power Transformer

Details the function and safety precautions for control power transformers.

Controls Using 24 Vac

Provides wiring guidelines for 24 Vac control circuits.

Controls Using DC Analog Input/Output

Provides wiring guidelines for DC analog input/output signals.

Pre-Start Check List

Startup

Indirect Fired Gas Heating Startup

Outlines procedures for starting the indirect fired gas heating system.

High Fire and Low Fire Adjustment

Details how to adjust high and low fire settings for gas burners.

Safety Controls

Maintenance

Monthly Maintenance

Lists key checks to perform during monthly maintenance.

Condenser Coil Cleaning

Provides instructions for cleaning condenser coils safely and effectively.

Superheat and Refrigeration Circuit Data

Non-Heat Pump Units Refrigeration Diagrams

Provides refrigeration diagrams for units without heat pump functionality.

ASHP Units Refrigeration Diagrams

Provides refrigeration diagrams for Air Source Heat Pump (ASHP) units.

Alarms and Troubleshooting

Microprocessor Control

Explains unit diagnostics and system status information from the display.

Variable Speed VFD Troubleshooting

Guides on troubleshooting Variable Speed VFDs using status indications.

Horizon™ Dedicated Outdoor Air Unit Startup Form

Pre Startup Checklist

Lists essential pre-startup checks for the installation contractor.