Trane Horizon OAND420A 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 OAND420A Specifications

General

Brand	Trane
Model	Horizon OAND420A
Category	Heat Pump
Language	English

Summary

Introduction

Warnings, Cautions, and Notices

Explains safety advisories like warnings, cautions, and notices.

Model Number Descriptions

Horizon Outdoor Air Unit Model Breakdown

Details the alphanumeric code used to identify unit model specifications and options.

Unit Inspection and Handling

Fiberglass Wool Hazards and First Aid

OAK Unit Clearances

OAK Unit Installation Clearances

Illustrates typical installation clearances for OAK units.

OAK Unit Dimensions

OAK Unit Curb Dimensions

Provides dimensional data for OAK unit curb installation.

OAK Unit Dimensional Data (continued)

OAK Unit Dimensional Data

Shows detailed dimensions for OAK units.

OAN Unit Clearances

OAN Unit Installation Clearances

Illustrates typical installation clearances for OAN units.

OAN Unit Dimensions

OAN Unit Curb Dimensions

Provides dimensional data for OAN unit curb installation.

OAN Unit Dimensional Data (continued)

OAN Unit Dimensional Data

Shows detailed dimensions for OAN units.

Unit Weight and Rigging

Heavy Object Handling and Lifting Safety

Emphasizes safety for lifting heavy objects and proper unit lifting techniques.

Unit Weight Specifications

Unit Weight and Rigging (continued)

Rigging Procedures and Diagrams

Details rigging methods, including spreader bars, test lifts, and positioning.

Installation - General Requirements

Hazardous Service Procedures and Electrical Safety

Emphasizes safety precautions for installation and electrical work.

Installation - Power and Drains

Main Electrical Power Requirements

Outlines requirements for power supply wiring and connections.

Condensate Drain Configuration

Installation - Connections and Wiring

Field Installed Power Wiring and Grounding

Stresses the importance of qualified personnel for wiring and grounding.

Standard Wiring

Field Wiring, Grounding, and Service Protection

Reiterates requirements for field wiring, grounding, and electrical service protection.

Voltage Imbalance and Motor Protection

Explains the impact of voltage imbalance on motor performance and longevity.

Standard Wiring (continued)

Electrical Phasing and Compressor Crankcase Heaters

Pre-Start Check List

Pre-Startup Verification Items

A checklist for contractors to verify installation completeness before unit startup.

System Configuration and Pre-Start

Navigating Unit Display and Configuring Setpoints

Guides users on navigating displays and setting system parameters.

Startup - Gas Heating

Indirect Fired Gas Heating Startup Procedures

Outlines the steps for starting up the indirect fired gas heating system.

Hazardous Gas and Electrical Safety During Startup

Emphasizes safety precautions when dealing with gas and electricity during startup.

Startup - Gas Heating (continued)

Burner Ignition and Failure Analysis

Safety Controls for Gas Furnace Operation

Gas Flow Confirmation and Testing

Maintenance

Monthly Maintenance Checklist

Cooling and Heating Season Maintenance

Maintenance (continued)

Condenser Coil Cleaning Procedures and Safety

Superheat and Refrigeration Circuit Data

Non-Heat Pump Unit Refrigeration Diagrams

Superheat and Refrigeration Circuit Data (continued)

ASHP Unit Refrigeration Diagrams

Alarms and Troubleshooting

Microprocessor Control Diagnostics and System Alarms

Sensor Failure Alarm Display

Alarms and Troubleshooting (continued)

RTRM Failure Modes and VFD Troubleshooting

Horizon™™ Dedicated Outdoor Air Unit Startup Form

Pre Startup Checklist for Installation Verification

A checklist for contractors to verify installation completeness before unit startup.

Horizon™™ Dedicated Outdoor Air Unit Startup Form (continued)

Refrigeration and Heating System Data Recording