Trane Horizon OAKE144A 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 OAKE144A Specifications

General

Model Number	OAKE144A
Category	Heat Pump
Phase	3
Cooling Capacity	144000 BTU
Voltage	208/230

Summary

Installation, Operation, and Maintenance

Horizon™ Outdoor Air Unit

Identifies the specific product model and its purpose.

Personal Protective Equipment (PPE) Required

Details mandatory PPE for installation and servicing tasks.

Refrigerant High Pressure and Explosion Hazards

Warns about hazards of high-pressure refrigerant, explosion, and deadly gases.

Gas Smell Procedure and Hazardous Service Practices

Provides steps for gas detection and general service safety.

General Information

Installation Provisions

Details electrical, gas piping, and access door provisions.

Unit Inspection and Handling Precautions

Guides unit inspection, first aid, and storage.

Unit Clearances

Refers to figures for minimum operating and service clearances.

Unit Clearances, Curb Dimensions, and Dimensional Data

OAK Units: Clearances and Curb Dimensions

Illustrates OAK unit clearances and curb data.

OAK Units: Curb Dimensions

Provides curb data for OAK 12-30 tons.

OAK Units: Dimensional Data

OAK Units: Dimensional Data with Auxiliary Cabinet

OAN Units: Clearances and Curb Dimensions

OAN Units: Curb Dimensions and Dimensional Data

OAN Units: Horizontal Dimensional Data

OAN Units: Horizontal Dimensional Data with ERV

Unit Weight and Rigging

Lifting Hazards and Unit Weights

Warns about lifting hazards and provides unit weights.

Rigging Procedures

Details safe rigging practices and diagrams.

Installation

Hazardous Service Procedures and Ductwork

Stresses safety and covers ductwork installation.

General Unit Requirements

Electrical Power and Condensate Drain Configuration

Chilled Water Connections, Filters, and Wiring

Power Entrance and Main Unit Power Safety

Illustrates power entrance and warns about main unit power.

Standard Wiring and Voltage Imbalance Hazards

Covers standard wiring and voltage imbalance safety.

Electrical Phasing and Compressor Crankcase Heaters

Control Systems and Power Transformers

24 Vac and DC Analog Control Wiring

DC Conductors and Factory-Provided Sensors

System Configuration and Pre-Start

Pre-Start Check List

A checklist to be completed before unit startup.

Navigating Unit Displays and Configuration

Startup

Indirect Fired Gas Heating Startup Procedures

Details startup procedures for gas heating systems.

Gas Leak Testing and Explosion Hazards

Warns about gas leak testing procedures and explosion risks.

Startup Procedure: Gas Pressure and Fan Checks

Details steps for checking gas pressure and fan operation.

Hazardous Voltage and Gas Confirmation

Warns about hazards during gas flow confirmation.

Burner Ignition, Flame Adjustment, and Failure Modes

Burner Flame Appearance and Sensor Checks

Furnace Safety Controls

Maintenance

Monthly Maintenance Checks

Cooling and Heating Season Checks

Condenser Coil Cleaning Procedures

Provides detailed instructions for cleaning MCHE and RTPF coils.

Alarms and Troubleshooting

Microprocessor Control and System Alarms

Explains unit diagnostics, alarms, and sensor failures.

Sensor Failure Alarm Display

Describes how to view sensor status and alarms.

TOAU UC600 Alarms and Troubleshooting

Lists UC600 alarms and troubleshooting steps.

UC600 Troubleshooting and VFD Issues

Covers UC600 troubleshooting and VFD status indications.

Horizon™ Dedicated Outdoor Air Unit Startup Form

Pre Startup Checklist and Program Control

Covers pre-startup checks, program control, and compressor data.

Refrigeration and Heating System Data

System Fluid Checks and Heat Settings