User Manuals: Trane Horizon OAGD144 Series Air Unit

Manuals and User Guides for Trane Horizon OAGD144 Series Air Unit. We have 1 Trane Horizon OAGD144 Series Air Unit manual available for free PDF download: Installation, Operation And Maintenance Manual

Trane Horizon OAGD144 Series Installation, Operation And Maintenance Manual

Trane Horizon OAGD144 Series Installation, Operation And Maintenance Manual (60 pages)

Outdoor Air Unit, Direct Gas-Fired

Brand: Trane | Category: Air Conditioner | Size: 7 MB

Table of Contents

Important Responsible Refrigerant Practices
2
Table of Contents
6
Model Number Descriptions

8
- Horizon Outdoor Air Unit
  8
General Information

11
- Overview of Manual
  11
- Model Number Description
  11
- Unit Nameplate
  11
- Compressor Nameplate
  11
- Unit Description
  11
- Indoor Fan Failure Input
  11
- Low Pressure Control Reliatel Control
  11
- Refrigerant Circuits
  11
- High Pressure Control Reliatel Control
  11
- Space Temperature / RH Sensor (Optional)
  12
- High Temperature Sensor
  12
- Outdoor Air Temperature and Relative Humidity Sensor
  12
- Control Input (Occupied / Unoccupied)
  12
- Hot Gas Reheat
  12
- Percent Outdoor Air Hood with Damper and Filters
  12
- Through the Base Electrical with Disconnect Switch
  12
- Hinged Access Doors
  12
- Unit Inspection
  12
  - First Aid Measures
    13
  - Storage
    13
  - Unit Clearances
    13
Unit Clearances, Curb Dimensions, and Dimensional Data

14
- Direct-Fired OAB Units
  14
- Direct-Fired OAG Units
  15
Unit Weight and Rigging

16
- Unit Weight
  16
- Rigging
  17
Installation

18
- Ductwork
  18
- General Unit Requirements
  18
- Main Electrical Power Requirements
  19
- Condensate Drain Configuration
  19
- Filter Installation
  19
- Field Installed Power Wiring
  20
- Main Unit Power
  21
- DC Conductors
  25
System Configuration and Pre-Start

26
Startup

29
- Direct Heating Startup
  29
- Direct Gas-Fired Heating Start-Up Procedure
  30
  - Initiate
    32
  - Standby
    33
  - Normal Start-Up Pre-Purge
    33
  - Ignition Trials
    33
  - Run
    33
  - Settings and Adjustments
    34
  - Operation of the Direct Spark Ignition Control Gas Valve
    34
Maintenance

36
- Monthly Maintenance
  36
  - Filters
    36
  - Supply/Return Air Smoke Detector Maintenance
    36
  - Cooling Season
    36
  - Heating Season
    36
  - Condenser Coil Cleaning
    36
- Direct-Fired Unit Maintenance Schedule
  38
  - Lubrication Requirements
    39
  - Pillow Block Bearings
    40
  - Frequency of Lubrication
    40
  - Dampers
    40
  - Air Filters
    40
  - Belt Tensions and Adjustments
    41
  - Suggested Belt Tension Method
    41
  - Gaskets
    41
  - Annual Maintenance
    41
  - Heater Maintenance
    41
  - Inspection and Maintenance of Gas Ports
    43
- Final Process
  43
Performance Data

45
- Superheat and Refrigeration Circuit Data
  49
Alarms and Troubleshooting

51
- Microprocessor Control
  51
- System Alarms
  51
- Sensor Failure Alarm Display
  51
- RTRM Failure Modes
  53
- Airflow Troubleshooting
  53
- Direct-Fired OAB and OAG Unit Flame Relays £ 400 Mbh
  54
- Direct-Fired OAG Unit Flame Relays
  55
- 400 Mbh
  55
Appendix

59
- OAU Filter Guide
  59

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