Trane Horizon OAND360A - Page 72

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Appendix

72 OAU-SVX01H-EN

Figure 53. VELCON-0350 installation instructions for modulating OA/RA dampers w/economizer and an exhaust fan

Main Page

Table of Contents6
Model Number Descriptions8
Horizon Outdoor Air Unit8
General Information11
Overview of Manual11
Model Number Description11
Unit Nameplate11
Compressor Nameplate11
Unit Description11
Indoor Fan Failure Input11
Low Pressure Control Reliatel Control11
Refrigerant Circuits11
High Pressure Control Reliatel Control11
Space Temperature / RH Sensor (Optional)12
High Temperature Sensor12
Outdoor Air Temperature and Relative Humidity Sensor12
Hot Gas Reheat12
Percent Outdoor Air Hood with Damper and Filters12
Modulating Indirect Fired Gas Burner12
Through the Base Electrical with Disconnect Switch12
Through the Base Gas Piping12
Hinged Access Doors12
Modulating Electric Heat12
Unit Inspection13
First Aid Measures13
Storage13
Unit Clearances13
Unit Clearances, Curb Dimensions, and Dimensional Data14
OAK Units14
OAN Units18
Unit Weight and Rigging22
Unit Weight22
Rigging24
Installation25
Ductwork25
General Unit Requirements25
Main Electrical Power Requirements26
Condensate Drain Configuration26
Chilled Water Connection Size and Location27
Filter Installation27
Field Installed Power Wiring27
Main Unit Power28
Standard Wiring29
Voltage Imbalance29
Electrical Phasing (Three-Phase Motors)30
Compressor Crankcase Heaters30
Main Unit Display and Reliatel Controls31
Field-Installed Control Wiring31
Control Power Transformer31
Controls Using 24 Vac32
Controls Using DC Analog Input/Output (Standard Low Voltage Multiconductor Wire)32
DC Conductors33
Factory-Provided Sensors33
Pre-Start Check List34
System Configuration and Pre-Start35
Startup38
Indirect Fired Gas Heating Startup38
Startup Procedure39
Safety Controls42
Maintenance43
Monthly Maintenance43
Filters43
Supply/Return Air Smoke Detector Maintenance43
Cooling Season43
Heating Season43
Condenser Coil Cleaning44
Final Process45
Performance Data47
Superheat and Refrigeration Circuit Data57
Non-Heat Pump Units57
ASHP Units61
Alarms and Troubleshooting65
Microprocessor Control65
System Alarms65
Sensor Failure Alarm Display65
RTRM Failure Modes67
Variable Speed VFD Troubleshooting67
Appendix68
OAU Filter Guide68
Field Installation of Factory-Provided Sensors69
Horizon™ Dedicated Outdoor Air Unit Startup Form73

Trane Horizon OAND360A - Page 72

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