Table Of Contents - Trane Horizon OAKD Installation, Operation And Maintenance Manual

Table of Contents

Model Number Descriptions
Horizon Outdoor Air Unit
General Information
Overview of Manual . . . . . . . . . . . . . . . . . 13
Model Number Description . . . . . . . . . . . 13
Unit Nameplate . . . . . . . . . . . . . . . . . . . . 13
Compressor Nameplate . . . . . . . . . . . . . . 13
Unit Description . . . . . . . . . . . . . . . . . . . . 13
Indoor Fan Failure Input . . . . . . . . . . . . . 13
Low Pressure Control ReliaTel Control . 13
Refrigerant Circuits . . . . . . . . . . . . . . . . . 13
High Pressure Control ReliaTel Control . 13
Space Temperature / RH Sensor (Optional)
14
High Temperature Sensor . . . . . . . . . . . . 14
Outdoor Air Temperature and Relative Hu-
midity Sensor . . . . . . . . . . . . . . . . . . . . . . 14
Hot Gas Reheat . . . . . . . . . . . . . . . . . . . . . 14
100 Percent Outdoor Air Hood with Damper
and Filters . . . . . . . . . . . . . . . . . . . . . . . . . 14
Modulating Indirect Fired Gas Burner . . 14
Through the Base Electrical with Disconnect
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Through the Base Gas Piping . . . . . . . . . 14
Hinged Access Doors . . . . . . . . . . . . . . . . 14
Modulating Electric Heat . . . . . . . . . . . . . 14
Supply and Exhaust Piezo Fan Rings . . . 14
ERV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Hot Water Coils . . . . . . . . . . . . . . . . . . . . . 15
Suction Pressure Monitoring . . . . . . . . . 15
Head Pressure Control . . . . . . . . . . . . . . . 15
Unit Inspection
. . . . . . . . . . . . . . . . . . . . . . . 15
First Aid Measures . . . . . . . . . . . . . . . . . . 15
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Unit Clearances . . . . . . . . . . . . . . . . . . . . 16
Unit Clearances, Curb Dimensions, and Dimen-
sional Data
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
OAK Units . . . . . . . . . . . . . . . . . . . . . . . . . 17
OAN Units . . . . . . . . . . . . . . . . . . . . . . . . . 21
Unit Weight and Rigging
OAU-SVX01K-EN
. . . . . . . . . . . . . 10
. . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . 25
Unit Weight . . . . . . . . . . . . . . . . . . . . . . . . .25
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Units with Indirect Fired Gas Heat . . . . . .28
General Unit Requirements . . . . . . . . . . . .29
Main Electrical Power Requirements . . . .29
Condensate Drain Configuration . . . . . . .29
Chilled Water Connection Size and Location
30
Filter Installation . . . . . . . . . . . . . . . . . . . . .30
Field Installed Power Wiring . . . . . . . . . . .30
Main Unit Power . . . . . . . . . . . . . . . . . . . . . .31
Standard Wiring . . . . . . . . . . . . . . . . . . . . .32
Voltage Imbalance . . . . . . . . . . . . . . . . . . .32
Electrical Phasing (Three-Phase Motors) .33
Compressor Crankcase Heaters . . . . . . . .33
Main Unit Display and ReliaTel Controls .34
Field-Installed Control Wiring . . . . . . . . . .34
Control Power Transformer . . . . . . . . . . .34
Controls Using 24 Vac . . . . . . . . . . . . . . . .35
Controls Using DC Analog Input/Output
(Standard Low Voltage Multiconductor Wire)
35
DC Conductors . . . . . . . . . . . . . . . . . . . . . . . .36
Factory-Provided Sensors
Pre-Start Check List
. . . . . . . . . . . . . . . . . . . . . .37
System Configuration and Pre-Start
Pre-Start Up . . . . . . . . . . . . . . . . . . . . . . . . . .48
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Cooling Start Up . . . . . . . . . . . . . . . . . . . . .48
Startup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Indirect Fired Gas Heating Startup
Startup Procedure . . . . . . . . . . . . . . . . . . .51
Safety Controls . . . . . . . . . . . . . . . . . . . . . .54
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Monthly Maintenance
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Supply/Return Air Smoke Detector Mainte-
. . . . . . . . . . . . . .36
. . . . . . .38
. . . . . . .50
. . . . . . . . . . . . . . . . . .55
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