Table Of Contents - Trane Horizon OABE/F Installation, Operation And Maintenance Manual

Table of Contents

Model Number Descriptions
Horizon Outdoor Air Unit Water Source Heat
Pump
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Model: OABE, OAGE . . . . . . . . . . . . . . . . . 8
Models: OADE, OAKE, OANE . . . . . . . . . 10
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 Gas-Fired Burner . . 14
Through the Base Electrical with Disconnect
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Through the Base Gas Piping . . . . . . . . . 14
Hinged Access Doors . . . . . . . . . . . . . . . . 14
Modulating Electric Heat . . . . . . . . . . . . . 14
Unit Inspection
. . . . . . . . . . . . . . . . . . . . . . . 15
First Aid Measures . . . . . . . . . . . . . . . . . . 15
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Unit Clearances . . . . . . . . . . . . . . . . . . . . 15
Unit Clearances, Curb Dimensions, and Dimen-
sional Data
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Outdoor WSHP Units
OABE Units . . . . . . . . . . . . . . . . . . . . . . . . 16
Indirect-Fired OAGE Units . . . . . . . . . . . . 18
OAKE Units . . . . . . . . . . . . . . . . . . . . . . . . 21
OANE Units . . . . . . . . . . . . . . . . . . . . . . . . 23
6
. . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . 16
Indoor WSHP Units
OABE Units . . . . . . . . . . . . . . . . . . . . . . . . .25
OAGE Units . . . . . . . . . . . . . . . . . . . . . . . . .27
OAKE Units . . . . . . . . . . . . . . . . . . . . . . . . .28
OANE Units . . . . . . . . . . . . . . . . . . . . . . . . .30
Unit Weight and Rigging
Unit Weight . . . . . . . . . . . . . . . . . . . . . . . . .33
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . .38
General Unit Requirements . . . . . . . . . . . .38
Horizon Water Source Heat Pump Field Con-
nection Instructions . . . . . . . . . . . . . . . . . .39
OAB IF Heater Air Inlet Hood and Flue Assem-
bly Instructions for Outdoor Installations 40
Venting of Furnace for Indoor Installations .
42
Main Electrical Power Requirements . . . .45
Condensate Drain Configuration . . . . . . .45
Chilled Water Connection Size and Location
45
Filter Installation . . . . . . . . . . . . . . . . . . . . .46
Opening the Collapsed Exhaust Damper
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Field Installed Power Wiring . . . . . . . . . . .48
Main Unit Power
. . . . . . . . . . . . . . . . . . . . . .50
Standard Wiring . . . . . . . . . . . . . . . . . . . . .50
Voltage Imbalance . . . . . . . . . . . . . . . . . . .51
Electrical Phasing (Three-Phase Motors) .51
Compressor Crankcase Heaters . . . . . . . .52
Main Unit Display and ReliaTel Controls .52
Field-Installed Control Wiring . . . . . . . . . .52
Control Power Transformer . . . . . . . . . . .53
Controls Using 24 Vac . . . . . . . . . . . . . . . .53
Controls Using DC Analog Input/Output
(Standard Low Voltage Multiconductor Wire)
53
DC Conductors . . . . . . . . . . . . . . . . . . . . . . . .54
Factory-Provided Sensors
Pre-Start Check List
. . . . . . . . . . . . . . . . . . . . . .56
. . . . . . . . . . . . . . . . . . . .25
. . . . . . . . . . . . . . . . .33
. . . . . . . . . . . . . .54
OAU-SVX004D-EN