Table Of Contents - Trane SEHJ090-162 Installation, Operation And Maintenance Manual

Table of Contents

Overview of Manual . . . . . . . . . . . . . . . . . . 3
Model Number Descriptions
Unit Inspection
. . . . . . . . . . . . . . . . . . . . . . . . . . 9
As soon as the unit arrives at the job site 9
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Unit Clearances . . . . . . . . . . . . . . . . . . . . . 9
Unit Dimensions and Weight Information 9
General Information
Unit Nameplate . . . . . . . . . . . . . . . . . . . . . . 10
Commonly Used Acronyms . . . . . . . . . . . . 10
Unit Description . . . . . . . . . . . . . . . . . . . . . . 10
Constant Volume (CV) and Variable Air
Volume (VAV) Units . . . . . . . . . . . . . . . . . . . 13
Constant Volume (CV) Units . . . . . . . . . . . 16
Variable Air Volume (VAV) Units . . . . . . . . 17
Single Zone Variable Air Volume (SZVAV)
Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unit Clearances
. . . . . . . . . . . . . . . . . . . . . . . . . 21
Dimensional Data
. . . . . . . . . . . . . . . . . . . . . . . 23
Weights
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Roof Curb and Ductwork . . . . . . . . . . . . . 45
Field Converting Horizontal Ductwork (Sup-
ply or Return) from Right to the Left Side 47
Unit Rigging and Placement . . . . . . . . . . . 49
Air-Cooled and Evaporative Condensers-
Three-Piece Unit Fit Up . . . . . . . . . . . . . . 52
Air-Cooled and Evaporative Condensers-
Two-Piece Unit Fit Up . . . . . . . . . . . . . . . 56
Complete Tubing and Wiring Connections as
follows: . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Air-Cooled Tubing Connection . . . . . . . . 59
Evaporative Condenser Tubing
Connection . . . . . . . . . . . . . . . . . . . . . . . . 60
Electric Heat Wiring Connection . . . . . . . 61
Power and Control Wiring Connections . 61
General Unit Requirements . . . . . . . . . . . 62
Rigging the Unit . . . . . . . . . . . . . . . . . . . . 63
Main Electrical Power Requirements . . . 63
Field Installed Control Wiring . . . . . . . . . 63
4
. . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . 10
Requirements for Electric Heat Units . . . .63
Requirement for Gas Heat . . . . . . . . . . . . .63
Requirements for Hot Water Heat . . . . . .63
Requirements for Steam Heat . . . . . . . . . .63
O/A Pressure Sensor and Tubing
Installation . . . . . . . . . . . . . . . . . . . . . . . . .63
Condensate Drain Connections . . . . . . . .63
Units with Gas Furnace . . . . . . . . . . . . . . .64
Removing Compressor Assembly Shipping
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . .64
Removing Supply and Exhaust Fan Shipping
Channels . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Spring Isolators . . . . . . . . . . . . . . . . . . . . .64
Remove Evaporative Condenser Fan
Shipping Brackets . . . . . . . . . . . . . . . . . . .64
O/A Sensor and Tubing Installation . . . . .66
Units with Statitrac . . . . . . . . . . . . . . . . . .66
Evaporative-Cooled Condenser Make-up
Water and Drain Line Installation . . . . . . .67
Gas Heat Units . . . . . . . . . . . . . . . . . . . . . .68
Disconnect Switch w/External Handle . . .76
Electric Heat Units . . . . . . . . . . . . . . . . . . .76
Main Unit Power Wiring . . . . . . . . . . . . . .77
Power Wire Sizing and Protection Devices 79
Field Installed Control Wiring . . . . . . . . . .81
Controls using 24 VAC . . . . . . . . . . . . . . . .81
Controls using DC Analog Input/Outputs .81
Constant Volume System Controls . . . . . .82
Variable Air Volume System Controls . . .82
Constant Volume or Variable Air Volume
System Controls . . . . . . . . . . . . . . . . . . . . .82
Single Zone Variable Air Volume & Rapid
Restart System Control . . . . . . . . . . . . . . .83
Emergency Override . . . . . . . . . . . . . . . . .83
Ventilation Override Module (VOM) . . . . .84
Temperature vs. Resistance Coefficient . .85
Installation Checklist
General Checklist (applies to all units) . . .93
Unit Rigging and Placement (Two-Piece-ad-
dition to General Checklist) . . . . . . . . . . . .93
Unit Rigging and Placement (Three-piece
. . . . . . . . . . . . . . . . . . . . .93
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