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Trane TR-OHS RCU Series User Manual

Trane TR-OHS RCU Series
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4 SS-SVX004C-EN
Table of Contents
Model Number Descriptions . . . . . . . . . . . . . . 5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Product Description . . . . . . . . . . . . . . . . . . . . 6
Capabilities and Features . . . . . . . . . . . . . 6
General Design . . . . . . . . . . . . . . . . . . . . . . 7
Safety Features . . . . . . . . . . . . . . . . . . . . . . 8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Receiving the Equipment . . . . . . . . . . . . . . . 9
Site Preparation . . . . . . . . . . . . . . . . . . . . . . . 9
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting/Placement . . . . . . . . . . . . . . . . . . . 9
Mounting/Placing the RCU-O . . . . . . . . . . 9
Mounting/Placing the RCU-I . . . . . . . . . . 10
Piping Connections . . . . . . . . . . . . . . . . . . . 10
Refrigerant Pipe Sizing . . . . . . . . . . . . . . 11
Utility Connections . . . . . . . . . . . . . . . . . . . 13
Main Power and Control Wiring . . . . . . . 13
Electric Box Layout . . . . . . . . . . . . . . . . . . 14
System Charging . . . . . . . . . . . . . . . . . . . . . 15
DX Charging Requirements . . . . . . . . . . . 15
R407C Refrigerant . . . . . . . . . . . . . . . . . . 15
Preparing System for Charging . . . . . . . 15
Refrigerant Charging Procedures . . . . . . 16
Refrigerant Characteristics . . . . . . . . . . . 19
Settings and Adjustments . . . . . . . . . . . . . 20
High/Low Pressure Limit Switches . . . . . 20
Head Pressure Controls . . . . . . . . . . . . . . 20
Hot Gas Bypass . . . . . . . . . . . . . . . . . . . . 20
Commissioning and Decommissioning . . . 21
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Step by Step Start-Up Instructions . . . . . . 21
Operational Description . . . . . . . . . . . . . . . 21
Decommissioning the Unit . . . . . . . . . . . . . 21
Recovering Refrigerant . . . . . . . . . . . . . . 22
Labeling Decommissioned Equipment . . 22
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
General . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Compressor . . . . . . . . . . . . . . . . . . . . . . . .23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .24
Field Service . . . . . . . . . . . . . . . . . . . . . . . . . .26
Leak Detection . . . . . . . . . . . . . . . . . . . . . .26
Leak Repair . . . . . . . . . . . . . . . . . . . . . . . . .26
Refrigerant Piping . . . . . . . . . . . . . . . . . . .26
General Common Repairs/Component Re-
placement . . . . . . . . . . . . . . . . . . . . . . . . . .26
Product Support . . . . . . . . . . . . . . . . . . . . . . .29
Factory Authorized Start Up/Warranty In-
spection . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Technical Support . . . . . . . . . . . . . . . . . . .29
Obtaining Warranty Parts . . . . . . . . . . . . .29
Obtaining Spare/Replacement Parts . . . .29
Recommended Maintenance . . . . . . . . . . . .30
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Semi-Annual . . . . . . . . . . . . . . . . . . . . . . . .30
Annual . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

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Trane TR-OHS RCU Series Specifications

General IconGeneral
BrandTrane
ModelTR-OHS RCU Series
CategoryAir Conditioner Accessories
LanguageEnglish

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