general information
About This Manual Literature Change History
Use this manual for commercial self- contained models SCWH and SCRH. This is the original issue of this manual. It provides specific installation, owner maintenance, and diagnostic troubleshooting instructions for “AO” and later design sequences.
Note: The procedures discussed in this manual should only be performed by qualified, experienced HVAC technicians.
Note: This document is customer property and must be retained for use by maintenance personnel.
It is important to perform periodic maintenance to help ensure trouble free operation. Should equipment failure occur, contact a qualified Trane service organization for an experienced HVAC technician to properly diagnose and repair this equipment.
Warnings and Cautions
Warnings and cautions appear at appropriate sections throughout this manual. Read these carefully.
WARNING
Indicates a potentially hazardous situation, which could result in death or serious injury if not avoided.
CAUTION
Indicates a potentially hazardous situation, which may result in minor or moderate injury if not avoided. Also, it may alert against unsafe practices.
CAUTION
Indicates a situation that may result in equipment or
Example Warnings and Cautions
WARNING
Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing.Follow proper lockout/tagout procedures to ensure power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.
CAUTION
Use Copper Conductors Only!
Unit terminals are not designed to accept other type conductors. Failure to use copper conductors may result in equipment damage.
Common HVAC Acronyms
For convenience, a number of acronyms and abbreviations are used throughout this manual. These acronyms are alphabetically listed and defined below. CFM =
CKT. = Circuit
CV = Constant volume CW = Clockwise
CCW = Counterclockwise E/A = Exhaust air
F/A = Fresh air
HGBP = Hot gas bypass
HVAC = Heating, ventilation and air conditioning
IGV = Inlet guide vanes I/O = Inputs/outputs
IOM= Installation/operation/maintenance manual
LH =
psig =
R/A = Return air RH =
RPM =
SZ =
Special Note on Refrigeration Emissions
World environmental scientists have concluded that ozone in our upper atmosphere is being reduced due to the release of CFC fully halogenated compounds.
Trane urges all HVAC service personnel to make every effort to prevent any refrigerant emissions while installing, operating, or servicing equipment. Always conserve refrigerants for continued use.
2© 2008 Trane All rights reserved |