Introduction
COM-SVN003B-EN
3
WARNING
R-410A Refrigerant under Higher Pressure
than R-22
Failure to use proper equipment or components as
described below, could result in equipment failing and
possibly exploding, which could result in death, serious
injury, or equipment damage. The units described in
this manual use R-410A refrigerant which operates at
higher pressures than R-22. Use ONLY R-410A rated
service equipment or components with these units. For
specific handling concerns with R-410A, please contact
your local Trane representative.
WARNING
Hazard of Explosion and Deadly Gases!
Never solder, braze or weld on refrigerant lines or any
unit components that are above atmospheric pressure
or where refrigerant may be present. Always remove
refrigerant by following the guidelines established by
the EPA Federal Clean Air Act or other state or local
codes as appropriate. After refrigerant removal, use dry
nitrogen to bring system back to atmospheric pressure
before opening system for repairs. mixtures of
refrigerants and air under pressure may become
combustible in the presence of an ignition source
leading to an explosion. Excessive heat from soldering,
brazing or welding with refrigerant vapors present can
form highly toxic gases and extremely corrosive acids.
Failure to follow all proper safe refrigerant handling
practices could result in death or serious injury.
WARNING
Hazard of Explosion!
Use only dry nitrogen with a pressure regulator for
pressurizing unit. Do not use acetylene, oxygen or
compressed air or mixtures containing them for
pressure testing. Do not use mixtures of a hydrogen
containing refrigerant and air above atmospheric
pressure for pressure testing as they may become
flammable and could result in an explosion. Refrigerant,
when used as a trace gas should only be mixed with dry
nitrogen for pressurizing units. Failure to follow these
instructions could result in death or serious injury or
equipment or property-only damage.
WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures
recommended in this section of the manual could result
in exposure to electrical, mechanical or other potential
safety hazards. Always refer to the safety warnings
provided throughout this manual concerning these
procedures. When possible, disconnect all electrical
power including remote disconnect and discharge all
energy storing devices such as capacitors before
servicing. Follow proper lockout/tag out procedures to
ensure the power can not be inadvertently energized.
When necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been trained in handling live
electrical components perform these tasks. Failure to
follow all of the safety warnings provided could result in
death or serious injury.
WARNING
Hazardous Conditions!
Observe and follow the “Warning” and “Notices” labels
on the compressor. Failure to follow these instructions
could result in death or serious injury or damage to the
equipment.
NOTICE
Use Proper Charging and Crankcase
Heater Operation Procedures!
Failure to utilize proper charging and crankcase heater
procedure will result in compressor failure. Refer to unit
IOM or
and
in this manual for the proper
procedures.
WARNING
Follow EHS Policies!
Failure to follow instructions below could result in
death or serious injury.
•
All Trane personnel must follow the company’s
Environmental, Health and Safety (EHS) policies
when performing work such as hot work, electrical,
fall protection, lockout/tagout, refrigerant handling,
etc. Where local regulations are more stringent than
these policies, those regulations supersede these
policies.
•
Non-Trane personnel should always follow local
regulations.
