Carrier 38AUM Series, Installation, Operation & Maintenance Manual, Page: 3 / 44

Failure to follow this warning could cause
personal injury, death and /or equipment
damage. Failure to follow this warning could cause
personal injury or death damage.
Puron® (R-410A) refrigerant systems
operate at higher pressures than standard
R-22 systems. Do not use R-22 service
equipment or components on Puron®
refrigerant equipment. Relieve pressure and recover all refrigerant
before system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition
sources away from refrigerants and oils.
Before performing service or maintenance
operations on unit, always turn off main
power switch to unit and install lockout
tag. Unit may have more than one power
switch.
Sheet metal parts may have sharp edges or
burrs. Use care and wear appropriate protective
clothing, safety glasses and gloves when
handling parts and servicing air conditioning
equipment
WARNING WARNING
UNIT OPERATION AND SAFETY
HAZARD
PERSONAL SAFETY AND ENVIRONMENTAL
HAZARD
WARNING CAUTION
ELECTRIC SHOCK HAZARD CUT HAZARD
Failure to follow this warning could cause
personal injury or death. Failure to follow this warning could cause
personal injury.
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