3
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury
or death.
Before performing service or maintenance operations on
unit, always turn off main power switch to unit and install
lock(s) and lockout tag(s). Unit may have more than one
power switch.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
Puron (R-410A) refrigerant systems operate at higher pres-
sures than standard R-22 systems. Do not use R-22 service
equipment or components on Puron refrigerant equipment.
WARNING
PERSONAL INJURY AND ENVIRONMENTAL HAZARD
Failure to follow this warning could cause personal injury
or death.
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 refriger-
ants and oils.
WARNING
CUT HAZARD
Failure to follow this caution may result in personal injury.
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
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, and/or property damage.
Inlet pressure tap set screw must be tightened and
1
/
8
-in.
NPT pipe plug must be installed to prevent gas leaks.
GAS VALVE
INLET PRESSURE
TAP SET SCREW
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, and/or property damage.
Manifold pressure tap set screw must be tightened and
1
/
8
-in.
NPT pipe plug must be installed to prevent gas leaks.
MANIFOLD
GAS VALVE
MANIFOLD PRESSURE
TAP SET SCREW
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