6
Safety Precautions
The symbol appears next to a point that is particularly important:
DANGER: Addresses a circumstance that, if encountered,
will lead to death or serious injury
WARNING: Addresses a circumstance that, if encountered,
might lead to death or serious injury.
CAUTION: Addresses a circumstance that, if encountered,
may cause damage to equipment or minor injury.
DANGER: Never operate the unit with the discharge valve
closed because it could cause the compressor to explode,
causing death or serious injury.
DANGER: Never apply heat to a sealed refrigeration system or
container because it could explode, causing death or serious
injury
DANGER: Fluorocarbon refrigerants, in the presence of an
open flame or electrical short, produce toxic gases that are
severe respiratory irritants capable of causing death.
DANGER: Be careful when working with a refrigerant or
refrigeration system in any enclosed or confined area with a
limited air supply (i.e., a trailer, container or the hold of a
ship). Refrigerant tends to displace air and can cause oxygen
depletion which may result in death by suffocation.
WARNING: Always wear goggles or safety glasses.
Refrigerant liquid, refrigeration oil, and battery acid can
permanently damage the eyes (see First Aid under
Refrigeration Oil).
WARNING: Keep your hands away from fans and belts when
the unit is running. This should also be considered when
opening and closing the compressor service valves.
WARNING: Make sure gauge manifold hoses are in good
condition. Never let them come in contact with a belt, fan
motor pulley, or any hot surface.
WARNING: Make sure all mounting bolts are tight and are of
correct length for their particular application
WARNING: Never drill holes in the unit unless absolutely
necessary. Holes drilled into the unit may weaken structural
components. Holes drilled into electrical wiring can cause fire
or explosion.
WARNING: When using ladders to install or service
refrigeration systems, always observe the ladder
manufacturer’s safety labels and warnings. A work platform is
the recommended method for installations.
WARNING: Exposed coil fins are very sharp and can cause
painful lacerations.Wear leather work gloves to prevent injury.
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