Installation manual
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.










