TM 9-4120-400-14
DISCHARGING
DANGEROUS CHEMICAL REFRIGERANT UNDER PRESSURE
is used in the operation of this equipment.
NOTE
Use great care to avoid contact with liquid refrigerant or inhaling refrigerant
gas being discharged from any container under pressure. Sudden and irre-
versible tissue damage can result from freezing. Wear thermal protective
gloves and a face protector or safety glasses in any situation where skin or
eye contact is possible.
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes
the refrigerant to break down and form carbonyl chloride (phosgene), a
highly toxic and corrosive gas.
NOTE
In accordance with Environmental Protection Agency regulations, refriger-
ants can not be discharged into the atmosphere. A refrigerant recovery/re-
cycling unit must be used whenever discharging the refrigeration system.
1.
Connect the yellow 1/4 inch (charge) hose to an approved refrigerant recovery/recycling unit.
Follow instructions for specific container or refrigerant recovery unit being
used to avoid compressor oil loss. Loss of oil could result in compressor
damage.
2.
Open pressure gauge and compound gauge valves.
NOTE
Operation of the recovery/recycling unit must be by authorized personnel
only.
3.
Operate the recovery/recycling unit in accordance with the manufacturer's instructions.
NOTE
FOLLOW-ON MAINTENANCE:
5-27