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 TM 55-1905-223-24-18-1
WARNING
PRESSURIZED GAS HAZARD. Handle R-12 refrigerant
containers with care to avoid personal injury.
Keep containers away from external heat sources.
DO NOT DROP containers. When in use, place
containers where they will not be knocked over.
Place the empty R-1 container upright in a larger open container (bucket) of
f.
cold water. Add ice as necessary to keep water cold while removing charge.
NOTE
The system contains approximately 30 lbs of R-12
r e f r i g e r a n t . Make sure to obtain enough empty
containers to hold the refrigerant being removed.
Make sure to weigh each empty container and record
the weight before removing refrigerant.
If compressor (3) is operational, perform the following:
g.
NOTE
If storing of the refrigerant charge in the
condenser unit is practical for the expected
maintenance, refer to paragraph 2-70.
(1) Remove tag and turn on power to cabinet
(2) Open the gauge manifold discharge (high pressure) handwheel, open the
empty R-12 container valve, and the compressor will pump the refrigerant
charge into the empty container.
WARNING
DO NOT OVERFILL CONTAINER. Use additional
containers as necessary. Weigh container to
determine capacity.
NOTE
After majority of refrigerant charge is
transferred and pressures on gauge manifold are
low, efficient transfer of remainder refrigerant
is not possible.
(3) Shut R-12 storage container valve and remove hoseline to container to
vent remaining refrigerant to the atmosphere.
(4) Turn off power to cabinet and tag.
2-331
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