Mitsubishi Electric PUHY-RP200 Service Handbook page 54

[ II Restrictions ]
CAUTION
Charge refrigerant in the liquid state.
ŒIf gaseous refrigerant is drawn out of the cylinder first, the composition of the refrigerant in the cylinder will change
and become unsuitable for use. It will also lead to performance loss.
CAUTION
Store the piping materials indoors, and keep both ends of the pipes sealed until immediately before brazing.
(Keep elbows and other joints in plastic bags.)
ŒInfiltration of dust, dirt, or water into the refrigerant system may cause the refrigerant oil to deteriorate or damage the
compressor.
CAUTION
Do not use a charging cylinder.
ŒThe use of a charging cylinder will change the composition of the refrigerant in the cylinder. It will also lead to per-
formance loss.
HWE10010 - 45 - GB