Mitsubishi Electronics PURY-P400 Air Conditioner User Manual


 
5
Use only the necessary minimum quantity of oil !
Reason :
1. The refrigerator oil used for the equipment is highly hygroscopic and may introduce water inside.
Notes :
Introducing a great quantity of mineral oil into the refrigerant circuit may also cause a compressor failure.
Do not use oils other than ester oil, ether oil or alkylbenzene.
[2] Piping Machining
Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flange connections.