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MITSUBISHI ELECTRIC P500YMF-C User Manual

Page 7

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–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.