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Thanks Majdi Quick Answer. I would like add some thinks about to choosing theright lubricating oil for the compressor has becomemore complex with theintroduction of new refrigerants. Table gives some indication as to the suitability of the traditional and newlubricating oils. Compressor manufacturers should be consulted with regards to changing
I hope useful to you thanks.
Table Choice of compressor lubricant
Refrigerant (H)CFC Service HFC + Hydro- Ammonia
Lubricant blend blends carbons
Traditional oils
Mineral * ** X * V *
Alkyl benzene * * ** * V **
Poly-apha-olefin ** X X * V **
New lubricants
Polyol-ester ** M V * M V * * V X
Poly-glycol X X ** M ** M ** M
Hydro-treated X X X X *
mineral oil
Key
* Good suitability
** Application with limitations
X Not suitable
M Especially critical with moisture
V Possible correction of basic viscosity
there are5 types of (floro cloro carbon) refrigerants ....every type need different oil type .