
Compressor Application Manual
67
The R 134a does not blend
with mineral or synthetic
oils (non-miscible).
SYNTHETIC OR
MINERAL OIL
+
R 12
ESTER OIL
+
R 134a
SYNTHETIC OR
MINERAL OIL
+
R 134a
less less
VII
Ester oils have been specially
developed to work with R 134a
(acceptable miscibility).
1.5 - Equalizing Pressure
Considering the same refrigerant fluid
and oil charge, the equalizing pressures
will be:
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