Those big skyscrapers sometimes use semihermetic compresssors (like boat
motors, or car engines). Which have a crankcase for the oil.
Refrigerators do mix the oil and refrigerant, and so for refrig, that's
As to mixing th eoil and refrigerant, that's a new one to me, I do mostly
small stuff, not skyscrapers.
As for the new fridge, I think the major problem is oil in the piston. Cause
oil isn't compressable. I've seen a couple cases where folks tipped a fridge
to move it. When they plugged it right back in, it killed the compressor.
Christopher A. Young
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