How To Change Compressor Oil Hvac. Whenever I face a semi-hermetic compressor burnout I follow the standard practice of blowing the piping with dry nitrogen in order to get out as much of the contaminants and oil as possible installing a suction line filter and oversized liquid line filter and replacing both the suction line filter and compressor oil as necesary until no acidity is found with the oil test. Remove the AC compressor completely.
The compressor is designed to pump refrigerant through the AC system and to convert low pressure vapor refrigerant into high pressure vapor refrigerant. Lubrication cooling is needed in reciprocating compressor as the piston compresses the refrigerant gas. Hold the compressor in your hand and find the black end cap on the rear.
AC compressor refrigerant oil capacity is usually stamped on the compressor.
Hold the compressor in your hand and find the black end cap on the rear. Finally try to keep each compressor sealed clean cool and dry. Empty out all of the old oil from the compressor into a. Draining and Replacing the Oil 1.
