Occasionally a technician may need to temporarily add oil to a semi-hermetic reciprocating compressor to maintain an adequate oil level, if the oil has been trapped out in the evaporator or suction ...

HVACR field service terminology is often confusing and misused even by the most seasoned of veterans. But clarification of such terminology among service technicians is of the utmost importance in ...

The small hermetic compressors in ordinary household refrigerators or freezers usually have a permanently welded circular steel shell, which can seal the working gas inside the system. There is no way ...