Semi-hermetic compressors are frequently used on light commercial air conditioning and refrigeration equipment. With the cast iron body and bolted head, oil pan, oil pump,…
Category: Refrigerator Compressor
When the compressor is in a refrigeration system and in operation, if the suction-side and high-side pressures are almost the same, the valves might be…
■ Turn off power and remove the wiring from the hermetic compressor motor terminals. ■ Study Fig. 3-15. ■ Wire line one to common and…
This is another method that can be used to try to break loose a locked rotor in a single-phase compressor. ■ Make sure the start…
The compressor hums but will not start. The overload relay usually opens the common winding either internally or externally, this allows the windings to cool…
The single-phase hermetic compressor has a fixed rotation of its electric motor. In three-phase applications rotation is very important. The compressor might have a directional…
Place a test probe on terminal one. With the other probe touch terminal two. The meter needle should deflect. This shows there is a circuit.…
Scrape the copper suction line on the compressor so it shines. This can be done with a knife blade or a piece of sand cloth.…
With the compressor being the most expensive component in the system, it is wise to be sure it is bad before you condemn it. For…
Two types of terminal connections are used with hermetic and semi-hermetic compressors. On the hermetic compressors, pins or terminals are sealed within bakelite or ceramic.…