Many refrigeration compressors incorporate a suction service valve and a discharge service valve. Working with these valves is not difficult, but there are some finer points to remember.

About DunAn MicrostaqDunAn Microstaq, Inc. (DMQ) is a MEMS technology company dedicated to advancing flow control solutions primarily for the HVAC, refrigeration and automotive industries.

Electronically controlled electric valves have been accepted for years in larger applications, just as chillers have been, and have proven to add efficiency to the systems. The key to the increase in ...

Oil lubricates the compressor, a drier absorbs any troublesome moisture and valves or switches regulate the flow of refrigerant through the evaporator.

A/C System Basics Your car's A/C system consists of five major components: compressor, condenser, receiver/dryer or accumulator, thermal expansion valve or orifice tube, and the evaporator.