Last month’s article examined two systems that were experiencing high compressor discharge temperatures. One system had too much refrigerant, while the other had a partially restricted liquid line. In ...

Article 440 applies to electrically driven air-conditioning (A/C) and refrigeration equipment. Each equipment manufacturer has the compressor motor built to its own specifications. The motors are ...

For example, with an optical compressor such as the popular LA-2A, the input signal sets both time constants automatically, making the at- tack and release program-dependent. Additional, optional ...