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 ...

[Editor’s note: This is the third in a series of three columns about scroll compressors that began in the Sept. 1 issue of The NEWS and continued in the Oct. 6 issue.] Compressor capacity control is ...

Bob is a service technician who is well trained and nationally certified. However, he sometimes suffers from the same confusion that all technicians occasionally do - the facts that he gathers may or ...