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 ...

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 ...

If you plan on using air tools and want an air compressor from Harbor Freight, it's important to know the correct size you need for the job. For example, if you're working inside with small 16-23 ...