Bob and Tim are at a job where a technician from another company could not figure out the electrical, so he just put the panel back on the electrical compartment and left the job. It is a heat pump ...

Acceptable ohm reading for a good current relay. One type of starting relay used on fractional-horsepower compressors is the current relay. This type of starting relay uses the initial high inrush ...

This dynamic compressor with passive components reduces high signal to a lower, more constant signal. If you look at this compressor schematic, you’ll notice it has no power supply, the required power ...