One of the more elusive causes of three-phase compressor motor overheating and failure is an imbalance in voltage. Compressor voltage unbalance can be found with a voltmeter by measuring between ...

My column in the March 8 issue of The NEWS dealt mainly with reciprocating compressors experiencing low head pressure and high suction pressure from bad valves. The article pointed out reasons why a ...

Ever notice how your HVAC only gets your attention when it starts acting up? When it hums along, you forget it exists. But once it groans, rattles, or stops cold in the middle of a heatwave, it ...