When dealing with refrigeration or air conditioning compressors that employ an oil pump, many service technicians confuse net oil pressure with oil pump discharge pressure. However, it is of utmost ...

Compressed Air is regarded as the fourth utility next to power, water and fuel (natural gas), and generally the one that all customers should produce and provide themselves. Compressed air is the ...

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 ...