On any type of refrigeration system, from small reach-in coolers all the way to large chillers, controlling the head pressure of the refrigerant is important.That’s because it helps keep the system ...

This often allows these head-pressure control valves to be used on “floating head-pressure ... Tomczyk is HVACR professor emeritus, Ferris State University, Big Rapids, Michigan, and coauthor of ...

Your Mustang’s air-conditioning compressor, which is an engine-driven pump, pressurizes the system. Refrigerant responds to the amount of pressure placed upon it by the compressor.