Manufacturers of refrigerants, controls, and other suppliers distribute hundreds of thousands of pressure-temperature charts to the trade every year. It would be rare indeed to find service ...

Last month’s article covered a 400-series refrigerant blend’s total temperature glide, effective temperature glide, fractionation, superheat, subcooling, and average evaporator and condensing ...

The DPTS is available as a superheat sensor as well. In a HVAC-R system, two DPTS sensors can be used to measure superheat and subcooling. Superheat measurements monitor the efficiency of the HVAC-R ...

Frequently, compressor failure in HVAC and refrigeration systems occurs due to liquid refrigerant floodback when 1. evaporator coils are blocked 2. poorly defined expansion valve superheat setting, or ...