Diagnosing a faulty compressor valve is something HVAC technicians have to deal with on a semi-regular basis, and while a bad valve is often not the main reason a compressor fails, it is an integral ...

The problem: A piston-type reciprocating compressor has had valve damage, or the valves just are not sealing for some reason. This low-temperature refrigeration system has a thermostatic expansion ...

The compressor control logic described thus far can operate both compressors in parallel with necessary control of suction and discharge pressure and flow for both LP and HP stages when it operates at ...