Refrigerants pressure transducer
A3 Temperature Controllers-RPT
The RPT-A3 Series Temperature Controller primarily utilizes a pressure sensor to detect and display the pressure on the temperature controller interface. It then employs this pressure data to diagnose various issues such as refrigerant leaks, insufficient refrigerant levels, blockages, and compressor malfunctions.
Refrigerator and freezer pressure flow chart

Split type air conditioning pressure flow chart
