Refrigerant Pressure Sensor / Switch: Specifications

Low psi Control
- opens when the suction pressure falls to approximately 141 kPa (20.5 psi) or lower.
- close when the suction pressure rises to approximately 234 to 262 kPa (34 to 38 psi) or higher.

NOTE: Lower ambient temperatures, below approximately -1° C (30° F), will also cause the switch contacts to open -- due to the pressure/temperature relationship of the refrigerant in the system.

High psi Control = line mounted
- opens >3,100 to 3,375 kPa (450-490 psi)
- resets <1,860 to 2,275 kPa (270-330 psi)