Supco SFC275350 Fan Cycle Switch 275 PSI Open/350 PSI Close

The Supco SFC275350 Fan Cycle Switch is a pressure activated control used to control fans in refrigeration and HVAC systems. It is also responsive to changes in system pressure to open at about 275 PSI and close at about 350 PSI to allow the fan to cycle according to operating conditions when used in air conditioners, heat pumps and other packaged HVAC equipment. This cycling activity aids in ensuring that there is the right condensing pressure, aids in the effective rejection of heat, and assists in the stable and reliable operation of the system.