For unconditioned or outdoor environments

this component eliminates the risks associated with universal "one-size-fits-all" switches

slip-free movement

As a staple in the Apollo 70 series

The glycerin fill effectively dampens needle flutter caused by rapid pressure pulsations or equipment vibration

York S1-024-25808-702 Pressure Switch For unconditioned or outdoor environmentsThe York S1 024 25808 702 Pressure Switch is a critical safety component designed for precise vent pressure monitoring in residential and commercial York HVAC systems. Engineered as a SPST (Single Pole Single Throw) normally open switch, this unit features a factory calibrated set point of 0. 60" WC. It serves as an essential watchdog for the combustion process, ensuring the draft inducer motor is moving sufficient air across the heat exchanger before