sharp blue flame that is less susceptible to environmental contaminants or "lazy" flame conditions that trip safety valves

minimizing product waste and clumping

slip-free movement

For unconditioned or outdoor environments

As a staple in the Apollo 70 series

York S1-024-25808-702 Pressure Switch sharp blue flame that isThe 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