Its robust design is built to withstand high-static environments and voltage fluctuations common in older HVAC systems

it is rated for equipment like unit heaters

75-inch snap-track or wall mounting to reduce labor time on-site

The assembly features two distinct set points crucial for multi-stage heating: a low fire switch calibrated to -0

ensuring that scale and solder debris are trapped before they reach sensitive expansion devices

York S1-024-39718-000 Switch 30067439-890 Its robust design is builtThe York S1 024 39718 000 is an OEM two stage pressure switch designed for precision air flow monitoring in high efficiency furnace systems. This 0. 90" WC pressure switch serves as a critical safety component, ensuring the draft inducer motor is generating the required vacuum pressure before the ignition sequence initiates. Specifically engineered for York, Coleman, and Luxaire gas furnaces, this high fire switch prevents hazardous conditions like