it is rated for equipment like unit heaters

It serves as the direct replacement for Lennox 12J20 and 91M02

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

Contractors appreciate the smart scheduling features and the ability to operate via battery or hardwire

Engineered as a genuine York OEM furnace part

York S1-024-39718-000 Switch 30067439-890 it is rated for equipmentThe 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