York S1-024-35273-000 Switch Els PW 17895 What is the difference between

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maintaining the original equipment manufacturer’s safety protocols and combustion air ratios

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York S1-024-35273-000 Switch Els PW 17895 What is the difference betweenThe York S1 024 35273 000 Switch is a critical safety component designed for precise draft pressure monitoring in York, Coleman, and Luxaire gas furnaces. This dual stage pressure switch features a Single Pole Normally Open (SPNO) configuration and is engineered for close on fall operation. The high fire switch is calibrated at 0. 40" WC, while the secondary switch is rated for 0. 25" WC. This multi stage calibration ensures the inducer motor