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this auto reset furnace limit switch prevents short-cycling and erratic blower operation caused by restricted airflow or failing thermal sensors
To verify performance
optimized for the airflow requirements of standard PTAC chassis
Direct OEM Compatibility: Replaces 8402-069 and S8402-069 seamlessly
York S1-024-35309-000 Pressure Switch this auto reset furnace limitThe York S1 024 35309 000 is an OEM specified air pressure switch designed for combustion air proving in high efficiency gas furnaces and packaged units. This furnace pressure switch features a SPNO (Single Pole Normally Open) contact configuration and is factory calibrated to a set point of . 35 inches Water Column (WC). Engineered to monitor the differential pressure generated by the inducer motor, it ensures the combustion blower is drawing