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00" WC set point for accurate inducer fan verification and venting safety
Flexible Installation: Features dual-purpose terminals (screws and 1/4" spades) for faster field service
What are the symptoms of a failing defrost sensor
Designed to maintain a gas-tight seal between the heat exchanger and the flue collector box
specifically the 4007 and 5507 series
York S1-024-39490-000 Pressure Switch 00" WC set point forThe S1 024 39490 000 is a factory caliber York pressure switch engineered to monitor vital air pressure differentials within the combustion blower assembly. This 0. 26 WC pressure switch acts as a primary safety limit, confirming that the inducer motor is exhausting flue gases effectively before allowing the gas valve to energize. Built as a furnace pressure switch replacement, this component is the direct functional successor to the 024 27557 000,