Slant Fin 440-856-000 Pressure Switch designed for immediate installation using

designed for immediate installation using the existing mounting points in the burner vestibule

these parts are technically identical

or if it trips the overload protector immediately upon startup

including units from York

This is an SPST (Single Pole Single Throw) switch with a Normally Open (NO) contact function that closes on rising pressure

Slant Fin 440-856-000 Pressure Switch designed for immediate installation usingThe Slant Fin 440 856 000 Pressure Switch is a critical safety component engineered specifically for high efficiency draft inducer monitoring. This OEM Slant Fin replacement part is calibrated to a fixed . 90" WC pressure setting, providing precise differential air pressure detection to ensure the combustion blower is moving sufficient air for safe burner operation. Designed for compatibility with the Slant Fin Victory II series, including models VHS