Featuring a 3/4" MNPT inlet and a 3/4" FNPT outlet

provided it is installed in a horizontal upright position

This surface-mount module includes diagnostic LEDs and a 5-amp low-voltage fuse to protect 24V control circuits

Manifold Pressure Stability: Ensures proper BTUs per hour (BTUH) delivery to the burners following the Nat-to-LP transition

protecting both the technician and sensitive control boards

York S1-024-34684-000 Pressure Switch Els PW 17895 Featuring a 3/4" MNPT inletThe York S1 024 34684 000 Pressure Switch is a critical OEM safety component specifically engineered for York 2 stage furnaces. Designed as a dual stage differential switch, this part monitors the furnace draft inducer motor to ensure combustion gasses are properly vented before allowing the gas valve to energize. Technical specifications include a high stage deactivation rating of 1. 4 in WC and a low stage deactivation at 0. 4 in WC, ensuring