The FV-4M1 relies on a vertical float mechanism to actuate the valve plug

A healthy sensor typically generates between 2

Common Questions Are these clamps compatible with non-Johnson Controls rails

and Miller gas furnaces

Use on non-compatible models may violate local codes and compromise safety

York S1-024-35929-000 Pressure Switch The FV-4M1 relies on aThe York S1 024 35929 000 Pressure Switch is a critical safety component designed for precise HVAC airflow monitoring in high efficiency systems. Calibrated to a 0. 15" WC set point, this SPNO (Single Pole Normally Open) switch is engineered to close on a fall in pressure, ensuring the draft inducer has established a proper vacuum before allowing the ignition sequence to proceed. As the direct replacement for 024 35812 000, this OEM part maintains