Field Controls 46089800 Air Switch 322838-753 Compatibility is determined by the

Compatibility is determined by the cabinet width and series

or the motor being hot to the touch while the fan remains stationary

As a weatherproof outdoor sensor

Built for durability in demanding exterior environments

Pneumatic Reliability: Optimized for consistent response in pneumatic control valves

Field Controls 46089800 Air Switch 322838-753 Compatibility is determined by theThe Field Controls 46089800, also known as the DIP 1 Fan Proving Switch Kit, is a critical safety component designed to verify proper airflow before allowing combustion. Built for draft inducer systems, this negative pressure switch ensures that the venter motor is functioning and the flue is clear of obstructions. It serves as an essential interlock in the furnace control circuit, preventing the gas valve or oil burner from energizing if safe venting