Broad Compatibility: Engineered specifically for York

as well as various gas-fired units

Operating on a standard 24V control circuit

shielding terminal blocks and wiring from dust

this switch is mounted on the side of the burner box or near the manifold to monitor for escaping flames or excessive radiant heat

McDonnell & Miller 305200 Replacement Switch Els PW 17895 Broad Compatibility: Engineered specifically forThe McDonnell & Miller 305200 Replacement Switch (Model number FS4 33) is a high performance SPDT (Single Pole, Double Throw) snap action assembly specifically engineered for integration with general purpose liquid flow switches. This technician grade component serves as the core electrical interface for Series FS4 3 and FS4 3T units, detecting flow velocity changes to trigger or terminate power to downstream equipment such as pumps, burners, and