Flexible Mounting: Provides multiple slot configurations for mounting to ductwork

Durable SPST Design: Single Pole Single Throw configuration provides a reliable point of failure for safety-critical circuits

Always inspect the vacuum lines for cracks before replacing the switch

effectively preventing heat exchanger damage and ensuring system safety

Universal Compatibility: Industry-standard blade design fits most 11-pin relay sockets used in commercial HVAC and industrial controls

Reznor 112754 Switch Flexible Mounting: Provides multiple slotThe Reznor 112754 Blocked Flue Switch is a critical safety component designed for commercial and residential HVAC units, specifically engineered to monitor venting conditions and mitigate hazardous exhaust buildup. This manual reset limit switch is factory calibrated at a 175F temperature rating (L175F), functioning as a fail safe device that interrupts the heating cycle if a blockage occurs within the flue pipe or heat exchanger system. Utilizing a