Built to genuine OEM specifications

Structural Durability: Galvanized steel construction with a heavy-duty blade and shaft for longevity in high-cycle applications

Integrated Diagnostics: Features onboard LED indicators and test pins to allow for rapid field troubleshooting and "speed-up" cycle verification

Essential for maintaining AFUE efficiency ratings by controlling the heat transfer rate across the primary and secondary cells

Aluminized Steel Construction: High-grade material provides superior resistance to corrosion and thermal oxidation during combustion cycles

Reznor 210855 Limit Switch 320788-704 Built to genuine OEM specificationsThe Reznor 210855 Limit Switch is a critical high limit safety component designed for precise thermal monitoring in commercial unit heaters and air handlers. Engineered as an L240F manual reset limit switch, this device is calibrated to trip at 240F, effectively interrupting the power supply to the heating circuit to prevent unit damage or safety hazards. This specific HVAC high limit control features a 60 inch capillary, providing the necessary reach