Reznor 210855 Limit Switch L99H008 60" set point printed on

60" set point printed on the housing

enabling the relay to remain in either a constant "On" or "Off" state to protect sensitive inventory or equipment until the sensor is replaced

a replacement is necessary to prevent motor burnout

ensuring the ceramic isolators and nichrome coils reach operating temperature before maximum airflow is achieved

ensuring the system shuts down gas flow if the plenum temperature exceeds safe operating thresholds

Reznor 210855 Limit Switch L99H008 60" set point printed onThe 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