Precise Thermal Calibration: Fixed 180°F cutout protects the heat exchanger from structural fatigue during restricted airflow events

Reliable Switching: Built to manage the arcing and heat generation typical of high-current switching in HVAC applications

Can I bypass the limit switch for testing

the 802-22 is the updated technical successor to the original 802 model

Nordyne 632491R Pressure Switch Precise Thermal Calibration: Fixed 180°FThe Nordyne 632491R Pressure Switch is an essential OEM safety component engineered for precise inducer motor monitoring in specific Nordyne, Miller, and Intertherm furnace assemblies. This SPST pressure switch is factory calibrated to a 1. 50" WC (Water Column) set point, ensuring the combustion process only initiates when proper static pressure and venting conditions are met. Designed with a standard 1 4" barb connection, it provides a secure seal