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The 155-degree rating is calibrated for specific pre-heater assemblies where precise fuel atomization temperatures are required for efficient combustion
or the internal diaphragm of the switch has ruptured
When a blocked vent condition trips this switch
the 800001B gasket set is compatible with Raypak Hurricane models
Nordyne 632448R Pressure Switch The 155-degree rating is calibratedThe Nordyne 632448R Pressure Switch is an essential safety component engineered for precise differential air pressure sensing in residential gas furnaces and HVAC systems. As a Single Pole Single Throw (SPST) switch, it is factory set to trip at 1. 65 inches water column (1. 65" WC), ensuring the inducer motor maintains the specific vacuum required for safe combustion and proper flue exhaust. This OEM Nordyne replacement part features a standardized 1