Nordyne 632422R Pressure Switch 321142-301 this 3-4 ton evaporator coil

this 3-4 ton evaporator coil is built to restore factory specifications and maintain original system pressure drops

This unit supports specific Category II and Category IV venting requirements where precise exhaust gas regulation is critical for system longevity and code compliance

the entire thermostatic element may need replacement

you ensure exact dimensional fit and pressure drop specifications required for Carrier heat pumps

making it suitable for both 208/230V and 120V circuits

Nordyne 632422R Pressure Switch 321142-301 this 3-4 ton evaporator coilThe Nordyne 632422R Pressure Switch is an essential OEM safety component designed for precise furnace pressure monitoring in high efficiency heating systems. This SPST (Single Pole Single Throw) vacuum switch is factory calibrated to a specific 1. 00" WC (Water Column) set point, ensuring the inducer motor maintains proper static pressure and flue venting before allowing the ignition sequence to proceed. As a genuine Nordyne replacement part, it is