Nordyne 624773R Interface Board 321702-401 a KPU1 or similar low-pressure

a KPU1 or similar low-pressure control should be utilized

Providing 22 in-lb torque

this spring-actuated check valve utilizes the proprietary Ball Cone design to ensure a bubble-tight seal even in low-pressure conditions

The 1/2" bore hub is positioned on the intake side for proper seating on the motor shaft

This sensor is a direct replacement for the fan limit switch found in Williams Blower Kit 2303

Nordyne 624773R Interface Board 321702-401 a KPU1 or similar low-pressureAs a veteran HVACR technician, I know that when a Nordyne furnace or air handler exhibits irregular blower behavior or fails to initiate the sequence of operation, the Nordyne 624773R Interface Board is a primary troubleshooting point. This specialized HVAC control board acts as the communication hub for your split system, whether you are servicing an Intertherm furnace, a Miller furnace, or a standard Nordyne unit. This board manages critical 24V