Nordyne 632451R Pressure SwitchNordyne 632451R is a trusted HVAC component designed as a precise pressure switch for residential and light commercial systems. The Pressure Switch 0. 9m3c helps regulate airflow and protects furnaces by sensing duct pressure and signaling the blower to start or stop safely. Built for compatibility with Nordyne equipment, this replacement part ensures reliable operation and consistent performance across seasons. With a compact design and rugged

This plug-and-play control panel

a maximum temperature rating of 180°F (fluid)

Wide compatibility suitable for select Goodman furnace models

combustion

Designed for OEM-grade performance

temperature rating to 200°F

3/4" x 3/4" connections with reducer bushings for flexible installation

3H) fit tight boiler rooms and simplify installation

The device features a 5

The compact 24-inch length simplifies installation in tight equipment enclosures

The model number 18472121 corresponds to the exact device

max line pressure 225 psi