Nordyne 632489R SPST Pressure Switch 0.70" WC

The Nordyne 632489R SPST Pressure Switch 0.70"WC is used to keep the air pressure inside HVAC systems and checks if it is at the right level. The switch turns the system on or off the pressure goes above or below what is set, to keep the pressure in the right range. It ensures the right airflow and stops pressure problems from harming system parts. This pressure switch also makes the system works well by stopping problems like freezing or overheating.