Nordyne 632550R Pressure Switch Normally Open 1.0/0.7" WC

The Nordyne 632550R Pressure Switch is an essential part of an HVAC system. It is a normally open switch that takes part whenever the pressure in the system exceeds a certain level. This switching device is primarily applied in furnaces and boilers for observing the inside pressure in a combustion chamber. The switch closes when the pressure hits a specific level indicative of effective combustion process allowing continuation of its operation at an optimum condition.