Cleveland Controls NS2-0078-00 Pressure Switch

The Cleveland Controls NS2-0078-00 Differential air pressure switch is applied for HVAC purposes. This switch measures air pressure in applications such as furnaces, air handlers, and rooftop units. Because it reacts to differential pressure between two points, the term probably refers to a pressure differential switch. Upon attaining the pressure differential set point of 0.38” WC, the switch opens or closes an electrical contact which can be applied to a fan, burner, or any other equipment. This prevents gusting or insufficient draft for combination and ventilation purposes. Some of the advantages include dependable performance, precise pressure measurement, and essential safety lockouts in HVAC equipment, such as lack of proper combustion air or obstructed vents.