Resideo 3033 SPDT Air Pressure Switch 2-22 PSI

The Resideo 3033 Pressure Air Switch is a universal SPDT switch designed for HVAC systems. It works between 2 and 22 PSI pressure and is designed to handle temperature variations between 32°F and 190°F. This switch is capable of controlling up to 1 horsepower and comes with a 75 PSI pressure regulator hence can be used in heating and cooling systems. This is done by making or breaking electrical circuits depending on the pressure of the air to give constant control of HVAC equipment. The 120V voltage specification is convenient with standard systems that make the device unique.