Easily adjust the operating point of the control, as well as the differential, with the externally located adjustment screws on the top of the control enclosure. Both the cut-in and cutout control set points are quick to read on the large graduated scale on the front of the case.
The pressure control features a non-metallic diaphragm member which moves in response to changes in air pressure. As a result, the lever-mechanism diaphragm actuates a heavy duty electrical contact.