Rheem 42-102056-22 Pressure Switch Pressure Switch

Pressure Switch

Pressure Switch

The Pressure Switch is a device that senses a decrease in water pressure and controls the operation of a water-using appliance. It operates electronic solenoid valves that actuate when pressure is lost, switching an electric pump on to supply water. This pressure switch comes with a 5-ft. cord.

Have a pressure switch? We have low prices on parts for that unit. Rheem pressure switches are used in many different HVAC systems.

Switch Pressure Valve Assembly

The Pressure Switch is one of the major types of switch used in HVAC systems. Other common types include pressure temperature, pressure differential, and many other specialized types. Pressure switches usually consist of Enclosures made of bronze or steel, a diaphragm, and some type of chamber. The diaphragm is basically a metal disc that will expand when pressure acts upon it, thus pushing on a fluid in a chamber to activate the switch. On the other hand, when pressure is relieved the fluid on the other side of the diaphragm will escape and shrink away from the diaphragm and

The 42-102056-22 pressure switch is a replacement for the 42-102056. The replacement part is an aftermarket equivalent of the original Rheem unit and is designed, manufactured and conditioned to specifications compatible with the original unit.

The pressure switch connects the water pressure from the house to the control valve on the tankless gas water heater.