Description
The Burnham Boiler 80160742 Pressure Switch is a sensing control system that monitors air or draft conditions and changes its electrical state when the designated pressure point is reached. Its 0.30″ PSI setting provides the threshold at which the contacts respond to the sensed pressure. A diaphragm inside the control moves as pressure changes, transferring that movement to the electrical contacts. The switching action communicates the pressure condition to the associated control circuit, allowing the operating sequence to proceed or stop according to the HVAC system logic. In boiler applications, it provides an interlock for monitoring pressure conditions associated with combustion and exhaust operation.
