Lochinvar & A.O. Smith 100109877 Pressure Switch SPST

The Lochinvar & A.O. Smith 100109877 Pressure Switch SPST is an essential component of HVAC systems used in water heater and boilers. This switch controls the water pressure of the system and checks to make sure all is well. In the event that the pressure goes high or low, then the equipment is either started or stopped to prevent it from being damaged. In this way, it increases safety and at the same time optimizes energy consumption and increases the service life of the heating system. It counts on a reliable rate for checking your water heating needs.