Lochinvar & A.O. Smith 100111021 Blower Pressure Switch

The Lochinvar & A.O. Smith 100111021 is a Blower Pressure Switch which is a safety device applied in gas water heaters and boilers. It controls the pressure in the blower assembly, while the blower checks whether the blower is working properly. If pressure is outside the safe limit then the switch turns of the burner to avoid overheating and any combustion issues. This pressure switch is developed for the Lochinvar and A.O. Smith equipment to increase the safety of operation, minimize the energy consumption, and maximize the service life of the heating system by providing the necessary air pressure during operation.