Lochinvar & A.O. Smith 100289391 Pressure Switch 320720-756 Capacity depends on the specific

Capacity depends on the specific hardware revision and network traffic requirements

ensuring exact bolt-pattern alignment and harness compatibility

Whether you are addressing bearing failure or a lockout code

or an aging blower motor that is failing to move enough CFM across the heat exchanger

allowing for discharge air monitoring and optimal start recovery based on ambient conditions

Lochinvar & A.O. Smith 100289391 Pressure Switch 320720-756 Capacity depends on the specificThe Lochinvar & A. O. Smith 100289391 Pressure Switch is a critical safety component engineered for high efficiency condensing water heaters and commercial boilers. Calibrated to a 0. 55" WC (Water Column) set point, this direct replacement for 100294588 monitors the induced draft blower to ensure proper venting of combustion gases. In the field, this switch is the primary defense against blocked flue conditions and inducer motor failure, preventing