Lochinvar & A.O. Smith 100109864 Blower Assembly 320788-704 This microprocessor-based module is engineered

This microprocessor-based module is engineered with a 4-second Trial for Ignition (TFI) and operates with 0-second pre-purge

Simplified Installation: Features a high-visibility scale plate for accurate calibration and a universal mounting design that fits standard brackets

If the switch opens at temperatures significantly below 160°F

the outer cover is replaceable using part T-5210-602

to meet specific manifold pressure requirements

Lochinvar & A.O. Smith 100109864 Blower Assembly 320788-704 This microprocessor-based module is engineeredThe Lochinvar & A. O. Smith 100109864 Blower Assembly is a direct OEM replacement engineered for high efficiency commercial water heaters and boilers. Designed to maintain precise air fuel ratios, this combustion blower motor ensures stable flame signals and optimal thermal output. As a critical component in the pre mix combustion system, it integrates seamlessly with the control board to modulate airflow based on demand, preventing short cycling and