Lochinvar & A.O. Smith 100093633 Switch 328140-751 Automatic Reset Logic: Eliminates nuisance

Automatic Reset Logic: Eliminates nuisance service calls by automatically restarting the burner when water levels are stabilized

Smith replacement part for guaranteed fit and proper alignment with heating elements

Chemical Resilience: Optimized for compatibility with synthetic and mineral oils used in high-capacity HVACR systems

1 standards for professional-grade installations

contractors can restore original factory specifications and maintain proper linear flow characteristics in demanding commercial hydronic applications

Lochinvar & A.O. Smith 100093633 Switch 328140-751 Automatic Reset Logic: Eliminates nuisanceThe Lochinvar & A. O. Smith 100093633 Pressure Switch is a critical OEM safety component engineered for high efficiency water heating systems, including Polaris water heaters. This 0. 85" WC pressure switch operates as a normally open contact that closes when the inducer fan generates sufficient static pressure, ensuring the combustion cycle only proceeds under safe venting conditions. As a direct Polaris IS22085 replacement, this kit provides a