With a 200 psi closeoff pressure and 500:1 rangeability

this assembly provides the OEM compatibility and industrial-grade reliability necessary to maintain peak boiler combustion efficiency and system safety

Unlike legacy thermostatic expansion valves

Key Benefits Precision Thermal Calibration: Fixed 325°F (163°C) trip point ensures timely circuit interruption to protect the heat exchanger

Whether you are resealing a burner plate

Lochinvar & A.O. Smith 100093633 Switch 323269-701 With a 200 psi closeoffThe 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