Lochinvar & A.O. Smith 100111057 Switch 326058-757 Fail-Safe Operation: Mechanical spring return

Fail-Safe Operation: Mechanical spring return ensures the valve returns to the stem-up position during a loss of pilot air

Optimized Airflow: The 6-tube M-style configuration reduces static pressure drop while maximizing thermal conductivity

For automated operation

Does this part include the water feed tube

making it a critical component for restoring PSC blower motor and 120V HSI ignition sequences in compatible HVACR units

Lochinvar & A.O. Smith 100111057 Switch 326058-757 Fail-Safe Operation: Mechanical spring returnThe Lochinvar & A. O. Smith 100111057 Blocked Inlet Switch is a critical safety component designed for high efficiency commercial water heaters and boilers, including the Cyclone Xi BTH and Shield series. This normally closed (NC) pressure switch monitors the combustion air intake, ensuring the blower assembly receives adequate airflow for safe operation. Engineered with a dedicated 0. 85" W. C. trip point, it immediately breaks the safety circuit if