Lochinvar & A.O. Smith 100111057 Switch Els PW 29614 the integrated spring return actuator

the integrated spring return actuator ensures fail-safe operation by automatically returning the valve to its closed position during power loss

Restricted airflow due to dirty filters or undersized ductwork often leads to excessive heat buildup and eventual coil burnout

ensuring correct fitment without bracket modification

the HH18HA150 should show continuity (NC position)

Operating at 115V and maintaining a consistent 3000RPM

Lochinvar & A.O. Smith 100111057 Switch Els PW 29614 the integrated spring return actuatorThe 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