Lochinvar & A.O. Smith 100233577 Filter 321894-708 and a 24V 40VA transformer

and a 24V 40VA transformer

utilizing the signature one-handed release button for tool-free actuator removal and replacement without breaking the line

Specifically engineered for use with normally closed valves

fitting the same footprint for seamless field upgrades

Common Questions & Technical Support Is the time relay adjustable on this model

Lochinvar & A.O. Smith 100233577 Filter 321894-708 and a 24V 40VA transformerMaintaining clear intake pathways is critical for high efficiency operation, and the Lochinvar & A. O. Smith 100233577 Filter is the professional grade solution for preventing debris from fouling the heat exchanger. This 1" x 12" x 12" heavy duty air filter kit is specifically engineered for compatibility with a wide range of Lochinvar and A. O. Smith boiler and water heater models, including the Crest (CBL, CBN) and Copper Fin (CHL, CHN) series. As