Lochinvar & A.O. Smith 100304118 Control R-22 chatter-free closing and reduced holding

chatter-free closing and reduced holding power consumption compared to conventional coils

Both provide the same low water cut-off protection

Technicians will recognize this as a critical intermittent pilot ignition replacement part that ensures stable flame rectification and consistent main burner light-off

Replacing it restores the calibrated water timing necessary for accurate volume

Lochinvar & A.O. Smith 100304118 Control R-22 chatter-free closing and reduced holdingThe Lochinvar 100304118 User Interface Control Board is a critical OEM replacement component engineered for precise communication between the technician and the boilers central processing unit. As a genuine Lochinvar boiler part, this interface allows for real time monitoring of HVAC parameters, sensor feedback, and modulation rates. Designed to integrate seamlessly with the SMART SYSTEM control architecture found in Knight, Cadet, and Armor series