Description
Universal SPDT Switching: Supports both make-on-rise and break-on-rise applications
whereas a manual reset limit switch like this one requires a physical press of the reset button
Broad Chemical Compatibility: Fully compatible with HFC refrigerants and existing POE-based systems for simplified retrofitting
Solenoid coils are designed to match the specific magnetic circuit and plunger diameter of the valve stem
Lochinvar & A.O. Smith 100167799 Control Board 30067439-890 Universal SPDT Switching: Supports bothAs a veteran tech, you know that a glitchy boiler often traces back to the primary logic center. The Lochinvar & A. O. Smith 100167799 Control Board is the definitive OEM replacement part for high efficiency hydronic systems. This integrated control board is a direct, drop in successor to the discontinued RLY30043, ensuring 100% circuit board compatibility without requiring harness modifications. Engineered specifically for the Lochinvar Knight