Lochinvar & A.O. Smith 100167824 Control Board 321894-708 This flexibility makes it a

This flexibility makes it a standard inventory item for contractors servicing high-pressure gas systems

Whether servicing Berko electric heaters or compatible QMark units

This DC starting device includes advanced communication interfaces for error logging and supports both mechanical and electronic NTC thermostats

Electrolysis Mitigation: Utilizes AC current on the probe circuit to minimize mineral buildup and electrode degradation

ensuring minimal downtime for critical HVACR infrastructure

Lochinvar & A.O. Smith 100167824 Control Board 321894-708 This flexibility makes it aThe Lochinvar & A. O. Smith 100167824 Control Board is a critical integrated component designed for high efficiency Knight XL heating boilers, specifically the KBN501 series. As a direct replacement for the obsolete RLY30066, this OEM control board manages essential system parameters including hot surface ignition, flame sensing, and temperature regulation. It ensures precise HVAC system timing and safety protocols by monitoring the air pressure