or disable the adjustment entirely to prevent unauthorized tampering

Easy Diagnostics: Includes a conversion chart for fast

ensure the pneumatic control air is clean and dry to prevent premature component failure

we recommend inspections every 6 months

Durable Construction: Built with robust materials to withstand the high-pressure environment of 5-ton R-22 systems

Lochinvar & A.O. Smith 100167799 Control Board R-410A or disable the adjustment entirelyAs 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