Lochinvar & A.O. Smith 100208465 Control Board 323055-751 Using a standard steel tube

Using a standard steel tube is not recommended as it lacks the corrosion-resistant properties of the Reznor 94777

High rangeability of 500:1 ensures precise control at the lower end of the flow curve

These adapters are primarily designed for hydronic (water) heating systems

Multi-Speed Flexibility: 3-speed configuration provides adjustable airflow performance at 1075 RPM

If the float is damaged or "waterlogged

Lochinvar & A.O. Smith 100208465 Control Board 323055-751 Using a standard steel tubeThe Lochinvar & A. O. Smith 100208465 Control Board is a critical OEM replacement part designed for high efficiency commercial water heaters and hydronic boilers. Engineered as a direct substitute for the RLY20001 and RLY20001K legacy boards, this integrated ignition control circuit manages vital system sequences, including flame rectification, temperature regulation, and draft inducer timing. It serves as the primary logic hub for monitoring pressure