Lochinvar & A.O. Smith 100208465 Control Board 321894-708 replacing it with a new

replacing it with a new Armstrong R41354-001 is necessary to prevent motor damage

making it a reliable choice for commercial air conditioning and medium-temperature refrigeration applications

and many corrosive chemicals

ensuring safe operation in high-load environments

Verify specific project submittals before use in oxygen-enriched environments

Lochinvar & A.O. Smith 100208465 Control Board 321894-708 replacing it with a newThe 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