Lochinvar & A.O. Smith 100208488 Relay Board 30067439-890 For contractors performing field maintenance

For contractors performing field maintenance

Common Questions Does this model support millivolt systems

allowing for immediate status changes without disrupting the master schedule

The FSF-N15 is specifically engineered for Alco fan speed controls

the Spirax Sarco RTH-125 is a standard-setting solution for two-pipe heating systems

Lochinvar & A.O. Smith 100208488 Relay Board 30067439-890 For contractors performing field maintenanceThe Lochinvar & A. O. Smith 100208488 Relay Board is a critical OEM replacement part engineered for high performance hydronic heating and water heating systems. As the direct replacement for RLY2049, this board facilitates precise communication between the Smart System control module and peripheral components, including pumps, fans, and gas valve relays. Designed for Lochinvar Knight boilers and A. O. Smith commercial units, it ensures accurate