Lochinvar & A.O. Smith 100208488 Relay Board 30067439-890 Key Benefits 409SS Construction: High-grade

Key Benefits 409SS Construction: High-grade stainless steel prevents premature corrosion in high-heat environments

For contractors performing field maintenance

this 3-blade propeller is optimized to move significant air volume while maintaining low noise profiles during high-static operation

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

allowing for immediate status changes without disrupting the master schedule

Lochinvar & A.O. Smith 100208488 Relay Board 30067439-890 Key Benefits 409SS Construction: High-gradeThe 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