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two-circuit control features a single-pole
repeatable resistance outputs at a reference of 77°F (25°C)
It features a compact footprint (approximately 2" x 2
Superior Metallurgy: The stainless steel valve plug and stem withstand aggressive water chemistry better than standard hardware
Lochinvar & A.O. Smith 100208493 Board 320735-701 two-circuit control features a single-poleThe Lochinvar & A. O. Smith 100208493 Pump Relay Board is a critical OEM replacement component designed for high demand hydronic heating applications. Rated for 1. 5 HP pump motor control, this board serves as the primary switching interface between the boiler's integrated control logic and the external circulation pumps. It is specifically engineered for compatibility with Lochinvar Knight XL KB399 800 and FTXL series boilers, as well as several A.
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