sequential positioning regardless of the external load or friction

When replacing a failed Maxitrol sensor

The orifice must be matched to the outdoor unit's capacity and manufacturer specifications to maintain balanced system pressures

the SWT01245 configuration offers high backwards compatibility across multiple chassis designs

Lockouts typically occur if the 100208388 switch fails to close due to a cracked sensing tube

Lochinvar & A.O. Smith 100208493 Board 318820-201 sequential positioning regardless of theThe 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.