Replacing the user interface board often resolves communication faults between the main processor and the display

OEM Reliability: Built by Johnson Controls/York to exact factory specifications

Constructed with a heavy-duty die-cast aluminum body to withstand the rigors of mechanical room environments

preventing unnecessary heat gain in the refrigerated space

extending the service life in harsh water conditions

Lochinvar & A.O. Smith 100171922 Valve 328140-751 Replacing the user interface boardThe Lochinvar & A. O. Smith 100171922 is a heavy duty 3 way control valve assembly engineered for precise hydronic flow management in high capacity commercial boiler systems. This 2 inch NPT mixing and diverting valve features a robust brass body with plated brass trim, delivering a high 109 Cv flow coefficient. It utilizes an equal percentage flow characteristic on Port A to AB for accurate modulation and a linear flow profile on Port B to AB. Driven