Quiet Operation: Precision-balanced impeller wheel reduces vibration and mechanical noise during the pre-purge and post-purge cycles

Can this 3-way valve be used for both mixing and diverting

What are signs of a failed ignitor

It is designed to fit standard 56Y frame mounts

Lochinvar & A.O. Smith 100109887 Control Module 323613-751 Quiet Operation: Precision-balanced impeller wheelThe Lochinvar & A. O. Smith 100109887 Control Module is a critical integrated ignition control designed for precise gas fired water heater and boiler operation. This Fenwal 35 615922 113 equivalent manages direct spark ignition (DSI) sequences, flame sensing, and gas valve sequencing to ensure optimal combustion efficiency. Engineered for HVAC repair professionals, this 100109887 ignition board provides robust diagnostics through a dedicated LED