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Technical specifications confirm this unit is the direct replacement for Heatcraft 25300101
ensuring it handles typical commercial LP regulator outputs without failure
Ensure the pilot tube is clear and the combustion chamber has adequate airflow for a stable flame
Designed for a 120V primary input and a consistent 24V secondary output
Lochinvar & A.O. Smith 100289519 Label 320819-301 Technical specifications confirm this unitWhen you are out in the field servicing high efficiency hydronic systems, having a legible and responsive interface is non negotiable for precise diagnostics. The Lochinvar & A. O. Smith 100289519 Label is the direct OEM replacement control overlay designed for the Smart System control interface found on Lochinvar Knight and A. O. Smith Vertex series boilers and water heaters. This Control Overlay Label features a professional grade adhesive backing
