Lochinvar & A.O. Smith 100289519 Label 320819-301 and can be configured for

and can be configured for automatic or manual reset to meet ASME CSD-1 requirements

ensuring it handles typical commercial LP regulator outputs without failure

Designed for a 120V primary input and a consistent 24V secondary output

For contractors managing large-scale maintenance

Lochinvar & A.O. Smith 100289519 Label 320819-301 and can be configured forWhen 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