providing stable and repeatable linear movement

Built for industrial and commercial reliability

the Erie VT3313 provides the durability and hydraulic performance required for modern HVACR zoning projects

ensuring long-term reliability without the need for complex recalibration or linkage adjustments

verify the part number against your existing burner controller and flame sensor type before installation

Lochinvar & A.O. Smith 100208324 Switch 320720-756 providing stable and repeatable linearThe Lochinvar & A. O. Smith 100208324 On Off Switch is a critical OEM replacement part designed for precise burner power control in high efficiency hydronic heating systems. As a veteran grade HVAC rocker switch, it provides a reliable interface for manual system cycling and emergency shutdowns. This specific 100208324 switch is engineered to meet the exact electrical specifications required for Lochinvar boiler models and A. O. Smith water heaters,