Grundfos UPMS is a high-efficiency ECM variable-speed circulator that can be used as an integrated circulator pump in systems designed for a wide variety of heating applications. The pump features robust startup, self-venting ability and dry-running protection leading to fewer callbacks after installation. • Speed-controlled, high-efficiency pump fitted with electronically commutated motor (ECM) with permanent magnet rotor and frequency converter. • Next generation ECM pump designed to integrate with heat sources for better system efficiencies. • Intuitive user interface. • Three settings for constant curve.