Integrated and stand-alone replacement:UPS4 GO is a high-efficiency circulator pump fitted with an electronically commutated motor and designed for circulating liquids in heating and air conditioning systems. Replacement of integrated UPS and stand-alone circulator pumps, including replicating curves, is made easy by using the Grundfos GO app and operating panel. UPS4 GO is equipped with intelligent controls and offers three control modes: constant pressure, proportional pressure and constant curve. Each mode has three adjustable speed settings.Self-venting and dry-running protection:The automatic self-venting ability and dry-running protection ensure quiet operation and reliability of the pump. Fault finding is fast and easy by using the error codes on the pump operating panel.Robust startup:The UPS4 GO features robust startup which reduces the risk of blockages from dirt, magnetite and limescale build-up. In the unlikely case of a blocked pump, the motor continuously attempts to start at the highest possible torque, ensuring startup in tough conditions. The ceramic shaft and bearings experience minimal wear, resulting in a longer lifespan and a reduced likelihood of noise in the system due to increased bearing clearance from wear. The toolless installer plug enables a fast and easy electrical connection.