Internally controlled and are designed for systems with variable flow rates, where the pump is internally controlled via a user interface. Speed control can reduce power consumption considerably. Eight different control modes, including constant pressure, AUTOAdapt and proportional pressure - AUTOAdapt: The AUTOAdapt function continuously adjusts the pump performance to the actual heat demand, i.e. the size of the system and the changing heat demand during the year. The function will find the setting that provides optimal comfort with minimal energy consumption. It contributes to fast, safe and easy commissioning. A magnetite resistant design, robust ceramic shaft, and stainless steel bearing plate ensure that the circulator reliably delivers the optimal system performance throughout the years at the lowest possible energy consumption.