Heating controller: The little one from Resol

With the pump signal converters of the PSW series it is easy, quick and cost-effective to tackle the conversion to high-efficiency pumps. The pump signal converters PSW Basic, PSW Premium and PSW Universal convert the speed control signal of the controller into an input signal suitable for an energy-saving high-efficiency pump. Thus, when replacing the pump, speed control can be enabled without replacing the controller.