The cascade heat pump WP Max KK is unique on the market in its design. It can be designed as a brine/water or water/water heat pump. It consists of a base platform and two or three independent heat pump modules, which can be combined as required in a modular design with a heating capacity of 15-35 kW. By cleverly combining Fix-Speed modules with inverter modules, the integrated KAskaden control system can efficiently cover any operating condition in a very wide range. Thanks to the environmentally friendly refrigerant R513A, flow temperatures of 72 °C are possible.