3 About your heat pumpThe heat pump is a complete heat pump installation for heating and hotwater. Certain models have an integrated water heater. Using the TWS(Tap Water Stratificator) technology, more effective heat transfer andefficient layering of the water in the water heater is achieved.The heat pump is equipped with control equipment, which is operatedvia a control panel.Heat enters the house via a water borne heating system. The heat pumpsupplies as much of the heat demand as possible before auxiliary heat-ing is engaged and assists.The heat pump unit consists of five basic units:34512Symbol explanation1 Heat pump unit with compressor, heatexchanger, circulation pumps for brine andheating systems, valves and safety equip-ment.2 Water heater3 Exchange valve or shunt valve that theheated water either passes through to theheating system or to the water heaterdepending on whether heating or hot wateris to be produced4 Auxiliary heater with an immersion heaterinstalled on the heating system’s supply line.5 Control equipmentOutdoor and defroster functionApplies to DHP-A.DHP-A are equipped with an outdoor unit that uses air as a heat sourcedown to -20°C. The outdoor unit has a coil where brine recovers energy6 – User manual VUBMA902