GDH-Air series - 5 kW, 7 kW, 12 kW, 16 kW, 24 kW - Low noise Air water heat pump for out- and indoor Design heat pump is suitable for outdoor and indoor installation. All-in-one design with plate heat exchanger outside for easy installation with water pipes. The pipes can be connected over or under the ground. Whole technique is noise canceled and the fan is regulated by temperature and day time. The heat pump manager can be optional controlled over the internet. There is also an option for a heat meter to count the heating or cooling energy consumption. > Cooling & heating > Max. outlet temperature up to 65°C by EVI technology High temperature heat pump system for highest COP > Control of up to two heating circles > Affordable solution for hot water domestic Best economical solution for new energy saving or older houses GDH-ProController > Control of up to two heating circels > Bussystem to control up to 8 more additonal controller > Manager with buffer function > Cascade Manager for up to 8 heat pumps > Control up two boilers or electrical heater > Control of solar hot water production Power supply: 5 kW, 7 kW, 12 kW available in 220V/50Hz version Power supply: 16 kW & 24 kW is 380V/50Hz Approval: CE and DIN14511