... Adopts world famous parts 3.On line system 4.R410a Air Source heat pumpModel: AW09,AW09B,AW10,AW10B,AW12,AW12B, ... DAIKIN ScrollHITACHI scrollIndoor side heat exchanger Brazed plate heat exchangerNominal flow heating mediuml/s0.450.620.520.670.761.03Internal ... 20% than than double pipes or other types ) , repair easily;Air exchanger (Fan coil ) with hydrophilic coating ,higher coefficient of heat ...