Air source heat pump KAW series air/water heat pump is designed for those users who eant to replace the traditional heating ways, and seek for cheap and easy installation, or supplement to the exiting heating boiler. KAW series heat pump is an ideal way to be installed in a house not large, or drilling of the holes into ground outside your house is not allowed or impossible. Feature: Large LED diplay control panel, easily read and operation Scroll compressor Compact in size with a built-in water tank up to 180l Soft starter Electrical additional heating up to 9kw Timer setting Heating with temperature compensation curve by outdoor sensor Water temperature to 65oC Visible alarming signal 220v,singke phase available