1.commercial Air source heat pump water heater, 2. Use Special Compressor, 3. Safe, soft,environmental,energy saving. Features 1,We use Mitsubishi compressor and the function is strong and stable! 2,AISEE use Japanese electronic control technology.Only three to five enterprise can do it. 3,AISEE has got the patents to make effective heat exchanger to prevent limescale. 4,Unique three core ...