1.commercial Air source heat pump water heater, 2. Use Special Compressor, 3. Safe, soft,environmental ... it. 3,AISEE has got the patents to make effective heat exchanger to prevent limescale. 4,Unique three core technology, ... unit is packed nicely in a PE bag. 2. spare parts & instruction sealed in the pack. 3. carton with strong ... design is available ,OEM &ODM are available. EVI commercial heat pump