Brief introduction Luxurious and elegant-the indoor unit can be concealde inside the ceiling ,to save apace,to avoid destuction to the indoor layout and facilitate interior decoration. Comfortable and healthy-rapid sensing,accurate temperature adjustment and even airflow distibution;freshaor ontrodced to build a healthy and comfortable environment. Intelligent operation-automatic and 3-rank wind speed configuration;auytomatic adjustment to refrigerating and heating in accordance to the difference between room temperature and set temperature;effective coolair prevention,avoid cooled air blowout when heating and defrosting Convenient installation-the outdoor unit can be installed on the roof,balcony or outdoor platform,the indoor unit has free options for the direction of coolant pipe and drainage pipe with flexible and various modes of instllation,so as to bring more convenirnces to your installa-tion process. Super powerful heat supply (furnished with supported electric heater)-units of heat pump type powerful heat supply,and each model of which are furnished with supported electric heater made of PTC material,asfe and reliable to warm the romm to spring temperature even if in the cold winter. Quiet operation-since the indoor unit is installed inside the ceiling,and connected with the wind mouth through hose,further muting treatment,the room can be extremelt silent during air-conditioning operation.