1. The system has high efficiency, large heat effectively.
2. The system performance is stable, safe and reliable.
3. The convenience of property management, billing dispute.
4. Solved the difficult problem of roof area is not enough.
5. On top of water, water is comfortable.

Hot summer, air-cooled module independent refrigeration and meet the demand of building cooling, solar domestic hot water needs.
The cold winter, the existing day Yang can provide heating heating, with temperature declining, air-cooled module.