The solar central water heating system in Sun Yat-sen University, in which the first phase, the second phase and the third phase are designed and installed by our company through winning bidding, supplying hot water of 600 tons each day, the system adopted real-time and remote supervision for the water heating-up time, water temperature, water volume and easy for trouble-shooting. Currently, it is the up-to-date and the highest automatization system in Guangdong Province.