A solar-absorption refrigerating system using the solar energy as the driving power is an energy efficiency system, which is also friendly to the environment. However, as the solar radiation varies with the season, the day and night and the climate, the solar energy supplying to the system is unsteady, which affects the security and the stability of the system. Here a typical solar-absorption refrigerating system is put forward to. Then the operating conditions in summer and their operating performance are discussed. Different operating modes are chosen according to the cooling loads and the weather. Automatic control system is used to keep the whole system operating steadily. Finally a survey is carried out. The operating record indicates that it is reasonable to adopt different operating mode in different case. This will provide the reference for the design and operation management of the solar-absorption refrigerating system.

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