Air-cooled chiller is centralized air conditioning unit based on air as the cold source and water as the cooling medium. The air-cooled chiller dispense with cooling tower, cooling water pump, and the corresponding cooling pipe system and many other auxiliary parts. The system structure is simple, with little installation space, convenient maintenance and energy-saving, especially suitable to where is short of water. It is flexible to combine with the fan coil unit, air handling unit and other end equipment. It is easy to control and widely used in the shopping center, hospital, hotels, apartment housing, factory and office building, etc.