North building of Dalian Shopping Mall of Dashang Group

The object of technology improvement is the central air-conditioning system of the north building of Dalian Shopping Mall. The air-conditioning area is about 60,000m2. The central air-conditioning room is located on the first floor. Under the maximum load, two refrigeration units are operated. After system optimization and adjustment, eight high-efficiency pumps are used. According to the acceptance results, 220,000KWH power can be saved annually.