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In marketplaces, railway stations and other large buildings, DFS series of industrial fans can promote air circulation and improve heat exchange efficiency of air-conditionings. It is usually necessary to set the temperature of the air conditioning at about 26˚C in hot summer days if you want to enjoy the cool feeling; however, it is shown by various data that power saving by 20% can be achieved by increasing the temperature of the air-conditioning by 2˚C. After installing large fans, cool feeling can be created when the temperature of the air-conditioning is set at about 30˚. Therefore, energy saving can be achieved by more than 40% by using large fans and central air-conditioning together.
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