| 摘要 |
To obtain a cooling system of compact design and with redundancy and free cold, heat exchangers in a cooling system are combined such that by said cooling system the inside air is cooled by means of cold liquid or boiling cooling medium in a combined evaporator-air cooler (2) and the outside air cools warm liquid or condensing cooling medium in a combined condensor-liquid cooler (1). Free cold may be utilized when the difference in temperature between inside air and outside air is big enough and the outside air is sufficiently cold. Liquid cooled by the outside air in the combined condenser-liquid cooler (1) and then heated by the warm inside air in the combined evaporator-air cooler (2) will then take care of the entire heat load alone. In other cases, the compressor system can provide the cooling. The free-cooling system can serve as a redundant system for the compressor system when the latter is out of order.
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