| 摘要 |
A cooling unit is provided to cool supplied air and liquid refrigerant by being connected to a refrigerant circulation line of an air conditioner, thereby preventing increase of an air flow rate and improving cooling efficiency of the air conditioner. A cooling unit includes three compressors and three heat exchangers, wherein one(1) of the compressors and one(3) of the heat exchangers cool supplied air and the others(2,4) are coupled with a refrigerant circulation/cooling element such as an air conditioner(7) of a room space for cooling liquid refrigerant circulating through a pipe network of the air conditioner. Condensation heat emitted during cooling operation is removed by evaporator/condenser coils(5).
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