求翻译：1-5层中央空调工程设计,总面积16849.01㎡。一至三层为大商场，四层左边为KTV，右边为客房，五层为办公楼。空调风系统：空调设计以竖向分层，横向按防火分区设置空调系统为原则，同时根据建筑使用功能，本工程1~3层采用吊顶风柜加新风系统，4~5层采用多联机式的新风机。空调水系统：立管系统均采用双管异程式系统，水平干管采用同程式系统。冷冻水由机房直接供给。是什么意思？

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1 - 5 storey central air-conditioning engineering design, with a total area is 849.01 M quality. For one to layer 3, layer 4 major shopping malls to the left and right with KTV rooms, 5 floors are office buildings. Air-conditioning system, air-conditioned to the layered, vertical to the horizontal p

1-5 central air conditioning engineering design, total area 16849.01㎡.One to three is the big market, left side of four is KTV, right side is the guest room, five are the office buildings.Air conditioning wind system: The air conditioning design take the vertical lamination, crosswise according to t

1-5 central air conditioning engineering design, a total area of 16849.01 square meters. One to three layers for large shopping centres, four left for KTV, for rooms on the right side, five-story office building. Air conditioning system: vertical stratification of air conditioning design, horizontal

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