设计总说明:中央空调系统由一个或多个冷热源系统和多个空气调节系统组成。采用液体气化制冷的原理为空气调节系统提供所需冷量，用以抵消室内环境的冷负荷；制热系统为空气调节系统提供所需热量，用以抵消室内环境热负荷。

中央空调是一个比较大的概念，它涵盖的行业产品比较广泛，也是一个内涵不断发展扩充的。它既包括起步较早的暖通行业产品，随后起步的制冷行业产品，还有近年来异军突起的家用中央空调。从传统意义上讲，中央空调产品属于工业设备。因而，在市场营销上它具有很强的针对性，是一对一或者是点对点的生产与销售。

随着我国居民生活水平的提高，中央空调产品的使用场所将产生新的变化，开始向产品使用面积的下限扩展。家用中央空调的推出，满足了高密度住宅和别墅住户的需要。由于该类产品将家用空调与中央空调的优点结合起来，省去室外机，美化了小区环境；同时，因其具备良好的经济性能并能减少对环境的污染，因而在未来的中央空调市场中将有较大的发展。

它是指建筑物在建造和使用过程中，人们依照有关法律、法规的规定，采用节能型的建造规划、设计，使用节能型的材料、产品和技术，以提高建造物的保温隔热性能，减少采暖、制冷、照明等能耗，在满足人们对建造舒适性需求（冬季室温在16℃以上，夏季室温在26℃以下）的前提下，达到在建筑物使用过程中，能源利用率得以提高的目的。

包括三个方面：一是建筑物本身节能，即改善围护结构的保温性能，减少围护结构的热损失以及建筑环境的规划设计；二是系统节能，即提高建筑物暖通空调系统的效率，减少设备的能耗，充分发挥能量的效应；三是利用好可再生能源，比如太阳能、风能、沼气、地源热泵、热电联产等节能技术。

关键词：全空气系统，新风，风机盘管。

General description of the design

The central air conditioning system consists of one or more cold and heat sources and multiple air conditioning systems. The principle of liquid gasification refrigeration provides the air conditioning system with the required cooling capacity to counteract the cooling load of the indoor environment; the heating system provides the required heat for the air conditioning system to counteract the heat load of the indoor environment.

Central air conditioning is a relatively large concept, which covers a wide range of industries, and is also an expanding connotation. It includes the products of the HVAC industry which started earlier, followed by the refrigeration industry products, and the domestic central air conditioning that has sprung up in recent years. In the traditional sense, the central air conditioning products belong to industrial equipment. Therefore, in marketing, it has strong pertinence, one to one or point to point production and sales.

With the improvement of the living standard of residents in China, new changes will take place in the use of central air conditioning products, and the lower limit of the usable area of products will be expanded. The introduction of household central air conditioning meets the needs of high-density residential and villas tenants. As this kind of product combines the advantages of home air conditioning and central air conditioning, it saves the outdoor machine and beautifies the environment of the community. At the same time, it will have great development in the future central air conditioning market because of its good economic performance and the ability to reduce the pollution to the environment.

It refers to the construction and use of buildings in the process of construction and use, people in accordance with the relevant laws and regulations, the use of energy-saving construction planning, design, use of energy-saving materials, products and technology, to improve the thermal insulation properties of the construction, reduce heating, refrigeration, lighting and other energy consumption, to meet the comfort of people to build comfort. On the premise of the demand (room temperature above 16 C in winter and below 26 C in summer room temperature), the energy utilization rate can be improved in the process of  building use.