中央空调系统由冷热源系统和空气调节系统组成。采用液体汽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用以抵消室内环境热负荷的热量。伴随社会的不断前进与发展，空调被应用于各种建筑物中，包括影院，商场，教师，办公室等。这种对空调大量的需求量使我国的能源消耗越来越大，针对这种过度的能源消耗应采取相应的解决措施。安装空调新风系统不仅可以改善空调的工作效率，也可以节省能源的消耗，是一举两得的处理方式。

The central air conditioning system is composed of a cold and heat source system and an air conditioning system. The principle of liquid vaporization refrigeration is used to provide the required cooling capacity for air conditioning system to counteract the cooling load of indoor environment, and the heating system provides heat for the air conditioning system to counteract the heat load of indoor environment. With the continuous progress and development of the society, air conditioning is applied to various buildings, including theaters, shopping malls, teachers, and offices. The large amount of demand for air conditioning makes the energy consumption of our country more and more large, so the corresponding measures should be taken to solve this excessive energy consumption. The installation of a new air conditioning system can not only improve the efficiency of the air conditioning, but also save energy consumption. It is a way of handling two birds with one stone.