家用中央空调采用的是一台主机通过氟路管道组成冷热系统拖动多台末端设备（室内机）。
Household central air conditioning system uses a main engine to drive several terminal equipments (indoor units) through a fluorine pipeline to form a cooling and heating system.
大型中央空调的含义是由一台或多台主机通过风道过风或冷热水管接多个末端设备（风机盘管）的方式来控制不同的房间，以达到室内空气调节目的的空调。
The meaning of large central air conditioning is that one or more mainframes control different rooms through air passage or cold and hot water pipes connected with multiple terminal equipment (fan coil units) in order to achieve the purpose of indoor air conditioning.
采用风管送风方式，用一台或多台主机控制多个不同房间并且引入新风，有效改善室内空气的质量，预防空调病的发生。中央空调的最突出特点是噪音低及舒适的居住环境，其次从审美观点和最佳空间利用上，用中央空调使室内装饰灵活，更容易实现各种装饰效果。
Using air duct to supply air, one or more main machines to control different rooms and introduce fresh air, effectively improve the quality of indoor air and prevent the occurrence of air conditioning diseases. The most prominent feature of central air conditioning is low noise and comfortable living environment. Secondly, from the aesthetic point of view and the best use of space, central air conditioning makes interior decoration flexible and easier to achieve various decorative effect