What is the four-pipe air conditioner Under what circumstances

What is the four-pipe air conditioner Under what circumstances

Four-pipe air-conditioning means that the air-conditioning box is equipped with cold coils and hot coils at the same time. Each group of coils is fed one time, a total of four, so it is called four-pipe. Two sets of water pipes are connected to cold water and hot water respectively, that is, cooling and heating can be switched at any time throughout the year, which can realize heating in some rooms while cooling in other rooms. So it has high standards and high costs

Advantages of four control systems:

　　①Each terminal device can freely choose the operating mode of heating or cooling at any time, without mutual interference, and the air-conditioned areas served can independently control temperature and other parameters;

　　②Save energy, all energy consumption in the system can be provided according to the requirements of the end, unlike the three-pipe system, there is no problem of cold and heat offset.

　　The two-pipe air-conditioning box is just a set of coils, one in one, cold water in summer and hot water in winter. Such a system makes the entire area only available for cooling or heating at the same time. Compared with the four pipes, it saves a set of water system, so its standard is relatively low, and the cost is also low.

　　 Disadvantages of the four control system:

　　① Large investment, relatively complicated operation and management

　　②As there are more pipelines, the system design becomes more complicated, and the pipeline takes up a lot of space.

　　 Due to these shortcomings, the use of this system is subject to some restrictions.