Air Conditioning system is also an important system in air conditioning, its main function is to complete the role of air purification, mainly by the three main components, respectively, pipe, end device and air treatment device. The main work process is as follows: First, the target air is filtered to clean air, then it is transported to clean water through an air duct, and then it is cooled by heat exchange with the frozen water. After the heat exchange is completed, the air is processed into the required air, then through the air supply state to the indoor air-conditioning device, thus meeting the user for indoor environmental indicators (temperature, humidity) and so on. As can be seen, the cooling process of the air conditioning is a continuous transfer of heat from the interior to the exterior by using the principle of heat exchange. In the air conditioning, the water cycle and the water cycle are primarily responsible for heat transfer, constantly transferring heat from the inside to the outside. Fan Coil system equipment for indoor cooling and heat transfer, and direct contact with the indoor environment, so that the indoor temperature is maintained in a certain range.