Fan coil unit is referred to as fan coil unit. It is one of the end devices of the air-conditioning system and consists of small fans, motors and coils (air heat exchangers).

Horizontal units are mostly hidden in the ceiling, and there are two air supply methods: the upper side air supply box ceiling supplies downward air. If the side delivery method is adopted, the fan coil unit with lower static pressure can be selected, and the outlet of the unit is directly connected to the double-layer louver; Connect several diffusers to supply air under the pipe. There are two ways for the return air of the horizontal concealed unit: set louvers or other forms of return air outlet and air outlet filter on the ceiling, and connect it to the return air box of the unit with an air duct, without an air duct. Indoor air enters the ceiling and is drawn in by units placed on the ceiling. In addition, attention should be paid to the noise control requirements of the room when selecting coils. Function function (1) The coil should create an indoor air environment suitable for human comfort. Since the indoor air environment plays a very important role in the comfort of the human body, creating the indoor air environment required for the comfort of the human body has become the primary task of the air conditioner. If the indoor air temperature is required to be 24N±11Y and the relative humidity is 55%±15%, then the air conditioner must not only maintain the temperature base of 24F and the humidity base of 55%, but also ensure the temperature accuracy of 11Y and the humidity accuracy of *5% (that is, the allowable fluctuation range of temperature and humidity) and the high freshness and cleanliness of the fan coil.

This low level of rapid growth is not optimistic. The foreign coil manufacturing industry represented by the horizontal concealed fan coil unit in the 20th century has successively completed product upgrades and launched a new generation of products. At that time, China's air-conditioning industry was intoxicated by the fact that domestic coils were close to foreign products in terms of cooling capacity, noise and other isolated parameters, while ignoring the real gap in comprehensive performance and use effects. As a result, this product update failed to cause any repercussions in China's air-conditioning industry. In fact, the new generation of foreign coil units are ahead of ours in terms of performance, variety and air conditioning. Fan coil units are ideal end products for central air conditioners, and are widely used in hotels, office buildings, hospitals, commercial residences and scientific research institutions. It is understood that there are many types of coils to meet the design and selection of different occasions, such as horizontal concealed fan coils (with bellows), horizontal exposed coils, vertical concealed coils, vertical exposed coils, clamps Type double outlet coil, cassette type four outlet coil, wall-mounted coil, etc.