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How to choose a suitable heating terminal fan coil unit, these three problems must be considered.

Views : 1024
Author : sherry
Update time : 2020-11-13 14:46:48
Fan coil is one of the terminal devices of air conditioning system, which is composed of small fan, motor and coil (air heat exchanger), and is widely used in air heating engineering. Fan coil units are divided according to structure, installation and water inlet orientation, and there are several types of fan coil units. Which kind of fan coil unit is good for air heating? In order to help you make a better choice, let's take a look at it.
1.according to the heating capacity to choose fan coil unit
1)according to the circulating air volume in the whole room. What is the circulating air volume? List the area of the room, the number of air changes and the floor height of the room, and find the product of them to be the circulating air volume of the whole room. According to the size of the circulating air volume, choose the fan coil unit suitable for the air volume, which is called "adapting to local conditions."
2)It is a relatively simple estimation method. According to the actual situation of the house, the total heat load required for heating in the house is calculated, and the fan coil unit model can be determined by comparing the total heat load of the room with the air volume when the fan coil unit exits at high speed. The second estimation method is simpler and more convenient, and is suitable for most occasions. However, if there are some areas with special requirements for temperature, such as laboratories, farms, etc., it is recommended to adopt the first scheme of circulating air volume to design. This scheme is more rigorous, and the control of air outlet and overall temperature is more stable
2.Select the fan coil unit according to the "reserved amount"
In industrial manufacturing and construction engineering, there is a concept of "reserve". That is, when selecting equipment, a certain amount of surplus must be reserved to ensure that the equipment can meet the needs of this environment. For example, transformers in substations, cables in residential buildings and so on, and fan coil units are no exception. Although choosing a fan coil with larger capacity will indirectly lead to more heat demand, increase the power consumption of air energy heat pump and the overall cost investment of equipment, in heating, achieving the effect is the most important purpose. If we choose the model exactly according to the calculated theoretical value, then the complex and changeable actual situation, such as the fluctuation of air temperature, the opening of windows, the change of wind direction and so on, will affect the heating effect of the wind disk. May lead to the overall heating effect is not up to standard, causing dissatisfaction of residents. Therefore, it is the last word to choose the larger equipment at the expense of cost to ensure a good heating experience.
3.Choose the type of fan coil by installation method
1)Horizontal concealed fan coil, expressed by FP-WA, is the most used coil in office buildings, hotels, hotels and other places. Of course, it can also be installed in our home. Because the horizontal concealed fan coil unit is hoisted inside the ceiling, only the air supply outlet and the air return outlet are exposed outside. Therefore, there are two conditions before choosing this fan coil. One is the height of the building, the thickness of the fan coil is about 230mm, and the length of the suspender and shock absorber should be added, so it is necessary to have enough height. Second, you confirm that you want to hang the ceiling, otherwise exposing these equipment and accessories will affect the beauty.
2)The horizontal open-mounted fan coil unit is expressed by FP-WM. Compared with the horizontal concealed fan coil unit, this fan coil unit is much simpler. The outer shell is made of steel plate sprayed with plastic, and it is equipped with grille air supply louver, which can be attached to the ceiling. Many renovation projects or families, small shops, small hotels, etc. choose this coil. The price is slightly more expensive than the concealed coil, but the cost of saving tuyere, decoration, etc.
3)Vertical concealed fan coil units, indicated by FP-LA, are placed on the ground beside the wall, under the window sill, that is, where radiators are usually installed, and in office or home, they can be installed inside in combination with decoration, leaving only the tuyere. Workshops, warehouses and other places do not want to be renovated any more, but they can be put on the ground directly, but they need to be equipped with air supply louvers.
4)Vertical open-mounted fan coil units, which are indicated by FP-LM, are also placed directly on the ground. If they are close to the wall, they can choose inclined air outlet, and if they are not close to the wall, they can also choose upper air outlet. There is a three-speed switch on them, and you can also refit them into temperature controllers by yourself, which is the easiest to install. The height is about 650mm and the thickness is about 230mm, which does not occupy much space.
5)Card-type open-mounted fan coil, which is expressed by FP-KM, is installed in the ceiling, also called smallpox machine or embedded fan coil, and is often used in the lobby of banks. Uniform air outlet, beautiful appearance and convenient operation. However, the card fan coil can be divided into fluorine machine and water machine. The fluorine machine is mostly used in multi-line one-drag multi-system while the water machine, like other fan coils, can be used as air conditioning terminal and heating equipment. The price is the highest among all fan coils. But it's worth the price.
6)Wall-mounted fan coil unit, expressed by FP-BG, is also called wall-mounted water temperature air conditioner and water air conditioner. This kind of fan coil may be the earliest coil separated from the central air conditioning system. Usually there are families, shops and villas with yards where wells can be drilled, which can be directly cooled by groundwater and heated by boiler hot water in winter. Because it is similar to the internal unit of domestic air conditioner, it can also be selected according to the cooling units such as 1 horse, 1.5 horse and 2 horse. The shell is beautiful and light.
7) Vertical cabinet fan coil, denoted by FP-LZ, has similar appearance to household cabinet and similar usage to wall-mounted fan coil.

 
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