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Devices that blow hot or cold when necessary according to the water in them are called fan coils. In the device, which blows with the help of a fan, the fluid that enters passes through the capillary pipes and blows with the fan located just behind. What is a fan coil? The answer to the question is the fan coil unit is the last device used to heat or cool a living space without connecting it to the duct system. Indoor air moves on the coil, warming and cooling the air without pushing the living space out.
A Perfect Comfort
If the fluid inside is hot, blowing is done hot, if it is cold, blowing is done cold. It is processed in two types, 2 pipes and 4 pipes. It is the type with a single coil on the 2-pipe fan coil, it is preferred because it is cheap. It can only do one of the heating or cooling processes, especially during the heat transition period, it causes great difficulties in the operation. The 4-pipe fan coil, on the other hand, is the type with 2 coils on it, it performs both heating and cooling at the same time. It provides excellent comfort, especially during transition periods, and the transition is quite easy.
Most Distinctive Features
- Independent control of each room is among the most distinctive features of fan coil systems.
- Control is generally done using room thermostats
- It has the opportunity to adjust the speed of its motor, thus providing convenience in capacity control.
- Frequency-controlled circulation pump use saves energy
- Pipe insulation is much simpler than duct insulation.
- In the fan coil system, there are no leaks in the channels.
- Heat losses in ducts due to large surface areas are not experienced in fan coil systems.
- Easier to regulate piping system
- There is no need for large shaft cutouts in the fan coil system.
- Air Passage Between Rooms
There is no need for ventilation in a conventional fan coil system, heating and cooling can be done. In order to eliminate this shortcoming, 2 applications are valid in the system. With the mixed device placed on the outer wall, the air is taken from the outside directly by each unit. With a central ducted ventilation system, the fresh air system required for the system is added. The name given to this system is the primary air fan coil system, the systems are both air and water, and the humidity control performance is low. In both systems, the air circulation in the room belongs only to the room. Therefore, there are no easy-to-pass problems such as air passage between rooms, odor and smoke.
How to Select a Fan coil?
When choosing a fan coil, first of all, it is necessary to pay attention to the easy removal feature of the filters. In cassette type devices, it should be preferred that the filter can be changed without removing it. In addition, the condensation pans should be checked against clogging at certain intervals, this is recommended to prevent bacterial growth. It is a disadvantage that the devices that need to be maintained are in the usage area, so maintenance should be done by trained personnel out of working hours. In ceiling type models, care should be taken not to pollute the air when changing the filter. If the device is placed in front of the glass, it should be placed in such a way that it does not disturb its surroundings and the air blowing direction should be designed accordingly. Angle bladed linear grilles are used to direct air in concealed floor fan coil types.
