Dos and don'ts of Split Duct!

Duct split or channel air conditioner is one of the new entrants in the air conditioning industry, which has grown a lot in the construction industry in the last few years and has decreased the market share of water coolers and single panel splits.
With a brief explanation of Duct Split and its working method, we will examine the reason for its popularity among manufacturers and its problems and limitations. Finally, we end this article with suggestions for greater productivity.
A split duct is the same single-panel split device, the inner part of which is placed in the opening of the channel, but with a high-pressure fan, and through this ventilation fan, the cold air produced from the evaporator or the internal panel of the device enters the air distribution channel inside each unit.
The split duct system is a complete refrigeration cycle and includes a compressor, condenser, and evaporator. As its name suggests (split), this device is a two-piece, its compressor and condenser are placed in outer space and its evaporator is placed in inner space. This device is usually used from a capacity of two tons of refrigeration to five tons of refrigeration, due to the type of EvaporatorDX (Direct Expansion), the cold is produced exactly at the place of use, and there is no waste during the piping between the two units.
Duct splits are usually available in two types (cold only) and (cold and hot), of course, you should not forget that in the (cold and hot) model, the heat produced by the reverse refrigeration cycle is a heat pump device. and they have to consume electricity to produce heat. However, to generate heat, suppliers suggest or predict the installation of a copper or aluminum coil in the air outlet of the indoor unit, which is heated by the hot water of the package or the central engine room and distributes the hot air among the spaces of each unit by the fan. . With this description, the devices (cold and hot) are useful for emergencies or gas cut or the absence of a hot water generator.

Click to view brands, models, and different types, find out the price, and Buy A DUCTED SPLIT.

The reason for the acceptance of duct splits

The independent cost of electricity consumption for each unit is the most important reason for this device to be noticed. On the other hand, due to the lack of a compressor unit for each room, less space is needed for external units compared to single panel splits.

Another case is air pollution in big cities, which has reduced the desire to use water coolers. Housing builders will also have a useful and larger area at the end of the work due to the lack of space allocation for the passage of the vertical channel of water coolers from the upper to the lower floors, which increases the desire to use this system among them. And finally, the higher quality of air conditioning and the greater level of comfort provided to consumers have greatly contributed to the expansion of this device.
But there are also limitations and problems in using these devices. relatively high noise produced by indoor units, lack of temperature control for each of the different spaces and rooms, and more electricity consumption due to the cooling of spaces that are not used at different times of the day and night (living room and living room) at night and (bedroom) ) during the day, the problem of lack of air circulation when the doors of the rooms are closed.

Some practical suggestions to solve the limitations of duct splits

Of course, there are proposals to remove some of these limitations, which will be solved to a large extent with minor costs. To reduce the production of sound, we must pay attention to several points. If it is possible to install the unit in a space away from the bedrooms and living room, there is usually a suitable place for the indoor unit at the entrance of the building. Another case is the use of the return channel, manufacturers usually take the return air from under the device, but installing at least a few meters of the return channel helps greatly in reducing noise. Also, if the air can be received at the height of 30 and 40 cm from the floor, we will have better heating in heating mode.

Another way to reduce the sound level is to use the appropriate cross-section of the channels so that the air passing speed is between 500 and 1000 fpm in the channel, which in addition to reducing the sound, reduces the pressure drop and makes the air distribution in the far vents more suitable. will do.

Another problem raised is the lack of independent temperature control between the spaces of each unit, which can be controlled to a certain extent by designing the correct size of the channel branches and taking into account the distance between the inner tubes, but in the end, the use of mechanical or electric valves and dampers. This will solve the problem.
Regarding the cooling of the spaces that we do not need during the hours of the day and night, it is suggested to use two split duct devices and to control the space of bedrooms and living rooms separately, this will reduce the cost of electricity consumption by about 40%
Another problem is the ventilation of the room when the door is closed, and two solutions are proposed to solve this problem. The first solution is channeling the return air from Herataq, which will be somewhat difficult and expensive to implement, but it is completely effective and extremely practical!
The second way is to use grill nets at the bottom of the doors of each room so that when the door is closed, it does not block the passage of air.
In the end, to save energy consumption, it is suggested to use split ducts with inverters as much as possible. Also, pay attention to the distance between the indoor and outdoor unit installation, so that it is not too much! Another thing that should be considered is the use of pre-insulated channels or the insulation of air distribution channels.

You can also read the article DUCTED SPLIT EXPLOSION for more information.

Final speech

The specialized collection (Damatajhiz) (the first and most reliable authority in the country in the field of building facilities equipment and all air conditioning devices), offers you all kinds of sand filters and hundreds of other products, guaranteeing the originality of the product, valid warranty, and reasonable price. In addition, if you have any questions about choosing and comparing the brands of this product, you can get free advice from the heating equipment experts.

In Iran, the first and most famous specialized group in the field of building installation equipment, air conditioners, and all equipment for swimming pools, saunas, and jacuzzis since 2004, DamaTajhiz is a specialized group. Refer to the time of this group. For more information, you can get advice from the experts of DamaTajhiz Engineering and Production Company by calling 021-88822550.

We are waiting for your call and look forward to meeting you at the DAMATAJHIZ group

By sharing the above article on social networks, let your friends know about its important content.