Air conditioning coil

Cooling and heating equipment are among the most important items in buildings today, and this issue is considered before starting construction and during the design of the building plan. But more important than that is the issue of cost savings as well as electricity and gas consumption, which has caused equipment such as air conditioners to be produced and used in buildings to provide air conditioning. Different types of coils are used in air conditioners and are responsible for heating and cooling. We have provided these materials to fully familiarize you with the air coil, its types, and how it works.

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The role of coils in the air conditioner

Since there has always been a need for different equipment to create optimal cooling and heating, devices called air conditioners have been produced and installed, and used in different commercial and industrial sectors, places, and buildings. Coils are installed in these devices to create hot and cold air, which are produced in different types of hot water coils, cold water coils, water vapor coils, and DX coils. In the following, we will first examine the components of the coil and then the role of the coil in the air conditioner.

Air conditioner coil components

Among the most important things about the parts and members of a coil are the surface and diameter of the coil, the arrangement of the fins, and the number of rows. A coil consists of various parts including flange, fin, fluid inlet collector, coil tubes, and outlet collector. Fins and coil tubes are of different materials, which are selected based on the type of application of the desired type of air conditioner.

fan coil

In air conditioning coils, there is a part called a fin, which consists of several metal plates together. The material of the fin can be aluminum, copper, bluefin or gold fin. Each of these has unique features and their thickness is usually around 100, 120, and 150 microns. The fin is used to increase efficiency and transfer heat as much as possible. Most of the time, the sine wave type is used in fin air conditioners because it has a greater heat transfer brightness, which makes the heat transfer faster and more complete. As we said, fins are thin aluminum metal plates that are placed together. Air fins are generally divided into three categories.

• Fin with a flat and smooth blade
• With a sinusoidal wave blade
• With spiral blades

Coil tubes

As mentioned, to make coils, pipes of different materials are used to pass cold or hot water, which is divided into three categories:

• Copper pipe: Copper pipes are usually used for water cooling and heating as well as steam at low pressure.
• Aluminum tube: this type of tube is mostly used in cold stores and industrial refrigerators.
• Maiman pipe (steel): Steel pipes are produced in such a way that there are no seams in them and they are used for high-pressure steam systems.

Types of air conditioner coils

We mentioned earlier that air conditioner coils differ based on what is flowing through them, which are hot water, cold water, water vapor, and refrigerant (DX). To prepare hot water, cold water, and water vapor and flow it into the coils, we need equipment such as a chiller, boiler, or steam boiler in the engine room, then cold or hot water is sent into the coil using a pump. But the DX type is different and does not need engine room equipment, instead, the refrigerant enters the coils directly, and the cooling process takes place by the flow of the refrigerant in the pipes and the passage of air around the pipe.

The performance of coils in the air conditioner

Air conditioners have different parts such as filters, heating and cooling coils, dampers, and centrifugal fans, among which the role of coils is more important. When heating or cooling, coils use a fin as a heat exchanger for heat exchange, and in fact, it is a means of energy transfer and is not useful on its own.
The way the coils work in the air conditioner is in such a way that first the air enters the air conditioner through the damper valve, and passes through the filters to be cleaned. Then it moves on the coils that contain hot or cold water and becomes cold air or hot air. After that, the centrifugal fan installed on the air conditioner blows fresh air into the rooms through the air channels.
Note that first of all, to choose the right coil for the air conditioner, the dimensions of the fins and enough space for the number of rows of coils should be calculated and considered. Another issue is the amount of ventilation of the air generator, the air channels coming out of the device should be calculated according to engineering methods and using a dactylator and with completely appropriate and correct dimensions (based on the volume and speed of the air passing through each section of the channel and the air outlet valve) to be.

You can also read the article THE BEST BRANDS OF IRANIAN AND FOREIGN AIR CONDITIONERS 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

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