Guide to choosing and buying split air conditioners

The air conditioner is one of the most common home air conditioning equipment, which is used to create good air in many residential, office, commercial, etc. places. The proper efficiency and good performance of air conditioners have caused many people to purchase and use this equipment throughout the year, especially in the summer season.
In order to choose a gas air conditioner, it is necessary to consider points and parameters so that the purchased device, in terms of type, cooling capacity, the possibility of installation, etc., fits the space you want. In the guide article for choosing and buying gas and split air conditioners, the capacity calculation table, the difference between normal and inverter air conditioners, the important points of selection, the maximum allowed distance between the inner and outer panels, how to recognize the authenticity and warranty of the product, etc. are described. Please stay with us in the rest of the article to learn more about the difference between gas and split air conditioners, as well as how to choose and buy this product.

The difference between an air conditioner and a split

A significant number of cyberspace users have requested that we post an article about the difference between air conditioners and splits in the blog and the pages of Damatajhiz's specialized collection on social networks. Thanks to the opinion of the regular companions of Damatajhiz, below are the details to answer your dear questions.

Air conditioner: As you know, an air conditioner is a device that is used to cool the ambient temperature (with the possibility of heating). The air conditioner also helps to eliminate suspended particles in the air and absorb excess moisture in the air in summer.
The working system of the gas air conditioner is such that, with the continuous flow of refrigerant gas, heat is absorbed from inside the room and transferred to the outside. This operation is performed with the help of four main parts in the cooling cycle of the air conditioner, condenser, evaporator (internal panel), compressor, and expansion valve.
Split: All air conditioners follow the thermodynamic refrigeration cycle method to create optimal air in the environment, and the operation of split air conditioners (two-piece air conditioners) is completely similar to portable and window air conditioners. In fact, a split is a model of an air conditioner that is produced in two pieces. Splits have two internal and external units, which are called the EVAPORATOR and CONDENSER. The evaporator is installed as a stylish panel in the room and is connected to the external unit or condenser by copper pipes that contain refrigerant gas. The advantage of splits over other air conditioners is higher capacity power, very low noise (due to installing the condenser outside the environment), dual-season capability (creating cooling and heating), etc., which has increased consumer acceptance of this equipment. Is.

Types of air conditioners

Air conditioners are divided into three main categories as follows.

Window-type air conditioner

The window air conditioner is the simplest and oldest type of air conditioner that is designed as one piece, that is, the compressor and panel are located together in one box. These types of air conditioners have an integrated design and are often installed on the frame added to the window of the room (corner number 3), which is why they are called window air conditioners. Installing a window air conditioner is very easy, you just need to determine and prepare its location and connect the plug of the device to the electrical outlet. Window air conditioners are produced in capacities of 9000, 12000, 18000 and 24000, they have a little noise and their best use is in places with an area of ​​less than 50 square meters.

Portable air conditioner

A portable air conditioner, like a window air conditioner, contains all the parts and is a fabric, and the reason for the name of these air conditioners is that they are portable and are not attached to the wall or ceiling, and in some cases, wheels They are equipped, which makes it easier to move them. But in order to use them, it must be possible to transfer hot air from the 15 cm diameter hose pipe behind the device to the open air. Small portable air conditioners are suitable for small environments (up to 12 square meters) such as bedrooms, medium portable air conditioners are suitable for commercial offices and larger rooms (up to 15 square meters). Portable air conditioners are placed on the ground and turning them on does not require special skills and is done by connecting the electricity to it and directing the pipe that transfers the heat of the device to the burner. Portable air conditioners are made in two types, single-pipe and double-pipe. In addition to removing heat from the environment, double pipes also replace fresh air and compared to single pipes, they have a higher price, and consume less energy.

Split or double air conditioner

Two-piece air conditioners are more commonly known as a split. These coolers consist of an internal unit and an external unit. The external unit consists of a compressor and a condenser that is installed outside the building. The indoor unit that includes the evaporation unit (evaporator) is placed inside the building. These two units are connected to each other by two copper pipes. Due to the higher efficiency of this type of air conditioner and the possibility of providing cooling and heating and low noise (because the compressor is installed outside the environment) etc., this type of air conditioner can be introduced as the most popular. Splits are produced and supplied in wall capacities of 9000 to 32000 and standing capacities of 45000 to 90000.

The difference between a normal air conditioner and an inverter

Modern air conditioners use variable-speed motor technology called an inverter, which results in better control of temperature and electric current. Only by adjusting the speed of the compressor, the flow rate of the refrigerant, the capacity of the air conditioner, and the room temperature can be carefully controlled, while the operation of the compressor in normal air conditioners is only on and off, and the motor speed cannot be adjusted, that is, the compressor of the air conditioner Normal air conditioners are either stopped or working at full power, which reduces the life of the device and consumes more electrical energy each time the cooler is started.

The operation of the compressor of normal air conditioners is that, after starting by receiving a higher current intensity (ampere = A) and 100% power, it starts its activity and after providing the performance, with a manual command or cooler temperature sensor. It is disabled and stops. When the compressor is on, even though the device provides good cooling, its energy consumption is high, and when the compressor is disabled, the cooling of the air in the room decreases. But the technology used in the new generation low-consumption air conditioners, which is called an inverter, has created the ability for the compressor to have the ability to adjust the speed and variable performance. This makes the compressor continue to work at variable speeds until you turn off the device and considering that it does not use 100% of its power during operation and does not turn off, the cooling quality of the device remains somewhat constant. The energy consumption (electricity) of the air conditioner is also optimized.

Damatajhiz; The best prices and brands of building installation equipment

Approximate calculation table of air conditioner and split capacity

For the approximate calculation of the air conditioner and split capacity required (in weather conditions like Tehran, Mashhad, Karaj, Isfahan, Erbil, Kabul, Sulaymaniyah, Halba, and other cities with similar weather in summer ) in the middle floors of the building, about 400 to 600 (BTU) per square meter, and in the floors above which there is a roof, due to direct radiation Sunlight on the roof is considered between 600 and 800 (BTU) per square meter of infrastructure. For example, for a 12-meter room split 9000, for a 17-meter split 12000, for a 25-meter split 18000, for a 40-meter split hall 24000, and for a 45-meter hall split 32000 can be appropriate. You can also refer to the table below for the approximate calculation and determination of the capacity of the split or air conditioner for more convenience and determine the capacity of your air conditioner and split according to the conditions and basics of the mentioned calculations. The table below shows the approximate ratio of the capacity of the air conditioner to the size of the environment in moderate weather.

What is the maximum distance between the internal unit and the external unit of the splits?

Observing the standard distance of the condenser and evaporator in splits is one of the factors affecting the performance and efficiency of the device. In the following, the maximum length of copper pipes connecting the internal unit and the external unit of the splits in different capacities is described. It should be mentioned, the capacity of the air conditioner and split is stated in terms of BTU (British Thermal Unit), for example; Split 18000 has a capacity of 18000 BTU.

• BTU 9000 = maximum distance in height of 3 meters, and maximum distance in length of 5 meters
• BTU 12000 = maximum distance in height of 5 meters, and maximum distance in length of 8 meters
• BTU 18000 = maximum distance in height of 7 meters, and maximum distance in length of 10 meters
• BTU 24000 = maximum distance in height of 8 meters, and maximum distance in length of 12 meters
• BTU 30,000 = maximum distance in height of 10 meters, and maximum distance in length of 15 meters

Important note: As mentioned, the distance between the internal unit and the external unit of the splits must be in accordance with the capacity of the device. Failure to comply with the standard distance can affect the reduction of split cooling performance.

Distinguishing the original air conditioner

Among the ways to identify fake air conditioners, the following can be mentioned.

Check product ID

One of the sure ways to identify non-trafficked goods is to have a product ID. To inquire about the ID of each product, you should refer to the website of the Ministry of Industry, Mines and Trade.

Checking the electrical board of the external panel

In order to easily distinguish the original air conditioner from a fake one, you should ask the seller to show you the electrical board of the external panel. This board is located in the compressor and condenser section. It is necessary to know that fake air conditioners do not have boards or simple and basic boards, while original air conditioners have large and high-quality boards.

Request for the introduction of a valid after-sales service representative

Ask the seller to introduce you to a well-known and reliable company in order to receive after-sales service. If he refuses to do this or does not introduce a reliable warranty company, you should doubt the originality of the air conditioner you intend to buy!
To get comprehensive information about the identification of original and fake air conditioners, you can read the article on how to recognize fake products in the blog of Damatajhiz specialized collection.

Click to view brands, models, and different types, find out the price, and buy a split ac unit.

Important points when choosing and buying an air conditioner

In order to choose and buy a suitable air conditioner, first, the dimensions and area of ​​the desired environment should be measured so that there is no mistake in choosing the cooling capacity (BTU) of the air conditioner. Because if the cooling capacity of the purchased gas or split air conditioner is less than the cooling capacity required by the environment, the device cannot have good efficiency and will not be effective in reducing the temperature of the environment when the warranty company does not guarantee it for that environment. And if, on the contrary, the cooling capacity of the air conditioner is more than the amount required by the environment, the purchase cost and the cost that must be paid for the consumption of electrical energy (electricity) of the device will increase. In the following, other important parameters regarding the selection of air conditioners and splits are mentioned.

Electricity required

If the electricity meter of your unit is 25 amps, the total amperage consumption of the split or air conditioner you choose should not be more than 20 amps. It should be noted that the amperage provided in the power consumption of the splits is the starting and initial ampere, which after the compressor starts working, usually the required electric current will be about 30% less than the starting ampere.
If you divide the BTU value of the cooler by 2000. The obtained number is the amount of current consumed by the air conditioner in terms of amperes. This means that a 24,000-gas air conditioner needs about 12 amps of electricity during start-up and every initial start (if there is no inverter). Of course, today most of the residential or office units have a 32 amp electricity meter, and the electricity company has not assigned a 25 amp meter to the units for years.

compressor type (engine)

Paying attention to the normal type, or whether the device's compressor function is the inverter, is one of the important parameters in choosing and buying a gas cooler. Normal air conditioners often use reciprocating compressors without the ability to adjust their speed, but in modern air conditioners and splits, rotary compressors are used, which consume less energy than reciprocating compressors. They are very quiet and can be changed easily. Air conditioners that use variable-speed motor technology are called inverters.

Energy label

As you know, all devices that work with electrical energy must have energy. This label indicates the energy consumption and efficiency of the device. The rating of the energy consumption label usually starts with English letters from A, and the next categories are B, C, etc. The closer the device's energy consumption indicator is to A, A+, or A++, it indicates that the device has better efficiency and less energy consumption.

How to effectively reduce the electricity consumption of air conditioners

If you want to use different types of gas and split air conditioners, it is necessary to pay attention to the three most important factors that will effectively reduce the device's electricity consumption, in order of importance, as described below.

1. Set the device's cooling temperature to 25 degrees Celsius and believe me, 24 or 25 degrees is the right temperature to create a cool feeling for residents.
2. Installing the internal panel of wall splits at a height of 2.5 meters from the floor and 50 cm from the ceiling (due to the accumulation of heat under the ceiling). This prevents the waste of electrical energy to cool the air under the roof (at height).
3. Using different types of splits with inverters (variable speed) which are effective in reducing electricity consumption according to the advertisements of the manufacturing companies.

final word

As the first and most reliable source for buying construction equipment and all air conditioners, Damatajhiz specialized group has been operating in this field since 2013 with a brilliant history and has 3 valid business licenses, and all its products are guaranteed to be original goods and services. Provides reliable after-sales service and warranty. You can refer to the site of this collection to see the types and brands, to know the updated prices of all products, and to buy all types of air conditioners. For more information, you can get advice from the experts of Damatajhiz Engineering and Manufacturing Company by dialing: 021-88822550.

Looking forward to calling and eager to meet you in the Specialized Collection of Damatajhiz

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