Inverter Split AC Unit or Evaporative cooler? | DamaTajhiz

You may have heard this statement in the advertisements for air conditioners, or if you decide to buy one, you will hear that: "Inverter air conditioners consume less electricity than conventional air conditioners." Or in the pessimistic mode, "the electricity consumption of gas coolers is several times the electricity consumption of water coolers."
The degree of accuracy of the above content is a topic that we intend to analyze in the following to determine the reality of the impact of inverters in reducing the cost of electricity consumed by each unit.

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What are the most important points in choosing inverter air conditioners and reducing electricity consumption?

Before buying air conditioners, should you know what points are necessary to choose the right air conditioner according to your conditions?

• As you know, the main reason for reducing the amount of energy consumption in inverter air conditioners is the gradual increase in engine speed (compressor), so it is better to choose air conditioners and splits that have an inverter or energy consumption level A or B.
• Another important thing about air conditioners is that the electricity consumption of air conditioners is directly related to the capacity of the air conditioners, so as the capacity of the air conditioners increases, the amount of electricity they consume also increases.
• If you live on the top floor of the building, due to the sunlight in the summer and heat transfer to the unit under the roof, you must have between 600 and 800 BTU cooling capacity per square meter of room or hall area. Consider, but if you live on the middle floors of the building, you should consider about 400 to 600 (BTU) cooling capacity per square meter for your air conditioner and split. For example, a living room with an area of ​​25 meters located on the middle floor of the building needs a 12000 BTU split with a power consumption of 0.8 KW.
• If you are using a water cooler and one of the rooms in the building is not cooled enough due to improper and incorrect ducting, you can close the duct valve of the same room, instead of installing an air conditioner or a suitable split in the room. Take action there.
• You may have heard this saying many times through the advertisements of inverter air conditioner importers that gas coolers will have a 60% reduction in electricity consumption compared to other gas coolers, but the truth of this issue has not been proven and it is not even logical because in July And in August, when the air temperature reaches 40 degrees, its cooler and compressor will be working with maximum power and permanently to provide the desired and desirable temperature of 24 degrees, and this question arises that the amount of reduction in electricity consumption is really due to the conversion of electricity Urban alternating to DC power flow and slow start, compressor, cooler, inverter motor speed can be up to 60%?
• If the electricity meter of your building unit is 25 amperes, the total amperage consumption of the air conditioner and your chosen split should not be more than 20 amperes. Of course, keep in mind that the amperage provided in the electricity consumption of gas and split air conditioners is the starting and initial ampere, and after starting, usually, the required electric current will be 30% less than the starting amperage.
• It must have happened to you that you know which brand or brand is suitable to choose among the types available in the market, but it is not possible to say exactly which one is better because the devices all have the same structure and parts and are based on their capacity and how many panels they have, the range of products It will be different. But the best choice is air conditioners or splits that provide good after-sales services and are more popular in this field.

How to install air conditioners and their effect on reducing electricity consumption

• As you know, the cool air of the splits flows from the inner panel to the opposite side, so the inner panel should be installed right where it is in front of your sitting place or other family members because the air throw length of the splits is between 5 and 15 depending on the capacity and model. meters.
• Considering that the accumulation of hot air is more under the roof, it is better to install the inner panel of the splits lower than the roof. Many installers place the internal panel only 10 cm away from the ceiling, but the most appropriate distance to install the split internal panel from the ceiling is 40 to 50 cm to increase the flow of cool air in the environment.
• Note: In stores, restaurants, and spaces whose ceiling-to-floor height is more than 2.8 meters, the internal panel can be installed at a height of 2 meters from the floor of the desired location.

How can we reduce the electricity consumption of the air conditioner?

• If you want to use air conditioners and split air conditioners, the cost of your electricity consumption is not too high and if you want to benefit from the cool air, you should set the temperature of your air conditioner to 26 degrees Celsius. Its electricity consumption is only between 15 and 30 watts. Most of the time, the compressor of the device will be off.
• It is recommended that if the windows of your building are facing west or east, to prevent heat from entering the building, use double-glazed windows or anti-UV coatings on the window surfaces to prevent heat radiation from entering the building. Avoid summer as well as cold radiation in winter.
• The best choice for building windows is to use UPVC windows with anti-reflective and double-glazed windows because these windows prevent the penetration of hot and cold air and even noise and dust into the building.
• The use of low-consumption lamps will have a significant effect in reducing the heat of the building and will reduce the electricity consumption during the operation of the air conditioner and split. Therefore, if you use high-consumption lamps, it is better to replace them with low-consumption lamps as soon as possible.
• Do not use household appliances such as gas stoves, irons, and other high-consumption appliances that cause heat in the home between 7 and 10 p.m. to reduce the working time of your air conditioner and split and reduce electricity consumption. give
• Using a canopy on the outer panel will result in better efficiency of the device's condenser and reduce its electricity consumption, which will result in heat exchange and cooling of the cooler gas. Also, the outer panel should be installed in such a way that the possibility of free air flow behind it is easily provided.

• If the insulation of the connecting pipes outside the building is destroyed, the split will lose some of the coolness of the refrigerant gas, so it is necessary to repair the insulation of the connecting pipes annually.
• Be sure to ask the installer to check the amount of gas needed by the cooler during the annual service and make sure that the surface of the fins and coils of the external condenser is clean.
• Observance of things such as monthly washing and cleanliness of filters and the surface of coil splits will be important in creating pleasant and cool air and increasing the efficiency of the device, so try to open the door of the inner panel monthly and wash the filters and remove the dust on the surface of the coil with Wipe with a damp cloth.
• By calculating the wattage and ampere consumption of the air conditioner mentioned in the catalogue and the label of the device, the energy level of the air conditioner can be calculated to some extent, but this energy level will not give you a number to calculate the electricity consumption, and it is more indicative of the efficiency and effectiveness of the air conditioner.
• To calculate the electricity consumption, you should keep in mind the tariff listed by the electricity department on the receipt, because the electricity department lists the tariff amount based on kilowatt hours and the timing of low load, medium load, and peak load.
• To calculate the amount of electricity consumed, keep in mind that the process of calculating electricity consumption by the electricity department is calculated in a progressive and staggered manner, so if your electricity consumption exceeds a certain limit, it will be calculated with a different tariff and this The tariff will be slightly different in different periods of electricity consumption.
• Also, pay attention to the fact that the electricity consumption tariff is lower in some cities such as Ahvaz and southern cities due to high heat and the fact that only air conditioners can be used for cooling. The electricity consumption tariff is higher in a city like Tehran, Mashhad, Karaj, Isfahan, Erbil, Kabul, Sulaymaniyah, Halba, and other cities with similar weather, where it is possible to use the rest of the cooling systems, and this tariff is included in the receipt of the electricity department.
• Electricity consumption in heating and cooling modes will be different from each other, and the device may consume about one ampere more in heating mode, to calculate and know the watts and amps, you should pay attention to the mode in which the device is used. Be.
• To calculate the amount of electricity consumption, be sure to pay attention to the fact that you have used the air conditioner for about how many hours. Also, turning the air conditioner on and off continuously and restarting the compressor will greatly increase the amount of electricity consumption because the instantaneous power consumption of the air conditioner start is high and this amp cannot be used in the calculation of the air conditioner's electricity consumption. Gazi calculated accurately.

An example of calculating the cost of air conditioner electricity

We assume that you have an air conditioner with an electricity consumption of 2200 watts per hour and you use it for 10 hours a day and the billing period is 30 days. It is 2100 Rials for the consumption of 600 kW, the calculation will be as follows. According to the table below, you can replace your numbers and calculate the amount of consumption.

Keep in mind that this is only the amount of consumption of an air conditioner and without taking into account other electricity consumers of the building, and this calculation is for the time when you have used the air conditioner for about 10 hours a day and according to the maximum tariff of the office. Electricity has been calculated.
But how do you know that inverter air conditioners use less electricity than other air conditioners? In your opinion, how much electricity consumption of an inverter air conditioner is lower than a normal air conditioner? Do you agree with the statement that the cost of electricity used by inverter air conditioners is reduced by 60%? We leave the answers to these questions up to you so that you can decide to choose and buy the air conditioner you want by reading the above.

You can also read the article DIFFERENCE BETWEEN FAN COIL AND AIR HANDLING UNIT (AHU) 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 DamaTajhiz Engineering and Production Company experts by calling +98 21 88822550.

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