What is the power consumption of central air conditioning? Is it more expensive than ordinary air conditioners?

What is the power consumption of central air conditioning? Is it more expensive than ordinary air conditioners?

Air conditioning is almost an item in many people's homes now, and as one of the most energy-consuming appliances in the family, its installation and selection are also issues that we attach great importance to. Especially in recent years, with the increase in the number of home installations, many people have doubts about whether central air conditioning is better or traditional air conditioning. Which option is the most energy efficient? Now let's look at the comparison of people in the industry, and you will know how to choose.

1. Which is better, central air conditioning or ordinary air conditioning?

1. In terms of power consumption, central air conditioners are less than ordinary air conditioners.

Don't mistake central air conditioning for power consumption. In fact, ordinary air conditioners consume more electricity.

For medium and large units, the power consumption of central air conditioning is much lower than that of traditional air conditioning, which is very cost-effective.

For example, in a 90-square-meter house, all rooms are open, and the air conditioner is used 14 hours a day, with a cooling capacity of 6800W and a power of 2500W, then the annual power consumption is 90×14× 45 %× 2500/1000 =1.

In contrast, if each hall uses 1.25 wall hanging machines respectively, the cooling capacity of a single machine is 2,500 W, and the power is 1 1,000 W. Under the same conditions, three machines work at the same time, which is 90×14× 45 %× 3,000//kloc-.

Therefore, the electricity consumption of the central air conditioner is less than the sum of several traditional split air conditioners, which can save about 100 yuan per month.

2. From the functional point of view, central air conditioning is more than traditional air conditioning.

Traditional air conditioners generally only have three basic functions: cooling, heating and dehumidification, and cannot introduce fresh air. Central air conditioning not only has all the basic functions of traditional air conditioning, but also has a fresh air system, which can monitor indoor air quality 24 hours a day and make the air circulate.

From the aesthetic point of view, central air conditioning is more beautiful than traditional air conditioning.

Traditional air conditioners need to be placed, occupying wall or floor space, and the indoor and outdoor machines are exposed, which will affect the appearance. The central air conditioner adopts concealed installation, which is easy to integrate with the interior decoration style and is beautiful and generous.

4. In terms of comfort, central air conditioning is superior to ordinary air conditioning.

The position of air outlet and air return of traditional air conditioner can't be adjusted, which easily causes some areas to be cold and some areas to be hot, and the user experience is not good. The central air conditioner is hidden in the local ceiling space, which can prevent the air conditioner from blowing directly on the human body to the greatest extent, making the indoor temperature more uniform and the user more comfortable.

Second, the central air conditioning power saving standard

1, energy efficiency ratio

"Low energy consumption" and "high comfort" are two recognized standards for purchasing central air conditioning. The most important thing about central air conditioning is its high energy efficiency ratio. The energy efficiency ratio of central air-conditioning refers to the ratio of cooling capacity or heating capacity of air-conditioning to operating power, which is the ratio of measuring the efficiency of air-conditioning and electricity consumption. The higher the energy efficiency ratio, the less electricity is used to produce a certain unit efficiency, and the more energy is saved.

2.DC frequency conversion

Inverter air conditioning is the mainstream of central air conditioning market. Frequency conversion compressor is the key to saving electricity in air conditioning. The compressor of air conditioner converts energy into hot air or cold air when it consumes electricity. The higher the efficiency of this conversion, the more energy will be saved. Inverter air conditioners are divided into AC inverter air conditioners and DC inverter air conditioners. DC inverter air conditioner adopts DC digital variable speed compressor, which only needs one-time voltage conversion, saving electricity by 18% to 40% compared with AC inverter.

3. Temperature control

The temperature setting of the central air conditioner should be appropriate. It is unnecessary to be too cold or too warm, which is easy to waste electricity. When people sleep, their metabolism drops by 30% to 50% and they are insensitive to temperature changes. Set the central air conditioner on the sleep switch. When people fall asleep for a certain period of time, the air conditioner will automatically raise the indoor temperature. The central air conditioner with sleep setting function can save 20% electricity.

4. Air supply mode

The central air conditioner with three-dimensional air supply function can swing up and down and left and right automatically, and the indoor temperature is more uniform. The new central air conditioner is equipped with retractable blades, which can swing freely at different angles according to the operation mode and automatically select the air supply state. In the heating mode, the blades extend downward by default to supply air, which makes it easier to send warm air to the feet; In the cooling mode, the blades retract horizontally by default, which can effectively prevent the blades from condensation and dripping.

Third, air conditioning power saving skills

1, set to "dehumidification" mode.

In summer, most of us work in "refrigeration" mode. In fact, staying in the room in "dehumidification" mode is more comfortable and saves more electricity.

2, the temperature is set at 26℃

Don't set the temperature of the air conditioner too low. Especially during the day, many people turn on the air conditioner to more than ten degrees as soon as they get home, which is not only easy to catch a cold, but also consumes a lot of electricity. The most suitable temperature for our human body is 26 degrees, and it can save electricity 10%.

3. Don't switch frequently.

Don't turn on and off the air conditioner frequently, because electrical appliances consume a lot of electricity at the moment of power-on, and frequent switching can easily lead to air conditioner failure, so if you go out for a short time, it will save more electricity if you don't turn off the air conditioner!

We all say that variable frequency air conditioning saves electricity than fixed frequency air conditioning. The premise is that they can not only save electricity for a long time, but also reduce the indoor temperature difference, especially in families with children.