Does an old air conditioner use more electricity than a new one?

At the same number of horses, the old air conditioner consumes more electricity than the new one.

1. Technical reasons, the continuous development of science and technology.

2. The energy consumed by the same number of horses is relatively reduced.

3. The old air conditioner has been used for a long time and cannot be refrigerated reasonably, which will increase power consumption.

Below m2 23 machines (small one horse, m2-14m2, 26 machines, large one horse, m2-18m2, 32 machines, (small one and a half horses, m2-20m2, 35 machines, one and a half horses, m2-32m2, 50 machines, two horses, m2-45m2, 61 machines, two and a half horses, m2-55m2, 75 machines, (large three)

5. The start-up current of the fixed-speed air conditioner is several times the rated current, and the fixed-speed air conditioner frequently starts and stops during operation, which consumes a lot of electricity.

6. The fixed-speed air conditioner has been heating at the rated high power during operation, and the air conditioner will shut down after the room temperature rises to the set temperature of the air conditioner plus 1 degree. After the air conditioner is shut down, when the room temperature drops to the set temperature of the air conditioner minus 1 degree, the air conditioner starts again, and so on. The same goes for refrigeration.

7. The heating capacity of the fixed-speed air conditioner in winter is insufficient, with an electric auxiliary heating element, and the energy efficiency ratio is only 1. The electric auxiliary heating power of the fixed-speed air conditioner is 1 2kw, which is very electricity-intensive.

8. The start-up of the inverter air conditioner is soft start, no impulse current, and there is no waste of electricity.

9. When the room temperature reaches the set temperature of the air conditioner, the air conditioner becomes low-frequency operation and does not stop working. Continuous low-frequency operation consumes only one-third or even only a quarter of the rated power, as does refrigeration.

10. The inverter air conditioner does not have an electrically auxiliary heating element that consumes electricity.

Why does an old air conditioner consume more electricity than a new one? There is also a difference in power consumption between air conditioners of the same size.

Theoretically, this is so. With the extension of the service life of the air conditioner, the wear and tear of the internal structural parts of the air conditioning compressor is aggravated, and the cooling capacity that can be provided under the same power consumption is reduced, that is, the work efficiency is reduced. At the same time, the surface area of the indoor and outdoor heat exchanger is seriously dusty, which also reduces the working efficiency of the air conditioner.

Purchase pointsA good air conditioner can last up to 10 years, and it is not low. Therefore, you must not be greedy for cheap air conditioners, and you must look at the quality of the product when you buy air conditioners

1 Whether to use a brand-name compressor, the compressor is the heart of the air conditioner, and a good heart is of course important.

2. Whether to use high-quality and high-efficiency heat exchangers, such as hydrophilic membrane trapezoidal aluminum sheets, internally threaded copper tubes, etc.

3. Whether to use unequal distance through the flow blade large wind wheel and stepper motor to drive the wind swing to achieve ultra-quiet design.

4 Whether it is super forced cold (hot) and quickly reaches the set temperature.

That's for sure, power x time, power is certain, the longer the time to do more work, the greater the power consumption. If you use it for a long time, the lower the electricity bill is against common sense, which is impossible.

Theoretically speaking, this is relative, the air conditioner has been used for a long time, due to the aging of compressors and other accessories, the refrigeration effect will decrease, and the same electricity consumption, the refrigeration effect will decrease, which is equal to the increase in power consumption. Generally, there is not much of a gap.

That's true in theory, but it's pretty much the same in practice.

The first difference is the difference in comfort.

The new inverter air conditioner has a built-in inverter, and the old air conditioner does not. This will lead to a common phenomenon in us, that is, the old air conditioner will be hot and cold, and the inverter air conditioner gives people a very comfortable feeling.

The second difference is to guess the difference between the two in terms of power consumption.

For the same number of air conditioners, as mentioned above, the new air conditioner and the old air conditioner are used under the same conditions, and the new air conditioner will save 10% to 15% of electricity compared to the old air conditioner.

The third difference is the difference in electricity consumption.

Because power consumption is related to many factors, if you purely use calculations to calculate the power consumption of an air conditioner, it is estimated that no one can calculate it accurately. Therefore, the power consumption of air conditioners is generally calculated based on some empirical data.

A brief introduction to the power consumption of the new air conditioner: the power of the motor is about 1200 watts. Therefore, the maximum load power consumption of this air conditioner per hour is the kilowatt-hour of electricity.

However, according to empirical data, the power consumption of this air conditioner for 10 hours is about 60% of the comprehensive electricity consumption, that is, multiplied by 10 hours, and then multiplied by 60%, which is about equal to the kilowatt-hour of electricity.