If we stay in the air-conditioned room for a long time, our tongue will be dry, because the air conditioner has a good dehumidification effect in addition to cooling. In summer, it is not only high temperature but also high humidity, so everyone likes to turn on the cooling mode and the dehumidification mode at the same time. Can the dehumidifier be left on overnight? If the dehumidification mode is always on, it will cause a certain degree of damage to the air conditioner compressor, and too dry air is not good for human health. Does the air conditioner dehumidification mode save electricity? How long does it take to dehumidify an air conditioner? Let’s take a look together.
Air Conditioner Dehumidification Principle Air Conditioner Dehumidification Air Conditioner Dehumidification Principle
Air conditioner has dehumidification function in two modes:
First, independent dehumidification mode This method is called constant temperature air conditioner dehumidification by industry insiders Its basic principle is to reheat the air cooled by the evaporator to the original temperature, and then send it into the room, so that the indoor environment remains relatively constant when the humidity drops.
Second, the cooling mode is a mode that any air conditioner has, and it is also the most basic function of the air conditioner. The cooling process of the air conditioner must be accompanied by dehumidification. After the humid air passes through the evaporator of the air conditioner, the temperature will drop significantly, and the air humidity is in a state of supersaturation. That is, “condensation”, when the cooling mode reaches a certain equilibrium state, the air humidity will drop to a certain level.
When using the dehumidification mode of the air conditioner, pay attention. If the outdoor temperature is high and the air is very dry, do not turn on the dehumidification mode for a long time to avoid damage to the compressor. Generally, the outdoor temperature is higher than 40 degrees. It is time to use ordinary refrigeration. Only in the evening when the temperature is relatively low and the humidity is high, the dehumidification mode can be turned on in time to achieve the effect of adjusting the temperature and humidity of the room.
When to use the dehumidification function of the air conditioner
When to use the dehumidification function of the air conditioner
The dehumidification function can be used when the indoor humidity is higher than 60%.
The so-called humidity is the scale of the water content in the air. In summer, the human body feels comfortable humidity in the range of 40%-65%, and on sauna days, this indicator tends to rise to more than 80%. A survey has shown that when the relative humidity reaches 90%, even the room temperature of 26°C will make people feel like 31°C!
When the weather is hot, millions of sweat glands in the human body are constantly Sweat is produced, and dry air can quickly absorb these sweats, making us feel cool, but in a humid air environment, because the air is already full of moisture, it is unable to absorb moisture. As a result, sweat has to accumulate on people’s skin, causing the body temperature to rise continuously, resulting in shortness of breath, chest tightness and other adverse reactions. At the same time, the humid environment is a breeding ground for bacterial growth, which brings hidden dangers to people’s health. In addition, when the air humidity is too high, water vapor will also adhere to the surface and internal parts of household appliances. If it is not treated in time, the service life of the appliance will be greatly shortened.
At this time, if the dehumidification function is turned on, the air conditioner will automatically reduce the amount of refrigerant to the evaporator, and turn it into the water vapor in the condensed air, so as to play a dehumidification effect, and at the same time of cooling, it can absorb the air Remove excess moisture and dry the room. Of course, different types of air conditioners have different dehumidification capacity. The dehumidification capacity of general wall-mounted air conditioners can reach 1-3 kg per hour, which can make the indoor air dry and suitable.
Air Conditioning Dehumidification Logo Air Conditioning Dehumidification Logo Divided into snowflakes is cooling; the sun is heating; fan blades are supplying air; water droplets are our dehumidification; triangle sign is automatic;
How long does it take to dehumidify the air conditioner
The bigger the room, the smaller the number of air conditioners, the lower the required target humidity, and the longer the dehumidification operation needs to be, and vice versa. Generally speaking, in the case that the number of air conditioners matches the size of the room, and the target air humidity requirements are not very high, continuous dehumidification for 30 minutes to one or two hours is enough. It is worth noting that the dehumidification mode of the air conditioner must not be turned on for too long.
Do you use dehumidification mode to save electricity in summer? Does dehumidification mode save electricity in summer?
Air conditioners are used more in summer, so everyone wants to make air conditioners more energy-saving and power-saving as much as possible. If the air conditioner dehumidifies while setting the lowest cooling temperature, it will consume a lot of electricity. The longer it runs, the more power it consumes. Therefore, turning on the dehumidification mode when the cooling temperature of the air conditioner is relatively high is more energy-saving. You can compare and see if what I said is correct.
Air conditioner dehumidification mode Air conditioner dehumidification mode
1. The air conditioner dehumidifies under the condition of cooling
Air conditioner dehumidification, in the process of cooling, the humid air passes through the evaporator of the air conditioner and the temperature will increase. The air humidity is greatly reduced, the air humidity is in a supersaturated state, and the remaining water vapor is separated by condensing water and condensed on the fins of the evaporator, that is, “condensation”, and the cooling mode reaches a certain equilibrium state. Humidity also dropped to a certain level. Therefore, when the air conditioner is in the process of cooling, not only the air temperature is reduced, but also the humidity of the air will also decrease. This is the working principle of dehumidification in the form of air conditioning and refrigeration. In fact, it is a “side effect” accompanying the refrigeration process, reducing humidity.
2. Dehumidification in the non-refrigeration mode of air conditioners
Nowadays, many air conditioners have independent dehumidification functions. Originally, their working principle is to reheat the air cooled by the evaporator to The original temperature, and then sent into the room. That is to say, the indoor fan always operates at a low speed, the compressor starts and stops, and the refrigeration system performs an intermittent refrigeration cycle. Smaller ones are used to balance sensible heat, i.e. lower some room temperature. Such a continuous cycle keeps the room temperature near the set value, and at the same time removes a large amount of moisture from the air. In this way, the indoor environment has remained relatively stable under the condition of reduced humidity. The refrigeration of the air conditioner is only used for condensation and has little control over the temperature, so this dehumidification is called constant temperature dehumidification.
3. How to use the dehumidification function of the air conditioner
In the rainy season in the south and the hot and humid climate in the north, we can turn on the “dehumidification mode” of the air conditioner. It will be quickly discharged to the outside, and we will not feel uncomfortable because of too much humidity. At the same time, the air conditioner will continue to blow cool air to keep the indoor temperature suitable. At the same time, the compressor and outdoor time should stop working for a period of time, which is better than The pure form of refrigeration saves a lot of electricity.
What is the appropriate degree of air conditioning dehumidification? 1. Automatic setting
When turning on the air conditioner, what is the appropriate degree, I can tell you that there are two modes, one is the automatic setting mode. Many manufacturers have already set it before leaving the factory, and we do not need to set it separately. Therefore, under normal circumstances, when the dehumidification mode is turned on, its temperature will be about 2°C lower than the room temperature.
2. Manual settings
In addition to the automatic settings mentioned above, manual settings can also be performed. This is usually some old-fashioned air conditioner. If it is set manually, you can choose to adjust the temperature to a difference of 2-4°C from the room temperature. This will dehumidify better. Everyone should note that this is for some old-fashioned air conditioners.
The difference between air conditioning dehumidification and refrigeration
The difference between air conditioning dehumidification and refrigeration
Refrigeration: The refrigerant vaporizes in the indoor evaporator of the air conditioner to take away heat, so that it flows through the evaporator fins indoor air cooling. The vaporized refrigerant is compressed and liquefied by the compressor outdoors to release heat, and the heat is transferred to the outdoor air through the radiator. Such continuous circulation achieves the effect of cooling the indoor air.
Dehumidification: During the cooling process, the temperature of the humid air will drop significantly after passing through the evaporator of the air conditioner, and the air humidity will be in a supersaturated state. On the fins of the evaporator, that is, “condensation”, when the cooling mode reaches a certain equilibrium state, the air humidity will drop to a certain level.
1. The same points of air conditioning refrigeration and dehumidification:
When the air conditioner operates in the refrigeration mode, it must remove water vapor while reducing the air temperature; when the air conditioner operates in the dehumidification mode, it removes water At the same time of steam, the air temperature must be reduced at the same time; therefore, whether cooling or dehumidification, reducing air temperature and removing water vapor are inseparable. Regardless of refrigeration or dehumidification, when the indoor hot air passes through the heat exchanger of the indoor unit of the air conditioner, the water vapor in the hot air is condensed into condensed water at a low temperature, and the condensed water is discharged to the outside through the drain pipe; at the same time, the cold air after heat exchange is discharged from the air conditioner. The vent blows out.
Second, the difference between air conditioning refrigeration and dehumidification
Refrigeration: the purpose of reducing the air temperature, while removing water vapor. Select the cooling mode, the cooling temperature and fan speed can be adjusted up or down. The air conditioner operates in cooling mode according to the manually selected temperature and wind speed to achieve the purpose of lowering the air temperature (while discharging condensed water), and the cold air blown out is relatively strong.
Dehumidification: The purpose of removing water vapor is to reduce the air temperature and select the dehumidification mode. The dehumidification temperature and wind speed cannot be adjusted up or down. The air conditioner operates in dehumidification mode according to the automatically set low temperature and low wind speed to achieve the purpose of removing water vapor in the air (and blowing out cold air at the same time). The purpose is to remove water vapor while reducing the air temperature.
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