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If you're feeling hot these days, don't doubt it, because it is. Under the "support" of "Boss" (subtropical high pressure belt), the temperature of Shenzhen "rolled" up. This round of high temperature has the characteristics of long duration, wide range of high temperature and strong extreme. Monitoring data showed that from July 10 to 25, when the high temperature warning took effect, the National Basic Station in Shenzhen recorded 12 hot days with temperatures above 33℃ and four consecutive hot days with temperatures above 35℃, which was the joint second longest number of hot days since 1952.
The weather is hot to a certain extent, there are citizens found that the home air conditioning suddenly not to force! According to Ms. Wang, as hot as this year's summer, as long as people are indoors, you must turn on air conditioning. But recently she found that the air conditioning in her home, it seems not as good as before.
And recently there is a picture circulating in the wechat group, is a brand of air conditioning issued a warm reminder, remind users, the next week the temperature will be above 39 degrees, all air conditioning will reach the critical point of design operation range, refrigeration effect will be worse and worse, and even outdoor unit protection shutdown.
Some netizens joked that the original air conditioning is also afraid of heat.
So, does air conditioning really have a working critical point? At what degree will protective shutdown occur outside? Xiaobian decided to find out
Air conditioning will also be "afraid of heat", affecting the refrigeration effect
To figure out the warm prompt of true and false, reporters call the customer service, the brand air conditioning each other confirmed the statement, said the temperature of the air conditioning running a tipping point for 43 degrees Celsius, the temperature outside more than 43 ℃ under sustained sunshine, so there may be refrigeration effect is poor, even the thermal protection outdoor downtime.
Is this the manufacturer's opinion, or is it based on science?
Yang Can, deputy dean of the Sino-German Institute of Intelligent Manufacturing at Shenzhen University of Technology, said most of the current household air conditioners are air coolers, which use heat exchange between fans and radiators to dissipate heat, and the operation of air coolers can indeed be affected by outdoor weather. When the outdoor temperature exceeds 43℃, if the cooling condition of the air conditioner is not good, the air cooler can not disperse the hot air, and the refrigeration effect will become worse. That is to say, there is indeed a long-term high temperature affecting the refrigeration effect of air conditioning.
Yang Can, deputy director of the Sino-German Intelligent Manufacturing Institute at Shenzhen University of Technology: According to national regulations, the operating temperature of air conditioners should range from -7 ℃ to 43℃. The summer sun is too fierce, it is possible to exceed this temperature, it will affect the air conditioning machine work, heat dissipation is slow, naturally not so cold.
The temperature should not be too low medium wind is best
In view of this situation, when the public is installing air conditioning, you can choose the place with better ventilation. In daily use, the indoor temperature should not be set too low to ensure that the temperature difference between indoor and outdoor does not exceed 6-10℃.
Generally speaking, when the air conditioning is turned on, the wind is more appropriate to moderate, if the long-term use of strong wind, the work load of the air conditioning host is also relatively large. Usually also pay attention to the maintenance of air conditioning, regularly clean the dust of air conditioning, to ensure the normal operation of air conditioning.
Guo Quanfa air conditioning industry insiders
We suggest setting the lowest temperature between 26 ° C and 28 ° C, which can save electricity and reduce the frequency of the air conditioner, which can ensure the continuous operation of the air conditioner and reduce the failure rate.
Xiaobian to make a summary: in order to air conditioning is not hot to strike, the air conditioning unit should be installed in a ventilated place, the air conditioning temperature is best set between 26 degrees and 28 degrees. Regular maintenance clean air conditioning dust, do not use strong wind for a long time, remember yo.
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