我们经常遇到过，空调开一段时间之后就不制冷了，有很多人认为是不是没有氟了，需要加氟才能更好的制冷呢？但是现在很多空调没有见过加氟的啊，这种情况该怎么解决呢？我们给大家讲解一下。
We often encounter situations where the air conditioner stops cooling after being on for a period of time. Many people think that there is no fluorine left and that fluorine needs to be added for better cooling? But now many air conditioners have not been treated with fluorine. How can this situation be solved? Let's explain it to everyone.
中央空调需要加氟吗？
Do central air conditioners need to be fluorinated?
1、试：空调正常开启一段时间后吹到身上的风感到很凉，并能很快达到设定温度，室外的压缩机能像电冰箱一样开一会儿停一会儿，就可以说是正常的。
1. Test: After the air conditioner is turned on normally for a period of time, the wind blowing on the body feels very cool and can quickly reach the set temperature. If the outdoor compressor can be turned on and off for a while like a refrigerator, it can be said to be normal.
2、测：用温度计测量室内机的进、出风口的温差，差值在8℃以上为正常，温差越大说明空调的工作情况越好，好的可达15℃左右。
2. Measurement: Use a thermometer to measure the temperature difference between the inlet and outlet of the indoor unit. A difference of 8 ℃ or more is normal, and the larger the temperature difference, the better the working condition of the air conditioner. A good one can reach around 15 ℃.
3、看：在开机十几分钟后，打开室内机面板，应看到蒸发器 ( 铜管上穿满铝片进行热交换的部件)上均匀布满冷凝水(像露水一样)，为正常(空气湿度大时多，反之较少)。如果一半有一半没有，可能为缺氟，如局部结霜或结冰也不正常。
3. Look: After turning on for more than ten minutes, open the indoor unit panel and you should see that the evaporator (a component with copper pipes covered in aluminum sheets for heat exchange) is evenly covered with condensed water (like dew), which is normal (more when the air humidity is high, and less when it is low). If half of them do not have it, it may be due to fluoride deficiency, such as local frosting or freezing, which is also abnormal.
4、摸：如室外机在人手能摸到的地方，可在开机十几分钟后用手摸。室外机有两个铜阀门，一个接粗铜管，一个接细铜管。用手摸两阀门应有温差;粗的应比细的温度低些，摸着比较凉为正常(在温度高时也应有冷凝水)，再摸室外机的热风是不是热呼呼的，如果不大热可能缺氟。
4. Touch: If the outdoor unit is within reach of human hands, it can be touched by hand after being turned on for more than ten minutes. The outdoor unit has two copper valves, one connected to a thick copper pipe and the other connected to a thin copper pipe. There should be a temperature difference when touching the two valves with your hands; Coarse ones should have a lower temperature than fine ones, and it is normal to feel cooler when touched (condensation should also occur when the temperature is high). Then, touch the outdoor unit to see if the hot air is warm. If it is not too hot, there may be a lack of fluorine.
5、察：使用过半年以上的用户，可察看室内机的管道接头和室外机阀门处是否有明显的漏油迹象，如有明显的漏油现象则表明机器有泄漏，因为油氟互溶，漏油必漏氟，漏氟必漏油。
5. Attention: Users who have used the indoor unit for more than six months can check whether there are obvious signs of oil leakage at the pipeline joints and outdoor unit valves. If there are obvious oil leakage phenomena, it indicates that the machine is leaking, because oil and fluorine are mutually soluble. If there is oil leakage, there will be fluorine leakage, and if there is fluorine leakage, there will be oil leakage.