Choose the appropriate timing for disinfection and cleaning
Choose the appropriate timing for disinfection and cleaning
1. Seasonal cleaning: Disinfect the air conditioner once before the first startup in summer
2. Disinfect the air conditioner once in late summer, maintain it, and prepare for safe use in winter.
3. Daily cleaning: During frequent use of the air conditioner,
4. Clean and disinfect the filter screen once a month for better results.
Determination of Fluorine Deficiency in Air Conditioning
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. The outdoor compressor can be turned on and off like a refrigerator, which can be said to be normal.
2. Measurement: Use a thermometer to measure the temperature difference between the inlet and outlet of the indoor unit. A difference of more than 8 ℃ is considered normal. The larger the temperature difference, the better the working condition of the air conditioner, and a good one can reach around 15 ℃.
3. Look: After turning on for more than ten minutes, when opening the indoor unit panel, you should be able to see that the evaporator (a component filled with aluminum sheets for heat exchange on the copper tube) is evenly covered with condensed water (like dew), which is normal (more when the air humidity is high, less when it is low). If half is missing, it may be due to fluoride deficiency. Local frost or icing is also abnormal.
4. Touch: If the outdoor unit is within reach of human hands, it can be touched by hand after turning 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 between the two valves when touched by hand; Coarse ones should have a lower temperature than fine ones, and it is normal to feel cooler when touched (condensation water should also be present when the temperature is high). If the hot air from the outdoor unit is not very hot, it may be due to a lack of fluorine.
5. Inspection: For users who have been using air conditioning for more than half a year, they can check whether there are obvious signs of oil leakage at the pipe joints of the indoor unit and the valve of the outdoor unit. If there is an obvious oil leakage, it indicates that the machine is leaking because oil and fluorine are mutually soluble, and if there is an oil leakage, fluorine will leak.
Fluorination method
Let's start with the composition: R410a is a new environmentally friendly refrigerant. Some merchants claim that it is a fluorine free air conditioner when selling it, which is an imprecise statement. R410a is a 1:1 mixture of R32 and R125 in liquid form, suspected to be an azeotropic refrigerant with a boiling point of -51.6 degrees Celsius. And both refrigerants contain fluorine, how can they be called fluorine free air conditioners? He is an environmentally friendly refrigerant because the two refrigerants used to synthesize 410 do not contain chlorine, while R22 contains chlorine. After R22 enters the atmosphere, the chlorine in R22 will decompose and react with ozone to destroy the ozone layer, so R410 is environmentally friendly.
Features: It is environmentally friendly, with a 1:1 mixture of two refrigerants in liquid state, and a pressure 1.6 times that of R22, which can improve evaporation and condensation efficiency. It uses POE to synthesize oil (ether oil).
Operation requirements: During installation, air must not be used to evacuate and vacuum must be applied. The tools used must be specialized and cannot be mixed with R22.
All tools used during maintenance and refueling must be specialized, including the accessories used in the system (as their pressure is high and not specialized may cause explosions and leaks). Before filling, it is necessary to first identify the leakage point. After dealing with the leakage point, add the remaining refrigerant to discharge and vacuum (for more than 30 minutes, depending on the capacity of the vacuum pump), and add liquid quantitative filling (such as pouring the refrigerant tank upside down without a siphon). When the refrigerant in the tank is less than 10%, the system cannot be filled again (because the ratio of the two types of refrigerant is different in the gaseous state).
Many people say they use it without vacuuming, but you're wrong. If you don't use it, the effect is similar. If it's your own home, would you not use it? Some people may say that I don't smoke either, so after reading it, you can decide whether to smoke or not. Why do we have to vacuum? Starting from the composition, if you don't vacuum, there may be air residue in the system, which will inevitably result in different proportions of these two refrigerants, and to some extent, it will affect the effect. From the perspective of refrigeration oil: R410 uses POE synthetic oil, which is mostly composed of multiple solid lipids and is mostly synthesized from acids and alcohols: (acid+alcohol=lipid+water) This reaction process is reversible, which means that refrigeration oil will react in reverse with water to form acids and alcohols, and this acid will react with the metals in the system to produce metal salt particles, which can cause system blockage and also damage the enamel coating of the compressor coil, Thus causing great damage to the system.
Some people may say that even if I haven't smoked, it's okay. It's because you're lucky that there isn't much moisture in the air being absorbed by the dryer, and there's still time left. Maybe it will go bad in a year, or maybe it will go bad in two years