Using R410A refrigerant of what is the difference between brass and R22

the central air conditioning copper tube is air conditioning air conditioning, heat transfer medium, equivalent to a person's blood. Fluoride system of household central air conditioning pipe is divided into ordinary copper tube and r410a. Traditional refrigerant R22 air conditioner used for ordinary copper pipe, copper tube R410a refrigerant pipe for R410a air-conditioning business use. At present, a lot of fluorine system frequency coupling of household central air conditioning host using R410a refrigerant, more so in fluorine system on the online application, R410a brass *. R410A brass, R22 copper pipe pressure due to R410A refrigerant R22 refrigerant is 1. 6 times, this requires its copper density, high compressive ability strong, copper pipe cleanliness and copper pipe wall thickness, so the air conditioning system of refrigerant R410a must use special R410a copper tube. On the system installation, we can use R410a pipe to replace the ordinary R22, but absolutely can't use ordinary R22 pipe to replace R410a. Many consumer value the overall project price, the lower the better, ignoring the importance of install material and installation process, this often leads to some engineering company in order to rush to Jonathan, regardless of the late customer use engineering quality problems, secretly will materials replacement cost savings to meet customer requirements, so * final victim or consumers. Engineering installation will be absolutely correct any careless, consumers need to understand that the price is not a measure of value is not worth to purchase it. A money one point goods, and many times look much the same in the two companies plan and quotation have disparity, the inside of the issue, the article's hard to say, in short, low price is impossible for high quality engineering installation. Consumers should choose installed has more strength and reputation, reliable engineering company, can be used in the later has no trouble back at home. What is the difference between the central air conditioning refrigerant R22 and R410A? HFC working substance as refrigerant R22 for building air conditioning, the dominant for a long time. But due to the important influence of ozone depletion and global warming, the Montreal protocol has made a clear rules to disable the deadline of R22, namely the output in 1985 as a benchmark, compression of 65% in 2003, 35% in 2010, 10% in 2015, a total ban in 2020. Developing countries can be appropriately extended to 2040 a total ban on R22 products. As to further improve the global environmental protection consciousness, many developed countries have accelerated the pace of R22 alternative, the United States, Japan, Canada regulations 2010 disabled R22, the ec regulation for 2015 years ago. With R22 alternative in the world is currently R407C, R410A. Near azeotropic mixture, temperature of R410A for tiny slip, is an ideal alternative to R22. In the United States and Japan, R410A combination has become a room air conditioner and air conditioning system in the main substitute R22. Performance: in October 2002, the U. S. department of energy (doe) air conditioning and refrigeration technology research institute of special study, refrigerant near critical point system performance for the air conditioning system, compared the R410 and R22 were used respectively to two air conditioning performance of refrigerants. Outdoor temperature at 27. 8 ℃, R410 eer (air conditioning system EER) The R22 air conditioning system is slightly higher, and high temperature in * 54. 4 ℃, R410 eer (air conditioning system EER) Compared with R22 15% lower air conditioning system. Installation and maintenance: compared with using R22 air conditioner, the new air conditioning refrigerant R410A in two, and system piping, although there is no difference in appearance and use of R22 air conditioning, the demand is higher, but its manufacturing process in the system of water content and impurity content is lower than using R22 air conditioner, and higher pressure resistance. Cooling system: ( 1) High pressure of R410a refrigeration system are as follows: 3. 0 mp, low pressure as follows: 1. 2MP。 ( In the same situation for R22 1. 5 times) ( 2) When new refrigerant R410A fission installation, connecting pipe must be used in special tube R410A, emptying, must use R410A refrigerant emptying, shall not be used and R22 air conditioning connecting pipe and confused refrigerants, otherwise will affect the stability of the use of air conditioning. ( 3) Because of R410A refrigerant compressor used in the fission machine with POE oil lubrication, POE oil and water, formation water and acid, and the generated water can cause POE oil reaction further, if the chain reaction down for a long time, the moisture inside the system will be more and more, could make the ice blocking occur capillary; At the same time system circulation within the working medium acid will be more and more high, PH lower) , could lead to corrosion in the system components, and produced copper plating. Therefore, when installed, the movement wants quickly, after open the connection pipe plug, must within five minutes to tighten the nut, emptying time. When installed, it is forbidden to sweat drip into the connecting tube; It is strictly prohibited to other insoluble impurities mixed with the system. And when installing a R410A refrigerant fission machine, * in the sunny day, rainy day, should not be conducted when humidity is big, also may be undertaken. ( 4) The chloride ion can react and R410A refrigerant and POE oil, acid corrosion parts of cooling system. Therefore, when installation shall not be mixed with chloride within the system. Such as drip into the sweat, and other impurities containing chloride ion. ( 5) During maintenance, as long as it is cut open refrigeration system, for whatever reason, must change the filter drier. Cut open after the refrigeration system, must be immediately encase with something break open, in order to prevent moisture from the air into the system. Refrigeration system is exposed to the air may not have the time in the five minutes. ( 6) When change the filter drier, open at both ends of the filter drier after closing plug, welding must be within five minutes into the system so as to isolate air as soon as possible, otherwise will affect the performance of the filter drier.

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