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Physical properties of R-22 as a result of good performance in a wide range of applications, but with a limiting factor, caused by high temperatures arising in the process of its compression. In the refrigeration systems, where the temperature difference between the desired temperature and the surrounding area is a high risk of unacceptable conditions and failure increases. In hot climates, the problem Commercial refrigeration application increases significantly more than in air conditioning systems. In industrial applications, R-22 was the alternative ammonia where it better cooling capacity than the R-12 and more available and cost less than R-502. In large installations of high temperature may be various technical solutions, but it was not cost-effective in smaller commercial systems, where R-12 and R-502 have been more common...
 
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