Refrigerant R410A air conditioning use matters needing attention

2019 - 03 - Is a new kind of environmental protection refrigerants, 11 r410a refrigerant R410A originally used in less than 2 horse small air conditioning. Into a small air conditioning market rapidly after using R410A, the market share of more than 95%. As manufacturers experience accumulating, R410A gradually into large air conditioning systems. Small make up today to introduce the use of air conditioning refrigerant R410A under some matters that should be paid attention to. 1 is higher than that of R22, R410A refrigerant pressure about 1. About 6 times. When installing a R410A refrigerant air conditioning, using R410A special tools and materials, pay attention to safety operation. 2, mixed with the non-condensable gas such as air, will lead to abnormal high pressure refrigerant circulation pipeline, the circulation line is the main cause of fracture, crack. 3, when installing a yituo more air conditioning, due to the volume of the refrigerant sealed more, especially in the small room for installation, even one thousand refrigerant leakage occurs, its concentration cannot exceed the specified value. Otherwise, will cause the phenomenon of hypoxia. 4, in the use of R410A refrigerant in household air conditioner, absolutely cannot use refrigerant R410A. In using R22 refrigerant air conditioner, also absolutely cannot use R410A refrigerant. 5, because is a kind of approximate azeotropic mixture refrigerant R410A, when add refrigerant, using liquid way add. ( When using gas way to add refrigerant composition change, lead to changes in the characteristics of air conditioning also. ) 6, the copper pipe wall thickness, to comply with the copper piping design code 'regulation, according to the requirements of the following allows the use of copper pipe wall thickness, choose R410A for wall thickness of 0. 7 mm brass and copper aluminum tube, absolutely can't use! Seven, refrigerant leakage, if you can make sure the remaining refrigerant mixed with no condensate gas, liquid filling can be directly. The same set of machine this method can only be used three times. 8, R410A refrigerant air conditioner installation emptying requirements ( New refrigerant air conditioning installation, it must be empty, otherwise the air in the system will react with frozen oil, frozen oil properties) 。 High pressure valve normally closed, vacuum time must reach more than 10 minutes, guarantee the pressure reading is below - 0. 1 mpa or - 76 cmhg。 9, R22 refrigerant R410A refrigerant and compressor oil is not the same. R22 used engine oil is: mineral oil. R410A used engine oil is: synthetic oil POE or PVE. R410A refrigerant absolutely cannot use mineral oil. 10, R22 system compared with R410A special parts, compressors, R410A system must use R410A compressor, stop valve, four-way valve. Specializes in authentic air conditioning refrigerant, price concessions, false a compensate. The national free hotline: 4000 - 020 - 410.

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