Refrigerator fluoride steps: 1) Connect a pressure gauge to measure high pressure, because the low pressure port after 600A refrigerant fluoride is negative pressure, it is inconvenient to put it off when added, and the high pressure can be estimated by the pressure value during operation How much Freon can be added, and the meter can also be self-drained. Open the three-way valve at the filter end, self-discharge vacuum, in order to clean the point and then connect the compressor to the three-way pump, the vacuum effect is good. 2) Power off, add 600A, see the low-voltage meter to 0.2 reading is almost the same, power the refrigerator to run, and so on the high-voltage end meter reading is almost 0.6-0.7 is appropriate, after the overall temperature of the refrigerator is cooled down, the high-voltage end reading is 0.5-0.6 is appropriate, in the refrigerator to install a temperature monitoring meter. When Freon is close to the best point, the freezing temperature should be about minus 23 degrees, the cold room is frosty, and the return air pipe is generally at room temperature. If the temperature gauge reading is not minus 20 degrees and the refrigerator frosts, it means that the carbureon is more, if the temperature gauge shows about minus 30 degrees, generally at this time the refrigeration temperature does not come down or the cooling speed is slow, which is a little less Garfreon.
Method/Step
Quantitative fluoride: Quantitative fluoride is the use of a quantitative doser for refrigerator fluoridation to fluoride, which is based on the amount of fluoride marked on the refrigerator nameplate.
Weighing fluoride: that is, before fluoridation of the refrigerator, weigh the refrigerator, record the detailed value, and then continue to weigh at the same time of fluoride, fluoride the refrigerator appropriately, when the value meets a relatively large value, you can stop fluoridation.
Metered fluoride: This is a method of controlling the refrigerant, which is loaded into a transparent container with a value in advance, so that the amount of fluoride can be controlled according to the reduction of the container value.
Low pressure fluoride: the amount of refrigerant can control the pressure value of the compressor, the pressure value of the refrigerator compression can be measured out by the instrument side, the refrigerator is properly fluorideated, and the pressure value of the compressor can be measured while fluoridating, and the amount of fluoride can be judged.
Empirical fluoride: The method of empirical fluoride is mainly to feel whether the return pipe of the refrigerator has a cold feeling with your hands, the return tube of the refrigerator is very cold or there is condensation, and the evaporator can be hung with frost.
