Do-it-yourself freon filling the refrigerator is not a big deal. To do this, you need to follow simple instructions to avoid further leaks.
There are different situations when you may need to replace the refrigerant in the refrigerator yourself. Most often, the refrigerator is filled with freon, this gas, according to its characteristics, is best suited for this. To figure out how to properly fill the refrigerator with freon yourself, you need to understand the device's device and the scheme of its operation. First you need to understand what freon is and why this gas is used in the cooling system of the refrigeration unit.
How does freon work in refrigerators?
Freon is used as a refrigerant and circulates in a closed loop between the compressor and the condenser. Freon is liquefied in the condenser, and when it enters the evaporator, it takes in thermal energy. Thus, if a refrigerant leak is allowed, the cooling is reduced or stopped completely. If the temperature in your refrigerator has ceased to correspond to the set parameters, one of the primary reasons may be a freon leak.
Freon was not chosen by chance, this gas is colorless and odorless, and also does not harm the human body. Leaking it does not entail any consequences, which makes it a great option for use in a refrigerator, a place to store our food. Gas can be operated for a very long time, it does not lose its properties. Freon replacement is most often caused by its leakage.
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When you need to refuel the refrigerator with freon
The leak of Freon can not be traced by any physical signs, since it has no color and odor. The surest way to determine if Freon is currently needed is to check the temperature of the refrigerator. The greater the difference between normal and actual temperatures is observed, the greater the freon leakage has occurred at the moment.
The cause of leaks can be mechanical damage to individual parts; before they are repaired, replacing the refrigerant will not make sense, so the likelihood of repeated leakage will be high. The main reasons for the loss of freon are:
- corrosion of tubes and metal elements of the condenser;
- breakage and mechanical damage to the tubes;
- poor quality of tubes containing cracks of sizes invisible to the eye;
- incorrect connection of the pipes.
Only after correcting all the shortcomings of the refrigerator system, you can start refueling. Most of the parts need to be replaced; it makes no sense to repair the various tubes separately.
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How to properly fill a freon refrigerator at home
Before you start refueling freon with your own hands, remember the safety requirements, the system is under pressure, which is fraught with dangerous situations. We determine the brand of refrigerant (freon), it is not difficult to do this, all the necessary information is always indicated on the compressor, you just have to examine it more carefully. You also need to know how much freon you should use, this can also be found from the information on the compressor housing.
To fill the refrigerator with freon with your own hands, it is worth preparing everything you need in advance - a bottle of freon, hoses with valves, a special manifold. First you need to hook the blue hose to the refueling pipe, and put both valves in the closed position. Next, you need to look at the pressure, a fitting is soldered to the supply line, with which you need to connect the red hose. Turn off when the pressure reaches half an atmosphere, then run the compressor for 30 seconds.
We connect the yellow hose to the vacuum pump, after opening the blue valve, the pump turns on for 10 minutes, and then the hose is connected to the refrigerant cylinder. Next, filling the refrigerator with gas begins, you need freon to fill the entire compressor. All movements to close the valves should be smooth and unhurried, replacing the cooling gas does not tolerate haste. Together with the gradual closing of the yellow valve, the blue one opens.
If you think that replacing the refrigerant with your own hands was successful, you need to start the refrigerator compressor. The pressure in the system is checked again. If the normal value corresponds to how much the device shows, all used tubes must be pinched, disconnected and soldered. The reliability of soldering depends on the absence of future refrigerant leaks.
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