How to do the testing of the refrigerator correctly

What is the refrigerator testing

As I understand it, the guys are having fun “will work your guarantee and okay” in our city, they also have such a freon because they are hard to carry, but they put the 13th jacks on everything in a row. The question is relevant.

Well, yes, if you take the midlcratic error S = ∑ni = 1 (XI. X¯) 2N. 1. √

On which refrigeration agent the compressor? 2. What is the service life before testing (crimping)? 3. What oil is refueling? 4. Acidity of oil before testing? 5. Acidity of oil after testing? 6. Oil replacement was performed? 7. The temperature of the delay point of air used about crimping? Eight. The refrigeration agent system was washed before the pressure testing? Nine. If it was washed, then what? Ten. How or how the washing tool was removed?

On previous, shameless, trolls do not pay attention!

On which refrigeration agent the compressor? 2. What is the service life before testing (crimping)? 3. What oil is refueling? 4. Acidity of oil before testing? 5. Acidity of oil after testing? 6. Oil replacement was performed? 7. The temperature of the delay point of air used about crimping? Eight. The refrigeration agent system was washed before the pressure testing? Nine. If it was washed, then what? Ten. How or how the washing tool was removed?

On previous, shameless, trolls do not pay attention!

Of course, I have been repairing the refrigerators not so long ago, but it was several times that the pressure did not leave during the day, but for 3 days the leak was already determined. Or do you mean that such a slow leak is insignificant and Freon will leave for several years? With experience, I think, I will quickly determine leaks, now there is an idea to purchase a digital pressure gauge.

Most of the described actions are so awkward and unopet that there is a suspicion of fantasarianism.

Most of the described actions are so awkward and unopet that there is a suspicion of fantasarianism.

This condensate is absorbed into the oil, or what? In principle, there are no refrigerators, but I want to be sure that the refrigerator will work for several years at least.

T.E. It is advisable to reduce the time of crimping?

Washing. What is the point of washing the contour expensive and toxic 141th. Especially using the flash for this or what you have there for the station. Not only the process itself is expensive (part of the 141st will inevitably disappear with each flushing), but there are specific problems of its evacuation. If you remove two problems with a stupid vacuum pump at once: a vacuum man grunts after a few such evacuation. The entire extracted 141st will be in the air, so in the near future, perhaps not only the vacuum pump will grunt, but also its operator.

By clock: often it is not possible to reliably determine which oil is flooded into the compressor and circuit, and mixing different oils are not recommended. Therefore, such a “replacement” without necessity is not only meaningless, but, perhaps, harmful.

About vacuuming the contour with a volume of a couple of liters “two hours” generally silent.

Washing. About 200 ml of freon goes to the washing of one refrigerator, this is about 200, I believe that this is an adequate price for the fact that the refrigerator after washing is starting like a new one, any CT blockage is breaking through at a time and all the rubbish is washed out of the contour, there is no “stood up along moisture “and t.L.The properties of the R141B stated that it is non.Toxic, although it smells not always pleasant, they have to breathe not so often, only when the installation is turned off from the refrigerator, although this issue requires more deeply studying. Vacuums 2 pcs. Still work (2 months)

For clockwork. The bottom line is that the 141st is washing oil from the system (which in the evaporator and so on) and in the compressor very often after leaks you can detect upper oil, so I change. As for mixing oil, I also study the question, but the bottom line is that synthetics are expensive, and it is already very unprofitable to change it entirely.

I then came to the forum to optimize my work, and I understand that I do not do everything right and I need advice from experienced people.

Tags: sam_ tool

2 years have passed, continues to work properly!)

Heh, I will share my experience of replacing the compressor. The refrigerator was single.Chamber, but in good condition, the compressor burned out due to the launch reella (the launch winding did not turn on stupidly), and the worker went into the cliff, in general it was very sorry to throw it off. I decided to change the compressor, t.K was an Orsk-3 worker. In general, I connected two compressor tubes with a reinforced rubber hose))) two clamps for the connection. Instead of a gas station appendicitis, I also made a kick from a bicycle. I pumped air out of the system, a homemade pump is also from the compressor. T.To. I live far from the civilization of speech about Freon and could not be. Tucked by rally from a cancer for lighters. I just turned the balcony how much propane sucked so much sucked. And about a miracle freezes like in the taiga. It has been working for the fourth year, I have not entered it into the house, all the same propane. Stands in the yard, performs its functions.

Somewhere a topic was slipping about refueling by the propane of car offices, they seem to write that it works more efficiently than on a freon.

I did on Audi hundred. It worked fine.

I tucked it with propane on a Mercedes temporarily, left for a shift, there was no time to look for a leak, my wife is rides by car now.))

Somewhere a topic was slipping about refueling by the propane of car offices, they seem to write that it works more efficiently than on a freon.

There is an effect. At the same time and you can fly!As a refrigerator repair master, I’ll write that the oil is approximately the same on the 134th freon (which is from the plant of the planted) and 600 which is used in modern refrigerators.Only now there is a catch. For working on 600 freon, it is necessary that the compressor performance is about 2 times more count to raise the engine speed 2 times)! So it will work, but you will not achieve a significant effect!At the expense of gas refueling for burners. I will disappoint. Impurities there the sea! So the motor will not work on it for a long time!

Yes, I don’t care, there is nothing from the conde except for the cold.

According to SanPina, the temperature of air conditioned air should not differ from the external external by more than 5 degrees! Otherwise, the runny nose is provided!

There is an effect. At the same time and you can fly!As a refrigerator repair master, I’ll write that the oil is approximately the same on the 134th freon (which is from the plant of the planted) and 600 which is used in modern refrigerators.Only now there is a catch. For working on 600 freon, it is necessary that the compressor performance is about 2 times more count to raise the engine speed 2 times)! So it will work, but you will not achieve a significant effect!At the expense of gas refueling for burners. I will disappoint. Impurities there the sea! So the motor will not work on it for a long time!

We began to produce studies with various gases 6 years ago. Refrigerators and freezers (designed for R134) work perfectly and to this day, the main thing is to choose the right dose, the condensation pressure, the load on the compressor is also. At the refueling of air conditioners, performance was noticeably reduced, it is necessary to change the throttle element.

There is an effect. At the same time and you can fly!As a refrigerator repair master, I’ll write that the oil is approximately the same on the 134th freon (which is from the plant of the planted) and 600 which is used in modern refrigerators.Only now there is a catch. For working on 600 freon, it is necessary that the compressor performance is about 2 times more count to raise the engine speed 2 times)! So it will work, but you will not achieve a significant effect!At the expense of gas refueling for burners. I will disappoint. Impurities there the sea! So the motor will not work on it for a long time!

The gas engine does not work, and what to download the compressor, he does not care, if only there was a lubricant. I have a zil refrigerator in my village for 30 years, and was reanimated by men without any vacuum (in those days they had no idea about it). They just seized a crack on the tube, blew a freon and uploaded and it works as well as ! I realized that the current (specialists) often drive into a problem specifically customers to tear off more. Like the solder is almost gold and the gas is magical and the price of this is fabulous for their services !

There is an effect. At the same time and you can fly!As a refrigerator repair master, I’ll write that the oil is approximately the same on the 134th freon (which is from the plant of the planted) and 600 which is used in modern refrigerators.Only now there is a catch. For working on 600 freon, it is necessary that the compressor performance is about 2 times more count to raise the engine speed 2 times)! So it will work, but you will not achieve a significant effect!At the expense of gas refueling for burners. I will disappoint. Impurities there the sea! So the motor will not work on it for a long time!

Somewhere a topic was slipping about refueling by the propane of car offices, they seem to write that it works more efficiently than on a freon.

How to refuel the refrigerator with freon at home?

If the refrigerator suddenly breaks, it may turn out that the coolant has flowed out. This is perhaps the most common cause of the failure of the household appliance. It is not necessary to call the masters, you can refuel the refrigerator with your own hands without any special skills. To do this, you need to carry out all safety measures and strictly follow a step.By.Step instruction.

The causes of freon leaks

This substance is a refrigerant of many models of refrigerators. It is a gas that does not have. Its shelf life is unlimited, but in certain cases it may require its refueling.

• Failure of the compressor of the refrigerator;
• Violations of the tightness of the capillaries through which Freon passes, as well as the system of its presentation as a whole;
• Inflicting unexpected condensation and compressor attacks. They can occur with inaccurate movement of the household device or when using sharp objects in the freezer;
• The low quality of the tubes (capillaries) on which Freon circulates, as well as the appearance of microcracks on them;
• Incorrect or non.Clamping compounds of pipelines.

To understand that the leak has really occurred, pay attention to the presence or absence of cooling in the freezer. The refrigerator may not cool, but at the same time the compressor will continue to operate in normal mode.

This can be done yourself at home, if you adhere to refueling technology.

Precautions

If the work on replacing Freon was decided to do it independently, you need to understand that this is a responsible and dangerous lesson. When conducting it, it is necessary to insure yourself and adhere to the following tips:

• The refrigerator must be turned off before the process;
• When the freon in the device will change, you cannot turn on heating devices at this time and smoke nearby;
• The work should be performed on a special isolated site, while grounding equipment is grounded;
• Soldering joints of the joints is carried out, adhering to fire safety;
• The room in which the repair was carried out, after the descent or pumping of the gas, must be ventilated for at least a quarter of an hour. Freon has no smell, but its couples can affect the state of a person conducting repairs and his household;
• For refueling, gas should be purchased only from well.Known manufacturers providing guarantees for it;
• When conducting tests of the system that works on the freon, you need to study the instructions for the repair of refrigerators.
• An overview of the reasons why the refrigerator does not turn off and continues to constantly work.
• Drill the refrigerator inside or outside? Do not rush to call the master! Perhaps you yourself will eliminate the problem!
• If your refrigerator does not work, and the freezer continues to freeze, then read this article.

Preparatory work before refueling Freon

At first, gas is pulled from the system, while it must be observed security measures. A needle capture is taken. It performs the function of a vise, it is clamped by a filter-dryer, and then a puncture is made in the place where copper is visible.

In order not to spoil the air in the room, the tube can be taken out the window and open the valve. After that, excess pressure is frightened from the system. Then the system is blown with nitrogen, this technique removes the remaining moisture. Put on the Schroeder valve, which must be installed with a complete loss of freon. Through it, Freon will be pumped. Before connecting the gas cylinder, you need to make sure that the pressure in it is less than 6 atm. Otherwise, you will have to use a gearbox that can lower this indicator.

The algorithm of actions with it is the following stages:

• For 10 minutes, blow the refrigerator;
• Block the valve on the needle capture;
• Cut the filter-dryer at the capillary tube;
• Repeat the blowing process.

Step.By.Step instructions for replenishing freon

For work, the presence of two manometers will be required. One red and the other blue. They are complete with 2 valves and 3 hoses. The blue manometer is designed to determine the pressure of absorption, and red is used to establish an effort of discharge. Their valves block the movement of the freon in different hoses.

The procedure for refueling the procedure consists of such stages:

• Valves overlap on both semolometers overlap.
• A blue hose is connected to the tube intended for refueling. And its analogue of yellow color is twisted on a gas cylinder.
• If you need to measure the pressure in the direction of discharge, then a special pipe is soldered into this pipeline (still known as the Schroeder valve). Then a red tube is brought to it.
• The opening of the valve of the blue manometer is carried out. The cylinder containing freon slowly opens. The supercharger is seasoned with gas to a pressure of 0.4-0.5 atm. When this indicator is reached, two valves should be blocked at once.
• The compressor starts half a minute and turns off again.
• A yellow tube is disconnected from the cylinder and a vacuum pump joins its place.

Scheme of the refrigerator

All refrigerated units work due to freon. Coolant. In the process of moving along the contour, it changes temperature indicators. First, the refrigerant is brought to a boil, which makes up from.30 to.150 degrees. As a result, the air in the chambers is cooled to the desired mark.

Compressor is an important constructive element of any refrigerator. If it works properly, then the temperature in the chambers will always be maintained at a given level.

The compressor consists of a discharge device. It creates pressure. In addition to him, in the refrigerator there is an evaporator, which collects heat, a capacitor, a throttle device.

To understand how the refrigerator works, consider the scheme of its work.

The compressor keeps under the control of the pressure created in the unit. It receives a freon brought to a boil, which is displayed into the heat.Expanded apparatus. The refrigerant changes its temperature and goes into a liquid state. The compressor is driven using an electric motor.

Two motors are built in two.Chamber refrigerators, which serve their storage room. For individual blocks, its temperature regime is created, which allows you to store different types of products.

How to refuel the freon in the refrigerator and how much it needs

Which freon to refuel and how much in your refrigerator, you can learn from the information on the compressor nameplate. Typically, for refueling, Freon of the R134 and R600 brand is used, which are safe for the ozone layer of the planet, the refrigerants, unlike the Freon of the R12 brand used in old household and industrial refrigerators. The required amount of freon may vary, depending on the model of the compressor and the refrigerator, as can be seen from the photo above, the weight of the freon for refueling the household refrigerator ranges from 50 to 150 grams.

When there are problems with cooling the refrigerator or freezer, you need to conduct a comprehensive diagnosis. Perhaps a refrigerant leak. Therefore, it is necessary to patch the damaged area, and download the freon into the refrigerator. For this type of equipment service, special equipment is used. Call the master to avoid aggravation of the malfunction. If there is no money to pay for the services of specialists, then you can try to independently restore the work of the refrigerator. Adhere to expert recommendations to prevent errors in the repair process.

Reservation and vacuuming of the air defense system air conditioning: how to prevent errors? Part 1

At the stages of installation, commissioning and commissioning of refrigeration equipment there are a number of hidden work. Their peculiarity is that the errors made in them do not show themselves immediately. The system will start and will work, but after some time-it can be either a couple of months or 2-3 years-suddenly it will fail, for example, due to a freon leak or a compressor breakdown.

First of all, we are talking about processes such as crimping and vacuuming. They are critical for the reliable and long service of the system. However, it is precisely due to the fact that the consequences are delayed, they often do not apply enough responsibly.

How these works should be completed? What the customer needs to know and what he can do to verify their quality and prevent losses? We have prepared practical instructions for important points that need to be taken into account and controlled.

Today we are talking about the first of these processes. Crimping.

The process of crimping

When the track is mounted, it must be checked for tightness. For this, crimping is performed: an excess pressure is created inside the route and measure it after a while. If the tightness of the circuit is disturbed, the pressure in it will fall. Thus, you can find inconspicuous visually microcracks through which the appressive material seeps (in the case of refrigerated systems. Gas), and subsequently a refrigerant will be released.

If this process is carried out incorrectly, then you can skip a leak. And after the launch, the system will suddenly turn off due to a drop in pressure.

How to criminal off

Reservation is carried out according to a certain regulation for refrigeration systems. For systems with different refrigerants, it may vary. In general, the sequence of actions looks like this.

• The circuit is filled with nitrogen. Depending on the volume of the system, this can take from 2-3 to 30 minutes.
• After this, the system must be given 30-60 minutes to “stand up” so that the gas is evenly distributed.
• Conduct a control measurement of readings. Its results are fixed, then the manometric station is turned off.
• After a day, repeated measurements are performed that will show whether there is a drop in pressure.

The last item is especially important. There is a sufficient time between measurements. An average of about a day. To get reliable results. This requirement is often not observed and evidenced after an hour or two to accelerate the process.

How to avoid errors in crimping

When conducting crimping (as well as other works), it is important to comply with the technical requirements and the regulations of the procedures. But, trying to save time and resources, contractors often violate both. As a result, firstly, after a while, the technique suddenly fails. And secondly, it is difficult to find the reasons for the breakdown and responsible for it.

What to pay attention to the customer? The main control points.

Regardless of whether different work is performed by different contractors or specialists from one company. Each stage should be transferred with the execution of fixing documents.

After installation, an act is issued that the system is mounted and ready for pressure testing. The next act is on the adoption of the results of crimping and transferring for vacuuming. It must indicate residual pressure in the circuit.

Subsequently, if problems arise in the system, this will allow you to find the reason faster.

If this is not done, then the customer will only get the finished result, not knowing how the process was going on. If in the future the problems associated with the errors of crimping, he will not have any reason to make a claim. In addition, the presence of the customer in itself will reduce the likelihood of a negligent attitude.

Personal visual control is needed at both stages of crimping. When refueling the circuit, it is necessary to make sure that the procedure is carried out according to measuring devices with the desired level of pressure. When taking the testimony. Check if the right time is withstanding, to control the numbers and confirm that the correct data has been entered into the criminal act.

In addition, it is useful to study the regulations in advance, according to which crimping will be carried out. In order not to disassemble the technical documentation and GOSTs, you can ask for an organization responsible for crimping to provide a memo with a brief description of the process and rates of evaluation of indicators.

Freon machines must be crimped by nitrogen of special purity, which has a minimum amount of impurities and does not contain water. Water is detrimental to oil: in the process of friction, alkali forms, which corrodes the compressor winding and leads to the closure of the windings. Plus, water cannot lubricate the compressor cylinders, which leads to jamming.

Now such equipment is available to any serious installation organization, and its use significantly improves the quality of work. Outdated mechanical devices have low accuracy. Up to 5 bar, which is not enough to determine pressure indicators. Electronic stations determine it accurate to hundredths of units.

The system should be not only hermetic, but also strong, so as not to break through at high loads. Therefore, in order to check its safety margin, according to the rules, pressure testing is carried out by a pressure of 1.25 from the working. For example, if the maximum pressure in the system is 10 bar, then pressure testing is carried out by 12.5 bar. This guarantees that at the maximum pressure, the pipeline does not burst and the system will not flow.

True, there is a nuance here. If the system has non.Standard working pressure (there are already systems with indicators up to 45 bar), then this rule is not always possible. In such cases, you need to focus on the recommendations for crimping from the manufacturer.

Sometimes installation organizations offer to miss the crimping as an independent stage, having carried out the so.Called “testing with vacuuming”. It is assumed that if the system holds a vacuum well, this in itself confirms its tightness. However, this is fundamentally wrong.

After stopping the vacuum pump, the pressure in the system will increase due to the gradual evaporation of the gases, which are contained in oil. This process will compensate for the drop in pressure during leakage. Therefore, using vacuuming, it is impossible to assess the tightness of the contour.

Reservation and vacuuming

For pressure testing, nitrogen in cylinders with a capacity of 5, 10 and 40 liters is used, and necessarily with minimal Mlieights and moisture: special purity of 99.99% 1 variety. A cylinder with nitrogen under a pressure of 150 bar and above is connected to a service port of a refrigerator through a reducing high.Pressure gearbox with a safety valve configured for a power pressure of 70 bar, as a rule a special adapter is used for crimping with nitrogen, so that the testing passes through a regular conditioning hose with a thread ¼ inch.

To facilitate the process of crimping and searching for leakage in the photo below, a nitrogen set of STDL is presented. 70, which includes a nitrogen gearbox, an adapter of ¼ inch, a memorable manometer with a hose, an adapter on a small cylinder, a clutch with a thread of ¼ inches.

If external conditions are changed, it is allowed to use a correction coefficient of 0.1 bar per 1 ° C of temperature changes for a quick assessment. T.E. The pressure adjusting value will be equal to: (T ° C during the supply of pressure. T ° C during verification) x 0.1.

In the case of the use of a digital manometric station, it is possible to significantly reduce the time of crimping to an acceptable interval.

To account for changes in parameters, it is necessary to adjust the obtained values ​​in accordance with the Law of Charles:

In this case, the values ​​of temperatures and pressures should be expressed in absolute values.(Chevesia to transfer to Kelvins)

During the tests according to devices, the pressure in the system decreased from 39 to 38 bar, while the ambient temperature changed from 25 ° C to 19 ° C.

We read the temperature values ​​in kelvins and ABS. Pressure values:

We calculate the value of pressure in the bars at the end point of time P2, in which the identity of the formula (1) will remain:

Compare the measured value with the calculated:

The values ​​are approximately equal, the differences are most likely caused by the error of measuring devices, but the tightness of tightness, for example, is not excluded, the presence of porosity in soldered joints or insufficient stiffness of the pipelines.

Conclusion: the contour is sealed, but requires control.

If a decrease in the pressure is detected after correction by temperature, you should carefully check all potentially weak places of the system: detachable and soldered joints, plugs, rollers, etc.P. The largest leaks are detected by ear and to the touch. Another affordable way to search for leaks. Rinse, the appearance of bubbles clearly indicates source of leakage. You can also add a small amount of refrigerant to the circuit with a nitrogen, and then search the electronic current (there are certain nuances associated with the separation of heterogeneous gases). Long routes and large systems are recommended if possible to break into sections to facilitate the search and eliminate leakage.

Be sure to keep in mind that this type of work should be performed only by qualified specialists who have undergone appropriate training.

After all the procedures are completed, the nitrogen is removed from the system and vacuuming is carried out.

Vacuuming the air conditioning highway

Vacuuming the refrigeration circuit is carried out with the aim of removing air, unconscious impurities, as well as to lower the moisture content in freon highways.

To remove moisture, it is necessary that water moves from a liquid state to a gaseous. With normal atmospheric pressure 760 mm HCC. (approx. 100 kpa) water boils at 100 ° C, respectively, to remove moisture under such conditions, it was necessary to heat the water to this temperature, which is not possible due to the possible failure of the equipment parts. In real conditions, for these purposes, the pressure in the circuit is reduced to the required value, in which the boiling of water occurs at a significantly lower temperature. For example, at a pressure of about 4.6 mm ug.With.(approx. 600 PA), water boils already at t = 0 ° C. Note that in this way only a relatively small amount of moisture can be removed, in other cases, it is necessary to use filter-drying filters, as well as the conduct of additional procedures.

The vacuuming time of the system depends on the internal volume of the refrigerator, the productivity of the vacuum pump, the ambient temperature and the amount of moisture in the circuit. The lower the temperature on the street, the more deep the vacuum needs to be created. As a rule, when installing new equipment using high.Quality components and compliance with the manufacturer’s recommendations, the vacuuming time of domestic air conditioning systems using digital stations does not exceed 30 minutes. The same process to achieve the necessary depth of the vacuum of semi.Industrial and industrial air conditioning systems can be more than two hours. The device for checking the depth of the vacuum is presented below.

Manometric station digital manometric station with the possibility of simultaneously measuring two temperatures and pressure

Vacuuming is a mandatory procedure, especially when installing equipment operating on new types of refrigerants, such as multicomponent R410A. The polyester oil used in such systems is extremely hygroscopically (quickly absorbs moisture from the environment), when interacting with air, its components turn into acid, which destroys the compressor details, which leads to the premature failure of the equipment.

Below is the option of connecting a vacuum pump through a manometric collector:

The connection diagram of the vacuum pump to the system

We connect a manometric station through a low.Pressure hose (usually blue) to a service port of the air conditioner.

We connect a vacuum pump via a gas station (usually yellow) to the station.

Turn on the vacuum pump and open a low pressure valve at the station.

After the end of the process, we must first close the valve and only then turn off the pump.

Equipment for vacuuming air conditioning:

The station in the work of a high.Performance vacuum pump of the US CPS company with a connected digital station in working mode.

Basic rules for placing a refrigerator in the kitchen

In fact, there are not so many rules for installing the refrigerator, but their observance will extend the life of the device and reduce the likelihood of a breakdown. At the same time, we draw attention to the fact that we will talk exclusively about separate.State refrigerators in our article. It is precisely the strict requirements for the placement of the placement.

There are practically no requirements for built.In models, since such devices initially involve integration into a specialized cabinet, which will simultaneously perform both a decorative and protective function.

So, what is the “afraid” of a popular device designed to preserve products with cool and fresh?

Neighborhood with heat sources

Alas, the principle of operation of the refrigerator involves the creation of cold temperatures inside the device at the expense of (including) some surrounding air on the outside. Accordingly, the placement of the refrigerator in the immediate vicinity of the battery or slab will not only prevent the high.Quality dissipation of hot air, but also create additional heating of the external walls of the device, which clearly will not benefit its long and reliable operation.

Important! No matter how small the kitchen room is, try so that between the refrigerator and such serious sources of heat as a stove or battery, there are cabbages, tables or other furniture items with a width of at least 20-30 cm-this will significantly increase the duration of the kitchen appliances.

Tight fit

No furniture should be “pressed” to the refrigerator too tightly. The minimum permissible gap on the side walls of the device is 2-3 cm. The same requirement applies to the neighborhood of the device with the wall or window. In this case, you should maintain a decent distance between the back wall of the refrigerator and the wall of the kitchen. So, for modern models, the minimum size of the free space “behind” is the same 2-3 cm, and for refrigerators with a radiator. 10 cm or more. It is also required for high.Quality heat removal from a working device.

How to lower Freon?

If the refrigerator refueling was required, then this means that the refrigerant has already evaporated. Therefore, nothing needs to be lowered. In situations where the minimum concentration of the substance remains in the circuit, it gradually disappears, for example, during blowing or during crimping. Freon is pumped before replacing the motor. This is done using a hose. It is advisable to take him to the street so that the refrigerant is outside the room.

When the circuit is refueled, turn on the refrigerator for about 60 minutes. Assess the state of the system. If the capillary or filter is heated, and the connecting element with the motor remains cold or even covered with hoarfrost, this indicates that there is too much refrigerant. Freon Freon to the required suction pressure. Do this until the situation stabilizes.

Now you know what Freon is in the refrigerator, why it is needed, and how to season it. Better trust this type of repair to experienced craftsmen.