Refueling car air conditioner with your own hands. How to fix car air conditioning freon? Saving funds compared to the challenge of the master

Even the most expensive and reliable air conditioner in the car over time loses its power. The first thing that is noticed is the time costs of changing the microclimate in the cabin. Find information on how to spend the air conditioning guide with your own hands, as a rule, is not so easy. Therefore, most drivers solve this problem simply - they turn to the car service. But this is the most cardinal way to solve the problem. In this article, I will try to help motorists and tell how to implement such a necessary process yourself.

To refuel the air conditioner, it is necessary to understand the principle of its work. It is very important to determine whether air conditioning is really necessary. By destination, the air conditioner can cool the air and maintain a certain temperature in the cabin.

The liquid that circulates in the air conditioner system, plays a key role in cooling. Despite the reliability of air conditioners, time takes its own, and the leakage of freon can happen soon. The normal annual loss is 15%, but if this figure changes in the most side, then something to do with the auto air conditioner. Standard time to refuel the Freonon aggregate - three years of work. But if the aggregate is old, the refueling must be carried out more often. With any outcome, the refueling occurs equally.

Follow the air conditioner does not make sense if any part of the system is damaged and it is incorrectly functions. If the problem is not very serious, it can be fixed independently, but when it happens serious damage or breakage, it is best to contact a specialized salon.

Cold air circulated in the cabin returns to the system. This is due to the fan. Follow the air conditioner follows only when it stops functioning correctly, that is, ceases to cool the salon. But you should not wait for the full breakdown of the entire system or the exit of it. It is best to carry out preventive refueling that will extend the time of your system's life. There is such a refueling every two years. It should also be checked rubber seals, whose life is also limited. Due to temperature drops and vibration, they may change for the worse.

Freon replacement not only helps the cooling system. Since the Freon contains oil, its replacement allows you to keep all the elements of the system in excellent condition. The service life of the device is significantly increased.

If the refueling is carried out on your own, help this may like no other instruction manual for the car. Or rather - instructions for refueling autoconditioners.

Search and eliminate freon leaks

Strong leakage of freon has its reasons. You can determine them, but in mind the most common can be found:

1. Bad insulation of pipeline systems
2. Damage to the tubes in the air conditioner system
3. Corrosion on the condenser

Even if the car is equipped with climate control, this system will not help the driver find the leakage of Freon. To search for such malfunction, the equipment needs completely different.
The leak detector is a device that can define air with freon even with its minimum available in it. The sensitivity of such a device is so great that can lead you straight to the place of leakage.

If there is no way to use the leak detector, you can use other devices. Fully referring the system, an ultraviolet dye is added to the composition.
Technology refueling should not be changed. Several times, turning on and turning off the air conditioning system, all joints and places of its action are shouted with an ultraviolet lamp. If the leakage is available, the places of disappearance or weathering of freon will be highlighted yellow green Or the same color fog.

Strong leaks in the car are best repaired on the service. At the same time, there is a chance to undergo diagnosing climate control system. Minor damage can be repaired independently. If the system has a hole or crack, it closes with a small piece of metal tube. The diameter must correspond to the repaired place. The tube is held using screeds or clamps. The edges are cleaned with alcohol and are cleaned with sandpaper. Alcohol degreases the edges of the joints. Halves of couplings are attached by the usual tape, and after applying glue, clamps are fixed.

What freon use

In order to fill your own auto air conditioning, you need to decide on the type of freon.

The old R-12 model was forbidden, and it was replaced with a more modern R-134A. If your car is released until 1992, then it is necessary to look for the old and "forbidden" freon for it. To find out which freon is required for the car, which was released between 1992 and 1993, will help the sticker on the inside of the hood. For more "advanced" drivers, it is not difficult to determine the type of freon for refueling simply in the appearance of the fitting for refueling. The new freon is refilled in air conditioners with a high fitting with a large diameter.

Also, ammonia use ammonia to refuel. The very first air conditioner who saw the light in 1929, used ammonia for his work. The development of refrigeration technology was very braked due to the fact that the substance was unsafe for human health. Freon was synthesized in 1931. It was completely safe, and the problem was solved. Since then, up to four dozen freon has been displayed. of different typeswhich differ in each other properties and chemical composition. The cheapest options have satisfied all for quite a long time. However, their properties were destroying, so over the past 15 years they were blocked.

The evolution of cooling substances is very closely related to the environment. One period of development of this type of industry distinguished itself the fact that at that time Freon from the cars vinyl even in the appearance of ozone holes. In 1987, a law was adopted, which forbade the use of destructive substances. Therefore, the brand of Freon R-22, which was the most popular, had to be replaced. Those refrigerants that comes from Europe are now less convenient, since they are mixtures of various freons. However, each of the refrigerants increases productivity, eliminates the fire, determines the pressure in the circuit.

Instructions for refueling

The work of the auto-air conditioner is not much different from the refrigerator. Cooling system is filled special fluid - Freon. The composition is dissolved with refrigeration oil, thereby becoming a consistency and lug. And such an oil lubricates the compressor. When the air conditioner is turned on, the freon is condensed, in a liquid state it goes into a dryer, and then flows into a car dealership. In the evaporator, Freon turns into a gas that can be very cold.

To start the process to start a refueling, you should find out how much fluid requires the system, and only after that pour it. You can learn this information on the same tablet under the hood.
If there are no signs, you can find out the necessary quantities in the manual or at the dealer. The norm for cars in Russia is 750-1000 grams, but it is very definitely not necessary to calculate everything.

The next stage of preparation is to search for the required set of tools. What do we need?

1. Test Connector, Meteorological Station
2. Hoses and adapters
3. Cranes and Balon Freona

Mete station will help meter the pressure in the system. If you do not want to collect a set for refueling from parts, you can buy everything ready in the car dealership.

Air conditioning refueling occurs in several stages. Each of them should be considered independently.

• Initially, it is necessary to find a low-pressure highway, then we clean the space around it and remove the lid.
• We put on the fitting cap from the cylinder with a filling hose.
• The motor is included on the turnover of 1500.
• The maximum allowable air circulation value is necessary for refueling. Valve low pressure Opens, the balloon unfolds the crane down, and the crane opens, but the engine should work.
• Pressure counter during refueling should not exceed 285 kPa.
• The refueling is considered complete if the air in the cabin reaches 5-8 degrees.
• If in the dryer window the liquid is transparent and without bubbles, then the refueling process is completely complete.

If the system does not work at the end of the procedure, then the reason should be sought in climate control, that is, to repair it.

Video "refueling automotive air conditioners"

On the recordings, the auto mechanic shows how to correctly fill the car conditioner by Freon. Look at this video and can easily repeat every step of replacement yourself.

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The main advantages of automotive air conditioners:

• creating a comfortable temperature inside the cabin;
• maintaining the optimal level of moisture;
• preventing the fogging of car windows;
• getting rid of exhaust gases and unpleasant stocks in the cabin.

But this unit periodically needs maintenance. If the air conditioner cool the air in hot weather, it is necessary to refuel the air conditioner with your own hands.

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Principle of operation of autoconditioners

Before starting refueling an auto air conditioner, we will try to figure it out with the principle of his work. Everything can be allocated 3 Main parts: compressor, condenser and evaporator. Of course, other important details, such as a receiver or dryer, are also included. So, how do they work?

1. Throughout the system in closed loop circulates a special refrigerant - freon;
2. Inside the compressor conditioner gas compressing occurs, after which its temperature becomes higher;
3. Then the stream of hot air goes to the condenserwhich highlights heat from it and condenses;
4. Thereafter freon goes to the contour and then under high pressure it turns out in the expansion valve;
5. There he is sprayed and passes further into the evaporator, where the refrigerant evaporates and the air is cooled due to heat release;
6. Last stage freon in Cold Gasit is sent to the compressor over the direction of low pressure, after which the whole process is reversed.

Note! For good job The compressor unit should be repaired in a timely manner and check the tightness of the tubes.

When is the moment for refueling the air conditioner?

Freon plays a key role in the air conditioning system and over time it can happen. The normal annual loss of freon is 15%. Make the air conditioner in the car follows 3 years later, and in the case of an old unit, the refueling must occur more often. However, with any outcome, the air conditioning refueling is made with their own hands.

If you notice a significant leakage of freon, then this may mean the following:

• leakage in pipeline connections;
• system tubes are damaged;
• condenser is covered by corrosion.

The refueling of automotive air conditioners does not make sense if leaks are observed in the system. Minor problems can be eliminated independently, but more serious breakdowns It is better to trust specialists.

Preparation of the necessary equipment for refueling

To check the pressure in the air conditioning system, as well as for its subsequent refueling, a special tool kit is used. It includes:

• metrological station or test connector;
• hoses;
• adapters;
• cranes;
• balon Freon.

The main function of the metric station and test connector is the pressure measurement in the system. Often in auto shops you can see the ready-made sets for refueling air conditioners that include all of the above. Their cost begins from 30,000 rubles.
It is recommended to use Freon R-12 for cars until 1992 and R-134A for more modern.

We will describe in more detail the equipment assembly stages:

• on the top of the balonchor with freon, it is possible to notice the plane that must be pierced by a needle adapter when connected;
• then adapter is screwed to the cylinder and attach the hose;
• the inverse end of the hose, respectively, connect to the metrological station;
• there are also the second hose.
• equipment collected.

However, this is not all. Pressure counters must also be calibrated. The external air temperature is exhibited using a calibrator wheel. Can be completed with indicators on-board computer (if available).

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Step-by-step process of refueling

Click on the picture to enlarge.

So, go to the most important issue - how to fix the air conditioner by Freon? Our instruction is applicable for any models.

1. We are looking for a low pressure hut and remove the cap from it. Do not forget to cleanse the space around this area, because even minor dirt particles when entering the air conditioner can output a compressor.
2. We put on the fitting the filling hose and the system is ready.
3. We start the motor and raise the turnover to 1500.
4. Include air recirculation to the maximum value. To do this, open the valve responsible for low pressure, turn the cylinder with freon to the lower position (the crane down) and does not rush open the crane. In this case, the motor must remain enabled.
5. During the process of refueling, follow pressure meter. Pressure indicators in the highway should not exceed 285 kPa.
6. After some time, cool air will start to the salon. If the air temperature from the blower reaches a mark of 5-8 degrees, then closed the crane.
7. In the filter-desiccant window, you can see a transparent liquid. ABOUT touching in it bubbles says that everything went successfully.

In some cases, the cooling system can continue to work faulty, then attention should be paid to climate control (probably it should be repaired).

See also video recording of the refueling of the automotive air conditioner in the garage:

The refueling of autoconditioners by freon or any other refrigerant is carried out as necessary once every 3-5 years. In a fully suitable air conditioner, a leakage rate is considered to 15% refrigerant per year, especially if the car's age is older than three years. The fact is that in the design of the car air conditioner there are many tubes, hoses, pairs and rubber gaskets.

Under the conditions of hard operation (winter - frost, in the summer - heat, large temperature differences, constant vibration) and such leaks occur.

In this article, we will tell about how to fix the car air conditioner by Freon, how much it costs what equipment is for refueling automotive air conditioners, and whether it is possible to fill them alone. And at the bottom of the page be sure to look video instructions At the refueling of autoconditioners with their own hands.

We also note that air conditioning refueling may also be required after repair or depressurization of the air conditioning system in the car.

The refueling of the auto air conditioner begins with inspection and diagnostics of the system. Since the air conditioner in the car the device is quite complicated, then when it refueling, the diagnosis is limited only to the search for indirect signs of faults and possible refrigerant leaks.

First of all, you need to open the hood and find two service ports (high and low pressure) and air conditioner compressor - usually it is located in the area drive belt additional equipmentfrom which the compressor pulley rotates.

• Carefully unscrew the plastic caps from service ports, after which it connects the station to refuel auto-air conditioners (read more about the equipment below the text).
• Alternately open ports of low and high pressure, and the pressure of the refrigerant is determined according to the pressure gauges. The presence of pressure in both ports indicates that there is a refrigerant in the system, and there are no big leaks.
• Next, drive the car engine, includes air conditioning and watch the operation of the air conditioning system. First of all, pay attention to the operation of the compressor (inclusion of the drive clutch) and to change the pressure in the system according to the testimony of pressure gauges.
• After switching on the compressor coupling in the low pressure circuit of the auto-air conditioner, the refrigerant pressure should decrease, and in the high pressure circuit - increase. The pressure in the high pressure circuit below is 10-12 bar indicates an insufficient amount of refrigerant in the system.
• Hand to the touch is checked the temperature of the low pressure circuit tube (thick tube). If she is warm, then, most likely, this also suggests that there is little refrigerant in the system.

The insufficient amount of refrigerant in the system leads to the fact that the compressor of the autoconditioner constantly works, trying to pump pressure, but it cannot pump it (at the same time air conditioning in the car does not cool). It is very bad, as an additional load on the engine appears (and constant), and the compressor is not allowed from the refrigerant to lubricant, which significantly reduces its resource.

Order of refueling of autoconditioners Hladagett

To refill autoconditioners on most modern machines The refrigerant R-134a is used (Tetrafluoroethane), but according to the old manner, everything is called Freon. To fill the air conditioning system a passenger car Small or middle class will be required by an average of about 0.5 kg of refrigerant.

Information about the refrigerant type for the air conditioner of your car and the norm of his refueling you can learn from the service book to the car. Also, this information is often indicated on the plate posted on inner side Hood.

The refueling of autoconditioners by the refrigerant consists of the following steps:

1. Pumping refrigerant residues from the air conditioning system. Modern stations for refueling auto-air conditioners in automatic mode pump out the old refrigerant for its weighing and removing spent oil from it.
2. System vacuuming. This is a very important stage of fueling the autoconditioner. As a result of this operation, air and moisture residues are removed from the system. To achieve a vacuum required depth may be needed from 10 to 30 minutes (depending on the power and class of equipment), it is impossible to perform high-quality vacuuming for 1-2 minutes.
3. Testing test allows you to detect leaks in the system. With poor quality vacuum (step No. 2), tightness test may not show existing leaks, which will lead to further failures in the work of the autoconditioner.
4. Oil refill. In the process of operation of the autoconditioner, the oil is refilled in the system (an average of about 15 grams) serves to lubricate the compressor mechanisms. Quite often, the oil is refilled with the dye (tracer) to facilitate the definition of possible leaks in the future.
5. Loading refrigerant. This is the final stage of the refueling of autoconditioners, which runs fast enough. As we have already written above, on average, about 500 grams of refrigerant are needed to refill one air conditioner of the passenger car.

After performing all the steps of refueling, you must start the car engine, turn on the air conditioner (blowing on full power), bring the engine speed up to 2500-3000 rpm, after which you need to carefully observe the system:

• The pressure in low and high pressure ports should be normal immediately after switching on the auto air conditioner compressor. Low pressure pressure gauge should show about 2 bar, and high pressure - 15-18 bar.
• Hand to the touch is checked the temperature of the low pressure circuit tube - it should be cold.
• From the deflectors in the car must go cold air, And the air conditioner compressor must periodically turn off.

The presence of all these signs suggests that the air conditioning in the car is replaced successfully and the driver can enjoy its serviceable work.

As you understand, it is qualitatively focused on an auto air conditioner without availability. professional equipment It will be practically not real. However, the set for refueling autoconditioners can be collected from affordable and inexpensive components independently. At the end of this article, see the video on how to use such a set.

And for the general idea of \u200b\u200bthe value of this kind of services below, we present price order for refueling autoconditioners in large cities of Russia (Moscow, St. Petersburg, Volgograd, Nizhny Novgorod, Krasnodar, etc.).

Reference prices for diagnostics and refueling of autoconditioners

We once again pay attention to the fact that prices are given indicative and may differ from prices in your region.

For high-quality refueling of autoconditioners, first of all, it is necessary to have good equipment. To refuel air conditioning in the car, you can use one of three types of equipment:

1. Automatic stations for refueling autoconditioners;
2. Set of equipment for manual refueling of automotive air conditioners;
3. Disposable set for refueling one autoconditioner with your own hands.

Automatic stations allow you to refuel auto-air conditioners in a fully automatic mode, which minimizes the intervention of the installation statement in the refueling process. But the price of such equipment will begin with a mark of 130-150 thousand rubles.

Maintenance of the air conditioning system at such a station is definitely optimal decision - This will make it not only quickly and efficiently fill your car air conditioner, but it will also significantly express its service life.

Set of equipment for manual refueling of autoconditionersIn turn, it is much cheaper than the automatic station, but also to work with it you need to have a certain experience and skill. This set usually includes the following equipment:

1. Manometer collector intended for the use of freon;
2. Electronic scales for tracking the volume of refilled refrigerant;
3. A cylinder with a refrigerant (the operator refills the refrigerant directly from the cylinder, focusing on the scales);
4. Vacuum pump (for vacuuming system).

Just below, the video shows the process of independent refueling of the auto air conditioner with a refrigerant with such a set.

Disposable sets for air conditioning refuelingNaturally, the cheapest equipment listed above. Such a set, as a rule, is a small one-time cylinder with freon, which through a hose with a pressure gauge connects to the low pressure service port for refueling the system.

The price of such a set is about 1000 rubles, but the effectiveness of such a refueling of the auto air conditioner leaves much to be desired. And all because with the help of such sets, it is simply impossible to completely remove from the system remains of the old refrigerant, air, moisture, and conduct evacuation.

Miracles do not happen, so if you want to qualitatively fix your car air conditioning with a new freon, then you need to use high-quality equipment.

Also for the diagnosis and refueling of automotive air conditioners may need additional equipment:

• Ultraviolet lamp and safety glasses to search for leaks in the system.
• Electronic leak detector reacting to Freon.
• Thermometer moisture meter. Its testimony is necessary to assess the climatic conditions in the cabin before and after refueling the auto air conditioner.
• Oil injector. While refueling the system, it provides an addition to it in it in the required quantity.
• A set of adapters for connecting a gauge manifold to any car.
• Special pullers for separating the tubes of the air conditioning system (are relevant mainly for Japanese and American cars).
• Special puller for valves of service ports.

The need for the presence of a particular additional equipment is determined by a specialist producing fueling of auto-air conditioners.

Video instructions for refueling auto air conditioner with their own hands

The auto air conditioner increases the comfort of driving during the summer heat. Over time, any auto air conditioner loses the refrigerant due to damage to the tubes and other parts.

This device works on the principle of the refrigerator: the compressor compresses the refrigerant (), increasing its temperature. Hot freon passes through the condenser (an analogue of the cooling radiator), where it cools and goes into a liquid state. Liquid gas enters, also being an analogue of the radiator. The transition from liquid to a gaseous state leads to a sharp drop in temperature, due to which the evaporator radiator is cooled to a negative temperature. The compressor fan sucks the floors and blows them the evaporator, then the air goes into the salon, reducing its temperature.

How much is the autocondary air conditioner?

If freon in the system is not enough, and the air conditioner cools the salon badly, that is, 2 options: refuel or turn to a hundred. If you contact the car service, then there for a complete refueling of the automotive air conditioner takes 1500 rubles on average. Some drivers do not fill the system completely, and simply add freon. This is an average of 300 rubles per 100 grams. Experts measure how much freon is lacking in the system, and add it to the achievement of the necessary pressure. That is, if 150 grams of freon will not be enough in the system, then refueling will cost only 450 rubles. Some service beds below, on others - above. However, everyone decides where to fix the car air conditioning. But it can do it for many hundred.

How often refill air conditioner in the car?

During the operation of the autoconditioner, there is a small leakage of freon. The norm of such a gas loss in 1 year can reach up to 15%. So, every three years, if there is no depressurization of the contour, the car requires refrigerant to air conditioning. And when the car is already quite old, the natural leak is even more, so refueling may be required for a year more often, but the method of refueling will be similar.

When there is a big leak of freon, to fill the car air conditioner does not make sense, you must first determine the damaged area and eliminate (this can only be done on specialized service using ultraviolet).

When freon's leak is more norm, then most likely:

• or tubes of the air conditioner system through mechanical / corrosion damage lost tightness;
• or inside the capacitor appeared corrosive processes.

What freon in the car air conditioner?

Earlier to refuel the air conditioner used fluorine-containing freon R-12, although it is more productive, but due to the fact that it is very harmful, in 1992 its application was banned, and replaced the R-134A refrigerant. Therefore, the owners of cars with air conditioning produced until 1992 release, and it is necessary to or independently refuel or proceed to a new type of freon. After all, although they work on R-12, but at the service stations, the refueling of chlorofluoro-containing gas is prohibited. So all new models of machines with refilled by Freon R-134a. By the way, what freon in the car air conditioner of a particular system can be seen on the plate by lifting the hood. Although it is difficult to confuse, because even the filling fittings are different (in the tube under R-134a it is higher and with a large diameter). On the sticker under the hood you can also see the norm of refueling freon in the car air conditioning.

How many freon in the air conditioner car

Before filling the air conditioner with your own hands, it is advisable to determine exactly how much freon in the car air conditioner to calculate with the purchase of the required number of splens. It is possible to look at the norm of refueling freon in the autocondition, as already found out, you can on the table under the hood, where it is indicated both the refrigerant type and its number in the system.

When for some reason there is no table, then find out how much the refrigerant you can also have a car dealer or look at the manual. For russian cars The refueling rate is usually about 600-900g. Although, in principle, accuracy by and large and not needed, because, as a rule, refueling the system is made with their own hands, and not complete filling of the air conditioner. The refueling of the auto air conditioner is made or still at the factory, or after repair, when the gas is completely released, and when planned serviceWe can only pre-install Freon to normal when it can work at full capacity. But with such a partial, we cannot know how many grams of Freon left. Therefore, the air conditioner refueling in the machine occurs by pressure displayed on the pressure gauge. Therefore, if you could not find out the exact numbers and determine the amount of freon in the car's air conditioner, then follow the arrow of the device.

As B. garage conditions There is no possibility to find out the exact amount of refrigerant, it is much easier to determine how much freon is needed to refuel the machine air conditioner according to the testimony of the pressure gauge.

Air conditioner diagnosis

If the auto air conditioning starts to work worse, independently perform diagnostics. Here is a list of basic actions for this:

• Check salon filter.
• Inspection of hoses, tubes, capacitor and evaporator.
• Check the electric motor and fan blades.
• Verification belt.
• Compressor check.

To check the cabin filter, it is pulled out and inspect. Clean filter is inserted back, dirty replace new. For inspection, it may be necessary to remove the radiator grille. For inspection of hoses, evaporator or tubes, you need to remove the air conditioner cover (this procedure is described in the car manual). If the auto air conditioner was installed separately, read the instruction that comes with it complete.

Having found refrigerant leakage through damage to the tubes, replace them entirely or visit the specialized workshop to repair. Do not use adhesives or sealants, they are unreliable.

If damage in radiators, replace them yourself or contact a specialized workshop. Check the belt tension and compare with the machine or conditioner instructions specified in the manual. Get the motor, then raise the speed up to 1500 per minute. Grasp the output of high pressure (a thick steel or copper tube is connected to it). If the compressor works correctly, after 1-2 minutes, the output is heated and the hand will become hot. If you burn your hand, the compressor must be repaired or change. If a little warm - there is too little refrigerant in the system. Clamp the output of the cold pressure to which the thin tube is suitable. After 1-2 minutes, the hand should freeze to pain. If this is not, in the system a large refrigerant leakage and it is necessary for a serious repair. It is also necessary to check the condition of the fan and replace it if necessary. This procedure is described in the car manual or air conditioner.

Pressure check

Before you fighter the auto air conditioner, you need to make sure that there are no leaks in the system, and it is able to withstand high pressure. It is possible to do this for a service station with the help of pressure in the system. This is usually done with nitrogen. That is, nitrogen "pound" into the system and measure the pressure, then waiting for about 20-30 minutes, and if the value on the pressure gauge does not change, this means sufficient tightness. In this case, you can refuel the auto-conditioner on your own or per service station. Usually the service check service is inexpensive - costs about 300-400 rubles. But it is necessary to carry out such an inspection, because if the freon disappeared from the system, then it is necessary to understand whether there is no leakage, and whether it makes sense to "drive" inside the road, if he still disappears in 3-4 days.

To work, you will need:

• capacity with freon;
• pressure regulators;
• hoses for connecting to air conditioning;
• adapters;
• vacuum compressor.

Wakuuming air conditioner

Not all this takes into account, but not less an important procedureIn addition to the rules of refueling freon and the amount of oil in the system, it is also an air conditioner vacuuming!

When in the system of the autoconditioner, less than 50% of the refrigerant remained, then importing and entering the moisture is inevitably. Naturally, it will be able to work, although not only the possibility, but, most likely, the compressor fails, and corrosion is formed on the system tubes, and then the repair will cost much more expensive than evacuation. To remove from air conditioning atmospheric air and wagi vapor vacuum pump.

• Turn on the heater and warm the car so that the moisture condensed in the evaporator;
• Connect the vacuum pump to the compressor stacker, and then twisting the nipple, turn the crane under it (counterclockwise);
• Turn on the pump for 15 minutes, then overlap the valves and turn it off. The procedure is repeated several times. After completion of the procedure, you need to wait 2-3 hours, and only then you can refuel the car conditioner.

Air conditioning systems have two sides: low (shown by a red arrow) and high pressure (a blue arrow indicates on it).

The refueling of the autoconditioner is made in the low pressure highway, therefore, you will need to find the right fitting. To eliminate refueling from high pressure, the size of the inlet holes is different. Some models of the caps of fits are denoted by the letters "H" and "L" or have different color.

When unscrewed the crane of a low pressure line, carefully wipe the cap and the tube plot with a rag so that dust or garbage does not get inside.

Regardless of the car model and external view knots general instructions Upon refueling conditioner car will be similar.

So, to fill Freon to the autoconditioner system, do the following:

• We clean the protective cap and the low-pressure high pressure plot from the mud, then open it.
• On the filling fitting We put the hose from the previously assembled equipment.
• Instructions for refueling autoconditioners are provided for starting the engine and support for 1500 revolutions. It is necessary to keep them in order for the compressor to pump Freon on the highways. Therefore, at this stage, I need help, or you can put something under the gas pedal.
• Include air recirculation by the cabin to the maximum.
• Open a low-pressure trunk crane, turning the cylinder with a refrigerant upside down, and slowly open the valve. The air conditioner begins to refuel (on the engine running).
• Refueling the air conditioner of the car is accompanied by a constant control of the testimony of the pressure gauge.
• The pressure in the low pressure highway should not exceed 285 kPa and ideally should be 10 units less. The excess of the maximum allowable pressure can lead to the failure of the compressor.
• To understand whether the system is correctly refueling, you can see the filter-desiccant window - if there are no bubbles and clear liquid is visible, it means that you are doing everything right.
• As soon as the cabin will go cool air (about 5-8 ° C), and the hose near the low pressure fitting will be cold, like ice, the air conditioner of the air conditioner can be completed.

How to extend the lines of air conditioner service by car?

To extend the performance of the autoconditioner, simple recommendations should be observed independent service:

• periodically wash the car air conditioner radiator (conder);
• in winter call warm room And give to work the air conditioner for 10-15 minutes, at least once a month.

As you can see independent refueling The autoconditioner is not difficult, and if there is no need to look for freon leakage or repair the air conditioning system, you can cope with your own hands. Although, naturally, in order to be the benefit of independent actions, you need to have the entire necessary set to refuel the refrigerant, because its value will cost you at the same price as the air conditioner refueling to a hundred. Therefore, this procedure is beneficial to do with regular, once every 2-3 years, servicing the car air conditioner.

• Vacuum system for leakage cannot be checked! Anything is clear that under vacuum all seals and seals of the system work in one direction, and in the presence of pressure in the system to another. The system can ideally hold a vacuum and if the pressure begins to skip it. Only the pressure hanging can serve at least a guarantee of tightness.
• You do not remove the oil from the system without flushing a system or complete disassembly with the removal of the compressor. Maximum how much can remove oils from a fully refilled system it is 30-40 grams. We emphasize from a fully refilled system, and as a rule, it is already treated with an empty or half-empty system.
• Vacuuming is really a useful thing and allows you to remove some kind of moisture from the system if it were not for one thing. This procedure should occupy at least 30-40 minutes, and not 10-15 which are usually allocated to it at the station.
• Attention. When refueling, many love to add more cheap oil PoE instead of PAG oil with which car air conditioning. For ignorance, and sometimes in order to save, when refueling uses PoE oils (polyester or polyester) instead of PAG oil (polyalkylene glycol), and the other synthetic oil, both are soluble in R 134a, but they do not like to mix each other.

Air conditioners are now installed almost everywhere. Many are owners of home units, but when they do not cool the room, there is a need for repair. In order to save it, you can independently - refuel refrigerant, following the instructions in the article.

What is refilled air conditioning?

When referring to freon, a parallel with refrigerator refrigerant is immediately carried out, but for domestic air cooling, a specific appearance is used, different from the freezer. So, freon brands are most often used:

• R-22. - He showed himself as the most reliable carrier, is distinguished by a high cooling efficiency, in contrast to the refrigerants of the R-8 brand and others. When using it, the production of cold can significantly decrease, and the electricity consumption is to increase.
• R-134 A - A newer kind of freon is safer for nature, since it does not affect its ozone layer. It is now used extremely rare due to high cost.

Step-by-step instruction of air conditioning refueling

Before refueling, you need to check the integrity of the cooling line, view all its tubes. If everything is in order, you can proceed to preparatory work By refueling:

1. Pressing system . If no deviations have been revealed externally, then the system must be loaded with nitrogen gaseous. This is done with reducer and pressure gauge. When the volume of the air conditioner is completely filled, nitrogen will cease to enter the system. With complete sealing, the pressure in the unit will be permanent, if it falls, then the leakage of freon occurs due to damage to the tubes to be sought. Otherwise, if everything is tight in the system, you can move to vacuum;
2. Connecting a vacuum pump . When this device is selected, you need to check that it has a pressure gauge and check valve. The first will be responsible for the pressure, and the second one will prevent the oil entering the freon. The pump connects to the air conditioner through the collector. Before it starts, you need to unscrew the gas valve. When a minimum value is established on the manometer, it will be necessary to use the pump, and block the valve at the collector.

The course of filling works of the split system:

1. Preparation of equipment . To make a refueling, you need digital devices - scales and thermometers, set of keys and pressure manifold. It is better to use a four-position collector to avoid reconnecting and air formation in the tube;
2. Prepare a cylinder with freon . It must be weighed, and then open the valve on it and immediately close to lower the air from the hose;
3. Prepare air conditioning . It is necessary to set the temperature of 18 degrees and turn on the device for cooling the room;
4. Connecting a manometer . On the device, it is necessary to find the largest tube coming from an external block, unscrew the cap from it and connect to the released placement to the released place, and its other end is connected to the phonon cylinder;
5. The process of refueling . Pressure should grow, and when it is 5-8 bar, you need to block the valve on the cylinder and pressure gauge. Cap set into place.

To find out how much gas it was necessary to refuel climate techniques, you need a cylinder again to put on the scales and compare the mass with the previous indication.

Tip: Everything required tools For refueling, you can rent in any service serving air conditioners. Paying these costs will be cheaper than calling a specialist.

How often do you need to refill air conditioner?

His leak from cooling system It can occur for several reasons, but mostly refrigerant is lost during transportation over copper pipes located between the unit blocks. Because of this, it is necessary to periodically perform the recovery of the carrier - even the old models of air conditioners require it to spend this time in 2 or 3 years.

In case the tubes are damaged, freon leaves the equipment very quickly. Their damage occurs during the transportation of equipment, improper installation or strong pressing tubes to each other. Despite the fact that the air conditioner does not vibrate when working, still the rear wall can affect the contact of these tubes. If the freon losses are caused with damage to the tubes, then its refueling without repair will not help.

To see and feel the loss of freon can be in several explicit signs:

• On the outside of the unit of the unit will appear to appear.
• When the air conditioner is turned on, where it is installed, is cooled very slowly.
• The work of the device is accompanied by the smell of gas (see also - how to get rid of the unpleasant odor).

In any of these cases, it is necessary to immediately carry out the repair of the air conditioner or to make it refueling the freon. If this is not done, the device may overheat, and this will lead to its breakdown.

Refill conditioner window type (video)

In a visual material, the wizard for the repair of household appliances tells how to eliminate the leakage of Freon and remove it.

In the case under consideration, Freon leakage occurred due to the peat of his tubes. Repair begins with disconnecting tubes. On one of them made of copper, there is a fitting through which the freon will subsequently will occur. Through this pipe, the refrigerant was injected at the factory. To fix it at home, the shredder valve should be inserted into this branch.

The mass of the required freon is not specified anywhere, so refueling will be carried out by pressure. When disrupting the capillary tube, it broke. To her hermetically combine both of its end, you need a small segment copper tube With a diameter of 6 mm. It is also designed for installation on air conditioning.

The prepared tube segment is planted first by one end of the copper tube, then an intermediate tube is pressed to another and with the help of pliers, thereby providing its reliable installation, and then searched this place.

For refueling the device performs such steps:

1. Include a vacuum pump;
2. Open the valve at the collector using his two-position;
3. The radiators of the device are flushed to cleanliness;
4. Position on one pipe rubber homemade gasket so that in the future the tube does not come into contact with each other;
5. Place the air conditioner in the warm room and refuel the freon.

You can see a visual lesson for refueling:

Air conditioning refueling can be conducted independently by purchasing pre-freon, as well as rent required tools. To prevent errors, it is necessary to successively perform all the preparatory steps, as well as direct steps to refuel.

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