Quantity of freon in air conditioner: Definition and refueling

The creation of a comfortable microclimate in residential premises is often becoming a difficult task. In the summer, the usual fans are not able to cope with the work, in the winter another problem appears: radiators cause severely underwent air. Salvation in such cases is the purchase of climate control system. Modern climatic equipment in recent decades has gained the right to be called an almost indispensable “assistant”, however that it functioned efficiently, the system should be ensured by normal conditions. Freon leaks for climate techniques are not emergency, but the norm, so it is necessary, although the infrequent, but regular refueling. To ensure installation trouble-free work, owners need to learn how to determine the amount of freon in the air conditioner.

Currently, there are several types of freon or refrigerant. In the system, this gaseous substance is not only a working element of air conditioning, but also a peculiar lubricant for the compressor that is in any installation.

Any split installation consists of two blocks. One is always installed outside the room, and the other inside it. From one compartment to another, there is a refreshment, on which freon directly and circulates, as well as an electrocabyle and drainage system. For freon wiring, only small cross-section tubes in diameter made of copper are used for.

The amount of freon into split system directly depends on the length of the track for this gaseous substance, as well as from the power consumption of the compressor. For example, the standard route for the air conditioner is a length of up to 5 meters. Even if you purchase a new system, then increasing the length of the pipeline for Freon, you will have to do it and refueling it to the system itself. That is why there is no unambiguous value for all systems that could be guided by refueling or full refueling.

Directly at the factory manufacturers, the installation itself is usually refilled, taking into account the existing length of the track. It is worth noting that in air conditioning systems, the length of copper pipelines is not less than 3 meters.

Thus, it turns out that each meter of the copper track at the plant is refilled into the system 0.15 kg of refrigerant. Plus, the power index of the built-in compressor is added to this mass. If you take the parameters in a general ratio, it turns out that a powerful installation has freon somewhere 0.5 kg.

Naturally, over time, the gradual evaporation of freon occurs in each installation. This process is diminishing if, when installing the system, errors and joints of pipelines were made, more precisely, their compound was made poorly, and the gas was gradually evaporated through the leaving gaps. Of course, in these cases, before you make a new refuel or refueling, you need to eliminate all existing flaws in the system.

Refueling and refueling air conditioners

At the factory, air conditioners are filled with chladone, given the contour length. On each meter it accounts for 0.15 kg of freon. In addition, the capacity of the compressor takes into account. If we consider the averaged values, then in each split system there is about 0.5-0.6 kg of refrigerant. The exact number is indicated on the plate (nameplate), which is easy to find on the equipment housing.

Causes of reducing the amount of chladone

Natural, gradual evaporation of freon is considered the norm. The exact figure is impossible to determine: the annual loss of chladone is approximately 5-7%. This process can significantly speed up the incorrect installation of the installation. the poor quality connection of the elements of the track. In this case, the first task is to eliminate leakage. There are other factors leading to the loss of refrigerant.

  • Natural wear of elements. rolling, fittings (service valve without safety plug). Cause. low-quality components that use not too bona fide manufacturers. From marriage made during installation, this case is easy to distinguish. As a rule, the owners do not face such a problem immediately, and after 3-5 years after the purchase (installation) of the system.
  • Random dynamic impact. Fallen “pests” become the fallen icicles. Other options for a real threat. a large stone, running into the outer block of the air conditioner of a hooligan, a brick that fell from the roof and t. D. It is not difficult to determine such damage, since clear traces remain on the “crime scene”.
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The most “popular” cause remains marriage allowed during the laying of the track. Some experts generally argue that it is simply impossible to achieve complete tightness when installing a split-system in an apartment / house.

Mobile designs and simple air conditioners designed for windows do not require refueling. They are filled with chladone and tightly seal at the factory. Exception for these aggregates is one. refueling after repairing the compressor, or after replacing other elements.

Problems associated with freon deficiency

A gradual decrease in the number of refrigerant at first does not lead to big problems. They start with time when freon in the system remains very little. The working substance performs another important feature: it cools the compressor. When the refrigerant is not enough, the chief device becomes difficult to work in different modes. This leads to overheating of the equipment, and then the compressor encourages.

Often the owners are faced with the most unpleasant situation. with the release of the compressor. In this case, they will have to repair the device, and it will cost half the total air conditioner. This is the consequences try to avoid timely refueling freon. It is believed that ideally it should be held every one and a half, a maximum of two years.

How to check there is freon or not?

The presence or absence of freon in the system can be checked, carefully pressing the long sharp item on the low pressure highway. If Freon is not, you will immediately understand. See the refrigerant with your own eyes on some models, finding the receiver.

Air conditioning system will not work if it is not enough freon. Air conditioning will overheat, which will lead to a breakdown of the compressor or the entire equipment as a whole. According to experts, it is necessary to replenish the necessary amount of freon at least once a year, and if the car is new. in three years.

Checking the device depending on the defect

Consider the possible actions of the mechanic or user split system, taking into account all those faults that were noted above.

But before you need to take note of the following points:

  • Similar equipment are serviced by experts. About self-cleaning split-systems we told here.
  • The system is refilled by chemically harmful substances.
  • The device runs from the network with high potential.
  • Knowledge of electricians, electronics, mechanics.
  • There is a danger to harm health.

Calm, reliable and qualified way to check the system. this is, of course, appeal to professional craftsmen.

However, it does not exclude the possibility of using personal skills and skills at their own peril and risk. For the second option, consider ways to check equipment for a malfunction.

problem. high level of mechanical noise

So, if the machine publishes increased noise, not characteristic of normal operation, with high confidence you can state the destruction of internal components.

These can be bearing nodes, valve group parts and others. In such cases, the only possible option is to replace the unit.

Attempt to repair the unit that has received internal damage. To access internal content I had to cut the body with cutting circle. Meanwhile, after repair, it will have to hermetically brew the case

Increased noise may be marked and due to excessive mass of the refrigerant, refilled in the system. However, in this case, the nature of noise is clearly different from mechanical and after a short operation, the compressor is usually disconnected by the automation system by the high pressure parameter.

Check for these two options is accompanied by the following actions:

  • Connect a manometer station to the side of the discharge.
  • Close System Crane on Contour Line.
  • Control pressure testimony.

With defective valves, the noise level usually increases, but the pressure is actually not changing or changes slightly. If the bearings are faulty, the increase in noise will be accompanied by pressure growth.

Using a pressure gauge station for checking the amount of refrigerant in the circuit, pumpable compressor. Often because of a shortage or excess working substance, the work of the unit is broken

Excessive amount of refrigerant in the circuit will also show an increase in pressure with increasing noise and the subsequent disconnection of the compressor by the automation system (pressure switch). about the device of this node, its principle of operation, connection and adjustment, we wrote in the next publication.

Problem # 2. Overflow or Freon Lack

The “malfunction” of this kind is determined again using a pressure gauge station. You need to turn off the split system from the network, wait a bit, then connect the pressure gauge and start the air conditioner. Observe tests on devices.

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The working pressure for the household split system of a specific configuration can always be determined by the technical tag (plate) fixed on the external module housing. There, on the plate, the boundary parameters of the pressure of the contour injection and suction sections are indicated.

Plate with boundary parameters, where the boundary values ​​of injection and suction pressures are indicated. In case of diagnosing faults, it is recommended to access this tablet

If table boundaries are exceeded, this indicates a clear overflow of the refrigerant system. However, the table gives only upper pressure values.

So the lack of refrigerant is already somewhat different. The average domestic suction pressure rate for domestic split systems of approximately 4-6 bar (ATI), depending on the configuration.

When the pressure index of the suction part of the contour on the pressure gauge station is significantly less than the specified range of 4-6 bar, this factor indicates a lack of refueling.

Such a state also affects the performance of the compressor when abnormal noise and periodic triggering of protective systems.

Problem # 3. no launch of a refrigeration compressor

Common defect split systems associated with a compressor. the complete absence of the launch of the refrigeration compressor. At the same time, the system is successfully included in the cooling mode, all automatic devices work normally. Another question is a condenser fan.

The fan split system is stopped immediately when the air conditioner is turned on. this is a clear sign of the failure of a starting capacitor through which the compressor unit is powered by a current

With this state, the split system of the condenser fan shows a few unusual operation. At the time of starting the air conditioner of the fan, the fan begins to rotate, but almost immediately rotation stops.

The indoor unit of the air conditioner continues to function when the external block is not working compressor.

This defect is usually manifested in systems that have been successfully spent several years (more than 5). And the reason for this behavior of the system is a starting capacitor included in the compressor electric motor power supply circuit.

Diagnose condenser malfunction simply. How to do it. just below.

Problem # 4. Multivatte Crane Stator Winding

How to define such a malfunction. the question is far away. For example, when a closure of 2-3 turns at a short plot take place, determine the defect is practically not possible without using a specific tool.

Types of Freons for Filling

The company “Masterholod” works with equipment filled with such refrigerants:

The most popular view of Freon, in Russia, currently, in this form of freon, works more than half of the refrigeration equipment.

Currently, its use is limited to the Montreal Protocol, allegedly due to its ability to destroy the ozone layer.

R410A

Freon came to replace R22, has a number of disadvantages, such as,

multicomponent composition and high cost.

All household air conditioners produced currently are filled with this refrigerant.

Refueling these refrigerate costs more than the previous one.

R134A

Refrigerant used in autoconditioners.

Disadvantages-multicomponent composition, high cost

check, freon, split, system

R407C

This type of freon is used in industrial refrigeration systems, rarely in mobile air conditioners.

The main disadvantage is not refundable, when leakage it is necessary to evacuate the entire remaining Freon to completely fill the system.

Oil used with this freon is very hygroscopic.

That is, very much absorbs moisture, even from the air.

R600A

Chemical name. Isobutan, this gas is natural, it is not necessary to synthesize.

Used in household refrigerators and mobile air conditioners.

Flaw. fuel when connecting with air.

check, freon, split, system

Your application will be registered and in the near future you will be called back to coordinate the details of the order and the time of the arrival of the service brigade.

Calculation of the cost of refueling

Since split-systems that work, mainly on two types of refrigerant R22 and R410A, are supplied to the territory of Russia

are valid when performing work and some satellite districts outside the Moscow Ring Road (clarify from the dispatcher). If necessary, access to the Moscow region is charged additional surcharge. Depending on the remoteness of the place from the Moscow Ring Road and the conditions of transport infrastructure in this area.

You can not pay for the air conditioner refueling

This package includes:

  • Cleaning air conditioner using;
  • Disinfection of the indoor unit;
  • Diagnostics of air conditioner;
  • Refueling if necessary (consumption of X / A is included in the cost of the package).

Types of Freons for Filling

Works with equipment filled with such refrigerants:

The most popular view of Freon, in Russia, currently, in this form of freon, works more than half of the refrigeration equipment.

Currently, its use is limited to the Montreal Protocol, allegedly due to its ability to destroy the ozone layer.

See also  Split system does not cool the causes of the air conditioner

R410A

Freon came to replace R22, has a number of disadvantages, such as,

multicomponent composition and high cost.

All household air conditioners produced currently are filled with this refrigerant.

Refueling these refrigerate costs more than the previous one.

R134A

Refrigerant used in autoconditioners.

Disadvantages-multicomponent composition, high cost

R407C

This type of freon is used in industrial refrigeration systems, rarely in mobile air conditioners.

The main disadvantage is not refundable, when leakage it is necessary to evacuate the entire remaining Freon to completely fill the system.

Oil used with this freon is very hygroscopic.

That is, very much absorbs moisture, even from the air.

R600A

Chemical name. isobutane, this natural gas, it is not necessary to synthesize.

Used in household refrigerators and mobile air conditioners.

Disadvantage. fuel when connected with air.

Your application will be registered and in the near future you will be called back to coordinate the details of the order and the time of the arrival of the service brigade.

Calculation of the cost of refueling

Since split-systems that work, mainly on two types of refrigerant R22 and R410A, are supplied to the territory of Russia

are valid when performing work

How to check hvac refrigerant charge level on mini split DIY

and some satellite districts outside the Moscow Ring Road (clarify the dispatcher).If necessary, access to the Moscow region is charged additional surcharge. Depending on the remoteness of the place from the Moscow Ring Road and the conditions of transport infrastructure in this area.

You can not pay for the air conditioner refueling

This package includes:

  • Cleaning air conditioner using;
  • Disinfection of the indoor unit;
  • Diagnostics of air conditioner;
  • Refueling if necessary (consumption of X / A is included in the cost of the package).

How to visually check the air conditioner

To discover signs of leakage of freon, you should not have special skills and tools. First of all, before detecting leakage and make appropriate conclusions, you need to make sure that the air conditioner is configured in accordance with all the requirements.

  • It is necessary to turn on the cooling mode;
  • Set the minimum operating temperature on the control panel;
  • Put the maximum speed of rotation of the shaft;
  • Visual inspection of air conditioner on Freon leakage.

Based on the above settings, the first sign that freon’s leakage occurred is the fact that the air conditioner stopped cooling. In this case, it can be noted that the device is simply started to ventilate the air of the room (the room temperature does not decrease).

But at the same time it is necessary to know the following rules:

  • Room temperature should be higher than the indicators specified on the control panel;
  • Split system should work only on that area on which its power is calculated;
  • In some cases, it is necessary to wait a couple of minutes to turn on the compressor system in the outer block;

On the evaporator of the indoor unit may form. The operation of the indoor unit in this case is accompanied by an external crash and noise. In order to check it out, you must open the front panel of the block where the filters are located. If you are not a specialist. it is recommended to perform this action when the split system is turned off.

Refreshes a thin tube of an external block. Such a situation may occur if the external air conditioner unit is in open access. But in this case, it is necessary to make sure that the tube does not pull off during the period of operation of the split system.

Based on the above, it can be concluded that external signs of the lack of freon in the air conditioner may be several.

These features are a reason for calling a specialist from the service center. Specialist will be able to make final conclusions after a complete inspection or verification of the main parameters of the air conditioner.

Simply call masters

Replace Freon yourself at home easy. Even taking into account the fact that you can burn. The main problem is that it is not very profitable. On average, call the masters does:

At the same time, another problem is that it is difficult to find on sale Small phonon cylinders. It is sold by big cylinders. It costs about 5000. If you have one ordinary air conditioner, then it is unprofitable.