Owning household appliances from a Belarusian manufacturer Atlant has been a popular choice for many years due to reliability and affordability. However, when the cooling system stops coping with its task, the owner is faced with the question of the type of refrigerant used. Understanding what what kind of freon circulates inside the circuit of your model is a critical step before calling a technician or doing independent diagnostics.
Different generations of refrigeration units were equipped with different working substances, which directly affects the cost repairs and the complexity of the restoration procedure. In this article, we will analyze in detail the evolution of refrigerants in the technology of this brand, consider the technical features of each brand of gas and help you determine what exactly is in the system of your device.
You don’t need to be a thermodynamic engineer to understand the basic differences. It is enough to know that incorrect selection of gas or violation of filling technology can lead to compressor failure. Let's look at the main types of substances that have been used by plant engineers for decades.
Evolution of refrigerants in Atlant technology
The history of refrigerator production goes back several decades, and during this time environmental standards and cooling technologies have undergone significant changes. Early models, released in the 90s and early 2000s, most often worked on R12. This was the industry standard of the time, providing excellent cooling performance, but having a high potential for ozone depletion.
Over time, manufacturers were forced to switch to more environmentally friendly alternatives. In middle-aged models that are still actively used, you can find R134a. This gas has become the golden mean between performance and environmental friendliness, although it requires better evacuation of the system during repairs compared to its predecessors.
Modern refrigerators, which occupy a leading position in energy efficiency, have switched to using R600a (isobutane). This substance has excellent refrigeration properties and is absolutely safe for the ozone layer. However, it has one feature that every owner should be aware of - it is lighter than air and extremely flammable.
⚠️ Attention: If your refrigerator was manufactured after 2010, the likelihood that it uses isobutane R600a is more than 80%. Working with this gas requires compliance with strict fire safety measures.
Characteristics and differences between different brands of freon
In order to correctly diagnose the problem or order the necessary materials for repairs, it is important to understand the physical properties of each type of gas. They are not interchangeable without serious modification of the system, changing the oil in the compressor and thoroughly flushing the circuit.
Freon R12 (dichlorodifluoromethane) is characterized by high operating pressure and good solubility in mineral oils. It is non-flammable and non-toxic under normal conditions, but its production has practically ceased due to environmental harm. Finding it to refill is now difficult and expensive.
R134a (tetrafluoroethane) operates at slightly higher condensation pressures. Its compressors already require synthetic or semi-synthetic oils, since it does not dissolve in mineral ones. This is important to consider when replacing the unit.
Isobutane R600a operates at low pressure, which makes the compressor less noisy. It has a high cooling capacity per unit mass, so a very small amount of substance is required for refilling (usually up to 50-60 grams). It is the small amount and low pressure that make it safe to use, despite its flammability.
Why can’t you mix different types of freon?
Mixing different refrigerants leads to a chemical reaction, the formation of acids and sediment, which is guaranteed to cause the compressor to fail within a short time. In addition, the thermodynamic properties of the mixture change, and the refrigerator stops freezing.
How to determine the type of freon in your refrigerator
The most reliable way to find out what substance is used in your model is to examine the technical documentation. However, if the device passport is lost, which happens quite often, the information can be found directly on the unit body.
Pay attention to the nameplate (nameplate), which is usually located inside the refrigerator compartment on the side wall or on the outside rear panel. The exact type of refrigerant and its mass are indicated there in grams. Look for the line “Refrigerant” or “Refrigerant”.
The year of manufacture and model of the compressor can also serve as an indirect indication. Old motors often ran on R12, modern inverter or quiet compressors are most often charged with R600a. If you see the "Flammable" warning sign on the back wall, there is definitely isobutane inside.
- 🔍 Look for the sticker inside the camera on the left or right wall.
- 📄 Check the operating instructions in the "Technical Specifications" section.
- 🏷️ Find the label on the back wall of the case, next to the compressor.
- 📞 Contact the service center, naming the exact model of the device.
If none of the visual methods helped, you can use the manufacturer’s online catalogs by entering the full model number. This will allow you to obtain accurate specifications even for devices released many years ago.
Compliance table of models and refueling standards
For professional repairs, it is not enough to know only the brand of gas. It is critically important to comply charging ratespecified by the manufacturer. A lack or excess of refrigerant will lead to improper operation of the system, increased energy consumption and rapid wear of the compressor.
Below is a reference table showing the dependence of the type of gas and its quantity on the series of the refrigerator. Please note that the data may vary slightly depending on the specific modification.
| Series / Production period | Refrigerant type | Approximate charge weight (g) | Oil type |
|---|---|---|---|
| Old models (before 2000) | R12 | 140 - 200 | Mineral |
| Average age (2000-2010) | R134a | 90 - 140 | Synthetic (POE) |
| Modern (after 2010) | R600a | 30 - 60 | Mineral / Synthetic |
| Large-sized two-compressor | R600a / R134a | 70 - 110 (per circuit) | Depends on the compressor |
It is important to understand that refueling peephole" is categorically unacceptable, especially for modern systems with isobutane. This requires weighing the gas on an electronic scale with an accuracy of up to a gram.
⚠️ Attention: Specifications may vary even within the same series. Always check the specific sticker on your refrigerator before starting work.
Signs of a leak and the need for replacement
Freon is a substance that circulates in a closed circuit. In a working refrigerator, its quantity does not change for years. If the cold level drops, it means that the system has depressurized. The gas itself is not consumed.
The first sign of a problem is often the incorrect operation of the compressor. It may turn on less often than usual, run constantly without turning off, or turn on for just a few seconds and click without starting. This is a defensive reaction or an attempt to compensate for the lack of refrigerant.
Visually you can notice swelling of the side walls of the refrigerator (where the condenser is foamed) or the appearance of oily spots under the unit. The oil leaves the system along with the gas through the leak, leaving characteristic traces.
It is also worth listening to the sounds. Gurgling, hissing, or whistling noises in the tubes may indicate active gas escape. In the case of R600a, this is especially dangerous, since the gas is odorless, and it is impossible to detect a leak by smell.
Features of repairing and refilling the system
The process of restoring the functionality of the refrigerator Atlant requires specialized equipment. You will need a vacuum pump, a pressure gauge station, a scale and a torch for soldering copper tubes. It is most often impossible to simply “add gas” through a valve, as in a car, in domestic refrigerators.
If there was R12 or R134ain the system, the procedure includes finding a leak (often by nitrogen pressure testing), eliminating the fistula, installing a new one filter drier and vacuuming. Only after creating a deep vacuum is refueling done.
C R600a the situation is more complicated. Due to its flammability, work should be carried out in a well-ventilated area, away from sources of fire. Before soldering the tubes, it is necessary to burn out the old gas or thoroughly purge the system to avoid an explosion of the mixture of gas and air.
☑️ Algorithm of actions for repairs
After completing the work, it is necessary to check the tightness of the connections with a soap solution and monitor the operation of the unit for several hours. The temperature in the chambers must stabilize to the specified values.
Frequently asked questions (FAQ)
Is it possible to fill the Atlas refrigerator with car freon?
No, this is strictly prohibited. Automotive refrigerants (for example, R134a for cars) may contain additives that are not compatible with the compressor oil of a household refrigerator. In addition, the pressure and thermodynamic properties may differ, which will lead to breakdown.
How much does it cost to refill freon at a service center?
The cost depends on the region, type of gas and the difficulty of finding a leak. Usually the price consists of the cost of a technician’s visit, materials (freon, filter, solder) and labor. Refilling R600a may cost more due to the complexity of working with flammable gas.
Why does the refrigerator freeze after refueling, but does not turn off?
This may indicate several problems: either the refueling dose is incorrect (underfilling or overfilling), or there is air left in the system (poor evacuation), or the capillary pipeline is clogged. It is also possible that the leak has not been completely eliminated.
Is freon R600a dangerous for human health?
Isobutane itself is not toxic, but in high concentrations it displaces oxygen, which can cause suffocation. The main danger is its explosiveness at concentrations in air from 1.3% to 7.8%. During normal operation in a closed circuit, it is absolutely safe.