The question of which engine, or more technically correct - compressor, is installed in your refrigerator, often arises at the most inopportune moment, for example, when the appliance stops freezing or emits uncharacteristic noise. The brand Atlant, being one of the leaders in the CIS market, has used a wide range of compressor equipment over many years of production, and there is no single answer for all models. Understanding the type of installed unit is critical for the correct selection of spare parts during repairs, since the parameters of different series can differ significantly in power, refrigerant and type of starting mechanism.
Initially, predominantly domestic compressors were installed at the plant in Minsk, but over time the line has expanded to include European and Chinese analogues, which has created a situation where visually identical refrigerators can have completely different “fillings”. In this article, we will look in detail at how to determine the brand of motor without opening the technical documentation, which series are considered the most reliable, and also consider the nuances of replacing and servicing various types of engines.
⚠️ Attention: Information on compressor compatibility may vary depending on the year of manufacture of a particular model. Always check the markings on the nameplate of your device with the manufacturer’s current catalogs before purchasing spare parts.
Main manufacturers of compressors for Atlant
During the long history of the existence of the refrigeration equipment manufacturing plant in Minsk, several large companies acted as suppliers of compressor units. Most often in household refrigerators Atlant you can find products of three main brands, each of which has its own design features and reliability characteristics.
The first and most widespread option are compressors Biryusa (DM series), which were produced in Krasnoyarsk. These engines have long been the standard for budget and mid-range models. They are known for their maintainability, although they are inferior to modern analogues in energy efficiency and noise level. The second key player is the Danish company Danfoss (later renamed to Secop), whose compressors were installed on more expensive two-compressor models and refrigerators with the No Frost system.
The third type is Chinese compressors, which have become actively be implemented in the last 10-15 years to reduce production costs. Among them there are brands Jiaxipera, Embraco (Chinese assembly) and others. They often have smaller dimensions and are quieter, but their service life may be lower than that of old Soviet or Danish counterparts. The choice of a specific engine depended on the series of the refrigerator and the year of its manufacture.
- 🏭 Biryusa (Russia): Classic piston compressors, easy to maintain, but noisy.
- 🇩🇰 Danfoss/Secop (Denmark/Europe): High reliability, low noise level, often found in two-compressor systems.
- 🇨🇳 Chinese brands: Compact, quiet, budget, but requiring careful selection of analogues when replacing.
How to determine the compressor model without opening
The most reliable way to find out which engine is in your refrigerator Atlant is an inspection of the technical sticker, which is usually located inside the refrigerator or freezer compartment. However, if the sticker has worn off or is inaccessible, you can use a visual inspection of the unit itself through the rear grille without removing it completely.
Pay attention to the shape and color of the compressor casing. Old models Biryusa (DM-10, DM-15 series) often have a black, slightly rough cylindrical casing of large diameter. Modern Chinese and European units are often painted glossy black and may have a flatter or square base shape. The presence of an external starting protection relay also plays an important role: in older models it is often placed separately or has a characteristic rectangular shape, while in modern ones it is built inside or has a compact appearance.
If it is possible to safely look behind the rear panel, look for markings directly on the metal body of the engine. There are alphanumeric codes stamped there that will tell everything about the origin of the node. For example, markings starting with DMindicate Russian production, and codes NL, BD or SC often indicate European origin or license.
Characteristics and series of Biryusa (DM) compressors
Series compressors DM, produced by the Biryusa plant, are an absolute classic for refrigerators Atlant Soviet and early post-Soviet period. These units are of the piston type with a crank-cam mechanism. Their main feature is high maintainability and the ability to operate in a wide temperature range, although with increased power consumption.
The most common models are DM-10 i DM-15. The number in the name indicates the cooling capacity. These engines are charged with freon R12 (in older models) or R134a (in newer versions). An important feature is the use of a start-up relay, which often fails before the compressor itself, creating a false impression of engine failure. When there is a hum, but no start, the relay is the first to be changed.
The service life of such engines with careful operation can reach 10-15 years or more. However, they are sensitive to voltage drops in the network, so the use of a stabilizer or at least a high-quality surge protector for equipment with such a “heart” is a justified preventive measure. Their operating noise is higher than that of modern analogues, which should be taken into account when installing a refrigerator in the kitchen-living room.
| Parameter | DM-10 Series | DM-15 Series | Series DM-20 |
|---|---|---|---|
| Cooling capacity | Low (up to 100 l) | Medium (up to 200 l) | High (more than 200 l) |
| Refrigerant type | R12 / R134a | R134a | R134a |
| Noise level | High | Average | Average |
| Energy consumption | High | Medium | Medium |
Is it possible to replace the DM-10 with the DM-15?
Technically this is possible, since the seats are often the same, but the DM-15 is more powerful. This will cause the temperature to rise faster and turn on more frequently, which can shorten the life of the thermostat. It is better to look for an exact analogue.
European and modern analogues: Secop and Danfoss
In two-compressor models Atlant, especially in series with a system No Frost or a larger volume, Danish compressors were often installed company Danfoss. Later, the production line was sold to the company Secop, so in new refrigerators you can find the Secop marking, although structurally these are the same time-tested units.
These engines are distinguished by their compact size, very quiet operation and high energy efficiency. They often have built-in thermal protection, making them safer to use. However, they have their own “Achilles heel” - sensitivity to the quality of tube soldering when replacing. If moisture or air gets into the system during repairs, such a compressor will fail much faster than the unpretentious Biryusa.
When replacing a failed one Danfoss on analogue, it is important to pay attention to the power in horsepower (HP) or watts (W), as well as the type of refrigerant. Often, instead of the original, craftsmen suggest installing universal Chinese compressors that match the mountings. This is acceptable, but you need to be prepared for the fact that the noise level may change, and the performance may differ slightly from the factory one.
⚠️ Attention: Secop/Danfoss compressors often require the use of a strictly defined type of filter drier when replacing. Using an unsuitable filter can lead to clogging of the capillary tube after several months of operation.
Symptoms of malfunction and the need to replace the engine
You can understand that the engine of your refrigerator Atlant requires intervention by a number of indirect signs. The most obvious is the complete absence of cold when the lights are working and the thermostat is working. However, often the problem lies not in the motor itself, but in the accompanying elements, so the diagnosis must be comprehensive.
Pay attention to the nature of the unit’s operation. If the compressor turns on, makes several frantic attempts to start (clicking and humming is heard), and then turns off, and so on in a circle, this is a classic symptom of a “wedge” or a faulty start relay. If the motor runs continuously without turning off, and at the same time the freezer barely cools, and there is no uniform heating on the rear condenser grill, this may indicate a loss of power by the compression or a freon leak.
Also an alarming signal is the appearance of a burning smell or melting of the wiring in the compressor area. In this case, operate the refrigerator strictly prohibited to avoid fire. A loud metallic knock or clanging inside the casing indicates mechanical destruction of the internal components of the piston group, which requires immediate replacement of the unit.
☑️ Diagnostics before calling a technician
Nuances of replacement: can you do it yourself
Replacing a compressor in a refrigerator Atlant is a complex technical process that requires not only mechanical skills, but also specialized equipment. Unlike replacing a light bulb or even a thermostat, you can't get away with just a set of screwdrivers and wrenches. To carry out the work, you will need a station for filling with refrigerant, a vacuum pump, a torch for soldering copper tubes and a set of tools for rolling.
The replacement process includes bleeding the old freon (which must be done carefully, observing environmental standards), dismantling the old compressor, soldering the new unit, installing a new one filter-drier, evacuation of the system to remove moisture and air, and only then - charging with a strictly defined amount of refrigerant. An error in the amount of gas or the presence of moisture in the system is guaranteed to lead to breakdown of the new compressor in the shortest possible time.
Independent replacement is possible only if you are qualified as a refrigeration technician. For an ordinary user, attempting to replace an engine with your own hands without experience is fraught not only with damage to an expensive component, but also with the risk of injury or irreversibly damaging the cooling system. Therefore, if you are not confident in your abilities, it is better to entrust this work to professionals who will provide a guarantee for their work and the spare parts used.
Frequently asked questions (FAQ)
Is it possible to install a Chinese analogue in an Atlant refrigerator with a Biryusa compressor?
Yes, this is a common practice. The main thing is to choose an analogue with the same or similar power (cooling capacity) and a suitable type of refrigerant. It is also important that the mounting locations match, or that it is possible to adapt them. Often it is necessary to replace the starting relay with a complete one with a new compressor.
Which compressor is quieter: the old DM or the modern one?
Modern compressors (Chinese brands or Secop) operate much quieter than the old Soviet and Russian DM series. If acoustic comfort is important to you, when replacing it is better to choose modern low-noise models, making sure that they are compatible with your system.
Why did the refrigerator start to freeze worse after replacing the compressor?
This may indicate several problems: the power of the new compressor was incorrectly selected (too weak), poor-quality soldering occurred (narrowing of the tubes), there was some leftover in the system. moisture or air, or the filter drier is not selected correctly. Freon leakage at the soldering points is also possible.
How long does the compressor in the Atlant refrigerator last on average?
The average service life of the compressor is from 10 to 15 years. However, under favorable conditions (stable voltage, clean capacitor, correct installation), they can work for 20 years or more. Chinese analogues sometimes have a shorter lifespan, about 7-10 years.