Brand refrigerators Biryusa have earned a reputation for reliable equipment since the times of the Soviet Union, and modern models continue to be in demand due to their affordable price and maintainability. The heart of any refrigeration unit is the compressor, the health of which determines the temperature regime and the safety of food. Possession of information about the type of installed motor is critical when planning a budget for repairs or purchasing spare parts for independent restoration.
At different periods of production, the Krasnoyarsk Refrigerator Plant used different components, which makes the issue of identifying the engine not as simple as it might seem at first glance. On older models you can often find Soviet units, while modern lines are equipped with more economical and quiet engines of foreign and Belarusian production. Understanding these differences will help you avoid mistakes when ordering parts.
In this article we will analyze in detail which ones were installed in different series of refrigerators compressors installed in various series of refrigerators Biryusa, how to identify a malfunction and what to look for when replacing. We will consider technical characteristics, compatibility and installation nuances so that you can make an informed decision.
Evolution of compressors in Biryusa refrigerators
History of refrigerator production Biryusa dates back several decades, and during this time the technological base of the enterprise has changed significantly. The first models, released in the 60-70s, used exclusively domestic compressors, which were highly reliable, but had a significant noise level and high energy consumption. These units were often called “indestructible,” although their repair required highly qualified craftsmen.
With the transition to new production lines in the post-Soviet period, the plant began to introduce more modern solutions. Models with two compressors appeared, which made it possible to implement the system No Frost and independent temperature control in the chambers. This was an important step in increasing energy efficiency and ease of use.
In modern lines, the manufacturer gives preference to proven brands that provide a balance between cost and quality. Often in the same housing there can be different engine modifications depending on the year of manufacture and the specific batch. Therefore, when searching for an analogue, you should always rely on the markings of a specific device, and not just on the model of the refrigerator.
⚠️ Attention: Never rely only on the appearance of the old compressor when buying a new one. Models may look identical, but have different power, type of refrigerant or connection diagram, which will lead to rapid breakdown of the equipment.
Main manufacturers and markings
With a detailed analysis of the internal structure of refrigerators Biryusa one can identify several main suppliers of compressors. The leading position is occupied by the Belarusian plant Atlant, whose engines are known for their adaptation to operating conditions in the CIS countries. There are also units from the Danish company Danfoss (now Secop) and Chinese manufacturers, such as Jiazip or QD.
You can identify the manufacturer by the characteristic sticker or stamp on the metal case. Belarusian models usually have markings starting with letters SK or CO, followed by numbers indicating the cooling capacity. European analogues are often marked with alphanumeric codes, where the type of refrigerant and cylinder volume are encrypted.
It is important to distinguish between types of compressors according to the principle of operation. Most household models Biryusa use sealed piston units. They are reliable and easy to maintain. However, in new premium models there may be inverter systems that operate on a different principle and require a specific approach to diagnostics.
Technical characteristics of popular models
To select the correct spare part, you need to know not only the brand, but and specific technical parameters. The compressor power must correspond to the volume of the refrigeration and freezer compartments. Using a motor that is too weak will result in the refrigerator not reaching temperature, while a motor that is too powerful can cause frequent on-off cycles, which is harmful to the system.
Particular attention should be paid to the type of refrigerant used. Old models ran on freon R12, which is now prohibited for use due to harm to the environment. Modern compressors are designed for the R134a or R600a. Oilused in the system is also different: mineral for old freons and synthetic (polyester) for new ones. Mixing oils is strictly prohibited.
Below is a table that helps compare compressor models with their main characteristics found in refrigerators Biryusa:
| Compressor model | Manufacturer | Refrigerant type | Power (W) | Application |
|---|---|---|---|---|
| SKN-105 | Atlant | R134a | 150 | Medium refrigerators |
| CO1012 | Secop (Danfoss) | R134a | 120 | Small-sized models |
| QD35 | Jiazip | R600a | 95 | Economic series |
| NKS-111 | Atlant | R12 | 180 | Old models (USSR) |
When selecting an analogue, small deviations in power are allowed, usually within 10-15%. However, it is critical to match the refrigerant type and starting torque. If you are unsure of your calculations, it is better to consult a technician.
Is it possible to install a more powerful compressor?
Theoretically, installing a more powerful compressor will speed up freezing, but this will overload the electrical network and the condenser. In addition, the standard condenser may not be able to cope with the volume of gas, which will cause an increase in pressure and the risk of depressurization of the system.
Diagnostics of compressor malfunctions
Before you start replacing an expensive unit, you need to make sure that the problem lies there. Often, symptoms similar to a motor breakdown can be caused by a malfunctioning thermostat, start relay, or freon leak. Primary diagnostics begins with a visual inspection and listening to the operation of the device.
If the refrigerator hums but does not cool, or the motor turns on for a few seconds and clicks when turning off, this may indicate a jammed piston group or a breakdown of the winding. In such cases, the engine often becomes very hot. You can check the integrity of the windings using a multimeter by measuring the resistance between the contacts.
It is also worth paying attention to the condition of the starting relay. This is a small device that fits onto the compressor contacts. If it fails, the motor will not receive the necessary impulse to start. Replacing the relay is a simple and cheap procedure that often solves the problem of a “humming” refrigerator.
⚠️ Attention: Before any manipulations with the electrical part of the refrigerator, be sure to disconnect it from the network. Residual voltage in the capacitors can lead to electric shock even after unplugging the appliance.
Instructions for self-replacement
Replacing a compressor in a refrigerator Biryusa is a complex technical process that requires special equipment, such as a burner, a vacuum pump and a pressure gauge station. Without these tools, it is impossible to do the job efficiently, since the system must be absolutely sealed and dry.
The process begins with dismantling the old unit. It is necessary to carefully cut off the copper tubes leading to the compressor so as not to damage the condenser. Then the capillary tube and discharge pipe are unsoldered or bitten off. The old motor is removed from the casing, and a new, pre-prepared one is installed in its place.
After installing the new compressor, the connections are soldered. It is important here not to overheat the tubes so that burns do not form. The next step is to vacuum the system to remove moisture and air. Only after creating a vacuum is the refrigerator filled with freon strictly according to the weight indicated on the factory tag.
☑️ Checklist before replacing the compressor
Remember that improper refrigerant charging or the presence of moisture in the system can lead to the formation of an ice plug in the capillary or destruction of the compressor due to water hammer. If you do not have experience working with refrigeration equipment, it is strongly recommended to contact a service center.
Where to buy and how to choose an analogue
Finding an original compressor for older models Biryusa can be a problem, since many of them are out of production. In such cases, you have to look for analogues. The market offers many options, but it is important to choose products from proven brands, such as Atlant, Secop or Embraco.
When purchasing, pay attention to the presence of a warranty card and quality certificates. Cheap Chinese compressors of unknown brands often turn out to be reconditioned units whose service life is unpredictable. Savings in this case can lead to repeated repairs in a few months.
It is better to buy components in specialized refrigeration equipment stores or from official dealers. There they will be able to select an exact analogue for you by catalog number and give professional advice on installation.
Is it possible to use a compressor from another refrigerator?
Using a compressor from another model is possible if the overall dimensions, mounting holes, power and type of refrigerant are the same. However, such experiments are risky: mismatch of characteristics can lead to incorrect operation of the system or increased energy consumption.
Why does the new compressor get very hot?
Strong heating can be caused by several reasons: an excess or lack of freon, a blockage in the system, a malfunction of the condenser or too long operation without breaks. It is also worth checking whether the starting relay is selected correctly.
How long does the compressor last in the Biryusa refrigerator?
The average service life of a high-quality compressor is 10-15 years. With careful operation and favorable conditions (stable voltage, clean capacitor), it can last up to 20 years. Chinese analogues often have a shorter service life - about 5-7 years.
Is it necessary to change the filter-drier when replacing the compressor?
Yes, replacing the filter-drier is mandatory for any opening of the system. The old filter is already saturated with moisture and will not be able to effectively clean the refrigerant, which will quickly lead to failure of the new compressor.