Two-chamber refrigerators of the brand Biryusa have earned a reputation as reliable and durable units that have served for decades in the kitchens of Russian families. However, despite the simplicity of the design, many owners encounter difficulties when initially setting up climate modes. An incorrectly set temperature can lead to spoilage of products or, conversely, to their freezing, which is especially important for fresh vegetables and fruits.
In this article we will analyze in detail the setting algorithms for various modifications, from classic models with a mechanical thermostat to modern versions with a digital display. Understanding the operating principles of cooling systems your device will allow you not only to maintain food freshness, but also to significantly reduce energy consumption.
Before making adjustments, it is important to determine the type of control installed on your refrigerator. The set of available options and the accuracy of the settings depend on this. We will look at the nuances of the operation of each type of regulator and provide the optimal values for various product groups.
Determining the type of control system
The first step to proper configuration is a visual inspection of the control panel. In refrigerators Biryusa most often there are two main options: a mechanical thermostat and an electronic control unit. The mechanical regulator is a rotary knob, usually located inside the refrigerator compartment or on the top of the case.
Electronic control is typical for more modern models and implies a display on the outer door. The current temperature is displayed on the screen, and modes are switched using touch buttons or keys. The difference in the accuracy of adjustment between these systems is significant: electronics allows you to set the value with an accuracy of a degree, while mechanics work on the “more or less” principle.
If you cannot find the regulator, carefully inspect the interior space. In some older models, the thermostat may be hidden behind a decorative trim or combined with a light bulb. Models with a system No Frost are characterized by the presence of a separate regulator for the freezer compartment, although in most two-chamber Biryus freezers operate in automatic mode, depending on the setting of the refrigerator compartment.
Setting a mechanical thermostat
Classic models of refrigerators Biryusa are equipped with a mechanical thermostat, which looks like a round knob with numbers from 1 to 5 or 1 to 7. The principle of operation here is simple: the higher the number, the more intense the compressor works and the lower the temperature inside the chamber. It is important to understand that the numbers on the scale do not indicate degrees Celsius.
To set the optimal mode, it is recommended to turn the knob to the position corresponding to the middle of the scale. For example, if you have a scale from 1 to 5, the ideal starting value would be 3. If the scale is up to 7, then you should choose 3 or 4. After changing the position of the knob, you must wait several hours for the system to stabilize.
⚠️ Attention: Abruptly switching the knob from minimum to maximum can lead to a jump in the load on the compressor. If you change the mode, do it smoothly, giving the equipment time to adapt.
Mechanical thermostats are sensitive to the ambient temperature. In summer, when the apartment is hot, you may need to increase the cooling (move the knob towards larger numbers). In winter, on the contrary, the power can be reduced. However, you should not constantly keep the regulator at maximum, as this leads to the formation of excessive ice and wear of parts.
Temperature control in models with electronics
Modern two-chamber refrigerators Biryusa with electronic control allow you to set precise temperature values. The control panel is usually located on the top of the door. To activate the setting mode, you must press and hold the button with the image of a thermometer or the button Temp for 3-5 seconds until the indicators start flashing.
Using the arrow buttons Up and Down (or + i -), select the desired temperature for the refrigerator compartment. The standard range is +2 to +8 degrees Celsius. After selecting a value for the refrigerator compartment, press the chamber switch button (usually indicated by a snowflake or letter F) to adjust the freezer if the model allows manual adjustment of the freezer.
The electronic system often has a child lock function on the buttons. If you hear a beep when you press the buttons, but nothing happens, the mode may be turned on Lock. To unlock, you need to hold the corresponding button (often with a picture of a lock) for several seconds until a characteristic sound appears or the indication changes.
☑️ Checking the electronics settings
Optimal temperature conditions for products
Correct setting temperature directly affects the shelf life of products. Conditions may vary slightly in different areas of the refrigerator, but the general conditions should ensure food safety. Below is a table of recommended values for various categories of products stored in refrigerators Biryusa.
| Product type | Recommended temperature | Shelf life (approximate) | Zone storage |
|---|---|---|---|
| Fresh meat, fish | 0...+2 °C | 1-2 days | Bottom shelf |
| Dairy products | +2...+4 °C | 3-5 days | Average shelves |
| Vegetables, fruits | +4...+6 °C | 3-7 days | Drawers below |
| Ready meals | +2...+5 °C | 1-2 days | Upper shelves |
| Eggs | +2...+4 °C | 7-10 days | Door or shelf |
It is worth considering that in two-chamber models with a drip defrosting system, the temperature at the rear wall may be below average. Therefore, it is not recommended to press foods, especially perishable ones, close to the back panel. Air circulation should be free for uniform distribution of cold.
For long-term storage of meat and fish, it is better to use a freezer. In two-chamber Biryusha the temperature in the freezer is usually -18 degrees or lower, which allows you to store food for months without loss of quality. Regularly checking the tightness of the seals will help keep these values stable.
Seasonal adjustment and external factors
The temperature in the room where the refrigerator is installed has a direct impact on the operation of the unit. If Biryusa is in the kitchen, where in the summer the air temperature rises above +25 degrees, the mechanical thermostat may not have enough power to maintain the internal mode. In such cases, it is permissible to shift the regulator one notch towards increased cold.
In winter the situation is the opposite. If the refrigerator is in an unheated room or next to a window where the temperature drops below +10 degrees, the compressor may not turn on at all. This is critical for models where the evaporator is located in the freezer compartment, and cold is supplied to the refrigerator compartment through a channel.
Why may the refrigerator not freeze in winter?
In a cold room, the thermostat sensor “thinks” that it is already cold inside and does not give the command to turn on the compressor. As a result, food in the refrigerator may begin to spoil, and food in the freezer may begin to thaw. The solution is to move the refrigerator to heat or use a special winter kit (thermostat heating element), if the model provides for this.
It is also important to consider the occupancy of the chambers. An empty refrigerator cools down faster, but also heats up faster when the door is opened. A full refrigerator holds the temperature better due to the heat capacity of the food, but requires a more powerful initial freezing. Try not to load warm products in large quantities, this makes compressor work to wear out.
Diagnostics of problems with temperature conditions
Sometimes even the correct setting does not give the expected result. If you set the average values, but the food in the refrigerator freezes or, on the contrary, spoils, the reason may not be in the regulator. A common problem with two-chamber Biryus is a refrigerant leak or a clogged capillary tube.
Pay attention to the operation of the compressor. If it works without interruptions (it buzzes constantly) and the temperature does not drop to the set temperature, this is a sure sign of a malfunction. It is also worth checking the cleanliness of the condenser (the grille at the back of the refrigerator). A dusty heat exchanger cannot efficiently transfer heat, which reduces the efficiency of the entire system.
⚠️ Attention: If you notice that the back wall of the refrigerator compartment is covered with an uneven layer of ice or, conversely, is completely dry when the compressor is running, this may indicate problems with defrosting or a freon leak. A call to the technician is required.
Another sign of a malfunction is swelling of the back wall inside the chamber or the appearance of oily spots under the refrigerator. In such cases, independent temperature adjustment is useless and can only aggravate the situation, leading to spoilage of products.
Frequently asked questions (FAQ)
Why in the refrigeration room Do vegetables freeze near the back wall in the Biryusa chamber?
This is typical for refrigerators with a drip defrosting system. The rear wall is a weeping evaporator, and ice forms on it during compressor operation. The temperature at the wall itself can drop below 0 degrees. Try not to place vegetables close to the back panel, leave a gap of 2-3 cm for air circulation.
Which position of the thermostat knob is the most economical?
The most economical position is the position at which the temperature inside the chamber is +4...+5 degrees. For a mechanical regulator, this is usually the middle of the scale (number 2.5-3 on a scale up to 5, or 3-4 on a scale up to 7). Setting the minimum temperature (maximum figure) increases energy consumption by up to 30%.
Is it possible to turn off the refrigerator compartment in a two-chamber Biryusa, leaving only the freezer?
In most classic models Biryusa with one compressor and mechanical control, it is impossible to turn off the refrigerator compartment separately. Stopping the compressor will stop cooling both compartments. There are models with two compressors or a “Dry Frost” system, where this is possible, but they are less common and have a separate shutdown button.
How long after turning on or changing the settings does the temperature stabilize?
Full return to the mode after defrosting, transportation or a radical change of settings takes from 4 until 8 o'clock. During this time, it is not recommended to load food in large quantities. An electronic sensor can show the change faster, but the inertia of cooling the entire volume of food takes time.