Correct setting of the temperature regime in refrigeration equipment is the foundation for long-term storage of products and preservation of their taste. Owners of domestically produced equipment are often faced with the need for precise calibration, especially in models with mechanical control. Errors in the settings can lead to damage to supplies or increased energy consumption.
Modern and classic models Biryusa are reliable, but require careful attention to thermostat adjustments. Understanding the operating principles of the compressor and heat removal system will help you avoid common mistakes. Below we will analyze all the nuances of setting the optimal microclimate inside the chambers.
Principles of operation of the Biryusa thermostat
The main element responsible for maintaining cold is thermostat. Depending on the model, it can be mechanical (with a rotary knob) or electronic (with a digital display). Mechanical devices respond to changes in temperature inside the evaporator or chamber by opening and closing an electrical circuit.
When you turn the knob, you change the tension of the bellows or bimetallic strip inside the sensor. The numbers on the scale do not mean degrees Celsius. They indicate the intensity of the compressor: the higher the number, the lower the temperature inside the chamber.
⚠️ Attention: Setting the maximum value (usually 7 or “Max”) on a mechanical thermostat forces the compressor to work almost non-stop. This can lead to freezing of the evaporator and shortening the service life of the engine.
Electronic control systems found in the new series allow you to set precise values in degrees. Here the controller reads readings from the sensors and sends a signal to start or stop the motor. Such a system provides a more stable mode, minimizing differences.
Optimal temperature conditions for different compartments
For safe storage of products, certain temperature ranges must be observed. In the main chamber, where prepared dishes, dairy products and vegetables are stored, the air should be cooled to values from +2 to +5 degrees. This is a standard that prevents the growth of bacteria.
The freezer requires more extreme conditions. For long-term storage of meat, fish and semi-finished products, a temperature of no higher -18 degreesis required. Under such conditions, products retain their structure and beneficial properties for up to 12 months.
- 🥩 For meat and poultry, the ideal mode is from -18°C to -24°C.
- 🥦 It is better to store vegetables and fruits at +3...+5°C in the freshness zone.
- 🥛 Dairy products require stable +2...+4°C.
- 🍺 Drinks and ready meals can be stored at +4...+6°C.
It is important to consider the occupancy of the chambers. A full refrigerator holds the cold better, since the food itself acts as a cold accumulator. It is more difficult for the compressor to cool an empty chamber due to the larger volume of air that circulates when the door is opened.
Instructions: how to set the temperature on the mechanics
If your refrigerator Turk is equipped with a rotary handle inside the chamber, the setting process is as follows. First, find the thermostat, which is usually located on the top inner wall or side panel.
Turning the knob clockwise increases the number on the scale, which corresponds to increased cooling capacity. If you have just loaded a lot of warm food, you can temporarily increase the power, but then be sure to return the regulator to the operating position.
☑️ Checking the thermostat settings
It is recommended to set the knob to the middle position (usually numbers 3 or 4). This is the “golden mean” in which the refrigerator operates normally, managing to thaw during pauses and preventing food from defrosting.
What do the numbers on the handle mean?
The numbers from 1 to 7 on the thermostat are conventional units of power. 1 - minimum cooling (the compressor rarely works), 7 - maximum power (the compressor almost never turns off). Zero or Off - complete power cut.
Setting up electronic control panels
In models with electronics, such as series Biryusa 133 or 149, control is carried out through a panel on the door or inside the chamber. Here you can see the actual sensor readings. To change the mode, you usually use the “Mode”, “Temp” or up/down arrow buttons.
Press the zone selection button (refrigerator or freezer), then change the value. The system itself will determine how long the compressor must operate to achieve the specified parameters. Some models have ready-made programs available, for example, “Vacation” or “Super Freeze.”
| Mode | HK temperature | MK temperature | Description |
|---|---|---|---|
| Eco | +5°C | -18°C | Economic mode for everyday use |
| Standard | +3°C | -20°C | Optimal for mixed loads of products |
| Super freezing | +2°C | -24°C | For quick freezing of fresh food (automatic shutdown after 24-48 hours) |
| Vacation | +10...+15°C | -18°C | Energy saving, the freezer is working, the main chamber does not freeze |
When the “Super Freeze” function is activated (often indicated by a snowflake or the letter F), the refrigerator operates at its maximum capacity. Do not leave this mode on constantly, otherwise the compressor may wear out and ice crust may form.
Factors affecting temperature inside the chambers
Even with the thermostat set correctly, the actual temperature may fluctuate. One of the main factors is ambient temperature. If the refrigerator is located near a radiator or in the sun, it is more difficult for it to remove heat, and the internal temperature may rise.
The frequency of opening the doors also plays a role. Every time you open the chamber, cold, heavy air flows out and warm, moist air from the kitchen enters. The compressor takes time to cool the new portion of air.
⚠️ Attention: Never place hot pots or pans inside the refrigerator. A sharp jump in temperature will force the thermostat to turn on the motor for a long cycle, which will lead to ice freezing on the evaporator and an increase in temperature in neighboring areas.
The density of the shelves affects the circulation of air flow, especially in models with the system No Frost. If you pack the shelves full and block the vents, the cold will not be distributed evenly. As a result, food will freeze in some corners and spoil in others.
Diagnostics and elimination (FAQ)
Sometimes users encounter situations where the settings seem to be correct, but the result does not meet expectations. For example, the refrigerator compartment is too cold, and the ice in the freezer is melting. This may indicate a freon leak or a malfunction of the thermostat.
If you notice that a “coat” of ice is forming on the back wall of the main chamber, and the compressor is humming without interruption, check whether the regulator is set to maximum. It is also worth checking the tightness of the seal sealing rubber around the perimeter of the door.
In cases where the refrigerator is new, it takes up to 24 hours for it to reach operating mode after the first turn on. Do not load it with food immediately, let the equipment get cold.
Below are the answers to the most common questions that arise from equipment owners Biryusa.
Why does ice freeze in the Biryusa refrigerator even though the thermostat is at minimum?
This may occur due to a loose door, worn seal, or a malfunction of the defrost sensor (in No Frost models). Also check if the drainage holes are clogged.
What position of the thermostat knob is considered normal in summer?
In summer, when the room is hot, it is recommended to set the knob to values 2-3 (out of 7). This will allow the compressor to take more frequent breaks, preventing overheating while maintaining sufficient cold.
What to do if the freezer temperature is -10°C instead of -18°C?
Try increasing the thermostat setting by one notch. If the temperature does not drop after 4-5 hours, the system may be low on refrigerant or the thermostat may be faulty. A call from a specialist is required.
Is it possible to leave the Biryusa refrigerator in an unheated dacha in winter?
You can store the equipment at sub-zero temperatures, but it is strictly forbidden to turn it on until it has completely warmed up to room temperature (at least 4-5 hours). The oil in the compressor thickens and can damage the mechanism when starting.
Why is the top shelf colder than the bottom?
In classic refrigerators without a fan, cold air falls down, so the bottom is usually colder. If it’s the other way around, the circulation channels may be blocked or the fan is faulty (in No Frost systems).