The two-compressor cooling system in the brand's household appliances Atlant is deservedly considered one of the most reliable and economical on the modern market. The presence of two independent circuits allows the freezer and refrigerator compartments to operate autonomously, which gives the owner a unique opportunity to flexibly control the microclimate in each compartment. Correct temperature setting is not just a matter of comfort, but also a guarantee of a long shelf life of products without loss of their taste.
Many users mistakenly believe that it is enough to turn the knobs once and forget about them. However, the correct operation of the unit is influenced by many factors: from the degree of loading of the shelves to the temperature in the room. Understanding the operating principles of thermostats will help you avoid common mistakes, such as freezing of vegetables or insufficient freezing of meat.
In this article we will analyze in detail the algorithm of actions for setting optimal parameters, consider the differences between mechanical and electronic controls, and also answer questions that often arise during initial operation or after defrosting the equipment.
The principle of operation of two independent circuits
The key feature that must be taken into account when setting up is the complete isolation of the cooling cycles. While in single-compressor models the cold is distributed across all chambers from one source, here each compartment is responsible for its own compressor. This means that you can set the maximum cold in the freezer for quick freezing, leaving the refrigerator compartment at “+5°C” for storing fruit.
This design minimizes temperature differences when opening one of the doors. If you often open the refrigerator compartment, the freezer practically does not react to the loss of cold, since its compressor is turned on only by a signal from its thermostat. This also reduces the load on coolant and extends the life of the engine.
⚠️ Attention: When turning on for the first time or after a long defrosting, do not load food immediately. Allow the system to enter operating mode in an empty state for 2-3 hours so that the sensors correctly read the temperature of the chamber walls.
The independence of the circuits allows you to save energy. If you go on vacation, some models Atlant allow you to turn off the refrigerator compartment, leaving only the freezer working, or vice versa. However, the standard setting involves the simultaneous operation of both circuits to maintain balance.
Adjusting mechanical thermostats
In most models Atlant with mechanical control, the temperature regime is set by rotary knobs located inside the chambers or on the top panel. Typically the adjustment scale is numbered from 1 to 7 (or from Min to Max). It is important to understand: the number on the regulator is not degrees Celsius, but the degree of intensity of the compressor.
The higher the value you set on the scale, the lower the temperature inside the chamber will be. That is, position “7” or “Max” means maximum cooling, and “1” means minimum. Many users make the mistake of thinking that the number indicates degrees, and set the values too low, which leads to icing of the food.
For the refrigerator compartment, the optimal position of the regulator is in the range from 3 to 4. This ensures that the temperature is maintained within the limits +3...+5°C. For the freezer, if it has its own regulator, an average value is also recommended if the fast freezing mode is not required.
If the room is very hot (above +30°C), it makes sense to slightly increase the value on the thermostat to compensate for the heat gain. However, it is not recommended to constantly keep the regulator at maximum, as this leads to continuous operation of the compressor and its overheating.
Setting up electronic control and display
More modern models Atlant equipped with electronic control unit with digital display. Here, the settings are made with an accuracy of a degree, which greatly simplifies control over the safety of products. The control panel is usually located on the outside of the door or inside the refrigerator compartment.
To change parameters, you must press the mode selection button (often indicated as “Temperature” or a thermometer icon) and use the “+” and “-” buttons to set the desired value. In some models, you need to hold the setting button for 3-5 seconds to unlock the control panel from accidental presses.
The electronic system allows you to activate special functions such as “Super Freeze” or “Super Cooling”. When these modes are activated temperature in the corresponding camera, it is forcibly reduced to the minimum possible values for a certain time. After the function is automatically turned off, the system will return to the previously set parameters.
What does the flashing indicator on the display mean?
If the temperature indicator is flashing, this is an alarm. It means that the temperature in the chamber is higher than the established norm. This can happen immediately after switching on, when the door is opened for a long time, or if the sensor is faulty. If the blinking does not stop after closing the door and operating normally for several hours, contact service.
The advantage of electronic control is the ability to accurately calibrate. You can set level +4°C for storing meat or +6°C for vegetables, without relying on the approximate divisions of the mechanical scale. This is especially important for products that require storage conditions.
Optimal temperature conditions for different products
The correct distribution of products on shelves directly depends on the set temperature. In two-compressor refrigerators Atlant the temperature field is distributed unevenly, and knowledge of these nuances will help keep food fresh longer. The lower shelves are usually colder than the upper ones.
Different conditions are required for storing different groups of products. Meat and fish require the lowest temperature threshold in the refrigerator, while fruits and vegetables can spoil if refrigerated too much. Below is a table of recommended parameters.
| Product type | Recommended temperature | Shelf life (approximate) | Placement area |
|---|---|---|---|
| Fresh meat, fish | 0...+2°C |
1-2 days | Lower shelf / Zero zone |
| Dairy products | +2...+4°C |
3-5 days | Middle shelves |
| Vegetables, fruits | +4...+7°C |
3-7 days | Drawers below |
| Ready meals | +3...+5°C |
1-2 days | Middle/Top shelves |
| Frozen foods | -18°C and below |
Up to 12 months | Freezer |
Please note that storing food at temperatures above the recommended speeds up the growth of bacteria, and too low a temperature can destroy the tissue structure (for example, in strawberries or cottage cheese). Adjust thermostat depending on what products you loaded.
⚠️ Attention: Do not store warm foods in the refrigerator. This causes a sharp jump in temperature and causes the compressor to wear out, which can throw off the current microclimate settings.
Seasonal adjustment and external factors
Room temperature has a direct impact on the operation of the refrigerator Atlant. In the summer, when the apartment is hot, heat exchange occurs more slowly, and the compressor requires more time and effort to remove heat from the chambers. In winter, if the refrigerator is located against a cold wall or in an unheated kitchen, the situation changes.
In the summer, it is recommended to check the settings more often. If you notice that food begins to deteriorate faster or condensation appears on the walls, it may be worth increasing the cooling intensity (move the regulator towards higher numbers). However, make sure that the back wall is not overgrown with a thick “coat” of ice.
In winter, on the contrary, if the room is cool, the mechanical thermostat may “underestimate” the need to turn on the compressor. In such cases, food in the refrigerator compartment may thaw. The solution will be to slightly reduce the value on the regulator (shift towards smaller numbers), which will force the unit to turn on more often.
☑️ Checking the operating conditions
It is also worth considering the frequency of door opening. In a large family, the refrigerator opens constantly, which leads to loss of cold. In such cases, it makes sense to keep the settings a little more intense than in a house where one or two people live.
Quick freezing mode and its effect
The fast freezing function (often referred to as “Super Freeze” or a snowflake with an asterisk) is a powerful tool in the arsenal of a two-compressor refrigerator. When activated, the freezer compressor runs continuously, ignoring thermostat stop signals.
This mode should only be used when loading a large amount of fresh, non-frozen food. Rapid passage through crystallization allows you to preserve the cell structure of meat or berries, preventing loss of juice during defrosting. Standard freezing of large volumes of warm food can lead to spoilage of the supplies already in the chamber.
In models with mechanical control, the fast freezing mode is often activated by turning the regulator to the extreme position or by a separate button with a timer. In electronic models, the timer usually turns off the function automatically after 24-72 hours. It is important not to forget to return the settings to normal mode, otherwise evaporator ice will form and the food may dry out.
⚠️ Attention: Long-term operation in fast freezing mode (more than 3 days) unnecessarily can lead to freezing of the capillary tube and system outlet out of order. Use the function only for its intended purpose.
After the food is completely frozen (usually after a day), be sure to turn off the intensive operation mode. This will allow the system to return to the economical temperature maintenance cycle -18°C.
Diagnosing problems with temperature conditions
If you set the temperature according to the instructions, but the result does not meet expectations, it may not be the settings. There are a number of signs that indicate a malfunction. For example, if the compressor runs without stopping and the temperature does not drop below +10°Cthere is probably a freon leak.
Another common case is the formation of an ice crust only on the back wall of the refrigerator compartment when the compressor is running. This may indicate problems with the defrost system or a malfunction thermostatthat does not give a signal to stop the engine.
Check the tightness of the sealing rubber bands. If the door does not close tightly, warm air constantly enters the chamber and the refrigerator cannot reach the set mode. A simple test with a sheet of paper clamped by the door will help identify leaks around the perimeter.
If you have doubts about the correctness of the display readings or the behavior of the mechanical regulator, try performing a full cycle defrosting (at least 24 hours with doors open). Sometimes this allows you to reset an electronic error or defrost hidden cavities of the evaporator.
Why is the temperature in the refrigerator compartment higher than on the display?
This may be due to incorrect location of the temperature sensor, a dense load that blocks air circulation, or the recent inclusion of the fast freeze mode in the freezer, which temporarily changed the balance of the system. It is also possible that the sensor requires calibration.
Is it possible to constantly set the temperature in the freezer to -24°C?
Technically, a two-compressor Atlant can reach such values, but it is not recommended to constantly maintain such a temperature. This will lead to a significant waste of electricity and accelerated wear of the compressor without significant benefit for most products for which -18°C is enough.
How to understand that the thermostat is faulty?
Main symptoms: the refrigerator does not turn on at all (if you close the contacts and it starts working, the problem is regulator), or works non-stop, causing severe hypothermia even at minimum settings. In mechanical models, crackling or clicking noises are often heard without the subsequent starting of the motor.
Does the amount of food in the chamber affect the temperature setting?
Yes, an empty refrigerator cools down faster, but it holds the cold worse when the door is opened. A full chamber (approximately 70% full) works more stable. If you load the refrigerator completely, on the first day it is better to set a lower temperature, and then return the regulator to the standard position.