Owners of household appliances often face a dilemma: which number to choose on the thermostat wheel so that food remains fresh for as long as possible, and the unit worked without overload. Brand refrigerators Atlant, which are extremely popular due to their reliability and affordability, have a specific setting scale that can confuse an inexperienced user. Incorrect setting of the temperature regime will not only lead to spoilage of food, but can also significantly reduce the life of the compressor.
Understanding the operating principle of a mechanical thermostat is the key to proper operation. Unlike electronic panels, where you set precise degrees Celsius, a mechanical regulator controls the compressor power and operating time through conventional units. Golden mean exists, but it depends on many factors: time of year, chamber load and frequency of door opening. Let's figure out how to find the ideal balance for your device.
In this article we will take a closer look at what the numbers on the scale mean, how they affect the microclimate inside the chambers, and why you can’t just set the maximum value “just in case.” Correct calibration will help you avoid the formation of a snow coat in the refrigerator compartment or, conversely, defrosting food in the freezer.
The principle of operation of a mechanical thermostat
A mechanical thermostat, installed in most models Atlant, is a device that responds to changes in the temperature of the refrigerant in the evaporator. Inside the housing there is a bellows filled with gas or liquid, which, when expanded or compressed, opens or closes electrical contacts. The numbers on the handle do not indicate degrees, but indicate the tension force of the spring that controls this mechanism.
The higher the number that you set by turning the handle, the more the spring is compressed. This causes the thermostat to break the compressor power circuit at lower temperatures. In simple words: a larger number means lower temperature inside the camera and longer operation of the motor. On the contrary, the minimum values allow the unit to rest more often, maintaining a less cold mode.
⚠️ Attention: Never try to turn the regulator if it is jammed or makes strange sounds. Mechanical thermostats are sensitive to sudden movements, and excessive force can cause damage to the shaft or internal contacts.
It is important to understand that the thermostat is usually installed in the refrigerator compartment, but controls the operation of the compressor, which cools both chambers (in two-compressor models, only its own). Therefore, the changes you make through the governor affect the overall system performance. If the room is hot, the thermostat has to work harder to achieve the set parameters, which explains the dependence of the settings on seasonality.
Deciphering the thermostat scale: what the numbers mean
The standard refrigerator thermostat scale Atlant usually contains numbers from 1 to 7 (sometimes from 0 to 7 or 1 to 8, depending on the series). Users often make the mistake of thinking that the number 7 means the “warmest” state, similar to degrees Celsius. In reality, the logic is reverse: one is the minimum cooling (maximum warmth), and seven is the maximum power (maximum cold).
Let's take a closer look at how the range of settings works:
- 🌡️ Number 0 or Min: The compressor is completely turned off, the refrigerator does not work. Used for defrosting or long periods of inactivity.
- ❄️ Numbers 1-2: Low cooling mode. The temperature in the refrigerator compartment can reach +8...+10°C. Suitable for storing vegetables in winter or with a very full load, when the products themselves maintain cold.
- ✅ Digits 3-4: Optimal operating range. Provides a temperature of about +3...+5°C, which is ideal for most products. The compressor operates in normal mode with normal on/off cycles.
- 🥶 Numbers 5-7: Intensive cooling mode. Temperatures can drop to 0°C or below. It is used for quick freezing or on hot summer days, but requires control to avoid freezing.
Constant operation at maximum values (6-7) leads to the fact that the compressor practically does not turn off. This causes engine overheating, increased power consumption and accelerated wear of components. In addition, water in open containers in the refrigerator compartment may begin to freeze, and a thick layer of ice may form on the back wall.
Optimal settings depending on the season
The ambient temperature directly affects heat transfer. In summer, when the apartment is hot, heat flow into the fridge compartment increases. The thermostat takes longer to cool the chamber to its set point, so cycles become longer. In winter, the situation is the opposite: heat inflows are minimal, and the unit cools down faster. Based on this, the recommendations for setting change.
In the summer, when the room temperature exceeds +25°C, it makes sense to shift the regulator towards lower temperatures (closer to 4-5). This compensates for the active heating of the walls and frequent opening of the doors. However, you should not immediately set the maximum value. It is better to start with 4 and observe the operation of the unit throughout the day. If the food starts to freeze, reduce the power; if it is not cooling, add it.
In winter, when the heating is moderate or the room is cool, it is optimal to use values 2-3. This is enough to maintain the freshness of the products, while the compressor will turn on less often, which will extend its life. If you keep the refrigerator in an unheated area (for example, on a glazed balcony), operation at temperatures below +10°C may not be possible without a special winter kit, since the oil in the compressor will thicken.
Specific settings of two-chamber and single-chamber models
The design of the refrigerator dictates its own rules for setting. In single-chamber models (where the freezer is located inside the refrigerator compartment and does not have a separate door), the thermostat controls the temperature in the main chamber. The freezer compartment here is cooled according to the residual principle. Therefore, by setting average values (3-4), you ensure normal cold in the main compartment, while in the freezer it will be about -12...-18°C.
In two-chamber models with separate doors and one compressor (Full No Frost or drip system) the situation is different. The thermostat is also located in the refrigerator compartment, but the cooling of the freezer also depends on its operation. It's important to find a balance here. If you set the temperature in the “refrigerator” too low (number 1-2), then the cold simply will not reach the freezer, and the food will begin to spoil. With the number 1, the freezer can operate in the “sub-freezing” mode (-6...-8°C), which is not enough for long-term storage of meat.
For two-chamber Atlantov with a system No Frost a more uniform air circulation is characteristic, but the setting requirements remain the same: the regulator controls the evaporator temperature. An error in setting can lead to the sensor turning off the compressor, “blowing” cold into the refrigerator compartment, but not completely cooling the freezer.
| Situation | Recommended figure | Expected result |
|---|---|---|
| Summer heat (+25°C and above) | 4 - 5 | Compensation of heat inflows, cold preservation |
| Normal conditions (+18...+22°C) | 3 - 4 | Economic mode, optimal storage |
| Winter period / Cool room | 2 - 3 | Prevention of excessive freezing |
| Loading warm products | 5 (temporarily) | Quick temperature recovery mode |
Instructions: how to set the temperature correctly
The process of setting the thermostat does not require special tools, but it does require consistency and patience. Don't expect instant results: the refrigerator takes 6 to 12 hours to fully stabilize the temperature after changing the settings. Trying to turn the knob every half hour will not lead to anything good.
☑️ Algorithm for setting the thermostat
For fine tuning, it is recommended to use a household thermometer for liquid. Place it in a glass of water on the middle shelf of the refrigerator. After a day, check the readings: the ideal range is from +2 to +5°C. If the thermometer shows +7°C or higher, add power (turn clockwise to higher numbers). If the water begins to freeze, turn it down (turn counterclockwise).
It is important to consider the location of the products. Dense loading requires lower temperatures (closer to 4-5), since air circulates less well between the bags. It is better to keep an empty or half-empty refrigerator at a minimum (2-3) so that it does not freeze out the air in vain. Also remember that opening the door frequently requires a reserve of cooling capacity.
⚠️ Attention: After changing the position of the regulator, do not try to speed up the cooling process by opening the door more often. This will push warm, moist air inside, which will lead to condensation and increase the load on the compressor.
Common mistakes and troubleshooting
One of the most common mistakes is setting the regulator to maximum (6-7) in the hope of cooling newly loaded products faster. This is a myth. The compressor operates with the same power, regardless of the position of the handle; Only the threshold for turning it off changes. By turning the knob to the maximum, you simply force the motor to work without interruption, which does not speed up cooling, but is guaranteed to lead to overheating.
Another problem is ignoring seasonality. Many users set it to “four” in winter and summer, not understanding why the refrigerator “doesn’t freeze” in summer and “freezes” in winter. The thermal balance of the room is a critical factor. It is also worth checking the door seal: if it is worn out, the cold leaves, and even at maximum power the unit will not be able to maintain the temperature while running idle.
What to do if the refrigerator stops turning off?
If you set the regulator to minimum (1-2), and the compressor hums continuously, the thermostat itself may be faulty or there is a freon leak. In this case, mechanical adjustment will no longer help - a specialist diagnosis is required.
Icing of the rear wall of the refrigeration chamber (in drip models) is a normal process if the ice melts while the compressor is idle. But if the “fur coat” constantly grows and prevents you from closing the door or spoils the food, this is a signal that the thermostat setting is too low. Reduce the value by 1 point and check the result in a day.
What number on the Atlant thermostat corresponds to maximum cooling capacity?
Maximum cooling corresponds to the highest number on the scale (usually 7 or 8). However, it is not recommended to use this mode constantly, as it leads to continuous operation of the compressor and possible freezing of food.
Why does the Atlant refrigerator not turn off after changing the settings?
This can happen for two reasons: either you set the temperature too low for the current conditions (for example, 7 in the summer in the heat), or there was a refrigerant leak/thermostat malfunction. Give the unit 10-12 hours to stabilize; if the mode does not return to normal, contact the service.
Is it possible to keep the regulator at one all the time?
You can keep it at one, but the temperature in the chamber will be about +8...+10°C, which is only permissible for storing some vegetables, drinks or in very hot rooms, where even at “1” the refrigerator can barely cope. This mode is not suitable for meat, dairy products and prepared foods due to the risk of bacterial growth.
Does the position of the regulator affect the freezing speed in the freezer?
Yes, directly. In single-compressor models, decreasing the temperature in the refrigerator compartment (increasing the number) leads to longer operation of the compressor, which allows the freezer to reach lower temperatures. To quickly freeze fresh meat, temporarily turn the regulator to maximum.