Owners of household appliances brands Atlant often encounter the mysterious abbreviation SF on the control panel. This symbol, as a rule, causes confusion among those who see it for the first time on the indicators of their device. In fact, behind these two letters lies one of the most important functions for long-term preservation of food quality - the fast freezing mode. Understanding the principle of operation of this option allows you not only to effectively use the volume of the freezer compartment, but also to extend the service life of the compressor.
The abbreviation SF is an abbreviation for the English term Super Freeze, which literally translates as “super freezing”. When the corresponding indicator lights up, the refrigerator goes into forced operation mode. During this period, the compressor operates without rest breaks, ensuring the lowest possible temperature in the freezer compartment. This is necessary in order to quickly freeze a large volume of fresh food, without giving it time to form large ice crystals that destroy the tissue structure.
In this article we will look in detail at how to correctly activate and deactivate this function to prevent overloading the engine. Typical user errors and nuances of operating equipment Atlant in various conditions will also be considered. Knowledge of these features will help you avoid breakdowns and provide ideal conditions for storing supplies.
Deciphering the abbreviation and principle of operation
As already mentioned, SF means intensive cooling mode. Under normal conditions, the refrigerator operates in cycles: it cools the chamber to a set temperature, then turns off and waits for the temperature to rise, after which the cycle repeats. However, when the function is activated Super Freeze the algorithm changes. The thermostat stops turning off the compressor and the unit runs continuously.
This creates extremely low temperatures, often dropping to -24°C or lower. This mode is necessary when you load a large amount of warm or room temperature food into the freezer. If you put a lot of meat or vegetables in as usual, they will take a long time to freeze. During the process of slow freezing, large, sharp ice crystals form inside the cells of the product, which tear the cell walls. After defrosting, such a product loses juice, vitamins and taste.
Regime quick freezing prevents this process. It “shocks” the products with cold, the water in the cells does not have time to gather into large crystals and freezes in the form of a finely dispersed structure. This preserves the freshness, color and nutritional properties of food for months to come. The SF indicator on the panel lights up immediately after pressing the corresponding button, signaling that the system has entered the active phase.
⚠️ Attention: Continuous operation of the compressor causes increased wear of parts and increased energy consumption. Do not keep the SF mode on all the time unless absolutely necessary.
How to turn on and off the SF mode
Control of the super freezing function in refrigerators Atlant depends on the specific model and type of control panel. In most modern electronically controlled units, to activate the mode, you must press the button indicated by the snowflake symbol or the letters SF. It is often necessary to hold the button for 3-5 seconds to avoid accidental activation.
After activation, the indicator will light up on the display, and in some models a sound signal may sound. It is important to understand that in this mode the refrigerator will stop responding to temperature settings. Even if you set it to -18°C, the actual temperature will be lower until the mode is turned off. In mechanical models (with twisters inside the chamber), the SF function may be absent or implemented through a separate switch.
To turn off the mode, you must press the same button again. Some modifications Atlant provide for automatic disabling of the function after a certain time (usually from 24 to 72 hours) if the user forgot to do this manually. However, you should not rely on automation, since long-term operation at the maximum capacity is harmful to equipment.
☑️ Check before turning on SF
When it is necessary to use super freezing
The use of the mode Super Freeze is justified in specific situations when you need to preserve maximum amount of fresh product. Regular freezing may not be enough if you are stocking up strategically for the winter or after a successful hunt or fishing.
- 🥩 Preparing meat and semi-finished products: If you have purchased a large carcass or a lot of minced meat, regular freezing will take too long, and the product in the center of the piece may begin to deteriorate before it freezes.
- 🍓 Seasonal berries and fruits: Strawberries, raspberries or cherries contain a lot of water. Quick freezing preserves their shape and prevents them from turning into porridge when thawing.
- 🍄 Mushrooms and vegetables: For forest and garden produce, it is critical to quickly pass the “crystallization point” in order to maintain texture.
This mode is also useful if you plan to rarely open the freezer in the next 24 hours. Since the temperature inside will be very low, this will create an additional safety buffer in case of short-term power outages or power surges.
Technical limitations and precautions
Despite the obvious benefits, the mode Super Freeze is stressful for refrigeration equipment. The compressor operates at the limit of its capabilities, which leads to heating of the motor and condenser. If the room is hot or the ventilation around the refrigerator is poor, the risk of overheating increases significantly.
In addition, when operating in SF mode, the walls of the freezer may become colder than usual. If there are poor quality plastic containers or glass jars containing liquid in the chamber, they may burst due to sudden temperature changes. Always use containers designed for deep freezing.
There is another important nuance regarding products placed nearby. If you are freezing a new batch of meat, and there are already frozen products in open packaging nearby, they may become “frostbitten” even more or become covered with excess frost due to the active movement of cold air masses.
⚠️ Attention: Do not fill the freezer with more than 2-3 kg of fresh food at a time, even using the SF mode. This can lead to incomplete freezing of the center of mass and spoilage of the product.
Comparison of refrigerator operating modes
To better understand the difference between the normal mode and function SF, it is worth considering their characteristics in comparison. This will help you make an informed decision about the advisability of using forced freezing in your situation.
| Parameter | Normal mode | SF mode (Super Freeze) |
|---|---|---|
| Compressor operation | Cyclic (on/off) | Continuous |
| Temperature in the chamber | Stable (about -18°C) | Reduced (up to -24°C and below) |
| Electricity consumption | Normal | Increased |
| Freezing quality | Standard | High (preservation of structure) |
| Duration of use | Constantly | Short-term (up to 3 days) |
The table shows that the SF mode is a tool for solving specific problems, and not for constant use. Its use must be dosed.
Effect on the refrigerant
During prolonged operation in SF mode, the pressure in the system may increase slightly. Modern refrigerants (R600a, R134a) are resistant to such loads, but older models of refrigerators can react by overheating the condenser tubes.
Frequent operating errors
Users often make mistakes that negate the effectiveness of the mode Super Freeze or harm equipment. One of the most common is forgetfulness. People turn on the function, load food, and a week later they wonder why the refrigerator is humming nonstop and electricity bills have increased.
Another mistake is loading hot food. Although the SF mode is designed for quick freezing, you cannot put a pot of freshly cooked soup into the chamber. This creates a colossal thermal load that the compressor may not be able to cope with, which will lead to its emergency shutdown or breakdown. Products must be at least at room temperature.
It is also a mistake to ignore the packing density. If the freezer is packed, cold air will not be able to circulate. As a result, the SF mode will work in vain, cooling only the surface layer of the food while the inside remains warm. It is necessary to leave gaps between bags for air circulation.
Diagnosing problems with SF mode
Sometimes users are faced with a situation where the SF indicator is on, but freezing does not occur, or, conversely, the indicator does not light up when the button is pressed. In the first case, the problem may lie in a refrigerant leak or a malfunction of the compressor, which physically cannot create the required pressure.
If the button does not respond, there may be a failure in the electronic control module. In such cases, a complete reboot of the refrigerator often helps: unplug it for 10-15 minutes, and then turn it on again. This will allow the system to reset errors and restart the controller.
It is also worth checking the integrity of the door seals. If the elastic does not fit tightly, warm air constantly enters the chamber. The SF mode will run endlessly, trying to compensate for heat loss, but it will never reach the desired temperature. The test can be done using a sheet of paper: hold it with a closed door and try to pull it out. If the sheet comes out easily without resistance, the seal requires replacement or adjustment.
Is it possible to leave the SF mode on for a week?
Strongly not recommended. Although technically the refrigerator can operate in this mode for a week, this will lead to excessive energy consumption and a significant reduction in the life of the compressor. The products will simply freeze and may lose their taste.
Why is the SF indicator flashing?
A flashing indicator usually signals an alarming condition. This may mean that the temperature in the chamber is higher than normal, the door is not closed tightly, or the defrosting process is in progress (in models with No Frost). If the blinking continues after closing the door, check the settings.
Does the SF mode affect the food in the refrigerator compartment?
In two-compressor models Atlant there is no effect, since the chambers operate independently. In single-compressor models, intensive operation of the freezer can lead to stronger cooling of the refrigeration chamber, so make sure that the food there does not freeze.
How long should you keep the SF on after loading the products?
The optimal time is from 12 to 24 hours, in depending on the load volume. After the food has completely frozen (become hard throughout its entire depth), the mode can and should be turned off.