How many motors are in the Atlant refrigerator: design and standards

When choosing or repairing household appliances, one of the key issues is the number of compressors, since this parameter directly affects the reliability, energy efficiency and noise of the unit. For Belarusian brand equipment Atlant this question is especially relevant, since the manufacturer produces modifications with both one and two engines, and it is often impossible to visually determine their number just by looking at the facade.

Understanding how many motors are installed in your model will help to correctly diagnose faults and plan the budget for repairs and understand the features of defrosting. In this article, we will analyze in detail the design differences between one- and two-compressor systems, their impact on the operation of the refrigerator and freezer, and also answer the most frequently asked questions from users.

Design features of Atlant refrigerators

Refrigerators Atlant have historically been famous for their simplicity and maintainability. The classical scheme, which was used in most Soviet and post-Soviet models, assumed the presence of one compressor. In such a system, the refrigerant circulates through a single circuit, passing first through the freezer compartment and then cooling the refrigerator compartment. This decision was dictated by saving resources and simplifying the design.

However, modern requirements for the quality of food storage and energy efficiency have led to the emergence of dual-circuit systems. Such models independent circuits allow you to cool the freezer and refrigerator compartment separately from each other. This means that two compressor units are physically installed in the unit, each of which is responsible for its own temperature range. This scheme is found in more expensive and larger models of the brand.

It is important to note that the presence of two motors does not always mean the presence of a system No Frost. In the lines Atlant there is often a combination where the freezer has automatic defrosting, and the refrigerator compartment has a drip system, but at the same time it operates from a single circuit with one motor. Therefore, external signs, such as the absence of frost, are not a 100% indicator of the number of compressors.

⚠️ Attention: When purchasing used equipment or spare parts, never rely solely on the serial number. The design can be changed by the manufacturer within one model group, so a visual check or study of the technical tag on the back wall is mandatory.

Models with one compressor: how it works

Most budget and mid-budget refrigerators Atlant equipped with one compressor. Such devices use a special solenoid valve that redirects the flow of refrigerant. When it is necessary to lower the temperature in the freezer, the valve opens the way for freon directly to the freezer evaporator. If the temperature there is reached, and it is warm in the refrigerator compartment, the valve switches the flow, and the refrigerant goes into the main compartment.

The main advantage of this scheme is low energy consumption and lower noise levels, since there is only one motor. In addition, the cost of repairs if the compressor fails will be lower. However, this system also has disadvantages: if a single motor breaks down, both compartments are defrosted, and the speed of freezing products may be lower than that of double-circuit analogues.

Technically, it looks like this: the motor-compressor builds up pressure, hot gas goes into the condenser (grid at the back), cools and turns into liquid, then passes through a filter-drier and a capillary tube, where it sharply expands and cools down. This entire cycle is controlled thermostat or by an electronic unit, which gives the command to switch circuits or stop the engine.

Two-compressor systems: independent cooling

Two-compressor refrigerators Atlant are in essence, two independent refrigerators in one housing. Each compartment (freezer and refrigerator) has its own compressorcondenser (often they are combined into one grid, but the circuits are separated) and its own evaporator. This allows you to achieve lower temperatures in the freezer faster and more efficiently.

The main advantage of this design is autonomy. If one motor fails, the second one will continue to work, keeping food in at least one of the compartments. Also, dual-circuit systems cope better with the mode super-freezeswithout affecting the temperature in the main chamber. This is critical for those who make large stocks of meat or berries.

However, these advantages come at a price: two motors create more noise and consume more electricity. In addition, the probability of breakdown doubles, since the resource is consumed by two mechanical components. Models Atlant with two compressors often use more complex control electronics, which can also affect the cost of maintenance.

How to determine the number of motors without opening

There are several reliable ways to find out how many compressors are installed in your refrigerator without resorting to the help of a technician. The simplest method is to visually inspect the rear wall of the unit. The motors are located in the lower part, usually covered with a metal or plastic casing. If you see two black “barrels” (compressors) and two start relays, it means the system dual-circuit.

The second way is to study the technical sticker. There should be a label with the model and technical specifications on the back wall or inside the refrigerator compartment (on the side wall). Look for the compressor markings. If one type of refrigerant and one power are specified, most likely there is one motor. If the documentation or label indicates parameters for two circuits or two different refrigerants (rarely, but it happens), this is a sign of two motors.

The third method is observation of operation. Turn on the refrigerator and listen. If, after stopping the engine, after some time the click and start is heard again, but the sound comes from the same point and is no different in character, it is the same motor. If you hear the engine starting from the other side of the case or the nature of the vibration sound changes dramatically, perhaps the second unit has come into operation.

Comparison of characteristics: one versus two

To finally decide With which system is better, and to understand what exactly is in your home, it is useful to compare key indicators. Below is a table showing the main differences between one- and two-compressor models Atlant.

The choice between these options depends on your priorities. If silence in the kitchen and saving electricity are important to you, a single-circuit model will be optimal. If you often freeze large volumes of food and do not want to risk their spoilage when equipment breaks down, overpaying for a two-compressor system may be justified.

Frequent breakdowns and their relationship with the number of motors

Statistics of service centers show that the nature of the malfunctions is directly related to the number of compressors. In single-circuit models Atlant the most common problem is failure of start relay or the compressor itself due to long-term operation without rest. Since there is only one motor, it is forced to work more intensely, especially in summer or when fully loaded.

In dual-circuit systems, problems are often of a paired nature: while one motor is working normally, the second may have an exhausted resource. Also, in such models, freon leaks in one of the circuits are more common, which requires more complex diagnostics. The technician needs to determine in which circuit the pressure has lost, since this is not always noticeable visually.

Another problem that is typical for both types, but has a different effect on operation is a malfunction of the thermostat. In a single-circuit refrigerator, a thermostat failure can lead to the motor not turning on at all, or, conversely, not turning off, causing food problems. In dual-circuit systems, the sensor of only one chamber usually fails, so the second continues to operate normally. freezing products. In dual-circuit systems, the sensor of only one camera usually fails, so the second continues to operate normally.

⚠️ Attention: Replacing the compressor yourself requires a vacuum pump, a pressure gauge station and skills in soldering copper tubes. Improper evacuation of the system will lead to rapid breakdown of the new motor.

Recommendations for operation and care

No matter how many motors are installed in your Atlanta, you can extend their service life by following simple rules. First of all, ensure adequate ventilation of the rear wall. Compressors must efficiently release heat to the environment. The distance to the wall should be at least 5-7 cm, and even more in the niche.

Secondly, avoid overloading the cameras. Although modern motors are powerful, constant operation at the limit of their capabilities reduces their service life. Do not put hot foods inside, this forces compressor to work hard, trying to reduce the temperature.

Check the door seals regularly. If the rubber is cracked or does not fit tightly, warm air enters and the engine is forced to turn on more often than expected. For single-compressor models, this is especially critical, since they do not have a power reserve of the second engine.