When choosing household appliances or planning repair, many consumers are wondering about the reliability of the heart of the unit. In the case of the Belarusian brand Atlant, whose reputation is built on affordability and durability, the type of engine installed plays a decisive role. It is this unit that determines how quietly the equipment will operate, how much electricity it will consume and how long it will last without expensive intervention.
Historically, the plant has used various technologies, adapting to changing requirements for energy efficiency and availability of components. Early models were equipped with time-tested piston units, while modern lines are increasingly equipped with inverter solutions. Understanding the differences between them will help you not only when purchasing, but also when diagnosing faults.
In this article we will analyze in detail what compressors are in the Atlant refrigerator the most common ones, analyze their technical features and discuss the nuances of maintenance. You will find out why some models hum louder than others, and whether it is worth replacing the old motor with an inverter analogue if it breaks down.
The evolution of engines: from classics to innovations
For a long time, the Atlant plant collaborated with European manufacturers, which allowed produce high quality equipment. The main supplier for a long time was the Danish company Secop (formerly Danfoss). These piston compressors were famous for their indestructibility and ability to work for decades in harsh conditions.
Over time, in an effort to reduce the cost of the final product and improve energy performance, the manufacturer began to introduce solutions from other brands. The range now includes engines from Italian Aspera (Embraco) and Chinese factories. This has led to the fact that in the same chamber volume there can be components with completely different characteristics.
⚠️ Attention: When ordering spare parts for repair, always rely on the model indicated on the nameplate of the old motor, and not just on the year of manufacture of the refrigerator. During the same period, the plant could use different components depending on logistics.
Modern requirements for environmental friendliness and quiet operation pushed engineers to implement inverter technologies. Such engines do not have a rigid connection to the shaft speed, which allows for smooth power control. This radically changes the nature of the operation of the refrigeration unit, making it almost silent in temperature maintenance mode.
Types of compressors used
Today, three main types of engines can be found in Atlant refrigerators. Each of them has its own design features, advantages and disadvantages. Knowing these differences is critical for a master or owner planning a replacement.
The first type is classic linear compressors. They work on the principle of “turned on - cooled - turned off”. This is a time-tested scheme that is easy to implement and maintainable. However, such motors consume more energy when starting and produce a characteristic relay click when starting.
The second type is inverter models. It uses a frequency converter that controls the speed of rotation of the shaft. Inverter compressor never stops completely, but only slows down when the desired temperature is reached. This ensures minimal wear of the rubbing pairs and a stable microclimate in the chamber.
- 🔹 Secop (Danfoss): Considered the standard of reliability, often found in old and medium-sized models, they have high maintainability.
- 🔹 Aspera (Embraco): Italian roots, good performance, often installed in two-compressor models of medium class.
- 🔹 Chinese analogues (Jiaxipera, LG): Budget solutions that are massively replacing European brands in new lines of equipment.
The third type, less common in the mass segment, but found in premium series, is engines with variable performance. They occupy an intermediate position between linear and full-fledged inverters, allowing you to save resources without excessively complicating the electronics.
Technical characteristics and markings
To correctly select an analogue or understand the capabilities of your equipment, you must be able to read the markings. An information sticker or data is stamped on the body of each engine. It shows the refrigerant, oil type, cooling capacity and voltage.
Particular attention should be paid to the type of refrigerant. Old models worked on freon R134awhich is safer than its predecessors, but still requires caution when disposing of it. New Atlant refrigerators are already being massively switched to R600a (isobutane). This gas is explosive in high concentrations, therefore it requires special equipment for refueling and special safety measures when soldering.
Below is a table comparing the main parameters of popular engines that can be found in equipment of this brand:
| Parameter | Linear (R134a) | Linear (R600a) | Inverter |
|---|---|---|---|
| Noise level | Average / High | Average | Low |
| Inrush current | High | High | Minimum |
| Work life | 10-15 years | 10-15 years | 15-20 years |
| Difficulty of repair | Low | Low | High (module replacement) |
It is also important to consider the cooling capacity, measured in Watts or BTU. Installing a more powerful motor “by eye” can lead to the fact that the evaporator will freeze too quickly, and the control system will not be able to correctly monitor the temperature, which will cause malfunctions.
Features of two-compressor systems
Many Atlant models, especially large ones, are equipped with two compressors. This technical solution implies the presence of a separate motor for the refrigerator compartment and a separate one for the freezer compartment. This scheme has a number of undeniable advantages over single-circuit systems.
Firstly, it is complete independence of the zones. You can defrost the freezer while leaving the refrigerator running, or even turn off one of the compartments if there is nothing in it. Secondly, each motor operates in its optimal mode, without being overloaded to maintain a huge temperature difference throughout the entire volume at once.
☑️ Diagnostics of a two-compressor refrigerator
However, it is worth noting that the presence of two motors increases the overall noise level and electricity consumption, although modern models have learned to minimize this effect. Most often, such systems use low-power motors that operate almost silently.
⚠️ Attention: Atlant two-compressor models often use different types of freon or different filling volumes for each circuit. Do not try to combine circuits or swap components without deep knowledge of thermodynamics.
Problems and malfunctions of Atlant compressors
Despite the overall reliability, even the best engines fail. The most common problem that owners face is water hammer. It occurs when liquid freon or oil enters the compressor cylinder at startup. The piston cannot compress the liquid, and the valve group is destroyed.
Another common problem is overheating. If thermal relay (the protective device) does not operate in time, the motor windings may burn out. This often happens due to contamination of the condenser (the grill at the back of the refrigerator) or poor ventilation. Dust and animal hair act like a blanket, preventing heat from being removed.
Signs of a malfunction are usually obvious:
- 🔸 The refrigerator hums, but does not cool (the compressor works, but does not pump).
- 🔸 The motor starts for a couple of seconds and immediately clicks, turning off.
- 🔸 A metal clanging or knocking sound is heard inside the casing.
- 🔸 The motor housing heats up to temperatures dangerous to touch.
In some cases, the cause It is not the motor itself that fails, but start-up relay. This is an inexpensive part that is often the first to fail. Before replacing an expensive compressor, it always makes sense to check and replace the relay, especially if the model is old.