Whose compressor is in the Pozis refrigerator: manufacturers and characteristics

Owners of household appliances often ask the question of the origin of key components, especially when it comes to the durability of the unit. Refrigerators of the brand Pozis have earned a reputation as reliable “workhorses” on the Russian market, and this is largely due to the high-quality filling. The heart of any refrigeration equipment is the compressor, and it depends on its type and manufacturer how quietly the device will operate and how long it will last without repair.

Historically, the Pozis plant in the city of Zelenodolsk collaborated with various suppliers at different periods of time. If you bought equipment 10-15 years ago, there could be one motor inside, but modern models already have another one installed. Understanding what is installed in your particular case is critical when selecting replacement parts or when trying to determine the cause of a breakdown. In this article we will analyze in detail the evolution of suppliers and the technical features of components. which compressor installed in your specific case, is critical when selecting replacement parts or when trying to determine the cause of a breakdown. In this article we will examine in detail the evolution of suppliers and the technical features of nodes.

It is worth noting that the plant does not produce its own compressors, but purchases them from the world's leading concerns. Most often, in units Pozis you can find products from Danish, Italian or Chinese factories, the assembly of which is often carried out under license in different countries. Knowing the markings will help you not get confused in the range of service centers and order exactly the part that is guaranteed to fit your cooling system.

Main suppliers of compressors for Pozis

For many years, the main partner of the Pozis plant was the company Danfoss, and later its refrigeration division was separated into a separate one brand Secop. These motors are considered the standard of reliability for equipment of this class. They are characterized by low noise levels, high energy efficiency and the ability to operate in a wide temperature range. However, depending on the year of manufacture and the specific series of the refrigerator, suppliers could change.

In newer models, especially in budget lines or series with the system No Frostcompressors from other manufacturers are sometimes found. This could be Chinese Embraco (manufactured by Nidec) or even our own developments, assembled under license in China or Turkey. It is important to understand that the use of alternative brands does not always indicate a decrease in quality, but can affect the dimensions of the seat and electrical parameters.

⚠️ Attention: Do not try to replace the compressor Secop with an analogue Embraco without consulting a specialist. Despite the similar power, they may have different starting currents, the type of refrigerant and even the diameter of the tubes, which will require reworking the entire system.

To accurately determine the manufacturer, you need to look not only at the brand of the refrigerator, but also at the sticker on the motor itself. The country of assembly will be indicated there. You can often find motors assembled in China, but using Danish technology - this is normal practice for the modern global economy. The main thing is that the technical characteristics coincide with the design values of the refrigerator manufacturer. model range and country of assembly. You can often find motors assembled in China, but using Danish technology - this is normal practice for the modern global economy. The main thing is that the technical characteristics coincide with the design values ​​​​of the refrigerator manufacturer.

How to determine the model and manufacturer of a compressor

To find out whose motor is installed in your unit, you don’t have to be a refrigeration engineer. It is enough to carry out a visual inspection of the back of the device. There is always a metal nameplate or sticker with technical information on the compressor casing. This is the data you will need when searching for spare parts in catalogs or when communicating with a service center.

First of all, pay attention to the alphanumeric model code. Different manufacturers have different recording formats. For example, Danfoss/Secop models often begin with the letters BD, FL or NL, followed by a numerical designation of power. For Chinese analogues, the marking may be longer and contain more symbols indicating the type of refrigerant (R134a, R600a).

Also an important parameter is the type of refrigerant for which the unit is designed. In older models Pozis freon was often used R12, in newer ones - R134a, and in the most modern environmentally friendly versions - R600a (isobutane). Compressors for different types of freon not interchangeable without completely refilling the system and changing the oil, since the oils used are fundamentally different (mineral versus synthetic).

Technical characteristics and compatibility

When selecting a replacement compressor, the key parameter is the cooling capacity. It is measured in watts (W) or kcal/hour and must correspond. requirements of the evaporator of your refrigerator. If you install a motor of less power, the refrigerator will simply not reach the desired temperature, and the compressor will work without stopping, quickly burning out from overheating.

Another important aspect is the type of start. Most compressors in refrigerators Pozis are of the type RSIR (Resistor Start Inductor). Run) or RSCR (Resistor Start Capacitor Run). This means that to start they require a starting relay and, in some cases, a starting capacitor. Incorrect selection of the relay is a common reason that the new motor hums but does not start, or the circuit breaker in the apartment is tripped.

Below is a correspondence table for popular compressor models that are often found. using the Pozis technique:

It is worth remembering that inverter compressors in classic models Pozis they mainly use standard linear motors with a fixed rotation speed. This simplifies diagnostics, but makes the operation of the unit a little noisier compared to modern inverter analogues. premium class.

Features of operation of different types of motors

Compressors, which can most often be found in Pozis refrigerators, are famous for their “indestructibility.” They are able to withstand voltage surges in the network better than their Chinese counterparts, and they also have a weak point - sensitivity to the cleanliness of the system. If moisture or acid remains in the circuit after the old motor burns out, the new one will be damaged. data-i="110">may fail in a few months. Danfoss/Secop, which can most often be found in Pozis refrigerators, are famous for their “indestructibility”. They are able to withstand voltage surges in the network better than their Chinese counterparts, and have a high-quality winding cooling system. However, they also have a weak point - sensitivity to the cleanliness of the system. If moisture or acid remains in the circuit after the old motor burns out, the new Secop may fail after a few months.

Chinese compressors, such as Embraco or QD-series, are often more compact and cheaper. They cope with their tasks well under conditions of stable voltage. However, the service life of their bearings and valve group may be lower than that of theirs. Danish originals. In addition, they may be more sensitive to the quality of soldering of the tubes during installation.

⚠️ Attention: When replacing the compressor in the refrigerator Pozis be sure to use a filter drier. Its reuse is strictly prohibited, since the sorbent inside is already saturated with moisture and will not be able to protect the system from ice jams.

Particular attention should be paid to vibration. Some compressor models may have slightly different dimensions or mounting points. When installing a “non-original” motor, it may be necessary to weld the mounting tabs or use adapter rubber shock absorbers so that vibration is not transmitted to the refrigerator body, causing hum.

Typical faults and diagnostics

If your refrigerator Pozis stopped freezing, but the compressor is silent, the problem may not be in the motor itself, but in the start relay or thermostat. A common situation: you hear a click, the engine tries to start, hums for 3-5 seconds and clicks again, turning off. This is a classic sign of jamming a trigger mechanism or an interturn short circuit in the winding.

In the case when the compressor operates continuously, but there is no cold, and the tubes on the rear grille are only partially cold or warm, the following options are possible: freon leakage, capillary blockage tubes or loss of performance of the compressor itself (valve wear). You can check the compression by disconnecting the discharge tube and turning on the engine - it should produce a strong stream of air capable of blowing away a candle flame or repelling a finger.

Is it possible to restore an old compressor?

Theoretically, if the problem is jamming, there is a method of “boosting” by applying increased voltage. However, at home this is dangerous and rarely gives long-term results. For domestic use, it is more reliable and safer to completely replace the unit.

Noisy operation can also indicate problems. If a metallic clanging sound appears inside the compressor housing, this means destruction of the engine mount or valve group. You cannot operate such a unit - metal wear products will quickly clog the system and disable the new compressor if you decide to replace it without flushing the circuit.

Where to look for original spare parts

Finding a compressor to replace is not an easy task, since models are constantly being updated. You need to search not by the name of the Pozis refrigerator, but by the markings on the motor itself. Large online spare parts stores have cross-databases where you can select a complete analogue using the code Secop or Aspera .

When purchasing, pay attention to the condition of the product. The compressor must be hermetically sealed on both sides (inlet and outlet) and have pressure inside (when the plug is opened, a hissing sound of escaping nitrogen should be heard). If the plugs are removed or there is a smell of burnt oil coming from the pipes, such a unit cannot be taken.

It is also worth considering that the logistics of spare parts has changed in recent years. Some European models Danfoss may not be available, and they have to be replaced with universal analogues. In this case, it is critical to check diameter of the tubes (usually 6 mm or 8 mm) and the height of the motor so that it fits into the niche of your refrigerator without problems.

Frequently asked questions (FAQ)

Is it possible to put a compressor from another brand, for example, Atlant, into the Pozis refrigerator?

Technically, this is possible if the dimensions, power, type of refrigerant and diameter of the tubes match. However, Atlant compressors often have a different tube arrangement and can be noisier. It will be necessary to rework the copper pipelines and, possibly, replace the start relay.

Why, after replacing the compressor, does the refrigerator freeze, but is very noisy?

The noise may be caused by vibration due to improper fastening (the bolts are not tightened or the rubber shock absorbers are worn out). Also, the reason may be kinks in copper tubes, which begin to rattle against the housing or against each other when the motor is running.

What is the service life of Secop compressors in Pozis refrigerators?

Subject to operating conditions and a stable voltage in the network, original compressors Secop/Danfoss are capable of operating for 10-15 years and more. Chinese analogues usually last less - about 5-7 years, but strongly depend on the quality of the voltage in the electrical network.

Is it necessary to flush the system when replacing a compressor?

If the old compressor burned out (there was a winding breakdown), flushing the system with nitrogen and special solvents is mandatory. The acid formed when oil burns will quickly kill a new engine. If the motor simply stops starting without burning, it is enough to replace the filter drier.