The question of the possibility of isolated shutdown of the freezer compartment in refrigerators Biryusa occurs among owners quite often, especially during periods when stocks of frozen food are exhausted, and there is nothing more to store in the freezer. Many owners strive to save energy or use the main compartment to store a large number of vegetables and fruits, which can be harmed by low temperatures in the sub-zero range. However, the technical implementation of this function depends on the specific series and year of manufacture of your unit.
It is worth immediately identifying a technical fact: in the vast majority of models, especially the Soviet and post-Soviet period, independent shutdown a freezer is not structurally provided. These devices operate on the principle of a single refrigerant or have a common compressor control system. However, there are ways to minimize energy consumption or adapt the operation of the equipment to your needs, which we will discuss in detail below.
Before you begin any manipulations with the settings or design, you need to accurately determine the type of your refrigerator. The further strategy of action and the possibility of achieving the desired result without harm to the equipment will depend on this.
Design features of Biryusa refrigerators
Refrigerators Biryusa, produced by the Krasnoyarsk plant, are divided into several main types according to the cooling system. Understanding these differences is critical because it dictates the physics of how the device operates. Old models, often called “crying” ones, use a drip defrosting system, where cold is generated in the evaporator of the freezer and naturally falls down.
In such systems, the evaporator is physically located in the freezer. If you try to “turn off” only it, blocking the access of cold, you will disrupt the circulation and the main compartment will stop cooling. More modern models equipped with a No Frost or "Low Frost" system have an extensive system of air ducts and fans, but even there the control often remains common to the entire volume.
⚠️ Attention: An attempt to mechanically block the dampers or seal the holes for supplying cold air in models with a single circuit can lead to overheating compressor and its failure.
Electronic control, found in new series, theoretically allows for more flexible adjustment of modes, but factory algorithms rarely provide for a complete stop of cooling in one of the compartments while the compressor is running. This is associated with the risk of condensation formation and disruption of the thermal balance.
Why can’t you just turn off the heating element?
In some models, users try to turn off the defrosting heating element, thinking that this will stop the freezer. This is a mistake: the heating element only defrosts the evaporator, but does not generate cold. Disabling it will only lead to ice accumulation and breakdown.
Is it possible to turn off the freezer separately: myths and reality
There is a persistent myth that the presence of two thermostats automatically means the possibility of independent operation of the cameras. In practice, in refrigerators Biryusa with two control knobs, one often regulates the temperature in the main compartment, and the second serves to adjust the operating mode of the compressor or freezing speed, but not to completely turn it off.
The reality is that complete shutdown the freezer compartment when the main compartment is running refrigerator is impossible without interfering with the electrical circuit, which voids the warranty and is dangerous. The compressor is turned on by a signal from a sensor, which is usually located in a warmer chamber or averages the readings. If the freezer is “turned off”, it will become warmer, but the compressor will work, trying to cool the main compartment, and will inevitably “freeze” excess in the upper part.
However, there is an exception - the “Vacation” or “Eco” mode, which is found in some digital models. In this mode, the temperature in the refrigerator compartment rises to +10..+15°C, and the freezer continues to operate. This is the opposite of what many people need, but it shows that electronics are capable of separating flows, although not in the direction we need (turn off the freezer, leaving the cold at the bottom).
- 🔹 Single compressor: One engine pumps freon to two evaporators at once or to one common one, which makes separate control difficult.
- 🔹 No solenoid valves: In budget models Biryusa there are no valves that shut off the supply of freon to one of the circuits.
- 🔹 Thermal connection: The wall between the chambers is often part of the heat exchange, so completely insulate temperature will not work.
Thus, if your goal is to turn a two-chamber refrigerator into a single-chamber refrigerator with an increased volume, it is technically easier and safer to physically dismantle the freezer (if the design allows, as in some old Sviyag or early models), but in modern monoblock cases this impossible. Biryusa), but in modern monoblock cases this is not possible.
Analysis of models with electronic and mechanical controls
The difference between mechanical and electronic models Biryusa is colossal when it comes to fine tuning. In mechanical units, everything is decided by the position of the thermostat knob. Turning the knob to the “0” or “Off” position stops the entire refrigerator. An attempt to find the “golden mean”, where the freezer does not freeze, but the bottom works, is doomed to failure due to the inertia of the system.
Electronic control panels, such as in series Biryusa 133 or Biryusa 135, offer settings menu. Here you can find the “Super Freeze” or “Intensive Cooling” functions. These modes force the compressor to work, but do not turn off individual zones. Some advanced models allow you to set the exact temperature, for example, +3°C in the refrigerator compartment, but the freezer will still tend to its standard -18°C.
| Control type | Possibility of separate shutdown | Risk of breakdown during setup | Example series |
|---|---|---|---|
| Mechanical | Absent | Low (if you don’t break the handles) | Biryusa 6, 8, 10 |
| Electronic (basic) | Absent | Medium (electronics failure) | Biryusa 131, 132 |
| Electronic (premium) | Partial (eco modes) | Medium | Biryusa 135, 139 |
| No Frost | Absent | High (impaired circulation) | Biryusa 380, 480 |
Owners of models with electronics should be careful with experiments. Accidentally entering the service menu or resetting the settings can lead to incorrect operation of the sensors, and then the refrigerator will begin to work in emergency mode, either constantly or not turning on at all.
Instructions: setting the temperature mode to save
Since it is impossible to completely “turn off” the freezer, the most rational solution is to set the temperature mode for the lowest possible energy consumption, at which the food in the main compartment will not spoil. This is true if the freezer compartment is empty.
For mechanical models, it is necessary to find the position of the thermostat at which the compressor works the least, but in the refrigerator compartment the temperature is kept within the range of +5..+7°C. Usually this is the position of the knob between the numbers 1 and 2 (where 1 is the weakest cooling, 5-7 is the strongest). Do not set the regulator to minimum (0), otherwise the food will spoil.
☑️ Setting up the economy mode
In electronic models the process looks simpler, but requires care. Go to the temperature settings menu. Set the refrigerator compartment to +6°C or +7°C. This is the upper limit of safety for most products. The freezer, if there is such an option (rarely), you can also try to set it to -6°C or -10°C, if the model allows it, but most often it will remain at -18°C.
To reduce the load, you can fill the empty space with plastic water bottles or foam, but this is only an indirect measure.
⚠️ Attention: Do not Cover the temperature sensors (if visible) with food or cloth in an attempt to “trick” the refrigerator. This will cause the compressor to run idle or, conversely, turn off when the chamber becomes warm.
Problems when trying to modernize and their consequences
Some “craftsmen” attempt independent modernization, wanting to achieve the desired functionality. Often this involves installing an additional thermostat that would break the compressor power circuit when a certain temperature in the freezer is reached, or installing a servo-driven damper. Such interventions are strictly not recommended without specialized engineering education.
The consequences can be dire. Violation of the tightness of the circuit when attempting to insert will lead to freon leakage. An incorrectly selected thermostat can “snap” the compressor into short cycles (on-off every 2-3 minutes), which will kill the engine in a few weeks. It is also possible that the capillary tube may freeze due to a violation of the thermal regime.
In addition, any opening of seals or violation of the factory wiring diagram is grounds for refusal. warranty service. Considering that Biryusa is an affordable segment equipment, the cost of such modernization and subsequent repairs may exceed the cost of a new refrigerator.
- 🔸 Refrigerant leakage: Risk arises with any intervention in the tube system.
- 🔸 Compressor combustion: Due to incorrect operation of thermostats or overheating.
- 🔸 Loss guarantees: The manufacturing plant will immediately notice third-party intervention.
If you vitally need a large refrigerated space without a freezer, it is more logical to purchase a specialized refrigerator-cabinet or freezer separately than to try to remake a universal unit.
Vacation mode and other useful functions
Although there is no direct “Refrigerator only” switch, some modern Models Biryusa with electronic control have a mode that is often confused with the desired one. This is Vacation mode. Its logic of operation is the opposite: it turns off or minimizes the operation of the refrigeration chamber (maintaining about +15°C there so that mold does not form), leaving the freezer to operate as normal.
Why is this necessary? So you can go away for a month, remove all perishable food from the main compartment, leave the door slightly open (some instructions say) or just closed, and not worry about electricity. The freezer continues to store supplies.
To activate this mode, you usually need to:
Press the "Mode" or "F" buttonHold the combination of buttons (depending on the model, for example, Freeze + Temp) for 3-5 seconds until the corresponding icon on the display (often a palm tree or a suitcase).
If your goal is to use the entire volume for vegetables, the “Vacation” mode will not help, since, on the contrary, it heats the main compartment. You only have to manually set it to minimum cooling, as described in the section above.
FAQ: Frequently Asked Questions
Is it possible to physically remove the freezer compartment from the Biryusa refrigerator?
In most modern models, no, since it is a monoblock. In old Soviet models and some early versions of Biryusa, the freezer drawer could be a removable element inserted into a niche, but even in this case, the refrigerator will continue to try to freeze this niche, since the evaporator is often built into the wall or ceiling of the chamber. Removing the drawer will simply increase the volume of air that needs to be cooled.
Why does the freezer work, but the refrigerator does not freeze?
This is a classic problem of a freon leak or a clogged capillary system. In refrigerators with one compressor, the cold goes first to the freezer. If there is little freon, it is only enough for the evaporator of the freezer, and it does not reach the main compartment. It is also possible for the air supply channel to freeze in No Frost models.
How to completely defrost a freezer without turning off the refrigerator?
Technically, this cannot be done using standard means. You'll either have to unload the food from the main compartment and turn off the entire unit, or (as a last resort) use a hair dryer to speed up defrosting, being careful not to melt the plastic. But you still have to turn off the device.
Is there a difference in energy consumption if the freezer is empty?
Yes, an empty freezer consumes less energy than a full one, but not significantly. The main expense goes to compensate for heat inflows through the walls. However, if the freezer is full of food, they act as a cold accumulator and the compressor turns on less often. An empty chamber quickly heats up when opened, forcing the motor to work more often.