Refrigeration equipment of the brand Pozis has proven itself as a reliable technique that can maintain food freshness for many years. However, many owners encounter difficulties during initial setup or after defrosting the unit. An incorrectly selected compressor operating mode can lead to spoilage of supplies or, conversely, to the formation of excessive ice.
The question of how to set the temperature in the Pozis refrigeratorbecomes especially relevant when load volumes change or seasonal changes in room temperature. Understanding the principles of operation of the thermostat allows you to extend the service life of equipment and ensure ideal storage conditions.
In this article we will analyze in detail the design of control panels, the configuration features of various models and the optimal values for the freezer and refrigerator compartments. You will learn to read the device signals and adjust the operation of the cooling system without calling a technician.
The principle of operation of the Pozis thermostat
The main element of climate control inside the chamber is thermostat. In classic models Pozis this is a mechanical device that responds to changes in the temperature background. When the air inside reaches a preset threshold, the contacts open and the compressor stops.
When the temperature rises, the process starts again. The user does not set the exact degrees Celsius, but regulates the cooling strength. The scale on the regulator usually has a digital designation, where lower values correspond to warmer conditions, and higher values correspond to intense cold.
It is important to understand that the number “1” does not mean one degree of heat, but indicates the minimum power of the motor. The maximum scale value (usually 5 or 7) makes the compressor work almost without interruptionwhich can lead to freezing of the evaporator.
Electronic control systems found in more modern series allow you to set parameters with an accuracy of one degree. However, even in such systems, the basic principle remains the same: maintaining a balance between heat supply and cooling capacity.
Deciphering the power adjustment scale
The standard refrigerator control panel Pozis is equipped with a rotary knob with divisions from 1 to 5, 6 or 7. Many users mistakenly These numbers are believed to represent degrees. In fact, these are indicators of cooling intensity.
The operating mode directly affects the duration of the engine on and off cycles. The higher the number is selected, the longer the compressor runs and the colder it becomes inside the chambers. For standard operating conditions, the middle position of the knob is recommended.
If you set the knob to minimum, food may begin to spoil due to insufficient cold. Setting it to maximum in hot weather will force the equipment to work at its limit, which can lead to overheating of the motor and increased power consumption.
There is also a “0” or “Off” position. In this mode, the supply of electricity to the compressor is completely stopped. This mode should only be used when the equipment is idle for a long time or during defrosting.
Optimal temperature conditions for different products
To ensure food safety, it is necessary to maintain certain temperature ranges. In the main chamber, values from +2 to +5 degrees Celsius are considered ideal. Under such conditions, bacteria multiply slowly, and food remains fresh.
The freezer must provide a temperature of -18 degrees or lower. This allows you to freeze foods quickly, preserving their structure and beneficial properties. Different types of supplies may require their own settings.
- 🥩 Meat and fish: require the lowest temperature threshold, it is advisable to store them in the freshness zone or at the back wall.
- 🥛 Dairy products: sensitive to changes, optimally placed on the middle shelves away from the door.
- 🥬 Vegetables and fruits: are better preserved at a slightly higher temperature, about +4...+6 degrees, so they are placed in the lower drawers.
If you notice that the milk sours faster than usual, and condensation appears on the walls, then the temperature is too high. In this case, it is necessary to turn the regulator towards increasing numbers.
Conversely, if the food in the main chamber freezes and a thick ice crust forms on the back wall, the cooling power should be reduced. The adjustment is made smoothly, at intervals of several hours to stabilize the processes.
Instructions for setting up single-chamber models
Single-chamber refrigerators Pozis (Biryusa, Mir series, as well as old Pozis models) have one common door, but inside they are divided into refrigerator and freezer compartments. The control here is most often mechanical, through a thermostat located inside the refrigerator compartment.
To start setting, open the door and find the regulator handle. It can be located on the inner wall, under the lampshade or at the top of the chamber. Make sure that the refrigerator is connected to the network and is working.
⚠️ Attention: Do not make sharp turns of the regulator knob through the entire range. Move the switch smoothly, without jerking, so as not to damage the mechanical part of the thermostat.
The sequence of actions should be as follows:
- Set the handle to the middle position (usually number 3).
- Load the products, but not fill the chamber tightly, leave space for air circulation.
- Wait 6-8 hours for the temperature to stabilize.
- Check the condition of the food and the presence of frost.
If it is not cold enough in the freezer compartment, but everything is fine in the refrigerator compartment, you may need to check the seals or quantity refrigerant, since in single-chamber models the cold is transferred from the freezer evaporator.
☑️ Check after setup
Setting up two-chamber Pozis refrigerators
Two-chamber models Pozis (for example, series RD, RK, Mir) are equipped with separate chambers, but often have one compressor and one thermostat that controls the refrigeration compartment. The freezer compartment is cooled due to cold circulation or a separate circuit (in No Frost models).
In such units, the setting is done in the same way: by turning the knob inside the refrigerator compartment. However, it is important to keep a balance here. Cooling the refrigerator compartment too much can lead to excessive freezing of moisture and over-drying of food.
In models with the system No Frost or Frost Free it is important not to block the ventilation openings with food. Cold air should circulate freely between the compartments. If you cover the air ducts, the temperature sensor does not take real readings, and the compressor will not work correctly.
To accurately diagnose the operation of a two-chamber unit, you can use a household thermometer. Place it in a glass of water on the middle shelf a day after setting it up. The readings should correspond to the desired values (+3...+5°C).
Seasonal adjustment and external factors
Ambient temperature significantly affects the operation of refrigeration equipment. In summer, when the room is hot, the heat flow through the walls of the unit increases. The compressor has to work longer to maintain the set mode.
In winter, when the indoor air is cool, the load on the equipment is reduced. During this period, it may be necessary to adjust the settings to avoid unnecessary shutdown of the motor or, conversely, its continuous operation.
The table below shows the dependence of the recommended position of the regulator on operating conditions:
| Environmental conditions | Room temperature | Recommended position | Features |
|---|---|---|---|
| Summer / Hot | +25°C and above | 4-5 (Maximum) | Heat flow has increased, powerful operation is needed |
| Normal | +18...+22°C | 3 (Average) | Standard operating mode |
| Winter / Cool | +16°C and below | 2-3 (Minimum) | Reduced heat flow, resource saving |
| Full load | Any | 4-5 | Requires cooling of a large volume of food |
It is also worth considering the location of the refrigerator. If it is located next to a stove, battery, or in direct sunlight, it will have to be switched to a more intensive operating mode all year round.
Do not forget to ventilate the room. In a stuffy kitchen, the heat exchange efficiency of the condenser (grid at the back) drops, which also affects the final temperature inside.
Diagnosis of problems with incorrect settings
Incorrectly set temperature often masks or, conversely, provokes malfunctions. If you turn the knob to maximum, but the refrigerator still does not freeze, the problem may be a freon leak or a compressor malfunction.
The opposite situation: the knob is set to minimum, and the food freezes. This may indicate sticking contacts of the thermostat or a violation of the door seal, due to which warm air constantly gets inside, causing the motor to work without stopping.
⚠️ Attention: If, at any position of the regulator, the refrigerator makes unusual sounds, gets very hot on the side or does not turn off at all for more than a day - immediately unplug the device and contact service.
A common mistake is to try to “speed up” the cooling of newly loaded products by setting the maximum mode. This is ineffective and harmful to technology. It is better to load food in small portions.
Monitor the condition of the sealing gum. If it is worn out, the cold will go away, and no adjustment of the thermostat will help create the necessary conditions inside.
Why can’t you put it hot?
Loading hot products causes the compressor to work hard, trying to compensate for the sharp rise in temperature. This can lead to overheating of the motor and deformation of the plastic elements of the camera. Allow the food to cool to room temperature before putting it in the refrigerator.
Frequently asked questions (FAQ)
What does a flashing indicator on the control panel mean?
In models with electronic control, a flashing indicator usually indicates an increase in the temperature in the chamber above the critical temperature norms. Check if the door is closed tightly and if you have recently loaded a lot of warm food. If the blinking continues for more than a day, the sensor may fail.
Is it possible to leave the refrigerator on on the balcony in winter?
Most refrigerators Pozis belong to the climate class SN-N-ST. They are not recommended for use at temperatures below +10°C or above +32°C. Working in cold weather can lead to thickening of the oil in the compressor and breakdown, as well as to defrosting of food during a thaw.
How often do you need to defrost a Pozis refrigerator?
Models with manual defrosting require disconnecting from the network every 4-6 months, when the ice thickness reaches 3-5 mm. No Frost and Low Frost systems do not require regular defrosting, but preventive washing of the chambers with water and soda is recommended once a year.
Why does the refrigerator take a long time to gain temperature after defrosting?
After defrosting and turning on the unit takes time (from 2 to 6 hours) to reach operating mode. It is not recommended to load products during this period. Make sure the control is set to the middle position and not to the minimum.