Brand refrigeration equipment Polair widespread in the commercial and home sectors use due to its reliability and functionality. However, even the highest quality equipment requires proper configuration to ensure long-term storage of products. Many owners encounter difficulties during the initial start-up or after defrosting, when it is necessary to accurately set the temperature.
Incorrect settings can lead to damage to supplies or excessive energy consumption. In this article we will look in detail at how to set the temperature in a Polair refrigerator, taking into account the features of various models of thermostats and electronic control units.
The principle of operation of the Polair thermostat
The main element responsible for the microclimate inside the chamber is the thermostat. Depending on the series of equipment, refrigerators Polair can use mechanical or electronic controllers. Mechanical models, such as T-110 or T-112, work based on changes in the volume of a temperature-sensitive element (bellows) with a change in temperature.
Electronic systems, for example Polus TM-2 or Micro-202, read readings from sensors and control the compressor through a relay. Calibration accuracy in such systems is much higher, which allows you to maintain a given mode with minimal fluctuations. Understanding the type of your regulator is the first step to proper tuning.
⚠️ Attention: Before starting any manipulations with the settings, make sure that the refrigerator is unplugged for at least 5-10 minutes if you are resetting the parameters, or simply operating in normal mode, if required (fine tuning).
It is important to distinguish between the concepts of “air temperature” and “product temperature”. Sensors usually measure the heating of the evaporator or the air in the chamber, so the actual temperature inside the package may differ. System inertia Takes time to stabilize the readings after each change of settings.
Setting up a mechanical thermostat
Most household and some commercial models Polair use a mechanical regulator with a rotary knob. The scale usually has numbers from 1 to 7 or from “Min” to “Max”. It is important to understand that these numbers do not indicate degrees Celsius, but indicate the cooling intensity.
The higher the number, the colder it will be inside the chamber. To set the optimal mode, it is recommended to turn the knob to the middle position (usually 3 or 4) and leave the refrigerator for a day. If the food freezes slightly, turn the knob towards lower values. If the cooling is insufficient - towards larger ones.
- ❄️ Turn the knob counterclockwise to reduce the cold.
- 🔥 Turn the knob clockwise to increase freezing.
- 🛑 Do not turn the knob to maximum unless necessary, this increases the load on the compressor.
There is a common misconception that the number “5” means +5 degrees Celsius. This is wrong. The actual temperature depends on the ambient temperature (room temperature), the chamber load and the tightness of the seals. Mechanical thermostat requires periodic checking using an external thermometer.
Working with electronic controllers
Modern refrigerators Polair, especially the CB i DMseries, are equipped with electronic control units. Settings here are made via the keypad and digital display. The standard procedure involves entering the user menu, where you can set the target temperature.
Entering the setting mode often requires pressing and holding a button Set or a combination of buttons for 3-5 seconds. The current value flashes on the screen and can be changed using the Up or Down buttons. After selecting the desired value, you must confirm the action, otherwise the settings will not be saved.
⚠️ Attention: Specifications and interfaces of the controllers may be updated by the manufacturer. Always check the exact sequence of actions with the current instructions supplied with your specific equipment model.
Particular attention should be paid to the parameter hysteresis (differences in temperature on and off). By default it is usually 2-3 degrees. This means that if you set it to +4°C, the compressor will start at +6°C and stop at +2°C. Changing this parameter unless necessary is not recommended.
☑️ Setting up the electronic unit
Optimal temperature conditions for different products
Correct setting directly affects the shelf life of the contents. Different categories of products require different storage conditions. In refrigerators Polair with a system No Frost or static cooling, the distribution of cold may differ, so it is important to know where to place supplies.
| Product type | Recommended temperature | Shelf life (approximate) | Placement area |
|---|---|---|---|
| Fresh meat | 0...+2°C | 2-3 days | Bottom shelf |
| Dairy products | +2...+4°C | 3-5 days | Middle shelves |
| Vegetables and fruits | +4...+8°C | 5-7 days | Bottom drawer |
| Ready meals | +2...+5°C | 1-2 days | Top shelves |
Violation of the temperature regime leads to the growth of bacteria or, conversely, to crystallization of moisture in products. Freezing vegetables with a high water content at the wrong temperature makes them unsuitable for consumption after defrosting. Make sure that the food does not touch the back wall of the chamber where the evaporator is located.
Why can’t you put hot food in the refrigerator?
Placing hot food sharply increases the internal temperature, causing the compressor to work harder. This leads to the formation of condensation, ice and possible damage to neighboring products due to short-term heating.
Decoding error codes and faults
Electronic systems Polair equipped with a self-diagnosis function. If sensors fail or the system malfunctions, error codes may appear on the display. The most common signals are associated with a malfunction of the temperature sensor (dS or Err) or parameters falling outside acceptable limits.
If the refrigerator does not reach the set temperature, check the tightness of the door and the absence of drafts. Sometimes the problem lies not in the settings, but in condenser contamination or lack of refrigerant. Defrost sensor can also give false readings if it is covered with a layer of ice or dirt.
- 🔍 Check the integrity of the wires going to the sensor temperature.
- 🧊 Make sure that the sensor is not frozen into the ice crust.
- ⚡ Try rebooting the controller by turning off the power for 10 minutes.
In some cases, replacement is required thermostat or calibrating a new sensor through the service menu. To carry out such work, it is better to contact specialists, since incorrect calibration can lead to a “runaway” temperature and damage to the entire contents of the chamber.
Frequent errors during operation and their consequences
One of the most common mistakes is setting the minimum temperature immediately after loading a large amount of warm products. This will not speed up cooling, but is guaranteed to overload compressor. The system will work at the limit of its capabilities, trying to achieve a value that is currently unattainable.
Another mistake is ignoring seasonal changes. In summer, when the room is hot, a slightly more intensive operating mode may be required, while in winter, in an unheated room, standard settings may lead to excessive freezing. Climate class equipment determines the permissible range of ambient temperatures.
⚠️ Attention: Operating the refrigerator at an ambient temperature below +10°C (for most household models) can cause the oil in the compressor to solidify and fail.
Regularly checking the actual temperature using an independent thermometer will help avoid problems. Once every six months, it is recommended to review the settings and clean the sensors from dust. This will extend the life of the equipment Polair and keep your food fresh.
The effect of filling the chamber on the temperature
An empty refrigerator cools down faster, but holds the cold worse when the door is opened. A full chamber (70-80%) operates more stable, since frozen foods act as a cold accumulator.
Additional maintenance recommendations
For stable operation of the cooling system, it is important not only to set the temperature correctly, but also to ensure good heat transfer. Periodically check the rear grill of the refrigerator for dust and lint. A clogged condenser causes the unit to work longer, which throws off the temperature settings.
Also monitor the condition of the rubber seals on the doors. If they are worn out or dirty, the cold will escape and the thermostat will keep the compressor running constantly. Simply washing the seals with a soapy solution can improve the situation.
What to do if the Polair refrigerator does not keep the temperature?
First of all, check the tightness of the door closure and the absence of foreign objects that interfere with closing. If the door is ok, check the thermostat settings - they may be out of order. If the problem cannot be solved, there is likely a freon leak or a thermostat malfunction, which requires calling a technician.
How often do you need to defrost a Polair refrigerator?
Models with the No Frost system do not require manual defrosting; it is enough to wash them 1-2 times a year. Models with a drip system or static cooling need to be defrosted as an ice crust of 3-5 mm thick forms, usually once every 4-6 months.
Is it possible to transport the Polair refrigerator lying down?
Transporting the refrigerator in a lying position is not recommended, but is possible over short distances if strict rules are followed. After transportation in a horizontal position, it is necessary to allow the equipment to stand vertically for at least 4-6 hours before turning it on, so that the oil flows into the compressor.