Inverter compressor
Inverter compressors, though more expensive than linear compressors, are more advanced, efficient, and produce less noise. The main difference between the two is that linear compressors operate at either maximum speed or not at all, causing temperature fluctuations and wear and tear (due to increased currents at starting mode). In contrast, inverter compressors allow for smooth power control, adjusting the speed to maintain set conditions and consuming electricity more efficiently. However, their high cost remains a disadvantage.
Functions
Common features that apply directly to the entire appliance include
holiday mode,
control via smartphone,
child lock,
display,
door alarm,
auto door closer, and
reversible door. More about them:
— Holiday mode is an energy-saving feature intended for times when the refrigerator is not in use for an extended period, such as when there is no food inside. During this mode, the temperature inside the fridge compartment is kept around 12 degrees, which helps prevent the development of mold and unpleasant odors.
— Control via smartphone. This feature allows users to access and manage the unit from anywhere with an internet connection. This is achieved through Wi-Fi connectivity to a router or smart home system. The control can be done through a smartphone application or a web page available on any browser. This function provides users with information about the refrigerator's operating mode, including temperature, humidity, malfunctions, and emergency situations. The control via the internet is convenient and provides flexibility in controlling the refrigerator.
— Child lock. Many modern refrigerators come with safety features designed to prevent small children from tampering with the settings. These features usually involv
...e locking the control panel to prevent accidental adjustments. However, child locks for the doors are not typically included as a standard feature and must be purchased separately.
— Display. Displays can be found on refrigerators of various levels, from basic to advanced models. Regardless of the level, the display adds convenience to the operation of the unit by providing detailed information about its operation and displaying useful data, such as the time. In some cases, the display can also integrate with other smart home components. However, the cost of refrigerators with such features is typically higher.
— Door alarm. The refrigerator door alarm system alerts the user if the door has been left open for an extended period of time or not closed properly. This prevents spoilage of food due to a critical increase in temperature. The alarm usually gives a sound signal after a certain amount of time and some models also have a light indicator to confirm the correct closure of the door.
— Auto door closer. Auto-closing devices are installed on some refrigerators and are responsible for assisting in the closing and, in some cases, opening of the door. This helps to reduce the risk of leaving the door partially open or closed, while also ensuring a smooth, shock-free movement that can prolong the life of the refrigerator.
— Reversible door. Refrigerators with a classic design offer the ability to choose the location of the hinges, allowing users to decide on which side the door will open for optimal access. note that this function is only available for classic design models, including refrigerated display cases (see “Type”). This feature is not available in Side-by-Side and French Door models due to their design.Fast cooling
Forced cooling mode is available in some refrigerators, and it significantly increases the cooling intensity of the refrigerator compartment. It's important to note that
fast cooling needs to be turned on and off properly to avoid overloading the compressor. Some models have an automatic shut-off feature, but it's important to check for this feature separately.
Deodorizer
A deodorizer is a device that eliminates unpleasant odours in the refrigerator caused by spoiled food or products with strong smells. It purifies the air inside the fridge, preventing foreign odours from being absorbed by other products. This is important as some foods have a tendency to absorb strong odours, which can spoil their taste and quality.
Controls
Refrigerator control panel. To date, there are such options:
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Rotary switches. While a rotary switch technically has the potential to be used for a wide range of functions, in practice, this variety is typically only found in basic models with limited functionality. In such cases, control is often done manually by turning a thermostat knob, with limited options for adjusting temperature, humidity, and other settings.
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Push-buttons. CRefrigerators can have a control panel with classic buttons that offer various functionalities depending on the model. These functionalities can range from basic adjustments (similar to rotary switches) to fine-tuning of temperature and humidity, control of special modes, and more. Compared to rotary switches, push-buttons generally offer a wider range of possibilities.
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Touch. Touch panels are a modern and stylish control option for refrigerators, which requires a light touch to operate. They are considered the most advanced type of control, providing convenient and extensive functionality. Touch panels are typically installed in premium models, where they add to the device's aesthetic appeal with a minimum of unnecessary protruding parts.
Energy class
The energy class that the refrigerator corresponds to.
Energy consumption classes were originally designated with Latin letters from
A (the most efficient) to D (least efficient), but with technological advancements, more advanced classes such as "A+", "A++", etc. were introduced to indicate increasing levels of efficiency. The more pluses a device has, the more economical it is. This was necessary due to the correlation between energy consumption and decreasing efficiency.
For modern built-in refrigerators, the efficiency indicator at the level of class A can be called average,
A+ — not bad,
A++ — good,
A+++ — excellent. Energy consumption rates B and C are rare and mostly found in outdated or cheaper models. Achieving high efficiency requires design innovations, which results in higher device prices. However, these prices can be justified by the resulting reduction in electricity bills. It's worth noting that some built-in refrigerator models are available in different energy consumption classes, allowing customers to choose the best option for their budget and energy efficiency needs.
Energy class (new)
The energy efficiency of a refrigerator is measured by a parameter classified from A to G, with A being the most efficient. Originally, only up to class A was available until newer, more efficient models were introduced and labeled as A+, A++, and A+++. However, in March 2021, manufacturers reverted to the original labeling system from G to A to avoid creating more pluses. This means that modern models will have the new labeling system, while older ones will maintain their original markings.
Energy consumption per year
The average amount of energy consumed by a refrigerator in a year of operation.
The given parameter is an estimated value and assumes that the refrigerator operates under stable conditions without sudden temperature changes, frequent door openings, and within its designated climate class (see below). Actual energy consumption may deviate slightly from the stated value. Despite this, it is a useful parameter that allows for a rough comparison of different models in terms of energy efficiency.
It should be noted that the energy consumption per year is often a more practical and convenient parameter than the energy consumption class (see above), which is a relative indicator of how efficient a refrigerator is compared to other models of similar size and features. The energy consumption per year, on the other hand, provides an estimate of the actual electricity cost when using a particular refrigerator. For instance, a small two-door refrigerator with an energy class of A can consume less energy per year than a large side-by-side refrigerator with a class of A+++, despite the fact that the latter is formally more energy-efficient than the former in terms of its energy class.
Noise level
This parameter indicates the level of noise that the refrigerator produces while operating. A noise level of 40 decibels is similar to the average volume of human speech, 50 decibels is similar to the background noise in an office, and 80 decibels is similar to traffic noise. The lower the noise level of the refrigerator, the more comfortable it will be to use.