An inverter air conditioner or an inverter, this improved version of the conventional air conditioner, working on the principle of dual voltage conversion. After reading this article, you'll learn why these air conditioners more expensive than they are better, and how to choose the right model.
What it is in the inverter air conditioner. Differences from the conventional inverter air conditioner
The content of the article
- What it is in the inverter air conditioner. Differences from the conventional inverter air conditioner
- Principle of operation
- Pros and cons of inverter air conditioners
- Top 3 air conditioners inverter
- Care for the inverter air conditioner
To understand what is the difference from the classic inverter air conditioner, you need to have a general idea about the structure of this equipment.
As is known, air conditioner consists of two main units - internal and external. The indoor unit monitors the temperature of the cooled space by the sensor and sends a signal to the capacitor to change the operation mode.
Also, in the indoor unit is an evaporator in which refrigerant (Freon for household devices) changes its physical state from liquid to gas, while absorbing thermal energy external environment. So there is a reduction of the room temperature.
In the outdoor unit is another important element of the system - the condenser. In it under the action of the compressor freon goes back from gas to a liquid and releases heat into the environment. This heat is removed via the heat sink and fan.
In a conventional air conditioner operating modes are only two - he is working at full capacity or idle. Thus, the temperature is regulated quite rude. From time to time in the system formed by excess cold, which have discharged to the environment, which leads to inefficient operation of the device.
the inverter compressor can be operated at different capacities. Thus, the heat exchange process between the blocks, and hence the space cooling will proceed more smoothly and accurately.
Principle of operation
An inverter built into the air conditioner, the inverter is an alternating electric current to DC and back. This allows control of compressor frequency by voltage, which is constant and mains is 50 Hz.
On the inverter input AC power is supplied and converted to DC. Then, an inverse transform is performed in alternating current and the output frequency is generated, the capacitor required to provide the necessary heat transfer rate.
device control unit reads a value from the temperature sensor and adjusts output frequency of the inverter by changing the intensity of the compressor.
At start-split system is activated at full power before approaching cooled to room temperature specified. In classic peak voltage drop occurs, caused by the start of the compressor. inverter electronics allows for "soft" start and conclude at maximum power.
After entering the mode the compressor is not switched off just as in a traditional air conditioner. It reduces the power to approximately 10% of nominal. As soon as the room temperature rises above operating power increases in the limit loads of comfort.
Pros and cons of inverter air conditioners
Benefits Inverter systems are derived from the principle of their work:
- more economical at start and modes distant from the limit capacity;
- can function for a long timeNot limited to 8 hours a day, as in classical models;
- more durable due to lack of impact and the system parts in the vicinity of the limit power levels;
- more precise temperature control (1-1,50C) by changing the frequency of the compressor;
- heating during the cold season option - properties Freon allow to do it at a temperature of -250FROM;
- lack of network congestion.., That is a device basically works on optimum power;
- less noisy - for the same reason;
- provide a more comfortable cooling in comparison with conventional devices.
disadvantages inverter air conditioners are as follows:
- First of all, they are significantly more expensive;
- the presence of double-conversion loss current;
- more demanding quality electrical - electronic control unit can not transfer voltage surges;
- due to the presence of external power inverter has become more severe overall and that complicates the assembly process and imposes additional requirements for structural strength;
- more expensive to maintain and repair because of the greater number and variety of parts.
The efficiency of the inverter device can be both an advantage and a disadvantage. All depends on its operation mode: the output to a predetermined temperature and after the operation in an optimal frequency range no idle losses and smooth operation of the compressor block the loss on double current conversion.
However, if the unit is used at close to maximum capacity all the time, the inverter will not be able to realize its advantages, at the while the loss of the double current conversion may lead to significant deterioration in efficiency compared to conventional models. Efficiency of each converter is not more than 90%, which means we are talking about permanent net loss, depending on the capacity.
Thus, we can draw two conclusions:
- Inverters are not recommended for use in areas such as the kitchen, where the heat-generating devices are installed - stoves, kettles and the like, or office space with a large air exchange;
- should pay special attention to the selection of power and provide the necessary margin for continuous and efficient operation of the inverter device.
Top 3 air conditioners inverter
To determine the best producers and, moreover, the models must identify evaluation criteria. Depending on their use will have different requirements. For example, we can talk about the best models available, for use in residential areas, on systems for universal use or Economy options.
According to the rating of one of the providers, specializing in the climate system, in the category of a highly reliable inverters the leading position occupied by Japanese brands: Daikin, Mitsubishi Electric, Mitsubishi Heavy Industries.
Among the highly reliable top three winners also made Japanese manufacturers: TOSHIBA, Mitsubishi Heavy Industrie, HITACHI.
Leaders in popularity among economy models are:
- Ballu (Russia);
- Lessar (Czech);
- General Climate (Russia).
Care for the inverter air conditioner
Like any other equipment and air conditioning system requires regular inspection and maintenance. In operation, the inverter pumps a huge amount of air that is polluted by dust particles, especially on the lower floors of homes megacities. All this dust settles on the filter and partially penetrates inside the external unit.
In the absence of maintenance, the system creates the conditions for growth of bacteria, mold is formed, which can eventually lead to failure of the units or even become a potential source of bacterial diseases in a cooled room.
To avoid these negative effects it is necessary to carry out routine maintenance of the inverter maintenance, including antibacterial treatment, replacement of the filters by slopes and replace / refill refrigerant, cleaning of the heat exchanger and other necessary operations.
It is also recommended to periodically check the level of oil and Freon.
