It is known that, since it’s creation, the air-conditioner device has gone through several modifications in it’s technologies, from the size to working and operating methods. Among that technologies, we can mention the Inverter System.

Split hi-wall example.

Probably, you must have heard about this type of air-conditioner. The great difference between this system and the normal one is the way that the compressor works. But for you to understand that, you must first understand how the normal one works.

Normal System

When you turn on the device, the compressor is triggered to get to the chosen temperature. After reaching the desired temperature, the compressor is turned off and your air-conditioner remains only ventilating.

The temperature is constantly checked by the device to detect any alteration. When the device realizes that the temperature is changing, the compressor is triggered again to correct the temperature.

This way, the compressor expends more electrical energy, because when it is used in the maximum power, it cause a “peak of light”, that brief drop in energy, that we can observe mostly by the fading of the lamps brightness.


Inverter System

In this system, the process is totally different. When you turn on the device, the compressor is triggered at maximum speed, so that it can get to the chosen temperature very fast. After that, the compressor keeps working, on a very low rotation, just to keep the temperature. In case the temperature changes, the compressor accelerates to maximum power to correct the temperature, than gets low again.

That means a great saving in your electricity bill, because what need more energy in an air-conditioner device is the impulse of the compressor. So, further than saving money, this system has more life span than the other, because it avoids it’s own wearing. Isn’t it great to have an Inverter System? Look at the image below and see the comparative between the Inverter (green) and the Normal (blue) systems.


Of course all this technology has a higher price, and for now can only be found in the Split air-conditioners. But, surely, the additional cost that you pay is worth in the end, if we consider the energy saving of these devices.


  • Text: Rafael Lumertz
  • Edition: Esdras Nunes
  • Translation: Thales Vinhola

© 2017. Climatização Lumertz.

Licença Creative Commons
What is an Inverter air-conditioner? de Thales Vinhola está licenciado com uma Licença Creative Commons – Atribuição-NãoComercial-CompartilhaIgual 4.0 Internacional.

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