03/10/2014 05:10








Air-Conditioning Technologies

Α) Inverter

What is Inverter technology?

τεχνολογία Inverter

Inverter technology, controls the power of the air conditioner. By changing the frequency of the power supply or the complaint, it ensures smooth linear variation of the rotational speed of the compressor which is the "heart" of your air conditioner. This allows the alignment of the cold and the heat output to the required individual real operating conditions. When the temperature of the conditioned space is very different from the set temperature, the air conditioner operates with the maximum power, ensuring fast reaching to the desired temperature. Once the desired temperature of the conditioned space is reached, the compressor precisely adjusts the power to maintain the desired temperature. 

Why units with Inverter technology are more economical?   Inverter technology thanks to the efficiency of air conditioning units is significantly higher during the operation at full load and part load. Given that, the air conditioning units operate more than 80% of their time at part load, the higher efficiency units with technology inverter, lead to significant energy savings of up to 30 ~ 40% of the annual energy consumption compared with fixed speed units respective strengths.

Advantages of inverter technology

  • Reaches the desired temperature faster

  • Start time is reduced by 1/3

  • Saves energy and money due to 30% less energy consumption

  • Avoides repetitive compressor operation, in other words there is no voltage peaks

  • The energy cost is reduced by1/3 (compared to normal units on / off)

  • No temperature fluctuations

Β) Constant speed conditioners

Constant speed conditioners function by yielding stable voltage. Once the desired temperature is reached, they stop.


  • Frequent starts.

  • They are always full-loaded.

What is the energy efficiency class of the units?

ενεργειακή κλάση των μονάδωνEnergy Class is the classification of air conditioning units, depending on their energy consumption. Community legislation requires all new air conditioners coming with a label with the "energy label" of the device. The classification is done in seven different categories, A to G, with A indicating the most efficient unit and G the least efficient, which should in any case be avoided to use. Usually the most appropriate option is energy class A or even B. Choosing an air conditioner with high energy class is usually equipped with engine and compressor Inverter ensuring comfort and operating economy. Note that the choice of a unit with a high efficiency A + and the use of inverter technology can bring savings in operating costs up to 50% compared with a conventional fixed speed units and Class B Energy.

Air Conditioning Categories

  • Central

  • Cemi-Central

  • Domestic

Central air-conditioning

Αερόψυκτες αντλίες θερμότητας
Air Cooled Heat Pumps
Υδρόψυκτες αντλίες θερμότητας
Water Cooled Heat Pumps
Κλιματιστικά package-rooftop
Air conditioning packaged-rooftop
  • Cemi-Central Air Conditioning

Α) Air ducts (channels)
Air Conditiones by channelling air through a duct network

Κλιματιστικά αεραγωγών Κλιματιστικά αεραγωγών Κλιματιστικά αεραγωγών

Β) Ceiling Cassettes

Κασέτες ψευδοροφής Κασέτες ψευδοροφής Κασέτες ψευδοροφής

C) Cabinets


D) VRV multi-split systems
Applications for small and medium-sized as large residences, commercial buildings, hotels etc.

Πολυδιαιρούμενα συστήματα VRV Πολυδιαιρούμενα συστήματα VRV Πολυδιαιρούμενα συστήματα VRV

Domestic Air-Conditioning

Α) Wall Air-Conditioners

Κλιματιστικά τοίχου Κλιματιστικά τοίχου Κλιματιστικά τοίχου

Β)Small multi-split (MULTI)

Systems with an external unit and two to four internal.

Μικρά πολυδιαιρούμενα MULTI Μικρά πολυδιαιρούμενα MULTI Μικρά πολυδιαιρούμενα MULTI