According to their type, there are the following types of air conditioners: column or floor. Such air conditioners have a large capacity, that is, they emit large amounts of cold air. As a rule, such air conditioners are installed in rooms of large area, these are various halls of restaurants, halls and other. This type of air conditioners are installed in the premises of this type for the reason that, as a rule, they have no false ceilings. After all it is impossible to operate air-conditioners of cassette or duct type in such rooms. On the website you can find a lot of useful information.
Duct conditioners can be seen behind a false or false ceiling. After all, they tend to hide the outside unit.
There is an opinion that conditioner is able not only to cool air in the premise, but also to ventilate it. This is a deep misconception. Only few kinds of air-conditioners are able to do it, as for today it is only duct air-conditioners. Such conditioners as window-conditioners, also cassette and columnar split-systems have a possibility to ventilate air, but in limited quantity. As a rule, wall conditioners only cool or only heat air in a premise. For this very reason, as a rule, they have in their set a blowing ventilation system.
The best variant at that is a conditioner of a channel type. It copes with the fact that there is condensation of air, and also its ventilation.
Power of an air conditioner is its main indicator. It characterizes his work. That is why one should know before buying such goods the size of a premise where one is going to install air conditioner, the number of household appliances and their power, as well as the number of people who are in the premise.