5 Optimization of Working Conditions
5.4 Air Conditioning

Air conditioning is a technological process that serves to maintain the desired temperature and relative humidity in a building. The values of temperature and relative humidity are set to a constant. The air conditioning unit, therefore, can heat, cool, humidify or dehumidify the air.

The air conditioner unit can be central for the whole building or local for each room individually. Central air conditioning units are equipped with heat recovery systems to save energy.

Besides special buildings, where it is necessary to condition the whole area, local conditioning of rooms is far more often, as it is described in the text below.