An air conditioning system is a system capable of ensuring control of both the temperature and humidity of an environment, as well as good air quality throughout the year.

To achieve these objectives, it is necessary to design the system by knowing the seasonal humidity values, the external temperatures of the room, the volumes to be air-conditioned and the technical details useful for plant sizing.

With the air conditioning system it is possible to regulate the temperature of the air, cooling or heating the environment thanks to the thermodynamic transformations that take place inside the machine. The cooled or heated air is then circulated by a fan and by varying the speed of the fan it is possible to introduce more or less cooled or heated air into the environment.

The cold air conditioning system is composed of the refrigeration unit which is essentially composed of a refrigeration compressor and an air condenser which is generally installed outside, usually on a balcony and/or external facades of the house. Thanks to a hole in the masonry, hydraulic and electrical connections are made inside channels specially created in the walls of the accommodation. In various rooms, one or more splits are then installed, i.e. air conditioners that aspirate internal air through a remote control releasing it treated, while in humid environments it dehumidifies and the water eliminated is channeled into a hydraulic tube and expelled.

Hot air conditioning systems are powered by a thermal generator that produces a hot heat transfer fluid. The generator can be a boiler, which can operate the system only in hot mode, or a heat pump. In the latter case, the system can operate both in cold and hot mode. The double function is guaranteed by a “four-way” valve that reverses the working cycle of the refrigerant.

To improve the aesthetics of buildings, there are also air conditioners without an external unit on the market.