2. Different air-conditioning systems

In summer, an air-conditioning system should be able to maintain room temperature at 5-6°C below the outside temperature, and humidity at an acceptable level (65%), depending on outside conditions.

For reasons of aesthetics and noise pollution, it's important to choose the right location for the outdoor unit, so as not to inconvenience the neighbors, who may complain and force you to move the heat pump. It should not be placed in a sunny area, otherwise the condenser will have difficulty evacuating the heat.

There are several ways of classifying air-conditioning systems; generally speaking, there are four product families:

• direct expansion systems ;

• air/air systems ;

• all-water systems ;

• water...