
This work deals with thermal comfort and energy efficiency in the building. In Africa, more specifically in humid tropical regions like Benin, when the need for comfort is felt, several means are used. Among the alternatives put in place, it is recorded that air conditioning facilities are a high priority to overcome the problems of discomfort. But, it is clear that for the design of these air conditioning systems, the most used method is that of surfaces. A method that does not take into account all the parameters necessary to provide ideal air conditioners and with a good coefficient of energy performance. And this is due to the fact that there is no digital dimensioning tool that takes into account all the necessary parameters while respecting the requirements of the standards in force. In this context, the sizing method adopted is the Carrier method because it takes into account all the parameters that are taken into account in the sizing of air conditioning systems and the programming language used is W Language. Called M@doc, the tool obtained also makes it possible to size the power of the air conditioner necessary for the air conditioning and meets the environmental and energy performance standards.