First, it is necessary to select the appropriate air conditioning capacity. To calculate it, the following information is required: the room volume (m³), the orientation of the rooms relative to the cardinal directions, and the associated heat losses and heat transfer through walls, windows, and doors. When installing units in areas with higher energy demands (such as kitchens, server rooms, halls, and various public spaces), it is also necessary to take into account the number of occupants, the energy consumption of individual appliances, the frequency of door opening, and other factors. These items are only indicative, and I have certainly omitted many others.

Selecting the right air conditioning capacity is the first step. The calculation depends on room size, orientation, insulation, window areas, and other factors affecting heat gain and heat loss. In kitchens, server rooms, offices, and commercial spaces, additional considerations such as occupancy and equipment heat output must also be taken into account.