Air conditioners have rightly become part of our consciousness as essential appliances for home appliances, so we can combat the high temperatures during the summer months. The aim of the text is to inform the reader, in a simple and understandable way, about the basic features and available technologies in the field of air conditioners. It should be stressed that the following information is by no means intended to replace the scientific analysis of a specialist engineer, which is the safest way to choose our air conditioner.
Power Selection (BTU)
The first feature that we should be concerned about is the power of the air conditioner. By “power” we mean the amount of heat (energy) that either the air conditioner can absorb in cooling mode or let it into heating mode so that the temperature changes from an “A” value to a value “B” . In the field of air conditioners, the power is calculated in “BTU” (British Thermal Unit). Calculating the power the air conditioner needs to be able to change the room temperature is a complex process that requires scientific analysis, as we must take into account a multitude of parameters. Indicatively, the most important are the following:
The volume of space
Building materials of the building (insulation / aluminum frames)
The floor where the test room is located (penthouse or mezzanine floor)
The orientation of space
The crowd of people in the air conditioner
The power of the remaining electrical devices that exist in the space
Since the scientific processing of the above-mentioned data is quite complicated, an indicative table is given which correlates the power of the air conditioner with the area of the space for which it is intended. With the help of the board, we will avoid buying an ultra-small or large machine (on the BTU side).
If the air conditioner is particularly small then it will be insufficient for optimal cooling or heating of the room and will be in continuous operation, increasing the consumption and the possibility of failure. On the other hand, if the air conditioner is large enough, it will be switched on and off at a particularly high frequency, resulting in the dehumidification of the room and its inefficient operation. Consequently, the view that the air conditioner should be as large as possible on the BTU side is inaccurate.