Important Basics on Air Handling Unit - PDF

An air handling unit, commonly called an AHU, is the composition of elements mounted in large, accessible box-shaped units called modules, which house the appropriate ventilation requirements for purifying, air-conditioning or renewing the indoor air in a building or premises.

They are usually installed on the roof of buildings and, through ducts, the air is circulated to reach each of the rooms in the building in question.
Main functions of an AHU

In addition to managing the proper ventilation of the interior with outside air, the AHU performs other functions:Filtration and control of the quality of the air that will reach the interior, thanks to the air purification filters, and depending on the retention of these filters, the air will be clean.
Control of the air temperature that regulates the air conditioning system in cold or hot, so that the thermal sensation in the interior is the desired one.
Relative humidity monitoring for greater indoor comfort.

For its part, the places for which the AHU is intended are those in which the flow of people is very large and accumulates many people at the same time and whose natural ventilation is limited: hotel dining rooms, function rooms, restaurants, convention halls... It is also a suitable option for those spaces with very high hygiene requirements: laboratories, clean rooms or operating theatres, among others. An AHU can also be used to ventilate places where air conditioning is provided by radiators or underfloor heating, for example.

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