What ıs the AHU?

An air handling unit is a ventilation system that is generally used in large buildings or industrial facilities. Air handling units are designed to control indoor air quality and manage factors such as temperature, humidity, airflow and filtration.

Air handling units generally consist of various components, these are; air filters, fans, dehumidification units, heaters, coolers, heat recovery units and air distribution channels. These components work in coordination with each other and adjust the temperature, humidity and quality of the air to provide the desired temperature and humidity levels indoors.

Air handling units provide many advantages such as saving energy, improving indoor air quality and reducing operating costs. Therefore, they are widely used, especially in large buildings and industrial facilities.

Air handling units usually consist of a number of components. These are:


One of the basic components of the air handling unit is fans. The fans provide the ventilation system of the air handling unit by drawing and pressing the air.

Forward curved bladed fans are a type of fans used for ventilation and air transport in the industrial sector. These fans allow air to move at a lower speed but at a higher volume. Forward curved condenser fans have a special design with blades inclined more than straight blade fans. This curved design allows the fan to operate at a higher efficiency and produces lower sound levels. In addition, more efficient operation of the fan results in less energy consumption and lower operating costs. This type of fan is often used in large indoor areas such as factories, warehouses, parking lots and stadiums. Forward curved bladed fans can create high-pressure air streams that can carry air longer distances and increase air circulation, allowing the ventilation system to operate more efficiently.

Plug fans are a type of fan used in ventilation and air conditioning systems in industrial applications. These fans are mounted in a fixed position just behind or in front of a motor, inside or outside the piping system, and connected to the system via a short duct. For this reason, they are also called "plug" fans. One of the biggest advantages of plug fans, especially when used for ventilation in large enclosed spaces, is that the system has a small enough design to fit in a smaller space. This can reduce both installation costs and energy consumption. Another advantage of plug fans is that they allow the air flow in ventilation systems to be regulated. Because these fans are equipped with motors whose speed can be adjusted with the help of a control panel. This allows you to precisely control the airflow and helps to better manage the air circulation in the system. In addition, since the motors of the plug fans can be at the front or the back depending on the position of the fan, maintenance and repair operations can be performed easier and faster. This lowers operating costs.


Filters are located at the air intakes of the air handling unit and improve air quality by keeping dust, dirt, pollen and other particles in the air.

heatıng and coolıng coıls

The heating and cooling coils heat or cool the air stream passing through the air handling unit.

dehumıdıfıcatıon unıt

Dehumidification units are used to reduce the amount of moisture in humid air.

Control panel

The control panels of the air handling unit control and regulate the operation of the system components.


Diffusers distribute air and keep indoor air flowing in the right direction.

heat recovery

Heat recovery in air handling units is a method used to increase energy efficiency. Heat recovery is achieved by using the heat energy coming from the air handling unit outlet air and is an environmentally friendly solution.