KA, Air Handling Units

KAAir Handling Units

Modular air handling unit suitable for bespoke applications

  • Modular Design

  • Flexible Application

  • Fully Automatic Operation

  • Integrated Controls

Completely Modular

Systemair KA units are completely modular air handling units, with 46 standard sizes and with additional 14 sizes for larger units. 

Flexible Application

The unit is available in several executions including standard, hygienic and corrosion-resistant. 

Indoor/Outdoor Installation

Systemair KA units are suitable for indoor and outdoor installations with a fully factory-integrated control system. 

Certified Performance

Calculated and measured performance certified by Eurovent. Hygienic units are certified by TÜV NORD.


KA unit casing consists of a mounting frame, panels and a base frame. The width and height values are dependent on the required airflow, geometry and type of unit required. The length of the unit is dependent on built-in functional elements, the purpose of use, installation type, the position of the intake and the exhaust section. The casing interior, and exposed integrated elements have a smooth edge finish or rounded edges. 


KA control system allows easy adjustment of the working parameters either via a hand-held terminal or a building management system, which allows the parameters to be set via a computer or smartphone.


Quick selection and thermodynamic calculation of the unit can be made in airCalc++.

By using this application useful information about the unit can be provided such as:

• technical data for all modules

• heat recovery and coil calculations

• energy consumption

• acoustics data

• detailed technical drawings, dimensions and weights

• Mollier diagram