The standard units series CTA are manufactured in 21 modular models of air volumes from 1.000 m3/h to 95.000 m3/h. It is possible to supply Air Handling Units, having dimensions settled according to specific needs and air volumes that can reach 200.000 m3/h for one single unit.

The choice of the size of an Air Handling Unit is mostly made according to two parameters: the air quantity to handle in m3/h and the speed through the coil in m/s.