Ventilation and air conditioning

Controlled ventilation system according to DIN 1946-6

The calculation module for controlled ventilation system was newly designed for version 8. The calculation of the flow rates are in accordance with DIN 1946-6, for which the general requirements for the "nominal ventilation" is determined. We describe the module exemplifying the process. Please click on each step in the image.

Adjust and optimize air flow

After you have defined the properties of the usage unit in tab Lüftung you compute the balance of air flow.

In the upper part of the dialog you see all the parameters that determine the outdoor air flow rate according to DIN 1946-6. The table lists all rooms in the usage unit. You have the following options:

In case you like to further adjust the air distribution, you can change the air flow of individual rooms manually. In this case you will be responsible to ensure that the balance between supply and exhaust air flow is maintained. DDS-CAD indicates when both values differ.

To change the properties of a room:

  • Click on the value "qv.gew". The context menu appears.
  • Select Edit. You can enter a numeric value, which can be based on the values in the "Min/Max" columns (1).
  • Press  [Enter]. The changed value is highlighted in bold. A new calculation of the outside air flow rate is no longer possible. With "Reset" you can reset the values and unlock it.