How to eliminate: "Maximum air flow velocity exceeded"

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Product InstalSystem 5
Type of article TIP&TRICK
Source for translation 2025-01-10


Problem description

The problem may occur after the project calculation on the scope Ventilation systems and is reported in the Diagnostics window with the Warning message:

  • Maximum air flow velocity exceeded (%s m/s > %s m/s).

Solution

If a message about exceeding the vmax value in the ducts appears, the following steps can be taken to correct this issue:

  • select the duct types with larger diameters as default, for a specific location, in the General data/Ventilation systems/Types and default data window;
  • select the larger diameter type for individual ducts in the Data table after first selecting the ducts (a two-click on the diagnostic message selects the problematic ducts);
  • make the distribution with a greater number of ducts;
  • insert additional air diffusers/extractors;
  • increase the value in the Maximum air flow velocity, vmax box as default in the General data/Ventilation systems/Types and default data window or in the Data table window for particular ducts.
    1. General data/Ventilation systems/Types and default data.

    2. Ventilation duct - Data table.