Plenum boxes
Plenum Boxes

The type H plenum box is a side-connected plenum box for supply and exhaust air for the Versio range of diffusers. The plenum box can be equipped with an adjustment damper and a measuring device, depending on the configuration required.
The adjustment damper is operated from the front of the box by means of a graduated handle with integrated locking mechanism.
K-factors for determining the volume flow are printed on the damper handle. The plenum box has a low overall height and has internal sound insulation of fibre-free material.
For configuration with an integrated ceiling solution, the box is equipped with a frame and/or a face plate, depending on the type of ceiling. For further details, see the Versio range of ceiling diffusers.

  • Can be used for both supply and exhaust air.
  • Can be connected regardless of straight ducting before the box
  • Detachable damper and plenum plate for access to duct
  • The same box is used for all face plates and ceiling systems
Plenum Boxes

MB is a plenum box for supply and extract air, intended to achieve a stable airflow into diffusers, air flow measurement and balancing and also to attenuate sound from the duct system.
MB is available with several damper options and has small overall dimensions to ease up installation and handling.
Damper type B is an unique linear cone damper which allows to balance with a high pressure drop over the box with low sound generation. Furthermore the construction of the damper gives an accurate and reliable measurement.
Damper type B is available for both supply and extract and has a readable K-value scale and can therefore be preadjusted before the final balancing. Also available as VAV damper in plenum box type MBBV.
Damper type C and E are with rotating blade dampers for respectively supply and extract. Typically used in applications that don’t require a high balancing pressure in the plenum box.
If the MB box is used without damper for supply air, it is necessary to install distribution filter PP. This distribution filter is standard in the MBC box.

  • Small dimensions and simplified installation
  • High capacity and low sound
  • Several damper options for all applications
  • Prepared for future system changes
Plenum Boxes

VBA is a plenum box for supply and exhaust air intended to achieve a stable flow to a rectangular grille or other types of face plates. VBA is equipped with an adjustment damper and pressure measurement device. The plenum box can be connected from the side, the top or the back. The adjustment damper is operated from the front of the box by means of a graduated handle with integrated locking mechanism. VBA is equipped with a telescopic connection for easy installation. The same face plate and telescope are used as for WB boxes.

  • Can be used for both supply and extract air
  • Easy-to-detach face plate for access to duct
  • Same box used for all front types
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