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Displacement unit with adjustable distribution pattern

DRI is a complete, rectangular displacement unit for wall or ceiling installation, surface or recessed mounted. It can provide a large air flow at a low velocity in the occupied zone. The spread pattern is easily adjustable due to the adjustable air deflectors.

  • Adjustable spread pattern and affected area zone
  • Suitable for all types of rooms
  • Cleanable
  • Measurement tappings
  • Very easy to recess in a wall
  • Concealed fixing
  • Standard colour White RAL 9003
    • 5 alternative standard colours
    • Other colours upon request

Technical specifications


DRI   l/s  
Size 25 dB(A) 30 dB(A) 35 dB(A)
200 220 265 315
250 340 400 480
315 515 610 720
400 790 930 1100
200-600 610 725 860
250-800 840 980 1150

Sound level is valid at 150 m2 equivalent sound absorption area at distance of
2 m from terminal. Values in parenthesis are valid at 10 m2 equivalent sound absorption area. All values are valid on straight duct section without disturbance.

*) Lp10A = Sound pressure incl. A-filter with 16 dB room attenuation and 150
m2 room absorption area.

Download document

You can find more documents on our document search page. Looking for older versions, you can find them in the document archive

Document Article Document type Size Format Download
Building product declaration DRIf Quality 48.85kB pdf
Low velocity displacement unit with VARIZON DRIf ProductSheet 2.6MB pdf
Installation, commissioning, maintenance DRIf Instruction 1.07MB pdf
Low velocity displacement unit with VARIZON (U.S. version) DRIf ProductSheet 3.23MB pdf
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Product description - Air diffusers & dampers Air diffusers & dampers Brochure 684.3kB pdf