4.
If necessary, adjust the damper blade posi-
tion with the cords.
Volume flow rate calculation
Fig. 18: Volume flow rate calculation for air density
1.2 kg/m³
Fig. 19: Volume flow rate calculation for other air
densities
The K values are given in the technical leaflet for
the plenum box.
Maintenance and cleaning
Please note:
The cleaning intervals given in the VDI 6022
standard apply.
Clean surfaces with a damp cloth.
Use only common household cleaners, do not
use any aggressive cleaning agents.
Do not use cleaning agents that contain
chlorine.
Do not use equipment for removing stubborn
contamination, e.g. scrubbing sponges or
scouring cream, as it may damage the sur-
faces.
Replace contaminated equalising elements
(fleece). For hygiene reasons you should not
use a vacuum cleaner or wash the interior of
the device.
Initial commissioning, maintenance and cleaning
Air terminal devices Ceiling diffusers
12
