DRS Installation
15
➤ Tighten the screws so that the joint can clamp down on the sleeve.
➤ Continue tightening the screws until there is no gap between the sleeve and the
top and bottom roof flange.
➤ Ensure the joint has not overly deformed and caused gaps between the bottom
roof flange and ceiling. If this occurs, increase the total length of the sleeves by
5 mm, or unscrew by half a turn.
If there is no deformation (sleeves too long) then there will be insufficient clamping
of the joint and the sleeves should be shortened by 5 mm by choosing a different
combination of 10 mm and 5 mm long sleeves.
➤ Ensure the filter is inserted into the filter holder, and the filter holder inserted into
the DRS.
➤ Close the ceiling cover:
✓ The installation is complete.
DRS-IOM.book Seite 15 Freitag, 9. August 2019 9:48 09
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