Lindab WH25 - Installation within vertical light wall (Shaft wall)

INSTALLATION
WH25
LINDAB SAFE
34/50
 Installation within vertical light wall (Shaft wall)
Refer to the section Construction supports characteris-
tics p.17 for further information.
Comply with the minimum distances indicated on section
Minimum distances p.15.
 Wall opening
A opening must be provided in the wall as indicated in the
table and in the drawing
 Damper positioning
Position the damper in the opening so that the side of the
closing mechanism extends as indicated in the table and
in the drawing.
 Filling
Fill the space between the wall and the damper as indicat-
ed in the table and in the drawing.
Cover the sealing by applying on both faces of the wall a
layer of plasterboard, to a total minimum thickness of 20
mm per side, to make a frame with a side 150 mm greater
than the nominal diameter of the damper.
Fire resistance classi-
cation
“D” hole size
[mm]
Wall minimum thickness
“S”
[mm]
Sealing
EI 90 S Installation within vertical light wall (Shaft wall)
EI 90 S
(300 Pa)
From (Ø + 50) x (Ø + 50)
To (Ø + 70) x (Ø + 70)
(square hole)
90
Mortar or plaster putty with
inll plasterboard (thickness
20 mm)
1. Plasterboard thickness 20 mm
2. Plasterboard arch inll, thickness 20 mm
3. Mortar M-10, EN998-2 or plaster putty
4. Metal frame
5. Self-drilling screw Ø 3,5 X 45 mm
D Hole size: see table above
Lp Overlap length between re damper and duct: see section
Dimension p.11
WH25
LINDAB SAFE
34/50