Lindab WH25 - Installation remote from vertical light wall (plasterboard)

INSTALLATION
WH25
LINDAB SAFE
28/50
 Installation remote from the vertical light wall (plasterboard)
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
Connect re damper to the galvanized steel duct as indi-
cated in the drawing, with 4 screws Ø4.2x13
Install the damper with the mechanism facing away from
the wall as indicated in the drawing.
Between re damper and wall the maximum distance is
1000 mm.
The maximum length of the part of duct connected to the
damper is 2100 mm
The re damper has to be xed and suspended from the
ceiling as indicated in the drawing.
The hanging structure is composed by:
– 2 C-shaped steel proles 10x41x41x41x10 mm
– 2 M10 threaded rods
– 4 M10 nuts
Position the threaded rods 1000 mm from the wall and at a
distance of 100 mm from the side of the damper.
 Filling
Fill the space between the wall and the re damper using
rock wool which has density of 100 kg/m³.
Cover the duct over its entire length and re damper with
2 rock wool panels 50 mm thick and with a density of 140
kg/m³.
Fix rst layer of rock wool panel to the duct with screws Ø5
X 60 mm and washers 40 X 40 mm, and the second one
with screws Ø5 X 120 mm and washers 40 X 40 mm.
Fill the space between rock wool panels and the the
damper with one rock wool panel with minimum thickness
of 50 mm and minimum density of 140 kg/m³.
The panels must be covered externally with endothermic
varnish type PROSTOP E PASTE or HILTI CFS-CT (minimum
thickness of 1 mm) and with an internal perimeter sealant
type PROMOSTOP E PASTE or HILTI CFS-S ACR (minimum
thickness of 1 mm).
Fire resistance classi-
cation
“D” hole size
[mm]
Wall minimum thickness
“S”
[mm]
Sealing
Installation remote from the vertical light wall (plasterboard)
Wall rock wool density up to 100 kg/m³ (optional)
EI 120 S
(300 Pa)
EI 90 S
(500 Pa)
From (Ø + 50) x (Ø + 50)
To (Ø + 70) x (Ø + 70)
(square hole)
100
Rock wool 100 kg/m³ with
inll plasterboard (thickness
12.5 mm)
Wall rock wool density up to 100 kg/m³ (optional)
EI 120 S
(300 Pa)
EI 90 S
(500 Pa)
From (Ø + 50) x (Ø + 50)
to (Ø + 440) x (Ø + 440)
(square hole)
100 Mortar or plaster putty
WH25
LINDAB SAFE
28/50