INSTALLATIoN
WH45P
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/42
rev 20-10
3.13.
Installations within vertical wall with Fire Batt (Weichschott) sealing
Refer to the section Construction supports characteristi-
cs p. 16 for further information.
Comply with the minimum distances indicated on section
Minimum distances p. 14.
before and after installation please perform a functional
test. Refer to section Mechanism type for further informa-
tion p. 7.
3.13.1.
Wall opening
A opening must be provided in the wall as indicated in the
table and in the drawing
3.13.2.
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.
Close the blade before installing the fire damper.
3.13.3.
Filling
Fill the space between the damper and the wall using
Fire batt (Weichschott) sealing made from two rock wool
panels with minimum thickness of 50 mm and minimum
density of 140 kg/m³.
The panels must be covered on both faces of the wall with
endothermic varnish type PRoMASToP E PASTE or HILTI
CFS-CT (minimum thickness of 1 mm) and with an internal
perimeter sealant type PRoMASToP E PASTE or HILTI CFS-S
ACR (minimum thickness of 1 mm).
Fire resistance classi-
fication
“D” hole size
[mm]
Damper protrusion
from the wall “E”
[mm]
Wall minimum thick-
ness “S”
[mm]
Sealing
Rigid w
all EI 120 S Installation within rigid vertical wall with Fire Batt (Weichschott) sealing
Wall minimum density 500 kg/m³
EI 120 S
(300 Pa)
(Ø + 800 max) x (Ø +
800 max)
(rectangular hole)
215 + Lp
100
Rock wool 140 kg/m³
and endothermic varnish
sealing
Fle
xible w
all
EI 120 S Installation within vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing
Wall rock wool density up to 100
kg/m³ (optional)
EI 120 S
(300 Pa)
(Ø + 800 max) x (Ø +
800 max)
(rectangular hole)
215 + Lp
100
Rock wool 140 kg/m³
and endothermic varnish
sealing
EI 120 S Installation within vertical light wall (gypsum blocks wall) with Fire Batt (Weichschott) sealing
Wall minimum density 995 kg/m³
EI 120 S
(300 Pa)
(Ø + 800 max) x (Ø +
800 max)
(rectangular hole)
215 + Lp
100
Rock wool 140 kg/m³
and endothermic varnish
sealing
1.
Rock wool panel 50 mm thick with 140 kg/m³ density.
2.
PROMASTOP E PASTE or HILTI CFS-S ACR type sealant
3.
PROMASTOP E PASTE or HILTI CFS-CT endothermic varnish
4.
Wall indicated in the table
D
Hole size: see table above
E
Damper protrusion from the wall: see table above
Lp
Overlap length between fire damper and duct: see section
Dimension p. 9
WH45P
24
We reserve the right to make changes without prior notice