22
/23
Fill the space between rock wool panels and the the damper with
one rock wool panel with minimum thickness of 50 mm and mini-
mum 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 classification
“D” hole size
[mm]
Wall minimum thickness “S”
[mm]
Sealing
EI 90 S Installation remote from the floor
Floor minimum density 650 kg/m³
EI 90 S
(500 Pa)
From Ø + 25
to Ø + 35
(circular hole)
100
Mortar or plaster putty
sealing
EI 120 S Installation remote from the floor
Floor minimum density 650 kg/m³
EI 120 S
(300 Pa)
From Ø + 25
to Ø + 35
(circular hole)
150
Mortar or plaster putty
sealing
The fire damper must be positioned just above the floor as indicated in the
drawing.
1. Floor
2. Duct
3. Fire damper
D Hole size: see table above
S Wall minimum thickness: see table above
1. Self-drilling screw Ø 4,2 X 13 mm
2. PROMASTOP E PASTE or HILTI CFS-S ACR type sealant
3. PROMASTOP E PASTE or HILTI CFS-CT endothermic varnish
4. Screws M8 x 40 mm
5. Washers 15 x 9 mm
6. Angle connector 105 X 105 X 90 mm
7. Washers 15 x 5 mm
8. Mortar M-10, EN998-2 or plaster putty
9. Washer 40 x 40 mm
10. Self-drilling screw Ø 5 X 60 mm
11. Self-drilling screw Ø 5 X 120 mm
12. Rock wool panel 50 mm thick with 140 kg/m³ density.
13. Flush anchors M8 x 40 mm
14. Floor
Installation within vertical light wall (Shaft wall)
Refer to the section Construction supports characteristics for further
information.
Comply with the minimum distances indicated on section Minimum
distances .
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 indicated 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.
