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Fire resistance classification
“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
infill 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
D Hole size: see table above
S Wall minimum thickness: see table above
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. Rock wool, 100 kg/m³, or mortar M-10, EN998-2 or plaster putty
5. Self-drilling screw Ø 5 X 60 mm
6. Self-drilling screw Ø 5 X 120 mm
7. Washer 40 x 40 mm
8. M10 threaded rod
9. C-shaped steel profile 10x41x41x41x10 mm
10. M10 nut
11. Self-drilling screw Ø 4,2 X 13 mm
12. Self-drilling screw Ø 3,5 X 45 mm
13. Plasterboard infill panel, thickness 12,5 mm, for rock wool sealing
14. Rock wool density up to 80 kg/m³ (optional)
15. Metal frame
Installations remote from the vertical wall with Fire Batt (Weichschott) sealing
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
Connect fire damper to the galvanized steel duct as indicated 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 fire 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 fire damper has to be fixed and suspended from the ceiling as
indicated in the drawing.
The hanging structure is composed by:
– 2 C-shaped steel profiles 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 damper and the wall using Fire Batt
(Weichschott) sealing made from two rock wool panels with mini-
mum thickness of 50 mm and minimum density of 140 kg/m³.
