12
| Circular fire damper user manual 03/2020
13
|
Circular fi
re damper user manual 03/2020
5.2.7 Installation in flexible wall (Weichschott)
Installation material: Fire damper FDC, Mineral wool >140kg/m³
, Fire protection coating, (HILTI and
PROMAT system).
Recommended wall opening for
fire damper installation is Ø +
400mm, but openings from Ø +
80…600 mm can also be used
Insert fire damper into wall
Damper blade must be closed
during installation!
Space between casing and wall
close with two layers of mineral
wool (density 140 kg/m³ or more, 50
mm thick, coated on one side)
Connections of mineral wool seal
with intumescent fire resistant
sealant (e.g. Promastop-I or Hilti CFS-
CT). Mineral wool and damper casing
must be coated with
2 mm thick fire
protection coating
5.2.8 Installation remote from flexible/rigid wall
The wall is composed of 2x2 GFK plates, 12.5 mm thick, installed on a 48 mm wide steel construction.
The interior of the wall is filled with mineral wool of 100 kg/m
³
density.
700
Øn+80
Ø
n+80
Arrangement of steel profiles
Place the damper in an opening
according to table (on pg. 6) (wall
cover with gypsium plates)
Place ventilation duct trough wall
(thickness of threaded rod for
suspension should be M12 or more)
Install fire damper and secure it with
self-tapping screws 4,3x10 to duct
(every 300mm)
Fill space between duct and wall with
mineral wool (Isover U protect, min.
80mm thickness). Additionally paint wool
with Isover BSF in thickness of 1mm
Repeat the same procedure on
the other side. Place the wool on
ventilation duct in lenght of 80mm
Close installation with L profiles
30x30x3mm. Additionally fix profiles to
duct with self-tapping screws, and screw
them to wall with 4,5x50 screws with
200mm distance between them
Place steel protection on place where
insulation on damper ends (80x80mm,
1mm thick metal sheet cover)
On connection wool-wall apply
glue Isover BSK in thickness of 2mm
