8
60
120
variable **
variable **
60
120
variable **
**** Detail mounting and placementVRM-III page 12
* min. 110 - Concrete/ min. 125 - Aerated Concrete
60
120
*** Around the perimeter
Installation opening perimeter has to be
reinforced by standard drywall profiles.
Fire damper FDMB
Solid ceiling construction
Mortar or gypsum
Gypsum wall construction
Solid wall construction
Duct
Fire protection plate
of mineral wool
Mineral stone wool
Fire protection mastic
min. thickness 1 mm
Cement lime plate
min. thickness 15 mm
Stone wool resin bonded con-
taining toxic rubble as refriger-
ants, fire resistance EIS 90 min.
density 300 kg/m
th. 60 mm and 120 mm
Sheet metal a stiffener
U25x40x25
VRM-III****
** Dependent on the distance between
damper and fire separating