Installation opening ☐A [mm]
Installation type Nominal size Ænominal width
315 355 400 450 500 560 630 710 800
Mortar-based installation
1
☐A = Ænominal width + max. 450 mm
☐A1 = ☐A + (2 × trim panels)
Dry mortarless installation with installa-
tion kit TQ
1, 2, 3
435 475 520 570 620 680 750 830 920
Dry mortarless installation with fire
batt
4
☐A = Ænominal width + 80 – 1200 mm
☐A1 = ☐A + (2 × trim panels / 4 × trim panels)
1)
Optional trim panels
(max. 25 mm)
2)
Installation opening tolerance ± 2 mm
3)
Installation kit TQ is available only for FKR-EU with spigot
4)
Trim panels according to installation details required
Additional requirements: lightweight partition walls
and compartment walls with metal support structure
Lightweight partition wall or compartment wall,
Ä
on page 34
Erecting a wall and creating an installation opening
Erect the lightweight partition wall according to the
manufacturer's instructions and create an installa-
tion opening
– Variant 1: Provide the installation opening in the
metal support structure with suitable metal sec-
tions, then clad the wall.
– Variant 2: After cladding the wall, create a
square wall opening (clear installation opening
≤ 475 mm) between the regular studs and brace
it with a perimeter metal section. Screw metal
sections onto both sides over the cladding,
spaced approx. 100 mm apart.
– In case of mortar-based installation of fire
dampers from nominal size Æ450, install four
additional sections 7.1b at an angle of 45° in
order to reinforce the metal support structure.
Installation
Lightweight partition walls > General
Fire damper FKR-EU 53
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