5.5.3
Dry mortarless installation with fire batt
□A
D
100
Y
Z
□A
D
50 50100
□A = ∅DN + 80...800
50 50100
□A = ∅DN + 80...800
40...400
40...400
①
②
②
③
࿆
࿇
Detail Y
②
②
Detail Z
②
②
①
②
②
③
࿇
࿆
100
Fig. 13: Installation with fire batt, suspended or upright
①
Extension piece
②
Fire protection coating
③
Coated mineral wool slabs, ≥ 140 kg/m³
Ⓐ
Installation side
Ⓑ
Operating side
Y Fire batt, flush with the floor (only for upright instal-
lation)
Z Fire batt, flush with the ceiling (only for suspended
installation)
Personnel:
Specialist personnel
Materials:
Fire batt systems
Ä
‘Acceptable fire batt systems’ on page 14
Requirements
Performance class EI 90 S
Solid ceiling slabs without open spaces, made of concrete or aerated concrete, gross density ≥ 600 kg/m³ and
D ≥ 150 mm
≥ 75 mm distance to load-bearing structural elements
200 mm minimum distance between two fire dampers
Duct connection with flexible connector (recommended)
1. An opening or a cut hole is required (☐A = ∅DN + 80...800 mm), with 400 mm maximum distance between the
fire damper and the wall opening
2.
Push the fire damper into the wall opening and fix it with threaded rods
Ä
Chapter 5.9.3.2 ‘Vertical duct’
on page 47.
Make sure that the distance from the connecting spigot on the operating side to the ceiling slab is 220 mm.
3. Extend the fire damper on the installation side with an extension piece (either attachment or supplied by
others).
Installation
Solid ceiling slabs > Dry mortarless installation with fire batt
Fire damper Type FKRS-EU24
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