Handbook F C22022 04 21

20/34 | F-C2
Legend
Installation 1 - Wet:
F1 Plaster/mortar/concrete filling
1 Fire damper (F-C2)
2 Connected metal ductwork
A2 Flexible duct coupling FCR-C2 / return plastic or metal valve (e.g. BALANCE-E)
3 Concrete/masonry/cellular concrete wall or ceiling
4 Flexible (plasterboard) wall
4a 2 layers of plasterboard fireproof plate type F, EN 520
4b Vertical CW – profiles
4c Horizontal CW – profiles
4d Mineral wool; thickness/cubic density see picture.