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F-B90
Installation 1 – Wet
Using Plaster/Mortar/Concrete Filling
1. Opening surfaces must be even and cleaned off. The flexible wall opening must be reinforced as per the standards for plasterboard
walls. The opening dimensions are based on the nominal dimensions of the damper with added clearance. The opening will have the
dimensions of W1 and H1.
2. Insert the damper as per the “Handling of F-B90” section into the middle of the opening so that the damper blade is in the wall. For
damper widths greater than 600 mm, it is recommended to use a duct support inside the damper during installation to avoid any
damage caused to the damper housing by the weight of the filling.
3. Fill in the area between the wall and the damper with gypsum plaster or mortar or concrete filling (3) while being careful not to
foul the damper’s functional parts, which might keep it from working properly. The best way is to cover the functional parts during
installation. To prevent seepage of the filling material, use of boards is recommended.
First, let the plaster or mortar or concrete filling harden and then perform the next steps.
4. After the filling hardens, remove the duct support from inside the damper.
5. If needed, uncover and clean the damper after installation.
6. Make sure the damper works properly.
Installation Distances
According to the EN 1366-2 standard, the minimum distance from the wall or ceiling to the damper body is 75 mm. For multiple
crossings through a fire-resistant wall, the minimum distance between two damper bodies is 200 mm. This applies for distances
between the damper body and any nearby foreign object crossing the fire-resistant wall. Damper clearances vary according to the
type of mechanism and rotation.
Notes:ve - Vertical (wall)
Product typeA1) - Installation with Ducts or Duct with GrilleA2) - Installation without Duct, only with Grille
Summary of Contents for F-B90
Page 1: ...F B90 Multiblade Fire damper ...
Page 14: ...14 69 F B90 Dimensions Free area ...
Page 15: ...15 69 F B90 Dimensions ...
Page 16: ...16 69 F B90 Weights ...
Page 17: ...17 69 F B90 ...
Page 18: ...18 69 F B90 ...
Page 23: ...23 69 F B90 Types 00 01 02 installed in the wall Max EI90S ...
Page 24: ...24 69 F B90 ...
Page 28: ...28 69 F B90 Types 11 22 installed in the wall Max EI90S EI120 ...
Page 29: ...29 69 F B90 ...
Page 32: ...32 69 F B90 Types 00 01 02 installed in the wall Max EI90S ...
Page 33: ...33 69 F B90 ...
Page 37: ...37 69 F B90 Types 11 22 installed in the wall Max EI90S EI120 ...
Page 38: ...38 69 F B90 ...
Page 41: ...41 69 F B90 Types 00 01 02 installed in the wall Max EI90S ...
Page 44: ...44 69 F B90 Types 11 22 installed in the wall Max EI90S EI120 ...
Page 47: ...47 69 F B90 ...
Page 48: ...48 69 F B90 ...
Page 49: ...49 69 F B90 ...
Page 61: ...61 69 F B90 Operation manual ...
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Page 69: ...Systemair DESIGN 2020 10 07 HandBook_F_B90_en GB 1D2E1FF0 E010 11EA E8DD 8BBB7258CB9B ...