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FDS...EX
Installation, 5.4 - ON & OUT of the wall, EI60S
Using Promatect Boards
TIP:
The duct-wall cavity filling (F12) and its coating (F13) can be also replaced by plaster/mortar/concrete (F2).
Damper Preparation before Installation:
Attach all 4 parts of the IKOWS-FD accessory around the casing where the damper blade is situated, as shown in the
picture and apply a suitable fire resistive coating (F13) to the contact surfaces of the boards and the damper. Fasten
them together using the screws included in the IKOWS-FD package.
1. The supporting construction opening must be prepared as depicted. 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 driven by the nominal dimensions of the damper with added clearance. For rectangular dampers,
the opening will be with the dimensions of W1 and H1.
2. Insert the duct into the load-bearing structure along with the damper in such a way that the duct will stick out of
the wall to the needed distance. Press the insulation around the duct (F12) and cut its edges to even it with the
wall surface.
3. Paint the insulation surface in alignment with the wall with a suitable coat of paint (F13) up to 100 mm from the
duct to cover the insulation and part of the wall. Or use filling (F2) as per WET installation.
4. Fit 4 boards (F15) of 100 mm in width around the duct and secure them using suitable screws (F1) to the wall;
fasten an L-profile (F14) to the wall and the duct on the damper side; fasten 4 boards (F15) by joining them
together in corners with screws.
5. Insert mineral wool segments (37) around the duct perimeter between the boards (35) and the IKOWS-FD
accessory (A4). Cover the IKOWS-FD accessory (A4) and the boards (35) along the entire length with 20 mm thick
boards (36); apply fire resistive coating (F13) to all joints and fix the boards with screws (33).
6. Bind the damper in the blade location using a profile (34) at the top and bottom damper side, using threaded rods
(20) and nuts. The threaded rods are to be at a distance of a max. of 50 mm from the side insulation surface.
7. If needed, uncover and clean the damper after installation.
8. Make sure the fixing screws are not interfering with the blade movement and check the damper's functionality.
Duct rules
The rules for hanger placement and duct suspension depend on the damper's distance from the supporting
construction. The desired distance from the wall to the end of the duct connection with the damper divides the rules
into two groups:
• Distance from 35 mm to max. 1500 mm.
• Distance greater than 1500 mm.
Installation Distances
For installation 5.4 ON & OUT, the minimum distance from the wall or ceiling to the damper body is 40 mm. For multiple
crossings through a fire resistive wall the minimum distance between two damper bodies is 200 mm. The distance of
200 mm applies for distances between the damper and a nearby foreign object crossing the fire resistive wall.
Installation in a Wall thinner than tested
Installation in a thinner wall is allowed under the condition that an additional layer/layers of fire protective board are
fixed to the surface of the wall in order to achieve the same length of damper penetration seal as was tested. The
minimum width of added boards around the damper is 200 mm. In addition, the alternative thinner wall should be
classified in accordance with EN 13501-2:2007 + A1: 2009 for the fire resistance required for product application. For a
protruding wall, the additional layers must be fixed on the steel supporting construction of the wall.
Summary of Contents for FDS-3G EX Series
Page 1: ...FDS EX Atex Fire Damper ...
Page 8: ...8 70 FDS EX Product parts ...
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Page 43: ...43 70 FDS EX 5 1 On Out FDS EI90S EX W 1600 H 1000 EI 90 ve i o S a b ...
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Page 57: ...57 70 FDS EX 5 4 On Out FDS 3G EX 100 100 1200 800 EI 60 ve i o S a b ...
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Page 63: ...63 70 FDS EX 7 Multi FDS EI90S EX W 1600 H 1000 EI 90 ve i o S b ...
Page 70: ...Systemair DESIGN 2021 04 27 Handbook_FDS_EX_en GB ...