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5. Preparation for Installation and General Notes
5.1
Before installation, the damper should be inspected to ensure that it has not been damaged and is in good
condition following transportation and/or storage.
5.2
Check damper reference and size to site specification.
5.3
The damper is supplied with blade in the closed position and the Fusible Link held in place by orange transit
tape.
5.4
Remove the tape. Unscrew fusible link (FL) anti-clockwise a couple of turns.
5.5
Perform quick test to check damper opens and self closes keeping fingers away from moving blade/handle.
5.6
Where more than one duct penetrates a wall or floor, adjacent fire damper assemblies should be
separated by a structural element with a minimum width of 200mm (to comply with BS EN1366 -2
sec’n13.6). Exceptions to this are Ablative Batt penetration installations that also allows for overlapping
plates.
5.7
Install damper to site specification details and building codes of practice. (Refer to Tested Installation
Methods contained herein).
5.8
Ensure that the ductwork is to be independently and adequately supported.
5.9
Note: All Fire / Smoke Damper installations must be carried out to the satisfaction of the appropriate
Building Control Officer and/or specifying authority.
5.10
The installation method contained herein assumes the wall has been built prior to the damper opening
preparation. Optionally, the opening may already be present, in which case verify suitability, size and
position accordingly.
5.11
Determine required position of damper. Check sufficient space exists to fit the product. Ensure any
services (e.g. electrical/plumbing) within the structure or running close to the structure will not be affected.
If existing stud/track is avoidable, ensure the structure is sufficiently supported to conform to design
specification and that the opening is lined.
5.12
Where the structure is deeper than the casing length it may be necessary to connect ducting to the non -
access side of the damper through the opening, before final fitting of the damper. Once this is done, slide
the damper and ductwork assembly back through the opening until the Installation Plate butts up to the
structural surface ready to be fixed.
Tested Installation Methods
6. Dry wall Installation Procedure (refer to figure 2)
6.1
Finished aperture size is to be square and 20mm larger than the nominal damper diameter. This leaves
10mm nominal gap all round.
6.2
Preferably, prepare opening whilst building wall, or cut opening if wall already exists.
6.3
The hole must be ‘lined out’.
6.4
Cut size = damper size + (2 x nominal gap size) + (2 x wall board thickness). See Fig 2.
