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to carry out the following control activities at intervals of no more
than 12 months:
• Check the servomotor electrical wiring for damage (where appli-
cable);
• Check end-switch wiring for damage (where applicable);
• Check damper cleanliness and clean where necessary;
• Check the condition of blades and seals, rectify and report where
necessary;
• Check the correct opening and closing of the fire damper by man-
ual operation according to the instructions in the technical manual
of the fire damper;
• Check the opening and closing operation of the damper con-
trolled by the fire alarm system (if present);
• Check the operation of the end switches in open and closed state,
adjust and report if necessary (if it is present);
• Confirm that the damper fulfils its function as part of the control
system (where necessary);
• Check that the damper is left in its normal operating position,
which usually corresponds to the open position.
Repair
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For safety reasons, repair activities involving fire-fighting compo-
nents must be carried out only by qualified personnel.
Only original spare parts supplied by the fire damper manufacturer
must be used.
A functional test must be performed after each repair.
At the end of the inspection, cleaning or repair operations, check that
the fire damper is in the normal operating position.
Keep records of all inspections, repair activities, any problems en-
countered and their resolution.
This practice, even when not mandatory, is very useful in practice.
Disposal
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Disposal in case of destruction must be carried out in accordance
with national legislation. For electrical and electronic parts also refer
to EU Directive 2011/65.
INSTALLATION
The sizes shown are in mm.
It is recommended to perform a functional test before Installation to
exclude possible damage during transport.
The fire dampers FBC must be accessible for maintenance and in-
spections.
Blade rotation axis positioning
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„
The fire damper can be installed with the blade axis positioned verti-
cally or horizontally or tilted at any angle.
Installation of flexible connectors in order to balance out the
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ventilation ducts expansion
ATTENTION: the following indications must be considered
binding only if legislation or local regulation where the fire
dampers are installed require the use of flexible connectors.
Flexible connectors compensate any duct thermal expansion and
wall bending in case of fire.
Flexible connectors are used to limit fire damper stresses due to ex-
ternal forces in case of fire and to preserve fire resistance class.
In general it is always appropriate the use of flexible connectors for
the followings installations:
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– light walls;
– Plasterboard and rock wool or Fire Batt (Weichschott) sealing;
– Applique fixing system.
Flexible connector must be normal flammability and in case of fire
the grounding bonding should disconnet to guarantee the com-
plete separation between fire damper and connected air duct.
When flexible connectors made of conductive material (e.g. alumi-
num) are used, no additional grounding bonding is required.
Despite flexible connector installation, the fire damper must be in-
stalled in the construction support so that its weight does not affect
damper's installation position both during normal operation and in
case of fire.
It is recommended not to compress flexible connectors in the in-
stallation phase.
Flexible connector must be at least 100mm long and in order that
possible duct thermal expansions are balanced.
Take care that the flexible connector does not interfere with opening
/ closing movement of the blade.
Refer to the section Technical data for blade exposition values.
Minimum distances
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In accordance with Articles 7 and 13 of EN 1366-2 respect the mini-
mum distances indicated below.
Minimum distances
1.
2.
Construction supports characteristics
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„
The European standard for fire dampers foresees a precise correlation
between the wall/floor characteristics and the fire resistance class
obtained, as well as the correlation between wall/floor used for the
test and wall/floor used for the actual installation.
The test results obtained on a type of wall/floor are valid also for
walls/floor of the same type but with greater thickness and/or densi-
ty than those used in the test.
For plasterboard walls, the test results are also valid for walls with a
greater number of plasterboard layers on each side.
As a result, the indicated thickness and density characteristics are to
be considered as minimum values.
The wall/floor in which the fire dampers are installed must be fire
class certified according to the standards foreseen for the structure.
Rigid walls
†
„
Can be made with aerated concrete blocks, poured concrete, con-
crete panels, perforated cell elements in concrete or brick in accord-
ance with the following characteristics:
• minimum thickness 100 mm;
• minimum density 550 kg/m³.
For walls built with perforated elements, it is also recommended that
the area of the opening be made from full elements (for example
aerated concrete blocks) to guarantee the correct adhesion of the
mortar.
Light plasterboard vertical walls
†
„
During testing, light plasterboard walls have been used with the fol-
lowing characteristics:
• U-shaped horizontal metal frame (50 mm) and C-shaped vertical
frame (49 mm) made from 0,6 mm thick sheet metal;
• vertical profiles placed with a maximum spacing of 1000 mm;
• Filling made of rock wool;
We reserve the right to make changes without prior notice
rev 24-01
Vertical lateral wall
Floor
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