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It is recommended to perform a functional test before Installation to
exclude possible damage during transport and another test immedi-
ately after installation to exclude accidental damage to the product
and interference with mounting components.
Positioning brackets before xing
1. Positioning brackets
Blade rotation axis positioning
The re damper can be installed with the blade axis positioned verti-
cally or horizontally or tilted at any angle.
Installation of exible connectors in order to balance out the
ventilation ducts expansion
CAUTION: Refer anyway to law and national standardization.
Flexible connectors compensate any duct thermal expansion and
wall bending in case of re.
Flexible connectors are used to limit re damper stresses due to ex-
ternal forces in case of re and to preserve re resistance class.
In general it is always appropriate the use of exible connectors for
the followings installations:
– light walls;
– Plasterboard and rock wool or Fire Batt (Weichschott) sealing;
– Applique xing system.
Flexible connector must be normal ammability and in case of re
the grounding bonding should disconnet to guarantee the com-
plete separation between re damper and connected air duct.
When exible connectors made of conductive material (e.g. alumi-
num) are used, no additional grounding bonding is required.
Despite exible connector installation, the re damper must be in-
stalled in the construction support so that its weight does not aect
damper’s installation position both during normal operation and in
case of re.
It is recommended not to compress exible 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 exible connector does not interfer with opening
/ closing movement of the blade.
Transfer Application (application not connected to air ducts on
one or both sides)
Following tests performed as per EN 1366-2, section 6.3.6 Standard,
it is possible to install the re damper free from air duct from one or
both sides.
• Attention: re resistance classication for transfer application is
conform to section Fire resistance classication according to EN
13501-3-2009 limited to EI 120S if the ducted classication is high-
er.
• End cap with mesh shall be mounted on the side not connected
to air duct.
• End cap with mesh is made from galvanized steel sheet.
• End cap with mesh is supplied loose from the re damper.
Components (Transfer Application)
1. End cap with mesh (to x to re
damper with steel screws) 2. Fire damper
Technical data (Transfer Application)
1. Mechanism side
2. Mechanism opposite side
3. End cap with mesh
L1 End cap length mechanism side
L2 End cap length mechanism
opposite side
Ø Fire damper nominal diameter
Length of end cap with mesh depending on re damper di-
ameter Ø.
Ø L1 L2
100 40 40
125 40 40
140 40 40
150 40 40
160 40 40
180 40 40
200 40 60
224 40 40
250 60 80
280 60 100
300 60 100
315 60 120
Ø Fire damper nominal diameter
L1 End cap length mechanism side
L2 End cap length mechanism opposite side
Minimum distances
It is recommended to keep enough space for using the control
mechanism or for maintenance.
In accordance with Articles 7 and 13 of EN 1366-2 respect the mini-
mum distances indicated below.
