mcr WIP PRO
multi-blade fire damper
„
MERCOR” S.A. –
All rights reserved to modifications without prior notice
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Carefully fill the gap between the damper casing and the wall with a proper mortar formula that ensures proper wall
and damper fire resistance, and do not let the mortar get into the damper main components (i.e. the trigger control
gear, the isolation partition, gaskets and stops). To do this, before installation, the fire damper should be covered
with plastic film or other suitable material and remain so until the embedding and finishing is done
When installing the fire damper in a panel wall, fill the space between the damper casing and the wall with mineral
wool certified with A1 grade (non-combustible); the mineral wool density and thickness must ensure fire resistance,
at the same level or higher than the fire resistance of the wall in which the fire damper is installed. The filled space
additionally should be sealed with a proper mortar or putty that has the fire resistance required for the wall.
During fire damper installation in a floor slab, make a frame from Z-bars and set the fire damper in it. Carefully fill the
gap between the damper casing and the floor slab with a proper and certified mortar compound that ensures proper
wall and damper fire resistance, and do not let the mortar get into the damper actuation components (i.e. the trigger
control gear, the damper blade, gaskets and stops). To do this, the fire damper must be covered with plastic film or
other suitable material and remain so until the embedding and finishing is done.
In order to ensure the fire resistance of the fire separation element, the damper blades rotation axis cannot be situated
outside the wall face.
If the fire partition (wall) thickness is similar to the length of fire damper, it is recommended to install the fire damper
in way, where axis of the damper is aligned with the building partition cross section centre. The embedded fire damper
must be coaxially connected to the ventilation duct. Protect the fire damper casing from damage, and specifically
from straining the casing during the installation process. The fire damper cannot bear the load of the ventilation duct
or the ventilation system in which it is installed. Using drills, screws, bolts or other elements that pierce through the
casing to the inside of the damper is prohibited. Once connected to the ventilation ducts, re-verify the fire damper
performance. During the installation of the mcr WIP PRO fire damper, keep in mind, that the thermal trigger (a fusible
link) must not be damaged or exposed to high temperature (from fire, and welding/soldering equipment), which might
release it (it is a single use element and is not subjected to warranty replacement). Do not expose the intumescent
gaskets installed in the fire damper casing to high temperature. It is impossible to close the damper, when gaskets
are swollen. After installation, carefully clean the fire damper and make sure that there is no debris which could
obstruct proper performance of the device.
