mcr DOR smoke control dampers
„MERCOR” S.A.
– The company reserves the right to modify and change the document.. Version: mcr DOR 22.05.04.1
8/16
stresses. The damper cannot be a support element of the duct or a ventilation installation on which it is
installed. It is unacceptable to drill the flap housing in any places, screwed screws, screws and other
elements passing through the housing (these elements can block the operation of the partition and damage
the release and control mechanism). Places for drilling the housing for anchoring for the fastening structure
are marked (holes in the metal housing). Before anchoring, drill the body with a drill. After connecting the
ventilation duct, check the correct operation of the damper again. When installing mcr DOR dampers, do
not expose swelling seals installed in the housing to high temperatures. The detachment of the seals
prevents the damper from closing. After completing the installation, clean the damper thoroughly and make
sure that the remains of debris did not remain in it that could affect the correct operation of the damper.
In order to protect the damper partition against mechanical damage when opening, in the event of a
collision of the partition with the walls of the shaft, the contact surfaces should be secured with an additional
bumper.
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1. Damper mcr DOR BxH
2. Masking grille MWD (option)
3. A strip of fire-proof board along the
entire length of the BxH side*
4. Shaft wall
5. Vertical fire ventilation shaft
6. Wall of a shaft compliant with
EN1366-8 or EN1366-9*
Damper installation in shaft walls >110 mm.
