Mandik FDMR Installation Instructions Manual page 30

During the installation process, the blade position must be "CLOSED".
During the installation process, the control mechanism must be protected against pollution and damage.
Fire dampers are suitable for installation in any position in vertical and horizontal passages of fire separating
structures.
The gap between the installed damper and structure must be completely filled with approved material.
The distance between the fire damper and structure (wall, ceiling) must be at least 75 mm. If two or more dampers
are to be installed in one fire separating structure, the distance between the adjacent dampers must be at least 200
mm.
The damper blade (in its closed position) must be inside of the fire separating structure. The fire damper may also
be installed outside the wall structure. The piping and damper part between the wall structure and damper blade
(marked with the BUILT-IN EDGE label on the damper body) must be protected by fire insulation.
Built in edge
Built in edge
"Wall edge sticker" indicates the recommended edge of installation of fire damper into the fire partition structure (wall).
The damper must be installed so that the entire damper blade - in the closed position - is located inside the fire separating structure
(wall) and at the same time the control mechanism and inspection openings are freely accessible.
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