Title: +038=365.009-SS002._03-mcr WIPT Stengespjeld Mercor - Installasjonsmanual.pdf
by the wall. In order to ensure fire-resistance of a fire damper, the depth to which it can be built in should never be exceeded, i.e. the rotation axis of the fire damper’s blades cannot be outside the wall (off the wall surface). In the case of space dividing elements with a thickness comparable to that of a fire damper, it is recommended that the fire damper be installed in such a manner that its axis divides the thickness of the space dividing element precisely in half. The built-in fire damper has to be coaxially connected to a ventilation duct. When installing a fire damper, be sure that you do not damage its body, and in particular do not subject it to any stress. A fire damper cannot function as a “structural element” of a duct or ventilation system in which it has been installed. It is unacceptable to drill through the fire damper’s housing, screw in bolts/screws and other elements that pierce through the housing towards the interior of the fire damper. Having connected the fire damper to a