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Operation and Maintenance Manual WKP-P
Version: 2.3
Date: 19.07.19
1.
Device installation instructions
Before installing the fire damper check it for damage caused during transport or storage.
Check if the damper is able to open and close (full open and close position). In the case
of WKP dampers open the damper with an actuator key. Full opening and closing shall be
smooth (not irregular). Do not pull the damper baffle in order to open/close the damper. Doing
so can cause permanent damage to the device, which is not covered by the warranty.
Before installation, verify the gap between the bottom blade and the inside part of the body
under the blade and between upper blade and the inside of the body over the blade. The gap
size can not be less than 4 mm. 4 mm feeler gauge is supplied with the order.
Before installation secure the damper with film or other covering material to protect it
against dirt and damage to the damper elements.
To maintain EIS120, EIS90 declared resistance, insulation and smoke leakage, the
dampers should be mounted in walls, which were tested and rated as EI120 or EI90.
It is acceptable to use WKP-P dampers in walls with other fire resistance rating, but in
this case it should be kept in mind that EI fire resistance rating of the whole WKP-P damper
installation is equal to the fire resistance rating of the lowest rated element of the system.
The WKP-P fire dampers may be installed in vertical space dividers with both horizontal
and vertical axis of rotation of blades. In vertical mounting the recommended position of the
actuator is above the damper.
1.1
Installation Technology – Rigid Wall Structure
1.
Make a hole in the wall – 246 mm greater than the dimension B and 120 greater than
dimension H, i.e. B+246 and H+120.
2.
Insert the closed damper into the mounting hole and support it or suspend in such a way
that the axis of the damper baffle coincides with the wall axis, and to maintain the
coaxiality of the damper and the mounting hole.
3.
Once the damper is set as described above, fill in the slot between the damper and the
wall fully with mortar, cement mortar, lime-cement mortar or concrete.
4.
When the mortar is dry (after about 48 hours), remove the supports or suspension used
for mounting the damper, check if the damper operates properly and leave it in the open
position.
