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Operation and Maintenance Manual WKP-P
Version: 2.3
Date: 19.07.19
1.2
Installation Technology – Light wall structures
1.
Make a hole in the wall – 310 mm greater than the dimension B and 180 greater than
dimension H, i.e. B+310 and H+180.
2.
Make a frame of two layers of GKF boards with 15 mm thick and a width corresponding
to the mounting hole screwed tightly, bearing in mind the exact sealing at their joints by
using Hilti Firestop Coating CP 673, Promastop-Coating, Promaseal-Mastic or Soudal
Firesilicone B1 FR.
3.
Put the closed damper into mounting hole and support or suspend it so that the damper
blade axis coincides roughly with the wall axis and that the alignment of the damper and
mounting hole is maintained.
4.
After setting the flap as described, the gap between the flap and the wall should be
carefully filled with non-flammable high density mineral wool, 100 kg/m
3
or more.
5.
Seal the place of filling with mineral wool by using the sealing mass given in point 2.
6.
Mount the collar of GKF boards on both sides with a thickness of 15 mm and a width of
150 mm, with the screws.
7.
After mounting a collar, remove supports or hangings that were used to mounting the
flap, check the correct functioning of a flap, and then leave a flap in the open position.
Fig. 4: Installation technology of WKP-O-O fire damper in light wall structure
