21
First attach the upper cross arm:
1. Stick the provided self-adhesive sealing plates to all wall supports.
2. Stick the drilling template provided for the left and right wall supports
on the wall of the duct at the correct location (see installation drawing)
and drill the ø3.3 mm holes
(6 holes per wall support)
.
Important!
Align the drilling templates at right angles to the roof of the
duct and at the same distance from the nozzle screen.
3. Attach both wall supports to the wall of the duct, using the self-tapping
screws provided
(minimum 6 screws per wall support)
.
Important!
Before tightening the screws, check that the wall supports
are at right angles to the roof of the duct and that the dimension 158
mm between the surface of the support and the duct roof is correct.
4. Fit the U-section member on the wall supports and secure it to the
supports with the (M6x55) cylinder head screws, washers and locking
rings provided.
3
4
158 mm
6x
2
1
ø3.3 mm
104.5 mm
