27Installation
2. Mount the cross members:
Note: this step must be carried out only on systems with two nozzle grids in the width.
• For air ducts/AHU's with a width >2000 mm the cross members are supplied in sections and
must be bolted together on site. Proceed as follows: Undo the screw connections on the cross
members overlapping. Arrange cross member sections and x them together using the screws
M6 x 16 mm and nuts removed right before. Exactly align cross member sections and fasten the
screw connections. Then, x the reinforcement plates at the overlapping to the cross members
as shown below using four screws M6 x 16 mm and nuts, align plates and fasten the screw con-
nections.
• Slightly loosen the four screw connections, with which the mounting plates are attached on both
sides to the cross members, so the mounting plates can be moved.
• From the front (view in air ow direction) hang up the cross members at the appropriate vertical
position to the lateral supports of the nozzle system, then push the cross members downwards
until they come to a stop. Now, fasten all screw connections of the mounting plates.
Abb. 16: Mount the cross members
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