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5
Assembly
If climbing on the AHU is unavoidable during assembly, for example, for connect-
ing the roof plates, it must be ensured by appropriate measures. For example, us-
ing boards, that the weight is distributed evenly, in order to avoid bending of the
roof panels.
5.1
Assembly of casing
5.1.1
Actions before the assembly of casing
If several AHU sections must be connected, then the procedure after the pre-positioning of the sec-
tions is as follows:
Remove crane lugs
If lifting lugs are mounted, remove them. To set the AHU in the exact assembling position, it can be
moved by a rod (leverage). Use the rod only on the base frame profile.
Applying sealing material
The supplied self-adhesive sealing strip (Figure 15) must be applied at all section connections be-
fore assembling, see Figure 16.
Following section connection points must be sealed:
The flange areas between sections.
-
Between duct and casing connection openings.
-
Between connection flange and dampers, flexible connection, weather protection grid, sand trap
-
louvre, intake hood ...
Figure 15: Sealing strip
For roof AHUs as well as at device separations directly before or after a wet area (e.g. cooler), spe-
cial actions must be done for sealing. For that purpose, the supplied sealing agent Sikaflex (Figure
17) must be used. Further information will follow in chapter 5.1.4 (Special features for roof AHUs
and device separations at wet areas).
V07-19.0
Figure 16: Applying the sealing strip
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