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Instruction Manual ZHK
V07-21.0 43/140
Section connection points, screw connections between inside and outside, connection openings
and bushings, and all other openings, which penetrate or protrude from the casing must addition-
ally be sealed with SIKAFLEX (For example, heat exchanger connections, mounting screws, duct
connections, measuring openings, etc.), as shown on
Figure 44
and
Figure 45.
For roof AHUs as well as at device separations directly before or after a wet area (For example,
cooler, humidifier, spray humidifier), special actions must be done for sealing. For that purpose, the
supplied sealing agent Sikaflex (
Figure 44
) must be used. Further information will follow in
chap-
ter 5.1.5 (Special features for roof AHUs and device separations at wet areas)
.
Figure 44:
Sealing agent (Sikaflex)
Figure 45:
Applying the sealing agent
Connecting the AHU sections
The AHU sections must be aligned precisely and the front sides shall be exactly parallel to the
other. If necessary, some minor adjustments can be made by placing steel plates under the sec-
tion.
The AHU sections can be pulled together with belts/ slings, which attach on the base frame, as
shown in
Figure 46
and
Figure 47
.
Figure 46:
Pulling AHU sections together
Figure 47:
Pulling AHU sections together (detail)
Remove external panels at butt joints
For aligning and connecting the delivery sections, the external panels need to be removed, unless
heat exchanger fittings or similar attached components prevent this.