instruction and operation manual ZHK NANO
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V04-18
Number of screws
The duct component are screwed as follows,
-
each at a distance of 120 mm from the corner
-
additional number of screws see
Table 3
and
Figure 81
.
Table 3:
Information on the screw distances
Length or width
Additional number of
screws
< 915
0
>= 915 <= 1220
2
>= 1372,5 <= 1830
3
>= 1982,5 <= 2592,5
4
> 2745 <= 3202,5
5
>= 3355 <= 3660
6
> 3812,5 <= 3965
7
Figure 81:
Information on the screw distance
6.3.1 Insulation of fresh air damper
Before connecting the duct section, the flange of the fresh air damper must be insulated in the
course of the fresh air duct insulation on site. This action is urgently required to prevent the for-
mation of condensation by heat transfer.
If fresh air dampers are not integrated in the AHU casing, then also the damper frame must be in-
sulated.
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