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6.7 Air duct system
6.7.1 Air duct connections
The connecting stubs for the air duct system are located on the
top of the device in a vertical direction. The direction of air flow
can be changed by modification (supply air connection on left
or right), siehe Kap. 5 auf S. 8.
4
1
3
Fig. 6.13:Right-hand unit air duct connections
1
Outside air (SAI)
2
Supply air (SAO)
3
Exhaust air (EAI)
4
Extract air (EAO)
Fig. 6.15:Air duct system (schematic, shown for "right-hand unit/supply air
connection on right")
1
Outside air (SAI)
2
Supply air (SAO)
3
Exhaust air (EAI)
4
Extract air (EAO)
5
Outside / extract air grille/roof cover
6
Outside / extract air sound damper (flexible)
7
Air distributor
8
Supply air / exhaust air sound damper (flexible)
9
Air distribution pipe
10 Ventilation valves
16
2
DOK4SVxxDEN · FD 9912
Domestic ventilation unit M Flex Air (Plus)
2
3
1
Fig. 6.14:Left-hand unit air duct connections
1
Outside air (SAI)
2
Supply air (SAO)
3
Exhaust air (EAI)
4
Extract air (EAO)
Outside air and extract air ducts connect the ventilation unit
with the external wall vents or roof hoods.
Supply air and extract air ducts are routed from the ventilation
unit to air distributors. From the air distributors, they must be
routed in a star shape directly to the valve or the ventilation
grilles without branches.
HINWEIS
NOTE
The air duct system must be sized and planned according to
the requirements of the building and the selected ventilation
unit (see System design chapter).
An incorrectly sized or incorrectly installed air duct system
can result in inadequate ventilation or increased odour prob-
lems, draughts and excessive energy consumption. Country-
specific and regional rules and regulations must be taken into
consideration and observed.
HINWEIS
NOTE
Extractor hoods and vented tumble driers must not be con-
nected to the domestic ventilation unit. It is advisable to use
extractor hoods with air circulation and condensing tumble
dryers.
4
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