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3
System design
The requirements for the ventilation system to be installed are
as individual as the apartments and residential buildings them-
selves. A system design is required to select the most suitable
ventilation unit and the correct settings.
It is essential to create a balance of air volumes that factors in
both the size and the utilisation of the individual rooms to be
ventilated. The system design calculates the required air vol-
ume flows, the size and number of air inlets and outlets, dimen-
sions the air duct system and ultimately determines the re-
quired ventilation unit.
The air volume flows are selected so that the air flows from
rooms with low air contamination (supply air rooms) to rooms
with higher air contamination (exhaust air rooms).
The following are required for the system design:
Information on the building and the ventilated living space
Ground plans with details outlining the use of space
Sectional view with details of the room height
These documents are used to divide up the building into supply
air areas, exhaust air areas and air overflow areas.
Supply air rooms are all living rooms, bedrooms and recreation
rooms
Exhaust air rooms are bathrooms, toilets, kitchens, utility rooms
Overflow areas are located between the supply air and exhaust
air areas, e.g. hallways
HINWEIS
NOTE
An incorrectly dimensioned ventilation system can lead to de-
fective ventilation and purging or cause loud noises and ex-
cess energy consumption. Country-specific and regional rules
and regulations must be taken into consideration and ob-
served.
CAUTION!
Special requirements apply for simultaneous use of ventila-
tion systems and fireplaces. Country-specific and regional
rules and regulations must be observed. Early consultation
with the relevant chimney sweep is strongly recommended!
CAUTION!
Existing fire protection regulations must be taken into consid-
eration and observed for the installation of ventilation sys-
tems!
6
DOK4SVxxDEN · FD 9912
Domestic ventilation unit M Flex Air (Plus)
www.glendimplex.de
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