Duct System Installation - Komfovent DOMEKT Series Installation And Service Manual

4.1. Duct system installation

The air in and out of the unit flows through the duct system. The duct system should be designed
and selected to have low airflow rates and low pressure differentials, ensuring more accurate airflow
rates, lower energy consumption, lower noise levels and longer life of the unit.
Outdoor vents must be installed as far apart as possible on different sides of the building to prevent
the exhaust air from returning to the air intakes. Try to install the air intake vents where the outdoor air
is the cleanest: do not direct them towards the street, car park or outdoor fireplace. We also recommend
installing the air intake vent on the north or east side of the building, where the heat of the sun in sum-
mer will not have a significant effect on the supply air temperature.
It is highly recommended to install unit connecting ducts of supply inlet and exhaust outlet with a
minimum slope on the outside of the premise, to avoid water flowing into the unit in case of rain or snow.
Air exhaust vent
Air intake vent
It is recommended to insulate the ducts in unheated rooms (attic, basement) to avoid heat loss. It is
also recommended to insulate the supply air ducts if the unit is used for room cooling.
The air ducts are fitted to the unit with self-tapping screws. Different air flow duct positions are
marked on the sticker located on the AHU:
UAB KOMFOVENT we reserve the right to make changes without prior notice
D_21-03
min. 3 m
min. 1 m
min. 3 m
min. 1,8 m
min. 1,8 m
ETA
SUP
Fig. 8. Air duct marking
S
E
E
C
B
A
ODA
outdoor intake air
B
SUP air supplied to the premises
C
ETA
air extracted from the premises
D
EHA outdoor exhaust air
W
N
D
EHA
A
ODA
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