12
DV50 DV80
(Integral CO
2
Sensor)
DEPLOYMENT WIZARD
EXPERT SETTINGS
FAN SETTINGS
The following sections describe how to set the output ratio between
the supply and extract air fans.
IMPORTANT
Adjust the air flows, according to the values in the ventilation
design. Try to adjust the air flows in a way that you do not have to
choke the air flows at the valves. This is the most energy efficient
set up.
First, set both supply and extract values as close to the ideal value
as possible. The ideal values are presented in the supply and
extract air volume graphs. If, at the beginning, the air flows differ
greatly from the designed rate. Check the air flows by measuring
them at the valves, and fine tune the airflow rates, if necessary by
first adjusting the units fans, then by adjusting the room valves.
NOTE
If the outside air is extremely cold (below -3°C on a plastic cell),
the ventilation device may have to defrost the heat exchanger cell.
If this occurs, you cannot adjust the air flows and the
Defrosting
figure is shown on the control panel.
SUPPLY AIR
When you want to set the system supply air settings, proceed as
follows:
1. The deployment wizard Fan settings screen is opened.
2. Set the supply air quantity as a percentage of the maximum by
using the
Plus
and
Minus
buttons. The fan speed (1/min) will
change, according to the percentage value.
3. Once you have set the supply air fan settings, press the
Right
arrow
button.
EXTRACT AIR
When you want to set the system extract air settings, proceed as
follows:
1. The deployment wizard Fan settings screen is opened.
2. Set the extract air quantity as a percentage of the maximum
by using the
Plus
and
Minus
buttons. The fan speed (1/min)
will change, according to the percentage value.
3. Press the
OK
button.
4. The extract air fan speed is now set.
WARNING
The ventilation specialist has set
the supply and exhaust air settings
when deploying the ventilation
unit. If you make changes to the
settings, ensure that they conform
with the ventilation design to
ensure the system still complies
with Building Regulations.
