COOKER HOOD FUNCTION
The cooker hood function balances the
ventilation when the cooker fan is used to
help prevent excessive negative pressure and
improves fume extraction capability of the
cooker hood. The function starts automati-
cally when the damper in the cooker hood is
opened and runs until the damper is closed.
This cooker hood function should always
put into service and set in conjunction with
commissioning.
CENTRAL VACUUM CLEANER FUNCTION
The central vacuum cleaner function helps to
balance the ventilation when using a central
vacuum cleaner and prevents excessive
negative pressure and improves the cleaning
result. A switching signal can be connected to
the ventilation unit’s signal input so that the
function is activated automatically when the
central vacuum cleaner is started.
The function can also be started from a Smart
control panel, the function then runs until the
set time has elapsed (max 120 minutes).
The central vacuum cleaner function can be
modified from the “Settings” menu.
AUTOMATIC HOME/AWAY/BOOST SYSTEM
The function is available only on models
equipped with a carbon dioxide sensor. The
automatic control system controls the
ventilation strength variably according to the
carbon dioxide level in the home.
Auto Home/Away/Boost
A+ now 950 ppm
Home limit
Away limit
Filter time
900 ppm
600 ppm
1 min
The settings menu shows the value “A
+
now”
the current level of carbon dioxide. The func-
tion is set by defining the limits values Home
and Away. A suitable Home limit value can
be determined by reading the “A
+
now”
value from the menu when a normal number
of people are in the home. A reduction in the
Home limit value results in the ventilation
level increasing. Similarly you can determine
the Away limit value by reading the “A
+
now” value when the property has been
empty. The ventilation unit switches to Away
mode earlier if you increase the Away limit
value.
If it seems that the ventilation system reacts
too quickly to changes in the carbon dioxide
level, you can increase the filtering time.
AUTO HUMIDITY CONTROL
The function is available only on models
equipped with a humidity sensor. The function
boosts the ventilation according to the normal
moisture load caused by people, for example,
increased moisture load in the home due to
showering. If the home’s moisture level (RH)
remains above 60 % for a long period, we
recommend that the ventilation is boosted
and that a check is made of the moisture
source.
The value “RH now”, the current moisture
level, is shown on the settings menu.
The automatic humidity system measures
the daily average value in the extract air and
compares this with the current value. The
ventilation starts to be boosted variably when
the humidity has risen as much as the Boost
limit value.
Auto humidity control
RH now 30 %
Boost limit
Full boost limit
Sauna function
5 % + RH
30 % + RH
Sauna boost
5 %
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