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After-heating element
You will only have this menu item if an electrical after-heating element or a water after-heating element has been installed, and if it
has been activated in "Service settings".
ATTENTION
An after-heating element is not included as standard. However, you can order it as an additional extra, and it can also be
retrofitted.
If you want to be able to control the supply air temperature, you will need to install an after-heating element. This allows you to control
the supply air temperature irrespective of the outdoor temperature. The after-heating element can also contribute towards the heat-
ing of the dwelling.
> After-heating element
> Turn on/turn off
Humidity control
The primary purpose of ventilation is to extract humidity from the house so it does not damage the building, and to achieve a good in-
door climate. During long periods with sub-zero temperatures, air humidity in the house may fall to a level that is critical for the build-
ing and for the indoor climate. Wooden floors, furniture and walls can be damaged by very dry air, which also whirls up dust, resulting
in a poor indoor climate.
This is rectified by an integrated humidity control system that maintains good, relative air humidity. When the average air humidity in
the house falls below a set level (default set at 30%), ventilation may be reduced. It will typically only be for a short period of time. This
will help avoid further reduction of the air humidity in the house.
The humidity control system also has a function that allows increased ventilation, should the air humidity increase, for instance when
having a bath. The risk of mould growth in the bathroom is reduced, and the bathroom mirror will rarely steam up.
The humidity control system follows the average air humidity level measured over the previous 24 hours. In this way the system au-
tomatically adapts to summer and winter conditions.
> Humidity control
> Vent.low humidity
> Low humidity level
> Vent.high humidity
> Max time hi.humidity
Settings:
Standard setting:
Description:
Settings:
Standard setting:
Description:
Settings:
Standard setting:
Description:
Settings:
Standard setting:
Description:
Settings:
Standard setting:
Description:
Off / On
Off
The user can turn the after-heating element on and off here.
De-activated / Level 1 / Level 2 / Level 3
Level 1
When the current humidity drops below the low humidity level,
the ventilation unit switches to the set ventilation level.
15 45%
30%
When current humidity below this value falls, the ventilation
level set above is activated.
De-activated / Level 2 / Level 3 / Level 4
Level 3
At high humidity levels, for instance when having a bath, the
unit changes to the set fan speed level.
De-activated / 1 - 180 min.
60 min.
The function "High humidity" stops when actual humidity falls
below 3% above the average air humidity.
However, this time limit will stop operation if it fails within the
set time period.
15
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