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Air exchange
You can prevent low humidity in the dwelling by reducing ventilation at low outdoor temperatures. This function is useful for instance
in countries with regular frost or at high altitudes in the mountains where the outdoor air is very dry.
> Air exchange
> Type of ventilation Settings:
Standard setting:
Description:
Water / Comfort / Energy
Comfort
Water: Here, the supply air fan stops operating as long as
domestic water heating is required.
Energy: Here, operation is energy-optimised.
Comfort: Here, the air exchange is always balanced.
> Comfort Description: You have selected comfort where the fan speed level for supply
air and extract air is always the same.
> Low temp. compr. start Settings:
Standard setting:
Description:
0 -15 °C / Off / 0 15 °C
Off
Here you indicate whether the heat pump is to start up at low
outdoor temperatures, even if heating is not required.
Off means that the function is deactivated.
> Level winter low Settings:
Standard setting:
Description:
Level 1 / Level 2 / Level 3 / Off
Off
Here you specify at what fan speed level you want the ventila-
tion unit to operate at low outdoor temperatures.
Off means that the function is deactivated.
> Temperature winter low Settings:
Standard setting:
Description:
-20 10 °C
0 °C
Here you specify at which outdoor temperature you want the
“Winter low” function to be activated.
> Water Description: You have selected Water, which means that the supply air fan
stops operating as long as domestic water heating is required. If
the unit is in cooling mode, the supply air will not stop.
> Low temp. compr. start Settings:
Standard setting:
Description:
0 -15 °C / Off / 0 15 °C
Off
Here you indicate whether the heat pump is to start up at low
outdoor temperatures, even if heating is not required.
Off means that the function is deactivated.
> Level winter low Settings:
Standard setting:
Description:
Level 1 / Level 2 / Level 3 / Off
Off
Here you specify at what fan speed level you want the ventila-
tion unit to operate at low outdoor temperatures.
Off means that the function is deactivated.
> Temperature winter low Settings:
Standard setting:
Description:
-20 10 °C
0 °C
Here you specify at which outdoor temperature you want the
“Winter low” function to be activated.
> Energy Description: You have selected Energy, which ensures energy-optimised
operation through regulation of the supply air volume against
the set temperature curve.
> Low temperature curve Settings:
Standard setting:
Description:
15 46 °C
38 °C
With curve control, the supply air will always be consistent as it
is regulated with a fan speed level up or down.
Min. curve is level 1.
> High temperature curve Settings:
Standard setting:
Description:
39 60 °C
50 °C
With curve control, the supply air will always be consistent as it
is regulated with a fan speed level up or down.
Max. curve is level 4.
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