11
Fan
Superuser
Fan speed - at low outdoor temperature
Longer periods of persistent frost will give low humidity in the home. This can be prevented by lowering the ventila-
tion when the outdoor temperature is low.
Low outdoor temperature is set in the Fan menu:
• Low outdoor temp. Low fan speed function at low outdoor temperature can be switched ON and OFF
(factory setting: off).
• Low outdoor temp. You can set at which outdoor temperature low fan speed should start
(factory setting: 0°C).
• Low out-temp. speed (%) You can set the fan speed at low outdoor temperature
(factory setting: 25%).
Fan speed - at CO
2
control (Accessories)
It is possible to control the ventilation according to the CO
2
level, if a CO
2
sensor is installed.
CO
2
control is overridden by: Humidity control, Low outdoor temperature and De-icing.
CO
2
control is set in the Fan menu:
• Min CO2 level (ppm) This determines at which CO
2
level control is to start
(factory setting: 600 ppm).
• Min CO2 fan speed (%) Here you can set the fan speed at the start of the CO
2
regulation
(it is recommended to set the rate for basic ventilation)
(factory setting: 25 %).
• Max CO2 level (ppm) This determines at which CO
2
level ventilation should be highest
(factory setting: 1260).
• Max CO2 fan speed (%) Here you set the fan speed at high CO
2
level
(factory setting: 100%).
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