28
Vitovent
200-C 300-C 300-W
— Do not adjust! X
If CO
2
sensors are installed in the rooms and connec-
ted to the ventilation unit, the air flow rate increases or
decreases depending on the CO
2
concentration.
Value Meaning
"0" CO
2
sensor is not installed.
"1" Up to 4 CO
2
sensors are installed in the
rooms and connected to terminal X17 on the
controller PCB of the ventilation unit. Control
of the air flow rate subject to the CO
2
concen-
tration is enabled.
Function check:
In "Diagnosis" "Ventilation: Overview" a
value over 0 ppm is shown for "CO2".
Note
The highest value measured by all CO
2
sen-
sors is displayed. This value is also decisive
for control of the air flow rate.
C108 Set extract air temperature
Vitovent
200-C 300-C 300-W
— X X
Set bypass temperature for ventilation mode:
At extract air temperatures > "Set extract air temper-
ature C108" plus 2 K, the bypass can be enabled for
passive cooling. The outdoor air/extract air is not
routed via the heat exchanger.
Requirement: The bypass is enabled for passive cool-
ing ("Bypass operation C1A0" set to "0").
Note
Further conditions must be met in order for passive
cooling to be switched on: See chapter "Passive cool-
ing" in the "Function description".
Setting 1 ≙ 0.1 °C
C109 Background vent. !
Vitovent
200-C 300-C 300-W
— X X
Set air flow rate for "Economy mode", "Background
vent." and "Holiday program" (ventilation level 1).
Setting subject to the building and engineering.
Standard setting values:
■
Centrally between 0 m
3
/h and "Reduced ventilation
C10A"
or
■
Approx. 30 % lower than "Reduced ventilation
C10A"
Setting in m
3
/h
C10A Reduced ventilation !
Vitovent
200-C 300-C 300-W
— X X
Set air flow rate for the "Reduced" operating status in
the ventilation time program (ventilation level 2).
Setting subject to the building and engineering.
Standard setting values:
■
In the middle, between "Background vent. C109"
and "Standard ventilation C10B"
or
■
Approx. 30 % lower than "Standard ventilation
C10B"
Setting in m
3
/h
Parameter settings
C106 CO2 sensor !
5816558
Parameter
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