• The VOC sensor (Volatile Organic Compound), meas-
ures the content of emissions/impurities in the unit %
VOC.
• When an occupant emits CO
2
, this creates a propor-
tional amount of emissions/impurities which are meas-
urable by the VOC sensor.
• For an approximate translation of the % VOC to CO
2
content, see diagram
• The sensors are concealed behind the faceplate on
the ADAPT Parasol and thus sit in the path of induced
room air.
• The VOC sensor generally does not react to a specifi c
substance but a variety of substances.
• The VOC sensor is Modbus connected and can be con-
nected to ADAPT Parasol master or slave.
• The CO
2
sensor is connected to an analogue input and
must be connected to ADAPT Parasol master.
• Both can be factory fi tted behind the faceplate.
Air quality sensor
General
Data entry in SWICCT:
• The PPM values are similar as for a CO
2
sensor, and
are then recalculated to a correct output signal corre-
sponding to diagram.
• The values set in fi gure to the right signifi es that the
ADAPT Parasol has started to release more air at the
equivalent of 600 ppm in the room, and continues
variably up to 1200 ppm (max fl ow)
• VOC use Auto means that the control automatically
detects whether the sensor is connected.
OFF mode is used to disable already read sensors.
• Input 3 usage is only used for CO
2
sensors and you
specify here whether it is a 0-10V or 2-10 V sensor.
• PPM CO
2
/ volt can also be set for the CO
2
sensor in
instances when sensors other than standard are used.
• See functional description air on page 17.
• More info about VOC and substances: Product sheet
CAC on swegon.com
• Air regulation from air quality sensor also takes place in
absence mode (can be changed)
CO
2
or VOC?
Carbon dioxide CO
2
is in itself harmless, but is easy to
measure and provides a good indication to the occupancy
load in a building. However, a CO
2
sensor does not react
to emissions from e.g. building materials or strong odours
such as perfume, unlike a VOC sensor.
Auto
700
ppm
1000
ppm
CO2 2-10V
200
ppm
VOC use
CO2/VOC min set value
CO2/VOC max set value
Input 3 usage
CO2/Volt (sensor)
CO2/VOC
CO
2
comparison/ppm
CAC outsignal %
29
ADAPT Parasol b
Swegon reserves the right to alter specifi cations.
25/11/2014
www.swegon.com
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