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9.3.1.5 Clean Air Control
The Clean Air Control function is used in ventilation sys-
tems where the aim is to regulate the airflow according to
the content of emission/impurities in the room air.
The accessory VOC sensor (Volatile Organic Compounds)
TBLZ-1-60-1-1 or TBLZ-1-60-2-2 is required. The VOC
sensor measures the content of emissions/impurities in %
VOC. See the separate installation instructions for each
VOC sensor.
When an occupant emits CO
amount of emissions/impurities which are measurable by
the VOC sensor. For an approximate translation of the %
VOC to CO
content, see the diagram.
2
When the air handling unit is powered up for the first
time, initialisation of the analogue VOC sensor TBLZ-1-60-
1-1 (part no. 328964-01) occurs. During this initialisation
the VOC sensor provides a fixed signal of approximately
50% VOC for 6 hours. Other VOC sensors are initialised
at the factory. If the unit at a later time is de-energised,
and is subsequently reenergised, the sensor is reinitialised
for 15 minutes (provided that initialisation during the first
energising occasion was not interrupted).
When the VOC sensor measures contents of emissions/
impurities that are lower than the preset value; the air
handling unit's supply air and extract air flows are then
equivalent to the preset min. flows. When the VOC sensor
instead measures contents of emissions/impurities that are
higher than the preset value, the supply air and extract air
flows are variably increased until the preset value or max.
flow is reached.
When the Clean Air Control function is activated, the fan
regulation modes are automatically selected (extract air
fan demand controlled, supply air fan slave controlled).
Later on, they can only be read under Functions in the
menu.
Settings:
Value
Setting
range
Clean Air Control
Inactive/Active
VOC sensor
Analogue/Bus**** Bus
VOC low speed
10 - 90 %
VOC high speed
10-90 %
Min. flow
* m
Max. flow
* m
*) The setting range is the same as the min. - max. settings of the
air handling unit.
** Size 05 = 0.08 m3/s, Size 08 = 0.20 m3/s
*** Size 05 = 0.53 m3/s, Size 08 = 0.74 m3/s
**** Analogue = TBLZ-1-60-1-1. Bus = TBLZ-1-60-2-2.
26
www.swegon.com
, this creates a proportional
2
Factory
setting
Inactive
50 %
30 %
3
/s
0.08/0.20 m
3
/s**
3
/s
0.53/0.74 m
3
/s***
INSTALLATION
FUNCTIONS
*FUNCTIONS*
TEMPERATURE
AIR FLOW/PRESSURE
FILTER
OPERATION
HEATING
COOLING
HUMIDITY
IN/OUTPUTS
IQnomic Plus
ALL YEAR COMFORT
OPTIMIZE
2000
1500
1000
400
10
20
30
40
Example:
800 ppm is equivalent to approx. 30% VOC.
If influenced by other emissions/impurities in the air, such
as cooking odours, cigarette smoke, etc., the VOC content
increases in relation to the CO
We reserve the right to alter specifications without notice.
GB.GOLDLP.170830
* AIRFLOW/PRESSURE *
SA FAN REGULATION
EA FAN REGULATION
CLEAN AIR CONTROL
OUTDOOR TEMP COMP.
SA DOWN REGULATION
SLAVE CONTROL
50
60
70
80
% VOC
content.
2
90
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