Ventur SQA Betriebsanleitung Seite 5

AIR QUALITY SENSOR SQA
Fumes, odours, moisture and other pollutants diminish the level of quality of
the ambient air.
The SQA senor allows control of this level by switching the fan on when
the concentration of pollutants is higher than the preset limit.
When the level of air quality returns back to the preset value, the fan will
continue to work for an adjustable time of between 1 and 25 minutes.
MOUNTING AND ELECTRICAL WIRING
IMPORTANT: Do not use the SAQ sensor to detect combustion gases or in
safety installations as a detecting element for fumes or in any other alarm
system.
Do not install the sensor too close to any significant source or heat,
humidity or grease (kitchen).
Mounting
Fix the SQA at a height of 2 metres above the floor level and in such a way
that the air circulates freely. Avoid installation close to a door, window,
chimney or a corner.
To fix the SQA to the wall, simply carefully remove the front cover by
loosening the screw in the bottom. Fix the box in the choosen site through
the holes in the base.
Electrical wiring
Before commencing wiring of the sensor, ensure that the mains supply is
disconnected.
In the installation there must be a double pole switch with an opening of at
least 3 mm between contacts.
Adjustment
To be active, the sensor needs 15 minutes of operation in the normal
conditions or use.
When the sensor is connected to the mains supply, the green indicator will
light.
The yellow indicator nº3 shows that the ambient air has a pollution level
above the selected value.
The small wheel marked SQA can be used to adjust the required level of air
quality. This level will depend on the application. Turn the SQA wheel down
until the yellow indicator nº 3 light, and then, turn the wheel up until the light
is off. At this setting, the sensor will be adjusted for the present level of air
quality.
The wheel « t » is for adjusting the timer of the SQA. This timer
activates at the moment that the level of air quality goes reaches the
selected value, to ensure a complete ventilation of the room. The yellow
indication nº 2 will light while the fan is working during timer operation (1-25
min).
Technical characteristics
Voltage: Single phase 230V 50Hz
Maximum load: 6 (2) A
Working temperature range: 0 / 50 ºC
Class II appliance: