Commissioning; Prerequisites For The Correct Functioning Of The Co; Sensor; Setting The Ventilation Mode - Zehnder CO2 Sensor Manuel D'installation

8. Commissioning

8.1 Prerequisites for the correct functioning of the CO

■ Make sure that the device is not covered so that the air quality can be measured.
■ Ensure sufficient air supply. To do this, for example, open a hinged window or existing
ventilation grilles in the windows, window frames or sliding doors.
■ The ventilation setting cannot be adjusted manually on every device. This is not
possible on a CO

8.2 Setting the ventilation mode

Figure 8.1 ­ Front of the CO
1. Briefly press the operating button to select a ventilation mode.
2. Repeat step 1 until the LEDs light up to the right of the desired ventilation position.
When the ventilation mode is set to temporary manual, automatic control of the
ventilation rate based on the maximum CO
of 12 hours. This depends on the settings on the ventilation unit, please refer to the
ventilation unit manual.
When all LEDs are off: briefly press the operating button.
If only the CO
maximum CO
If the CO
ventilation presets are also lit, the device controls the ventilation based on the
measured CO
46 - EN
(C or 0­10V) Sensor set by the installer as a sensor.
2

Sensor

2
LED is lit, the device controls the ventilation based on the set
2
values.
2
LED of the CO C Sensor is lit and one or more of the LEDs for the
2 2
level between the set and maximum ventilation position.
2
Sensor
2
Legend
1. Top LED
2. Middle LED
3. Bottom LED
4. Operating button
5. CO
2
values is switched off for a maximum
2
LED