Zehnder CO2 Sensor Manuel D'utilisation page 23

Operating button
■ First touch (only if LEDs do not have the highest intensity): temporarily set
display LEDs to the highest intensity
■ Touch briefly: select the next function
■ Touch for 5 seconds:
first time: activate settings menu
then: confirm the selected setting
If the operating button is not pressed for 30 seconds while no mode is confirmed,
the device returns to the normal operating mode. No changes are saved.
Display of the manually selected ventilation level: preset 1 (low).
Use if you require low ventilation.
With the CO
the measured CO
Display of the manually selected ventilation level: preset 2 (medium).
Use if you require medium ventilation.
With the CO
the measured CO
Display of the manually selected ventilation level: preset 3 (high).
Use if you require maximum ventilation.
With the CO
the measured CO
Display of the CO
Off: Brightness is off: Press the operating button once.
The CO
Green CO
Orange CO
Red CO
The below only applies to the CO
3. Temporary preset 3 (high), automatic control
2. Temporary preset 2 (medium), automatic control
1. Temporary preset 1 (low), automatic control
If there is a red CO
(see section 4.3). If the indicator remains red, provide extra ventilation by opening
windows and/or doors.
C Sensor, the active ventilation setting is always visible, even when
2
level is programmed as control.
2
C Sensor, the active ventilation setting is always visible, even when
2
level is programmed as control.
2
C Sensor, the active ventilation setting is always visible, even when
2
level is programmed as control.
2
levels.
2
LED turns on for 5 seconds.
2
LED: the CO level in the measured air is good.
2 2
LED: the CO level in the measured air has increased.
2 2
LED: the CO level in the measured air is too high.
2 2
LED: select ventilation based on the measured CO
2
C Sensor.
2
value
2
EN - 23