Zehnder 655000885 Guía Para La Instalación Y El Usuario página 17

7. Recommended ventilation settings
The CO Sensor is used to offer automatic demand control ventilation. When correctly
2
installed and when AUTO is active on the ventilation system, based on the values
measured by the CO
it is installed. If necessary, ventilation is temporarily increased relative to the program
setting. This requires no specific settings by the installer or end user.
If there are people in a room without a CO
selecting a temporary manual ventilation setting. If this situation occurs frequently, select
a timer program on the ventilation unit:
■ Select preset 2 (medium) when a few people are in a room where there is no CO
Sensor.
■ Select preset 3 (high) when many people are in a room where there is no CO
8. Selecting the ventilation setting
1. Select the ventilation setting.
2. Repeat step 1 for the desired
ventilation setting.
When a temporary ventilation setting is selected or MANUAL is active on the ventilation
unit, there is no automatic, demand­controlled ventilation.
The ventilation unit can be configured so that automatic, demand­controlled
ventilation based on CO
ventilation unit's installer manual.
The system will automatically return to auto ventilation, except when MANUAL is active:
­ If no timer program is selected: Two hours after the last operation.
­ If a timer program is selected: At the next step in the timer program.
At any other time, even when MANUAL is active, you can return to automatic ventilation
by selecting AUTO on the CO
Sensor, the device ensures sufficient ventilation in the room where
2
Preset 1 ­ Low
Absent Setting
is always active, even when MANUAL is selected. See the
2
Sensor or on any other control in the system.
2
Sensor, ensure sufficient ventilation by
2
Preset 2 ­ Medium
Ventilation based on CO
2
Sensor.
2
Preset 3 ­ High
value
2
EN - 17