Operating Instructions

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Siemens Synco™ living CE1B2740en
Building Technologies Central apartment unit QAX9x3 13.12.2010
The switching points can be set, deleted or copied to some other weekday.
The settings are made analogously to the room time switch settings (see
page 41).
The factory setting contains the switching times for all weekdays at
06:00 (changeover to Comfort) and 22:00 (changeover to Economy).
Ventilation state
Ventilation stage
Shows the active ventilation stage (Off, Stage1, Stage2, Stage3).
Main menu > Ventilation > Ventilation state > Vent stage:
Reason
Display the reason for the current ventilation stage.
Main menu > Ventilation > Ventilation state > Cause:
Possible reasons:
• Commissioning
• No request
• Operating mode
• Indoor air quality
• Ventilation contact
• Humidity limitation
• night cooling
• Stage selector
• Window open
• Smoke
• Forced ventilation
• CO alarm
HR bypass
Shows if HR bypass (e.g. for night cooling) is active.
Main menu > Ventilation > Ventilation state > HR bypass:
Indoor air quality
Shows the current indoor air quality (0..2000 ppm) on the sensing element.
Main menu > Ventilation > Ventilation state > IAQ: