User Manual
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Siemens Synco™ living CE1B2740en
Building Technologies Central apartment unit QAX9x3 13.12.2010
Apartment operating mode
Pressing the Mode button opens an additional window (Mode pop-up). You
can now select the required apartment operating mode (heating, cooling, ven-
tilation) with the Arrow buttons or the Mode button.
The central apartment unit display shows MAN for manual mode and
the symbol for a manually set apartment operating mode.
The selected apartment operating mode is valid until reset manually to
Auto.
The apartment operating mode can also be selected via the following operat-
ing line:
Main menu > Apartment > Apartment operating mode > Preselection:
Auto
The room control loops and ventilation maintain their
setpoints in accordance with the respective operating
modes. The associated time programs and the holiday/
special day program are active.
Comfort
All rooms and ventilation maintain their respective Com-
fort setpoints.
Precomfort
All rooms and ventilation maintain their respective Pre-
comfort setpoints.
Economy
All rooms and ventilation maintain their respective
Economy setpoints.
Protection
All rooms and ventilation maintain their respective Pro-
tection setpoints.
The individual room operating modes are only active in apartment op-
erating mode “Auto“.
Operating mode via contact
You can select the apartment operating mode to which the controller should
change when the external operating mode switch closes its contact (e.g.
teleswitch for remote control via the telephone).
When the operating mode contact is closed, the set operating mode is acti-
vated for heating/cooling and ventilation.
Operating mode changeover via external contact overrides all other operating
mode settings.
The input function “operating mode contact” must be configured during
commissioning.
The same operating mode contact is used for heating/cooling, ventila-
tion and DHW.
Main menu > Apartment > Apartment operating mode
> Optg mode contact: