Operating Instructions

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Siemens Synco™ living CE1B2740en
Building Technologies Central apartment unit QAX9x3 13.12.2010
Central apartment unit QAX9x3
Operating elements
All operating elements are located on the front of the unit.
Example: Central apartment unit QAX913
The buttons provide the following functions:
Ventilation button, DHW button (QAX913 only)
The button is used to operate ventilation and DHW. If both ventila-
tion and domestic hot water are configured, a selection menu to
choose the desired function is displayed after pressing the button.
To set the ventilation stage (Auto, Off, Stage 1, 2, 3) and to trigger
forced ventilation (extended pressure on button).
QAX913 only: To select the DHW operating mode
(Auto/Normal/Reduced/Protection), and to manually trigger one-time
forced charging of the DHW storage tank (press button longer).
Absence/Supervision button (QAX913 only)
The Absence/Supervision button allows you to set both absence
(present/absent) and supervision (inactive/partly monitored/all moni-
tored). For details, see pages 31 and 29 (absence, supervision).
Apartment timer button
For selecting and activating the timer function for specific rooms.
While the timer function is active, the rooms are heated or cooled to
the selected setpoint (Comfort, Precomfort or Economy), and ventila-
tion is controlled to the corresponding stage setpoint.
Mode button
For selecting the mode for the apartment (Auto / Comfort / Precom-
fort / Economy / Protection). The apartment mode applies to room
control and ventilation.