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Siemens Switzerland Ltd User manual RVS61.843 CE1U2355en_02
HVAC Products 6 The settings in detail 23. November 2007
6 The settings in detail
6.1 Time of day and date
The controller has a yearly clock with time of day, weekday and date. To ensure that
the heating program works correctly, both time of day and date must be correctly set.
Line no. Operating line
1 Hours/minutes
2 Day/month
3 Year
5 Start of summertime
6 End of summertime
The dates set for the changeover from wintertime to summertime, and vice versa,
ensure that on the first Sunday after the set date the time of day will change from 02:00
(wintertime) to 03:00 (summertime), and from 03:00 (summertime) to 02:00
(wintertime).
6.2 Operator section
Operation and display
Line no. Operating line
20 Language
German
English
French
Dutch
22 Info
Temporarily
Permanently
26 Operation lock
Off
On
27 Programming lock
Off
On
28 Direct adjustment
Automatic storage
Storage with confirmation
Temporarily: After pressing the info button, a change to the “predefined“ basic display
is made after a maximum of 8 minutes, or by pressing the operating
mode button (with the QAA78… only after 2 minutes) .
Continuously: After pressing the info button, a change back to the “new“ basic display
is made after a maximum of 8 minutes. The info value selected last will
be adopted by the new basic display.
This setting cannot be made with the QAA78…
When the operation lock is activated, the following operating elements can no longer be
adjusted:
Heating circuit operating mode, DHW operating mode, room Comfort setpoint (setting
knob), and occupancy button.
When the programming lock is activated, parameter values can still be displayed, but
can no longer be changed.
• Temporary deactivation of programming.
Within the programming level, the programming lock can temporarily be overridden.
Daylight saving
time/standard time
changeover
Info
Operation lock
Programming lock
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