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Siemens Standard application AHU CE1P3977en_02
Building Technologies Hardware overview 01.02.2010
Comfort mode, cooling Economy mode, heating
4.5.1 Startup behavior
The room unit initializes automatically after the room unit is connected to the con-
troller and the communication is operating (commissioning is completed). First, all
the symbols appear, then the symbol
P__
appears on the display. The display
returns to normal after a short period. The displays state on P__ if communication
is not properly established (e.g. incorrect room unit address).
User presses the PROG button long (more than 1 second) to enter data and time.
The following applies:
• Flashing parameters can be changed using the
plus and minus buttons.
• Changes can (and must) be completed by pressing the
OK button. The dis-
play automatically goes to the next adjustable parameter.
Please note: This is cyclical. The clock blinks again after changing and con-
firming the month and day. You can exit the menu at this point by pressing
the PROG button.
1. Press PROG button long (hour display blinks), then
set the hour with the
plus and minus buttons.
2. Taste
Press OK (the hour is saved and the minute display flashes), then
set minutes with the
plus and minus.
3. Press
OK button (minutes are saved and the entire time display flashes),
then
set the time display format (12/24 hour display; use the
plus or minus
buttons)
4. Press
OK (the display format is saved and the year display flashes), and
set the desired year with the
plus and minus buttons.
5. Press
OK (the year is saved and the display shows the month/day display,
the month display blinks), and
set the month with the
plus and minus buttons.
6. Press
OK (the month and saved and the day display flashes), and
set the day with the
plus and minus buttons.
7. Press
OK (month and day is saved; display returns to the time).
8. Press PROG (the display returns to normal).
The display returns automatically to normal when the PROG is not pressed
within one minute.
Sample displays
Date and time
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
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