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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
Page 27