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Siemens Building Technologies
Room temperature controllers
CE1N3031en
HVAC Products
24.09.2003
Functions
The controller acquires the room temperature with its integrated sensor and maintains
the setpoint by delivering control commands. The switching differential is 1 K.
Q14
T[°C]
ON
OFF
W
SD
30
31
D
0
1
T Room
temperature
SD Switching
differential
W
Room temperature setpoint
Q14
Output signal for heating
Operating modes
The RDD10... provides normal operation and, optionally, energy saving mode or OFF.
The difference between normal operation and energy saving mode is only the room
temperature setpoint. The changeover from normal operation to energy saving mode,
and vice versa, is made by pressing a button.
When normal operation is activated, symbol “ “ appears on the display. The setpoint
can be readjusted by pressing buttons
+
and
-
.
When energy saving mode is activated, symbol “ “ appears on the display. The set-
point can be readjusted by pressing buttons
+
and
-
. When the energy saving set-
point is set to “ 0 ”, the controller is switched off, that is, the RDD10... is not active in
energy saving mode. In that case, symbol “ “ does not appear.
When this function is activated and a manual changeover has been made, the operat-
ing mode will automatically be reset on completion of an adjustable period of time. This
period of time can be adjusted with buttons
+
and
-
after pressing the hour glass
button.
The operating action of the reset depends on the setting of the DIL switch, from normal
operation to energy saving mode / OFF, or vice versa. The operating mode can be
manually reset before the delay time has elapsed. When the delay is active, the hour
glass symbols appears on the display.
The digital display shows the actual room temperature and the symbol of the operating
mode currently active. When the heating output is activated, the triangle symbol ap-
pears. When the function “automatic operating mode change over” is activated, the
hour glass symbol is shown.
Display in normal operation
Display in energy saving mode
Normal operation
Energy saving mode
or OFF
Automatic operating
mode change over
Display
