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035
RDE10...
Room Temperature Controllers
with 7-Day Time Switch and LCD
for heating systems
2-position control with ON/OFF output for heating
Operating modes: normal operation and energy saving mode
7-day time switch and manual operation
Mains-powered AC 230 V (RDE10) or battery-powered DC 3 V (RDE10.1)
Use
The RDE10... is used for the control of the room temperature in heating systems.
Typical applications:
•
Apartments
Commercial spaces
Schools
For the control of the following pieces of equipment:
•
Thermic valves or zone valves
Gas or oil burners
Fans
Pumps
Siemens Building Technologies
HVAC Products
CE1N3035en
25.09.2003
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
Function diagram
T
Room temperature
SD
Switching differential
ON
W
Room temperature setpoint
Q14
Output signal for heating
T[°C]
W
OFF
SD
Operating modes
The RDE10... 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 between the operating modes can be made
either automatically according to the 7-day time switch or manually with the operating
mode selector.
Normal operation
When normal operation is activated, s
ym
bol “
“ appears on the display. The setpoint
,
+
and
-
.
can be readjusted by pressing buttons
Energy saving mode
or OFF
When energy saving mode is activated, symbol “
“ appears on the display. The set-
,
+
and
-
.
point can be readjusted by pressing buttons
In energy saving mode, the unit can also be switched to “Off”. This is accomplished by
selecting a setpoint of 5 °C and then keeping button
-
depressed for 4 seconds. In
that case, symbol '
' does not appear.
7-day time switch
The changeover between the operating modes can take place either automatically
( ) or manually ( , ), depending on the position of the operating mode selector.
When the operating mode selector is in position “ ”, changeover will take place
automatically according to the selected switching pattern. For every weekday, a specific
switching pattern can be selected.
Factory setting:
Day(s)
Normal operation
Energy saving mode
Mo (1) – Fr (5)
6:00 – 8:00 h and
17:00 – 22:00 h
22:00 – 6:00 h and
08:00 – 17:00 h
Sa (6) – Su (7)
7:00 – 22:00 h
22:00 – 7:00 h
The current setpoint can be temporarily readjusted by pressing
buttons
+
and
-
. The setpoint will then be reset to its initial value the next time auto-
matic or manual changeover takes place.
When the operating mode selector is set to”
“ or “
“, the RDE10... will maintain
normal operation or energy saving mode respectively.
2/8
Siemens Building Technologies
Room temperature controllers
CE1N3035en
HVAC Products
25.09.2003
Display
The digital display shows the actual room temperature, the time of day, the weekday,
the current switching pattern and the symbol of the operating mode currently active.
The switching pattern shows normal operation as a double bar and energy saving
mode as a single bar with a flashing time pointer. When the heating output is activated,
the triangle symbol appears.
24
24
24
0
6
12
18
0
6
12
18
0
6
12
18
Automatic changeover according
Normal operation
Energy saving mode
to the switching pattern
Backup
In the event of a power failure, the setpoints and the information required for operating
mode changeover are retained for 3 minutes. This is enough to cope with power fail-
ures of short duration (with RDE10) or when changing the batteries (with RDE10.1).
Type summary
Type reference
Features
RDE10
Mains-powered AC 230 V
RDE10.1
Battery-powered DC 3 V
Ordering
When ordering, please give name and type references, e.g.
room temperature con-
troller RDE10
.
Valve actuators are to be ordered as separate items.
Equipment combinations
Type of unit
Type reference
Data sheet
Motoric on/off actuator
SFA21...
4863
Thermal actuator (for radiator valve)
STA21...
4893
Thermal actuator (for small valve 2,5 mm)
STP21...
4878
.
.
.
.
.
.
.
.
.
Accessories
Description
Type reference
Adapter plate 120 x 120 mm for 4“ x 4“
conduit
boxes
ARG70
Adapter plate 96 x 120 mm for 2“ x 4“
conduit
boxes
ARG70.1
Adapter plate for surface wiring 112x130 mm
ARG70.2
3/8
Siemens Building Technologies
Room temperature controllers
CE1N3035en
HVAC Products
25.09.2003
Mechanical design
The unit consists of two parts:
A plastic housing with digital display, which accommodates the electronics, the
operating elements and the built-in room temperatures sensor
A mounting base
The housing engages in the mounting base and snaps on.
The base carries the screw terminals.
Legend
1
Display of the room temperature in °C or setpoints
2
Current time of day using the format 00:00 ... 23:59
3
Current weekday from 1 (Monday) to 7 (Sunday)
4
Current switching pattern with flashing time pointer
5 symbol when actual room temperature is displayed
6 Normal operation
Energy saving mode
7 symbol in automatic mode or when selecting the switching pattern
8 heating on
9 symbol indicating that batteries need to be replaced
(only with battery-powered versions)
10 Buttons for adjusting the setpoints, the time of day and the switching times
11 Operating mode selector
12 Setting the weekday
13 Setting the time of day
14 Selecting and leaving the setting mode for the switching pattern
15 Setpoint adjustment for energy saving mode
16 Setpoint adjustment for normal operation
17 Button for confirming the switching pattern settings
18 Battery compartment (only with battery-powered versions)
4/8
Siemens Building Technologies
Room temperature controllers
CE1N3035en
HVAC Products
25.09.2003
Notes
The room temperature controller should be mounted in a location where the air tem-
perature can be measured as accurately as possible without getting adversely affected
by direct solar radiation or other heat or refrigeration sources.
Mounting height is about 1.5 m above the floor.
The unit can be fitted to a recessed conduit box.
Only authorized staff may open the controller.
Caution: AC 230 V!
The cables used must satisfy the insulation requirements with regard to mains
potential
Mounting, installa-
tions and commis-
sioning
When mounting the unit, fix the baseplate first. Then, make the electrical connections
and fit and secure the cover (also refer to separate Mounting Instructions).
The controller must be mounted on a flat wall and in compliance with local regulations.
If there are thermostatic radiator valves in the reference room, they must be set to their
fully open position.
Maintenance
The controller is maintenance-free.
Sensor calibration
If the temperature on the display does not agree with the room temperature effectively
measured, the temperature sensor can be recalibrated. For that purpose, both buttons
+
and must be pressed simultaneously for 3 seconds. Then, the temperature
displayed can be changed by a maximum of +/- 3 K by pressing the
+
and
-
buttons.
Five seconds after the last push of a button, the controller will automatically return to
the normal operational statuses.
Change of batteries
(only with battery-
powered versions)
If the battery symbol appears, the battery power is almost exhausted and the batteries
should be replaced.
+
-
simultane-
ously for 3 seconds. All individual settings will be reset to their standard values.
Reset
To reset, first press and hold the button
, then press the two buttons
5/8
Siemens Building Technologies
Room temperature controllers
CE1N3035en
HVAC Products
25.09.2003
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