Siemens RDH10 User manual
CE1N3069en
14.12.2007 Building Technologies
3069
Room temperature controller
with large LCD RDH10
Non-programmable, for heating or cooling systems
•Large LCD
•Battery-powered: 2 x alkaline batteries type AA, 1.5 V
Use
The RDH10 is used to control the room temperature in heating or cooling systems.
Typical applications:
•Homes
•Residential buildings
•Schools
•Offices
The controller is used together with the following equipment:
•Thermal valves or zone valves
•Combi boilers
•Gas or oil burners
•Fans
•Pumps
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Siemens Room temperature controllers CE1N3069en
Building Technologies 14.12.2007
Functions
The controller acquires the room temperature with its integrated sensor.
Q14
T[°C]
ON
OFF W
SD
3031D01
T Room temperature
SD Switching differential
W Room temperature setpoint
L1 Output signal for heating
Y2
T[°C]
ON
OFF
SD
3011D02
T Room temperature
SD Switching differential
W Room temperature setpoint
L1 Output signal for cooling
The RDH10 provides control of the room temperature only.
The digital display shows the actual room temperature and the Comfort temperature
setpoint. When the heating output is active, the triangle symbol appears.
When taking out the batteries, the setpoints and the information required for operating
mode changeover are retained for maximum 2 minutes.
Ordering
When ordering, please give name and product number: Room temperature controller
RDH10.
Valves and actuators are to be ordered as separate items.
Equipment combinations
Type of unit Product number Data sheet
Electromotoric actuator SFA21... 4863
Electrothermal actuator (for radiator valves) STA21... 4877
Electrothermal actuator (for small valves 2.5 mm) STP21... 4878
2- or 3-port zone valve MXI/MVI421… 4867
Electromotoric actuator for zone valves V..146.. SUA21 4830
Electric actuator SUA11/22 4832
Air damper actuator GDB… 4624
Air damper actuator GSD/GQD… 4606
Air damper actuator GXD… 4622
.
.
.
Function diagram
Temperature sensor
Display
Backup
L1
L1
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Siemens Room temperature controllers CE1N3069en
Building Technologies 14.12.2007
Mechanical design
The unit consists of 3 parts:
•Plastic housing with digital display accommodating the electronics, operating ele-
ments and built-in room temperature sensor
•Baseplate (mounting base)
•Removable battery compartment
The housing engages in the baseplate and snaps on. The baseplate carries the screw
terminals. There is a reset button on the rear of the unit.
1 Display of the room temperature in °C
2 Indicates a request for heat
3 Temperature setting knob
4 Battery compartment
5 Comfort temperature setpoint
6 Indicates low battery power; replace batteries
Key
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Siemens Room temperature controllers CE1N3069en
Building Technologies 14.12.2007
Notes
Mount the room temperature controller in a location where the air temperature can be
acquired 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.
When mounting the unit, fix the baseplate first. Then, make the electrical connections
and fit and secure the controller (also refer to the separate mounting instructions).
Mount the controller on a flat wall and in compliance with local regulations.
If there are thermostatic radiator valves in the reference room, set them to their fully
open position.
The controller is maintenance-free.
If the battery symbol appears, the batteries are almost exhausted and must be
replaced.
To reset, press the reset button on the rear of the unit. All individual settings are then
reset to their default values.
Mounting, installation
and commissioning
Maintenance
Change of batteries
Reset
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Siemens Room temperature controllers CE1N3069en
Building Technologies 14.12.2007
Technical data
Operating voltage DC 3 V (2 x 1.5 V AA alkaline batteries)
Battery life >1 year (with AA alkaline batteries)
Internal:
Thermistor 10 kΩ± 1% at 25 °C
Relay contacts
Switching voltage Max. AC 250 V
Min. AC 24 V
Switching current Max. 5 A res., 2 A ind.
At AC 250 V Min. 200 mA
Contact life at AC 250 V Guide value:
At 5 A res. 1 x 105cycles
Insulating strength
Between relay contacts and coil AC 3,750 V
Between relay contacts (same pole) AC 1,000 V
Switching differential SD 1 K
Setpoint setting range 5…30 °C
Factory setting comfort setpoint 20 °C
Resolution of settings and displays
Temperature setpoint 0.5 °C
Display of actual temperature value 0.5 °C
Connection terminals (via baseplate) Screw terminals
For solid wires 2 x 1.5 mm2
For stranded wires 1 x 2.5 mm2(min. 0.5 mm2)
Operation IEC 721-3-3
Climatic conditions Class 3K5
Temperature 0…+40 °C
Humidity <90% r.h.
Transport IEC 721-3-2
Climatic conditions Class 2K3
Temperature -25…+60 °C
Humidity <95% r.h.
Mechanical conditions Class 2M2
Storage IEC 721-3-1
Climatic conditions Class 1K3
Temperature -10…+60 °C
Humidity <90% r.h.
conformity to
EMC directive 2004/108/EC
Low-voltage directive 2006/95/EC
N474 C-tick conformity to
Test standards and requirements EN 61000-6-3, AS/NZS 4251.1: 1999
Product safety
Automatic electrical controls for EN 60730-1 and
household and similar use EN 60730-2-9
Information technology equipment-
Safety-General Requirements EN 60950-1
Generic standards-Compliance to
lower power electronic apparatus EN 50371-1
Safety class II as per EN 60730
Pollution degree 2
Degree of protection of housing IP20
Weight (incl. packaging)
RDH10 340 g
Color of housing front Signal-white RAL 9003
Housing material ABS (LCD lens: PC)
Power supply
Sensor inputs
Switching outputs
(LX, L1, L2)
Outputs
Operational data
Electrical connections
Environmental conditions
Standards
General
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Siemens Room temperature controllers CE1N3069en
Building Technologies 14.12.2007
Lx, Nx Live, neutral conductor, AC
24...250 V
Lx, L2 N.C. contact (for N.O. valves)
Lx, L1 N.O. contact (for N.C. valves)
Connection diagram
Lx
Nx
3069A01
RDH10
L1
Lx
3V
L2
5(2) Amax.
Application examples
T
T
F1
F2
N1
M1
Y2
2222S01
T
T
F1
F2
N1
M1
Y2
2222S02
T T
Room temperature controller with direct
control of a gas-fired wall-hung boiler
Room temperature controller with direct
control of a gas-fired floor-standing boiler
T
N1
Y1
2222S03
M1
TN1
2264S01
E1
Room temperature controller with direct
control of a heating circuit pump (precontrol
by manual mixing valve)
Room temperature controller with direct
control of cooling equipment
F1 Thermal reset limit thermostat
F2 Safety limit thermostat
M1 Circulating pump
E1 Cooling equipment
N1 Room temperature controller RDH10
Y1 3-port valve with manual adjustment
Y2 Magnetic valve
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Siemens Room temperature controllers CE1N3069en
Building Technologies 14.12.2007
Dimensions
Room temperature
controller
Baseplate
©2007 Siemens Switzerland Ltd Subject to change
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