Page 1
s
3
175
RDD81
0KN/NF
Touch Screen Flush-mount Room
Thermostats with KNX
Communications
For
heating applications
• KNX bus communications (S-mode and LTE mode)
• Large display with backlight
• 2-position (ON/OFF) control with potential free output for h eating
• 2 multifunctional inputs for keycard, window contact, external temperature
sensor, presence detection, and etc.
• Operating modes: Comfort, Economy and Protection
• Minimum and maximum limitation of room temperature setpoint
• Control depending on the room or external temperature sensor
• Adjustable commissioning and control parameters
• Commissioning with Synco ACS, ETS4 or via local HMI
• Interoperation into Synco 700
• Integration into Desigo via group (ETS4) or via individual addressing
• Integration into third-party system via group addressing (ETS4)
• AC 230 V operating voltage
• RDD810KN/NF: Mounting on recessed square 86 mm box with 60.3 mm
fixing centers and min 40 mm depth, requires additional mounting frame
CB1N3175en
2016-03-10
Building Technologies
Page 2
Use
Room temperature control in a heating system:
Typical applications:
• Apartments
• Commercial buildings
• Schools
For the control of the following pieces of equipment:
• Thermal valves or zone valves
• Gas or oil boilers
• Fans
• Pumps
• Floor Heating
The heating unit can be configured using one of the following tools via remote
configuration:
• Local HMI
• Synco ACS
• ETS4
Functions
• Room temperature control via built-in temperature sensor or external room
temperature sensor.
• Selection of operating mode via touch screen.
• Temporary Comfort mode extension.
• Display of current room temperature or setpoint in °C and/or °F.
• Minimum and maximum limitation of room temperature setpoint.
• Key lock function: unlock, total lock and setpoint
• 2 multifunctional inputs, freely selectable for:
− Window contact
− Presence detector
− External room temperature or return air temperature sensor
− Fault input
− Monitor input for temperature sensor or switch state
• Floor heating temperature limitation.
• Reload factory settings for commissioning and control parameters.
• Wizard function for easy commissioning via HMI
• KNX bus (terminals CE+ and CE-) for communication with Synco 700 or KNX
compatible devices
• Display of time of day via KNX bus
• Display of outdoor temperature via KNX bus on INFO page
• Time scheduling and central control of setpoints via KNX bus
• With a Synco RMx7xx controller, the energy demand signal of the thermostat is
used to optimize energy supply.
Applications
The thermostat supports the heating applications:
• Hydronic floor heating controls
• Radiators
• Wall-hung boilers
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Appication Examples
Room thermostat to control the valve of
the radiator application
Room thermostat to control the valve for the
floor heating application
Room thermostat with direct control of a
gas-fired wall-hung boiler
Room thermostat with direct control of a
gas-fired floor-standing boiler
Room thermostat with direct control of a
heat pump (pre-controlled by manual
mixing valve)
Room thermostat with direct control of
hydronic floor heating system
F1 Thermal reset limit thermostat
F2 Safety limit thermostat
M1 Circulating pump
N1 Room thermostat
V1 2-port valve
V2 Mixing 3-port valve with
manual adjustment
V3 Magnetic valve
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Type summary
Product no. Stock no.
Operating
voltage
Control outputs
Suitable for
3-pos
ON/OFF
DC 0..10 V
RDD810KN/NF 2)
S55770-T336
AC 230 V
--
2 1)
--
Square conduit box
2)
1)
ON/OFF output with potential free input from AC 24…230 V
2)
Mounting frames are not included and must be ordered separately. See
“Accessories”
Ordering
• When ordering, indicate product number, SSN and name.
For example: RDD810KN/NF (S55770-T336) room thermostat
• A mounting frame must be ordered for RDD810KN/NF installation
(See “Accessories”)
• Order valve actuators separately.
Equipment combinations
Type of unit
Product no.
Data sheet
Cable temperature sensor or
changeover sensor
cable length 2.5 m
NTC (3 kΩ at 25 °C)
QAH11.1
d)
1840
Room temperature sensor
NTC (3 kΩ at 25 °C)
QAA32
1747
Cable temperature sensor,
cable length 4 m
NTC (3 kΩ at 25 °C)
QAP1030/UFH
1854
Electromotoric ON/OFF actuator
SFA21...
4863
Electromotoric ON/OFF valve and
actuator a)
MVI…/MXI…
4867
Zone valve actuators
a)
SUA…
4832
Thermal actuator
b)
STA23...
4884
Thermal actuator c)
STP23...
4884
Damper actuator
GDB..
4634
Damper actuator
GSD..
4603
Damper actuator
GQD..
4604
Rotary damper actuator
GXD..
4622
a)
only available in AP, UAE, SA and IN
b)
for radiator valve
c)
for small valves 2.5 mm
ON/OFF actuators
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d)
both QAH11.1 and QAP1030/UFH are for floor heating applications, such as
temperature limitation controls. QAP1030/UFH has a special head and 4 m long
that is more suitable for such application
Refer to data sheets of the actuators for the maximum number of parallel
operation.
Accessories
Designation
Product no. / SSN
Data sheet
Conduit box for RDD810KN/NF
ARG71 /
S55770-T137
N3009
Single mounting frame*), Ivory White
ARG800.1 /
S55770-T370
--
KNX Power supply 160 mA (Siemens BT LV)
5WG1 125-1AB02
--
KNX Power supply 320 mA (Siemens BT LV)
5WG1 125-1AB12
--
KNX Power supply 640 mA (Siemens BT LV)
5WG1 125-1AB22
--
*)
See the dimensions of mounting frame on page 14.
Note:
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Mechanical design
The thermostats consist of the following parts:
• Front panel with electronics, operating elements and built-in room temperature
sensor.
• Mounting base with power electronics .
• Mounting frame is an additional part to complete the installation for
RDD810KN/NF.
The rear of the mounting base contains the screw terminals.
Slide the front panel in the mounting base and snap on.
Operation and
settings
Display
STATUS and
OPERATION of the
thermostat
INFORMATION
1st Line:
temperature, values
of parameters
2nd Line
: parameter
numbers, time clock
ADJUSTMENT for temperature setpoint, operating modes and
settings (for example, Alarm, INFO, etc.)
SELECTION of
available INFO and
operating modes
Status symbols:
Key lock
Manual override
Alarm / Service reminder
Heating active
Scheduler via bus
Selection symbols:
Indoor temperature
Comfort mode
Outdoor temperature
Economy mode
Protection mode
Operational icons:
+
Increment, decrement OR selection
Selection OR move to next items
Temperature OR parameter values, and etc.
Time clock (12 / 24 hour), parameter number
OR password, and etc.
Setpoint mode (temperature only)
Operating mode
Setting mode
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Engineering notes
See the "Reference documentation", page 12, for information on how to engineer
the KNX bus (topology, bus repeaters, etc.) and how to select and dimension
connecting cables for supply voltage and field devices.
Mounting and installation
Mount the room thermostat on a conduit box. Do not mount on a wall in niches or
between bookshelves, behind curtains, above or near heat sources, or exposed to
direct solar radiation. Mount about 1.5 m above the floor.
Mounting / Dismounting
• Do not apply excessive force on screws! The deformation of the mounting
frame may lead to improper connections and oper a tio n of the unit.
• Mount the room thermostat on a clean, dry indoor place without direct airflow
from a heating / cooling device, and not exposed to drips or water.
• Before removing the front cover, disconnect the power supply.
Wiring
See the User Manual for the installation instructions enclosed with the thermostat.
• Comply with local regulations to wire, protection and earth the thermostat.
• The device has no internal fuse for supply lines to fan and actuators. To avoid
risk of fire and injury due to short-circuits, the AC 230 V mains supply line must
have a circuit breaker with a rated current of no more than 10 A.
• The wiring cross section used for power supply (L, N) and 230 V outputs
(Qxx - N) must be adapted to the preceding overload protection elements (max
10 A) under all circumstances. Comply under all circumstances with local
regulations.
• Properly size the cables to the thermostat and valve actuators for
AC 230 V mains voltage.
• Cables of SELV inputs X1-M / X2-M: Use cables with min 230 V insulation, as
the conduit box carries AC 230 V mains voltage.
• Inputs X1-M or X2-M of different units (e.g. window contact) may be connected
in parallel with an external switch. Consider overall maximum contact sensing
current for switch rating.
• KNX communication cables (input CE+ / CE-): Use cables with min 230 V
insulation, as the conduit box carries AC 230 V mains voltage.
• When a KNX bus power supply is connected on the line with communicating
thermostats and Synco controllers, the internal KNX power supply of the
Synco controllers must be switched off.
• No cables provided with a metal shield.
• Disconnect from supply before opening the cover.
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Commissioning notes
No DIP switch setting is required for RDD810KN... thermostats.
After power up, the wizard function guides users to configure the basic parameters
for normal operation according to the table below.
Touch / to advance / return to any parameter;
Touch + / - to change value.
LCD display Parameter Range Factory setting
User operating
mode profile
1: comfort > protection
2: comfort > economy >
protection
1
Selection of
°C or °F
0: °C
1: °F
0
Standard display
0: Room temperature
1: Setpoint
0
Display info line
(2nd line of LCD
display)
0: --- (No display)
3: Time of day (12h) via bus
4: Time of day (24h) via bus
0
Functionality of X1
0: --- No function
1: Ext / Return Temp (AI)
3: Window open detect (DI)
6: Fault input (DI)
7: Monitor input (Digital)
8: Monitor input (Temp)
10: Presence detection (DI)
3
Functionality of X2 1
Operating action
of X1
Normal Open (NO)
Normal Close (NC)
Normal Open
(NO)
Operating action
of X2
- End of wizard -
If more details are required about parameters, refer to basic documentation P3174.
To reload factory setting for all parameters, set parameter P71 to ON. Restart the
thermostat after reset, all LCD segments flash, indicating that the reset is correct.
3 seconds later, the thermostat is ready for commissioning by qualified HVAC staff.
Before power up
Wizard function
Reset
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RDD810KN… thermostats are for heating applications. Configure or changing
parameter settings during commissioning using one of the following tools:
− Local HMI
− Synco ACS
− ETS4
Connect the Synco ACS or ETS4 tools to the KNX bus cable at any point for
commissioning:
L
N
X1 M X2
RDD810KN..
3171A03
CE+ CE-
KNX
ETS4
RS232
Siemens
N148 /
UP146 /
UP152
ETS4 / ACS
Siemens
OCI700
or
OCI702....
Q11 Q14 Q12
ACS and ETS4 require an interface:
− RS232 KNX interface (such as Siemens N148 / UP146 / UP152)
− OCI700 USB-KNX interface
An external KNX bus power supply is required if an RDD810KN/NF is connected
directly to a tool (ACS or ETS4) via KNX interface.
Applications
Connect tool
Note:
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The thermostat's control parameters can be set to ensure optimum performance of
the entire system (refer to basic documentation P3174).
The parameters can be adjusted using
− Local HMI
− Synco ACS
− ETS4
For commissioning via local HMI, refer to user manual B3174... for setting the
passwords.
• Only heating sequence is available.
• Recalibrate the temperature sensor if the room temperature displayed on the
thermostat does not match the room temperature measured (after min. 1 hour of
operation). To do this, change parameter P05.
• We recommend to review heating setpoint and their ra nge limitation via
parameters P08…P11. If necessary, adjust them to achieve maximum comfort
and save energy.
The programming mode helps identify the thermostat in the KNX network during
commissioning.
Touch and hold
for more than 5 seconds t o act iv ate p rogr am ming mode, which
is indicated on the display with Pr09. Programming mode remains active until
thermostat identification is c om plete.
Assign device address (P81) via HMI, ACS or ETS4.
With device address set to 255, the communication is deactivated (no exchange of
process data).
Use ETS4 to assign the KNX group addresses of the RDD communication objects.
Each device has a unique KNX serial number inside the front panel. An additional
sticker with the same KNX serial number is enclosed in the packaging box. This
sticker is intended for installers for documentation purposes.
Disposal
The devices are considered electronics devices for disposal in terms of European
Directive 2012/19/EU and may not be disposed of as domestic waste.
• Dispose of the device via the channels provided for this purpose.
•
Comply with all local and currently applicable laws and regulations.
Control parameters
Control sequence
Calibrate sensor
Setpoint and range
limitation
Programming mode
Assign KNX device
address
Assign KNX group
addresses
KNX serial number
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Technical data
Power supply
Rated voltage AC 230 V
Overvoltage category
III Frequency
50/60 Hz
Power consumption
Max. 6.0 VA / 2.1 W
No internal fuse.
External preliminary protection with max C 10 A circuit breaker required in all cases.
Outputs
Control output Q11, Q12, Q14 (SPDT)
Rating Min, Max resistive (inductive)
AC 24…230 V
Min. 10 mA, Max. 5(2) A
No internal fuse.
External preliminary protection with max C 10 A circuit breakers in the supply line
(Q11) required in all cases.
Inputs
Multifunctional input X1-M/X2-M
Temperature sensor input:
Type
Temperature range
Cable length
Digital input:
Operating action
Contact sensing
Parallel connection of several thermostats
for one switch
Insulation against mains voltage (SELV)
See “Equipment combinations”
0...49 °C
Max. 80 m
Selectable (NO / NC)
SELV DC 0...5 V / Max. 5 m A
Max. 20 thermostats per
switch
4 kV, reinforced insulation
Function of inputs:
External temperature sensor, window contact,
presence detection, fault contact, monitoring input
Selectable
X1: P38
X2: P40
KNX bus Interface type KNX, TP1-64
(electrically isolated)
Bus current
5 mA
Bus topology: See KNX manual (Reference documentation, see below)
Operational data
Switching differential, adjustable
Heating mode (P30)
2 K (0.5...6K)
Setpoint setting and range
Comfort (P08)
Economy (P11)
Protection (P65)
21 °C (5...40 °C)
15 °C (OFF, 5...40 °C)
8 °C (OFF, 5...40 °C)
Multifunctional input X1/X2
Input X1 default value (P38)
Input X2 default value (P40)
Selectable 0, 1, 3, 6, 7, 8, 10
3 (Window contact)
1 (External temperature
sensor)
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C
Temperature calibration range
0…49 °C
< ± 0.5 K
± 3.0 K
Settings and display resolution
Setpoints
Current temperature value displayed
0.5 °C
0.5 °C
Caution
Caution
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Environmental
conditions
Operation
Climatic conditions
Temperature
Humidity
As per IEC 60721-3-3
Class 3K5
0...50 °C
<95 % r.h.
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
As per IEC 60721-3-2
Class 2K3
−25... 65 °C
<95 % r.h.
Class 2M2
Storage
Climatic conditions
Temperature
Humidity
As per IEC 60721-3-1
Class 1K3
−25... 65 °C
<95 % r.h.
Standards and
directives
EU Conformity (CE)
8000078258_xx*)
Electronic control type 2.B (micro-disconnection on
operation)
RCM conformity to EMC emission standard
AS/NZS 61000-6-3
Safety class
II as per EN 60730
Pollution class
Normal
Degree of protection of housing IP 30 as per EN 60529
Environmental
compatibility
The product environmental declaration E3174en contains data on environmentally
compatible product design and ass es sments (RoHS compliance, materials
composition, packaging, environmental benefit, disposal).
Eco design and
labelling directives
Based on EU Regulation 813/2013 (Eco design directive) and 811/2013 (Labelling
directive) concerning space heaters, combination heaters, the following class apply:
- Application with On/Off operation of a heater
Class I value 1%
General Connection terminals Solid wires or prepared
stranded wires
1 x 0.4…1.5 mm
2
or
2 x for KNX cables/sensor
Minimal wiring cross section on L, N, Qxx
Min 1.5 mm2
Housing front color
Ivory White
Weight without / with packaging
0.145 kg / 0.245 kg
*)
The documents can be downloaded from http://siemens.com/bt/download.
Reference
documentation
Handbook for Home and Building Control - Basic Principles
(http://www.knx.org/knx-en/training/books-documentation/knx-association-books/index.php)
Synco
CE1P3127 Communication via the KNX bus for Synco 700, 900 and RXB/RXL
Basic documentation
Desigo
CM1Y9775 Desigo RXB int egr ati on – S-mode
CM1Y9776 Desigo RXB / RXL integration – individual addressing
CM1Y9777 Third-party integration
CM1Y9778 Synco integration
CM1Y9779 Working with ETS
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Connection terminals
L X1 M
N
Q11 Q14 Q12
SELV
X2
3171
A01
CE+ CE
-
L, N Operating voltage AC 230 V
Q11, Q12 NC contact (for NO valves)
Q11, Q14 NO contact (for NC valves)
X1, X2 Multifunctional input for temperature sensor or potential-
free switch
Factory setting:
– X1 = Window contact
– X2 = External sensor
(function can be selected via parameter P38 / P40)
M Measuring neutral for sensor and switch
CE+ KNX data +
CE- KNX data -
Connection diagrams
N1 Room thermostat
V1 Valve actuator
Lx AC 24...230 V
S1, S2 Switch (keycard, window contact, presence detector,
etc.)
B1, B2 Temperature sensor (return air temperature,
external room temperature, changeover sensor, etc.)
CE+ KNX data +
CE- KNX data –
L
N
10 A
L
N
AC 230 V
X1
M
X2
N1
V1
5(2)A
Max.
B2
S2
B1
S1
3171A12
Q11 Q14 Q12
CE+ CE-
KNX
Lx
10 A
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Dimensions (mm)
RDD810KN/NF
for square conduit
boxes only
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ARG800.1 single
mounting frame for
RDD810KN/NF
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2016 Siemens Switzerland Ltd Subject to change
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