Siemens RDH100RF/SET User manual

Wireless room thermostat with LCD
RDH100RF/SET
Non-programmable, for heating systems
●2-position or PID control to switch on/off heating systems
●Large LCD display
●Minimum and maximum setpoint limitation
●RDH100RF, transmitter, battery powered
●RCR100/433, receiver, mains powered
A6V10954418_en--_h
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Use
The device comprises of 1 RDH100RF (transmitter) and 1 RCR100/433 (receiver), is used to
control the room temperature in heating systems.
Typical applications:
●Homes
●Residential buildings
●Schools
●Offices
The device can be used together with the following equipment:
●Thermal valves or zone valves
●Combi boilers
●Gas or oil burners
●Pumps
Functions
Temperature control
RDH100RF/SET offers both 2-position and PID intelligent learning temperature control,
configurable via parameter P01 (control behavior).
2-position control algorithm to switch on and off the heating system within a switching
differential (SD) as per the difference between setpoint setting and measured room
temperature.
PID intelligent learning control algorithm periodically switches on and off the heating system.
The period time (T) and pulse length (P) of the control signal (PWM) are determined by the
setpoint and the measured room temperature.
In general, PID control provides more comfort and is more energy efficient than 2-position
control.

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Control behavior (P01)
The factory setting for control is “PID slow”, ideal for most heating systems. Optimum control
can be selected if control does not provide the desired result:
2-position controller with 1 [K] switching hysteresis
●For systems with small capacity that appear slow
●For applications requiring extended runtimes or where frequent switching causes
problems
●For difficult control loops where hunting may result
Typical applications:
●Dry floor heating systems
●Heat pumps
●Electric heating with contactors
●2-position controller with 0.5 [K] switching hysteresis.
●For general control situations. Provides better comfort than 1 [K] switching hysteresis.
●Can also be used for difficult control situations.
PID control behavior for slow heating systems that require longer minimum On times and a
limited number of switching cycles per hour.
Typical applications:
●Wet floor heating systems, oil fired boilers
●Can also be used for all other types of heating applications. (Alternative setting)
Minimum switch on/off time
> 4 minutes
Minimum period
Approximately 12 minutes
PID control behavior for fast heating systems that tolerate a high number of switching cycles.
Typical applications:
●Electric heaters with current valve
●Gas boilers
●Fast thermal actuators
Minimum switch on/off time
> 1 minute
Minimum period
Approximately 6 minutes
WARNING
Do not use PID fast for oil boilers or electric mechanical actuators!
Backup
When removing the batteries, the setpoints and information required for operating mode
changeover are retained for max. 2 minutes.
2-position, 1 K
2-position, 0.5 K
PID slow
PID fast

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Commissioning notes
Parameter list
Parameter
Description
Factory setting
Setting range
Remark
P01
Control behavior
PID slow (4)
0 = 2P, 1.0 K
1 = 2P, 0.5 K
2 = PID fast
4 = PID slow
P02
Maximum
temperature range
30 °C
P03…30 °C
Limit of comfort
and economy
setpoint
P03
Minimum temperature
range
5 °C
5 °C…P02
Limit of comfort
and economy
setpoint
End
Exit parameter setting
Parameter setting
The parameter setting remains in non-volatile memory and is not erased when the battery is
removed. The reset function on the rear of the thermostat reloads the factory settings.
Parameter setting mode
1. Press LEARN on the rear for 5 seconds until “P01”
appears.
2. Press LEARN again and, the parameter value on the
second line flashes and is ready for adjustment.
3. Adjust the parameter using setting knob.
4. Press LEARN once to confirm the setting.
5. Rotate the setting knob clockwise to next parameter and
repeat steps 2 to 4.
6. Exit parameter setting mode by rotating the setting knob
clockwise to “End” and pressing LEARN once.
Note: The thermostat automatically exits parameter setting mode one minute after the last
action.

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Equipment combinations
Description
Product number
Data sheet *)
Electrothermal
actuator (for radiator
valves)
STA321
A6V12986007
Electrothermal
actuator (for small
valves 2.5mm)
STP321
A6V12986007
Electromotoric
actuator
SFA21..
4863
*) The documents can be downloaded from http://siemens.com/bt/download.
Display
The digital display shows the current room temperature and the comfort temperature
setpoint. When the heating output is active, the triangle symbol is displayed.
Ordering
When ordering, specify both name and product number, e.g. room temperature controller
RDH100RF/SET.
Order valves and actuators as separate items.
Mechanical design
The transmitter consists of 4 parts:
●Plastic housing with digital display containing the electronics, operating elements and
built-in room temperature sensor
●Baseplate (mounting base)
●Battery compartment
●Fold-out stand
The housing engages in the baseplate and snaps on. There is a reset button on the rear of
the transmitter.

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Elements
1
Display of the room temperature in
°C / °F
2
Indicates a request for heating
3
Temperature setting knob
4
Battery compartment
5
Comfort temperature setpoint
6
RF TEST
Indicates RF signal test
7
Indicates low battery power;
replace batteries
The receiver is located in a plastic housing with LEDs and buttons.

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The transmitter is located in a plastic housing. Two buttons are visible on the rear when
removing the baseplate.
OVERRIDE
Override allows for temporarily overriding the active value from the sender. Override
responds differently depending on the radio connection (normal or fault).
Example A: Normal connection between sender and receiver
Press the OVERRIDE button to overwrite the value for ca. 14 minutes. The value then
returns to the setpoint.
Example B: Faulty connection between sender and receiver
Press the OVERRIDE button to permanently override the value. The value returns to the
setpoint after the connection between sender and receiver works again.
RF LED
RF state
RF LED
Power up (first 5 seconds)
Flash RED
Power up (after 5 seconds)
RED
Press OVERRIDE switch
Flash RED + ORANGE (amber)
(4 seconds)
Learning period
No LED
Software reset
RED
RF receive
GREEN
No RF within last 25 minutes
RED
Manual override
(RF receive)
Flash ORANGE

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Relay LED
Relay state
Relay LED
From OUT to ON (first 5 seconds)
Flash ORANGE
ON
ORANGE
From ON to OFF (after 5 seconds)
Flash ORANGE
OFF
OFF
Notes
Mounting
When mounting the transmitter, attach the baseplate first. You need to mount the transmitter
on a flat wall. (For details, refer to the separate mounting instructions A6V10974421.)
The transmitter comes with a fold-out stand and may be used as a “mobile” device.
Mounting the receiver does not require a baseplate. Connect the electrical connections first
and then fit and secure the receiver in compliance with local regulations. (For details, refer to
the separate mounting instructions A6V10974421.)
EMI filter (e.g., KEILS EMI CW4L2-3-R) can be used to reduce EMI disturbance. (For details,
see Connection diagram [▶14].)
DANGER
Electric shock on directly touches of EMI filter
●Disconnect from power supply before connecting EMI filter.
●Make sure EMI filter is out of reach after installation.
If the reference room contains thermostatic radiator valves, set them to their fully open
position.
For commissioning, refer to the operating instructions A6V101035988.
Communication of the RDH100RF/SET (transmitter and receiver) is paired ex factory.
●The devices are suitable for wall mounting.
●Recommended height: 1.5 m above the floor.

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●Do not mount the devices in recesses, shelves, behind curtains or doors, or above or
near heat sources.
●Avoid direct solar radiation and drafts.
●Seal the conduit box or the installation tube if any, as air currents can affect sensor
readings.
●Adhere to allowed ambient conditions.
Change of batteries
If the battery symbol appears, the batteries are almost empty and must be replaced.
Reset
Simultaneously press the TEST and LEARN buttons on the rear of the transmitter to reset it.
Simultaneously press the OVERRIDE and LEARN buttons to reset the receiver. This resets
all individual settings to their default values.
Maintenance
The transmitter and receiver are maintenance-free except for the transmitter battery.
Disposal
This symbol or any other national label indicate that the product, its
packaging, and, where applicable, any batteries may not be disposed of as
domestic waste. Delete all personal data and dispose of the item(s) at
separate collection and recycling facilities in accordance with local and
national legislation.
For additional details, refer to Siemens information on disposal.
Instructions for the replacement of alkaline batteries
WARNING
Explosion due to fire or short-circuit, even with discharged batteries
Risk of injury due to flying parts
●Prevent the batteries from coming into contact with water.
●Do not recharge batteries.
●Do not damage or disassemble batteries.
●Do not heat batteries over 85°C.
WARNING
Leakage of electrolyte
Severe burns
●Handle damaged batteries only wearing suitable protective gloves.
●In case of contact with electrolyte, rinse eyes immediately with plenty of water. Consult
a doctor.
Observe the following:
●Use only a battery of the same type and from the same manufacturer as a replacement.
●Observe the polarities (+/-).
●The batteries must be new and undamaged.
●Do not mix new and used batteries.
●Store, transport and dispose of the batteries in compliance with local requirements,
regulations and laws. Also observe the instructions of the battery manufacturer.

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Product documentation
Topic
Title
Document ID:
Operating
Operating instructions
A6V101035988
Installation
Mounting instructions
A6V10974421
CE declaration
A6V101123354
Related documents such as CE declarations, etc., can be downloaded from the following
address: http://siemens.com/bt/download.
Technical data
Power supply
Operating voltage
DC 3 V (2 x 1.5 V AA alkaline batteries)
Battery life
>1 year (with AA alkaline batteries)
Sensor inputs
Internal thermistor
10 kΩ ± 1% at 25 °C
Radio frequency
Frequency band
ISM 433MHZ
Maximum radio-frequency power
4.19 dBm
Operational data
PID control:
Minimum period
Minimum pulse length
Slow
4 min
12 min
Fast
2 min
6 min
Setpoint setting range
5…30 °C
Factory setting comfort setpoint
20 °C

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Environmental conditions
Resolution of settings and displays
Setpoints
Actual value displays
0.5 °C
0.5 °C
Operation
Climatic conditions
Temperature
Humidity
IEC 60721-3-3
Class 3K5
0…+40 °C
<90% r.h.
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
IEC 60721-3-2
Class 2K3
-25…+60 °C
<95% r.h.
Class 2M2
Storage
Climatic conditions
Temperature
Humidity
IEC 60721-3-1
Class 1K3
-10…+60 °C
<90% r.h.
Standards, directives and approvals
EU conformity (CE)
A6V101123354 *)
RCM conformity to EMC emission standard
A6V101123355 *)
Safety class
III as per EN 60950-1
Pollution degree
2
Degree of protection of housing
IP20
Environmental compatibility
The product environmental declaration
(A6V101123359 *) contains data on
environmentally compatible product design
and assessments (RoHS compliance,
materials composition, packaging,
environmental benefit, disposal).
*) The documents can be downloaded from: http://siemens.com/bt/download.
Eco design and labeling directives
Based on EU Regulation 813/2013 (Eco design directive) and 811/2013
(Labeling directive) concerning space heaters, the following classes apply:
Application with On/Off
operation of a heator
Class I
Value 1%
PWM (TPI) room thermostat,
for use with On/Off output
heaters
Class IV
Value 2%

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General
Weight (including package)
RDH100RF/SE
475 g
Color of housing front
Signal-white RAL9003
Housing material
ABS (LCD lens:PC)
Receiver RCR100/433
General unit data
Operating voltage *)
AC 230 V +10/-15%
Power
<10 VA
Frequency
50...60 Hz
*EMI filter (e.g., KEILS EMI CW4L2-3-R) can be used to reduce EMI disturbance. See
Connection diagram [▶14].
Outputs
Switching capacity of relays
Voltage
Current
AC 24…250 V
8 (3) A
No internal fuse!
External preliminary protection with max. C 10 A circuit breaker required for all cases.
Switching outputs (LX, L1, L2)
Relay contacts
Switching voltage
Max. AC 250 V;
Min. AC 24 V
Switching current
Max. 8 A res., 3 A ind.
At AC 250 V
Min. 10 mA
Contact life at
AC 250 V
At 5 A res.
1 x 105cycles (guide value)
Insulating strength
Between relay contacts
and coil
AC 5,000 V
Between relay contacts
(same pole)
AC 1,000 V

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Electrical connections
Connections terminals (via baseplate)
For solid wires
For stranded wires
Screw terminals
2 x 1.5 mm2
1 x 2.5 mm2(min. 0.5 mm2)
Environmental conditions
Operation
Climatic conditions
Temperature
Humidity
IEC 60 721-3
Class 3K3
0…+45 °C
<85% r.h.
Storage and transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
IEC 60 721-3
Class 2K3
-25…+70 °C
<93% r.h.
Class 2M2
Standards, directives and approvals
EU conformity (CE)
A6V101123354
Safety class
II as per EN 60 730-1
Degree of pollution
2
Color
Unit front
Signal-white RAL 9003
Base
Gray RAL 7035
Dimensions
83x104x32 mm

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Connection diagram
L –N AC 230 V / Lx –Nx AC 24…250 V
L
Live, AC 230 V
Lx
Live, AC 24…250 V
L1
N.O. contact, AC 24…250 V /
8 (3) A
L2
N.C. contact, AC 24…250 V /
8 (3) A
PE
Protective ground
M1
Circulating pump
N
Neutral conductor
Nx
Neutral conductor
N2
Receiver RCR100/433
Y1
Actuating device

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Application examples
Wireless room temperature controller with
receiver control of a gas-fired wall-hung
boiler
Wireless room temperature controller with
receiver control of atmospheric gas burner
Wireless room temperature controller with
receiver control of a heating circuit pump
(precontrol by manual mixing valve)
F1
Thermal reset limit thermostat
N1
Room temperature controller
RDH100RF (Transmitter)
F2
Safety limit thermostat
N2
RCR100/433 (Receiver)
M1
Circulating pump
Y1
3-port valve with manual adjustment
Y2
Magnetic valve

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Dimensions
[mm]
Room temperature controller
Room temperature controller mounting plate

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Room temperature receiver with mounting plate
Product history
Index 1)
Date
Changes
≥C
June 2018
●Add new function min/max temperature limitation, selectable
control behavior and parameter settings.
Z, A
March 2017
First release.
1) Product index can be found next to the production date on the rear of the device
"YYMMDDX".

Issued by
Siemens Switzerland Ltd
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH-6300 Zug
[phone]
www.siemens.com/buildingtechnologies
© Siemens Switzerland Ltd, 2017
Technical specifications and availability subject to change without notice.
Document ID
A6V10954418_en--_h
Edition
2022-12-06