SIEMENS

SIEMENS RDD310/EH Flush-mount Room Thermostat Product Specifications Guide

SIEMENS RDD310/EH Flush-mount Room Thermostat

Key features

Key features of both types of thermostats:

  • Operating voltage AC 230 V
  • 2-position control with On/Off control output
  • Maximum load 16 A
  • Protection class IP31, suitable for installation in wet rooms
  • Input for cable temperature sensor NTC 3 k (QAP1030/UFH) for the floor (note: cable temperature sensor must be ordered separately)
  • Floor temperature limitation with cable temperature sensor
  • Operating modes: Comfort, Economy and Frost Protection
  • Minimum and maximum limitation of setpoint setting range
  • Backlit white LCD
  • Suitable for use with standard conduit boxes in Europe (CEE/VDE) and Asia-Pacific (min. depth 40 mm)

Additional feature of RDE410/EH:

  • Auto Timer with 8 programmable time switches

Use

RDD310/EH and RDE410/EH room thermostats are used to control the room temperature in…

  • single-family and holiday houses,
  • multi-family houses with individual heating systems.
    For control of the following pieces of equipment:
  • Specifically for electric floor heating systems, but also for…
    • thermal valves or zone valves,
    • gas or oil burners (boilers) (an additional relay must be used to connect a potential-free contact),
    • pumps,
    • radiators or connectors.

Functions

  • Room temperature control in connection with built-in or external sensor
  • Selection of operating mode via the operating mode button on the thermostat
  • Display of current room temperature or setpoint in C
  • The minimum and maximum limitation of setpoint setting range
  • Button lock (automatic or manually)
  • Floor temperature limitation with cable temperature sensor
  • Backlit white LCD
  • Reloading factory settings for commissioning and control parameters
  • Auto Timer: 8 programmable 7-day time switches to switch between Comfort and Economy mode (RDE410/EH only)

Temperature control

The thermostat acquires the room temperature with its built-in sensor and maintains the setpoint by delivering control commands. The switching differential is 1 K.
Function diagram

  • T: Room temperature
  • SDH Switching differential heating
  • W: Room temperature setpoint
  • Y1: Output signal for heating

Floor heating application

  • The factory setting for this function is “Off” and must be set to “On” if floor heating is used. This function is activated via parameter P38.
  • The installer must select the capacity of the heating system (in kW) via parameter P45 during commissioning.
  • The cable temperature sensor is connected to input X1, M and acquires the floor temperature. If the floor temperature exceeds the parameterized limit xx ºC (P38 = 1, P51 = xx ºC), the heating system is turned off until the floor temperature returns to a level below the parameterized limit. Typical applications are rooms (dry floor).
  • If the application does not require floor temperature limitation but instead uses the external sensor for room temperature display and control, the parameters will have to be set as follows: P38 = 1, P51 = Off. Typical applications are bathrooms (wet floor) where a constant floor temperature is required.
  • It is not recommended to have only a built-in room sensor for floor heating since in that case there is a potential risk of overheating.

Operating modes

The operating mode is selected via the operating mode button . The respective setpoint maintains the room temperature at the desired level. The following operating modes are available:

  • Comfort mode
    In Comfort mode, the thermostat maintains the setpoint which can be adjusted via the +/– buttons.
  • Economy mode
    Economy mode helps save energy. It is selected via operating mode button if parameter P02 is set accordingly.
  • Frost Protection mode
    In Frost Protection mode, the system is protected against frost (factory setting = 8 °C).
  • Auto Timer mode AUTO (only with RDE410/EH)
    In Auto Timer mode AUTO, the thermostat switches automatically between Comfort and Economy mode according to the 8 programmed time switches. The display shows Auto Timer mode symbol AUTO along with the symbol for the current operating mode (Comfort or Economy).

Setpoints

  • Comfort mode
    The Comfort setpoint is adjusted with the +/– buttons. Factory setting for the Comfort basic setpoint is 20 °C, which can be changed via parameter P08. The Comfort basic setpoint is used in conjunction with the “Temporary setpoint” function.
  • Setpoint limitation
    The setpoint setting range can be limited to a minimum (parameter P09) and maximum (parameter P10).
  • Temporary setpoint
    If “Temporary setpoint” is enabled via parameter P69, the setpoint adjusted via the +/– buttons is set back to the Comfort basic setpoint (parameter P08) when the operating mode changes.
  • Economy mode
    Control parameter P11 is used to adjust the Economy setpoint (factory setting = 16 °C).
  • Frost Protection mode
    Control parameter P65 is used to adjust the setpoint for Frost Protection mode (factory setting = 8 °C).
  • Caution
    If a setpoint is set to “Off”, the thermostat does not maintain the setpoint in the respective operating mode, which means no protective heating function, resulting in risk of frost.

Type summary

Product no. (ASN) Stock no. Features
RDD310/EH S55770-T296 Mains-powered AC 230 V
RDE410/EH S55770-T333 Mains-powered AC 230 V with Auto Timer
QAP1030/UFH S55770-S289 Cable temperature sensor NTC 3 k, cable length 4 m

Ordering
When ordering, please indicate the product no., stock no. and description. Example:

Product no. (ASN) Stock no. Description
RDD310/EH S55770-T296 Room thermostat

The cable temperature sensors, electric floor mat, valves and actuators must be ordered separately.

Equipment combinations

Description Product no. Data Sheet
Cable temperature sensor, cable length 4 m QAP1030/UFH 1854
Electromotor actuators with On/Off valve (only available in AP, UAE, SA and IN) MVI../MXI.. A6V11251892
Electromotor On/Off actuators SFA21.. 4863
Thermal actuators (for radiator valves) STA23.. 4884
Thermal actuators (for small valves 2.5 mm) STP23.. 4884
Zone valve actuators (only available in AP, UAE, SA and IN) SUA21.. 4830

Mechanical design

The room thermostat consists of 2 parts:

  • Front panel which accommodates the electronics, the operating elements and the built-in room temperature sensor
  • Mounting base with power electronics

The base fits on the conduit box. The front panel slides in the mounting base and snaps on.

RDD310/EH

  1. Operating mode button/Frost Protection
  2. Button for adjustment of setpoint and control parameters

RDE410/EH

  1. Operating mode button
  2. Button for adjustment of setpoints, control parameters, and time of day
  3. Button for Auto Timer program
  4. Button for Frost Protection
  5. Button for setting the time of day and the weekday
  6. Button for confirmation

Display

The digital display shows the acquired room temperature or the setpoint for the current operating mode, selectable via parameter P06. The factory setting displays the current room temperature.

  1. Operating mode:
    • Frost Protection
    • AUTO Auto Timer
    • Comfort
    • Economy
  2. Room temperature, setpoints, and control parameters
    • The symbol for display of the current room temperature
  3. Heating On
  4. The current time of day *)
  5. Weekday 1…7 *)
    1 = Monday / 7 = Sunday
  6. Button lock active

Mounting and installation notes

Mount the room thermostat on a recessed rectangular conduit box. Do not mount it in niches or bookshelves, not behind curtains, not above or near heat sources, and not exposed to direct solar radiation. Mount it about 1.5 m above the floor.

Wiring

See Mounting Instructions CB1M1440xx enclosed with the thermostat.

  • Ensure that wiring, protection, and earthing comply with local regulations
  • Correctly size the cables to the thermostat and the floor heating system
  • If the thermostat cannot accommodate all cables, power must be fed to the system via an external terminal block
  • The AC 230 V mains supply line must have a circuit breaker with a rated current of no more than 16 A
  • Disconnect from the power supply before removing the unit from the wall
  • External inputs X1, M may carry mains potential. The sensor cable must be carefully installed before applying power to the thermostat

Commissioning notes

  • Floor heating system
    It is mandatory to select the approximate load of the floor heating system via parameter P45 during commissioning. If not sure, the supplier of the floor heating system should be consulted
  • Floor temperature limitation
    For the limitation of the floor temperature via parameter P51, contact the floor supplier. Be aware that the floor temperature is acquired where the sensor head is located
  • Sensor calibration
    If the temperature shown on the display does not agree with the room temperature effectively measured (after at least one hour of operation), the temperature sensor can be recalibrated. For that purpose, adjust parameter P05
  • Setpoint and setting range limitation
    We recommend reviewing the setpoints and the setpoint setting range (parameters P08…P11) and changing them as needed to achieve maximum comfort and to save energy
  • Resetting parameters
    The factory setting for the control parameters can be reloaded via parameter P71 by changing the value to “On” and confirming by pressing buttons + and – simultaneously. The display shows “888” during reloading

After power is applied, the thermostat carries out a reset during which all LCD segments flash, indicating that the reset was correctly made. After the reset, which takes about 3 seconds, the thermostat is ready for commissioning by qualified HVAC personnel. The control parameters of the thermostat can be set to ensure the optimum performance of the entire system (see below).

Control parameters

# Parameter Factory setting Setting range
Service level
P02 Selection of operating mode via the operating mode button 1 = Comfort – Frost Protection RDD310/EH: 1 = Comfort – Frost Protection
2 = Comfort – Economy – Frost Protection

RDE410/EH: 1 = Auto-Comfort – Frost Protection
2 = Auto – Comfort – Economy – Frost
Protection

P05 Temperature sensor calibration 0.0 °C –3…3 °C
P06 Standard temperature display 0 = Room temperature 0 = Room temperature 1 =Setpoint
P08 Comfort basic setpoint 20 °C 5…40 °C
P09 Min. setpoint limitation in Comfort mode (WminComf) 5 °C 5…40 °C
P10 Max. setpoint limitation in Comfort mode (WmaxComf) 35 °C 5…40 °C
P11 Heating setpoint in Economy mode 16 °C Off, 5…18 °C
P14 Button lock (press the operating mode button  for 3 seconds to lock or unlock) 0 = Disabled 0 = Disabled 1 =
Auto-lock
2 = Manual lock
Expert level
P30 Switching differential in heating mode 1 K 0.5…6 K
P38 External input 0 0 = No input

1 = External sensor input

P45 Heating system load in kW 2.8 kW 0…3.6 kW
P51 Floor heating temperature limit Off Off, 10…60 °C
P65 The setpoint of heating in Frost Protection mode (WheatStb) 8 °C Off, 5…18 °C
P69 Temporary setpoint in Comfort mode Off Off =       Disabled
On =       Enabled
P71 Reloading factory settings Set the value to “On” and confirm by pressing buttons + and – Off Off =       Idle
On =       Reset
Diagnostics and test
d02 Status X1 Diagnostics 0…xx °C = Measured temperature
d07 Software version information No adjustment Ux.x

Parameter settings

Parameter settings at service and expert levels:
The parameters are divided into “Service level” and “Expert level”. The parameter setting mode can be entered as follows: Set the thermostat to “Off/Frost Protection”.

Service level only (P02…P14)
Press buttons + and – simultaneously for 3 seconds. Release them and, within 2 seconds, press button + for 7 seconds. Parameters P02…P14 can now be adjusted (service level)

Expert level plus service level (all parameters P02…P71)
Press buttons + and – simultaneously for 3 seconds. Release them and, within 2 seconds, press the button – for 7 seconds. Parameters P02…P71 can now be adjusted (expert level)

In parameter setting mode, the parameters can be readjusted as follows:

  1. Select the required parameter by repeatedly pressing the button + or –.
  2. When pressing buttons + and – simultaneously, the current value of the selected parameter starts to flash; change it by repeatedly pressing button + or –.
  3. When you again press buttons + and – simultaneously, the next parameter is displayed.
  4. Repeat steps 1 to 3 to display and change additional parameters.
  5. At the service or expert level: 10 seconds after the last display or setting, all changes are stored and the thermostat will leave parameter setting mode. At the expert level: Press + or – until “End” is displayed. Then, press + and – simultaneously to save the change and exit parameter setting mode.

Disposal
The device is considered an electronic device for disposal in accordance with European Guidelines and may not be disposed of as domestic garbage.

  • Dispose of the device through channels provided for this purpose.
  • Comply with all local and currently applicable laws and regulations.

Technical data

Power supply Operating voltage AC 230 V +10/-15%
Frequency 50/60 Hz
Power consumption Max. 4 VA
Outputs Control output Y1-N1 (NO)
Rating
AC 230 V

Max. 16 (8) A

External protection for incoming cable Circuit breaker

Circuit breaker tripping characteristic

Max. 16 A

Type B, C, or D to EN 60898 and EN 60947

Inputs External sensor input (X1-M) Type
Temperature range
Cable length
NTC 3 k

0…70 °C

Max. 80 m

Operating data Switching differential (adjustable)

Heating mode                                           (P30)

1 K (0.5…6 K)

Setpoint setting and range

Comfort mode                                 (P08)

Economy mode                               (P11)

Frost Protection                               (P65)

20 °C (5…40 °C)

16 °C (Off, 5…18 °C)

8 °C (Off, 5…18 °C)

Floor temperature limitation setting range        (P51) Factory setting                                         (P38) Off and 10…60 °C

Off (limitation function not active)

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

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…60 °C

< 95% r.h.

Class 2M2

Storage
Climatic conditions
Temperature Humidity
As per IEC 60721-3-1
Class 1K3
– 25…60 °C < 95% r.h.
Standards and directives EU Conformity (CE) CE1T1440xx*)
RCM conformity CE1T1440en_C1*)
Protection class II as per EN 60730-1
Pollution class II as per EN 60730-1
Degree of protection of housing IP31 as per EN 60529
Environmental compatibility The product environmental declaration CE1E1440en*) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal).
Eco-design and labeling directives Based on EU Regulation 813/2013 (Eco design directive) and 811/2013 (Labelling directive) concerning space heaters, and combination heaters, the following classes apply:
Application with On/Off operation of a heater Class, I           value 1%
General Connection terminals Solid wires 1 x 2.5 mm2
Weight 0.149 kg
Color of housing front RAL 9003 white

The documents can be downloaded from http://siemens.com/bt/download.
The documents can be downloaded from http://siemens.com/bt/download.

Connection diagrams

Application examples

Dimensions (mm)

Remarks

  • Heating:
    Because of the unavoidable self-heating effects of the electrical current, and loads of more than 10 Amperes connected to the unit can influence the control behavior and temperature accuracy in a negative way. So since this is an electric floor heating product, therefore it is always a must to use an external floor temperature sensor.

Issued by:
Siemens Switzerland Ltd
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH-6300 Zug
Tel. +41 58 724 2424
www.siemens.com/buildingtechnologies
© Siemens Switzerland Ltd, 2013 – 2021 Technical specifications and availability are subject to change without notice.

Reference:

Download manuals:

SIEMENS RDD310EH Flush-mount room thermostat Product Specifications Guide

Other manuals:

SIEMENS RDD310/EH Flush-mount room thermostat Operating Instruction

SIEMENS RDD310/EH Flush-mount Room Thermostat Product Specifications Guide

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