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Room thermostats with KNX communications
RDG100KN, RDG160KN
Basic Documentation
Edition: 3.2
CE1P3191en
2014-05-23
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Contents
About this document .............................................................................. 4
Document use / request to the reader ...................................................... 5
Target audience, prerequisites .................................................................. 6
Equipment combinations ......................................................................... 11
Different ways to influence the operating mode ...................................... 15
Communication examples ....................................................................... 19
Room temperature setpoints ................................................................... 21
Setting and adjusting setpoints ............................................................... 23
Applications for fan coil systems ............................................................. 25
Applications for Universal systems ......................................................... 26
Applications for heat pump systems (RDG160KN) ................................. 27
Sequences overview (setting via parameter P01) .................................. 32
2-pipe fan coil unit with electric heater .................................................... 36
2-pipe fan coil unit with radiator or floor heating ..................................... 38
4-pipe fan coil unit with electric heater (RDG100KN) ............................. 42
2-pipe / 2-stage heating or cooling .......................................................... 44
Chilled / heated ceiling and radiator applications ................................... 46
Compressor applications (RDG160KN) .................................................. 46
Setpoints and sequences ........................................................................ 47
Multifunctional input, digital input ............................................................ 58
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KNX communications .............................................................................. 60
Zone addressing in LTE mode (in conjunction with Synco) .................... 61
Example of heating and cooling demand zone ....................................... 63
Send heartbeat and receive timeout ....................................................... 64
Heating and cooling demand .................................................................. 64
Communication objects (S-mode) ........................................................... 66
Description of communication objects .................................................... 67
Communication objects (LTE-mode) ....................................................... 69
Parameter setting via local HMI .............................................................. 70
Parameter setting / download via tool ..................................................... 71
Parameters of the "Service level" ........................................................... 72
Parameters of the "Expert level with diagnostics and test" ................... 73
Supported KNX tools ............................................................................ 82
Parameter settings in ETS ...................................................................... 82
Parameter settings in ACS ...................................................................... 83
Operation and monitoring with ACS ........................................................ 84
Operation and monitoring with OZW772 ................................................ 89
Operation and monitoring with RMZ792 ................................................. 89
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Contents
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1. About this document
Edition Date
3.2
3.1
3.1
3.0
2.0
March 2014
Sept 2013
March 2013
January 2013
June 2011
1.1 Revision history
Changes
• 2-position On/Off (only partially)
• Update Equipment Combination
• Protection via circuit breaker
• Add eu.bac certification
• Update section Standards and Directives
• Update C-tick
• DC 0…10 V actuators
• Various corrections
• Various corrections
• Amendments for RDG160KN
• Various corrections
• Amendments for new Software V1.20
• Various corrections
First edition
Section Pages
8
8
8
Various
2.4
4.1, 6.2, 8
various various various various
1.0 07 Jun 2010
1.2 Reference documents
Ref Doc No. Description Subject
Room thermostats with KNX [1] CE1N3191 Data Sheet communications, [2] CE1B3191 Operating Instructions
RDG100KN
KNX Manual
[3]
[4]
CE1M3191 Mounting Instructions
Handbook for Home and Building Control – Basic Principles
Synco and KNX (see www.siemens.com/synco )
( http://www.knx.org/knx-en/training/books-documentation/knx-associationbooks/index.php
)
[5] CE1N3127 KNX bus, Data Sheet
[6] CE1P3127 Communication via the KNX bus for Synco 700, 900 and
RXB/RXL, Basic Documentation
[7] XLS template Planning and commissioning protocol, in HIT communication Synco 700
Desigo engineering documents
[8] CE1N3121 RMB395 central control unit, Data Sheet
[9] CE1Y3110 KNX S-mode data points
[10] -- Product data for ETS
[11] CE1J3110 ETS product data compatibility list
[12] 0-92168en Synco Application Manual
[13] CM1Y9775 Desigo RXB integration – S-mode
[14] CM1Y9776 Desigo RXB / RXL integration – Individual Addressing
[15] CM1Y9777 Third-party integration
[16] CM1Y9778 Synco integration
[17] CM1Y9779 Working with ETS
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1.3 Before you start
1.3.1 Copyright
This document may be duplicated and distributed only with the express permission of Siemens, and may be passed only to authorized persons or companies with the required technical knowledge.
1.3.2 Quality assurance
This document was prepared with great care.
• The contents of this document is checked at regular intervals
• Any corrections necessary are included in subsequent versions
• Documents are automatically amended as a consequence of modifications and corrections to the products described
Please make sure that you are aware of the latest document revision date.
If you find lack of clarity while using this document, or if you have any criticisms or suggestions, please contact the Product Manager in your nearest branch office.
The addresses of the Siemens Regional Companies are available at www.buildingtechnologies.siemens.com
.
1.3.3 Document use / request to the reader
Before using our products, it is important that you read the documents supplied with or ordered at the same time as the products (equipment, applications, tools, etc.) carefully and in full.
We assume that persons using our products and documents are authorized and trained appropriately and have the technical knowledge required to use our products as intended.
More information on the products and applications is available:
• On the intranet (Siemens employees only) at https://workspace.sbt.siemens.com/content/00001123/default.aspx
• From the Siemens branch office near you www.buildingtechnologies.siemens.com
or from your system supplier
• From the support team at headquarters [email protected]
if there is no local point of contact
Siemens assumes no liability to the extent allowed under the law for any losses resulting from a failure to comply with the aforementioned points or for the improper compliance of the same.
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ETS
ACS
STOP
Note!
KNX
R
1.4 Target audience, prerequisites
This document assumes that users of the RDG KNX thermostats are familiar with the ETS and/or Synco ACS tools and able to use them.
It also presupposes that these users are aware of the specific conditions associated with KNX.
In most countries, specific KNX know-how is conveyed through training centers certified by the KNX Association (see www.knx.org/ ).
For reference documentation, see section 1.2.
1.5 Glossary
The inputs, outputs and parameters of an application can be influenced in various ways. These are identified by the following symbols in this document:
Parameters identified by this symbol are set using ETS.
Parameters identified by this symbol are set using the ACS tool.
Setting RDG KNX parameters is only supported by the following tool versions:
– ETS3f or higher
– ACS version 5.11 or higher
Inputs and outputs identified by this symbol communicate with other KNX devices.
They are called communication objects (CO).
The communication objects of the RDG KNX thermostats work partly in S-mode, partly in LTE mode, and partly in both. These objects are described accordingly.
A list of the parameters is shown in section 3.12.
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2. Summary
2.1 Types
Product no. Stock no. Features
Operating voltage
Number of control outputs
Fan
RDG100KN
RDG160KN
S55770-T163
S55770-T297
AC 230 V
AC 24 V
On/Off PWM 3-pos. DC 3-speed DC
3
1)
2
1)
2
1)
2
2)
2
2)
2 3)
1) Selectable: On/Off, PWM or 3-position (triac outputs)
2) Either On/Off or DC control signal
3) 3-speed fan selectable only with DC outputs
2.2 Functions
Use
Backlit
LCD
Fan coil units via On/Off or modulating / DC control outputs:
• 2-pipe system
• 2-pipe system with electric heater
• 2-pipe system and radiator / floor heating
• 4-pipe system
• 4-pipe system with electric heater (RDG100KN)
• 2-stage heating or cooling system
Chilled / heated ceilings (or radiators) via On/Off or modulating / DC control outputs:
• Chilled / heated ceiling
• Chilled / heated ceiling with electric heater
• Chilled / heated ceiling and radiator / floor heating
• Chilled ceiling and radiator / floor heating
• Chilled / heated ceiling, 2-stage cooling or heating
Compressor application via On/Off control outputs (RDG160KN)
• Heating or cooling, compressors in DX-type equipment
• Heating or cooling, compressors in DX-type equipment with electric heater
• Heating AND cooling, compressors in DX-type equipment
• 2-stage heating or cooling, compressors in DX-type equipment
The room thermostats are delivered with a fixed set of applications.
The relevant application is selected and activated during commissioning using one of the following tools:
• Synco ACS
• ETS
• Local DIP switch and HMI
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Features
Functions
• Operating modes: Comfort, Economy and Protection
• Automatic or manual heating / cooling changeover
• Backlit display
RDG100KN:
• On/Off, PWM or 3-position control outputs (triac)
• Output for 3-speed or 1-speed fan
• AC 230 V operating voltage
RDG160KN:
• DC 0...10 V or On/Off control outputs for actuators
• DC 0...10 V or relay outputs for fan (ECM or 1 / 3 speed)
• AC 24 V operating voltage
• Room temperature control via built-in temperature sensor or external room temperature / return air temperature sensor
• Changeover between heating and cooling mode (automatic via local sensor or bus, or manually)
• Selection of applications via DIP switches or commissioning tool (ACS, ETS).
• Parameters download with commissioning too (ACS, ETS)
• Select operating mode via operating mode button on the thermostat
• Temporary Comfort mode extension
• 1- or 3-speed, or DC 0...10 V fan control (automatically or manually)
• Display of current room temperature or setpoint in °C and/or °F
• Minimum and maximum limitation of room temperature setpoint
• Button lock (automatically or manually)
• 3 multifunctional inputs, freely selectable for:
– Operating mode switchover contact (keycard, window contact, etc.)
– Sensor for automatic heating / cooling changeover
– External room temperature or return air temperature sensor
– Dew point sensor
– Electric heater enable
– Fault input
– Monitor input for temperature sensor or switch state
– Supply air temperature sensor (RDG160KN)
• Advanced fan control function, e.g. fan kick, fan start delay, selectable fan operation (enable, disable or depending on heating or cooling mode)
• "Purge" function together with 2-port valve in a 2-pipe changeover system
• Reminder to clean fan filters (adjustable with P62)
• Floor heating temperature limitation
• Minimum and maximum supply air temperature limitation (RDG160KN)
• Reload factory settings for commissioning and control parameters
• KNX bus (terminals CE+ and CE-) for communication with Synco or KNX compatible devices
• Display of outside temperature or time of day via KNX bus
• Time scheduling and central control of setpoints via KNX bus
• With a Synco RMB795 controller, the energy demand signal of the thermostat is used to optimize energy supply
• Selectable relay function for switching external equipment (RDG160KN)
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Synco 700
Synco living
2.3 Integration via KNX bus
The RDG room thermostats can be integrated as follows:
• Integration into Synco 700 system via LTE mode (easy engineering)
• Integration into Synco living via group addressing (ETS)
• Integration into Desigo via group addressing (ETS) or individual addressing
• Integration into third-party systems via group addressing (ETS)
The following KNX functions are available:
• Central time program and setpoints, e.g. when using the RMB795 central control unit
• Outside temperature or time of day via bus displayed on thermostat
• Remote operation and monitoring, e.g. using the RMZ792 bus operator unit
• Remote operation and monitoring with web browser using the OZW772 web server
• Maximum energy efficiency due to exchange of relevant energy information, e.g. with Synco 700 controllers (e.g. heating demand, cooling demand)
• Alarming, e.g. external fault contact, condensation, clean filter, etc.
• Monitoring input for temperature sensor or switch
Engineering and commissioning can be done using…
– local DIP switches / HMI
– Synco ACS
– ETS
The RDG room thermostats are especially tailored for integration into the Synco
700 system and operate together in LTE mode. This extends the field of use of
Synco for individual room control in conjunction with fan coil units, VAV, chilled ceilings and radiators.
Thanks to S-mode extension to the QAX9x3 central apartment unit, communicating room thermostats can be easily integrated into Synco living systems. Using the
S-mode data points of the central apartment unit, additional room information can be exchanged with the room thermostat via KNX TP1 (RF function is not available on the room thermostats). To make the integration, the ETS engineering tool is required.
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Synco topology
Desigo and third-party systems
Legend: Synco 700 Building automation and control system (BACS)
Synco living Room automation and control system
RDG..., RDF…, RDU… Room thermostats
OZW772 Web server
RMZ792
QAW...
ACS
Bus operator unit
Room unit
Service tool using OCI700.1 (OCI700.1 is delivered
RXB, RXL
QAX
The RDG KNX devices can be integrated into the Siemens building automation and control systems (BACS) Desigo / Apogee or into 3rd-party systems.
For integration, either S-mode (group addressing) or individual addressing can be used. with a service cable which can be plugged into the service connector on a Synco controller)
Room controllers
Room unit for RXB / RXL room controllers
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On / off actuators
On/Off and PWM actuators *)
3-position actuators
DC 0…10 V actuators
2.4 Equipment combinations
Description
Cable temperature or changeover sensor
Room temperature sensor
Condensation motion
Electromotoric On/Off actuator
Electromotoric On/Off valve and actuator
(only available in AP, UAE, SA and IN)
Zone valve actuator
(only available in AP, UAE, SA and IN)
Thermal actuator (for radiator valves)
AC 230 V, NO
Thermal actuator (for radiator valves)
AC 24 V, NO
Thermal actuator AC 230 V
(for small valves 2.5 mm), NC
Thermal actuator AC 24 V
(for small valves 2.5 mm), NC
Electrical actuator, 3-position
(for radiator valves)
Electrical actuator, 3-position
(for 2- and 3-port valves / V…P45)
Electrical actuator, 3-position
(for small valves 2.5 mm)
Electrical actuator, 3-position
(for small valves 5.5 mm)
Electrical actuator, 3-position
(for small valve 5 mm)
Electromotoric actuator, 3-position
(for valves 5.5 mm)
Electrical actuator, DC 0...10 V
(for radiator valves)
Electrical actuator, DC 0...10 V
(for 2- and 3-port valves / V…P45)
Electrical actuator, DC 0...10 V
(for small valves 2.5 mm)
Electrical actuator, DC 0...10 V
(for small valves 5.5 mm)
Electrical actuator, DC 0...10 V
(for CombiValves VPI45)
Product no.
QAH11.1
QAA32
QXA2601 /
QXA2602 /
QXA2603 /
QXA2604
SFA21...
Data sheet
1840
1747
3302
4863
MVI… / MXI… 4867
4832 SUA…
STA23... *)
STA73... *)
STP23... *)
STP73... *)
SSA31...
SSC31
SSP31…
4884 *)
4884 *)
4884 *)
4884 *)
4893
4895
4864
SSB31...
SSD31...
SQS35…
SSA61...
SSC61…
SSP61…
SSB61...
SSD61...
4891
4861
4573
4893
4895
4864
4891
4861
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Note:
Electromotoric actuator, DC 0...10 V
(for valves 5.5 mm)
Electrothermal actuator,
AC 24 V, NC, DC 0…10 V, 1 m
Electrothermal actuator,
AC 24 V, NO, DC 0…10 V, 1 m
SQS65…
STA63
STP63
4573
4884
4884
*) Note: With PWM control, it is not possible to ensure exact parallel running of 2 or more thermal actuators.
If several fan coil systems are controlled by the same room thermostat, preference should be given to motorized actuators with On/Off or 3-position control
For the parallel operation of the actuators, refer to information in the data sheets of the selected actuators and to this list, depending on which value is lower:
Maximum number of actuators in parallel on the RDG100KN
• max 6 SS…31… actuators (3-pos)
• max 4 ST…23.. if used with On/Off control signal
• max 10 SFA.., SUA.., MVI.., MXI.. On/Off actuators
• Parallel operation of SQS35 is NOT possible
Maximum number of actuators in parallel on the RDG160KN
• max 10 SS…61.. actuators (DC)
• max 10 ST..23/63/73... actuators (DC or On/Off)
• max 10 SFA.., SUA.., MVI.., MXI … On/Off actuators
• max 10 SQS65 actuators (DC)
2.5 Accessories
Description
KNX power supply 160 mA (Siemens BT LV)
KNX power supply 320 mA (Siemens BT LV)
KNX power supply 640 mA (Siemens BT LV)
Product no /
Stock no.
5WG1 125-1AB02
5WG1 125-1AB12
5WG1 125-1AB22
Data sheet
--
--
--
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General note:
Parameters
Temperature control
Display
KNX
R
Room temperature
/
Concurrent display of
°C and °F
KNX
R
Outside temperature via bus
KNX
R
Time of day via bus
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3. Functions
3.1 Temperature control
Setting of the control parameters (P01, etc., mentioned throughout the document)
The thermostat acquires the room temperature via built-in sensor, external room temperature sensor (QAA32), or external return air temperature sensor (QAH11.1), and maintains the setpoint by delivering actuator control commands to heating and/or cooling equipment. The following control outputs are available:
• On/Off control (2-position)
• Modulating PI/P control with PWM output
• Modulating PI/P control with 3-position control output
• Modulating PI/P control with DC 0...10 V control output
The switching differential or proportional band is 2 K for heating mode and 1 K for cooling mode (adjustable via parameters P30 and P31).
The integral action time for modulating PI control is adjustable via parameter P35
(factory setting 5 min on RDG100KN / 45 min on RDG160KN).
The display shows the acquired room temperature or the Comfort setpoint, selectable via parameter P06. The factory setting displays the current room temperature.
Use parameter P04 to display the room temperature or setpoint in °F rather than
°C as needed.
The acquired room temperature (internal or external sensor) is also available as information on the bus.
• With automatic changeover or continuous heating / cooling, symbols / indicate that the system currently heats or cools (heating or cooling output is activated).
• With manual changeover (P01 = 2), symbols /
indicate that the system currently operates in heating or cooling mode. Thus, the symbols are displayed even when the thermostat operates in the neutral zone.
Symbols / indicate that the system currently heats or cools (heating or cooling output is activated).
Concurrent display of the current temperature or setpoint in °C and °F (parameter
P07 = 1) is possible on the thermostats.
The outside temperature can be displayed on the room thermostat by setting parameter P07 = 2. This temperature value has only information character.
In LTE mode, the outside temperature can only be received on outside temperature zone 31. RDG100KN SW version < 1.20: outside temperature zone 1.
In S-mode, the corresponding communication object needs to be bound with a
KNX sensor device.
Time of day via bus can be displayed on the room thermostat by setting parameter
P07 = 3 or 4. The display format is either in 12- or in 24-hour format.
The information can be received from a Synco controller with time master functionality or any other KNX device if the corresponding communication object is bound.
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KNX
R
Room operating mode:
State
Auto Timer
Comfort
Economy
KNX
R
Room operating mode:
Window state
Protection
Note
Note:
When an application program is downloaded to the Synco devices via ETS, the correct group addresses need to be downloaded as well, in order to display the time of day on the room thermostat (see Synco Knowledge Base - KB771).
3.2 Operating modes
The thermostat's operating mode can be influenced in different ways (see below).
Specific heating and cooling setpoints are assigned to each operating mode.
The thermostat sends the effective room operating mode on the bus.
The following operating modes are available:
In Auto Timer mode the room operating mode is commanded via bus.
Auto Timer is replaced by Comfort when no time schedule via bus is present
In Comfort mode, the thermostat maintains the Comfort setpoint. This setpoint can be defined via parameters P8, P9 and P10.
It can be locally adjusted via the rotary knob or via bus.
In Comfort mode, the fan can be set to automatic or manual fan speed: Low, medium or high.
The setpoints (less heating and cooling than in Comfort mode) can be defined via parameters P11 and P12.
The thermostat switches to Economy mode when...
– the operating mode button is pressed (only possible if parameter P02 is set to 2)
– Economy is sent via bus
– an operating mode switchover contact (e.g. keycard contact presence detector, window contact) is active
The contact can be connected to digital input D1 or multifunctional input X1, X2
Set parameter P38 / P40 / P42 to 3 (P02 is irrelevant) *)
– "Window state" is sent via bus, e.g. from a KNX switch or a KNX presence detector (P02 is irrelevant) *)
*) Operating mode switchover: Only one input source must be used, either local input X1/X2/D1or KNX bus.
User operations are ineffective and "OFF" is displayed if the operating mode switchover contact is active, or if "Window state" is sent via bus.
In Protection mode, the system is...
– protected against frost (factory setting 8 °C, can be disabled or changed via
P65)
– protected against overheating (factory setting OFF, can be enabled or changed via P66)
No other operating mode can be selected locally if Protection mode is commanded from time schedule via bus (e.g. from RMB795). and are displayed.
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3.2.1 Different ways to influence the operating mode
Source for change of operating mode
ACS
Source
Local operation via left button
Bus command
KNX
R
Room op. mode
The operating mode can be influenced by different interventions.
The source of the effective room operating mode state can be monitored using the
"Cause" diagnostic data point in the ACS tool, operator unit RMZ792 or web server
OZW772 / 775.
Description
• Operating mode is not Auto Timer
Value of DP "Cause"
Room operating mode selector
• No time schedule via bus
(preselection)
• Temporary Comfort extension is active
"Timer" function
• Operating mode switchover contact
• "Window state" sent via bus
• Time schedule available via bus
Room operating mode contact
Room operating mode contact
Time switch
local operating mode is set to
Auto Timer
• Time schedule sends Protection mode via bus
operating mode cannot be changed locally
Priority of operating mode interventions
The following table shows the priorities of different interventions.
A lower number means a higher priority.
Priority Description
Commissioning
Remark
In parameter setting mode (highest priority), you can always command an operating mode independent of all other settings or intervention via bus and local input.
Protection mode via bus from time schedule
Protection mode, sent by a time schedule, has priority 2.
It cannot be overridden by the user nor by an operating mode switchover contact.
Operating mode switchover contact
"Window state" via bus
If the contact is closed, the operating mode changes to
Economy. This overrides the operating mode on the thermostat.
"Window state" sent via bus has the same effect as the operating mode switchover contact.
Note: Only one input source must be used, either local input
X1/X2/D1or KNX bus.
Operating mode button The user can switch the operating mode using the operating mode button.
Operating mode via bus The operating mode can be changed via bus
Temporary extended The operating mode can be temporarily set from Economy to
Comfort mode via Comfort by pressing the operating mode button, if... operating mode button – Economy was sent via bus
– extended Comfort period >0 (parameter P68)
The last intervention wins, either locally or via bus
Time schedule via bus The operating mode sent via bus can be overridden by all other interventions. Exception: Protection mode has priority 2.
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Auto Timer mode with time schedule via bus
Behavior when bus sends new operating mode
Precomfort via bus
Behavior when bus sends Protection
Availability of Economy mode
P02
1
2
Without time schedule
Operating mode switchover contact
(window contact)
If a time schedule via bus is present, e.g. from central control unit, then the Auto
Timer mode is active. The thermostat automatically changes between Comfort and Economy according to the time schedule via bus.
The display shows the Auto Timer mode symbol along with the symbol for the effective room operating mode (Comfort or Economy ).
By pressing the operating mode button, you can change to another operating mode.
Automatic fan is the default fan speed in Auto Timer mode.
Each time the time schedule sends a new operating mode (switching event), the operating mode of the thermostat is set back to Auto Timer mode. This is to assure that the room temperature is maintained according to the time schedule.
If the time schedule sends Precomfort mode, then this mode will be transformed either into Economy (factory setting) or Comfort (selectable via parameter P88).
No intervention is possible neither by the user nor by an operating mode switchover contact, if Protection mode is set by the time schedule. OFF flashes on the display when the user presses a button.
The operating mode can be selected locally via the operating mode button.
The behavior of the operating mode button (user profile) can be defined via parameter P02, factory setting is P02 = 1.
With time schedule via bus
Description
• Switching manually between 2 modes,
Economy is not available (factory setting)
• Suited for hotel guest rooms or commercial buildings.
• If a time schedule via bus is available, then the
Comfort mode can be temporarily extended
(see below)
• Switching manually between 3 modes
• Suited for homes and rooms where manual switching to Economy mode is desired
The thermostat can be forced into Economy mode (e.g. when a window is opened, when a presence detector signals "no one present", when the keycard of a hotel room is withdrawn, etc). The contact can be connected to digital input D1 (or multifunctional input X1, X2). Set parameter P42 (P38, P40) to 3.
KNX
R
Room operating mode:
Window state
The function is also available via the KNX signal "Window state", e.g. from a KNX switch or a KNX presence detector.
Note: Only one input source must be used, either local input X1/X2/D1or KNX bus.
User operations are ineffective and "OFF" is displayed if the operating mode switchover contact is active, or if "Window state" is sent via bus.
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Temporary timer to extend the Comfort mode
Timer for extension of presence / absence
Comfort mode can be temporarily extended (e.g. working after business hour or on weekends) when the thermostat is in Economy mode. The operating mode button switches the operating mode back to Comfort for the period preset in P68.
Press the operating mode button again to stop the timer.
The following conditions must be fulfilled:
• The operating mode switchover contact is closed (connected to input X1, X2,
D1, parameter P38, P40, P42 set to 3 or a KNX switch, KNX presence detector, etc. via bus) or mode selection via operating mode button is set to "Protection-Auto" (P02 = 1) and the time schedule via bus is Economy
• Parameter P68 (extend Comfort period) is greater than 0
During the temporary Comfort mode extension, symbol appears.
If parameter P68 (extend Comfort period) = 0, extended Comfort cannot be activated; pressing the left button will switch the thermostat to Protection.
If the operating mode switchover contact is active, pressing the left button will show
"OFF" (blinking).
The effective room operating mode can be forced temporarily into Comfort or
Economy / Protection mode. The time period is adjusted via the rotary knob:
• Extend presence: Set the device to Comfort mode for the selected time period
• Extend absence: Set the device to Economy / Protection mode for the selected time period
To activate the function, keep the left button pressed and, within 3 seconds, turn the rotary knob…
• clockwise for extended presence
• counterclockwise for extended absence
The rotary knob adjusts the time period:
• Extend presence: 0:00…+9:30 in steps of 30 minutes; symbol appears
• Extend absence: 0:00…–9:30 in steps of 30 minutes; symbol or
appears
During the extended presence / absence period, the sandglass symbol appears.
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Function if no time schedule is received via bus
User profile for operating mode
(selected via P02)
P02 = 1:
Operating mode when activating function
Comfort
Comfort
Function
Extension
Absence
Operating mode during function
Comfort
Operating mode at the end of function
Protection
Protection Comfort
P02 = 2:
Note Extension / Absence functions not available in protection mode
Function with time schedule via bus
Comfort or Economy Extension
Comfort or Economy Absence
Comfort Economy
Economy Comfort
User profile for operating
mode
(selected via P02)
Operating mode when activating function
Function Operating mode during function
Operating mode at the end of function
P02 = 1:
P02 = 2
Note
Auto, Comfort or Economy Extension Comfort Auto
Auto, Comfort or Economy Absence Economy Auto
Extension / Absence functions are not available in protection mode
Auto or comfort
Auto or comfort
Extension
Absence
Comfort Auto
Protection Auto
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3.2.2 Communication examples
Example 1
The following examples show two typical applications of a central time schedule in conjunction with local control of the room operating mode.
The room operating mode in rooms 1…2 of a building is determined by the time schedule. Window contacts are fitted in all rooms.
The following conditions are specified:
The rooms are used and controlled by the time schedule as follows:
– Night setback from 17:00 to 08:00 (Economy)
– Protection from 20:00 to 06:00
– Lunch break from 12:00 to 13:00 (Precomfort)
The substitution (parameter P88) for Precomfort via bus is set on the thermostats as follows:
– Room 1: Comfort (1)
– Room 2: Economy (0)
Operating mode switchover
Ti me schedule
Window contact
Room 1
Effective room operating mode
Room 1
In room 1, the window is opened briefly, once in the morning, once in late afternoon and once at night (1). Only the opening in the morning has a direct impact on the effective room operating mode.
During lunch break, the time schedule changes to Precomfort. The mode remains in Comfort as set by parameter "Transformation Precomfort" (P88 = 1).
Comfort
Precomfort
Economy
Protection
Window closed
Window open
Comfort
Economy
Protection
06:00 08:00
1)
12:00
2)
13:00 17:00
1)
20:00
1)
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Example 2 Interaction of user operation (operating mode button) and central time schedule
In room 2, the window is opened briefly, once in the morning and once at night (1).
Only the opening in the morning has a direct impact on the effective room operating mode.
With the operating mode button, the operating mode can be changed between
OFF and Auto or temporary Comfort extension respectively.
Time schedule
Room operating
mode
Operating mode button on the thermostat
Window contact
Room 2
Effective room operating mode
Room 2
• During lunch break, the time schedule changes to Precomfort. The mode of the thermostat changes to Economy as set by parameter "Transformation
Precomfort" (P88 = 0) (6).
• During lunch break, the user changes the operating mode to Comfort
(temporary Comfort extension) by pressing the operating mode button (2).
At 13:00, the timer is reset due to mode change of the central time schedule
• In the afternoon, the user switches the thermostat off by pressing the operating mode button (3). At 17:00 the user setting is reset to Economy by the time schedule.
• At 19:30, the user again extends the Comfort mode (4). At 20:00, the timer is reset by the time schedule.
• After 20:00, pressing the operating mode button has no effect, as the central time switch sets the thermostat to Protection (5).
Comfort
Precomfort
Economy
Protection
Pressed
Window open
Window closed
Comfort
Economy
Protection
06:00 08:00
1)
12:00 13:00
6)
2) 3)
17:00
1)
20:00
4) 5)
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Comfort mode
Temporary setpoint
Setpoint limitation
P09 < P10
(comfort concept)
Example
P09
≥ P10
(energy saving concept)
Example
3.3 Room temperature setpoints
3.3.1 Description
The factory setting for the Comfort basic setpoint is 21 °C and can be changed in the thermostat’s EEPROM via parameter P08 or via bus with communication object
"Comfort basic setpoint". The last intervention always wins.
The Comfort setpoint can be adjusted via the rotary knob, or via bus from a remote device like a touchpanel, operating unit, etc.
The last intervention always wins.
If the "Temporary setpoint" function is enabled via parameter P69, the Comfort setpoint adjusted via the rotary knob, or via bus is set back to the Comfort basic setpoint stored in P08 when the operating mode changes.
This setback is only executed when the change of the operating mode was commanded by pressing the mode button on the device or via bus. Setback is not executed when the change of the operating mode was caused by the window contact (digital input or bus).
For comfort or energy saving purposes, the setpoint setting range can be limited to minimum (P09) and maximum (P10).
• If the minimum limit P09 is set lower than the maximum limit P10, both heating and cooling are adjustable between these 2 limits.
• The customer adjusts the desired setpoint and the thermostat controls the room temperature accordingly.
• For 4-pipe applications *), the selected comfort setpoint is in the middle of the dead zone (P33). The unit stops to energize the heating / cooling outputs as soon as the room temperature reaches the dead zone.
Cooling setpoint adjustable 18…25 °C
Heating setpoint adjustable 18…25 °C
5°C 18°C 25°C 40°C
P09 P10
• If the minimum limit P09 is set higher than the limit P10, then
– The setting range of cooling setpoint is from P09…40 °C in place of 5…40 °C
– The setting range of heating setpoint is from 5…P10 °C in place of 5…40 °C.
This allows the user to limit the maximum heating setpoint and the minimum cooling setpoint. This concept helps to save energy costs.
• For 4-pipe applications *):
– The thermostat runs with the setpoint of the active sequence:
In heating mode, the heating setpoint is active and adjustable via rotary knob.
In cooling mode, the cooling setpoint is active and adjustable via rotary knob.
– Switching from the heating setpoint to the cooling setpoint and vice-versa occurs when the room temperature reaches the adjusted limitation (P09 or
P10) of the inactive sequence. E.g. the thermostat is in heating sequence and runs with the heating setpoint. When the room temperature reaches P09, the thermostat switches to cooling mode and runs with the cooling setpoint, as long as the room temperature does not drop below P10.
5°C 21°C 25°C 40°C
Cooling setpoint adjustable 25…40 °C
Heating setpoint adjustable 5…21 °C
P10 P09
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*) Note: SW < V1.20
Economy mode
Protection mode
Caution
For heating and cooling applications (e.g. 4-pipe):
– P09 is the setpoint for cooling and P10 the setpoint for heating
– The setpoint can not be adjusted via the rotary knob
Use control parameters P11 and P12 to adjust the Economy mode setpoints.
The heating setpoint is factory-set to 15 °C, and the cooling setpoint to 30 °C.
Use control parameters P65 and P66 to adjust the Protection mode setpoints.
The heating setpoint is factory-set to 8 °C (frost protection) and to OFF for cooling.
If a setpoint (Economy or Protection) is set to OFF, the thermostat does not control the room temperature in the corresponding mode (heating or cooling).
This means no protective heating or cooling function and thus risk of frost in heating mode or risk of overtemperature in cooling mode!
The Economy setpoints are accessible at the service level (P11, P12); the
Protection setpoints at the expert level (P65, P66).
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3.3.2 Setting and adjusting setpoints
KNX
R
Comfort basic setpoint
Comfort setpoint
Room temperature setpoints can be
– set during commissioning
– adjusted during runtime
The source can be
– the local HMI
– a tool
– a central control unit
The thermostat stores the setpoints
– in EEPROM in the form of parameters
– in the runtime memory
The table below shows the interrelations:
Setpoint setting
Setpoints Heating
Setpoints Cooling
Setpoints Heating
Setpoints Cooling
Stored in EEPROM of thermostat
Commissioning
– HMI
– Tool download
Comfort basic setpoint
Dead zone Comfort
1)
Setpoint Economy Heating
Setpoint Economy Cooling
Setpoint Protection Heating
Setpoint Protection Cooling
Input LTE mode Input S-mode
Comfort basic setpoint P08 Comfort basic setpoint
P33 Dead zone Comfort
1)
P11 Economy Heating
P12 Economy Cooling
P65 Protection Heating
P66 Protection Cooling
Current runtime setpoints in thermostat
Comfort setpoint
Economy Heating
Economy Cooling
Protection Heating
Protection Cooling
Input LTE mode
2)
Setpoint shift H
Setpoint shift C
Setpoint shift H
Setpoint shift C
Setpoint adjustment
New current runtime setpoints in thermostat
Input S-mode
3)
Local operation
3)
Comfort setpoint Rotary knob Comfort setpoint
Economy Heating
Economy Cooling
Protection Heating
Protection Cooling
Effective room operating mode
KNX
R
Current setpoint
Current setpoint (used by the thermostat for temperature control)
1) Only required for heating AND cooling applications (see section 3.6.11)
2) LTE mode: the shift is added to the local shift
3) S-Mode: the last intervention wins, either S-Mode input or local operation
The current setpoint (used by the thermostat for temperature control) is available on the bus for use in the central control unit.
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Clarification concerning current setpoint in
Comfort mode
2-pipe or
4-pipe with P09>P10
The comfort setpoint w (e.g. customer setting on the display) and the current
setpoint w2 (used by the thermostat for temperature control, but not visible on the unit) is handled differently depending of the selected application and setting:
The comfort setpoint w and current setpoint w2 have the same value
Heating mode
Y [%]
100
Y1
Cooling mode
Y [%]
100
Y1
4-pipewith P09<P10
0
XpH w
T[°C]
0 w
XpC
T[°C]
The comfort setpoint w (value selectable via e.g. rotary knob) is in the middle of the dead zone (P33). The current setpoints w2.. (used by the thermostat for temperature control) are at the boundaries of the dead zone. w2h = Comfort setpoint (w) – ½ dead zone (Xdz) w2c = Comfort setpoint (w) + ½ dead zone (Xdz)
Y [%] Y1
½ x dz
½ x dz
Y2
100
General notes:
Notes on setpoint adjustment (LTE mode with Synco only)
Setpoint priority
Setpoint Master (RMB)
0
XpH w XpC
T[°C] w2h w2c
• The supported communication objects are different in LTE mode and S-mode.
• Changes via the local HMI or via tool have the same priority (last always wins).
• Setting the Comfort basic setpoint will reset the runtime Comfort setpoint to the basic setpoint.
• Central setpoint shift is used for summer / winter compensation in particular.
• Setpoint shift does not affect the setpoints stored in parameters P08, P11, P12,
P33.
• Local shift and central shift are added together.
• Applies only to Comfort and Economy setpoints; Protection setpoints are not shifted centrally.
• The resulting (current) setpoint heating and cooling is limited by the Protection setpoint; if Protection setpoint is OFF, then minimum 5 °C and maximum 40 °C are used.
• The resulting setpoints for cooling and heating of the same operating mode have a minimum distance of 0.5 K between them.
• The result of local and central shift, together with the room operating mode, is used by the thermostat for temperature control (current setpoint).
• The room thermostat always adopts the received setpoints from the controller
RMB795. Thus the setpoints locally adjusted on the RDG room thermostats are overwritten by the setpoints of the room group (e.g. every 15 min).
RDG160KN: On RMB SW Version >= 2.0 it is possible to define under which circumstances the controller has to send out the setpoints. See "Setpoint priority" and "Setpoint Master" functions on RMB.
RDG100KN: The local setpoints are always overwritten.
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Remote configuration
3.4 Applications overview
The thermostats support the following applications, which can be configured using the DIP switches at the rear of the unit or a commissioning tool.
DIP switches 1...3 need to be set to OFF (remote configuration, factory setting) to select an application via commissioning tool.
Remote configuration, via commissioning tool (factory set)
• Synco ACS
• ETS
DIP switches
ON
The tools provide the applications described in section 3.4.1 (basic applications).
For universal applications (chilled ceiling, etc.) and compressor applications, refer
to sections 3.4.2, 3.4.3, 3.6.9, 3.6.10.
3.4.1 Applications for fan coil systems
Applications, DIP setting, Control outputs
• 2-pipe fan coil unit
ON
OFF
1 2 3 4 5
• 2-pipe fan coil unit and electric heater
ON
OFF
1 2 3 4 5
• 2-pipe fan coil unit and radiator / floor
heating
ON
OFF
1 2 3 4 5
B2
T
YE
T
B2
T
(B1)
T
(B1)
T
B2
T
(B1)
Y1
Y1 Y1
M1
T
(B1)
M1
T
(B1)
M1
T
(B1)
Using RDG100KN, RDG160KN
• 2-pipe / 2-stage fan coil unit
ON
OFF
1 2 3 4 5
Using RDG100KN, RDG160KN
• 4-pipe fan coil unit
ON
OFF
1 2 3 4 5
YR
Using RDG100KN, RDG160KN
• 4-pipe fan coil unit and electric heater
ON
OFF
1 2 3 4 5
B2
T Y2
Y1
T
(B1)
Y2
Y1
T
(B1)
YE
B2
Y2
T
(B1)
Y1
M1
T
(B1)
M1
T
(B1)
M1
T
(B1)
Using RDG100KN, RDG160KN
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Product no.
RDG100KN
RDG160KN
RDG160KN
Control outputs
On/off, PWM, 3-position
DC 0...10 V
On/off
Fan
3-speed, 1-speed
3-speed, 1-speed, DC 0...10 V
DC 0...10 V
3.4.2 Applications for Universal systems
Applications, DIP setting, Control outputs
• Chilled / heated ceiling
ON
OFF
1 2 3 4 5
• Chilled / heated ceiling and electric heater
ON
OFF
1 2 3 4 5
B2
T
D3 B2
T
D3
• Chilled / heated ceiling and radiator
/ floor heating
B2 D3
T
ON
OFF
1 2 3 4 5
Y1 Y1 Y1
T
B1
T
B1
T
B1
T N1
Using RDG100KN, RDG160KN
• 2-stage chilled / heated ceiling
ON
OFF
1 2 3 4 5
YE
T N1
Using RDG100KN, RDG160KN
• Chilled ceiling and radiator
ON
OFF
1 2 3 4 5
D3
YR
T N1
Using RDG100KN, RDG160KN
Y1
Y1
T
B1
Y2
YR
T N1
Using RDG100KN, RDG160KN Using RDG100KN, RDG160KN
Product no. Control outputs
RDG100KN
RDG160KN
On/off, PWM, 3-position
On/off, DC 0...10 V
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3.4.3 Applications for heat pump systems (RDG160KN)
Applications, DIP setting, Control outputs
• Heated or cooled with compressors
D3
ON
OFF
1 2 3 4 5
• Heated or cooled with compressors with electric heater
D3
ON
OFF
1 2 3 4 5
T
B1
T
B1
YE
Using RDG160KN
• Heated and cooled with compressors
D3
T N1
ON
OFF
1 2 3 4 5
T N1
Using RDG160KN
• 2-stage heated or cooled with compressors
D3
ON
OFF
1 2 3 4 5
T
B1
T
B1
T N1 2
T N1
Using RDG160KN Using RDG160KN
Product no.
RDG160KN
Key
Control outputs Fan
On/off, DC 0...10 V Disabled, DC 0...10 V
Y1 Heating or heating / cooling valve actuator
Y2 Cooling valve actuator
YE Electric heater
Notes
M1 1-speed or 3-speed fan
B1 Return air temperature sensor or external room temperature sensor (optional)
B2 Changeover sensor (optional)
RDG100KN
• Use P46 / P47 to change output from On/Off (factory setting) to PWM.
• Use DIP switches 4 and 5 to change output from On/Off to 3-position.
RDG160KN
• Use P46 / P47 to change valve actuator output from DC (factory setting) to On/Off.
• Use DIP switch 4 to change fan output from DC (factory setting) to 3-speed.
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Heating / cooling changeover via bus
KNX
R
Heating/cooling changeover
Automatic heating / cooling changeover via changeover sensor
3.5 Additional functions
The heating / cooling changeover information can be received via bus. This is only possible if the control sequence is set to automatic heating / cooling changeover
(parameter P01 = 3) and no local input X1, X2, D1 is assigned with this function.
In the absence of the required information (e.g. due to problems with data communication, power failure, etc.), the thermostat operates in the last valid room operating mode (heating or cooling).
If a cable temperature sensor (QAH11.1 + ARG86.3) is connected to X1 / X2, and parameter P38 / P40 is =2, the water temperature acquired by the changeover sensor is used to change over from heating to cooling mode, or vice versa.
• When the water temperature is above 28 °C (adjustable via parameter P37), the thermostat changes over to heating mode.
It stays in heating mode until the temperature falls below 16°C (adjustable viaparameter P36).
• When the water temperature is below 16 °C (P36), the thermostat changes over to cooling mode.
It stays in cooling mode until the temperature rises above 28°C (P37).
• If the water temperature is between the 2 changeover points immediately after power-up (inside the hysteresis), the thermostat starts in previous mode.
The water temperature is acquired at 30-second intervals and the operating state is updated accordingly.
M
Changeover switch
Note
P36 P37
T w
[°C]
M Operating mode
T w
Water temperature
Cooling mode
Heating mode
The QAH11.1 cable temperature sensor for automatic heating / cooling changeover can be replaced by an external switch for manual, remote changeover:
X2
M
T
X2
M
Contact open heating mode
Contact closed cooling mode
QAH11.1
3076Z03
T °C
The sensor or switch can be connected to input terminal X2 or X1 or D1 (switch only), depending on the commissioning of the inputs (P38, P40, P42).
See also section 3.9 "Multifunctional input".
By using an external switch as changeover, the Operating action (via parameters
P39, P41 or P43) cannot be modified.
The assignment is fix: Contact open heating mode
Contact closed cooling mode
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Manual heating / cooling changeover
External / return air temperature sensor
Purge function
Avoid damage from moisture
Avoid cold air in heating mode
Minimum output
ON-time / OFF-time
Floor heating /
Floor cooling
Floor temperature limitation function
• Manual heating / cooling changeover means selection via changeover button on the thermostat by repeatedly pushing the button until the required mode is shown on the display (automatic changeover is done via bus or via an external sensor / switch connected to X1, X2, or D1).
• If manual heating / cooling changeover is commissioned (P01 = 2), then heating
/ cooling mode cannot be changed via bus / changeover sensor / switch; it will remain in the last mode as selected locally via button.
The thermostat acquires the room temperature via built-in sensor, external room temperature sensor (QAA32), or external return air temperature sensor (QAH11.1) connected to multifunctional input X1 or X2.
Inputs X1 or X2 must be commissioned accordingly. See section 3.9 "Multi-
functional input".
The changeover sensor ensures changeover from heating to cooling mode based on the acquired water temperature. We recommend activating the "Purge" function
(parameter P50) with 2-port valves. This function ensures correct acquisition of the medium temperature even if the 2-port valve is closed for an extended period of time. The valve is then opened for 1 to 5 minutes (adjustable) at 2-hour intervals during off hours.
In very warm and humid climates, the fan can be run periodically or continuously at a low fan speed (e.g. in empty apartments or shops) in Economy mode by setting parameter P61, in order to avoid damage from moisture due to lack of air
circulation. See also section 3.8 "Fan control", under "Fan kick function".
To let the heating coil reach its temperature, the fan start can be delayed by a time period set via parameter P67.
Limit the On/Off switching cycle to protect the HVAC equipment, e.g. compressor and reduce wear and tear. The minimum output on-time and off-time for On/Off control output can be adjusted from 1 to 20 minutes via parameters P48 and P49.
The factory setting is 1 minute.
Readjusting the setpoint or heating / cooling mode changeover immediately results in calculation of the output state; the outputs may not hold the minimum 1-minute
On/Off time.
If parameter P48 or P49 is set to above 1 minute, the minimum On/Off time for the control output is maintained as set, even if the setpoint or changeover mode is readjusted.
All heating sequences can also be used for floor heating.
You can use fan coil unit heating / cooling sequences for floor heating or cooling by disabling the fan via parameter P52.
The floor temperature should be limited for 2 reasons: Comfort and protection of the floor.
The floor temperature sensor, connected to multifunctional input X1 or X2, acquires the floor temperature. If the temperature exceeds the parameterized limit (parameter P51), the heating valve is fully closed until the floor temperature drops to a level
2 K below the parameterized limit.
This function is factory-set to OFF (disabled).
Input X1 or X2 must be commissioned accordingly (P38 or P40 = 1).
See section 3.9 "Multifunctional input".
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Recommended values for P51:
Living rooms:
Up to 26 °C for long-time presence, up to 28 °C for short-time presence.
Bath rooms:
Up to 28 °C for long-time presence, up to 30 °C for short-time presence.
The table below shows the relation between parameter, temperature source and temperature display:
External temp. Source for display of Output control Floor temp.
Parameter P51
OFF
OFF
10...50
˚C sensor available
No
Yes
No room temperature
Built-in sensor according to
Built-in sensor limit function
Not active
External temp. sensor External temp. sensor Not active
Built-in sensor Not active
10…50
˚C
Yes Built-in sensor
Built-in sensor
Built-in sensor + limit by external sensor
Active
Application Output Y1
The "Floor temperature limitation" function influences the outputs listed in the table below:
Output Y2 Output Y3
"Floor temp. limit" function has impact on t t
Heating
(P01 = 0/2/3)
Cooling
(P01 = 1/2/3)
Heat. and cool.
(P01 = 4) Remark
2-pipe H/C valve
2-pipe & el heater H/C valve El heater
2-pipe & radiator H/C valve
4-pipe
Radiator
Heating valve Cooling valve
Y1
Y2
Y2
Y1
N/A
Y2 *)
Y2
N/A Y1
Only el heater
Only radiator
4-pipe & el heater Heating valve Cooling valve El. heater
2-stage 1st H/C
Note
Supply air temperature limitation (RDG160KN)
2nd H/C
Y3
Y1, Y2
N/A
N/A
Y3 Only el heater
*) If P13 = ON electric heater in cooling mode
Either floor temperature sensor or external room temperature sensor can be used.
This function increases the comfort in the room by keeping the supply air temperature of the fan coil unit between the selected minimum and maximum temperature limits.
If the supply air temperature exceeds a limit, the thermostat reduces the corresponding valve position until the supply air temperature is back in the limits.
In case the air flow is too low (especially with DC 0...10 V fans), this prevents cold air from dumping into the room / warm air from bubbling straight up instead of circulating.
To enable this function, the multifunctional input, to which the supply air sensor is connected, needs to be set to "Supply air sensor" (e.g. P38=9). Then the parameters for the limits are visible (P63: minimum supply air temperature,
P64: maximum supply air temperature).
This function is only active in Comfort mode and can only be used with DC 0...10 V actuators.
Note For applications with electric heater, this function is not available.
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Dew point monitoring
KNX
R
Fault state
Fault information
Button lock
Switch off external equipment in
Protection mode
(RDG160KN)
Dew point monitoring is essential to prevent condensation on the chilled ceiling
(cooling with fan disabled, parameter P52). It helps avoid associated damage to the building.
A dew point sensor with a potential-free contact is connected to multifunctional input X1, X2 or D1. If there is condensation, the cooling valve is fully closed until no more condensation is detected, and the cooling output is disabled temporarily.
The condensation symbol " " is displayed during temporary override and the fault
"Condensation in room" will be sent via bus.
The input must be commissioned accordingly (P38, P40, P42).
See section 3.9 "Multifunctional input".
If the "Button lock" function is enabled by parameter P14, the buttons will be locked or unlocked by pressing the right button for 3 seconds.
If "Auto lock" is configured, the thermostat will automatically lock the buttons 10 seconds after the last adjustment.
The external equipment (e.g. fan coil unit) can be switched off via relay output Q3 of the thermostat, in order to reduce energy consumption when the thermostat is in
Protection mode and no temperature control is requested.
The "Switch off in Protection" function is enabled via parameter P74 = 1.
The relay function can be checked via diagnostic parameter d10.
This function is only available for applications with DC 0…10 V fan (DIP 4 = off or
P53 = 3), or for universal applications (without fan).
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3.6 Control sequences
3.6.1 Sequences overview (setting via parameter P01)
The main control sequence (i.e. the water coil sequence of the fan coil unit) can be set via parameter P01.
The following sequences can be activated in the thermostats (each without or with auxiliary heating).
The available sequences depend on the application (selected via DIP switch, see
P01 = 0 P01 = 1 P01 = 2 P01 = 3 P01 = 4 Parameter
Sequence
T
Available for basic application
1)
:
2-pipe,
2-pipe & el heater
2-pipe & radiator
4-pipe
4-pipe & el heater
2-stage heating or cooling
Heating
T °C
Cooling
= heating sequence for el. heater / radiator
T °C
Manually select heating or cooling sequence
(using the button on the thermostat)
T °C
T °C
Automatic heating / cooling changeover via external water temperature sensor or remote switch
T °C
Heating and cooling sequence, i.e.
4-pipe
Notes:
2) 2)
1) For chilled / heated ceiling and radiator applications, see section 3.6.9;
2) For manual and automatic changeover with 4-pipe applications, see section
– 4-pipe manual changeover (P01 = 2) means activating either cooling or heating outputs
– 4-pipe automatic changeover (P01 = 3) means swapping the control outputs according to a heating / cooling sensor or remote switch ("main and
secondary" application), see section 3.6.6.
For the relation between setpoints and sequences, see section 3.6.11.
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3.6.2 Application mode
KNX
R
Application mode
The behavior of the thermostat can be influenced by a building automation and control system (BACS) via bus with the command "Application mode".
With this signal, cooling and/or heating activity can be enabled or disabled.
Application mode is supported in LTE mode and S-mode.
The RDG KNX thermostats support the following commands:
# Application mode
0 Auto
Description Control sequence enabled
Heating and/or cooling
1 Heat
2 Morning warm-up
Thermostat automatically changes between heating and cooling
Thermostat is only allowed to heat
If "Morning warm-up" is received, the room should be heated up as fast as possible (if necessary). The thermostat will only allow heating
Heating only
Heating only
3 Cool Thermostat is only allowed to provide cooling Cooling only
4 Night purge Not supported by fan coil applications N/A (= Auto)
5 Pre-cool If "Pre-cool" is received, the room should be cooled down as fast as possible (if
Cooling only
6
8
Off
Emergency heat necessary). The thermostat will only allow cooling
Thermostat is not controlling the outputs, which means all outputs go to off or 0%
Neither heating nor cooling
Heating only
9 Fan only
The thermostat should heat as much as possible. The thermostat will only allow heating
All control outputs are set to 0% and only the fan is set to high speed.
Function will be terminated by any operation on the thermostat
Run fan in high speed
With all other commands, the thermostat behaves like in Auto mode, i.e. heating or cooling according to demand.
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ACS
Heating OR cooling
Heating AND cooling
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The state (heating or cooling) of the thermostat can be monitored with the ACS tool
(diagnostic value "Control sequence"). The last active mode is displayed when the thermostat is in the dead zone or temperature control is disabled.
With a 2 pipe application, the control sequence state is determined by the
application mode (see section 3.6.2) and by the state of the heating / cooling
changeover signal (via local sensor or bus), or fixed according to the selected control sequence (P01 = heating (0) / cooling (1)).
Application mode (via bus)
State changeover / continuous heating or cooling
Heating
Auto (0)
Cooling
Heat (1), (2), (8) Heating
Cooling
Heating
Cool (3), (5)
Night purge (4),
Fan only (9)
Cooling
Heating
Cooling
Control sequence state
(ACS diagnostic value)
Heating
Cooling
Heating
Heating
Cooling
Cooling
Heating
Cooling
With a 4-pipe, 2-pipe with electric heater, and 2-pipe with radiator application, the control sequence state depends on the application mode and on the heating / cooling demand.
Application
Mode (via bus)
Heating / cooling demand
Heating
Control sequence state
(ACS diagnostic value)
Heating
Auto (0)
No demand
Cooling
Heating / cooling depending on last active sequence
Cooling
Heat (1), (2), (8)
Cool (3), (5)
Heating
No demand
Cooling
Heating
Heating
Heating
Heating
Cooling
No demand
Cooling
Cooling
Cooling
No temperature control active Heating / cooling depending on last active sequence
Night purge (4),
Fan only (9)
The value of the output as a function of the room temperature is shown in the following diagram in case of a heating and cooling system:
1 = Heat
0 = Cool
100%
Wheat = current heating setpoint
0
Wheat Wcool
TR
Wcool = current cooling setpoint
TR = room temperature
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On/Off control
Control sequence
On/Off output
3.6.3 2-pipe fan coil unit
On 2-pipe applications, the thermostat controls a valve in heating / cooling mode with changeover (automatically or manually), heating only, or cooling only. Cooling only is factory-set (P01 = 1).
The diagrams below show the control sequence for 2-position control.
Heating mode
Y
YHC
Cooling mode
Y
YHC
1 1
0 w
T[°C]
0 w
T[°C]
½ SDH ½ SDH
½ SDC ½ SDC
T[°C] Room temperature w Room temperature setpoint
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
YHC Control command "Valve"
Modulating control: 3-position, PWM or DC 0…10V
Control sequence modulating output
The diagrams below show the control sequence for modulating PI control.
Heating mode Cooling mode
Y [%] Y [%]
YHC
YHC
100
100
0
XpH w
T[°C]
0 w
XpC
T[°C]
T[°C] Room temperature w Room temperature setpoint
XpH
XpC
Proportional band "Heating" (P30)
Proportional band "Cooling" (P31)
Note:
YHC Control command "Valve"
The diagrams only show the PI thermostat’s proportional part.
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
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3.6.4 2-pipe fan coil unit with electric heater
Heating or cooling with auxiliary heater
Electric heating, active in cooling mode
Electric heating in heating mode
Electric heating and manual changeover
Digital input "Enable electric heater"
KNX
R
Enable electric heater
On/Off electric heater on RDG160KN
Adaptive temperature compensation for electric heater
Note:
Caution
On 2-pipe applications with electric heater, the thermostat controls a valve in heating / cooling mode with changeover, heating only, or cooling only plus an auxiliary electric heater.
Cooling only is factory-set (P01 = 1) with enabled electric heater (P13).
In cooling mode, the valve receives an OPEN command if the acquired temperature is above the setpoint.
The electric heater receives an ON command if the acquired room temperature drops below "setpoint" minus "dead zone" (= setpoint for electric heater) while the electric heater is enabled (parameter P13 = ON).
Note: "Setpoint for electric heater" is limited by parameter "Maximum setpoint for
Comfort mode" (P10).
In heating mode, the valve receives an OPEN command if the acquired temperature is below the setpoint. The electric heater is used as an additional heating source when the heating energy controlled by the valve is insufficient.
The electric heater receives an ON command, if the temperature is below
"setpoint" minus "setpoint differential" (= setpoint for electric heater).
The electric heater is active in heating mode only and the control output for the valve is permanently disabled when manual changeover is selected (P01 = 2).
Remote enabling / disabling of the electric heater is possible via input X1, X2 or D1 for tariff regulations, energy savings, etc.
Input X1, X2, or D1 must be commissioned accordingly (parameters P38, P40,
P42). See section 3.9 "Multifunctional input".
The electric heater can also be enabled / disabled via bus.
If "Enable electric heater" input is used via bus, then the function must not be assigned to a local input X1, X2 or D1.
An electric heater must always be protected by a safety limit thermostat!
• With a DC 0...10 V (ECM) fan it is possible to select On/Off control for the electric heater by setting parameter P47 = 1. The electric heater has to be connected to output Q2.
• The electric heater starts with a delay of 15 s, to make sure the fan delivers sufficient air flow to dissipate the heat.
When an electric heater is connected directly to output Q2, the current causes the relay contact to heat up. This falsifies the reading of the internal temperature sensor. The thermostat compensates the temperature if the rated power of the electric heating is entered in parameter P45.
Factory setting P45: 0.0 kW, setting range: 0.0 …1.2 kW.
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On/Off control
Control sequence
On/Off output
The diagrams below show the control sequence for 2-position.
Heating mode Cooling mode
(automatic changeover = heating or heating only)
Y
YE YHC w
D
(man. / auto. changeover = cooling or cooling only)
Y
YE x dz
YHC
1 1
0
½ SDH w
T[°C]
½ SDH
0
½ SDC w
½ SDC
T[°C]
½ SDH ½ SDH ½ SDH ½ SDH
Heating mode with manual changeover (P01 = 2) (manual changeover = heating)
Y T[°C] Room temperature
YE W Room temperature setpoint
1 YHC Control command "Valve"
YE Control command "Electric heater"
SDH Switching differential "Heating" (P30)
0 w
T[°C]
½ SDH ½ SDH
SDC Switching differential "Cooling" (P31)
X dz
Dead zone (P33) w
D
Setpoint differential (P34)
Modulating control: 3-position, PWM or DC 0…10V
Control sequence modulating output
The diagrams below show the control sequence for modulating control.
Heating mode Cooling mode
(automatic changeover = heating or heating only)
Y [%] YE YHC w
D
(man. /auto. changeover = cooling or cooling only)
Y [%] YE YHC x dz
100 100
0
XpH w
T[°C] 0
XpH
Heating mode with manual changeover (P01 = 2)
(manual changeover = heating)
Y [%]
YE
XpH
T[°C] Room temperature w
XpC
W Room temperature setpoint
100
YHC Control command "Valve"
YE Control command "Electric heater"
XpH Proportional band "Heating" (P30)
0 w
T[°C]
XpC Proportional band "Cooling" (P31)
X dz
Dead zone (P33)
XpH w
D
Setpoint differential (P34)
The diagrams only show the PI thermostat’s proportional part. Note:
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
T[°C]
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3.6.5 2-pipe fan coil unit with radiator or floor heating
Heating or cooling with radiator or floor heating
Radiator, active in cooling mode
Radiator in heating mode
Floor heating
On/Off control
On 2-pipe applications with radiator, the thermostat controls a valve in heating / cooling mode with changeover, heating only, or cooling only plus a radiator valve.
Cooling only is factory-set (P01 = 1).
In cooling mode, the valve receives an OPEN command if the acquired temperature is above the setpoint.
The radiator receives an ON command if the acquired room temperature drops below "setpoint" minus "dead zone" (= setpoint for radiator).
In heating mode, the radiator receives an OPEN command if the acquired temperature is below the setpoint. The fan coil unit is used as an additional heat source when the heat energy controlled by the radiator is insufficient.
The fan coil unit receives an ON command if the temperature is below "setpoint" minus "setpoint differential" (= setpoint for fan coil unit).
The radiator sequence can also be used for floor heating.
The "Floor heating limitation" function is described on page 29.
The diagrams below show the control sequence for 2-position control.
Heating mode Cooling mode
Y YHC YR
Y YR YHC w
D x dz
1 1
0
½ SDR w
T[°C]
½ SDR
0
½ SDC w
½ SDC
T[°C]
½ SDH ½ SDH ½ SDR ½ SDR
T[°C] Room temperature
W Room temperature setpoint
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
YHC Control command "Valve" or "Compressor" SDR Switching differential "Radiator" (P32)
YR Control command "Radiator" X dz
Dead zone (P33) w
D
Setpoint differential (P34)
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Modulating control: 3-position, PWM or DC 0...10 V
The diagrams below show the control sequence for modulating PI control.
Heating mode Cooling mode
Y [%] YHC w
D
YR Y [%] YR x dz
YHC
100 100
0
XpH XpR w
T[°C] 0
XpR w
XpC
T[°C] Room temperature
W Room temperature setpoint
YHC Control command "Valve"
YR Control command "Radiator"
XpH Proportional band "Heating" (P30)
XpC Proportional band "Cooling" (P31)
XpR Proportional band "Radiator" (P32)
X dz
Dead zone (P33) w
D
Setpoint differential (P34)
Note: The diagrams only show the PI thermostat’s proportional part.
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
T[°C]
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3.6.6 4-pipe fan coil unit
Heating and cooling
4-pipe application with manual changeover
"Main and secondary" application (4-pipe with changeover)
T B2
V2
V1
On 4-pipe applications, the thermostat controls 2 valves in heating and cooling mode, heating / cooling mode by manual selection, or heating and cooling mode with changeover. Heating and cooling mode (P01 = 4) is factory-set.
The heating or cooling output can be released via operating mode button if parameter P01 is set to Manual (P01 = 2).
If parameter P01 is set to changeover (P01 = 3), the heating and cooling output is swapped according to the input state of the changeover sensor / switch / bus input
(see automatic heating and cooling changeover sensor in section 3.5). This mode
is used for the so-called "Main and secondary" application. This is a 4-pipe fan coil unit system with different capacities of the 2 coils. The water circuit is changed to optimize the energy exchange depending on the season (summer / winter):
B1
M1
T
– Winter: Large coil (V1) for heating, small coil (V2) for cooling
– Summer: Large coil (V1) for cooling, small coil (V2) for heating
Y
Changeover
1
YH YC
0 Note: w w
T[°C]
This example shows
On/Off control; for modulating control, connect the appropriate output terminals
YH
YC
V1
V2
Changeover
Notes:
• The parameter for the heating and cooling changeover sensor (B2 in the above diagram) must be set to 2 (X1 or X2, P38 or P40).
• The thermostat assumes winter operation when B2 > P37 (factory setting 28 °C).
• The thermostat assumes summer operation when B2 < P36 (factory setting 16 °C).
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On/Off control The diagrams below show the control sequence for 2-position control.
Heating mode with manual selection Cooling mode with manual selection
(P01 = 2) or for P09 >= P10 in heating sequence *)
Y
YH
(P01 = 2) or for P09 >= P10 in cooling sequence *)
Y
YC
1 1 w
0
T[°C]
½ SDH ½ SDH
Heating and cooling mode (P01 = 04)
Y YH
½ x dz
½ x dz
YC
100
0
T[°C] Room temperature
100
½ SDC w
½ SDC
T[°C]
w Room temperature setpoint
1 YH Control command "Valve" (heating)
YC Control command "Valve" (cooling) w
SDH Switching differential "Heating" (P30)
0
½ SDC ½ SDC
T[°C]
SDC Switching differential "Cooling" (P31)
½ SDH ½ SDH
X dz
Dead zone (P33)
Modulating control: 3-position, PWM, or DC 0...10 V
The diagrams below show the control sequence of modulating PI control.
Heating mode with manual selection Cooling mode with manual selection
(P01 = 2) or for P09 >= P10 in heating sequence *)
Y [%]
(P01 = 2) or for P09 >= P10 in cooling sequence *)
Y [%]
YC
YH
0 w
T[°C]
XpH
Heating and cooling mode (P01 = 04)
Y [%] YH
½ x dz
½ x dz
YC
100
0 w
XpC
T[°C]
T[°C] Room temperature w Room temperature setpoint
YH Control command "Valve" (heating)
YC Control command "Valve" (cooling)
0
XpH w
XpC
T[°C]
XpH Proportional band "Heating" (P30)
XpC Proportional band "Cooling" (P31)
X dz
Dead zone (P33)
*) P09, P10 with software V1.20 and later, see section 3.3.1
Note: The diagrams only show the PI thermostat’s proportional part.
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
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3.6.7 4-pipe fan coil unit with electric heater (RDG100KN)
Heating and cooling with auxiliary heater
Electric heating in heating mode
Digital input "Enable electric heater"
On 4-pipe applications with electric heater, the thermostat controls 2 valves in heating and cooling mode by manual selection, heating and cooling mode with automatic changeover, heating only, or cooling only plus an auxiliary electric heater. Heating and cooling is factory-set (P01 = 4).
The electric heater is used as an additional heat source when the heating energy controlled by the valve is insufficient.
The electric heater receives an ON command when the temperature is below
"setpoint" minus "1/2 "dead zone" minus "setpoint differential" (= setpoint for electric heater).
Remote enabling / disabling of the electric heater is possible via input X1, X2, or
D1 for tariff regulations, energy saving, etc.
Input X1, X2, or D1 must be commissioned accordingly (parameters P38, P40,
P42). See section 3.9 "Multifunctional input".
KNX
R
Enable electric heater
Caution
The electric heater can also be enabled / disabled via bus.
If the bus input is used, then the function must NOT be assigned to a local input
X1, X2 or D1.
An electric heater must always be protected by a safety limit thermostat!
4-pipe application with manual changeover
The heating or cooling output can be released via operating mode button if parameter P01 is set to Manual (P01 = 2).
"Main and secondary" application
On/Off control The diagrams below show the control sequence for 2-position control.
Heating mode with manual selection (P01 = 2) Cooling mode with manual selection P01 = 2)
Y Y
YE YH
YC
1 1
0
½ SDC w
½ SDC
T[°C] w
0
½ SDH
T[°C]
½ SDH
½ SDH ½ SDH
W
D
Heating and cooling mode (P01 = 4)
Y
YE YH
½ x dz
½ x dz
YC
1
0
½ SDH ½ SDH
½ SDH
W
D w
½ SDC
½ SDH
½ SDC
T[°C]
T[°C] Room temperature w Room temperature setpoint
YE Control command "El heater"
YH Control command "Valve" (heating)
YC Control command "Valve" (cooling)
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
X dz
Dead zone (P33) w
D
Setpoint differential (P34)
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Modulating control: 3-position or PWM
The diagrams below show the control sequence of modulating PI control.
Heating mode with manual selection (P01 = 2)
Y [%]
YE YH
Cooling mode with manual selection P01 = 2)
Y [%] YC
100 100 w
0
½ SDH ½ SDH w
D
XpH w
Heating and cooling mode (P01 = 4)
Y [%]
YE YH
½ x dz
½ x dz
YC
T[°C]
0
XpC
T[°C]
100
0
½ SDH ½ SDH w
D
XpH w
XpC
T[°C]
T[°C] Room temperature w Room temperature setpoint
YE Control command "El heater"
(only On/Off)
YH Control command "Valve" (heating)
(On/Off or PWM, not 3-position)
YC Control command "Valve" (cooling)
(On/Off, PWM or 3-position)
XpH Proportional band "Heating" (P30)
XpC Proportional band "Cooling" (P31)
X dz
Dead zone (P33) w
D
Setpoint differential (P34)
Note: The diagrams only show the PI thermostat’s proportional part.
Setting the sequence and the control outputs
Notes:
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
• YH can only be On/Off or PWM
• YC can be On/Off, PWM or 3-position
• YE can only be On/Off
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2-stage heating or cooling
Heating mode
Cooling mode
On/Off control
Heating mode (P01 = 0)
Y
SDH SDH
1
3.6.8 2-pipe / 2-stage heating or cooling
On 2-stage applications, the thermostat controls 2 valves or compressors in heating or cooling mode or changeover (automatically or manually).
"Cooling only" is factory-set (P01 = 1).
In heating mode, the 1st stage is activated if the acquired temperature is below the setpoint.
The 2nd stage is activated if the acquired room temperature drops below "setpoint" minus "setpoint differential".
In cooling mode, the 1st stage is activated if the acquired temperature is above the setpoint.
The 2nd stage is activated if the acquired room temperature rises above "setpoint" plus "setpoint differential".
The diagrams below show the control sequence for 2-position control.
Cooling mode P01 = 1)
Y
SDC SDC
1 w
0 w
D
Changeover (P01 = 2 or P01 = 3)
Changeov er
Y
SDH SDH SDC
1
SDC
TR [°C]
0 w
D w
D TR [°C] w
0 w
D TR [°C]
T[°C] w
D
Room temperature w Room temperature setpoint
YHC1 Control command "Stage 1"
YHC2 Control command "Stage 2"
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
Setpoint differential (P34)
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Modulating control: 3-position, PWM or DC 0...10 V
The diagrams below show the control sequence of modulating PI control.
Heating mode (P01 = 0)
Y
XpH XpH
100%
Cooling mode P01 = 1)
Y
XpC
100%
XpC
YHC1
YHC2
YHC2 YHC1
0% w
D w
TR [°C]
0% w w
D
Changeover (P01 = 2 or P01 = 3)
Changeov er
100%
Y
XpH
YHC2
XpH
YHC1 w
XpC
YHC1
XpC
YHC2
T[°C] w
Room temperature
Room temperature setpoint
YHC1 Control command "Stage 1"
YHC2 Control command "Stage 2"
XpH Proportional band "Heating" (P30)
XpC w
D
Proportional band "Cooling" (P31)
Setpoint differential (P34)
0% w
D w
D TR [°C]
Note: The diagrams only show the PI thermostat’s proportional part.
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
TR [°C]
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3.6.9 Chilled / heated ceiling and radiator applications
For chilled / heated ceiling and radiator,
• set the corresponding basic application according to section 3.4
• disable the fan (P52)
The following applications are available:
Application for chilled / heated ceiling, radiator
Chilled / heated ceiling with changeover
Chilled / heated ceiling & el heater
(cooling only: disable el heater via P13)
Chilled / heated ceiling and radiator
Chilled ceiling and radiator
Set basic application
2-pipe
2-pipe and electric heater
2-pipe and radiator
4-pipe
See section
Sequences
H
C
C
H + C
( \ )
( / )
El H + H ( \ \ )
El H + C ( \ / )
( / )
H + rad ( \ r\ )
Rad + C ( r\ / )
( \ / )
Chilled / heated ceiling, 2-stage
2-stage heating or cooling 3.6.8
H + H ( \ \ )
C + C ( / / )
3.6.10 Compressor applications (RDG160KN)
For compressor applications,
• set the corresponding basic application according to section 3.4
• disable the fan (P52) or set the type of fan speed (P53)
• Select the type of control outputs (On/Off or DC 0...10 V, P46, P47)
The following applications are available:
Application for compressors in DX-type equipment
1-stage compressor
Set basic application See section Sequences
1-stage compressor and el. heater
(cooling only: disable el. heater via P13)
1-stage compressor for heating and cooling
2-stage compressor
Notes
2-pipe
2-pipe and electric heater
4-pipe
H
C
El. H + H ( \ \ )
El. H + C ( \ / )
C
H + C
( \ )
( / )
( / )
( \ / )
2-stage heating or cooling 3.6.8
H + H ( \ \ )
C + C ( / / )
• Minimum on/off time:
P48 / P49 (only with On/Off control outputs)
• Fan operation:
• Fan speed:
P52 (0 = disabled, 1 = enabled)
P53 (1 = 1-speed, 2 = 3-speed, 3 = DC 0...10 V)
• Control outputs DC 0...10 V: P46 = 2 (V1) P47 = 2 (V2)
Control outputs 2-position: P46 = 1 (V1) P47 = 1 (V2) (only with EC (DC) fan
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2-pipe and 2-stage applications
3.6.11 Setpoints and sequences
On changeover applications, the Comfort setpoints for heating and cooling sequence are the same (w).
On 2-pipe applications with electric heater, the Comfort setpoint is either at the first heating sequence (in heating mode) or at the cooling sequence (in cooling mode).
On 2-pipe applications with radiator, the Comfort setpoint is either at the radiator sequence (in heating mode) or at the cooling sequence (in cooling mode).
The setpoints for Economy and Protection mode are below the Comfort setpoints
(heating) and above the Comfort setpoints (cooling).
They can be set via parameters P11, P12 (Economy mode) and P65, P66
(Protection mode).
Application
2-stage heating or cooling
Y w
HeatProt w w
CoolProt w
HeatEco w
CoolEco
Comfort mode
Heating Cooling
T[°C]
Economy / Protection mode
Heating Cooling
Y Y Y
2-pipe
2-pipe and electric heater
W
Y
YE
2)
W
YR
Y
2-pipe and radiator
W
Y
T
T
T
Y
YE
1)
Y
YR
Y
W
W
W
T W
HeatEco/Prot
T
Y
YE
2)
Y
YE
1)
W
CoolEco/Prot
T
T
Y
W
HeatEco/Prot
YR
T W
HeatEco/Prot
W
CoolEco/Prot
T
Y
YR
T
Y
W
HeatEco/Prot
T
Y
W
HeatEco/Prot
W
CoolEco/Prot
T
W T
1) If P13 = ON
W T
W
HeatEco/Prot
T W
CoolEco/Prot
T
2) In case of manual changeover (P01 = 2), the first heating sequence is disabled to prevent heating
(electric heater) and cooling (coil) at the same time
W = setpoint in Comfort mode
W
HeatEco/Prot
= setpoint heating in Economy or Protection mode
W
CoolEco/Prot
= setpoint cooling in Economy or Protection mode
YR = radiator sequence
YE = electric heater sequence
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4-pipe applications
Application
On 4-pipe applications, the Comfort setpoint (w) is in the middle of the dead zone, between the heating and cooling sequence.
The dead zone can be adjusted via parameter P33.
If manual changeover is selected, then either the cooling sequence or the heating sequence is released. In this case, the Comfort setpoint is at the selected heating or cooling sequence.
Comfort mode
Economy /
Protection mode
Heating and cooling
P09 < P10 *)
Heating only
1)
or
Heating and cooling
P09 < P10 *)
Cooling only
1)
or
Heating and cooling
P09 >= P10 *)
Heating and/or cooling
4-pipe
4-pipe and electric heater
Y
Y
YE
W T
Y
Y
YE
W T
Y
Y
W T
Y
W
HeatEco/Prot
W
CoolEco/Prot
T
Y
YE
W T W
1) Manual changeover, P01 = 2
T W T
*) P09, P10 with software V1.20 and later, see section 3.3.1
W = setpoint in Comfort mode
W
HeatEco/Prot
= heating setpoint for Economy or Protection mode
W
CoolEco/Prot
= cooling setpoint for Economy or Protection mode
YE = electric heater sequence
W
HeatEco/Prot
W
CoolEco/Prot
T
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3.7 Control outputs
3.7.1 Overview
Overview of control outputs
Different control output signals are available. They need to be defined during commissioning (see below).
Control output PWM 3-position DC 0…10 V
Product no.
On/Off
RDG100KN Y1, Y2, Y3
(3 x NO)
Y1, Y3,
(2 x PWM)
Y1/Y2, Y3/Y4
(2 x / )
---
On/Off control signal
(2-position)
RDG160KN Q1, Q2,
(2 x NO)
--- --- Y10, Y20
The valve receives the OPEN/ON command via control output Y1 (Q1 on
RDG160KN) or Y3 (Q2 on RDG160KN) when…
1. the acquired room temperature is below the setpoint (heating mode) or above the setpoint (cooling mode).
2. the control outputs have been inactive for more than the "Minimum output
OFF-time" (factory setting 1 minute, adjustable via parameter P48).
OFF command when…
1. the acquired room temperature is above the setpoint (heating mode) or below the setpoint (cooling mode).
2. the valve has been active for more than the "Minimum output on-time" (factory setting 1 minute, adjustable via parameter P49).
Electric heater control
signal (On/Off)
The electric heater receives an ON command via the auxiliary heating control output (Y…, see Mounting Instructions) when…
1. the acquired room temperature is below the "Setpoint for electric heater"
2. the electric heater has been switched off for at least 1 minute
The OFF command for the electric heater is output when…
1. the acquired room temperature is above the setpoint (electric heater)
2. the electric heater has been switched on for at least 1 minute
Caution
3-position control signal
(RDG100KN only)
Note!
A safety limit thermostat (to prevent overtemperatures) must be provided externally.
On RDG160KN the electrical heater can be controlled via the 2-position output
(Q2) by setting P47 = 1. Adaptive temperature compensation: see 3.6.4.
Heating: Output Y1 provides the OPEN command, and Y2 the CLOSE command to the 3-position actuator. Cooling: Same with Y3 and Y4.
The factory setting for the actuator's running time is 150 seconds. It can be adjusted via parameters P44 (Y1 and Y2) or P45 (Y3 and Y4).
The parameters are only visible if 3-position is selected via DIP switches 4 and 5.
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Synchronization
PWM control
(RDG100KN only)
PWM for thermal valve actuators
DC 0...10 V for valve actuators
DC 0...10 V for electric heaters
Note!
Note!
PWM for electric heaters
Note!
DC 0...10 V control
Note!
1. When the thermostat is powered up, a closing command for the actuator running time + 150% is provided to ensure that the actuator fully closes and synchronizes to the control algorithm.
2. When the thermostat calculates the positions "fully close" or "fully open", the actuator's running time is extended + 150% to ensure the right actuator position is synchronized to the control algorithm.
3. After the actuator reaches the position calculated by the thermostat, a waiting time of 30 seconds is applied to stabilize the outputs.
The demand calculated by PI control from the current room temperature and setpoint is provided via Y1 and Y3 to the valve actuator as a PWM (pulse width modulation) signal for thermal actuators. The output is activated for a period proportional to the heating / cooling demand and then switched off for the rest of the PWM interval.
The interval is 150 seconds (factory setting). It can be adjusted via parameters
P44 (Y1) or P45 (Y3). These parameters are only visible if 2-position is selected via
DIP switches 4 and 5 and if PWM is selected via P46 and P47.
For PWM, the integral time (P35) must be set to 0.
For thermal valve actuators, set the running time to 240 seconds.
• Never apply PWM to a motorized actuator
• It is not possible to ensure exact parallel running of 2 or more thermal valve actuators. If several fan coil systems are controlled by the same room thermostat, preference should be given to motorized actuators with on / off or
3-position control
For electric heaters, set the running time to 90 seconds.
To avoid burn-off of mechanical contacts by frequent switching, use a current valve in place of a relay or contactor.
For PWM, the integral time (P35) must be set to 0.
This function is available with RDG160KN only.
The demand calculated by PI control from the current room temperature and setpoint is provided via Y10 and Y20 to the valve actuator as a continuous
DC 0...10 V signal.
• The demand calculated by PI control from the current room temperature and setpoint is provided via Y20 as a continuous DC 0...10 V signal.
• The signal converter (SEM61.4) converts the DC 0...10 V signal to AC 24 V
PDM pulses for the current valve.
• The current valve (SEA45.1) supplies the electric heater with pulsed current.
On RDG160KN the electrical heater can be controlled via the On/Off output (Q2)
by setting P47 = 1. Adaptive temperature compensation: see 3.6.4.
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Overview
L
G
G0
N
Siemens
Building Technologies
Y
N1
DC 0 ... 10 V
G Y E
PWM
AC 24 V
G0 Y1 G
Y1 G
U1
L
Q
Y1
K...
5.7 kW max.
FF
F...
N1 RDG160KN
U1 Signal converter SEM61.4 (see Data Sheet N5102)
Y1 Current valve SEA45.1 (see Data Sheet N4937)
K… Safety loop (e.g. safety thermostat and hightemperature cutout)
FF Very fast-acting fuse
F… Overcurrent trip
3.7.2 Control outputs configuration (setting via DIP switches
4/5 or tool, and parameters P46/P47)
ON / OFF
(2-position)
Applications with 3-speed / 1-speed fan
2-pipe
2-pipe and electric heater
2-pipe and radiator / floor heating
4-pipe
4-pipe and electric heater
2-stage, cooling or heating
Applications with DC 0…10 V (ECM) fan
2-pipe
2-pipe and electric heater
2-pipe and radiator / floor heating
4-pipe
2-stage, cooling or heating
Control outputs
Mod.
PWM
Mod.
3-pos.
() *
Mod.
DC 0…10 V
Available with product no.
* (only possible for 1 actuator)
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RDG100KN
RDG160KN
The type of the control outputs (2- or 3-position) is set via DIP switches 4 and 5.
The patterns of DIP switches 4 and 5 are as follows:
ON ON ON ON
OFF
1 2 3 4 5
OFF
1 2 3 4 5
OFF
1 2 3 4 5
OFF
1 2 3 4 5
Y1/Y2 =
Y3/Y4 =
Notes:
2-position
2-position
2-position
3-position
3-position
2-position
3-position
3-position
• If 2-position is selected, the factory setting is On/Off. If you want PWM (pulse width modulation), set parameters P46 and/or P47 to 2 = PWM.
• 4-pipe with electric heater: As the electric heater requires 1 of 4 outputs, only the cooling valve actuator can be 3-position.
• For commissioning via tool, all DIP switches have to be set to OFF.
Control outputs need to be set via tool in this case.
For details concerning connection of peripheral devices and setting of the DIP switches, refer to the Mounting Instructions M3191 [3].
Applications with DC 0...10 V (ECM) fan control (Y50) or without fan:
The type of valve actuator control outputs can be changed from DC 0...10 V
(factory setting) to On/Off.
Notes:
To select On/Off valve actuator control, set parameters P46 and/or P47 = 1.
Cooling: DC 0...10 V Y10 (P46 = 2, default), On/Off on Q1 (P46 = 1)
Heating: DC 0...10 V Y20 (P47 = 2, default), On/Off on Q2 (P47 = 1)
• For applications with 3-speed fan, only DC 0...10 V control outputs Y10, Y20 are available.
• Type of fan can be selected via P53 or DIP switch 4, see section 3.8.
• On/Off valve actuator control on applications without fan function – sequence of settings:
– Set DIP 4 to Off and P53 = 3.
– Disable the fan function via parameter P52 = 0
– Set valve actuators to On/Off via P46 and/or P47 = 1
• For commissioning via tool, all DIP switches have to be set to OFF.
Control outputs need to be set via tool in this case.
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Overview fan outputs
Selection fan output on RDG160KN
KNX
R
Fan command value
Enable fan command value
KNX
R
Fan operation
Fan stage 1-2-3
Fan output
3.8 Fan control
Different fan output signals are available depending on the thermostat type:
Control output
Product no.
On/off
1- / 3-speed fan
Modulating fan
DC 0…10 V
RDG100KN
RDG160KN
( ) Number of outputs
Q1,Q2,Q3 (3)
Q1,Q2,Q3 (3)
1)
Y50 (1)
1)
1) Selectable via P53 or DIP switch 4 on RDG160KN
Control type selected via
P53
P53, DIP 4
The fan operates in automatic mode or at the selected speed with manual mode.
In automatic mode, the fan speed depends on the setpoint and the current room temperature. When the room temperature reaches the setpoint, the control valve closes and the fan switches off or stays at fan speed 1 (min. fan speed) according to the setting of parameters P15 (RDG160KN: fan stage in dead zone) and P60
(fan kick).
Factory setting for "Fan in the dead zone":
• RDG100KN: Fan speed 1: (P60 = 0)
• RDG160KN: Fan speed OFF: (P15 = 0, P60 = OFF)
Only one fan output at a time is on, either Q1, Q2 or Q3.
The type of the fan output (DC 0...10 V, 3-speed or single-speed) can be set via
DIP switch 4, local HMI (P53) or tool (ACS, ETS).
If application is set via DIP switches and DIP 4 = Off :
• DC 0...10 V fan (ECM) on Y50 is selected
• Parameter P53 = 3 (ECM fan) can not be modified
• 3- / 1-speed fan output is not selectable
If application is set via DIP switches and DIP 4 = On
• 3-speed fan on Q1, Q2, Q3 is selected, parameter P53 = 2
• 1-speed fan (on Q1) can be selected via HMI (P53 = 1) or via tool (ACS, ETS)
• DC 0...10 V (ECM) fan output is not selectable
• 3-speed fan output is enabled only if the application has also been selected via DIP switches
If all DIP switches are Off (commissioning via tool ACS, ETS):
• Application and type of fan have to be set and downloaded via tool
• If ECM fan has been set, the type of fan output can not be modified via HMI
• If 3-speed or 1-speed has been selected, parameter P53 can be modified locally to P53 = 2 (3-speed) or P53 = 1 (1-speed)
The fan speed and mode can be changed via bus.
For this purpose, the fan command value needs to be enabled.
The fan speed and mode can be monitored via bus.
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3-speed fan control with modulating heating / cooling control
(PWM, 3-pos or
DC 0...10 V)
Heating / Cooling
1- or 3-speed fan
The individual switching points for ON of each fan stage can be adjusted via control parameters P55…P57. The fan speed switch off point is 20% below the switch on point. The diagrams below show fan speed control for modulating PI control.
Q3
Q2
Q1
Off
Y w
Q
Room temperature setpoint
Fan speed
Y
H
Control demand "Heating"
Y
C
Control demand "Cooling"
XpH Proportional band "Heating" (P30)
XpC Proportional band "Cooling" (P31)
X dz
Dead zone (P33)
Fan speed switching point high (P55)
Fan speed switching point med (P56)
Fan speed switching point low (P57)
Note: The diagram only shows the PI control's proportional part.
3-speed / ECM fan control with On/Off heating / cooling control
Heating / Cooling
1- or 3-speed fan
ECM fan
Q3
Q2
Q1
Y
On applications with 2-position control:
1) The switching point for low fan speed is synchronized to the heating / cooling output. Parameter "Switching point fan speed low" P57 is not relevant.
2) The maximum switching range of the fan (XpH
Fan
/ XpC
Fan
) is defined by the switching differential (SDH/SDC) via a look-up table.
T [°C] w
Q
Y
SDH
SDC
Xdz
Room temperature
Room temperature setpoint
Fan speed
Control command "Valve"
Switching differential "Heating" (P30)
Switching differential "Cooling" (P31)
Dead zone (P33)
XpH
Fan
Switching range for fan "Heating" (Table)
XpC
Fan
Switching range for fan "Cooling" (Table)
Fan 3-speed switching point high (P55)
Fan 3-speed switching point med (P56)
Fan_max Max. ECM fan speed (P55)
Fan_min Min. ECM fan speed (P56)
Look-up table with
On/Off control
SDH/SDC
XpH
Fan
/XpC
Fan
[K] 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 >4.5
[K] 2 3 4 5 6 7 8 9 10
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1-speed / 3-speed fan The thermostat can control a 1- or 3-speed fan (selected via control parameter
P53). A 1-speed fan is connected to terminal Q1, a 3-speed fan to terminals Q1,
Q2 and Q3.
When DC 0...10 V Fan and DC 0...10 V valve output control are selected, the fan switching points can be set via the following parameters:
Control sequence for DC 0...10 V fan
(ECM) and DC 0...10 V valves (RDG160KN)
– P55: ECM fan max. output
– P56: ECM fan min. output
– P57: Switching point fan
100%
0%
100%
Y
Q
XpH
Xdz w
XpC
Fan_on
T[°C]
Fan_max w
Q
Y
H
Y
C
XpH
XpC
Room temperature setpoint
Fan speed
Control demand "Heating"
Control demand "Cooling"
Proportional band "Heating" (P30)
Proportional band "Cooling" (P31)
X dz
Dead zone (P33)
Fan_max Max. fan speed (P55)
Fan_min Min. fan speed (P56)
Fan_min Fan_on Fan switch-on point (P57)
0%
T[°C]
Note
Manual operation
DC 0...10 V fan
Fan III
100%
=
Fan II
=
Fan I
0%
The diagram only shows the PI control’s proportional part.
Fan speed 1 = Min. fan speed
Fan speed 2 = half-way between Min. fan speed and Max. fan speed
Fan speed 3 = Max. fan speed
Q w
Fan_min
Fan_max
T[°C]
Note: The control signals
"Heating" and "Cooling" are not influenced by the manual setting of fan speeds.
Xdz
2 sequences heating / cooling
Fan operation as per heating / cooling mode, or disabled
Fan minimum on- time
For heating or cooling with 2 sequences (e.g. heating with a heating coil and an electric heater, or 2-stage cooling), the fan is always synchronized with the first sequence.
Fan operation can be limited to be active with cooling only or heating only, or even be totally disabled via control parameter "Fan operation" P52.
When fan operation is disabled, the fan symbol on the display disappears and pressing the fan button has no impact.
This function allows you to use the thermostat on universal applications such as
chilled / heated ceilings and radiator, etc. (see section 3.6.9).
In automatic mode, a dwelling time of 2 minutes (factory setting) is active. The fan maintains each speed for at least 2 minutes before it changes to the next speed. his minimum on-time can be adjusted from 1…6 minutes via parameter P59.
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Fan kick P60, P61
Fan operation in dead zone P15 (RDG160KN)
Fan start
In automatic fan mode and with the room temperature in the dead zone, the control valve is normally closed and the fan disabled. With the "Fan kick" function, the fan can be released from time to time at low speed for minimum on-time (see above) even if the valve is closed.
This function can be used to avoid damage from moisture due to a lack of air circulation, or to allow a return air temperature sensor to acquire the correct room temperature.
Y
Q1
0 t [h:mm]
Periodic fan kick Minimum on-time
Periodic fan kick Minimum on-time
The periodic fan kick time can be selected individually for Comfort mode via parameter P60, and for Economy mode via parameter P61.
Note: Fan kick value "0" means the fan runs continuously in the dead zone.
Fan kick value 1 and higher: value in minutes
Fan kick value "OFF" means the fan does not run in the dead zone.
Via parameter P15 in "Service Level", the fan speed in the dead zone (in Comfort mode) can be set according to customer preference.
The following options are available:
• Fan does not run in the dead zone (P15=0),
• Fan runs at low speed in Heating and Cooling mode (P15=1)
• Fan runs at low speed in Cooling mode only (P15=2)
The functions "Fan in dead zone" (P15) and "Fan kick" (P60) are combined as follows:
• P60 = 0
Fan runs continuously in the dead zone, P15 has no influence
• P60 = OFF Fan operation in dead zone according to P15
When the fan starts from standstill, it starts at speed 3 for 1 second to ensure safe fan motor start by overcoming inertia and friction (selected via parameter P58).
Q
1 sec
Q3
Q2
Q1
Fan overrun for electric heater
Fan failure
0
T
When the electric heater is switched off, the fan overruns for 60 seconds
(parameter P54) to avoid overtemperature of the electric heater or prevent the thermal cutout from responding.
In case of fan failure, the thermostat cannot protect the electric heater against overtemperature. For this reason, the electric heater must feature a separate safety device (thermal cutout).
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Clean fan filter reminder
KNX
R
Fault information
Fan in Auto Timer
mode
Fan start delay
The "Clean fan filter reminder" function counts the fan operating hours and displays message "FIL " to remind the user to change / clean the fan filter as soon as the threshold is reached. This does not impact the thermostat's operation, which continues to run normally. The function is set via parameter P62 (default = Off (0)).
The "Clean filter reminder" is reset when the operating mode is manually set to
Protection and back.
In Auto Timer mode , the default fan mode is automatic. The fan mode can be changed to Manual by pressing the FAN button. The fan returns to the automatic default mode after each switchover from Comfort to Economy mode, and vice versa.
To let the heating / cooling coil reach its temperature, the fan start can be delayed by a time period set via parameter P67.
RDG100KN SW version <= 1.24:
Function available for 2-position control outputs only.
Y
1
0
Q
T
P67
T
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KNX
R
KNX
R
Heating/ cooling changeover
KNX
Window state
R
KNX
R
Enable electric heater
3.9 Multifunctional input, digital input
The thermostat has 2 multifunctional inputs X1 and X2 and a digital input D1.
An NTC type sensor like the QAH11.1 (AI, analog input) or a switch (DI, digital input) can be connected to the input terminals. The functionality of the inputs can be configured via parameters P38 + P39 for X1, P40 + P41 for X2, and P42 + P43 for D1.
The current temperature or state of the inputs X1/X2 and D1 is available on bus for monitoring purposes.
The parameters can be set to the following values:
# Function of input
0 Not used
1 External / return air temperature
2 Heating / cooling changeover
Description
No function.
Sensor input for external room temperature sensor or return air temperature sensor to acquire the current room temperature, or floor heating temperature sensor to limit the heating output.
Note: The room temperature is acquired by the built-in sensor if the floor temperature limitation function is enabled via parameter P51.
Sensor input for "Automatic heating / cooling changeover" function.
A switch can also be connected rather than a sensor.
Important: Switch closed means always cooling, (this
cannot be changed), see section 3.5.
Type
X1/X2
--
AI
AI /
DI
Type
DI
--
--
DI
3 Operating mode switchover
4 Dew point monitor
5 Enable electric heater
Heating / cooling changeover is also possible via bus.
In this case, the function must not be assigned to any
local input X1, X2, D1. See also section 3.5.
Diagnostic value 0
˚C is displayed for closed contact /
100
˚C for open contact, if a switch is connected.
Digital input to switch over the operating mode to
Economy.
If the operating mode switchover contact is active, user operations are ineffective and "OFF" is displayed.
Operating mode switchover is also possible via bus.
In this case, the function must not be assigned to any
local input X1, X2, D1. See also section 3.2.
Digital input for a dew point sensor to detect condensation. Cooling is stopped if condensation occurs.
Digital input to enable / disable the electric heater via remote control.
Enable electric heater is also possible via bus. In this case, the function must not be assigned to any local
input X1, X2, D1. See also section 3.6.
DI
DI
DI
DI
DI
DI
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# Function of input
Description Type
X1/X2
Type
DI
KNX
R
Fault information
KNX
R
D1, X1, X2
(Digital)
6 Fault Digital input to signal an external fault (example: dirty air filter).
If the input is active, "ALx" is displayed and a fault is
sent on the bus. See also section 3.11.8.
(Alarm x, with x = 1 for X1, x = 2 for X2, x = 3 for D1).
Note: Fault displays have no impact on the thermostat's operation. They merely represent a visual signal.
Digital input to monitor the state of an external switch via bus.
DI DI
KNX
R
X1, X2
(Temp.)
7 Monitor input
(Digital)
8 Monitor input
(Temperature)
Sensor input to monitor the state of an external sensor (e.g. QAH11.1) via bus.
DI
AI
DI
--
KNX
X1, X2
(Temp.)
R
9 Supply air temperature
Sensor input to acquire the supply air temperature.
The thermostat controls the room temperature via the
AI -- limitation
(RDG160KN only) built-in sensor. The control output (DC 0...10 V) is reduced if the supply air temperature exceeds the min
/ max limits (P63, P64).
• Operational action can be changed between normally open (NO) and normally closed (NC) via parameter P39, P41 (or P43 if it is a digital input).
• Each input X1, X2 or D1 must be configured with a different function (1…5).
Exception: 1, 2 or 3 inputs can be configured as fault (6) or monitor input (7,8).
• X1 is factory-set to "External sensor" (1), X2 to "Not used" (0), and D1 to
"Operating mode switchover" (3).
For more detailed information, refer to section 3.4 "Applications".
Installation note:
• For inputs X1, X2, or D1, one physical switch can be used for up to 20 thermostats (parallel connection).
Caution! DO NOT mix X1 / X2 (mains potential on RDG100KN) and D1.
• For sensors on inputs X1, X2, or D1, the cable length is max. 80 m.
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Temperature out of range
Fault "Er1" on display
KNX
R
Definitions
3.10 Handling faults
When the room temperature is outside the measuring range, i.e. above 49 °C or below 0 °C, the limiting temperatures blink, e.g. "0 °C" or "49 °C".
In addition, the heating output is activated if the current setpoint is not set to "OFF", the thermostat is in heating mode and the temperature is below 0 °C.
For all other cases, no output is activated.
The thermostat resumes Comfort mode after the temperature returns to within the measuring range.
When the built-in sensor fails and no external sensor is connected, the thermostat shows the fault message "Er1" on the display. The thermostat needs to be replaces if the room temperature needs to be measured with the built-in sensor.
For fault status messages on the bus, see section 3.11.8.
3.11 KNX communications
The RDG KNX thermostats support communications as per the KNX specification.
S-mode Standard mode; engineering via group addresses.
LTE mode Logical Tag Extended mode, for easy engineering, is used in conjunction with Synco.
3.11.1 S-mode
This mode corresponds to KNX communications.
Connections are established via ETS by assigning communication objects to group addresses.
3.11.2 LTE mode
LTE mode was specifically designed to simplify engineering. Unlike with S-mode, there is no need to create the individual connections (group addresses) in the tool.
The devices autonomously establish connections.
To make this possible, the following circumstances are predefined:
• Every device or subdevice is located within a zone
• Every data point (input or output) is assigned to a zone
• Every data point (input or output) has a precisely defined "name"
Whenever an output and an input with the same "name" are located in the same zone, a connection is established automatically, as shown in the following diagram.
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Time Switch
Geogr. zone 2.5.1 or 2.1.1
Operating mode
RDG
Geogr. zone 2.5.1
Room temperature
Operating mode
Refr. distr zone 1
Cool demand
Chiller
Refr. distr zone 1
Cool demand
Heat distr zone 1
Heat demand
Boiler
Heat distr zone 1
Heat demand
Engineering and commissioning
Sensor
Outside temperature zone 31
Outside temperature
Outside temperature zone 31
Outside temperature
• For a detailed description of KNX (topology, bus supply, function and setting of
LTE zones, filter tables, etc.), see "Communication via the KNX bus for Synco
700, 900 and RXB/RXL, Basic Documentation" [6].
• LTE mode data points and settings are described in the Synco Application
Manual [12].
• To engineer and commission a specific system, use the Synco700 planning and commissioning protocol (XLS table in HIT, [7]).
3.11.3 Zone addressing in LTE mode (in conjunction with
Synco)
In cases where RDG KNX room thermostats are used in LTE mode (e.g. in conjunction with Synco), zone addresses need to be allocated.
The following zone address must be defined together with the Synco devices at the planning stage depending on the application.
Short description Factory setting
Geographical zone (apartment)
Geographical zone (room)
Heat distr zone heating coil
Refr distr zone cooling coil
--- (out of service)
1
1
1
Heat distr zone heating surface 2
Note: "Subzone" of "Geographical zone" is fix 1 (not adjustable)
Parameter
P82
P83
P84
P85
P86
The device will send and receive LTE communication signals only if the zone address is valid (not OSV = out of service).
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The zones to be defined are as follows:
Geographical zone
(space zone)
(Apartment . Room . Subzone)
Apartment = ---, 1...126
Room = ---, 1...63
Subzone = fix 1
Heat distribution zone heating coil
Zone = ---, 1...31
Zone in which an RDG KNX thermostat is physically located. Other room-specific devices may also be located in this zone.
Information exchanged in this zone is related specifically to the device like operating mode, setpoints, room temperature, etc.
The designations "Apartment", "Room" and "Subzone" do not need to be taken literally. For example, Apartment can be used to refer to a group of rooms, floor or section of a building. "Room", however, really does refer to a room.
Subzone is not used for HVAC devices. It is more relevant to other disciplines, such as lighting. Subzone is fix at "1" and not visible.
The time switch information is expected from the same zone where the thermostat is located (Residential).
If no time switch information is received from the same zone, the thermostat will use the information received from the same apartment but with room "1" A.1.1 (Office).
Example:
Commercial building
In a commercial building, the time switch information is sent by the RMB975 central control unit.
The zones are divided in so called "Room groups" (e.g. 1...4), where each "Room group" can have an individual schedule. A room thermostat in the same
"Room group" need to have the same Apartment Address.
D: 10
G: 1.1.1
1
D: 11
G: 1.2.1
Office 1
2
Legend:
D = device address (P81)
G = geographical zone (P82, P83)
(Apartment.Room.Subzone)
D: 002
G: 2.1.1
D: 004
G: 4.1.1
4
Server room
Corridor
D: 003
G: 2.2.1
Office 2
2
D: 12
G: 1.3.1
Meeting room
3
D: 001
G: 3.1.1
Information related specifically to the hot water system in heating coils is exchanged within this zone. The zone also includes a Synco device to process the information (e.g. RMH7xx or RMU7xx with changeover).
Heat distribution zone heating surface
(radiator)
Zone = ---, 1...31
Refrigeration distribution zone cooling coil
Zone = ---, 1...31
Outside temperature zone
Zone = fix 1 (SW < V1.20)
= fix 31 (SW >= V1.20)
Information related specifically to the hot water system of a radiator is exchanged within this zone (e.g. heating demand). This zone also includes a Synco device to process the information (e.g. RMH7xx or
RMB795).
Information related specifically to the chilled water system is exchanged within this zone (e.g. cooling demand). This zone also includes a Synco device to process the information (e.g. RMU7xx).
Outside temperature received in outside temperature zone 31 will be / can be displayed on the room thermostat when commissioned accordingly (parameter P07 = 2).
With SW < V1.20: Zone = 1.
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3.11.4 Example of heating and cooling demand zone
The building is equipped with Synco controls on the generation side and RDF /
RDG thermostats on the room side.
RMH760 RMB795 RDF...
RDU...
Konnex TP1
RDG...
RMH760
Controller 1 Controller 2 Controller 3 Controller 4 Controller 5 Controller 6
T
V M
2
T T
T
T T
T
Heat source
Heat requistion
DHW heating
1
Heating circuit fan coil
Heat demand
Heat requistion
Heat demand
Fan coil room A
Heat demand
VAV box room B
Heat demand
Fan coil room C
Heat demand
Heat distr zone 1
Heat distr zone source side: 1
Heat distr zone 2
Heat distr zone 2 Heat distr zone 2 Heat distr zone 2
Setting values
Controller 1
Explanation relating to the illustration
Notes:
Controller 2 Controller 3 Controller 4 Controller 5 Controller 6
In the case of a typical application, the individual RDF / RDG room thermostats send their heat demand to the primary controller (in the above example to the
RMH760).
(1) and (2) designate the numbers of the distribution zone.
• This type of application can analogously be applied to refrigeration distribution zones.
• If no 2-pipe fan coil is used, heat and refrigeration demand signals are sent simultaneously to the primary plant.
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LTE mode / S-mode
Reducing the bus load
3.11.5 Send heartbeat and receive timeout
In a KNX network, S-mode and LTE mode communication objects can be exchanged between individual devices. The Receive timeout defines the period of time within which all the communication objects requested from a device must have been received at least once. If a communication object is not received within this period, a predefined value is used.
Similarly, the Send heartbeat defines the period of time within which all the communication objects requested must be transmitted at least once.
Fixed times are specified as follows:
– Receive timeout: 31 minutes
– Send heartbeat: 15 minutes
Individual zones can also be disabled (out of service) via control parameter if they are not being used. In disabled zones, the LTE signal will no longer be periodically sent, and will therefore reduce bus load.
3.11.6 Startup
Startup response
Startup delay
KNX
R
Heating output primary
Heating output secondary
Cooling output primary
Cooling output secondary
The application is restarted after every reset, so that all the connected motorized
valve actuators are synchronized (see "Control outputs", 3.7).
After a reset, it takes up to 5 minutes for all the connected room thermostats to restart. This is designed to avoid overloading the mains power supply when restarting. At the same time, it reduces the load on the KNX network, as not all thermostats transmit data at the same time. The delay (T
WaitDevice
) is determined by the thermostat's device address. After the delay, the device starts to send.
3.11.7 Heating and cooling demand
In conjunction with Synco, the heating and/or cooling demand from each room is transmitted to the BACS to provide the required heating or cooling energy.
An example for LTE mode is described in section 3.11.4.
In S-mode, the current state signals of the control outputs are available.
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3.11.8 Fault function on KNX
If a fault occurs (e.g. digital fault input, dew point, communication configuration, etc.) then a fault will be sent on the bus.
An RDG thermostat listens on the bus and sends its fault when the fault has the highest alarm priority. This ensures that the management station does not miss any alarms.
If alarms occur at the same time, the alarm with the highest priority will be first displayed and sent on the bus.
Fault transmission is different in LTE mode and S-mode:
KNX
R
Priority of alarms
KNX
R
Fault transmission
Prio Fault
-
1
S-mode LTE mode
Fault state
Fault information
(internal information)
Alarm info (error code + internal information)
Alarm text (default text can be edited with ACS tool)
The table below shows the error code and default alarm texts.
Thermostat Fault information on bus
No fault
Bus power supply**)
Display
---
BUS
BUSF
Error code Default fault text
0
5000
No fault
No bus power supply
Text adjustable *)
---
2
3
4
5
6
7
Device address error Addr 6001 >1 id device address ---
Condensation
External fault input X1 AL1
4930
9001
Condensation in the room
Fault input 1
External fault input X2
External fault input D1
AL2
AL3
9002
9003
Fault input 2
Fault input 3
Clean filter reminder FIL 3911 Dirty filter
*) Default alarm texts are stored in the thermostat’s non-volatile memory and can be adjusted using the ACS commissioning tool
**) This error will not be sent on bus (because there is no bus, not enough bus power supply, bus is overloaded or bus signal is distorted)
• Priority order is #1…7
• External faults #4…6: If faults are active, the display will show AL1, AL2, AL3, alternating. On the bus, only the fault with the highest priority will be sent
A supervisor alarm system may command the thermostat to stop sending faults to the bus via the communication object "Fault transmission" (disable / enable).
This has no impact on the local display of faults.
After a timeout of 48 hours, the sending of faults will automatically be enabled again.
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3.12 Communication objects (S-mode)
3.12.1 Overview
KNX
R
Page
Object # and name
1 System time
3 Time of day
44 Outside temperature
12 Room operating mode:
Time switch 1)
7 Room operating mode:
Preselection 1)
20 Room operating mode:
Window state
22 Room temperature:
Comfort basic setpoint
23 Room temperature:
Comfort setpoint
31 Application mode
32 Enable fan command value
Thermostat
RDG
Object # and name
21 Room temperature
16 Room operating mode:
State 1)
24 Room temperature:
Current setpoint
33 Fan operation
(0 = Auto / 1 = Manual)
35 Fan output
36 Fan stage 1
37 Fan stage 2
Page
34 Fan command value
29 Enable electric heater
30 Heating/cooling changeover
6 Fault transmission
1)
2)
Input communication object
Output communication object
Input & output communication object
8-bit and 1-bit object available, selectable via parameter in ETS
Availability depending on selected application / function
38 Fan stage 3
25 Heating output primary 2)
26 Heating output secondary
2)
27 Cooling output primary 2)
28 Cooling output secondary 2)
43 D1
39/40 X1 (temperature / digital)
41/42 X2 (temperature / digital)
5 Fault state
4 Fault information
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3.12.2 Description of communication objects
Obj Object name Function Type/ length Flags
1 System time Time and date
19.001
8 Byte
CWU
System time for display on the room thermostat. See parameter
P07 (3 or 4)
3 Time of day Time and date
10.001
3 Byte
CWU
Another object for receiving the time of day for display on the room thermostat. See parameter P07 (3 or 4)
4 Fault information Alarm
Info
219.001
6 Byte
CT
Common alarm output. If an alarm occurs, the alarm number is transmitted
5 Fault state Faulty / normal
1.005
1 bit
CT
Common alarm output. If an alarm occurs, the alarm flag is set
6 Fault Enable / 1.003 CWU transmission disable 1 bit
A supervisor alarm system can disable the broadcasting of alarms by the devices. This has no impact on the local display of alarms.
After a timeout of 48 hours, the sending of faults will automatically be enabled again.
7 Room operating mode:
Preselection
Auto
Comfort
PreComf.
Economy
Protection
20.102
1 Byte
CWTU
Controls the room operating mode selection of the thermostat via bus.
The command can also be submitted as four 1-bit communication objects (8...11). The last interaction wins – either from local operating mode button or via bus.
Note: The thermostat will transform Precomfort either into
Economy or Comfort (selectable via P88).
8
9
10
11
Operating mode:
Preselection
Auto
Comf
Eco
Prot
Trigger 1.017
1 bit
CW
Switch room operating mode to either Auto, Comfort, Economy or
Protection.
The last interaction wins – either from the local operating mode button or via bus.
12 Room operating mode: Time switch
Comfort
Economy
PreComf.
20.102
1 Byte
CWU
Protection
This information is provided by a central time switch or a supervisor and defines the actual HVAC operating mode.
The command can also be submitted via three 1-bit communication objects (13...15).
Protection has the highest priority and cannot be overridden.
Note: The thermostat will transform Precomfort either into
Economy or Comfort (selectable P88).
13
14
15
Time switch
Comfort
Economy
Protection
Trigger 1.017
1 bit
CW
Switch the HVAC mode to either Comfort, Economy or Protection mode.
Obj Object name Function Type/ length Flags
16 Room operating mode: State
Comfort
Economy
Protection
20.102
1 Byte
CRT
Effective room operating mode used by the thermostat
(considering time switch, user selection, window contact, etc.) This state information is available via one 8-bit enumeration or three 1bit communication objects (17...19). Note: The thermostat does not support Precomfort.
17
18
19
Room operating mode:
State Comfort
State Economy
State Protection
ON
OFF
1.002
1 bit
Corresponding communication object sends "True"
CT
20 Window state Open
Closed
1.019
1 bit
CWU
The thermostat is set to Economy mode if value "1" (open) is received. It switches back to the previous mode when the value is
"0" (closed).
"Window state" is sent e.g by a KNX switch or a KNX presence detector. It has the same effect as the local operating mode switchover contact X1, X2, D1 (parameter P38, P40, P42).
Only one input source must be used, either local input X1/X2/D1 or
KNX bus.
21 Room temperature
Temp. value
9.001
2 Bytes
The value of the room temperature measured via built-in or external sensor is available via this communication object.
CRT
22 Room temperature: Comfort basic setpoint
Temp. value
9.001
2 Bytes
CWU
If function "Temporary setpoint" is enabled via parameter P69, then after an operating mode change, the setpoint adjustments made by the user and via communication object 23 will be dismissed and the thermostat will be reset to the Comfort basic setpoint.
Note: Setpoints that have been changed via the local HMI may be overwritten during a system startup from a central master controller, e.g.RMB795.
The Comfort basic setpoint is stored in EEPROM (see section
The service life of the EEPROM depends on the number of write cycles. Never write this communication object cyclically!
23 Room temperature:
Comfort setpoint
Temp. value
9.001
2 Bytes
CWTU
Communication object used to shift the setpoint used by the
thermostat (see section 3.3.2). Same priority as local setpoint shift
on the thermostat. The last intervention wins.
Note: The Comfort basic setpoint (object 22) will not be changed.
24 Current setpoint Temp. value
9.001
2 Bytes
CRT
Current setpoint, including shift, compensation, etc., used by the thermostat for temperature control.
25 Heating output primary
0…100 % 5.001
8 bit
CRT
Indicates the position of the heating actuator of first stage.
E.g. 2-pipe with electric heater application: Output of heating coil.
26 Heating output secondary
0…100% 5.001
8 bit
CRT
Indicates the position of the heating actuator of the second stage.
E.g. 2-pipe with electric heater application: Output of the electric heater.
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Obj Object name Function Type/ length Flags
27 Cooling output primary
0…100% 5.001
8 bit
CRT
Indicates the position of the cooling actuator of the first stage.
E.g. 2-pipe with electric heater application: Output of the cooling coil.
28 Cooling output secondary
0…100% 5.001
8 bit
CRT
Indicates the position of the cooling actuator of the second stage.
E.g. 2-stage changeover application: Output of the second cooling stage.
29 Enable electric heating
Enable / disable
1.003
1 bit
CWU
An electric heater can be disabled with this communication object
(e.g. to meet tariff regulations).
The same function is also available via local multifunctional input
X1/X2/D1 (parameter P38, P40, P42).
Only one input source must be used, either local input X1/X2/D1or
KNX bus.
30 Heating / cooling changeover
Heat /
Cool
1.100
1 bit
CWU
Changeover information transmitted via bus.
Default: Current mode before power down.
The same function is also available via local multifunctional input
X1/X2/D1 (parameter P38, P40, P42).
Only one input source must be used, either local input X1/X2/D1or
KNX bus..
31 Application mode HVAC control mode
20.105
8 bit
CWU
0 Auto (default)
1 Heat
2 Morning warmup*
3 Cool
5 Precool*
6 OFF
8 Emergency heat*
Heating and/or cooling
Heating only
Heating only
Cooling only
Cooling only
Neither heating nor cooling
Heating only
9 Fan only Fan runs at high speed
* Function handled like Heat (1) or Cool (3)
32 Enable fan command value
Enable
Disable
1.003
1 bit
CWU
Set fan mode to Auto (disable) or Manual (enable) by a KNX control unit. If Manual, the value received on Fan command value
(34) will be used to command the fan speed.
Default: Enable
The last interaction wins – either from the local fan mode button or via bus.
Obj Object name Function Type/ length Flags
33 Fan operation Auto
Manual
1.001
1 bit
Indicates the status of the fan mode: Auto (0) or Manual (1).
CRT
34 Fan command value
0…100% 5.001
8 bit
CWU
The fan can be set to a specified speed by a KNX control unit when manual fan operation is enabled.
Speed
1
2
3
Fan command value (physical KNX value)
1...33% (1…85)
34…67% (86...170)
68…100% (171…255)
Fan speed "0" is not supported by the thermostat and the fan speed will remain unchanged.
CRT 35 Fan output 0…100% 5.001
8 bit
Indicates the current fan speed as a value 0...100%
Speed Fan output (physical KNX value)
OFF
1
2
3
0%
33%
66%
(0)
(84 )
(186)
100% (255)
36
37
38
Fan speed 1
Fan speed 2
Fan speed 3
ON
OFF
Indicate the state of the relay outputs
1.001
1 bit
CRT
39
40
X1: Temperature
X2: Temperature
Temp. value
9.001
2 Byte
CRT
Indicate the values of the temperature sensors connected to the local inputs X1 / X2
41
42
43
X1: Digital
X2: Digital
D1: Digital
ON
OFF
1.001
1 bit
CRT
Indicate the status of the digital inputs (adjusted by parameters
P39/P41/P43) including considering of operating action
44 Outside temperature
Temp. value
9.001
2 Byte
CWU
The outside temperature measured by a KNX sensor can be displayed on the thermostat, if parameter P07 "Additional user information" is set = 2 (outside temperature).
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Room operating mode:
Time switch
Application mode
Room operating mode:
Preselection
Comfort setpoint
Setpoints heating
Setpoints cooling
Fan speed
Setpoint shift heating
Setpoint shift cooling
Heating/Cooling changeover
Outside temperature
3.13 Communication objects (LTE-mode)
RDG
Geographical zone
A.R.S
(Time switch zone)
X.1.1 / X.Y.1
Geographical zone
A.R.S
X.Y.1
Heat distr. zone heating coil
Ref. distr. zone cooling coil
Heat distr. zone heating surface
Fault transmission
Broadcast
Outside air temp. zone fix 31
Room temperature output
Heating coil energy demand
Cooling coil energy demand
Energy demand heating surface
Fault information
Fault text
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Enter only "Service level"
Enter "Expert level" and "Diagnostics & test"
Adjust parameters
Reset parameters
3.14 Control parameters
A number of control parameters can be readjusted to optimize control performance.
This can be done on the thermostat via HMI or via commissioning / operating tool.
These parameters can also be set during operation without opening the unit.
In the event of a power failure, all control parameter settings are retained.
The control parameters are assigned to 2 levels:
• "Service level", and
• "Expert level" including communications, diagnostics and test
The "Service level" contains a small set of parameters to set up the thermostat for the HVAC system and to adjust the user interface. These parameters can be adjusted any time.
Change parameters at the "Expert level" carefully, as they impact the thermostat’s control performance and functionality.
3.14.1 Parameter setting via local HMI
1. Press left and right button simultaneously for 4 seconds.
Release and press the right button again within 2 seconds until the display shows "P01".
Continue with step 2.
1. Press left button and right button simultaneously for 4 seconds.
Release and press the left button again within 2 seconds until the temperature disappears.
Turn the rotary knob counterclockwise min. ½ rotation.
The display shows "Pxx".
Continue with step 2.
2. Select the required parameter by turning the rotary knob.
3. Press button (OK); the current value of the selected parameter starts blinking and can be changed by turning the rotary knob.
4. Press button (OK) to confirm the adjusted value or press button (Esc) to cancel the change.
5. If you wish to adjust additional parameters, repeat steps 2…4.
6. Press button (Esc) to leave the parameter setting mode.
The factory setting for the control parameters can be reloaded via parameter P71, by changing the value to "ON". Confirm by pressing the right button.
The display shows "8888" during reloading.
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ACS
OZW772 Web server,
RMZ792 bus operator unit
ETS
Notes
Connecting a KNX tool
3.14.2 Parameter setting / download via tool
Control parameters can be adjusted via bus either by parameter download during commissioning or during normal operation with a tool like ACS.
With the ACS tool, the parameters can be changed…
– during commissioning via parameter download (all parameters)
– during normal operation via Popcard (most of the parameters)
Most parameters can be changed during normal operation using the OZW772 web server or the RMZ792 bus operator unit.
ETS is an engineering tool and can be used for the full commissioning of the RDG
KNX thermostats. Device address, application, and control parameters can be defined and downloaded via ETS.
• Setting RDG KNX parameters is only supported by ETS4 or higher / ACS version 5.11 or higher.
• The RDG KNX thermostats (without ETS parameter download) require version
ETS3f or higher / ACS version 5.11 or higher.
Connecting a KNX commissioning / operating tool to the RDG is described in
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Name
3.14.3 Parameters of the "Service level"
Factory setting Range
Service level
P01 Control sequence
P02 Operation via room op selector
P03 Operation via fan op selector
P04 Unit
P05 Measured value correction
P06 Standard display
P07 Additional display information
P08 Comfort basic setpoint
P09 Comfort setpoint minimum
P10 Comfort setpoint maximum
P11 Economy heating setpoint
P12 Economy cooling setpoint
P13 Electric heater when cooling
P14 Button lock
2-pipe:
1 = Cooling only
4-pipe:
4 = Heating and Cooling
1
P15 Fan stage in dead zone (Comfort) 0
Note:
0
C (0)
0 K
0
0
21 °C
5 °C
35 °C
15 °C
30 °C
ON
0
0 = Heating only
1 = Cooling only
2 = H/C changeover manual
3 = H/C changeover auto
4 = Heating and Cooling
1 = Auto – Protection
2 = Auto - Comfort - Economy -
Protection
0 = Auto - Manual
1 = Manual
2 = Auto - Manual - Protection
C = ° Celsius
F = ° Fahrenheit
– 3 ... 3 K
0 = Room temperature
1 = Setpoint
0 = --- (No display)
1 = °C and °F
2 = Outside temperature (via bus)
3 = Time of day (12h) (via bus)
4 = Time of day (24h) (via bus)
5 ... 40 °C
5 ... 40 °C
5 ... 40 °C
OFF, 5 ... WCoolEco;
WCoolEco = 40 °C max
OFF, WHeatEco ... 40 °C;
WHeatEco = 5C min
ON: Enabled
OFF: Disabled
0 = Unlocked
1 = Auto lock
2 = Manual lock
0 = Disabled
1 = Low speed (Heat and Cool)
2 = Low speed (Cooling only)
P01
P52
Appl
x
Parameter display depends on selected application and function.
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Name
3.14.4 Parameters of the "Expert level with diagnostics and test"
Factory setting Range
Expert level
P30 Heat P-band Xp / switching diff
P31 Cool P-band Xp / switching diff
2 K
1 K
0.5 … 6 K
0.5 … 6 K
P32
P33
P36
P37
P39
Radiator P-band Xp / swi diff
Dead zone Comfort mode
P34 Setpoint differential
Normal position input X1
2 K
2 K
2 K
P35 Integral action time Tn, RDG100KN 5 min
RDG160KN 45 min
H/C ch'over swi point cooling
H/C ch'over swi point heating
P38 Input X1
RDG100KN (range 0..8)
RDG160KN (range 0..9)
16 °C
28 °C
1: = Ext. sensor
0 (N.O.)
0.5 … 6 K
0.5 … 5 K
0.5 … 5 K
0…10 min
0...120 min
10…25 °C
27…40 °C
0 = --- (no function)
1 = Room temp ext. sensor /
Return air temp (AI)
2 = H/C changeover (AI/DI)
3 = Operating mode contact (DI)
4 = Dew point sensor (DI)
5 = Enable electric heater (DI)
6 = Fault input (DI)
7 = Monitor input (Digital)
8 = Monitor input (Temp)
9 = Supply air sensor
0 = Normally open / Open
1 = Normally closed / Close
P40
P41
P42
P43
Input X2
RDG100KN (range 0..8)
RDG160KN (range 0..9)
Normal position input X2
Input D1
Normal position input D1
P44 Actuator running time Y1/Y2
P45 Actuator running time Y3/Y4
P46 Output Y1/Y2
0 = no function
0 (N.O.) 0 = Normally open / Open
1 = Normally closed / Close
3 = Op mode contact 0 = --- (no function)
2 = H/C changeover (DI)
3 = Operating mode contact (DI)
4 = Dew point sensor (DI)
5 = Enable electric heater (DI)
6 = Fault input (DI)
7 = Monitor input (Digital)
0 (N.O.)
0 = --- (no function)
1 = Room temp ext. sensor /
Return air temp (AI)
2 = H/C changeover (AI/DI)
3 = Operating mode contact (DI)
4 = Dew point sensor (DI)
5 = Enable electric heater (DI)
6 = Fault input (DI)
7 = Monitor input (Digital)
8 = Monitor input (Temp)
9 = Supply air sensor
150 s
150 s
P45 Power of electric heater on Q2 (for adaptive temperature compensation)
0 kW
On/Off (1)
0 = Normally open / Open
1 = Normally closed / Close
20…300 sec
20…300 sec
0.0 ….. 1.2 kW
0 = 3-position
1 = On/Off
2 = PWM
P46 Outputs Y10 (DC) or Q1 (2-pos) 2 = DC 0...10 V
P47
P47
P48
Output Y3/Y4
Outputs Y20 (DC) or Q2 (2.pos)
On time minimum 2-pos output
On/Off (1)
2 = DC 0...10 V
1 min.
1 = On/Off
2 = DC 0...10 V
0 = 3-position
1 = On/Off
2 = PWM
1 = On/Off
2 = DC 0...10 V
1...20 min
Appl
Appl
Appl
x P46, P47 x P46, P47
P38, P40
P38, P40
P38
P40
P42
x P46
x P47 x
x Appl x
Appl
x Appl x
Appl
P46
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Name Factory setting Range
Expert level
P49 Off time minimum 2-pos output
P50 Purge time
P51 Flow temp limit floor heating
P52 Fan control
P53 Fan speeds RDG100KN
P53 Fan speeds RDG160KN
P54 Fan overrun time
P55 Fan speed switching point high
ECM fan max. output
P56 Fan speed switching point med
ECM fan min. output
P57 Fan speed switching point low
ECM: Switching point fan
P58 Fan start kick
1 min.
OFF
OFF
1 = Enabled
2 = 3-speed
3 = DC 0...10 V
60 sec
100%
ECM: 80%
65%
ECM: 30%
10%
ECM:10%
ON
1...20 min
OFF: Not active
1…5 min: Active with selected duration
OFF, 10...50 °C
0 = Disabled
1 = Enabled
2 = Heating only
3 = Cooling only
1 = 1-speed
2 = 3-speed
1 = 1-speed fan
2 = 3-speed fan
3 = DC 0...10 V (ECM fan)
0...360 sec
80...100%
ECM: fan min…100%
30..75%
ECM: 1%...fan max.
1...15%
ECM: 1..100%
ON: Enabled
OFF: Disabled
1...6 min
0…89 min, OFF
P47
P38, P40
P38, P40
x P52 x
P52
P52, Appl
P52, P53, DIP x
P52, P53, DIP
P52, P53, DIP x P52, P53, DIP
P52, P53, DIP x P52, P53, DIP
P52
P59 On time minimum fan 2 min
P60 Periodic fan kick Comfort RDG100KN 0
RDG160KN OFF
P61 Periodic fan kick Eco OFF
P62 Service filter
P63 Minimum supply air temperature
OFF
OFF
P64 Maximum supply air temperature
P65 Protection heating setpoint
OFF
8 °C
P66 Protection cooling setpoint OFF
P67 Fan start delay RDG100KN 0 s
RDG160KN
P68 Temporary Comfort mode
P69 Temporary Comfort setpoint
0 (= OFF)
OFF
P71 Restore factory setting
P74 Output Q3 function
Note:
OFF
0
0…359 min, OFF
Off, 100…9900 h
OFF, 0…P64 °C
OFF, P63 … 50°C
OFF, 5…WCoolProt;
WCoolProt = 40 °C max
OFF, WHeatProt… 40;
WHeatProt = 5°C min
0...180 s
0...360 s
0...360 min
OFF = Disabled
ON = Enabled
OFF = Disabled
ON = Reload start
"8888" is displayed for 3s during reload process
0 = No function
1= Switch OFF in Protection
P52
P52
P52
P52 x P38, P40 x P38, P40
P52, P46, P47
P02
x
P45: To compensate for heat dissipation of the el. heater relay in RDG160KN.
P46, P47: Setting to 2-position or 3-position is made with DIP switches 4 and 5.
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Name Factory setting Range
Communications
P81 Device address 1) 255
P82 Geographical zone (apartment) 2) ---
P83 Geographical zone (room) 2) 1
P84 Heat distr zone heating coil
P85 Refrig distr zone cooling coil
---
---
P86 Heat distr zone heating surface
P88 Transformation Precomfort
---
0
1…255
---, 1...126
---, 1...63
---, 1...31
---, 1...31
---, 1...31
0 = Economy
1 = Comfort
Appl, P01
Appl, P01
Appl
1) Physical address = Area.Line.DeviceAddress. Factory setting of Area = 0, Line = 2.
Can be changed by special management service e.g. from line coupler or via ACS commissioning tool.
2) Type = geographical zone A.R.S. In RDG sub zone = fixed value 1.
Name Range d01 d02 d03 d04 d05 d06 d07 d10
Diagnostics & test
Application number
X1 state
X2 state
D1 state
Test mode for checking the Y1/Y2 actuator's running direction 3)
Test mode for checking the Y3/Y4 actuator's running direction 3)
Software version
Test mode for checking the Q3 output (P74 function)
(RDG160KN)
0 = (No application)
1 = 2-pipe
2 = 2-pipe with electric heater
3 = 2-pipe with radiator
4 = 4-pipe
5 = 2-stage heating or cooling
6 = 4-pipe with electric heater
"---" = function not selected
0 = Not activated (for DI)
1 = Activated (DI)
0…49 °C = Current temp. value (for AI)
00 = H/C Input shorted
100 = H/C Input open
"---" = function not selected
0 = Not activated (for DI)
1 = Activated (DI)
0…49 °C = Current temp. value (for AI)
00 = H/C Input shorted
100 = H/C Input open
"---" = function not selected
0 = Not activated (for DI)
1 = Activated (DI)
00 = H/C Input shorted
100 = H/C Input open
"---" = no signal on outputs Y1 and Y2
OPE = output Y1 forced opening
CLO = output Y2 forced closing
"---" = no signal on outputs Y3 and Y4
OPE = output Y3 forced opening
CLO = output Y4 forced closing
Ux.xx is displayed
"---" = no signal at output Q3
OPE = output Q3 forced opening
CLO = output Q3 forced closing
3) This parameter can only be quit when the setting is back at "---".
Press the left button to escape.
P46
P47
P74, App
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4. Handling
4.1 Mounting and installation
Do not mount on a wall in niches or bookshelves, behind curtains, above or near heat sources, or exposed to direct solar radiation. Mount about 1.5 m above the floor.
Mounting
Wiring
• Mount the room thermostat in a clean, dry indoor place without direct airflow from a heating / cooling device, and not exposed to dripping or splash water.
See Mounting Instructions M3191 [3] 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.
• Properly size the cables to the thermostat, fan and valve actuators for AC 230
V mains voltage.
• Use only valve actuators rated for AC 230 V.
• The wiring cross section used for power supply (L, N), fan (Q1, Q2, Q3, N) and
230 V outputs (Yx - N) must be adapted to the preceding overload protection elements (10A) under all circumstances. Comply under all circumstances with local regulations.
• Isolate the cables of input D1-GND for 230 V if the conduit box carries
AC 230 V mains voltage.
• Inputs X1-M, X2-M or D1-GND: Several switches (e.g. summer / winter switch) may be connected in parallel. Consider overall maximum contact sensing current for switch rating.
• Inputs X1-M and X2-M carry mains potential (RDG100KN only).
Sensor cables must be suited for AC 230 V mains voltage.
• Selectable relay function (RDG160KN): see section 3.14.4.
• Isolate the cables of KNX communication input CE+ / CE- for AC 230 V if the conduit box carries AC 230 V mains voltage.
• No cables provided with a metal sheath.
• Disconnect from supply before removing from the mounting plate.
• When a KNX bus power supply is connected on the line with communicating thermostats and Synco controller, the internal KNX power supply of the Synco controllers must be switched off.
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Applications
DIP switches
NO APPL
Connect tool
4.2 Commissioning
Note:
The room thermostats are delivered with a fixed set of applications.
Select and activate the relevant application during commissioning using one of the following tools:
– Local DIP switch and HMI
– Synco ACS
– ETS
Set the DIP switches before snapping the thermostat to the mounting plate, if you want to select an application via DIP switches.
All DIP switches need to be set to "OFF" (remote configuration), if you want to select an application via commissioning tool.
After power is applied, the thermostat resets and all LCD segments flash, indicating that the reset was correct. After the reset, which takes about 3 seconds, the thermostat is ready for commissioning by qualified HVAC staff.
If all DIP switches are OFF, the display reads "NO APPL" to indicate that application commissioning via a tool is required.
Each time the application is changed, the thermostat reloads the factory setting for all control parameters, except for KNX device and zone addresses!
Connect the Synco ACS or ETS tools to the KNX bus cable at any point for commissioning:
KNX
L X1 M X2 D1 GND CE+ CE-
N Q1 Q2 Q3 Y1 Y2 Y3 Y4 N1
V24
KNX
Siemens
N148 /
UP146 /
UP152
USB
KNX
Siemens
OCI700
RS232
Note:
ETS ETS / ACS
ACS and ETS require an interface:
– RS232 KNX interface (e.g. Siemens N148 / UP146 / UP152)
– OCI700.1 USB-KNX interface
An external KNX bus power supply is required if an RDG...KN is connected directly to a tool (ACS or ETS) via KNX interface.
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Control parameters
Control sequence
Calibrate sensor
Setpoint and range limitation
Programming mode
Assign KNX device address
Assign KNX group addresses
KNX serial number
The thermostat's control parameters can be set to ensure optimum performance of the entire system.
The parameters can be adjusted using
– Local HMI
– Synco ACS
– ETS
The control parameters of the thermostat can be set to ensure optimum
performance of the entire system (see section 3.14, control parameters).
• The control sequence may need to be set via parameter P01 depending on the application. The factory setting is as follows:
Application Factory setting P01
2-pipe and chilled / heated ceiling, and 2-stage 1 = cooling only
4-pipe, chilled ceiling and radiator 4 = heating and cooling
• 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 the setpoints and setpoint ranges (parameters
P08…P12) and change them as needed to achieve maximum comfort and save energy.
The programming mode helps identify the thermostat in the KNX network during commissioning.
Press left and right buttons simultaneously for 6 seconds to activate programming mode, which is indicated on the display with "PrOg".
Programming mode remains active until thermostat identification is complete.
Assign device address (P81) via HMI, ACS or ETS.
With device address set to 255, the communication is deactivated (no exchange of process data).
Use ETS to assign the KNX group addresses of the thermostat's communication objects.
Each device has a unique KNX serial number at the rear. An additional sticker with the same KNX serial number is enclosed in the packaging box. This sticker is intended for installers for documentation purposes.
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Layout
Button operation
4.3 Operation
See also Operating Instructions B3191 [2] enclosed with the thermostat.
1
2
1. Operating mode selector / Esc
2. Fan mode selector / Ok
3. Rotary knob to adjust setpoints and parameters
3
User action Effect, description
Normal operation
Press any button
(thermostat in normal operation)
Press left button
Actual operating mode and state are indicated by symbols.
Enter operating mode selection; backlit LCD turns on, all possible mode symbols turn on, indicator element (arrow) will appear on the current mode / state.
Change operating mode (indicator element
(arrow) changes to the next mode symbol.
After the last press and a timeout of 3 seconds, the newly selected mode is confirmed, the other elements disappear.
After a timeout of 20 seconds, the LCD backlight turns off.
Toggle between heating and cooling.
Activate "Extend Comfort mode"
Press left button (P01 = 2)
Press left button while "Operating mode" via bus is Economy or while operating mode switchover contact is activated
Keep left button depressed and turn rotary knob clockwise / counterclockwise
Press right button >3 seconds
Press right button for fan coil unit
Press right button if P52 = 0 (fan disabled, e.g. in chilled ceiling applications)
Turn rotary knob
Activate timer "Extend presence" / "Extend absence" and set the time (for details, see
Activate / deactivate button lock.
Change fan mode.
Set thermostat to Protection mode.
Press left and right button >3 seconds, release, then press right button >3 seconds
Press left and right button for 3 seconds, release, press left button for
3 seconds, then turn rotary knob counterclockwise min. ½ revolution
Press left and right button simultaneously for 6 seconds
Adjust the room temperature Comfort setpoint.
Enter parameter setting mode "Service level".
Enter parameter setting mode "Expert level", diagnostics and test.
Enter (KNX) programming mode.
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Display
# Symbol
1
Description
Heating mode
2
Heating mode, electric heater active
3
Cooling mode
4
Comfort
5
Economy
# Symbol Description
14
15
16
Automatic fan
Manual fan
Fan speed
Fan speed 1
Fan speed 2
Fan speed 3
6
Auto Timer mode according to schedule (via bus)
17
Degrees Celsius
Degrees Fahrenheit
8
9
10
12
13
Protection mode 18
Escape 19
Additional user information, like outside temperature or time of day from KNX bus. Selectable via parameters
Morning: 12-hour format
Afternoon: 12-hour format
20
21
Confirmation of parameters 22
23
24
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Digits for room temperature and setpoint display
Button lock
Condensation in room (dew point sensor active)
Weekday 1…7 from KNX bus
1 = Monday / 7 = Sunday
Fault
"Temporary timer" function; visible when operating mode is temporarily extended
(extended presence or absence)
Indicates that room temperature is displayed
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4.4 Remote operation
The RDG thermostats can be operated from a remote location using an OZW772 web server, a RMZ792 bus operating unit or the ACS tool.
4.5 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.
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ETS
STOP
Note!
5. Supported KNX tools
5.1 ETS
ETS is an engineering tool. It can be used for the full commissioning of the RDG
KNX thermostats.
The following functions can be realized with ETS4:
– Define and download the physical address
– Define and download the application (plant type, control sequence)
– Set up and download the thermostat's control parameters
– Set up and download group addresses
This basic documentation does not describe how to operate ETS and commission a device. Refer to the KNX Manual for more details.
Setting RDG KNX parameters is only supported by ETS4 or higher.
ETS4 can be updated online.
5.1.1 Parameter settings in ETS
For setting the parameters, open the project and select a device.
To start the parameter settings, select Edit, then Edit parameters.
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Notes
• The ETS version 3f or higher can be used to assign the communication objects to group addresses (S-mode).
• The ETS4 or higher can be used to download the application and parameters.
The application (plant type) and Control Sequence can be adjusted and downloaded.
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The control parameters, ([Pxx] description) can also be adjusted and down-
loaded. Refer to section 3.14.
ACS
STOP
Note!
5.2 ACS tool
With the ACS tool, the RDG KNX thermostats can be commissioned (physical address, application, parameters). They can be operated or monitored via bus during normal operation.
This Manual does not describe how the physical address is defined. Also, it only gives a brief overview of the main functionality of ACS.
For more information, refer to the ACS online help.
Setting RDG KNX parameters is only supported by ACS Version 5.11 or higher.
5.2.1 Parameter settings in ACS
In the ACS program, select Plant, then Open to open the plant.
To start the parameter settings, select Applications, then Plant engineering…:
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The application and control parameters can be adjusted and downloaded.
Column Line no. contains the parameter number as shown in the parameter table.
Refer to section 3.14, control parameters.
STOP
Note!
ACS Operating
Some parameters have a different range in ACS than in the room thermostats.
The thermostat does not accept changes that are outside its range. This can be observed online by the fact that a changed value jumps back to the original value.
To be sure, use the ranges described in the parameter tables in section 3.14.
5.2.2 Operation and monitoring with ACS
In the ACS program, select Plant, then Open to open the plant.
To start monitoring and operation, select Applications, then Plant operation.
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Parameter settings in
ACS
Notes:
ACS supports parameter settings even during normal operation.
To change a control parameter, select Popcard, then Settings.
• Make sure you have logged on with sufficient access right.
• Only control parameter can be changed, no application!
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Plant diagram in ACS ACS offers plant diagrams for easy monitoring and operation of the thermostat.
To start this application, select Applications, then Pant diagram.
Plant type
2-pipe
ACS provides standard plant diagrams for RDG KNX thermostats, which depend on the configuration as follows:
Application
Configuration
Application
Configuration
2-pipe fan coil unit
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
Radiator
– Control sequence: Heating only (P01 = 0)
– Fan operation: Disabled (P52 = 0)
Chilled / heated ceiling
– Control sequence: Changeover (P01 = 2,3)
– Fan operation: Disabled (P52 = 0)
Chilled ceiling
– Control sequence: Cooling only (P01 = 1)
– Fan operation: Disabled (P52 = 0)
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Plant type
2-pipe and electric heater
Application
Configuration
2-pipe fan coil unit with electric heater
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
Application
Configuration
Single stage with electric heater
– Control sequence: No impact (P01 =any)
– Fan operation: Disabled (P52 = 0)
2-pipe and radiator
2-pipe fan coil unit with radiator
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
Single stage with radiator
– Control sequence: No impact (P01 =any)
– Fan operation: Disabled (P52 = 0)
4-pipe 4-pipe fan coil unit
– Control sequence: Not auto c/o (P01 <> 3)
– Fan operation: Not disabled (P52 <> 0)
Chilled ceiling with radiator
– Control sequence: No impact (P01 =any)
– Fan operation: Disabled (P52 = 0)
Fan coil unit main / secondary
– Control sequence: Auto c/o (P01 = 3)
– Fan operation: Not disabled (P52 <> 0)
Main / secondary
– Control sequence: Auto c/o (P01 = 3)
– Fan operation: Disabled (P52 = 0)
2-stage heating or cooling
2-stage fan coil unit
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
2-stage
– Control sequence: No impact (P01 =any)
– Fan operation: Disabled (P52 = 0)
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Plant type
4-pipe with el heater
Application
Configuration
4-pipe fan coil unit with electric heater
– Control sequence: Not auto c/o (P01 <> 3)
– Fan operation: Not disabled (P52 <> 0)
Application
Configuration
1 stage Heat and Cool with electric heater
– Control sequence: No impact (P01 <> 3)
– Fan operation: Disabled (P52 = 0)
Fan coil unit main / secondary with electric heater
– Control sequence: Auto c/o (P01 = 3)
– Fan operation: Not disabled (P52 <> 0)
Main / secondary with el heater
– Control sequence: Auto c/o (P01 = 3)
– Fan operation: Disabled (P52 = 0)
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5.2.3 Operation and monitoring with OZW772
HomeControl app for plant control
.
The OZW772 web server enables users to operate a Synco HVAC system from a remote location – via PC or from a smart phone using the HomeControl app.
A start page shows the most important data points. A combination of menu / path navigation enables users to access all data points quickly and straightforwardly.
The entire installation can be visualized in the form of plant diagrams. Alarm and state messages can be forwarded to different message receivers, such as e-mail,
SMS, etc.
For details, see Commissioning Instructions CE1C5701.
5.2.4 Operation and monitoring with RMZ792
The RMZ792 is a communicating operator unit designed for operating Synco™ 700 and RDG
KNX devices in a KNX network.
The operator unit is suited both for fixed installation and mobile use (e.g. for use by the service engineer).
Third-party devices cannot be operated with it.
Note:
For details, see Basic Documentation CE1P3113.
The application cannot be displayed in the form of text, instead a number is used:
(Parameter Plant type on menu Basic setting):
0 = no application
1 = 2-pipe
2 = 2-pipe and electric heater
3 = 2-pipe and radiator
4 = 4-pipe
5 = 2-stage
6 = 4-pipe and electric heater
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RDG100KN
L X1 M X2
N Q1 Q2 Q3
RDG160KN
6. Connection
6.1 Connection terminals
D1 GND CE+ CE -
Y1 Y2 Y3 Y4
G X1 M X2 D1 GND
G0 L Q1 Q2 Q3 Y50
CE+ CE -
Y10 Y20
L, N
G, G0
L
Operating voltage AC 230 V
Operating voltage AC 24 V
Feed for relays AC 24...230 V
(RDG100KN)
(RDG160KN)
(RDG160KN)
X1, X2 Multifunctional input for temperature sensor
(e.g. QAH11.1) or potential-free switch
Factory setting:
– X1 = External temperature sensor
– X2 = No function
(function can be selected via parameters P38 / P40).
Measuring neutral for sensors and switches M
D1, GND Multifunctional input for potential-free switch
Factory setting: Operating mode switchover contact
(function can be selected via parameter P42).
Q1
Q2
Control output fan speed "low" AC 230 V
Control output fan speed "medium" AC 230 V
Q3 Control output fan speed "high" AC 230 V
Q1...Q3 Also for special functions AC 24...230 V (RDG160KN)
Y1…Y4 Control outputs "Valve" AC 230 V (RDG100KN)
("N/O" triac, for normally closed valves), output for electric heater via external relay
Y10, Y20 Control outputs "Valve" DC 0...10 V (RDG160KN)
Y50
CE+
Control output "Fan" DC 0...10 V
KNX data +
(RDG160KN)
CE- KNX data –
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RDG100KN
Application
• 2-pipe
6.2 Connection diagrams
V1
YHC
V2
• 2-pipe and radiator
• 4-pipe
• 2-stage
• 2-pipe and electric heater
YHC YR
YH
1 st
YC
2 nd
YHC E1
• 4-pipe and electric heater
YH
E1
YC
N1 Room thermostat RDG100KN
F External circuit breaker
S1, S2 Switch (keycard, window contact,
S3 presence detector, etc.)
Switch at SELV input
(keycard, window contact)
B1, B2 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.)
CE+ KNX data +
CE– KNX data –
M1 1- or 3-speed fan
V1, V2 Valve actuators:
On/Off or PWM, 3-position, heating, cooling, radiator, heating / cooling,
1st or 2nd stage
Electric heater E1
K
YH
Relay
Heating valve actuator
YC Cooling valve actuator
YHC Heating / cooling valve actuator
YR Radiator valve actuator
E1 Electric heater with relay / contactor Y
1 st
/ 2 nd
1 st
/ 2 nd
stage
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Connection
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RDG160KN
Application V1
• 2-pipe
• 2-pipe and radiator
• 4-pipe
• 2-stage
• 2-pipe and electric heater
YHC
YHC YR
YH
1 st
YC
2 nd
YHC E1
• Compressor
1-stage
• Compressor
2-stage
1 st
1 st
2 nd
V2
DC 0...10 V fan
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1- / 3-speed fan
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N1 Room thermostat RDG160KN
F External circuit breaker
S1...S3 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 –
M1 1- or 3-speed fan, DC 0...10 V fan
V1, V2 Valve actuators:
On/Off or DC 0...10 V, heating, cooling, radiator, heating / cooling,
1st or 2nd stage
Heating valve actuator YH
YC Cooling valve actuator
YHC Heating / cooling valve actuator
YR Radiator valve actuator
1 st
/ 2 nd
1 st
/ 2 nd
stage
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Connection
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128.0
93.0
7. Mechanical design
7.1 General
The room thermostat consists of 2 parts:
• Plastic housing with electronics, operating elements and room temperature sensor
• Mounting plate with the screw terminals
The housing engages in the mounting plate and is secured with 2 screws.
1
2
1. Operating mode selector / Esc
2. Fan mode selector / Ok
3. Rotary knob to adjust setpoints and parameters
3
For operation, refer to section 4.3.
7.2 Dimensions
Dimensions in mm
28.3
4.0
28.3
9.0
4.0
28.3
28.3
27.7
28.3
16.0
28.5
30.8
28.2 27.8
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RDG100KN
Power supply
Caution
Outputs
Caution
STOP
Note!
Inputs
Siemens
Building Technologies
8. Technical data
Rated voltage
Frequency
AC 230 V
50/60 Hz
Power consumption
No internal fuse
Max. 8 VA / 1 W
External preliminary protection with max. C 10 A circuit breaker required in all cases
Fan control Q1, Q2, Q3 – N
Rating min, max resistive (inductive)
No internal fuse
AC 230 V,
5 mA...5(4) A
External preliminary protection with max. C 10 A circuit breaker in the supply line required under all circumstances
Fans must NOT be connected in parallel!
Connect one fan directly, for additional fans, one relay for each speed.
Control outputs
Y1, Y2, Y3, Y4-N
Power limitation
Solid state (Triac)
AC 230 V, 8mA...1 A
3 A fast microfuse, cannot be exchanged
Multifunctional inputs
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
D1-GND
Operating action
Contact sensing
Parallel connection of several thermostats for one switch
Insulation against mains
Function of inputs
External temperature sensor, heating/cooling changeover sensor, operating mode switchover contact, dewpoint monitor contact, enable electric heater contact, fault contact, monitoring input
QAH11.1 (NTC)
0...49 °C
Max. 80 m
Selectable (NO/NC)
DC 0…5 V, max. 5 mA
Max. 20 thermostats per switch. Do not mix with D1!
N/A, mains potential
Selectable (NO/NC)
SELV DC 6…15 V, 3…6 mA
Max. 20 thermostats per switch.
Do not mix with X1 / X2!
3.75 kV, reinforced insulation
Selectable
X1: P38
X2: P40
D1: P42
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Technical data
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RDG160KN
Power supply
Caution
Outputs
STOP
Note!
Caution
Inputs
Rated voltage AC 24 V
DC 24 V : Make sure to connect G to + and G0 to - DC 24 V
Frequency
Power consumption
50/60 Hz
Max. 2 VA / 2 W
No internal fuse
External preliminary protection with max. C 10 A circuit breaker required in all cases
Q1 / Q2 / Q3 / L - N (relay)
Use for 3-speed fan control
AC 24...230 V
Rating min, max resistive (inductive)
Fans must NOT be connected in parallel!
5 mA...5(4) A
Connect one fan directly, for additional fans, one relay for each speed.
Use for actuator control (Q1, Q2)
Q1 - rating min, max resistive / inductive
Q2 - rating min, max resistive (inductive)
Use for external equipment (Q3)
Rating min, max resistive / inductive Qx
5 mA...1 A
5 mA...5(4) A
5 mA...1A
No internal fuse
External preliminary protection with max. C 10 A circuit breaker in the supply line required under all circumstances
ECM fan control Y50 – G0 SELV DC 0...10 V,
Max. ±5 mA
Actuator control Y10 - G0 / Y20 - G0 (G) SELV DC 0...10 V,
Max. ±1 mA
Multifunctional inputs
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
D1-GND
Operating action
Contact sensing
Parallel connection of several thermostats for one switch
SELV
QAH11.1 (NTC)
0...49 °C
Max. 80 m
Selectable (NO/NC)
DC 0…5 V, max. 5 mA
Max. 20 thermostats per switch
Selectable (NO/NC)
DC 6…15 V, 3…6 mA
Max. 20 thermostats per switch
Function of inputs
External room temperature sensor, heating/cooling
Selectable
X1: P38 changeover sensor, operating mode switchover contact, dewpoint monitor contact, enable electric
X2: P40
D1: P42 heater contact, fault contact, monitoring input, supply air temperature
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Technical data
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RDG100KN, RDG160KN
KNX bus
Operational data
Environmental conditions
Standards and directives
Interface type KNX, TP1-64
Bus current
(electrically isolated)
20 mA
Bus topology: See KNX Manual (see 1.2 "Reference documents")
Switching differential (adjustable)
Heating mode
Cooling mode
(P30)
(P31)
2 K (0.5…6 K)
1 K (0.5…6 K)
Setpoint setting and setpoint range
Comfort
Economy
(P08)
(P11-P12)
21 °C (5…40 °C)
15 °C/30 °C (OFF, 5…40 °C)
Protection
Multifunctional inputs X1 / X2 / D1
Input X1 default value
Input X2 default value
Operation
Climatic conditions
Temperature
Humidity
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
Storage
Climatic conditions
Temperature
Humidity
(P65-P66) 8 °C/OFF (OFF, 5…40 °C)
Selectable (0...8)
(P38) 1 (ext. temperature sensor,
room or return air)
(P40) 0 (no function)
Input D1 default value
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C (after calibration via P05)
Temperature calibration range
Settings and display resolution
Setpoints
Current temperature value displayed
(P42) 3 (operating mode switchover)
0…49 °C
< ± 0.5 K
± 3.0 K
0.5 °C
0.5 °C
IEC 721-3-3
Class 3K5
0 …50 °C
<95% r.h.
IEC 721-3-2
Class 2K3
−25…65 °C
<95% r.h.
Class 2M2
IEC 721-3-1
Class 1K3
−25…65 °C
<95% r.h.
EU conformity (CE)
Product standards
Automatic electric controls for household and similar use
EN60730–1
Special requirements for temperature-dependent controls
Electronic control type
Electromagnetic compatibility
Emissions
Immunity
Low-voltage directive
Electrical safety
RCM Mark conformity (Emission)
EN60730–2-9
2.B (micro-disconnection on operation)
2004/108/EC
EN60730–1, EN50491-5-2
EN60730–1, EN50491-5-2
EN50491-5-3
2006/95/EC
EN60730–1, EN50491-3
AS/NZS 61000-6-3
Siemens
Building Technologies
RDG100KN, RDG160KN Basic documentation
Technical data
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Environmental
Compatibility eu.bac
General
Caution
Reduction of hazardous substances
Safety class
Pollution class
2011/65/EU
EN50581
II as per EN60730
Normal
Degree of protection of housing IP30 as per EN60529
The product environmental declaration CE1E3181
*)
contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal).
Meets the requirements for eu.bac certification
See product list at: http://www.eubaccert.eu/licences-by-criteria.asp
RDG160KN (License 213356)
Fancoil unit systems (2 pipes 2 wires)
(Motorised actuator DC, variable fan speed)
Energy Efficiency Label
AA
Control accuracy [K]
Heating 0.1
Cooling 0.1
Fancoil unit systems (4 pipes)
(Thermal actuator 2-pt, variable fan speed)
Connection terminals
A Heating 0.4
Cooling 0.4
Solid wires or stranded wires with ferrules
1 x 0.4…2.5 mm
2 or 2 x 0.4…1.5 mm
2
Minimal wiring cross section on
L, N, Q1, Q2, Q3, Y1, Y2, Y3, Y4
Housing front color
Weight without / with packaging RDG100KN
RDG160KN min 1.5 mm
RAL 9003 white
0.270 kg / 0.380 kg
0.240 kg / 0.320 kg
*) The documents can be downloaded from http://siemens.com/bt/download .
2
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Index
0
0…10 V DC 0…10 V ........................................ 53
1
1- / 3-speed fan ..................................................... 53
1-speed fan ........................................................... 55
3
3-position control signal ........................................ 49
3-speed fan ........................................................... 55
A
Absence ................................................................ 17
ACS tool ................................................................ 83
Adaptive temperature compensation .................... 36
Applications overview ........................................... 25
Auto Timer mode .................................................. 16
Automatic heating / cooling changeover ........ 28, 32
Automatic heating / cooling changeover via bus .. 28
B
Basic application ................................................... 46
Bus - set operating modes .................................... 19
Bus - setting and adjusting setpoints .................... 23
Bus power supply ................................................. 77
Button lock ............................................................ 31
C
Cable length for sensors ....................................... 59
Changeover switch ............................................... 28
Changeover via KNX ...................................... 28, 58
Chilled / heated ceiling applications ..................... 46
Clean fan filter reminder ....................................... 57
Comfort setpoint ................................................... 21
Commissioning ....................... 15, 23, 25, 65, 70, 77
Communication objects .................................. 60, 66
Compressor applications ...................................... 46
Connecting a KNX tool ......................................... 71
Control outputs configuration ................................ 51
Control outputs overview ...................................... 49
Control parameters ............................................... 70
Control sequences ................................................ 32
Cooling demand .................................................... 64
Cooling sequence ................................................. 32
D
DC 0...10 V fan ..................................................... 55
DC 0...10 V valves ................................................ 55
DC 0…10 V ........................................................... 53
DC 0…10 V for electric heaters ............................ 50
Siemens
Building Technologies
RDG100KN, RDG160KN Basic documentation
Index
DC 0…10 V for valve actuators ............................. 50
Desigo ................................................................... 10
Dew point monitoring....................................... 31, 58
Digital input ............................................................ 58
DIP switches ....................................... 25, 49, 51, 77
Disposal ................................................................. 81
Download via tool .................................................. 71
E
ECM fan ................................................................ 55
Effect of Protection via time schedule ................... 16
Electric heater enable / disable ............................. 58
Enable / disable electric heater .................36, 42, 58
Expert level parameters ........................................ 70
Extension of Comfort mode ................................... 17
Extension of presence / absence .......................... 17
External / return air temperature ........................... 58
External / return air temperature sensor ............... 29
F
Fan in Auto Timer mode ........................................ 57
Fan in dead zone ................................................... 72
Fan kick ................................................................. 56
Fan kick function ................................................... 56
Fan minimum on-time............................................ 55
Fan operation as per heating / cooling mode, or disabled .............................................................. 55
Fan operation in dead zone .................................. 56
Fan overrun ........................................................... 56
Fan start ................................................................ 56
Fan start delay ....................................................... 57
Fault....................................................................... 59
Fault on KNX ......................................................... 65
Fault, handling ....................................................... 60
Floor cooling .......................................................... 29
Floor heating ......................................................... 29
Floor temperature limitation function ..................... 29
G
Geographical zone .......................................... 62, 74
H
Heartbeat ............................................................... 64
Heating / cooling changeover .......................... 29, 58
Heating and cooling sequence .............................. 32
Heating demand .................................................... 64
Heating sequence ................................................. 32
HomeControl app .................................................. 89
I
Integral action time ................................................ 13
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Integration via KNX ................................................. 9
K
KNX addressing .................................................... 78
KNX Bus power supply ......................................... 77
KNX functions ......................................................... 9
KNX LTE mode ..................................................... 60
KNX overview ................................................... 6, 60
KNX parametersl .................................................. 82
KNX serial number ................................................ 78
KNX S-Mode ......................................................... 60
KNX tools .............................................................. 82
L
LTE mode .............................................................. 60
M
Main and secondary ............................................. 40
Manual heating / cooling changeover ................... 29
Manually select heating or cooling sequence ....... 32
Minimum output .................................................... 29
Moisture ................................................................ 29
Monitoring with ACS ............................................. 84
Monitoring with OZW772 ...................................... 89
Monitoring with RMZ972 ....................................... 89
Mounting and installation ...................................... 76
Multifunctional inputs ............................................ 58
O
ON/OFF control signal .......................................... 49
Operatiion with OZW772 ...................................... 89
Operatiion with RMZ972 ....................................... 89
Operating mode
Priority intervention ............................................ 15
Operating mode - setting via bus .......................... 19
Operating mode button ......................................... 16
Operating mode switchover .................................. 58
Operation with ACS .............................................. 84
Outside (air) temperature .................... 13, 62, 68, 80
OZW772 ................................................................ 89
P
Parallel connection of switches ............................. 59
Parameter setting ................................................. 70
Parameter setting via tool ..................................... 71
Parameter settings in ACS .................................... 83
Parameter settings in ACS Operating ................... 85
Parameter settings in ETS .................................... 82
Plant diagrams in ACS ......................................... 86
Precomfort ............................................................ 16
Presence .............................................................. 17
Programming mode .............................................. 78
Proportional band ................................................. 13
Protection mode / Standby ................................... 14
Purge function ...................................................... 29
PWM ..................................................................... 49
PWM for electric heater ........................................ 50
R
Radiator applications ............................................ 46
Remote heating / cooling changeover ................. 28
Remote operation ................................................. 89
Reset parameters ................................................. 70
RMZ972 ................................................................ 89
S
Sensor input ......................................................... 58
Setpoint Comfort mode ........................................ 47
Setpoint Economy mode ...................................... 47
Setpoint limitation ................................................. 21
Setpoint priority ..................................................... 24
Setpoint Protection mode ..................................... 47
Setpoints - setting via bus .................................... 23
Setpoints and sequences ..................................... 47
S-Mode ................................................................. 60
Standby / Protection mode ................................... 14
Supply air temperature limitation ..................... 30
Switch off external equipment .............................. 31
Switching differential ............................................. 13
Synchronization .................................................... 50
Synco .................................................................... 10
Synco 700, Synco living ......................................... 9
T
Temperature out of range ..................................... 60
Temporary setpoint ............................................... 21
Time of day via KNX ............................................. 13
Time schedule change mode ............................... 16
Tool - Parameter setting and download ................ 71
W
Window contact ................................................... 16
Window state ............................................ 14, 15, 58
Z
Zone addressing ................................................... 61
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Index
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Building Technologies
RDG100KN, RDG160KN Basic documentation
Index
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Siemens Switzerland Ltd
Infrastructure & Cities Sector
Building Technologies Division
International Headquarters
Gubelstrasse 22
CH-6301 Zug
Tel. +41 41-724 24 24
Fax +41 41-724 35 22 www.buildingtechnologies.siemens.com
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RDG100KN, RDG160KN Basic documentation
Index
© 2010 - 2014 Siemens Switzerland Ltd
Subject to change
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Table of contents
- 4 About this document
- 4 Revision history
- 4 Reference documents
- 5 Before you start
- 5 Copyright
- 5 Quality assurance
- 5 Document use / request to the reader
- 6 Target audience, prerequisites
- 6 Glossary
- 7 Summary
- 7 Types
- 7 Functions
- 9 Integration via KNX bus
- 11 Equipment combinations
- 12 Accessories
- 13 Functions
- 13 Temperature control
- 14 Operating modes
- 15 Different ways to influence the operating mode
- 19 Communication examples
- 21 Room temperature setpoints
- 21 Description
- 23 Setting and adjusting setpoints
- 25 Applications overview
- 25 Applications for fan coil systems
- 26 Applications for Universal systems
- 27 Applications for heat pump systems (RDG160KN)
- 28 Additional functions
- 32 Control sequences
- 32 Sequences overview (setting via parameter P01)
- 33 Application mode
- 35 2-pipe fan coil unit
- 36 2-pipe fan coil unit with electric heater
- 38 2-pipe fan coil unit with radiator or floor heating
- 40 4-pipe fan coil unit
- 42 4-pipe fan coil unit with electric heater (RDG100KN)
- 44 2-pipe / 2-stage heating or cooling
- 46 Chilled / heated ceiling and radiator applications
- 46 Compressor applications (RDG160KN)
- 47 Setpoints and sequences
- 49 Control outputs
- 49 Overview
- 51 parameters P46/P47)
- 53 Fan control
- 58 Multifunctional input, digital input
- 60 Handling faults
- 60 KNX communications
- 60 S-mode
- 60 LTE mode
- 61 Zone addressing in LTE mode (in conjunction with Synco)
- 63 Example of heating and cooling demand zone
- 64 Send heartbeat and receive timeout
- 64 Startup
- 64 Heating and cooling demand
- 65 Fault function on KNX
- 66 Communication objects (S-mode)
- 66 Overview
- 67 Description of communication objects
- 69 Communication objects (LTE-mode)
- 70 Control parameters
- 70 Parameter setting via local HMI
- 71 Parameter setting / download via tool
- 72 Parameters of the "Service level
- 73 Parameters of the "Expert level with diagnostics and test
- 76 Handling
- 76 Mounting and installation
- 77 Commissioning
- 79 Operation
- 81 Remote operation
- 81 Disposal
- 82 Supported KNX tools
- 82 Parameter settings in ETS
- 83 ACS tool
- 83 Parameter settings in ACS
- 84 Operation and monitoring with ACS
- 89 Operation and monitoring with OZW
- 89 Operation and monitoring with RMZ
- 90 Connection
- 90 Connection terminals
- 91 Connection diagrams
- 94 Mechanical design
- 94 General
- 94 Dimensions
- 95 Technical data