Siemens | RDF301 | Technical data | Siemens RDF301 Technical data

s
RDF301, RDF600KN
RDF301.50
RDF301.50H
Semi-flush mount communicating
room thermostats
RDF301, RDF301.50..., RDF600KN
Basic Documentation
Edition: 2.2
CE1P3171en
2014-05-23
Building Technologies
Contents
1.
About this document .............................................................................. 4
1.1
Revision history ......................................................................................... 4
1.2
Reference documents ............................................................................... 4
1.3
1.3.1
1.3.2
1.3.3
Before you start ......................................................................................... 5
Copyright ................................................................................................... 5
Quality assurance ..................................................................................... 5
Document use / request to the reader ...................................................... 5
1.4
Target audience, prerequisites .................................................................. 6
1.5
Glossary .................................................................................................... 6
2.
Summary .................................................................................................. 7
2.1
Types ......................................................................................................... 7
2.2
Ordering .................................................................................................... 7
2.3
Functions ................................................................................................... 7
2.4
Integration via KNX bus ............................................................................ 9
2.5
Equipment combinations ......................................................................... 11
2.6
Accessories ............................................................................................. 12
3.
Functions ............................................................................................... 13
3.1
Temperature control ................................................................................ 13
3.2
3.2.1
3.2.2
Operating modes ..................................................................................... 14
Different ways to influence the operating mode ...................................... 15
Communication examples ....................................................................... 18
3.3
3.3.1
3.3.2
Room temperature setpoints ................................................................... 22
Description .............................................................................................. 22
Setting and adjusting setpoints ............................................................... 24
3.4
3.4.1
3.4.2
3.4.3
Applications overview.............................................................................. 26
Applications for fan coil systems ............................................................. 26
Applications for Universal systems ......................................................... 27
Applications for heat pump systems ....................................................... 28
3.5
Additional functions ................................................................................. 29
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
3.6.6
3.6.7
3.6.8
Control sequences .................................................................................. 32
Sequences overview (setting via parameter P01) .................................. 32
Application mode ..................................................................................... 33
2-pipe fan coil unit ................................................................................... 35
2-pipe fan coil unit with electric heater .................................................... 36
4-pipe fan coil unit ................................................................................... 38
Chilled / heated ceiling and radiator applications ................................... 39
Compressor applications ......................................................................... 40
Setpoints and sequences ........................................................................ 41
3.7
3.7.1
3.7.2
Control outputs ........................................................................................ 43
Overview ................................................................................................. 43
Control outputs configuration (setting via DIP switches or tool) ............. 44
3.8
Fan control .............................................................................................. 45
3.9
Multifunctional input, digital input ............................................................ 49
3.10
Handling faults ........................................................................................ 51
3.11
3.11.1
KNX communications .............................................................................. 52
S-mode .................................................................................................... 52
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Contents
CE1P3171en
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3.11.2
3.11.3
3.11.4
3.11.5
3.11.6
3.11.7
3.11.8
3.11.9
LTE mode ................................................................................................ 52
Zone addressing in LTE mode (in conjunction with Synco) .................... 53
Example of heating and cooling demand zone ....................................... 55
Send heartbeat and receive timeout ....................................................... 56
Startup ..................................................................................................... 56
Heating and cooling demand .................................................................. 56
Fault function on KNX ............................................................................. 57
KNX switching groups (RDF301.50, RDF301.50H only) ........................ 58
3.12
3.12.1
3.12.2
Communication objects (S-mode)........................................................... 60
Overview ................................................................................................. 60
Description of communication objects .................................................... 61
3.13
Communication objects (LTE-mode)....................................................... 64
3.14
3.14.1
3.14.2
3.14.3
3.14.4
Control parameters ................................................................................. 65
Parameter setting via local HMI .............................................................. 65
Parameter setting / download via tool ..................................................... 66
Parameters of the "Service level" ........................................................... 67
Parameters of the "Expert level with diagnostics and test" ................... 68
4.
Handling ................................................................................................. 71
4.1
Mounting and installation ........................................................................ 71
4.2
Commissioning........................................................................................ 72
4.3
Operation ................................................................................................ 74
4.4
Remote operation.................................................................................... 75
4.5
Disposal .................................................................................................. 75
5.
Supported KNX tools ............................................................................ 76
5.1
5.1.1
ETS ......................................................................................................... 76
Parameter settings in ETS ...................................................................... 76
5.2
5.2.1
5.2.2
5.2.3
5.2.4
ACS Service and Operating tool ............................................................. 77
Parameter settings in ACS ...................................................................... 78
Operation and monitoring with ACS ........................................................ 79
Operation and monitoring with OZW772 ................................................ 82
Operation and monitoring with RMZ972 ................................................. 82
6.
Connection ............................................................................................ 83
6.1
Connection terminals .............................................................................. 83
6.2
Connection diagrams .............................................................................. 84
7.
Mechanical design ................................................................................ 85
7.1
General ................................................................................................... 85
7.2
Dimensions ............................................................................................. 86
8.
Technical data ....................................................................................... 87
Index
................................................................................................................ 90
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Contents
Basic documentation
CE1P3171en
2014-05-23
1.
About this document
1.1
Revision history
Edition
Date
Changes
Section
Pages
2.2
June 2014
All
All
2.0
1.0
Oct 2012
22 Jun 2010
Added RDF301.50H
RDF600KN with window contact and presence
detector
Update with wiring and protection information
New S-mode objects for Economy setpoint
Added RDF600…
First edition
All
All
1.2
Reference documents
Subject
Semi-flush mount room
thermostats with KNX
communications,
RDF301, RDF301.50,
RDF600KN
KNX Manual
Ref
[1]
[2]
[3]
[3a]
Doc No.
Description
CE1N3171 Data Sheet
CE1B3171 Operating Instructions
CE1M3171 Mounting Instructions RDF301...
CE1M3076.1 Mounting Instructions RDF600KN
[4]
Synco and KNX (see
www.siemens.com/synco)
[5]
[6]
Handbook for Home and Building Control – Basic Principles
(http://www.knx.org/knx-en/training/books-documentation/knx-associationbooks/index.php)
CE1N3127 KNX bus, Data Sheet
CE1P3127 Communication via the KNX bus for Synco 700, 900 and
RXB/RXL, Basic Documentation
XLS template Planning and commissioning protocol,
in HIT
communication Synco 700
CE1N3121 RMB795 central control unit, Data Sheet
CE1Y3110 KNX S-mode data points
-Product data for ETS
CE1J3110
ETS product data compatibility list
0-92168en Synco Application Manual
CM1Y9775 Desigo RXB integration – S-mode
CM1Y9776 Desigo RXB / RXL integration – Individual Addressing
CM1Y9777 Third-party integration
CM1Y9778 Synco integration
CM1Y9779 Working with ETS
565-132
Installation Instructions: KNX driver for PXC Modular
127-1676
Technical Spec Sheet: KNX driver for PXC Modular
140-0804
Technical reference for KNX driver
140-0804
Application 6205 point map for RDF
[7]
Desigo
engineering documents
Apogee
engineering documents
(RDF301... only)
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
4 / 92
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RDF301, RDF301.50..., RDF600KN
About this document
Basic documentation
CE1P3171en
2014-05-23
1.3
1.3.1
Before you start
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 fieldsupport-zug.ch.sbt@siemens.com 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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About this document
Basic documentation
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1.4
Target audience, prerequisites
This document assumes that users of the RDF 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:
STOP
ETS
Parameters identified by this symbol are set using ETS.
ACS
Parameters identified by this symbol are set using the ACS tool.
Note!
K NX
R
Setting RDF KNX parameters is only supported by the following tool
versions:
– ETS3 for 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 RDF 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 3.13.
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Basic documentation
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RDF301
RDF301.50
RDF301.50H
RDF600KN
Summary
2.1
Types
Stock no.
S55770-T104
S55770-T105
S55770-T334
S55770-T293
Operating
voltage
AC 230 V
AC 230 V
AC 230 V
AC 230 V
Control outputs
3pos
1)
1
1)
1
1)
1
1)
1
ON/
OFF
1)
2
1)
2
1)
2
1)
2
DC
0..10 V
----
KNX switching
groups

3)
Hotel: MUR, DND
--
Suitable
conduit
2)
box
Product no.
2.
rectangular
rectangular
rectangular
round &
rectangular
1) Selectable: ON/OFF or 3-position.
2) Rectangular conduit box e.g. ARG71.
Round CEE/VDE conduit box min 60 mm diameter and min 40 mm depth.
3) MUR: Make Up Room, DND: Do Not Disturb.
2.2
Ordering
• When ordering, please indicate both product no. / stock no. and name:
E.g. RDF301 / S55770-T104 room thermostat.
• Order valve actuators separately.
2.3
Use
Functions
Fan coil units via ON/OFF or modulating control outputs:
• 2-pipe system
• 2-pipe system with electric heater
• 4-pipe system
Chilled / heated ceilings (or radiators) via ON/OFF or modulating control
outputs:
• Chilled / heated ceiling
• Chilled / heated ceiling with electric heater
• Chilled / heated ceiling and radiator / floor heating
Compressors: Via ON/OFF control
• 1-stage compressors in DX type equipment
• 1-stage compressors in DX type equipment with electric heater
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
•
•
•
•
•
•
Type of mounting /
suitable conduit boxes
• RDF600KN
Operating modes: Comfort, Economy (Energy Saving) and Protection
ON/OFF or 3-position control outputs (relay)
Output for 3-speed or 1-speed fan
Automatic or manual heating / cooling changeover
Backlit display
AC 230 V operating voltage
• RDF301…
Functions
for round CEE/VDE conduit box, with min 60 mm diameter,
min 40 mm depth or recessed rectangular CEE/VDE conduit box
with 60.3 mm fixing centers
for recessed rectangular CEE/VDE conduit box
with 60.3 mm fixing centers
• 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.
• Select operating mode via operating mode button on the thermostat.
• Temporary Comfort mode extension.
• 1- or 3-speed 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).
• 2 multifunctional inputs, freely selectable for:
– 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 RDF301….:
– Operating mode switchover contact … (keycard, window contact, etc.)
RDF600KN:
– Window contact
– Presence detector
• Advanced fan control function, e.g. fan kick, fan start, 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 (adjust with P62).
• Floor heating temperature limitation.
• Reload factory settings for commissioning and control parameters.
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2.4
Integration via KNX bus
The RDF 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 and Apogee 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).
• RDF301.50 only: 4 buttons to control KNX actuators via KNX S-mode
("switching groups" with functions such as switching, dimming, blinds control,
8-bit scene).
• RDF301.50H only: 4 buttons for Hotel applications to control via KNX S-mode.
Same functions as RDF301.50, but with dedicated button labels for hotel
applications: Make Up Room, Do Not Disturb.
• 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 service tool
– ETS
Synco 700
The RDF 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.
Synco living
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
Legend:
Synco 700
Synco living
RDG..., RDF…, RDU…
OZW772
RMZ792
QAW...
ACS
RXB, RXL
QAX
Desigo, Apogee and
third-party systems
Building automation and control system (BACS)
Room automation and control system
Room thermostats
Web server
Bus operator unit
Room unit
Service tool using OCI700.1 (OCI700.1 is delivered
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
The RDF 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.
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2.5
Equipment combinations
Description
ON/OFF actuators
Product no.
Data
sheet
Cable temperature sensor or
changeover sensor
QAH11.1
1840
Room temperature sensor
QAA32
1747
Condensation monitor
QXA2601 /
QXA2602 /
QXA2603 /
AQX2604
3302
Electromotoric ON/OFF actuator
SFA21...
4863
Electromotoric ON/OFF valve and
actuator
MVI… / MXI…
4867
SUA…
4832
STA23...
4884
STP23...
4884
SSA31...
4893
SSC31
4895
SSP31…
4864
SSB31...
4891
SSD31...
4861
SQS35…
4573
(only available in AP, UAE, SA and IN)
Zone valve actuator
(only available in AP, UAE, SA and IN)
Thermal actuator (for radiator valves)
NO
Thermal actuator
(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 5.5 mm)
Electromotoric actuator, 3-position
(for valves 5.5 mm)
3-position actuators
Note:
For the maximal number of actuators in parallel, refer to information in the data
sheets of the selected actuators and to this list, depending on which value is lower:
• Parallel operation of max 6 SS… actuators (3-pos) is possible.
• Parallel operation of max 10 ON/OFF actuators is possible.
• Parallel operation of SQS35 is not possible.
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2.6
Accessories
Description
Product no / SSN
Changeover mounting kit
(50 pcs/package)
Plastic mounting bracket for semi-flushmount thermostats RDF301... for
increasing the headroom in the conduit
box by 10mm
Conduit box for semi-flush mounted
thermostat RDF301...
ARG86.3
Data
sheet
N3009
ARG70.3
N3009
ARG71 /
S55770-T137
N3009
KNX Power supply 160 mA (Siemens BT LV)
KNX Power supply 320 mA (Siemens BT LV)
KNX Power supply 640 mA (Siemens BT LV)
5WG1 125-1AB02
5WG1 125-1AB12
5WG1 125-1AB22
----
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3.
Functions
3.1
Temperature control
General note:
Parameters
Setting of the control parameters (P01, etc., mentioned throughout the document)
is described in section 3.13.
Temperature control
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 3-position control output (only for 2-pipe
applications)
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 5 minutes (RDF301...) and 45
minutes (RDF600KN), adjustable via parameter P35.
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 change the room temperature display from °C to °F as
needed.
The acquired room temperature (internal or external sensor) is also available as
information on the bus.
Display
K NX
R
Room temperature
• 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.
/
Concurrent display of
°C and °F
Concurrent display of the current temperature or setpoint in °C and °F (parameter
P07 = 1) is possible on the thermostats.
K NX
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.
In S-mode, the corresponding communication object needs to be bound with a
KNX sensor device.
R
Outside temperature via
bus
K NX
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.
R
Time of day via bus
Note:
• When an application program is downloaded to the Synco devices via ETS, the
correct group addresses need to be downloaded as well to display the time of
day on the room thermostat (see Synco Knowledge Base - KB771).
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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.
K NX
R
The thermostat sends the effective room operating mode on the bus.
Room operating mode:
State
The following operating modes are available:
Auto Timer
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
Comfort
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 +/- buttons or via bus.
In Comfort mode, the fan can be set to automatic or manual fan speed: Low,
medium or high.
The thermostat switches to Comfort mode when the presence detector (local or on
KNX) is active (room is occupied). *)
K NX
R
Presence detector
(RDF600KN)
Economy
K NX
R
Room operating mode:
Window state
(RDF301…)
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
via bus.
and
are displayed.
Protection
K NX
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 on RDF301…(e.g. keycard contact
presence detector, window contact) is active. *)
– "Window state" is sent to the RDF301 via bus, e.g. from a KNX switch or a KNX
presence detector (P02 is irrelevant) *)
R
Room operating mode:
Window state
(RDF600KN)
Note:
The thermostat switches to Protection mode when...
– the operating mode button is pressed
– Protection is sent via bus
– the window contact on RDF600KN is active (open window).
– "Window state" is sent to the RDF600KN via bus, e.g. from a KNX switch *)
*) Refer to chapter 3.2.1 for detail regarding the operating mode switchover
contact (RDF301...), window contact (RDF600KN) and presence detector
(RDF600KN).
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3.2.1
Source for change of
operating mode
ACS
Source
Local operation
via operating
mode button
Bus command
K NX
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
Description
Value of DP "Cause"
Room operating mode selector
• Operating mode is not Auto Timer
(preselection)
• No time schedule via bus
Timer function
• Temporary Comfort extension is active
Room operating mode contact
• Operating mode switchover contact (RDF301..)
1)
Window switch
• Window contact (RDF600KN)
1)
Presence detector
• Presence detector (RDF600KN)
Room operating mode contact
• "Window state" sent via bus (RDF301….)
1)
Window switch
• "Window state" sent via bus (RDF600KN)
1)
Presence detector
• "Presence detector" sent via bus (RDF600KN)
Time switch
• Time schedule available via bus
 local operating mode is set to Auto Timer
• Time schedule sends Protection mode via bus
 operating mode cannot be changed locally
1) RDF600KN SW version < V1.8 works like RDF301… with the operating mode
switchover contact.
Priority of operating
mode interventions
Priority
Different ways to influence the operating mode
The following table shows the priorities of different interventions.
A lower number means a higher 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 Protection mode, sent by a time schedule, has priority 2.
from time schedule
It cannot be overridden by the user nor by an operating mode
switchover contact.
Operating mode
If the contact is closed, the operating mode changes to
switchover contact
Economy. This overrides the operating mode on the thermostat.
(RDF301…)
Window contact
If the contact is closed, the operating mode changes to
1)
(RDF600KN)
Protection. This overrides the operating mode on the
thermostat.
"Window state" via bus "Window state" sent via bus has the same effect as the local
operating mode switchover contact (on RDF301…) or local
window contact (on RDF600KN).
Note: Only one input source must be used, either local input
X1/X2 or KNX bus.
Presence detector
If the contact is closed (room occupied), the operating mode
1)
(RDF600KN)
changes to Comfort. This overrides the operating mode on the
thermostat. Open the contact (room unoccupied) will set the
thermostat back to the previous operating mode.
Presence detector via
"Presence detector" sent via bus has the same effect as the
1)
bus (on RDF600KN)
local presence detector.
Operating mode button The user can switch the operating mode using the operating
mode button.
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

Operating mode via bus The operating mode can be changed via bus.

Time schedule via bus
Temporary extended
Comfort mode via
operating mode button
The operating mode can be temporarily set from Economy to
Comfort by pressing the operating mode button, if...
– Economy was sent via bus
– extended Comfort period >0 (parameter P68)
The last intervention wins, either locally or via bus.
The operating mode sent via bus can be overridden by all other
interventions. Exception: Protection mode has priority 2.
Note: If the time schedule switches from Comfort to Economy,
but the presence detector is still active (room occupied), the
thermostat continues to work in Comfort mode for the period of
occupancy.
1) RDF600KN SW version < V1.8 works like RDF301… with the operating
mode switchover contact as window contact or presence detector.
Auto Timer mode
with time schedule via
bus
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.
Behavior when bus
sends new operating
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.
Precomfort via bus
If the time schedule sends Precomfort mode, then this mode will be transformed
either into Economy (factory setting) or Comfort (selectable via parameter P88).
Behavior when bus
sends Protection
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.
Availability of Economy
mode
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.
P02
1
2
Without time
schedule

 
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.
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Operating mode
switchover contact
(window contact)
(RDF301…)
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 multifunctional input X1,
X2. Set parameter P38, P40 to 3. P02 is not relevant. User operations are
ineffective and "OFF" is displayed if the operating mode switch over contact is
active.
Window contact
(RDF600KN)
The thermostat can be forced into Protection mode when the window is opened.
The contact can be connected to multifunctional input X1, X2. Set parameter P38,
P40 to 3. User operations are ineffective and "OFF" is displayed if the window
contact is active.
Note:
K NX
R
Room operating mode:
Window state
Note:
K NX
RDF600KN SW version < V1.8 works like RDF301… with the operating mode
switchover function.
The function (operating mode switchover or window contact) is also available via
the KNX signal "Window state", e.g. from a KNX switch or a KNX presence
detector.
Only one input source must be used, either local input X1/X2 or KNX bus.
User operations are ineffective and "OFF" is displayed if the operating mode
switchover/ window contact is active, or if "Window state" is sent via bus.
The operating mode can be changed to Comfort and back to Economy mode
depending of the room occupancy (room occupied or not occupied, via presence
detector or keycard).
This function is not available on RDF600KN SW version < V1.8.
R
Presence detector
(RDF600KN)
Behavior without time schedule:
•
•
Whenever the presence detector is activated then the operating mode of the
thermostat goes to Comfort.
Whenever the presence detector is deactivated then the operating mode goes
to Economy.
Behavior with time schedule via bus:
•
When Time-switch is on Protection
- Presence detector has not influence on operating mode.
•
When Time-switch is on Economy
- Whenever the presence detector is activated then the operating mode goes
to Comfort.
- Whenever the presence detector is deactivated then the operating mode
goes to (Auto) Economy.
•
When Time-switch is on Comfort
- Whenever the presence detector is activated then the operating mode keeps
in Comfort.
- Whenever the presence detector is deactivated then the operating mode
keeps in Comfort.
Important: When Time-switch goes to Eco but Presence detector is still active,
the operating mode keeps in Comfort mode until the Presence detector is
inactive.
Note:
The contact (e.g. a card reader) can be connected to multifunctional input X1, X2
(set parameter P38 or P40 to 10) or the occupancy is sent via bus from a KNX
presence detector sensor: Only one input source must be used, either local input
X1/X2 or KNX bus.
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Temporary timer to
extend the Comfort
mode
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:
• 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 operating mode button will switch the thermostat to
Protection.
If the operating mode switchover contact is active, pressing the operating mode
button will show "OFF" (blinking).
3.2.2
Communication examples
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).
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Example 1 (RDF301…)
Operating mode switchover
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
06:00 08:00
12:00 13:00
17:00
20:00
3171Z91
Time schedule
Precomfort
Economy
Protection
Window contact
Room 1
Window open
1)
1)
1)
Window closed
2)
Comfort
Effective room
operating mode
Room 1
Economy
Protection
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Example 2 (RDF301…)
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
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
12:00 13:00
06:00 08:00
20:00
17:00
3171Z92
•
Precomfort
Economy
Protection
Operating mode
button on the
thermostat
Window contact
Room 2
Effective room
operating mode
Room 2
Pressed
2)
Window open
3)
4)
5)
1)
1)
Window closed
Comfort
Economy
6)
Protection
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Example 3 (RDF600…)
Application with "Window Contact", "Presence Detector" and central time
schedule
In room 3 operating mode Comfort is possible between 6:00 and 20:00, based on
time schedule or occupancy period. Outside this time the operating mode remains
in Protection.
•
•
•
•
•
•
•
•
•
Time schedule
Room operating
mode
At 6:00 the central set the operating mode to Economy. (1)
In the morning, as soon as the presence is detected (8:00 – 12:00), the
operating mode will be switched to Comfort. (2)
The user will briefly open the window and the operating mode switch to
Protection. (3)
In the afternoon the time schedule set the Comfort mode from 13:00 to 17:00.
(4)
After 17:00 the room is still occupied and the operating mode remains in
Comfort (occupancy via presence detector). (5)
Later people open the window and left the room for a short time. Operating
mode switches to Protection as long as the window is open. (6)
As soon as the room is unoccupied the thermostat switches to Economy. (7)
At 20:00 the room is set to protection according to time schedule. (8)
After this time, the occupancy detected via presence detection has not effect,
as the central time switch sets the thermostat to Protection. (9)
Comfort
Precomfort
Economy
Protection
Presence
detector
Occupied
Unoccupied
Window contact
Room 3
Window open
Window closed
Comfort
Effective room
operating mode
Room 3
Economy
Protection
Note:
RDF600KN SW version < V1.8 works like RDF301… with the operating mode
switchover function.
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3.3
3.3.1
Comfort mode
Room temperature setpoints
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 +/- buttons,
or via bus from a remote device like a touch panel, operating unit, etc.
The last intervention always wins.
Temporary setpoint
If the "Temporary setpoint" function is enabled via parameter P69, the Comfort
setpoint adjusted via the +/- buttons or via bus is set back to the Comfort basic
setpoint stored in P08 when the operating mode changes.
Setpoint limitation
For comfort or energy saving purposes, the setpoint setting range can be limited to
minimum (P09) and maximum (P10).
P09 < P10
(comfort concept)
• 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.
Example
5°C
P09 ≥ P10
(energy saving concept)
18°C
P09
25°C
P10
40°C
• 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.
Example
5°C
*) Note: RDF301...
for 4-pipe with P09 ≥ P10
Cooling setpoint adjustable 18…25 °C
Heating setpoint adjustable 18…25 °C
21°C
P10
25°C
P09
40°C
Cooling setpoint adjustable 25…40 °C
Heating setpoint adjustable 5…21 °C
For heating and cooling applications (e.g. 4-pipe):
– P09 is the setpoint for cooling and P10 the setpoint for heating.
– The setpoint cannot be adjusted via the rotary knob.
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Economy mode
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.
Protection mode
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.
Caution
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
Room temperature setpoints can be
– set during commissioning
– adjusted during runtime
K NX
R
Comfort basic setpoint
Comfort setpoint
Economy heating
setpoint
Economy cooling
setpoint
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
Commissioning
– HMI
– Tool download
Comfort basic setpoint
1)
Dead zone Comfort
Setpoint Economy Heating
Setpoint Economy Cooling
Setpoint Protection Heating
Setpoint Protection Cooling
Input LTE mode
Input S-mode
Setpoints Heating
Setpoints Cooling
Setpoints Heating
Setpoints Cooling
Comfort basic setpoint
Current runtime
setpoints in
thermostat
Setpoint
adjustment
Input LTE
2)
mode
Setpoint shift H
Setpoint shift C
Setpoint shift H
Setpoint shift C
Comfort setpoint
Economy Heating
Economy Cooling
Protection Heating
Protection Cooling
Effective room operating mode
R
Current setpoint
Input S-mode
P08 Comfort basic setpoint
1)
P33 Dead zone Comfort
P11 Economy Heating
P12 Economy Cooling
P65 Protection Heating
P66 Protection Cooling
New current
runtime setpoints
in thermostat
3)
Comfort setpoint
Local operation
+ / - buttons
Comfort setpoint
Economy Heating
Economy Cooling
Protection Heating
Protection Cooling
Current setpoint (used by the thermostat for temperature control)
1)
2)
3)
K NX
Stored in EEPROM
of thermostat
Only required for heating AND cooling applications (see section 3.6.8).
LTE mode: the shift is added to the local shift.
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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General notes:
• 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.
Notes on setpoint
adjustment (LTE mode
with Synco only)
• 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).
Setpoint priority,
Setpoint Master RMB
(RDF600KN)
• The room thermostat always adopts the received setpoints from the controller
RMB795. Thus the Comfort setpoints locally adjusted on the RDF600KN room
thermostats are overwritten by the Comfort setpoints of the room group
(i.e. within every 15 min).
•
• On RMB SW Version >= 2.0 it is possible to define under which circumstances
the controller has to send out the setpoints:
- Always (every 15min)
- Not in Comfort mode
- Only when changed
• See "Setpoint priority" and "Setpoint Master" functions on RMB795B.
Note:
• RDF600KN SW version < V1.8: The local Comfort setpoints are overwritten only
if the RMB setpoints are changed.
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3.4
Applications overview
The thermostats support the following applications, which can be configured using
the DIP switches inside the front panel of the unit or a commissioning tool.
Remote configuration
All DIP switches 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
1
2
3
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 3.6.6 and 3.6.7.
3.4.1
Applications for fan coil systems
Application and output signal, DIP switches, diagram
ON
• 2-pipe fan coil unit
(heating or cooling)
• 2-pipe fan coil unit with el. heater
(heating or cooling)
ON/OFF
ON/OFF
2
3
1
2
3
2
3
3171D21
3076D20
1
ON
YE
B2
B2
T
T
T
T
(B1)
(B1)
Y1
Y1
M1
M1
T
T
(B1)
(B1)
ON
• 2-pipe fan coil unit
(heating or cooling)
2
ON/OFF
3
1
3076D22
3076D20
1
ON
• 4-pipe fan coil unit
(heating and cooling)
3-position
B2
T
T
(B1)
Y1
T
Y2
(B1)
Y1
M1
M1
T
T
(B1)
(B1)
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3.4.2
Applications for Universal systems
Application and output signal, DIP switches, diagram
ON
B2
2
3
3191S11
1
• Chilled / heated ceiling with electric
heater (heating or cooling) ON/OFF
D3
T
ON
1
B2
D3
T
Y1
2
3
2
3
3191S12
• Chilled / heated ceiling
(heating or cooling)
Y1
T
T
B1
B1
YE
N1
T
ON
• Chilled / heated ceiling
(heating or cooling)
•
• Chilled ceiling and radiator ON/OFF
(heating and cooling)
2
D3
T
Y1
ON
1
3
3191S11
B2
1
N1
3191S13
T
D3
Y1
T
T
T
B1
B1
YR
N1
T
N1
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3.4.3
Applications for heat pump systems
Application and output signal, DIP switches, diagram
ON
2
D3
1
3
3181S31
1
ON
• 1-stage compressor with electric
heater (heating or cooling) ON/OFF
2
3
3181S32
• 1-stage compressor
(heating or cooling)
D3
T
T
B1
B1
YE
T
• 1-stage compressor
(heating and cooling)
T
N1
N1
ON
ON/OFF
2
3
3181S35
1
D3
T
B1
T
Key
N1
Y1 Heating or heating / cooling
valve actuator
Y2 Cooling valve actuator
YE Electric heater
B1 Return air temperature sensor or external
room temperature sensor (optional)
B2 Changeover sensor (optional)
M1 3- or 1-speed fan
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3.5
Additional functions
Heating / cooling
changeover via bus
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 is assigned with this function.
K NX
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).
R
Heating/cooling
changeover
Automatic heating /
cooling changeover via
changeover sensor
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 (parameter P37), the thermostat changes
over to heating mode, and to cooling mode when below 16 °C (parameter P36).
If the water temperature is between the 2 changeover points immediately after
power-up, the thermostat starts in the previously active mode.
The water temperature is acquired at 30-second intervals and the operating state is
updated accordingly.
M
16
M
Tw[°C]
28
Operating mode
Cooling mode
Tw Water temperature
Changeover switch
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
X2
T
M
QAH11.1
3076Z03
Contact open  heating mode
Contact closed  cooling mode
T °C
Note
The sensor or switch can be connected to input terminal X2 or X1, depending on
the commissioning of the inputs (P38, P40).
See also section 3.9 "Multifunctional input".
By using an external switch as changeover, the Operating action (via parameters
P39 or P41) cannot be modified.
The assignment is fix: Contact open
 heating mode
Contact closed  cooling mode
Manual heating /
cooling changeover
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.
External / return air
temperature sensor
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 "Multifunctional input".
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Purge function
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.
Caution
The "Purge" function (parameter P50) must be disabled if the thermostat is used in
compressor-based applications.
Avoid damage from
moisture
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".
Minimum output
ON-time / OFF-time
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 2position 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.
Floor heating /
Floor cooling
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.
Floor temperature
limitation function
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".
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.
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The table below shows the relation between parameter, temperature source and
temperature display:
OFF
OFF
10...50 ˚C
External temp.
sensor available
No
Yes
No
Source for display of
room temperature
Built-in sensor
External temp. sensor
Built-in sensor
10…50 ˚C
Yes
Built-in sensor
Parameter P51
Output control
according to
Built-in sensor
External temp. sensor
Built-in sensor
Built-in sensor + limit
by external sensor
Floor temp.
limit function
Not active
Not active
Not active
Active
The "Floor temperature limitation" function influences the outputs listed in the table
below:
Application
Output Y11
2-pipe
H/C valve
2-pipe & el
heater
H/C valve
4-pipe
Heating valve
Output Y21
"Floor temp. limit" function has impact on
t t
Heating
Cooling
Heat. and cool.
(P01 = 0/2/3)
(P01 = 1/2/3)
(P01 = 4)
Remark
Y11
N/A
El heater
Y21
Y21 *)
Cooling valve
Y11
N/A
Only el heater
Y11
*) If P13 = ON
 electric heater in cooling mode
Note:
Either floor temperature sensor or external room temperature sensor can be used.
Dew point monitoring
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 or X2. If there is condensation, the cooling valve is fully closed until no
more condensation is detected, and the cooling output is disabled temporarily.
K NX
The condensation symbol " " is displayed during temporary override and the fault
"Condensation in room" will be sent via bus.
R
Fault state
Fault information
The input must be commissioned accordingly (P38, P40).
See section 3.9 "Multifunctional input".
Button lock
If the "Button lock" function is enabled by parameter P14, the buttons will be locked
or unlocked by pressing the operating mode button for 3 seconds.
If "Auto lock" is configured, the thermostat will automatically lock the buttons 10 /
20 seconds after the last adjustment (RDF301... / RDF600KN).
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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
section 3.4).
Parameter
P01 = 0
P01 = 1
P01 = 2
P01 = 3
P01 = 4
T
Sequence
T °C
Heating
T °C
Cooling
*) 2-pipe with
el. heater
Available
for basic
1)
application :

2-pipe,
2-pipe & el heater


4-pipe
Note:
T °C
T °C
Manually select
heating or
cooling
sequence
Automatic
heating /
cooling
changeover via
external water
temperature
sensor or
remote switch


 2)
 2)
Heating and
cooling
sequence, i.e.
4-pipe

1) For chilled / heated ceiling and radiator applications, see section 3.6.6;
for compressor applications, see section 3.6.7.
2) For manual and automatic changeover with 4-pipe applications,
see section 3.6.5:
– 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 3.6.5.
For the relation between setpoints and sequences, see section 3.6.8.
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3.6.2
K NX
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.
R
Application mode
The RDF KNX thermostats support the following commands:
#
0
Application
mode
Auto
1
2
Heat
Morning
warm-up
3
4
5
Cool
Night purge
Pre-cool
6
OFF
8
Emergency
heat
9
Fan only
Description
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
Thermostat is only allowed to provide cooling
Not supported by fan coil applications
If "Pre-cool" is received, the room should be
cooled down as fast as possible (if
necessary). The thermostat will only allow
cooling
Thermostat is not controlling the outputs,
which means all outputs go to off or 0%
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
Control sequence
enabled
Heating and/or cooling
Heating only
Heating only
Cooling only
N/A (= Auto)
Cooling only
Neither heating nor
cooling
Heating only
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
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 3.6.3) 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)
Auto (0)
Heat (1), (2), (8)
Cool (3), (5)
Night purge (4),
Fan only (9)
Heating AND cooling
State changeover / continuous heating or cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Control sequence state
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)
Auto (0)
Heat (1), (2), (8)
Cool (3), (5)
Night purge (4),
Fan only (9)
Heating / cooling demand
Control sequence state
Heating
No demand
Heating
Heating / cooling depending
on last active sequence
Cooling
Heating
Heating
Heating
Cooling
Cooling
Cooling
Heating / cooling depending
on last active sequence
Cooling
Heating
No demand
Cooling
Heating
No demand
Cooling
No temperature control active
3171D01
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
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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).
ON/OFF control
The diagrams below show the control sequence for 2-position control.
Heating mode
Cooling mode
Y
3076D01
Y
Y1
1
3076D02
Control sequence
ON/OFF output
Y1
1
w
T[°C]
0
w
½ SDH
½ SDH
T[°C]
0
½ SDC
½ SDC
T[°C] Room temperature
SDH
Switching differential "Heating" (P30)
w
Room temperature setpoint
SDC
Switching differential "Cooling" (P31)
Y1
Control command "Valve" or "Compressor"
Modulating control: 3-position
The diagrams below show the control sequence for modulating PI control.
Heating mode
Cooling mode
100
3076D03
Y [%]
Y1
Y [%]
Y1
100
0
w
T[°C]
0
XpH
Note:
3076D04
Control sequence
modulating output
T[°C]
w
XpC
T[°C]
Room temperature
XpH
Proportional band "Heating" (P30)
w
Room temperature setpoint
XpC
Proportional band "Cooling" (P31)
Y1
Control command "Valve"
• The diagrams only show the PI thermostat’s proportional part.
• For the fan sequence see section 3.8.
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
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).
Electric heating, active in
cooling mode
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).
Electric heating in
heating mode
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).
Electric heating and
manual changeover
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).
Digital input "Enable
electric heater"
Remote enabling / disabling of the electric heater is possible via input X1 or X2 for
tariff regulations, energy savings, etc.
Input X1 or X2 must be commissioned accordingly (parameters P38, P40). See
section 3.9 "Multifunctional input".
K NX
R
The electric heater can also be enabled / disabled via bus.
Enable electric heater
Note:
Caution
If "Enable electric heater" input is used via bus, then the function must not be
assigned to a local input X1 or X2.
An electric heater must always be protected by a safety limit thermostat!
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ON/OFF control
The diagrams below show the control sequence for 2-position.
Heating mode
Cooling mode
(automatic changeover = heating or heating only)
(man. / auto. changeover = cooling or cooling only)
YE
Y1
wD
Y
YE
Y1
3076D05
Y
3076D06
Control sequence
ON/OFF output
xdz
1
1
w
0
½ SDH
½ SDH
T[°C]
½ SDH
w
0
½ SDC
½ SDH
½ SDH
T[°C]
½ SDC
½ SDH
Heating mode with manual changeover (P01 = 2) (manual changeover = heating)
3076D07
Y
YE
w
T[°C]
0
Note:
W
Room temperature setpoint
Y1
Control command "Valve" or
"Compressor"
YE
Control command "Electric heater"
1
½ SDH
T[°C] Room temperature
½ SDH
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
Xdz
Dead zone (P33)
wD
Setpoint differential (P34)
• The diagrams only show the PI thermostat’s proportional part.
• For the fan sequence see section 3.8.
• For better temperature control performance with 2-pos electrical heater, we
suggest to set the switching differential heating (P30) to 1K.
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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3.6.5
4-pipe fan coil unit
Heating and cooling
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.
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 (4-pipe with
changeover)
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):
– Winter: Large coil (V1) for heating, small coil (V2) for cooling.
– Summer: Large coil (V1) for cooling, small coil (V2) for heating.
Changeover
YH
YC
1
T B2
3181D117
3181D112
Y
V2
w
0
T[°C]
w
V1
M1
YH
V1
Changeover
T
B1
Note:
YC
V2
Note:
This example shows
ON/OFF control;
for modulating control, connect the
appropriate output
terminals
• 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
(P01 = 2)
Y1
3076D13
Y
3076D01
Y
Cooling mode with manual selection
(P01 = 2)
Y2
1
1
w
w
½ SDH
T[°C]
0
T[°C]
0
½ SDC
½ SDH
½ SDC
Heating and cooling mode (P01 = 04)
Y1
Y2
½ xdz ½ xdz
3076D11
Y
1
w
0
½ SDC
½ SDH
Note:
T[°C]
½ SDC
½ SDH
T[°C] Room temperature
w
Room temperature setpoint
Y1
Control command "Valve" or "Comp." (H)
Y2
Control command "Valve" or "Comp." (C)
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
Xdz
Dead zone (P33)
• The diagrams only show the PI thermostat’s proportional part.
• For the fan sequence see section 3.8.
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
3.6.6
Chilled / heated ceiling and radiator applications
For chilled / heated ceiling and radiator,
• set the corresponding basic application
• 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 ceiling and radiator
Set basic application
2-pipe
See
section
3.6.3
2-pipe and electric heater
3.6.4
4-pipe
3.6.5
Sequences
H
C
El H + H
El H + C
C
H+C
(
(
(
(
(
(
\ )
/ )
\ \ )
\ / )
/ )
\ / )
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3.6.7
Compressor applications
For compressor applications,
• set the corresponding basic application
• disable the fan (P52) or set the fan speed (P53)
The following applications are available:
Application for compressor
Set basic application
1-stage compressor
for heating or cooling
1-stage compressor and electric
heater
(for cooling only: disable
electric heater via P13)
1-stage compressor
for heating and cooling
2-pipe
See
section
3.6.3
2-pipe and electric heater
4-pipe
Note:
• Minimum ON/OFF time:
• Fan operation:P52 (0 = disabled, 1 = enabled)
• Fan speed: P53 (1 = 1-speed, 2 = 3-speed)
Sequences
3.6.4
H
C
El H + H
El H + C
C
(
(
(
(
(
\ )
/ )
\ \ )
\ / )
/ )
3.6.5
H+C
( \ / )
P48 / P49
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3.6.8
2-pipe applications
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).
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).
w
wHeatEco
wCoolProt
T[°C]
3181D127
wHeatProt
wCoolEco
Comfort mode
Application
Heating
Economy / Protection mode
Cooling
Y
Heating
Y
Cooling
Y
Y
2-pipe
W
2-pipe and
electric
heater
Y
YE
W
T
2)
Y
W
T
YE1)
T
W HeatEco/Prot
Y
W
T
YE
T
W CoolEco/Prot T
2)
Y
W HeatEco/Prot
T
YE1)
W HeatEco/Prot W CoolEco/Prot T
1) If P13 = ON
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
WHeatEco/Prot = setpoint heating in Economy or Protection mode
WCoolEco/Prot = setpoint cooling in Economy or Protection mode
YR = radiator sequence
YE = electric heater sequence
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4-pipe applications
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.
Economy /
Protection mode
Heating and/or
cooling
Comfort mode
Application
4-pipe
Heating and cooling
Y
Heating only
1)
Cooling only
Y
W
T
1)
Y
W
T
Y
W
T
W HeatEco/Prot W CoolEco/Prot T
1) Manual changeover, P01 = 2
W = setpoint in Comfort mode
WHeatEco/Prot = heating setpoint for Economy or Protection mode
WCoolEco/Prot = cooling setpoint for Economy or Protection mode
YE = electric heater sequence
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3.7
Control outputs
3.7.1
Overview of control
outputs
Overview
Different control output signals are available. They need to be defined during
commissioning (see below).
Control output
Product no.
RDF301,
RDF301.50,
RDF301.50H,
RDF600KN
2-position
Y11, Y21
(2 x SPST)
2-position
PWM
3-position
---
Y11, Y21 *)
(1 x
/ )
DC 0…10 V
---
*) Only on 2-pipe application
Note:
ON/OFF control signal
(2-position)
In the ACS tool, Y11 and Y21 are called Y1 and Y2.
The valve or compressor receives the OPEN/ON command via control output Y11
or Y21 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
(2-position)
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
Adaptive temperature
compensation for electric
heater (RDF600KN)
A safety limit thermostat (to prevent overtemperatures) must be provided externally.
When an electric heater is connected directly to the ON/OFF Y21, 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
current/power of the electric heating is entered in the parameters.
P45 (load current el. Heater): Factory setting 0kW, setting range: 0.0…1.2 kW.
3-position
control signal
Output Y11 provides the OPEN command, and Y21 the CLOSE command to the
3-position actuator.
The factory setting for the actuator's running time is 150 seconds. It can be
adjusted via parameter P44.
The parameter is only visible if 3-position is selected via DIP switches.
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Synchronization
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.
3.7.2
Control outputs configuration (setting via DIP
switches or tool)
The type of the control outputs on 2-pipe applications (2- or 3-position) is set via
DIP switches (see section 3.4).
The DIP switches have no impact if the application is commissioned via tool.
Control outputs need to be set via ACS in this case.
Note:
In the tool, the parameter is called "Output Y1 / Y2", not Y11 / Y21).
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3.8
Fan control
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 according to the setting of
parameters P15 (fan stage in dead zone Comfort on RDF600KN) and P60 (fan
kick).
Factory setting for "Fan in the dead zone":
• RDF600KN: Fan speed OFF: (P15 = 0, P60 = OFF)
• RDF301…: Fan speed 1 (P60 = 0)
Note:
K NX
R
Fan command value
Enable fan command
value
K NX
P15 is not implemented into RDF600KN SW version < V1.8.
The fan speed and mode can be changed via bus.
For this purpose, the fan command value needs to be enabled.
R
The fan speed and mode can be monitored via bus.
Fan operation
Fan stage 1-2-3
Fan output
3-speed fan control
with modulating
heating / cooling
control
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.
Q
Q3
Q2
Q1
100
YH[%]
Note:
3-speed fan control
with ON/OFF heating /
cooling control
0
XpH
w
xdz
w
Room temperature setpoint
Q
YH
Fan speed
Control demand "Heating"
YC
Control demand "Cooling"
XpH
Proportional band "Heating"
XpC
Proportional band "Cooling"
Xdz
Dead zone
100
0
XpC
YC[%]
The diagram only shows the PI thermostat’s proportional part.
On applications with 2-position control:
1) The switching point for low fan speed (Q1) 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 (XpHFan / XpCFan) is defined by the
switching differential (SDH/SDC) via a look-up table.
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Y
xdz
1
0
w
SDH
T[°C]
SDC
Q
Q3
Cool
Room temperature
w
Q
Room temperature setpoint
Fan speed
Y
Control command "Valve"
SDH
Switching differential "Heating"
SDC
Switching differential "Cooling"
Xdz
Dead zone
XpHFan Switching range for fan
"Heating"
XpCFan Switching range for fan
"Cooling"
Q2
Q1
w
SDH/SDC
[K]
XpHFan/XpCFan [K]
0.5
2
T[°C]
XpCFan
XpHFan
Look-up table with
ON/OFF control
T[°C]
1.0
3
1.5
4
2.0
5
2.5
6
3.0
7
3.5
8
4.0
9
>4.5
10
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.
Fan operation as per
heating / cooling mode,
or disabled
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 3.6.6).
Fan minimum
on- time
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.
This minimum on-time can be adjusted from 1…6 minutes via parameter P59.
Fan operation in dead
zone (fan kick)
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
10385D22en
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 "OFF" means the fan does not run in the dead zone.
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Fan operation in dead
zone P15, Comfort
mode (RDF600KN)
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.
Note:
P15 is not implemented into RDF600KN SW version < V1.8.
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
3181D22
Fan start
Q3
Q2
Q1
0
T
Fan overrun for electric
heater
Fan failure
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).
Clean fan filter
reminder
The "Clean fan filter reminder" function counts the fan operating hours and displays
message "FIL
" to remind the user to 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)).
K NX
The "Clean filter reminder" is reset when the operating mode is manually set to
Protection and back.
R
Fault information
Fan in Auto Timer
mode
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.
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Fan start delay
(RDF600KN)
To let the heating / cooling coil reach its temperature, the fan start can be delayed
by a time period set via parameter P67.
31 81 D23
Y
1
0
T
Q
P67
T
Note:
This function (via parameter P67) is not implemented into RDF600KN SW version
< V1.8.
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3.9
Multifunctional input, digital input
The thermostat has 2 multifunctional inputs X1 and X2.
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 and P40 + P41 for X2.
K NX
The current temperature or state of the inputs X1/X2 is available on bus for
monitoring purposes.
R
The parameters can be set to the following values:
#
0
1
2
K NX
Function of
input
Not used
External / return
air temperature
Heating /
cooling
changeover
R
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
Heating / cooling changeover is also possible via bus.
In this case, the function must not be assigned to any
local input X1, X2. See also section 3.5.
Diagnostic value 00 is displayed for closed contact /
100 for open contact, if a switch is connected.
3
K NX
Window contact
1)
(RDF600KN)
R
Window
state
(RDF600..)
3
K NX
Operating mode
switchover
(RDF301..)
R
Window
state
(RDF301..)
4
Dew point
monitor
Window contact input to switch the operating mode to
Protection.
If the window contact is open, user operations are
ineffective and "OFF" is displayed.
Window contact is also possible via bus. In this case,
the function must not be assigned to any local input
X1, X2. See also section 3.2.1.
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. See also section 3.2.1.
Digital input for a dew point sensor to detect
condensation. Cooling is stopped if condensation
occurs.
DI
DI
DI
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#
5
K NX
Function of
input
Enable electric
heater
6
Fault
R
7
Monitor input
(Digital)
R
8
Monitor input
(Temperature)
10
Presence
detector
1)
(RDF600KN)
R
Fault
information
K NX
X1, X2
(Digital)
K NX
X1, X2
(Temp.)
K NX
Digital input to enable / disable the electric heater via
remote control.
Type
X1/X2
DI
Enable electric heater is also possible via bus. In this
case, the function must not be assigned to any local
input X1, X2. See also section 3.6.
R
Enable electric heater
K NX
Description
R
Presence
detector
(RDF600…)
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).
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, e.g. to send a local alarm via KNX to the
central controller.
DI
Sensor input to monitor the state of an external
sensor (e.g. QAH11.1) via bus, e.g. to send a local
temperature (0...49°C) via KNX to the central
controller.
Presence detector input to switch the operating mode
to Comfort in case of occupancy and back to
Economy when the room is unoccupied.
AI
DI
DI
Presence detector is also possible via bus. In this
case, the function must not be assigned to any local
input X1, X2. See also section 3.2.1.
•
•
•
1)
Note :
Operational action can be changed between normally open (NO) and normally
closed (NC) via parameter P39, P41.
Each input X1 or X2 must be configured with a different function (1…5, 10).
Exception: 1 or 2 inputs can be configured as fault (6) or monitor input (7, 8).
X1 is factory-set to "Operating mode switchover" / "Window contact" (3), X2 to
"External sensor" (1).
RDF600KN SW version < V1.8 works like RDF301… with the operating mode
switchover contact as window contact or presence detector.
For more detailed information, refer to section 3.4 "Applications".
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3.10 Handling faults
Temperature out
of range
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.
Fault “Er1” on display
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 replaced
if the room temperature needs to be measured with the built-in sensor.
K NX
For fault status messages on the bus, see section 3.11.8.
R
Power failure
In the event of a power failure, all working conditions (operating mode, setpoint, fan
stage, all control parameter settings) are stored without time limitation.
When power returns, the thermostat reloads this data and continues to work in the
same conditions as before.
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3.11 KNX communications
The RDF 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.
Definitions
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.
RDF / RDG
Time Switch
Geogr. zone 2.5.1 or 2.1.1
Geogr. zone 2.5.1
Room temperature
Operating mode
Operating mode
Refr. distr zone 1
Cool demand
Heat distr zone 1
Heat demand
Chiller
Refr. distr zone 1
Cool demand
Boiler
Heat distr zone 1
Heat demand
Sensor
Outside temperature zone 31
Outside temperature
Outside temperature zone 31
Outside temperature
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• 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]).
Engineering and
commissioning
3.11.3 Zone addressing in LTE
mode (in conjunction with
Synco)
In cases where RDF 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
Geographical zone (apartment)
Geographical zone (room)
Heat distr zone heating coil
Refr distr zone cooling coil
Note:
Factory setting
--- (out of service)
1
1
1
Parameter
P82
P83
P84
P85
"Subzone" of "Geographical zone" is fix 1 (not adjustable).
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)
Zone in which an RDF KNX thermostat is physically located. Other
room-specific devices may also be located in this zone.
(Apartment . Room . Subzone)
Apartment = ---, 1...126
Room
= ---, 1...63
Subzone
= fix 1
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).
Legend:
D = device address (P81)
G = geographical zone (P82, P83)
(Apartment.Room.Subzone)
Heat distribution zone
heating coil
Zone
= ---, 1...31
Refrigeration
distribution zone
cooling coil
Zone
4
D: 004
G: 4.1.1
Server room
D: 003
G: 2.2.1
Office 2
2
1
D: 11
G: 1.2.1
Office 1
2
D: 002
G: 2.1.1
Corridor
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).
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).
= ---, 1...31
Outside temperature
zone
Zone
D: 10
G: 1.1.1
3171z201
Example:
Commercial building
In a commercial building, the
time switch information is sent by
the RMB795 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" needs to have the
same Apartment Address.
= fixed to 31
Outside temperature received in outside temperature zone 31 will be /
can be displayed on the room thermostat when commissioned
accordingly (parameter P07 = 2).
RDF301...: SW < V3.7: fixed to 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.
Konnex TP1
RMH760
Controller 1
RMB795
Controller 3
Controller 2
RDF...
Controller 4
RDU...
Controller 5
RDG...
P3171Z01
RMH760
Controller 6
T
V M
2
T
T
T
T
T
T
1
Heat source
DHW heating
Heating circuit
fan coil
Fan coil
room A
VAV box
room B
Fan coil
room C
Heat demand
Heat demand
Heat requistion
Heat requistion
Heat demand
Heat demand
Heat demand
Heat distr zone
source side: 1
Heat distr zone 1
Heat distr zone 2
Heat distr zone 2
Heat distr zone 2
Heat distr zone 2
Setting values
Controller 1
Controller 2
Explanation relating to
the illustration
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 directly to the primary controller (in the above example to
the RMH760).
(1) and (2) designate the numbers of the distribution zone.
Note:
• 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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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.
LTE mode / S-mode
Fixed times are specified as follows:
– Receive timeout: 31 minutes
– Send heartbeat: 15 minutes
Reducing the bus load
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
The application is restarted after every reset, so that all the connected motorized
valve actuators are synchronized (see "Control outputs", 3.7).
Startup delay
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 (TWaitDevice) is determined by
the thermostat's device address. After the delay, the device starts to send.
K NX
R
Heating output primary
Heating output
secondary
Cooling output primary
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 RDF 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.
K NX
Fault transmission is different in LTE mode and S-mode:
R
S-mode
Fault state
Fault information (internal
information)
LTE mode
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
Display
Error code
Default fault text
0
No fault
Text
adjustable *)
Prio
Fault
-
No fault
1
Bus power supply**)
BUS,
BUSF
5000
No bus power
supply
2
Device address error
Addr
6001
>1 id device address
---
3
Condensation
4930

4
External fault input X1
AL1
9001
Condensation in the
room
Fault input 1
5
External fault input X2
AL2
9002
Fault input 2

6
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 of alarms
• Priority order is #1…6
• External faults #4…5: If faults are active, the display will show AL1, AL2,
alternating. On the bus, only the fault with the highest priority will be sent.
K NX
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.
R
Fault transmission
After a timeout of 48 hours, the sending of faults will automatically be enabled
again.
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3.11.9 KNX switching groups (RDF301.50, RDF301.50H only)
K NX
Light and blinds as well as scenes are operated via switching groups.
R
The communication objects of the buttons need to be bound to a corresponding
KNX actuator module.
Buttons
5
1
3
2
4
RDF301.50
1, 2 Buttons of switching group left (1).
3, 4 Buttons of switching group right (2).
5
Display for indication while pressing buttons.
RDF301.50H
1, 2
Button label: Make Up Room (MUR), ON/OFF.
3, 4
Button label: Do Not Disturb (DND), ON/OFF.
5
Display for indication while pressing buttons.
RDF301.50… has 2 switching groups with a pair of button each, which must be
configured via ETS.
Commissioning of switching groups (ETS)
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Parameters per switching
group
#
Parameter
Function left / right buttons
Parameters per single
button
#
Function
Parameter
1
Switch
"ON/OFF"
functions
0
1
2
3
4
Parameter value
Inactive (factory setting)
Switch
Dim
Shutter
Scene
0
Parameter value
Child Parameter:
Top: ON; bottom: OFF
1
Operating switching
groups
Note:
2 "ON/OFF" functions
Function top button:
Toggle (ON/OFF)
0
ON
1
2
OFF
Function bottom button:
Toggle (ON/OFF)
0
ON
1
2
OFF
#
Function
Parameter
4
Scene
Scene number top button
Scene number bottom button
Parameter
value
1…63
1…63
The following functions are available:
– Switching: Toggle ON/OFF with 1 button or ON/OFF with 2 buttons
(1 + 2 or 3 + 4). "ON" or "OFF" is displayed.
RDF301.50H: toggle ON/OFF function must be configured for MUR and DND
hotel functions.
– Dim lights with 2 buttons (1 + 2 or 3 + 4):
ON/OFF with a short pulse (<0.5 s); "ON" or "OFF" is displayed.
Brighter / darker with a long pulse (>1 s); "dI" is displayed.
– Operate blinds with 2 buttons (1 + 2 or 3 + 4):
A long pulse (>1 s) starts the up/down motor; "UP" or "DOWN" is displayed.
A short pulse (<0.5 s) stops the motor or slightly adjusts the position of blinds;
"ON" or "OFF" is displayed.
– Scene (button 1, 2, 3 or 4):
A scene can be used to recall certain states of all actuators involved, as well as
to save new states as needed. E.g. differently dimmed lights and blind positions
considered adequate for certain events / times.
A short pulse (<0.5 s) starts the scene. "CALL" is displayed, the scene is read
from the bus.
A long pulse (>3 s) saves the actual position of all actuators involved as
adjusted previously; "SAVE" is displayed, the new scene is sent on the bus.
If commissioned as inactive, then pressing the buttons has no effect.
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3.12 Communication objects (S-mode)
3.12.1 Overview
Page
Object # and name
Thermostat
13
13
1
3
13
44 Outside temperature
15
33
45
45
12 Room operating mode:
1
Time switch )
7 Room operating mode:
1)
Preselection
20 Room operating mode:
Window state
45 Room operating mode:
3)
Presence detector
22 Room temperature:
Comfort basic setpoint
23 Room temperature:
Comfort setpoint
46 Room temperature:
3)
Economy heating setpoint
47 Room temperature:
3)
Economy cooling setpoint
31 Application mode
32 Enable fan command value
34 Fan command value
36, 50
29 Enable electric heater
36, 50
15
14, 17,
49
14, 17,
49
24
24
24
24
Object # and name
Page
System time
Time of day
21 Room temperature
16 Room operating mode:
1)
State
24 Room temperature:
Current setpoint
13
14
33 Fan operation
(0 = Auto / 1 = Manual)
35 Fan output
45
36 Fan stage 1
45
37 Fan stage 2
45
38 Fan stage 3
45
24
45
2)
25 Heating output primary
2)
26 Heating output secondary
2)
27 Cooling output primary
56
56
56
29 Enable electric heater
39/40 X1 (temperature / digital)
41/42 X2 (temperature / digital)
50
50
29, 49
30 Heating/cooling changeover
5
57
6
Fault transmission
RDF301.50….
2)
only
1)
2)
3)
Fault state
31,
57
4 Fault information
31,
47
50,
57
45.. Buttons left: ON/OFF
58
45.. Button top left: ON/OFF
58
46.. Button bottom left: ON/OFF 58
47 Buttons left: Dim up/down
58
48 Buttons left: Blind step/stop
58
49 Buttons left: Blind up/down
58
50 Buttons left: Scene
58
51.. Buttons right: ON/OFF
58
51.. Button top right: ON/OFF
58
53.. Button bottom right: ON/OFF 58
53 Buttons right: Dim up/down
58
54 Buttons right: Blind
58
step/stop
55 Buttons right: Blind up/down 58
56 Buttons right: Scene
58
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
Only on RDF600KN SW >= V1.8
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3.12.2 Description of communication objects
Obj
1
Object name
System time
Function
Type/ length
Flags
Time and
19.001
CWU
date
8 Byte
System time for display on the room thermostat. See parameter
P07 (3 or 4)
3
Time of day
Time and
10.001
CWU
date
3 Byte
Another object for receiving the time of day for display on the room
thermostat. See parameter P07 (3 or 4)
4
Fault information
Alarm
219.001
CT
Info
6 Byte
Common alarm output. If an alarm occurs, the alarm number is
transmitted
5
Fault state
Faulty /
1.005
CT
normal
1 bit
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
Auto
20.102
CWTU
mode:
Comfort
1 Byte
Preselection
PreComf.
Economy
Protection
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).
Operating mode:
Trigger
1.017
CW
Preselection
1 bit
8
Auto
Comf
9
Eco
10
11
Prot
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
Comfort
20.102
CWU
mode: Time
Economy
1 Byte
switch
PreComf.
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).
Time switch
Trigger
1.017
CW
13
Comfort
1 bit
14
Economy
15
Protection
Switch the HVAC mode to either Comfort, Economy or Protection
mode.
Obj
16
Object name
Room operating
mode: State
Function
Type/ length
Flags
Comfort
20.102
CRT
Economy
1 Byte
Protection
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.
Room operating
ON
1.002
CT
mode:
OFF
1 bit
State Comfort
17
State Economy
18
19
State Protection
Corresponding communication object sends "True"
21
Room
Temp.
9.001
CRT
temperature
value
2 Bytes
The value of the room temperature measured via built-in or
external sensor is available via this communication object.
22
Room temperaTemp.
9.001
CWU
ture: Comfort
value
2 Bytes
basic setpoint
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
3.3.2).  The service life of the EEPROM depends on the number
of write cycles. Never write this communication object cyclically!
23
Room
Temp.
9.001
CWTU
temperature:
value
2 Bytes
Comfort setpoint
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.
9.001
CRT
value
2 Bytes
Current setpoint, including shift, compensation, etc., used by the
thermostat for temperature control
25
Heating output
0…100 % 5.001
CRT
primary
8 bit
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
0…100% 5.001
CRT
secondary
8 bit
Indicates the position of the heating actuator of the second stage.
E.g. 2-pipe with electric heater application: Output of the electric
heater.
27
Cooling output
0…100%
5.001
CRT
primary
8 bit
Indicates the position of the cooling actuator of the first stage.
E.g. 2-pipe with electric heater application: Output of the cooling
coil
29
Enable electric
Enable /
1.003
CWU
heating
disable
1 bit
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Obj Object name
Function
Type/ length
Flags
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 (parameter P38, P40).
Only one input source must be used, either local input X1/X2 or
KNX bus.
30
Heating / cooling
Heat /
1.100
CWU
changeover
Cool
1 bit
Changeover information transmitted via bus.
Default: Current mode before power down.
The same function is also available via local multifunctional input
X1/X2 (parameter P38, P40).
Only one input source must be used, either local input X1/X2 or
KNX bus..
31
Application mode
HVAC
20.105
CWU
control
8 bit
mode
0
Auto (default)
Heating and/or cooling
1
Heat
Heating only
2
Morning warmup*
Heating only
3
Cool
Cooling only
5
Precool*
Cooling only
6
OFF
Neither heating nor cooling
8
Emergency heat*
Heating only
9
Fan only
Fan runs at high speed
* Function handled like Heat (1) or Cool (3)
32
Enable fan
Enable
1.003
CWU
command value
Disable
1 bit
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.
33
Fan operation
Auto
1.001
CRT
Manual
1 bit
Indicates the status of the fan mode: Auto (0) or Manual (1).
34
Fan command
0…100%
5.001
CWU
value
8 bit
The fan can be set to a specified speed by a KNX control unit
when manual fan operation is enabled.
Speed
Fan command value (physical KNX value)
1
1...33%
(1…85)
2
34…67% (86...170)
3
68…100% (171…255)
Fan speed "0" is not supported by the thermostat and the fan
speed will remain unchanged.
35
Fan output
0…100%
5.001
CRT
8 bit
Indicates the current fan speed as a value 0...100%
Speed
Fan output (physical KNX value)
OFF
0%
(0)
1
33%
(84 )
2
66%
(186)
3
100% (255)
36
Fan speed 1
ON
37
Fan speed 2
OFF
38
Fan speed 3
Indicate the state of the relay outputs
1.001
1 bit
CRT
Obj Object name
Function
Type/ length
Flags
Indicate the status of the digital inputs (adjusted by parameters
P39/P41) including considering of operating action
44
Outside
Temp.
9.001
CWU
temperature
value
2 Byte
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).
45
Buttons left
ON
1.001
CT
ON/OFF
OFF
1 bit
51
Buttons right
ON/OFF
Switch control: Parameter ON/OFF functions = Top: ON; Bottom:
OFF
When pressing the button, the corresponding switching telegram is
sent immediately.
45
Button
ON
1.001
CT
top left: ON/OFF
OFF
1 bit
CWTU 1)
46
Button
bottom left: ON/OFF
51
Button
top right: ON/OFF
52
Button
bottom: Right
ON/OFF
Switch control: Parameter ON/OFF functions = 2 "ON/OFF"
functions.
When pressing the button, the corresponding switching telegram is
sent immediately: ON, OFF or Toggle.
1) If "Toggle" is selected, the communication object becomes
output and synchronization input
45
Buttons left:
ON
1.001
CT
ON/OFF
OFF
1 bit
Buttons right:
51
ON/OFF
47
Buttons left: Dim
Darker /
1.001
CT
up/down
Brighter
4 bit
Buttons right:
53
Dim up/down
On a short operation of the button, a switching telegram is sent,
e.g. press left top button: "On" is sent, press left bottom button:
"OFF" is sent.
When pressing the buttons longer, a dimming telegram is sent,
e.g. press left top button: "Brighter" is sent, press left bottom
button: "Darker" is sent.
On releasing the button, a "Stop" telegram is sent.
48
Buttons left:
Step /
1.001
CT
Blind step/stop
Stop
1 bit
Buttons right:
54
Blind step/stop
49
Buttons left:
Up /
1.001
CT
Blind up/down
Down
1 bit
Buttons right:
55
Blind up/down
On a short operation of the button, a telegram is sent to adjust the
louvers or stop the blinds if moving up or down.
On a long operation of the button, a telegram is sent to raise or
lower the blinds (up or down)
50
56
Buttons left:
Scene
Buttons right:
Scene
Scene
control
18.001
8 bit
CT
39
X1: Temperature
Temp.
9.001
CRT
40
X2: Temperature
value
2 Byte
Indicate the values of the temperature sensors connected to the
local inputs X1 / X2
41
X1: Digital
ON
1.001
CRT
42
X2: Digital
OFF
1 bit
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Obj Object name
Function
Type/ length
Flags
The "Scene (8-bit)" function is used to change the characteristics
of a preset scene, i.e. brightness levels and switching states of a
group within a scene, without using the ETS.
For scene control, short and long (<1 s / > 3 s) pressing on the
buttons are distinguished.
On a short press, a telegram is sent to recall the corresponding
scene. On a long press, a telegram is sent to save the corresponding scene.
For each button a different scene number can be configured in
ETS.
Specific RDF600KN objects
1)
20
Window state
Open
1.019
CWU
(RDF600KN)
Closed
1 bit
The RDF600KN is set to Protection 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. It has the same effect
as the local window contact X1, X2 (parameter P38, P40).
Only one input source must be used, either local input X1/X2 or
KNX bus.
45
Presence detector Unoccupied 1.019
CWU
(RDF600KN)
Occupied
1 bit
The thermostat is set to Comfort mode if value "1" (occupied) is
received. It switches back to the Economy when the value is "0"
(unoccupied).
"Presence detector" is sent via KNX. It has the same effect as the
local presence detector function on X1, X2 (parameter P38, P40).
Only one input source must be used, either local input X1/X2 or
KNX bus.
46
Room
Temp. value 9.001
CWU
temperature:
2 Bytes
Economy heating
setpoint
(RDF600KN)
Communication object to adjust the Economy heating setpoint
used by the thermostat (see section 3.3.2). It will direct change the
value of the local parameter Economy setpoint P11.
S-mode object needs to be enabled by setting “Room temp. :
Economy setpoints” to “as group object.
The Economy setpoint is stored in EEPROM. The service life of
the EEPROM depends on the number of write cycles. Never write
this communication object cyclically.
47
Room
Temp. value 9.001
CWU
temperature:
2 Bytes
Economy cooling
setpoint
(RDF600KN)
Communication object to adjust the Economy cooling setpoint
used by the thermostat (see section 3.3.2). It will direct change the
value of the local parameter Economy setpoint P12.
S-mode object needs to be enabled by setting “Room temp. :
Economy setpoints” to “as group object.
The Economy setpoint is stored in EEPROM. The service life of
the EEPROM depends on the number of write cycles. Never write
this communication object cyclically.
Specific RDF301 object
20
Window state
Open
1.019
CWU
(on RDF301…)
Closed
1 bit
The RDF301 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 (parameter P38, P40).
Only one input source must be used, either local input X1/X2 or
KNX bus.
1) RDF600KN SW < V1.8 works like RDF301…
with the operating mode switchover contact as
window contact or presence detector.
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3.13 Communication objects (LTE-mode)
RDF
Geographical zone
A.R.S
Room operating mode:
Time switch
(Time switch zone)
X.1.1 / X.Y.1
Application mode
Room operating mode:
Preselection
Geographical zone
A.R.S
X.Y.1
Room temperature output
Comfort setpoint
Setpoints heating
Setpoints cooling
Fan speed
Setpoint shift heating
Setpoint shift cooling
Heat distr. zone
Heating coil energy demand
heating coil
Heating/Cooling changeover
Ref. distr. zone
cooling coil
Cooling coil energy demand
Heat distr. zone
heating surface
Energy demand heating
surface
Broadcast
Fault transmission
Fault information
Fault text
Outside air temp. zone
Outside temperature
fix 31
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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, see page 51.
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
Enter only "Service"
level
Enter "Service" and
"Expert" level.
1. Press buttons + and – simultaneously for 4 seconds.
Release and press button + again within 2 seconds until the display shows "P01".
Continue with step 2.
1. Press buttons + and – simultaneously for 4 seconds.
Release and press button – again within 2 seconds until the display shows "P01".
Adjust parameters
2. Repeatedly press the + or – button to select the required parameter.
+
P01
- +
P02
+
-
P08
-
+
P13
- +
P14
-
End
-
3171z99
3. Press + and – simultaneously. The current value of the selected parameter
begins to flash, allowing you to change the value by repeatedly pressing + or –.
4. The next parameter is displayed when you press + and – again simultaneously.
5. Repeat steps 2 to 4 to display and change additional parameters.
6. Press + or – until "End" is displayed, and then press + and – simultaneously to
save the change and exit parameter entry mode.
Reset parameters
The factory setting for the control parameters can be reloaded via parameter P71,
by changing the value to "ON", and confirming by pressing buttons + and –
simultaneously. The display shows "8888" during reload.
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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.
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).
OZW772 Web server,
RMZ792 bus operator
unit
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 RDF
KNX thermostats. Device address, application, control parameters and parameters
for the switching groups can be defined and downloaded via ETS.
ETS
Note:
Connecting a KNX tool
• Setting RDF KNX parameters is only supported by ETS4 or higher / ACS version
5.11 or higher.
• The RDF KNX thermostats (without ETS parameter download) require version
ETS3f or higher.
Connecting a KNX commissioning / operating tool to the RDF is described in
section 4.2.
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P01
Range
2-pipe:
1 = Cooling only
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
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)
Service level
Control sequence
4-pipe:
4 = Heating and Cooling
1
P02
Operation via room op
selector
P04
Unit
C (0)
P05
P06
Measured value correction
Standard display
0K
0
P07
Additional display
information
0
P08
P09
P10
P11
Comfort basic setpoint
Comfort setpoint minimum
Comfort setpoint maximum
Economy heating setpoint
21 °C
5 °C
35 °C
15 °C
P12
Economy cooling setpoint
30 °C
P13
Electric heater when
cooling
Button lock
ON
Fan stage in dead zone
(Comfort)
(RDF600KN) 4)
0
P14
P15
0


























x

Dependencies
Factory setting
RDF301..
Parameter
Name
RDF600KN
3.14.3 Parameters of the "Service level"
P01
Appl.
4) Not available on RDF600KN SW < V1.8
Note:
Parameter display depends on selected application and function.
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Range
RDF600KN
2K
0.5 … 6 K


1K
0.5 … 6 K


2K
2K
0.5 … 5 K
0.5 … 5 K




Appl.
Appl.
5 min
45 min
16 °C
0…10 min
0...120 min
10…25 °C

x

x


P46
P46
P38, P40
28 °C
27…40 °C


P38, P40
3 = Op mode contact,
window contact








P40


P46
Dependencies
Factory setting
Parameter
Name
RDF301..
3.14.4 Parameters of the "Expert level
with diagnostics and test"
Expert level
P30
P31
P33
P34
P35
P36
P37
Heat P-band Xp /
switching diff
Cool P-band Xp /
switching diff
Dead zone Comfort mode
Setpoint differential
Integral action time Tn
RDF301... /
RDF600KN
H/C ch'over swi point
cooling
H/C ch'over swi point
heating
Input X1
P41
Normal position input X2
0 (N.O.)
P44
Actuator running time
Y11/Y21
RDF600KN:
Power of electric heater
on Y21 (for adaptive
temperature
compensation
Output Y11/Y21
150 s
0 = --- (no function)
1 = Room temp ext. sensor /
Return air temp (AI)
2 = H/C changeover (AI/DI)
3 = Operating mode contact,
Window contact (DI)
4 = Dew point sensor (DI)
5 = Enable electric heater (DI)
6 = Fault input (DI)
7 = Monitor input (Digital)
8 = Monitor input (Temp)
10: Presence detector (DI)
0 = Normally open
/ Open
1 = Normally closed / Close
0 = --- (no function)
1 = Room temp ext. sensor /
Return air temp (AI)
2 = H/C changeover (AI/DI)
3 = Operating mode contact,
Window contact (DI)
4 = Dew point sensor (DI)
5 = Enable electric heater (DI)
6 = Fault input (DI)
7 = Monitor input (Digital)
8 = Monitor input (Temp)
10: Presence detector (DI)
0 = Normally open
/ Open
1 = Normally closed / Close
20…300 sec
0.0 kW
0.0...1.2 kW
x

ON/OFF (1)


Appl.
ON time minimum 2-pos
output
OFF time minimum 2-pos
output
Purge time
1 min.
0 = 3-position
1 = ON/OFF
1...20 min


P46
1 min.
1...20 min


OFF
OFF:
Not active
1…5 min: Active with selected
duration
OFF, 10...50 °C


P38, P40


P38, P40
P38
RDF301…..
(range 0..8)
RDF600KN 5)
(range 0..10)
P39
Normal position input X1
0 (N.O.)
P40
Input X2
1 = Ext. sensor
RDF301…..
(range 0..8)
RDF600KN 5)
(range 0..10)
P45
P46
P48
P49
P50
P51
Flow temp limit floor
heating
OFF
P38
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Range
RDF301..
RDF600KN




P52




P52, Appl.
P52, P53,
DIP
P52, P53,
DIP
P52, P53,
DIP
P52
Dependencies
Factory setting
Parameter
Name
Expert level
P52
Fan control
1
P53
Fan speeds
3-speed
P54
P55
Fan overrun time
Fan speed switching point
high
Fan speed switching point
med
Fan speed switching point
low
Fan start kick
60 sec
100%
0 = Disabled
1 = Enabled
2 = Heating only
3 = Cooling only
1 = 1-speed
2 = 3-speed
0...360 sec
80...100%
65%
30..75%


10%
1...15%


ON
ON: Enabled
OFF: Disabled
1...6 min
0…89 min, OFF(90)





x
x

0…359 min, OFF(360)
OFF, 100…9900 h
OFF, 5…WCoolProt;
WCoolProt = 40 °C max
OFF, WHeatProt… 40;
WHeatProt = 5°C min
0...360 s








x

P52, P46
0...360 min
OFF = Disabled
ON = Enabled
OFF = Disabled
ON = Reload start
"8888" is displayed for 3s during
reload process




P02


P56
P57
P58
P59
P60
P61
P62
P65
P66
P67
P68
P69
P71
On time minimum fan
Periodic fan kick Comfort
RDF301...
RDF600KN
2 min
0
OFF
OFF
OFF (0)
8 °C
Periodic fan kick Eco
Service filter
Protection heating
setpoint
Protection cooling setpoint OFF
Fan start delay
(RDF600KN ) 4)
Temporary Comfort mode
Temporary Comfort
setpoint
Restore factory setting
0s
0 (= OFF)
OFF
OFF
P52
P52
P52
P52
4) Not available on RDF600KN SW < V1.8
Range
Communications
Dependencies
Factory setting
RDF301..
Parameter
Name
RDF600KN
5) On RDF600KN SW < V1.8, setting range 0…8
P81
Device address 1)
255
1…255


P82
Geographical zone
(apartment) 2)
Geographical zone (room)
---
---, 1...126


1
---, 1...63


Heat distr zone heating
coil
Refrig distr zone cooling
coil
Transformation
Precomfort
---
---, 1...31


Appl., P01
---
---, 1...31


Appl., P01
0
0 = Economy
1 = Comfort


P83
P84
P85
P88
2)
1)
2)
Physical address = Area.Line. DeviceAddress. Factory setting for Area = 0, Line = 2.
Can be changed by special management service e.g. from line coupler or via ACS commissioning tool.
Type = geographical zone A.R.S. In RDF sub zone = fixed value 1.
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Range
Dependencies
Parameter
Name
Diagnostics & test
d01
Application number
d02
X1 state
d03
X2 state
d05
Test mode for checking
the Y11/Y21 actuator's
running direction 3)
3)
NONE = (No application)
2P = 2-pipe
2P3P = 2-pipe 3-position
2PEH = 2-pipe with electric heater
4P = 4-pipe
"---"
= 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
"---" = no signal on outputs Y11 and Y21
OPE = output Y11 forced opening
CLO = output Y21 forced closing
P46
This parameter can only be quit when the setting is back at "---".
Press buttons + and – simultaneously to escape.
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4.
Handling
4.1
Mounting and installation
Mount the room thermostat on the conduit box. 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 /
dismounting
• 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.
• RDF301...: In case of limited space in the conduit box, use mounting bracket
ARG70.3 to increase the headroom by 10 mm.
• Before removing the front cover, disconnect the power supply.
Wiring
See Mounting Instructions enclosed with the thermostat.
M3171... [3], M3076.1 [3a]
• 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.
• Cables of SELV inputs X1-M/X2-M: Use cables with 230 V insulation, as the
conduit box carries AC 230 V mains voltage.
• Inputs X1-M or X2-M: Several switches (e.g. summer / winter switch) may be
connected in parallel. Consider overall maximum contact sensing current for
switch rating.
• KNX communication cables (input CE+ / CE-): Use cables with 230 V
insulation, as the conduit box carries AC 230 V mains voltage.
• No metal conduits.
• No cables provided with a metal sheath.
• Disconnect from supply before opening the cover.
• 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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4.2
Applications
Commissioning
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
DIP switches
Set the DIP switches before snapping the front panel 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 "NONE" to indicate that application
commissioning via a tool is required.
Note:
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:
Connect tool
KNX
KNX
L
X1
N Q1 Q2 Q3
M
X2
CE+ CEY11
Y21
N1
Siemens
N148 /
UP146 /
UP152
Siemens
OCI700
KNX
USB
V24
ETS
ETS / ACS
3171A03
RS232
ACS and ETS require an interface:
– RS232 KNX interface (e.g. Siemens N148 / UP146 / UP152)
– OCI700.1 USB-KNX interface
Note:
An external KNX bus power supply is required if an RDF is connected directly to a
tool (ACS or ETS) via KNX interface.
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Control parameters
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
Commissioning of switching groups for RDF301.50… is only possible with ETS).
The control parameters of the thermostat can be set to ensure optimum
performance of the entire system (see section 3.13, control parameters).
Control sequence
• The control sequence may need to be set via parameter P01 depending on the
application. The factory setting is as follows:
Application
2-pipe and chilled / heated ceiling
4-pipe, chilled ceiling and radiator
Factory setting P01
1 = cooling only
4 = heating and cooling
Compressor-based
applications
• When the thermostat is used with a compressor, adjust the minimum output ontime (parameter P48) and OFF-time (parameter P49) for Y11/Y21 to avoid
damaging the compressor or shortening its life due to frequent switching.
Calibrate sensor
• 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.
Setpoint and range
limitation
• We recommend to review the setpoints and setpoint ranges (parameters
P08…P12) and change them as needed to achieve maximum comfort and save
energy.
Programming mode
The programming mode helps identify the thermostat in the KNX network during
commissioning.
Press buttons "operating mode"
and "+" simultaneously for 6 sec to activate
programming mode, which is indicated on the display with "PrOg".
Programming mode remains active until thermostat identification is complete.
Assign KNX device
address
Assign device address (P81) via HMI, ACS or ETS.
Assign KNX group
addresses
Use ETS to assign the KNX group addresses of the thermostat's communication
objects.
Switching groups
RDF301.50... only
RDF301.50 and RDF301.50H have 2 switching groups with a pair of buttons each,
which must be configured via ETS. The switching groups only work in S-mode.
KNX serial number
Each device has a unique KNX serial number inside the front panel. An additional
sticker with the same KNX serial number is enclosed in the packaging box. This
sticker is intended for installers for documentation purposes.
With device address set to 255, the communication is deactivated (no exchange of
process data).
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4.3
Operation
See also Operating Instructions B3171 [2] enclosed with the thermostat.
Layout
1
2
1
2
4
4
2
1
5
3
3
RDF301, RDF600KN
RDF301.50
5
3
RDF301.50H
1 Operating mode selector
2 Button to change fan operation
3 Buttons to adjust setpoints and control parameters
RDF301.50
RDF301.50H
Button operation
4 Four buttons to control KNX actuators via KNX S-mode
(functions: switching, dimming, blind control, 8-bit scene)
5 Four dedicated buttons for hotel functions (Make Up Room, Do Not Disturb) via
KNX S-mode (functions: switching)
User action
Effect, description
Normal operation
Actual operating mode and state are
indicated by symbols
Backlit LCD turns on and… (see below for
further action)
After the last operation and a timeout of 10
seconds, the LCD backlight turns off
Change operating mode
Toggle between heating and cooling
Activate "Extend Comfort mode"
(for details, see page 18)
Activate / deactivate button lock
Press any button
(thermostat in normal operation)
Press left button (operating mode)
Press left button (P01 = 2)
Press left button while "Operating
mode switchover" via bus is activated
Press left button >5 / >3 seconds
(RDF301... / RDF600KN)
Press right button
Press + or –
Press + and – >3 seconds, release,
then press + again >3 seconds
Press + and – >3 seconds, release,
then press – again >3 seconds
Press operating mode button and "+"
simultaneously for 6 seconds
Change fan mode
Adjusts the Comfort room temperature
setpoint .
Thermostat changes to Comfort mode
Go to parameter setting mode "Service
level"
Go to parameter setting mode "Expert
level", diagnostics and test
Enter (KNX) programming mode
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Display
1
4
2
5
3
7
6
8
6
9
10
1 Operating mode
Protection
Comfort
Economy
Auto Timer according to
schedule (via bus)
5
Condensation in room (dew
point sensor active)
6
Indicates fault or reminder
7
Temporary Comfort mode
extension active
2 Displays room temperature, setpoints and control parameters.
Symbol indicates current room
temperature
8 Additional user information, like
outside temperature
or
time of day from KNX bus.
Selectable via parameters
3 Fan mode
9
Auto fan active
Fan speed
low, medium, high
Button lock active
10
Weekday 1…7 from KNX bus
(1 = Monday / 7 = Sunday)
4 Heating / cooling mode
Cooling
Heating
Electric heater active
4.4
Remote operation
The RDF KNX thermostats can be operated from a remote location using a
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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5.
5.1
Supported KNX tools
ETS
ETS is an engineering tool. It can be used for the full commissioning of the RDF
KNX thermostats.
ETS
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
Download the switching group parameters (RDF301.50)
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.
STOP
Setting RDF KNX parameters is only supported by ETS4 or higher.
ETS4 can be updated online.
Note!
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.
Note:
• 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.
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The application (plant type) and Control Sequence can be adjusted and downloaded.
The control parameters, ([Pxx] description) can also be adjusted and downloaded. Refer to section 3.13.
5.2
ACS
ACS Service and Operating tool
With the ACS tool, the RDF 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.
STOP
Note!
Setting RDF KNX parameters is only supported by ACS Version 5.11 or
higher.
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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…:
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 3.13, control parameters.
•
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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.
ACS
ACS supports parameter settings even during normal operation.
Parameter settings in
ACS
To change a control parameter, select Popcard, then Settings.
Note:
• 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.
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ACS provides standard plant diagrams for RDF KNX thermostats, which depend
on the configuration as follows:
• Plant type
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)
2-pipe and
electric
heater
2-pipe fan coil unit with electric heater
– Control sequence: No impact (P01 = any)
– Fan operation: Not disabled (P52 <> 0)
Single stage with electric heater
– 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
– Fan operation: Disabled
2-pipe
(P01 = 3)
(P52 = 0)
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5.2.3
Operation and monitoring with OZW772
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.
HomeControl app
for plant control
For details, see Commissioning Instructions CE1C5701.
5.2.4
Operation and monitoring with RMZ972
The RMZ792 is a communicating operator unit
designed for operating Synco™ 700 and RDF
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.
For details, see Basic Documentation CE1P3113.
Note:
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
4 = 4-pipe
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Connection
6.1
Connection terminals
L
N
SELV
3171A01
6.
X1
M
Q1 Q2 Q3
X2 CE+ CE Y11 N Y21
L, N
Q1
Q2
Q3
Y11,Y21
X1, X2
M
CE+
CE-
Operating voltage AC 230 V
Control output "Fan speed 1 AC 230 V"
Control output "Fan speed 2 AC 230 V"
Control output "Fan speed 3 AC 230 V"
Control output "Valve" AC 230 V (NO, for normally
closed valves), output for compressor or output for
electric heater
Multifunctional inputs for temperature sensor (e.g.
QAH11.1) or potential-free switch
Factory setting:
– X1 = Operating mode switchover contact
– X2 = External sensor
(function can be selected via parameters P38 / P40).
Measuring neutral for sensor and switch
KNX data +
KNX data -
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Application
Connection diagrams
L
AC 230 V
F
KNX
S1
S2
B1
B2
L
X1
M
CE+ CE-
X2
Y21
Y11
N Q1 Q2 Q3
Y1
M1
N
5(2)A
max.
5(2)A
max.
Y1
5(2)A
max.
Y1
5(2)A
max.
4-pipe
– Y1 = Heating
– Y2 = Cooling
1-stage compressor
– C1 = Heating
and / or
– C2 = Cooling)
1-stage compressor
and electric heater
N1
M1
Y1
Y1, Y2
E1
C1, C2
F
S1, S2
B1, B2
2-pipe, 3-position
– Y11 = Open
– Y21 = Close
2-pipe and electric
heater
N1
10 A
I II III
2-pipe, 2-position
3171A12
6.2
E1
5(2)A
max.
Y1
Y2
5(2)A
max.
5(2)A
max.
C1
C2
5(2)A
max.
5(2)A
max.
C1
5(2)A
max.
CE+
CE-
Room thermostat
RDF301... , RDF600KN
1- or 3-speed fan
Valve actuator, 2- or 3-position
Valve actuator, 2-position
Electric heater
1-stage compressor
External circuit breaker
Switch (keycard, window contact,
presence detector, etc.)
Temperature sensor (return air
temperature, external room
temperature, changeover sensor,
etc.)
KNX data +
KNX data –
E1
5(2)A
max.
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7.
Mechanical design
7.1
General
The thermostats consist of 2 parts:
• Front panel with electronics, operating elements and built-in room temperature
sensor.
• Mounting base with power electronics.
The rear of the mounting base carries the screw terminals.
Slide the front panel in the mounting base and snap on.
1
2
2
1
2
1
4
4
3
5
3
RDF301, RDF600KN
RDF301.50
5
3
RDF301.50H
1 Operating mode selector
2 Button for fan operation
3 Buttons to adjust setpoints and control parameters
RDF301.50
RDF301.50H
4 Four buttons to control KNX actuators via KNX S-mode
(functions: switching, dimming, blind control, 8-bit scene)
5 Four dedicated buttons for hotel functions (Make Up Room, Do Not Disturb)
via KNX S-mode (functions: switching)
For operation, refer to section 4.3.
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RDF301, RDF301.50..., RDF600KN
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Basic documentation
CE1P3171en
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7.2
Dimensions
Dimensions in mm
86
16
30
80
3076M13_01
14
3076M12
3171M13
86
3076M01
3076M01
86
RDF600KN
86
RDF301...
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8.
Power supply
Caution
Outputs
STOP
Note!
Caution
Inputs
KNX bus
Technical data
Rated voltage
AC 230 V
Overvoltage category
III
Frequency
50/60 Hz
Power consumption
RDF301...
Max. 4 VA / 3.0 W
RDF600KN
Max. 3.5 VA / 1.2 W
No internal fuse
External preliminary protection with max C 10A circuit breaker
Required in all cases
Fan control Q1, Q2, Q3-N
AC 230 V
Rating Min, Max resistive (inductive)
Min. 5 mA, Max. 5(2) A
Fans must NOT be connected in parallel!
Connect one fan directly, for additional fans,
one relay for each speed.
Control output Y11-N / Y21-N (NO)
Rating Min, Max resistive (inductive)
AC 230 V
Min. 5 mA, Max. 5(2) A
Max. total load current through terminal "L"
(Qx+Yxx)
Max. 7A
No internal fuse
External preliminary protection with max. C 10 A circuit breaker in the supply line
required under all circumstances
Multifunctional input X1-M/X2-M
Temperature sensor input
QAH11.1 (NTC)
Type
0...49 °C
Temperature range
Max. 80 m
Cable length
Digital input
Selectable (NO/NC)
Operating action
SELV DC 0...5 V/
Contact sensing
max. 5 mA
Parallel connection of several thermostats
Max. 20 thermostats per
for one switch
switch
Insulation against mains voltage (SELV)
4 kV, reinforced insulation
Function of inputs:
Selectable
X1: P38
External temperature sensor, heating / cooling
X2: P40
changeover sensor, operating mode switchover
contact, dew point monitor contact, enable electric
heater contact, fault contact, monitoring input
Interface type
KNX, TP1-64
(electrically isolated)
Bus current RDF301...
20 mA
RDF600KN
5 mA
Bus topology: See KNX Manual (see 1.2 "Reference documents")
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RDF301, RDF301.50..., RDF600KN
Technical data
Basic documentation
CE1P3171en
2014-05-23
Operational data
Switching differential (adjustable)
Heating mode
Cooling mode
Setpoint setting and range
Comfort
Economy
Protection
Multifunctional input X1/X2
Input X1 default value
(P30)
(P31)
(P08)
(P11-P12)
(P65-P66)
Input X2 default value
(P38)
(P40)
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C
Temperature calibration range
Settings and display resolution
Setpoints
Current temperature value displayed
Environmental conditions
Operation
Climatic conditions
Temperature
Humidity
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
Storage
Climatic conditions
Temperature
Humidity
Standards and directives
EU Conformity (CE)
Product standards
Automatic electric controls for household and
similar use
Special requirements for temperature-dependent
controls
Electronic control type
Electromagnetic compatibility
Emissions
Immunity
Low-voltage directive
Electrical safety
RCM Mark conformity (Emission)
Reduction of hazardous substances
Safety class
Pollution class
Degree of protection of housing
2 K (0.5...6 K)
1 K (0.5...6 K)
21°C (5...40 °C)
15°C/30 °C (OFF, 5...40 °C)
8°C/OFF (OFF, 5...40 °C)
Selectable 0...8
3 (operating mode
switchover)
1 (external temperature
sensor)
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...60 °C
<95% r.h.
Class 2M2
IEC 721-3-1
Class 1K3
-25...60 °C
<95% r.h.
EN60730–1
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
2011/65/EU
EN50581
II as per EN60730
Normal
IP30 as per EN60529
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RDF301, RDF301.50..., RDF600KN Basic documentation
Technical data
CE1P3171en
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Environmental
Compatibility
General
*)
The product environmental declaration CE1T3076xx contains data on
environmentally compatible product design and assessments (RoHS compliance,
materials composition, packaging, environmental benefit, disposal).
Connection terminals
Solid wires or prepared
stranded wires
2
1 x 0.4…1.5 mm
2
Minimal wiring cross section on
min 1.5 mm
L, N, Q1, Q2, Q3, Y11, Y21
Housing front color
RAL 9003 white
Weight without / with packaging
RDF301...
0.240 kg / 0.320 kg
RDF600KN
0.150 kg / 0.220 kg
*) The documents can be downloaded from http://siemens.com/bt/download.
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RDF301, RDF301.50..., RDF600KN
Technical data
Basic documentation
CE1P3171en
2014-05-23
Index
1
1-speed fan ........................................................... 46
3
3-position control signal ........................................ 43
3-speed fan ........................................................... 46
A
Applications overview ........................................... 26
Auto Timer mode .................................................. 16
Automatic heating / cooling changeover ......... 29, 32
Automatic heating / cooling changeover via bus .. 29
B
Basic application ................................................... 39
Button lock ............................................................ 31
C
Celsius .................................................................. 13
Changeover switch ............................................... 29
Chilled / heated ceiling applications ..................... 39
Clean fan filter reminder ....................................... 47
Compressor applications .......................... 27, 28, 40
Control outputs configuration ................................ 44
Control outputs overview ...................................... 43
Control parameters ............................................... 65
Control sequences ................................................ 32
Cooling demand .................................................... 56
Cooling sequence ................................................. 32
D
Dew point monitoring ...................................... 31, 49
Diagnostic ............................................................. 65
Disposal ................................................................ 75
E
Effect of Protection via time schedule................... 16
Electric heater ....................................................... 36
Enable / disable electric heater....................... 36, 50
Expert level parameters ........................................ 65
Extension of Comfort mode .................................. 18
External / return air temperature ........................... 49
External / return air temperature sensor ............... 29
F
Fahrenheit ............................................................. 13
Fan in Auto Timer mode........................................ 47
Fan in dead zone .................................................. 67
Fan kick function ................................................... 46
Fan minimum on-time ........................................... 46
Fan operation as per heating / cooling mode, or
disabled ............................................................. 46
Fan operation in dead zone ............................ 46, 47
Fan overrun .......................................................... 47
Fan start ............................................................... 47
Fan start delay .................................................... 48
Fault ...................................................................... 50
Fault on KNX ........................................................ 57
Fault, handling ...................................................... 51
Floor cooling ......................................................... 30
Floor heating ......................................................... 30
Floor temperature limitation function .................... 30
H
Heating / cooling changeover ......................... 29, 49
Heating and cooling sequence ............................. 32
Heating demand ................................................... 56
Heating sequence................................................. 32
I
Integral action time ............................................... 13
K
KNX addressing.................................................... 73
M
Main and secondary ............................................. 38
Manual heating / cooling changeover .................. 29
Manually select heating or cooling sequence ...... 32
Minimum output .................................................... 30
Moisture ................................................................ 30
Mounting and installation ...................................... 71
Multifunctional inputs ............................................ 49
O
ON/OFF control signal .......................................... 43
Operating mode
Priority intervention ........................................... 15
Operating mode button ......................................... 16
Operating mode switchover .................................. 49
Outside temperature ............................................. 13
P
Parameter setting ................................................. 65
Power failure ......................................................... 51
Precomfort ............................................................ 16
Presence detector ................................................ 14
Proportional band ................................................. 13
Protection mode / Standby ................................... 14
Purge function ...................................................... 30
PWM ..................................................................... 43
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RDF301, RDF301.50..., RDF600KN Basic documentation
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R
Radiator applications ............................................ 39
Reload factory settings ......................................... 65
Remote heating / cooling changeover ................. 29
Reset parameters ................................................. 65
S
Sensor input .......................................................... 49
Setpoint Comfort mode ......................................... 41
Setpoint Economy mode ...................................... 41
Setpoint limitation ................................................. 22
Setpoint priority ..................................................... 25
Setpoint Protection mode ..................................... 41
Setpoints and sequences ..................................... 41
Standby / Protection mode ....................................14
Switching differential .............................................13
Switching groups ...................................................58
Synchronization .....................................................44
T
Temperature out of range ......................................51
Temporary setpoint ................................................22
Test ........................................................................ 65
Time of day ............................................................ 13
Time schedule change mode ................................16
W
Window state .............................................14, 15, 49
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Index
CE1P3171en
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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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© 2010 - 2014 Siemens Switzerland Ltd
RDF301, RDF301.50..., RDF600KN Basic documentation
Index
Subject to change
CE1P3171en
2014-05-23
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