Contro l4 C4-KNX-THERM Series User manual

200-00547-B 10292018-LW
Control Element 2/4-fold with RTC FM. SKU: C4-KNX-THERM-xx (KNXPROD File Name: SBR/U2.1.41-83)
This manual describes the function and configuration of the Control Element 2/4-fold with RTC.
Control Element 2/4-fold with RTC FM SKU C4-KNX-THERM-xx
(KNXPROD File Name: SBR/U2.1.41-83. Download: http://ctrl4.co/knx-therm).
Subject to change.
Exclusion of liability:
Although the contents of this document have been checked to ensure that they are consistent
with the hardware and software, deviations cannot be completely excluded.
We therefore cannot accept liability. Any necessary corrections will be incorporated in new
versions of the manual.
Please inform us of any suggested improvements.

Technical Reference Manual
│3
Table of contents
2.1 Information and symbols used........................................................................................................................ 9
2.2 Intended use................................................................................................................................................. 10
2.3 Improper use ................................................................................................................................................ 10
2.4 Target group / Qualifications of personnel.................................................................................................... 11
2.4.1 Operation ..................................................................................................................................................... 11
2.4.2 Installation, commissioning and maintenance ............................................................................................. 11
2.5 Safety instructions ........................................................................................................................................ 12
3.1 Environment ................................................................................................................................................. 13
4.1 Features of function and equipment ............................................................................................................. 14
4.2 Device overview ........................................................................................................................................... 16
4.3 Additional components ................................................................................................................................. 16
5.1 Technical data .............................................................................................................................................. 17
5.2 Dimensional drawings .................................................................................................................................. 17
6.1 Requirements for the electrician................................................................................................................... 18
6.2 Installation site.............................................................................................................................................. 19
6.3 Mounting....................................................................................................................................................... 21
6.4 Electrical connection..................................................................................................................................... 23
7.1Software ....................................................................................................................................................... 24
7.1.1 Preparation .................................................................................................................................................. 24
7.1.2 Assigning a physical address....................................................................................................................... 24
7.1.3 Assigning the group address(es) ................................................................................................................. 24
7.1.4 Selecting the application program ............................................................................................................... 24
7.1.5 Differentiating the application program ........................................................................................................ 24
8.1 Control elements .......................................................................................................................................... 25
8.2 Displays / messages..................................................................................................................................... 26
8.3 Button backlighting ....................................................................................................................................... 26
8.4 General control and display functions .......................................................................................................... 27
8.5 Operating the room temperature controller .................................................................................................. 29
8.6 Additional operating modes and alarms ....................................................................................................... 32
9.1 Cleaning ....................................................................................................................................................... 33
9.2 Maintenance-free device .............................................................................................................................. 33
10.1 Application program...................................................................................................................................... 34
10.2 Application "RTC" ......................................................................................................................................... 35
10.2.1 General - Device function ............................................................................................................................ 35
10.2.2 General - Control function............................................................................................................................ 35
10.2.3 General - Operating mode after reset.......................................................................................................... 36
10.2.4 General - Additional functions...................................................................................................................... 36
10.2.5 General - Send cyclic "In operation" (min)................................................................................................... 37
10.2.6 Heating control............................................................................................................................................. 37
10.2.7 Heating control - Control value type ............................................................................................................ 37
10.2.8 Heating control - Heating type ..................................................................................................................... 38
10.2.9 Heating control - P-component (x 0.1°C) .................................................................................................... 38
10.2.10 Heating control - I-component (min.) ........................................................................................................... 39
10.2.11 Heating control - Extended settings............................................................................................................. 39
10.2.12 Basic stage heating...................................................................................................................................... 39

Table of contents
10.2.13 Basic stage heating - Status object heating................................................................................................. 39
10.2.14 Basic stage heating - Mode of the control value.......................................................................................... 39
10.2.15 Basic stage heating - Hysteresis (x 0.1°C).................................................................................................. 40
10.2.16 Basic stage heating - Control value difference for sending of heating control value................................... 40
10.2.17 Basic stage heating - Cyclic sending of the control value (min) .................................................................. 40
10.2.18 Basic stage heating - PWM cycle heating (min) .......................................................................................... 41
10.2.19 Basic stage heating - Maximum control value (0 - 255) .............................................................................. 41
10.2.20 Basic stage heating - Minimum control value for basic load (0 to 255) ....................................................... 41
10.2.21 Control of additional heating stage .............................................................................................................. 41
10.2.22 Control of additional heating stage - Control value type.............................................................................. 42
10.2.23 Control of additional heating stage - Additional heating type ...................................................................... 43
10.2.24 Control of additional heating stage - P-component (x 0.1°C)...................................................................... 43
10.2.25 Control of additional heating stage - P-component (min) ............................................................................ 44
10.2.26 Control of additional heating stage - Temperature difference to basic stage (x 0.1°C) .............................. 44
10.2.27 Control of additional heating stage - Extended settings .............................................................................. 44
10.2.28 Additional heating stage............................................................................................................................... 44
10.2.29 Additional heating stage - Mode of the control value................................................................................... 44
10.2.30 Additional heating stage - Hysteresis (x 0.1°C)........................................................................................... 45
10.2.31 Additional heating stage - Control value difference for sending of heating control value............................ 45
10.2.32 Additional heating stage - Cyclic sending of the control value (min) ........................................................... 46
10.2.33 Additional heating stage - Minimum control value for basic load (0 - 255).................................................. 46
10.2.34 Cooling control ............................................................................................................................................. 47
10.2.35 Cooling control - Control value type............................................................................................................. 47
10.2.36 Cooling control - Cooling type...................................................................................................................... 48
10.2.37 Cooling control - P-component (x 0.1°C)..................................................................................................... 48
10.2.38 Cooling control - I-component (min.) ........................................................................................................... 48
10.2.39 Cooling control - Extended settings ............................................................................................................. 49
10.2.40 Basic stage cooling...................................................................................................................................... 49
10.2.41 Basic stage cooling - Status object cooling ................................................................................................. 49
10.2.42 Basic stage cooling - Mode of the control value .......................................................................................... 49
10.2.43 Basic stage cooling - Hysteresis (x 0.1°C) .................................................................................................. 50
10.2.44 Basic stage cooling - Cyclic sending of the control value (min)................................................................... 50
10.2.45 Basic stage cooling...................................................................................................................................... 51
10.2.46 Basic stage cooling - Maximum control value (0 - 255)............................................................................... 51
10.2.47 Basic stage cooling - Minimum control value for basic load (0 to 255)........................................................ 51
10.2.48 Control of additional cooling stage............................................................................................................... 52
10.2.49 Control of additional cooling stage - Cooling type ....................................................................................... 53
10.2.50 Control of additional cooling stage - P-component (x 0.1°C) ...................................................................... 53
10.2.51 Control of additional cooling stage - P-component (min)............................................................................. 53
10.2.52 Control of additional cooling stage - Extended settings............................................................................... 54
10.2.53 Additional cooling stage............................................................................................................................... 54
10.2.54 Additional cooling stage - Mode of the control value ................................................................................... 54
10.2.55 Additional cooling stage - Hysteresis (x 0.1°C) ........................................................................................... 54
10.2.56 Additional cooling stage - Control value difference for sending of cooling control value............................. 55
10.2.57 Additional cooling stage - Cyclic sending of the control value (min)............................................................ 55
10.2.58 Additional cooling stage - Maximum control value (0 - 255)........................................................................ 55
10.2.59 Additional cooling stage - Minimum control value for basic load (0 - 255) .................................................. 56
10.2.60 Settings of basic load................................................................................................................................... 56
10.2.61 Settings of basic load - Minimum control value for basic load > 0............................................................... 56
10.2.62 Combined heating and cooling modes ........................................................................................................ 56
10.2.63 Combined heating and cooling modes - Switchover of heating/cooling ...................................................... 57
10.2.64 Combined heating and cooling modes - Operating mode after reset.......................................................... 57
10.2.65 Combined heating and cooling modes - Heating/cooling control value output............................................ 57

Table of contents
10.2.66 Combined heating and cooling modes - Additional heating/cooling stage control value output.................. 58
10.2.67 Setpoint settings .......................................................................................................................................... 58
10.2.68 Setpoint settings - Setpoint for heating comfort = setpoint for cooling comfort ........................................... 58
10.2.69 Setpoint settings - Hysteresis for switchover heating/cooling (x 0.1°C) ...................................................... 59
10.2.70 Setpoint settings - Setpoint temperature for heating and cooling comfort (°C)........................................... 59
10.2.71 Setpoint settings - Setpoint temperature for heating comfort (°C) .............................................................. 59
10.2.72 Setpoint settings - Reduction for standby heating (°C) ............................................................................... 59
10.2.73 Setpoint settings - Reduction for ECO heating (°C) .................................................................................... 60
10.2.74 Setpoint settings - Set-point temperature for frost protection (°C) .............................................................. 60
10.2.75 Setpoint settings - Setpoint temperature for cooling comfort (°C)............................................................... 60
10.2.76 Setpoint settings - Increase for standby cooling (°C) .................................................................................. 60
10.2.77 Setpoint settings - Increase for ECO cooling (°C) ....................................................................................... 61
10.2.78 Setpoint settings - Set-point temperature for heat protection (°C) .............................................................. 61
10.2.79 Setpoint settings - Display indicates ............................................................................................................ 61
10.2.80 Setpoint settings - Display indicates ............................................................................................................ 61
10.2.81 Setpoint settings - Send current setpoint..................................................................................................... 62
10.2.82 Setpoint settings - Cyclic sending of the current set-point temperature (min)............................................. 62
10.2.83 Setpoint adjustment ..................................................................................................................................... 62
10.2.84 Setpoint adjustment —Maximum manual increase during heating mode (0 - 15°C) ................................. 62
10.2.85 Setpoint adjustment —Maximum manual reduction during heating mode (0 - 15°C) ................................ 62
10.2.86 Setpoint adjustment —Maximum manual increase during cooling mode (0 - 15°C).................................. 64
10.2.87 Setpoint adjustment —Maximum manual reduction during cooling mode (0 - 15°C) ................................ 64
10.2.88 Setpoint adjustment - Resetting of the manual adjustment for receipt of a basic setpoint.......................... 64
10.2.89 Setpoint adjustment - Resetting the manual adjustment for change of operating mode............................. 65
10.2.90 Setpoint adjustment - Resetting the manual adjustment via object............................................................. 65
10.2.91 Setpoint adjustment - Permanent storage of on-site operation ................................................................... 65
10.2.92 Temperature reading - Inputs of temperature reading................................................................................. 65
10.2.93 Temperature reading - Inputs of weighted temperature reading ................................................................. 66
10.2.94 Temperature reading - Weighting of internal measurement (0 to 100%) .................................................... 66
10.2.95 Temperature reading - Weighting of external measurement (0 to 100%) ................................................... 66
10.2.96 Temperature reading - Weighting of external measurement 2 (0 to 100%) ................................................ 66
10.2.97 Temperature reading - Cyclic sending of the actual temperature (min) ...................................................... 67
10.2.98 Temperature reading - Difference of value for sending the actual temperature (x 0.1°C) .......................... 67
10.2.99 Temperature reading - Adjustment value for internal temperature measurement (x 0.1°C) ....................... 67
10.2.100 Temperature reading - Monitoring time for temperature reading (0 = no monitoring) (min)........................ 67
10.2.101 Temperature reading —Operating mode for fault....................................................................................... 68
10.2.102 Temperature reading - Control value for fault (0 - 255) ............................................................................... 68
10.2.103 Alarm functions ............................................................................................................................................ 68
10.2.104 Alarm functions - Condensate water alarm.................................................................................................. 68
10.2.105 Alarm functions —Dew point alarm ............................................................................................................ 69
10.2.106 Alarm functions - Frost alarm temperature for HVAC and RHCC status (°C)............................................. 69
10.2.107 Alarm functions - Heat alarm temperature for RHCC status (°C)................................................................ 69
10.2.108 Fan coil settings - Fan speed levels ............................................................................................................ 69
10.2.109 Fan coil settings - Fan speed levels Number of fan speed levels ............................................................... 69
10.2.110 Fan coil settings - Fan speed levels - Format of the level output ................................................................ 70
10.2.111 Fan coil settings - Fan speed levels - Level output...................................................................................... 70
10.2.112 Fan coil settings - Fan speed levels - Lowest manually adjustable level .................................................... 70
10.2.113 Fan coil settings - Fan speed levels - Level status evaluation .................................................................... 71
10.2.114 Fan coil settings heating .............................................................................................................................. 71
10.2.115 Fan coil settings for heating - Speed level 1 to 5 up to control value (0 to 255) heating............................. 71
10.2.116 Fan coil settings for heating - Fan speed level limit heating for eco mode.................................................. 71
10.2.117 Fan coil settings for heating - Maximum speed level heating for eco mode................................................ 72
10.2.118 Fan coil settings for cooling ......................................................................................................................... 72

Table of contents
10.2.119 Fan coil settings for cooling - Speed level 1 to 5 up to control value (0 to 255) cooling.............................. 72
10.2.120 Fan coil settings for cooling - Fan speed level limit cooling for eco mode................................................... 72
10.2.121 Fan coil settings for cooling - Maximum fan speed level cooling for eco mode........................................... 72
10.2.122 Summer compensation ................................................................................................................................ 73
10.2.123 Summer compensation - Summer compensation........................................................................................ 73
10.2.124 Summer compensation - (Lower) Starting temperature for summer compensation (°C)............................ 74
10.2.125 Summer compensation - Offset of the set-point temperature for the entry into summer compensation (x 0.1°C)
74
10.2.126 Summer compensation - (Upper) exit temperature for summer compensation (°C)................................... 74
10.2.127 Summer compensation - Offset of the set-point temperature for the exit from summer compensation (x 0.1°C)
75
10.3 Additional RTC application "Control settings"............................................................................................... 76
10.3.1 General –Jump-back to the primary function.............................................................................................. 76
10.3.2 Temperature display –Temperature unit..................................................................................................... 76
10.3.3 General - Setting the temperature unit via object ........................................................................................ 76
10.3.4 General - Setpoint display............................................................................................................................ 76
10.3.5 General - Display of actual temperature...................................................................................................... 77
10.3.6 General - Waiting period for display of actual temperature ......................................................................... 77
10.3.7 General - Display of actual temperature in eco mode ................................................................................. 77
10.3.8 Brightness setting –Day/Night mode .......................................................................................................... 78
10.3.9 Brightness setting –Brightness of display backlighting............................................................................... 78
10.4 Communication objects - RTC...................................................................................................................... 79
10.4.1 Heating control value ................................................................................................................................... 79
10.4.2 Additional heating stage............................................................................................................................... 79
10.4.3 Cooling control value ................................................................................................................................... 79
10.4.4 Additional cooling stage............................................................................................................................... 80
10.4.5 Control On/Off.............................................................................................................................................. 80
10.4.6 Actual temperature....................................................................................................................................... 80
10.4.7 External actual temperature......................................................................................................................... 81
10.4.8 External actual temperature 2...................................................................................................................... 81
10.4.9 Fault, actual temperature............................................................................................................................. 81
10.4.10 Local actual temperature ............................................................................................................................. 81
10.4.11 Current setpoint ........................................................................................................................................... 82
10.4.12 Operating mode ........................................................................................................................................... 82
10.4.13 Superimposed operating mode.................................................................................................................... 83
10.4.14 Window contact............................................................................................................................................ 83
10.4.15 Presence detector........................................................................................................................................ 84
10.4.16 Heating status .............................................................................................................................................. 84
10.4.17 Cooling status .............................................................................................................................................. 84
10.4.18 Basic load .................................................................................................................................................... 85
10.4.19 Switchover heating/cooling .......................................................................................................................... 85
10.4.20 Fan coil manual............................................................................................................................................ 86
10.4.21 Fan coil step................................................................................................................................................. 86
10.4.22 Fan coil step status...................................................................................................................................... 87
10.4.23 Fan speed level 1......................................................................................................................................... 87
10.4.24 Fan speed level 2......................................................................................................................................... 87
10.4.25 Fan speed level 3......................................................................................................................................... 87
10.4.26 Fan speed level 4......................................................................................................................................... 87
10.4.27 Fan speed level 5......................................................................................................................................... 88
10.4.28 Basic setpoint............................................................................................................................................... 88
10.4.29 Resetting manual setpoints.......................................................................................................................... 88
10.4.30 Dew point alarm ........................................................................................................................................... 88
10.4.31 Condensate water alarm.............................................................................................................................. 89

Table of contents
10.4.32 Outside temperature for summer compensation ......................................................................................... 89
10.4.33 Summer compensation active...................................................................................................................... 90
10.4.34 Setpoint reached.......................................................................................................................................... 90
10.4.35 Fahrenheit.................................................................................................................................................... 90
10.4.36 Display backlighting ..................................................................................................................................... 91
10.4.37 On/Off request ............................................................................................................................................. 91
10.4.38 Setpoint display............................................................................................................................................ 91
10.4.39 Request setpoint .......................................................................................................................................... 91
10.4.40 Confirm setpoint........................................................................................................................................... 91
10.4.41 Heating/cooling request ............................................................................................................................... 92
10.4.42 Request fan speed level manual ................................................................................................................. 92
10.4.43 Request fan speed level .............................................................................................................................. 92
10.4.44 Confirm fan speed level ............................................................................................................................... 92
10.4.45 Controller status RHCC ............................................................................................................................... 93
10.4.46 Controller status HVAC................................................................................................................................ 93
10.4.47 Commissioned ............................................................................................................................................. 93
10.5 Additional RTC communication objects "Control settings" ........................................................................... 94
10.5.1 Day/Night mode ........................................................................................................................................... 94
10.6 Application for "Button top right"................................................................................................................... 95
10.6.1 Application "1-button switching"................................................................................................................... 95
10.6.2 Application "1-button dimming".................................................................................................................... 96
10.6.3 Application "2-button value transmitter"....................................................................................................... 97
10.6.4 Application "1-button value transmitter, 2 objects" ...................................................................................... 99
10.6.5 Application "1-button light scene extension unit with memory function".................................................... 102
10.6.6 Application "1-button step switch".............................................................................................................. 103
10.6.7 Application "1-button short-long operation" ............................................................................................... 104
10.7 Application for "General functions" ............................................................................................................. 105
10.7.1 Cyclic telegram .......................................................................................................................................... 105
10.7.2 Priority........................................................................................................................................................ 106
10.7.3 Logic........................................................................................................................................................... 107
10.7.4 Gate ........................................................................................................................................................... 108
10.7.5 Staircase lighting........................................................................................................................................ 109
10.7.6 Delay.......................................................................................................................................................... 110
10.7.7 Min/Max value transducer.......................................................................................................................... 111
10.7.8 Threshold value / hysteresis ...................................................................................................................... 112
10.7.9 Light scene actuator................................................................................................................................... 113

Notes on the instruction manual
│8
Please read through this manual carefully and observe the information it contains. This will
assist you in preventing injuries and damage to property and ensure both reliable operation and
a long service life for the device.
Please keep this manual in a safe place.
If you transfer this device to another individual, please be sure they receive this manual.
Control4 accepts no liability for any failure to observe the instructions in this manual.
For more information or for questions about the device, please contact Control4 or visit our
website at: www.control4.com

Notes on the instruction manual
│9
The device has been constructed according to the latest valid regulations governing technology
and is operationally reliable. It has been tested and left the factory in a technically safe and
reliable state.
However, residual hazards remain. Read and adhere to the safety instructions to prevent
hazards of this kind.
Control4 accepts no liability for any failure to observe the safety instructions.
The following Instructions point to particular hazards involved in the use of the device or provide
practical instructions.
Danger
Risk of death / serious damage to health
–The respective warning symbol in connection with the signal word "Danger"
indicates an imminently threatening danger which leads to death or serious
(irreversible) injuries.
Warning
Serious damage to health
–The respective warning symbol in connection with the signal word "Warning"
indicates a threatening danger which can lead to death or serious
(irreversible) injuries.
Caution
Damage to health
–The respective warning symbol in connection with the signal word "Caution"
indicates a danger which can lead to minor (irreversible) injuries.
Attention
Damage to property
–This symbol in connection with the signal word "Attention" indicates a
situation which could cause damage to the product itself or to objects in its
surroundings.
NOTE
This symbol in connection with the word "Note" indicates useful tips and
recommendations for the efficient handling of the product.
The following safety symbols are used in the operating manual.
This symbol alerts to electric voltage.

Notes on the instruction manual
│10
The device is intended for the following:
■the control of a ventilator convector with a fan coil actuator.
■the control of conventional heating and cooling installations.
■operation according to the listed technical data.
■the installation in dry interior rooms.
■mounting on a flush-mounted bus/network coupler, which is to be ordered separately.
The intended use also includes adherence to all specifications in this manual.
NOTE
■The integrated bus coupler makes possible the connection to a KNX bus
line.
■Extensive functions are available for the room temperature controller and the
control elements. For the range of applications, see chapter 10 “Description
of application and parameters” on page 34.
Each use not listed in Chapter 2.2 “Intended use“ on page 10 is deemed improper use and can
lead to personal injury and damage to property.
Control4 is not liable for damages caused by use deemed contrary to the intended use of the
device. The associated risk is borne exclusively by the user/operator.
The device is not intended for the following:
■Unauthorized structural changes
■Repairs
■Outdoor use
■Use in bathroom areas
■Inserting of objects through device openings

Notes on the instruction manual
│11
No special qualifications are needed to operate the device.
Installation, commissioning and maintenance of the device must only be carried out by trained
and properly qualified electrical installers.
The electrical installer must have read and understood the manual and follow the instructions
provided.
The electrical installer must adhere to the valid national regulations in his/her country governing
the installation, functional test, repair and maintenance of electrical products.
The electrical installer must be familiar with and correctly apply the "five safety rules" (DIN VDE
0105, EN 50110):
1. Disconnect
2. Secure against being re-connected
3. Ensure there is no voltage
4. Connect to earth and short-circuit
5. Cover or barricade adjacent live parts

Notes on the instruction manual
│12
Danger - Electric voltage!
Electric voltage! Risk of death and fire due to electric voltage of 230 V.
Dangerous currents flow through the body when coming into direct or indirect
contact with live components. This can result in electric shock, burns or even
death.
■Work on the 230 V supply system may only be performed by authorized and
qualified electricians.
■Disconnect the mains power supply before installation / disassembly.
■Never use the device with damaged connecting cables.
■Do not open covers firmly bolted to the housing of the device.
■Use the device only in a technically faultless state.
■Do not make changes to or perform repairs on the device, on its components
or its accessories.
■Keep the device away from water and wet surroundings.
Caution! - Risk of damaging the device due to external factors!
Moisture and contamination can damage the device.
■Protect the device against humidity, dirt and damage during transport,
storage and operation.

Notes on the instruction manual
│13
Consider the protection of the environment!
Used electric and electronic devices must not be disposed of with domestic
waste.
–The device contains valuable raw materials which can be recycled.
Therefore, dispose of the device at the appropriate collecting depot.
All packaging materials and devices bear the markings and test seals for proper disposal.
Always dispose of the packaging material and electric devices and their components via the
authorized collecting depots and disposal companies.
The products meet the legal requirements, in particular the laws governing electronic and
electrical devices and the REACH ordinance.
(EU Directive 2002/96/EC WEEE and 2002/95/EC RoHS)
(EU REACH ordinance and law for the implementation of the ordinance (EC) No.1907/2006).

Notes on the instruction manual
│14
The Control Element 2/4-fold with RTC (room temperature controller) FM (flush-mounting)
mounts on a flush-mounted bus/network coupler (C4-KNX-BC).
The room temperature controller senses the current room temperature and regulates the
heating or cooling. The device also serves to control two-/four-pipe systems (2-/4-pipe fan coil
units) and conventional air-conditioning units. Additionally, further switch-control telegrams can
be sent to KNX actuators, to activate a connected ventilator, for example.
Hotel management systems can gain direct access to the room temperature controller via KNX
and activate controllers in the room. The fan speed level can also be selected manually via
buttons (forced operation).
This makes it possible to very quickly adjust the temperature in a hotel room to the individual
wishes of the guests. The device supports the full function for international hotel applications. It
can function in the operating modes "heating/cooling", "only heating" and "only cooling".
For operation and display, the room temperature controller is equipped with push-buttons and a
rotary control element. An LCD display serves to indicate the current operating states and
values. The use of simple icons on the buttons and in the display allow the room temperature
controller to be operated easily and intuitively.
The Control Element 2/4-fold with RTC FM can, depending on the configuration, be used in a
variety of ways:
■As a normal sensor with the freely programmable functions.
–Here an additional button must be pressed to switch to the RTC adjustment level (*).
■As pure room temperature controller.
–Here the sensor is in the RTC adjustment level right from the start.
(*) There is the added option of setting the setpoint adjustment on the switching/dimming
operating level (1st level without actuating the additional button). The On/Off +
heating/cooling switchover function is carried out with the "Switching" button function.

Notes on the instruction manual
│15
The following table lists the options for use:
Special features
Function
General functions
■Function illumination
■Set / actual temperature
■Light scene actuator
■Freely programmable
■Comfort/standby
■Sequence
■Day / night switchover of the
LEDs
■Night mode
■Logic
■Theft protection
■Frost protection
■Delay
■Labelling possible
■Heat protection
■Staircase lighting
■Heating
■Preset
■Cooling
■Cyclic telegram
■Fan control
■Flashing
■Logic functions
■Gate
■Min/Max value transducer
■Threshold value / hysteresis
■PWM inverter
■Priority
In addition to the room
temperature controller function
the control elements can,
depending on the configuration,
be occupied with additional
applications.
■Switching
■Dimming
■Blind
■Value transmitter
■Setting the RTC operating
mode
■Light scene extension unit
■Logic functions
■LED colour concept
■Switching sequences
■Multiple operation
■among others
Table 1: Options for use

Notes on the instruction manual
│16
7
6
4
5
1 2 3
[1] ECO button
[2] Labelling field
[3] Menu button
[4] Setpoint adjustment
[5] LED
[6] Display
[7] Switchover button
Fig. 1: Overview of devices (front view)
NOTE
Please observe the special mounting instructions at Chapter 6 “Connection,
installation / mounting“ on page 18.
NOTE
Also, a cover frame and a flush-mounted bus/network coupler are required.
These must be ordered separately.

Notes on the instruction manual
│17
Designation
Value
Power supply
■Bus coupler:
24 V DC (via bus line)
■Network coupler:
230 V AC / 50 Hz
Bus subscribers:
Maximum 12 mA
KNX connection
■Bus coupler:
Bus connecting terminal, screwless
■Network coupler:
Screw terminals on the flush-mounted insert
Temperature range:
-5°C - +45°C
Protection type:
IP20
Storage temperature:
-20°C - +70°C
Table 2: Technical data
63
63
Fig. 2: Dimensions
NOTE
All dimensions are in mm.

Notes on the instruction manual
│18
Danger - Electric voltage!
Risk of death due to electrical voltage of 230 V during short-circuit in the low-
voltage line.
–Low-voltage and 230 V cables must not be installed together in a flush-
mounted socket!
Danger - Electric voltage!
Install the device only if you have the necessary electrical engineering
knowledge and experience.
■Incorrect installation endangers your life and that of the user of the electrical
system.
■Incorrect installation can cause serious damage to property, e.g. due to fire.
The minimum necessary expert knowledge and requirements for the installation
are as follows:
■Apply the "five safety rules" (DIN VDE 0105, EN 50110):
1. Disconnect
2. Secure against being re-connected
3. Ensure there is no voltage
4. Connect to earth and short-circuit
5. Cover or barricade adjacent live parts.
■Use suitable personal protective clothing.
■Use only suitable tools and measuring devices.
■Check the type of supply network (TN system, IT system, TT system) to
secure the following power supply conditions (classic connection to ground,
protective earthing, necessary additional measures, etc.).

Notes on the instruction manual
│19
For proper commissioning please observe the following points:
■The room temperature controller
should be installed at a height of
approximately 150 cm from the floor
and 50 cm from a door frame.
Fig. 3: Installation site - Distance
■The room temperature controller
should be installed on a wall opposite
a radiator.
Fig. 4: Installation site –Position of radiator
■The angles of room architecture
should not separate a radiator and
the room temperature controller from
each other.
Fig. 5: Installation site - Room architecture
■Installing a room temperature
controller close to a radiator or
behind curtains is not practical.
Fig. 6: Installation site –Position of RTC

Notes on the instruction manual
│20
■This also applies to the installation on
an exterior wall.
–Low outside temperatures have
an effect on temperature
regulation.
Fig. 7: Installation site - Exterior wall
■Wetting the room temperature
controller with fluids is to be avoided.
Fig. 8: Installation site –Wetting with fluids
■Just as heat radiated from electric
loads can impair the temperature
regulation, so can direct sunlight on
the room temperature controller.
Fig. 9: Installation site - Direct sunlight