Thermokon STC-DO 8 Type 2 User manual

» STC-DO 8 Type 2
Wireless Actuator with 8 digital outputs and integrated FanCoil controller
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
Datasheet
Subject to technical alteration
Issue date: 12.01.2021 • A112
»APPLICATION
Bidirectional receiver with 8 digital outputs (or 12 with extension module STC-Plus 4DO). For heating/cooling control, fan coil control, incl. ext.
receiving antenna (2,5 m).
»TYPES AVAILABLE – TYPE 2
Wireless receiver – multi relay 24 V
STC-DO8 24 V type FanCoil, heating/cooling
Wireless receiver – multi relay 100..230 V
STC-DO8 230 V type FanCoil, heating/cooling
»SECURITY ADVICE – CAUTION
The installation and assembly of electrical equipment should only be performed by authorized personnel.
The product should only be used for the intended application. Unauthorised modifications are prohibited! The product must not be
used in relation with any equipment that in case of a failure may threaten, directly or indirectly, human health or life or result in
danger to human beings, animals or assets. Ensure all power is disconnected before installing. Do not connect to live/operating
equipment.
CAUTION! Risk of electric shock due to live components within the enclosure, especially devices with mains voltage
supply (usually between 90..265 V).
Please comply with
•Local laws, health & safety regulations, technical standards and regulations
•Condition of the device at the time of installation, to ensure safe installation
•This data sheet and installation manual
»NOTES ON DISPOSAL
As a component of a large-scale fixed installation, Thermokon products are intended to be used permanently as part of a building
or a structure at a pre-defined and dedicated location, hence the Waste Electrical and Electronic Act (WEEE) is not applicable.
However, most of the products may contain valuable materials that should be recycled and not disposed of as domestic waste.
Please note the relevant regulations for local disposal.
517690

Seite 2 / 21 Stand: 12.01.2021
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»PRODUCT TESTING AND CERTIFICATION
Declaration of conformity
The declaration of conformity of the products can be found on our website https://www.thermokon.de/.
»TECHNICAL DATA
Output switch contact
STC-DO8 24 V:
8x relay with change-over contact (floating), 24 V =/~ 6 A, 12x relay with additional module STC-PLUS 4DO
STC-DO8 100..230 V:
8x relay with change-over contact (floating), 230 V ~ 6 A, 12x relay with additional module STC-PLUS 4DO
Radio technology
EnOcean (IEC 14543-3-10), transmission power <10 mW
Frequency
868 MHz, optional 902 MHz / 315 MHz
Antenna
external transmit- / receive antenna
Data transmission
bidirectional
Power supply
STC-DO8 24 V:
18..24 V = / ~ SELV
STC-DO8 100..230 V:
100..240 V ~ (±10%)
Power consumption
STC-DO8 24 V:
typ. 2,0 W (24 V =) | 3,5 VA (24 V ~)
STC-DO8 100..230 V:
3,5 VA
Display
LCD 37,5 mm x 31,6 mm
Functions
fancoil controller, heating ON/OFF, fan release, lighting, blinds/shutter
No. Of buttons
6 capacitive touch sensor buttons
Switching values
STC-DO8 24 V:
6 A resistive load (24 V =/~)
STC-DO8 100..230 V:
6 A resistive load (230 V ~)
Enclosure
ABS, light grey
Protection
IP20 according to EN 60529
Connection electrical
terminal block, max. 1,5 mm²
Ambient condition
0..+60 °C max. 85% rH non-condensing
Weight
ca. 250 g (without external antenna)
Mounting
prepared for mounting on DIN rail TS35 (35x7,5 mm) according to EN 60715
Delivery contents
external transmit- / receive antenna with magnetic holding
Notes
For inductive and / or capacitive loads, a suitable protection must be provided (varistor, RC element, inrush
current limiting element, ...).

Stand: 12.01.2021 Seite 3 / 21
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»COMPATIBILITY LIST (OVERVIEW OF THE SUPPORTED RADIO TELEGRAMS (EEP´S)/DEVICES)
It is possible to connect the following numbers of sensors to the STC-DO8 per output/channel:
•max. 1x room sensor type SR04x, SR06x or SR07x
•max. 10x digital input modules SR65DI, EnOcean switch or occupancy sensors SR-MDS, MOC, MOW (solar)
•max. 20x window contacts SRW01 or window handles SRG01
•max. 1x superior control unit (EnOcean Profile EEP A5-20-12)
•max. 1x EnOcean valve actuator
Any 4 byte EnOcean based sensor (4BS) can be learned-in to the STC-DO8 via the menu point “Learning-in of individual sensor“.
The evaluation of the data detected by this sensor can be freely parameterized by the user. Thus, it is also possible to learn-in and
to evaluate sensors which's profiles are not supported by the STC-DO8 actually. (see page 16 individual sensor)
EEP (EnOcean Equipment Profiles) Device
D5-00-01 single input contact SRW01, thanos, SR65 DI
F6-02-01 (F6-02-xx) rocker switch SR-MDS Solar, SR65-DI, Handsender
F6-04-01 key card activated switch SR-KCS, SR65-DI
F6-10-00 window handle SRG01
A5-02-05 temperature 0°C..+40°C SR04, SR07, SR65 T
A5-04-01 temperature 0°C..+40°C and humidity 0..100% SR04 rH, SR07 rH, SR65 rH
A5-07-01 occupancy with supply voltage monitor SR-MOC, SR-MOW, SR-MDS Solar, SR65-DI
A5-08-01
illuminance 0..510lx, temperature 0..+51°C, occupancy
button
SR-MDS, SR-MDS Solar
A5-09-04 CO2, temperature SR04 CO2
A5-30-01 single input contact, battery monitor SR65 DI
A5-10-01 temperature, set point, fan speed and occupancy control SR04 PST
A5-10-02 temperature, set point control SR04 PS MS, thanos SR
A5-10-03 temperature, set point control SR04P, SR07P, SR06 2T
A5-10-04 temperature, set point, fan speed control SR04 PS, SR06 4T Typ1
A5-10-05 temperature, set point and occupancy control SR04 PT, SR07 PT
A5-10-06 temperature, set point and day/night control SR04 P MS, SR07 P MS
A5-10-10 temperature, humidity, set point and occupancy control SR04 PT rH, SR07 PT rH
A5-10-11 temperature, humidity, set point and day/night control SR04 P MS rH, SR07 P MS rH, Thanos SR
A5-10-12 temperature, humidity and set point SR04 P rH, SR07 P rH, SR06 2T rH
A5-10-13 temperature, humidity and occupancy control SR04 T rH, SR07 T rH
A5-10-0C temperature and occupancy control SR04 T
A5-20-01 Battery powered actuator SAB05
A5-20-12
Temperature Controller Input
Übergeordnete Steuerung
»INFORMATION ABOUT EASYSENS® (RADIO) / AIRCONFIG GENERAL USAGE
EasySens® - airConfig
Basic information about EasySens®radio and about general usage of our airConfig software, please download
from our website.
»OVERVIEW OF THE RADIO TELEGRAMS
EEP
The structure of the data contained in the telegram can be found in the EEP (EnOcean equipment profile) list
provided by the EnOcean Alliance.

Seite 4 / 21 Stand: 12.01.2021
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»MOUNTING ADVICES
The housing of the module is designed for installation on standard DIN rails according to DIN EN 60715. For operation, a separate external 868
MHz receiving antenna is necessary.
The antenna has a magnetic flux and must be mounted in the middle of a metal plate with the minimum dimensions 180 mm x 180 mm (material:
galvanized sheet steel, please see “accessories”). The ideal mounting place in rooms is found approx. 1 m under the ceiling (optimum radio
transmission range). The antenna should be adjusted vertically downwards and should have a minimum distance of approx. 90 mm to the wall.
The distance to other senders (e.g. GSM/DECT/Wireless LAN/ EnOcean senders) should be 2 m at least. To match the colour of the room, the
antenna can be painted, accordingly (do not use any metallic lacquers).
Cable Laying Notice
•Cable laying should be made in an electric conduit.
•A cable crushing should be avoided.
•The minimum bending radius of the extension cable amounts to 50mm
•Do not use an active pull-up device for the cable laying, in order to avoid any damages of the sheathing respectively of the connectors.
»CONNECTION PLAN
STC-DO8 24 V STC-DO8 230 V
Assignment of the outputs
The functions of the individual outputs in dependence on the device settings are shown in the following table:
Notice:
A combination of low voltage and mains voltage at the individual outputs is not safe. All relay outputs must use a common phase - various phases
are prohibited.

Stand: 12.01.2021 Seite 5 / 21
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
4-pipe system, 3-stage fan, 1 switching output
for control of lighting and 2 switching outputs for control of a blind/shutter motor.
2-pipe system, 2-stage fan, 2 switching outputs
for control of a blind/shutter motor.

Seite 6 / 21 Stand: 12.01.2021
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»FUNCTION DESCRIPTION
The STC-DO8 compares the room temperature provided by the wireless sensor with the calculated set point. If the room temperature falls below
/ exceeds the calculated set point, the relays are controlled by the controller according to the corresponding device settings.
The receiver calculates the set point of the room temperature from the adjusted basic set point (default 21°C) and the set point adjustment (default
-5k…+5k).
The radio sensor cyclically sends a radio telegram with the measured values to the receiver. In normal operating mode, the reception of a taught-
in sensor is indicated at the receiver by a brief lighting up of the "RXD Radio" LED.
Energy Stop Function:
If a window contact or window handle is connected, the STC-DO8 can only switch on the corresponding heating-output if
•the information “window closed” is provided by the window contact/window handle,
•or no signal of the window contact is received in the recent 45 minutes (defective window contact)
•or “window opened” is reported by the window contact/window handle, but the room temperature has fallen below the antifreeze limit set
(default 8°C).
Function Comfort/Lowering Operation:
The STC-DO8 has an integrated time switch by which an automatic toggling from comfort to lowering mode or from lowering to comfort mode can
be effected. Thus, the time switch has 8 timer clocks, which can be assigned to each output/channel and every weekday.
Furthermore, it is possible to set the STC-DO8 manually into the lowering mode when using the room sensors SR04P MS / SR07P MS or up to 10
sensors of the digital input module SR65DI or wireless EnOcean switches.
When having connected the occupancy sensor (SR-MDS) or when using room sensors SR04T, SR04PT or SR04PST the comfort time adjusted
at the STC-DO8 can be prolonged.
Thus, it can be avoided that the temperature is switched down by the controller although the room is still occupied.
Comfort Operating:
In the comfort operation the set point of the controller is formed as follows:
Basic set point + local set point adjustment.
Lowering Operating:
In the lowering operation the set point of the controller is formed as follows:
Basic set point - lowering temperature
With the SR04P MS the switching-over is made by the slide switch (position 1 = lowering mode, position 0 = comfort mode).
As for the SR07P MS the switchingover is made by the slide switch (position night = lowering mode, position day = comfort mode). As for the SR65
DI the switchingover is made by the digital input for floating contacts (contact open = lowering mode, contact closed = comfort mode). As for the
EnOcean wireless switches, the switchingover is made by button actuation (Position 1 = comfort mode, position 0 = lowering mode).
Toggling between Heating and Cooling
Via a “change over sensor” an operating mode (heating or cooling) can be predefined to the STC-DO8. This is especially necessary for 2-pipe
systems, because there is only one valve for heating and cooling available. As a “change over sensor” the SR04P(S) MS (slide switch position 1
= cooling, position 0 = heating) SR65 DI (input open = heating, input closed = cooling) as well as the SR65 VFG (temperature falls below adjusted
switching threshold = cooling, temperature is greater than/equal to adjusted switching threshold= heating) can be used.
Switching Outputs
The STC-DO8 Fan Coil provides 3 to 5 switching outputs (depending on the number of required fan stages) with different functions. By means of
these outputs, lighting and blinds/shutters can be controlled.
The following functions are available: Universal, 1-button operation, 2-button operation, blind function, shutter function.
For further information, please see the following descriptions.

Stand: 12.01.2021 Seite 7 / 21
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»FANCOIL CONTROLLER
PI-Controller
As for the PI-controller the control variable (Y) is calculated by means of the room temperature, the set point and the adjusted control parameter
Xp/Tn.
The control variable is output to the corresponding relay output in form of a pulse width modulation (PWM). The property setting of the PI-controller
[ (P) amplifying P-Band, (I) reset time Tn and the PWM period] can be field adjusted for each output in the configuration menu.
Fan Stages
By means of the calculated control variable as well as the definable switching thresholds, the fan stage is automatically set at the fan coil. Via the
manual operation on the sensor (SR04PST) the fan can be manually adjusted, as well.
Switching Outputs
Function Universal
The corresponding output is switched as soon as a switch-on command is received by one or several sensors. All sensors learned-in are logical
OR circuit linked. That is to say, as soon as any window contact SRW01 reports “window opened” or any digital module SR65 DI “contact closed”
or a multi ceiling sensor SR-MDS reports “occupancy” or a window handle reports “window opened or tilted” or an EnOcean wireless switch is
switched-on, the relay is switched. In reverse order, the relay is only deactivated, if the switch-off command is received from all sensors.
Function 1-Button Operation
The corresponding output is switched-on, as soon as the learned-in button of an EnOcean switch is pushed and automatically reset after expiry of
an adjustable after-run time (5 seconds…120 minutes).
If the after-run time is deactivated, the output switches-on as long as the button is released again (button operation).
If the after-run time is set to “continuously ON”, the output is switched-on after actuation of the learned-in button and is only switched-off when the
button is pushed again.
Function 2-Button Operation
The corresponding output is switched-on, as soon as the I-button of a learned-in EnOcean switch is pushed and is reset after actuation of the O-
button of a learned-in EnOcean switch.
Function Blind and Shutter
The outputs 5/6 (5: down, 6: up) and 7/8 (7: down, 8: up) can be used for controlling blinds and shutters.
Blind function: The output Up/Down is switched-on as long as the button Up/Down is pushed. If the corresponding button is pushed for more than
2 seconds, the output remains switched-on for the period of the adjustable after-run time (lock).
Shutter function: The output Up/Down is switched-on for the period of the adjustable after-run time if the button Up/Down is pushed. If the
corresponding button keeps pressed for more than 2 seconds and is released again afterwards, the output switches off immediately. The outputs
for “up” and “down” are locked back-to-back by the software, so that always only one relay is switched and a damage of the blind/shutter drive is
avoided.
During installation/wiring a wired interlock has to be included additionally according to the application example shown in this product sheet.

Seite 8 / 21 Stand: 12.01.2021
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»CONFIGURATION
The STC-DO8 has 6 capacitive buttons which re-calibrate themselves automatically after a reset. In order to guarantee a smooth function of the
buttons, they must not be touched during calibration. Calibration is finished as soon as the green LED (power) shines continuously.
The STC-DO8 has a configuration menu via which any properties can be set. The menu is partitioned into 3 levels, whereas for operation each
level is exactly assigned to 2 keys.
Notice:
For menu items in which 1 value shall be changed (e.g. basic set point), the left button has the function "left/-" and the right button "right/+".
For menu items in which 2 values shall be changed (e.g. time including hours and minutes), the left button has the function "Value A +" and the
right button "Value B +".
For menu items in which more than 2 values shall be changed, the left button has the function "Selected value +" and the right button "Select
value".
Fancoil Controller
The fan coil controller is parameterized via the menu points “fan coil general & heating” and “fan coil cooling”.
Via “fan coil general & heating”, the settings for the heating function are made. In addition, settings which are valid for the heating and cooling
functions in the same way are determined in this menu point (learning-in/deleting of sensors, set point adjustment, night lowering, number of fan
stages, pipe system…).
Via “fan coil cooling” exclusively the settings for the cooling function are made and the “change over sensors” are administrated.
Parameterization of Outputs
The function that shall be parameterized can be selected by the function keys F1 and F2.
By means of the keys F3 and F4 the requested property can be chosen afterwards. With F5 and F6 the values can be changed.

Stand: 12.01.2021 Seite 9 / 21
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
»FANCOIL GENERAL & HEATING
Basic Set Point
Setting of requested heating basic set point
Adjustable range: 10,0°C..30,0°C
Resolution: 0,1k
Factory setting: 20,0 °C
Antifreeze
Setting of antifreeze limit.
The controller switches to 100% (heating) if the
antifreeze limit is under-run, even if a window is
opened.
Adjustable range: 5°C…15°C
Resolution: 1K
Factory setting: 8°C
Set Point Adjustment
Manual adjustment of the heating and cooling set
point on the sensor.
Adjustable range: ±0K…±10k
Resolution: 1K
Factory setting: ±5K
Standby Lowering
The heat-/cooling set point is lowered/ increased by
this value when a main-controller sends „Standby“.
Adjustable range: 0K…15K
Resolution: 1K
Factory setting: 2K
Notice: Only possible with a superior control unit
(EnOcean Profile EEP A5-20-12)
Night Lowering
The heat-/cooling set point is lowered/increased by
this value outside the comfort time.
Adjustable range: 0K…15K
Resolution: 1K
Factory setting: 4K
Proportional Range Xp
Setting of Xp for the heating controller. Xp shows
the proportional range between the control
difference (deviation of actual value and set point)
and the control variable.
Adjustable range: 0,1…10,0K
Resolution: 0,1K
Factory setting: 4,0K
Integral range Tn
Setting of integral range Tn for the heating
controller. The integral range is the time which an I-
controller needs to achieve the same control
variable change, which is effected instantly by a PI-
controller due to its P-part.
Adjustable range: 0…255 minutes
Resolution: 1 minute
Factory setting: 90 minutes
Minimal Control Variable
Setting of minimal control variable for the heating
controller. This control variable is output by the PI-
controller at minimum, even if there is no actuation.
Adjustable range: 0%...100%
Resolution: 1%
Factory setting: 0%

Seite 10 / 21 Stand: 12.01.2021
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: [phone] · fax: -400 · www.thermokon.com [e-mail]
STC-DO8_Typ2_EasySens_Datasheet_en.docx © 2021
Maximal Control Variable
Setting of maximal control variable for the heating
controller. This control variable is output by the PI-
controller at maximum.
Adjustable range: 0%...100%
Resolution: 1%
Factory setting: 0%
PMW-Cycle Time
Setting of PWM-cycle time for the heating controller.
Adjustable range: 1…255 minutes
Resolution: 1 minute
Factory setting: 15 minutes
Send EnOcean-ID
Menu point to send a learn telegram of the output.
Press F6 to generate a learn telegram.
Number of Fan Stages
Fan stage adjustment of fan coil.
Possible selections: 1, 2 or 3 Stage(s)
Factory setting: 3 Stages
Adjustable range: 0 ... 100%
Factory setting: 1%
Resolution: 1%
Fan stage 1 at Output Value
Adjustment of switching threshold for fan stage 1 in
heating operation. If the heater is in the heating
mode and the control variable reaches the value set
in this menu point, the output for fan stage 1 is
switched on. The relays for the other fan stages will
be switched off.
Fan stage 2 at Output Value
Adjustment of switching threshold for fan stage 2 in
heating operation. If the heater is in the heating
mode and the control variable reaches the value set
in this menu point, the output for fan stage 2 is
switched on. The relays for the other fan stages will
be switched off.
Adjustable range: 0 ... 100%
Factory setting: 33%
Resolution: 1%
Fan stage 3 at Output Value
Adjustment of switching threshold for fan stage 3 in
heating operation. If the heater is in the heating
mode and the control variable reaches the value set
in this menu point, the output for fan stage 3 is
switched on. The relays for the other fan stages will
be switched off.
Adjustable range: 0 ... 100%
Factory setting: 66%
Resolution: 1%
Turn-on Time with max. Fan Stage
By means of this property it is determined how long
the fan shall run at maximum stage during the
startup, to guarantee a proper run up of the fan
motor.
Adjustable range: 0 ... 255 Seconds
Factory setting: 5 Seconds
Resolution: 1 Second