Tech Controllers EU-L-9r User manual

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EU-L-9r

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SPIS TREŚCI
I. Safety ...............................................................................................................................................................................5
II. Device Description...........................................................................................................................................................6
III. How to install the controller ...........................................................................................................................................6
IV. First start-up ....................................................................................................................................................................6
V. Main screen view and description ................................................................................................................................14
VI. Controller functions.......................................................................................................................................................16
1. Block diagram –controller menu .................................................................................................................................16
2. Operation mode ...........................................................................................................................................................16
3. Zones ............................................................................................................................................................................17
4. External sensor.............................................................................................................................................................17
4.1. Weather-based control........................................................................................................................................17
4.2. Calibration ...........................................................................................................................................................17
5. Manual mode ...............................................................................................................................................................17
6. Registration ..................................................................................................................................................................17
7. Time settings ................................................................................................................................................................18
8. Display settings.............................................................................................................................................................18
9. Language selection .......................................................................................................................................................18
10. Fitter's menu............................................................................................................................................................18
11. SErvice menu............................................................................................................................................................18
12. Software version ......................................................................................................................................................18
VII. Zones..............................................................................................................................................................................18
1. Type of sensor ..............................................................................................................................................................18
2. Pre-set temperature.....................................................................................................................................................18
3. Operation mode ...........................................................................................................................................................19
4. User settings.................................................................................................................................................................19
4.1. House heating......................................................................................................................................................19
4.2. Heating.................................................................................................................................................................19
4.3. Cooling.................................................................................................................................................................19
4.4. Temperature settings ..........................................................................................................................................19
5. Floor heating ................................................................................................................................................................20
5.1. Registration..........................................................................................................................................................20
5.2. Information..........................................................................................................................................................20
5.3. Operation mode ..................................................................................................................................................20
5.4. Minimum temperature........................................................................................................................................20
5.5. Maximum temperature .......................................................................................................................................20
5.6. Hysteresis.............................................................................................................................................................20

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5.7. Calibration ...........................................................................................................................................................21
6. Hysteresis .....................................................................................................................................................................21
7. Calibration ....................................................................................................................................................................21
8. Thermostatic actuators ................................................................................................................................................21
8.1. Registration..........................................................................................................................................................21
8.2. Valve actuators ....................................................................................................................................................21
8.3. Information..........................................................................................................................................................21
8.4. Settings ................................................................................................................................................................21
9. Window sensors ...........................................................................................................................................................22
9.1. Registration..........................................................................................................................................................22
9.2. Sensor removal ....................................................................................................................................................23
9.3. Information..........................................................................................................................................................23
9.4. Settings ................................................................................................................................................................23
VIII. Fitter's menu..................................................................................................................................................................23
1. Contact operation modeVoltage-free contact .............................................................................................................23
1.1. Pump....................................................................................................................................................................24
2. Additional contacts.......................................................................................................................................................24
2.1. Registration..........................................................................................................................................................24
3. Heating - cooling...........................................................................................................................................................24
4. Valve settings ...............................................................................................................................................................25
4.1. ON/OFF ................................................................................................................................................................25
4.2. Pre-set valve temperature...................................................................................................................................25
4.3. Calibration ...........................................................................................................................................................25
4.4. Single stroke ........................................................................................................................................................25
4.5. Minimum opening ...............................................................................................................................................25
4.6. Opening time .......................................................................................................................................................25
4.7. Measurment pause..............................................................................................................................................25
4.8. Valve hysteresis ...................................................................................................................................................25
4.9. Valve type ............................................................................................................................................................26
4.10. Weather –based control .....................................................................................................................................26
4.11. Room regulator....................................................................................................................................................26
4.12. Proportionality coefficient...................................................................................................................................26
4.13. Opening direction ................................................................................................................................................27
4.14. Return protection ................................................................................................................................................27
4.15. Valve pump..........................................................................................................................................................27
4.16. Valve removal ......................................................................................................................................................27
4.17. Factory settings....................................................................................................................................................28

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5. Humidity protection .....................................................................................................................................................28
6. Factory settings ............................................................................................................................................................28
IX. Schedule settings...........................................................................................................................................................28
X. Software update............................................................................................................................................................30
XI. Technical data................................................................................................................................................................30
XII. Protections and alarms..................................................................................................................................................30
KN.17.01.2020

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I. SAFETY
Before using the device for the first time the user should read the following regulations carefully. Not obeying the rules
included in this manual may lead to personal injuries or controller damage. The user’s manual should be stored in a safe place
for further reference. In order to avoid accidents and errors it should be ensured that every person using the device has
familiarized themselves with the principle of operation as well as security functions of the controller. If the device is to be
sold or put in a different place, make sure that the user’s manual is there with the device so that any potential user has access
to essential information about the device.
The manufacturer does not accept responsibility for any injuries or damage resulting from negligence; therefore, users are
obliged to take the necessary safety measures listed in this manual to protect their lives and property.
WARNING
High voltage! Make sure the regulator is disconnected from the mains before performing any activities involving the
power supply (plugging cables, installing the device etc.).
The device should be installed by a qualified electrician.
Before starting the controller, the user shoud measure earthing resistance of the electric motors as well as the
insulation resistance of the cables.
The regulator should not be operated by children.
NOTE
The device may be damaged if struck by a lightning. Make sure the plug is disconnected from the power supply
during storm.
Any use other than specified by the manufacturer is forbidden.
Before and during the heating season, the controller should be checked for condition of its cables. The user should
also check if the controller is properly mounted and clean it if dusty or dirty.
Changes in the merchandise described in the manual may have been introduced subsequent to its completion on January
17th 2020. The manufacturer retains the right to introduce changes to the structure. The illustrations may include additional
equipment. Print technology may result in differences in colours shown.
We are committed to protecting the environment. Manufacturing electronic devices imposes an
obligation of providing for environmentally safe disposal of used electronic components and
devices. Hence, we have been entered into a register kept by the Inspection For Environmental
Protection. The crossed-out bin symbol on a product means that the product may not be
disposed of to household waste containers. Recycling of wastes helps to protect the
environment. The user is obliged to transfer their used equipment to a collection point where all
electric and electronic components will be recycled.

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II. DEVICE DESCRIPTION
EU-L-9r external controller is intended for controlling valves. The controller enables significant energy saving due to precise
temperature management in particular rooms. Due to advanced software, the controller fulfils a wide range of functions:
•possibility of controlling up to 19 thermostatic actuators via 8 room sensors or room regulators EU-C-8r, EU-R-8b, EU-
C-mini, EU-R-9s, EU-R-9b, EU-R-9z
•one 230V output for a pump
•control of the heating or cooling device via voltage-free contact
•possibility of connecting EU-M-9 control panel
•possibility of controlling the mixing valve (via i-1m valve module)
•possibility of updating the software via USB
•possibility of setting up an individual operation schedule for each zone
•weather-based control
•control of wireless window sensors (up to 6 per zone)
•control of floor temperature sensor
•control of wireless STT-868 or STT-869 actuators (up to 6 per zone)
III. HOW TO INSTALL THE CONTROLLER
EU-L-9r controller should be installed by a qualified person. It may be installed as a free-standing device or as a panel
mountable on a wall.
WARNING
Risk of fatal electric shock from touching live connections. Before working on the controller switch off the
power supply and prevent it from being accidentally switched on.
WARNING
Incorrect connection of cables may lead to controller damage.
IV. FIRST START-UP
Follow these step while starting the device for the first time to ensure its failure-free operation:
Step 1. Connect EU-L-9r controller with all the devices to be controlled
In order to connect the wires, remove the controller cover and connect the cables according to the connector labels and th
e schemes below.
NOTE
There are two ways of establishing main RS communication between external controllers and between EU-M-
9r panel and external controller: with the use of RJ jack or with the use of a 4-pin pluggable terminal block.

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Pictorial diagram of wiring up and communication between the devices in the system:

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Scheme illustrating connection and communication between devices in the system using RJ jack:

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Scheme illustrating connection and communication between devices in the system using a pluggable terminal block:

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Step 2. Switch on the power supply and check if the devices work properly
Once all the devices has been connected, switch on the power supply.
Use the Manual mode function to check if each device works properly - use the buttons ▲▼to select the device and press
MENU button - the device should be activated. Follow the procedure to check all the devices.
Step 3. Set current time and date
Set current date and time - use the parameters in MENU --> Time settings.
Krok 4. How to configure temperature sensors or a control panel
To enable EU-L-9r external controller to control a given zone, it is necessary to provide it with current temperature value.
The easiest way is to use temperature sensor EU-C-8r, EU-R-8b or EU-C-mini. If the user wants to be able to change the
pre-set temperature value directly from the zone, it is advisable to use EU-R-9b, EU-R-9s or EU-R-9z.
It is possible to use EU-M-9r control panel. It serves as a master controller enabling the user to change the pre-set zone
temperatures, adjust the local and global weekly schedules etc. Only one room regulator of this type may be installed in
the heating system.
Room regulators must be registered in a particular zone in EU-L-9r controller menu.
Krok 5. How to configure the remaining peripherals:
EU- L-9r controller may cooperate with such devices as:
-STT-868 or STT-869 wireless actuators
- wireless window sensors
- floor sensor
- mixing valve
If the user wants to use such devices in the heating system, they should be connected and/or registered.

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How to connect sensors and room regulators:

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V. MAIN SCREEN VIEW AND DESCRIPTION
The user navigates in the menu structure using the buttons located next to the display.
1. Display
2. ▲- „up” „plus” – it is used to view the menu options and increase the value while editing parameters. During
standard operation the button is used to switch between different zones parameters.
3. ▼ - „down” „minus” - it is used to view the menu options and decrease the value while editing parameters.
During standard operation the button is used to switch between different zones parameters.
4. MENU button –it is used to enter the controller menu and confirm the new settings.
5. EXIT button –it is used to exit the menu and cancel the settings.
Example screen –zones view
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2
5
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7
9
10
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12
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3
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1. Current day of the week
2. External temperature
3. Pump ON
4. Voltage-free contact ON ( (heating = flame icon; cooling = fan icon).
5. Current time
6. Current operation mode in the zone
7. Sensor battery level in a given zone (highlighted number on the zone information bar - description no. 12).
8. Signal strength of the temperature sensor in a given zone (highlighted number on the zone information bar -
description no. 12).
9. Pre-set temperature in a given zone (highlighted number on the zone information bar - description no. 12).
10. Current temperature of the floor sensor in a given zone (highlighted number on the zone information bar -
description no. 12).
11. Current temperature of the room sensor in a given zone (highlighted number on the zone information bar -
description no. 12).
12. Zone information. The digit displayed indicates the corresponding room sensor which is connected and sends
current zone temperature readings. If the zone temperature is too low, the digit flashes. In the event of a zone
alarm, an exclamation mark is displayed in the place of the digit. In order to view the operation parameters of a
given zone, select its number using ▲or ▼.
Example screen –zone view
1. Signal strength of the temperature sensor in a given zone
2. Pump ON
3. Voltage-free contact ON ( (heating = flame icon; cooling = fan icon)
4. Pre-set temperature in a given zone
5. Sensor battery level in a given zone
6. Current time
7. Current operation mode in the zone
8. Current room temperature in a given zone
1
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2
3
4
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9. Current floor temperature in the given zone
10. Maximum and minimum floor temperature
11. Information about the number of window sensors registered in a given zone
12. Information about the number of thermostatic actuators registered in a given zone
13. External temperature
14. Zone name
VI. CONTROLLER FUNCTIONS
1. BLOCK DIAGRAM –CONTROLLER MENU
2. OPERATION MODE
Menu
Operation mode
Normal mode
Holiday mode
Economical mode
Comfort mode
Zones 1-8
External sensor
Type of sensor
Temperature
Weather-based control
Calibration
Manual mode
Registration
Time settings
Clock settings
Date settings
Display settings
Screensaver
Button souns
Screen view
Display contrast
Screen brightness
Screen blanking
Screen blanking time
Language selection
Fitter΄s menu
Service menu
Software version

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This function enables the user to activate a given operation mode in the zone.
Normal mode –pre-set temperature depends on the selected schedule.
Holiday mode –the pre-set temperature depends on ‘Temperature settings’ parameter ( Menu > Zones > User’s
settings > Temperature settings > Holiday temperature).
Economical mode –the pre-set temperature depends on ‘Temperature settings’ parameter ( Menu > Zones > User’s
settings > Temperature settings > Economical temperature).
Comfort mode –the pre-set temperature depends on ‘Temperature settings’ parameter ( Menu > Zones > User’s
settings > Temperature settings > Comfort temperature).
3. ZONES
Zones menu is described in detail in section VII.
4. EXTERNAL SENSOR
It is possible to connect an external temperature sensor which enables the user to activate the weather-based control. The
current external temperature value is displayed in the main screen view.
4.1. WEATHER-BASED CONTROL
Once the external sensor has been activated, the main screen displays external temperature value whereas the main menu
offers average external temperature.
Averaging time –the user sets the time period based on which the average external temperature is calculated. The
settings range is 6-24 hours.
Temperature threshold –this function protects the zone against excessive temperature. The zone in which weather-
based control has been activated will not be heated when the average daily temperature outside exceeds the pre-
set threshold value. For example, when the temperature rises in spring, the controller will prevent the zones from
being heated unnecessarily.
4.2. CALIBRATION
Sensor calibration is performed while mounting or after it has been used for a long time, if the room temperature displayed
differs from the actual temperature. Calibration range is from -10⁰C to +10⁰C with the accuracy of 0,1⁰C.
5. MANUAL MODE
This function enables the user to activate particular devices (pump, voltage-free contact and valve actuators) independently
of the others in order to check if they operate properly. It is advisable to check the devices using this procedure at the first
start-up.
6. REGISTRATION
This function is used to register EU-M-9r room regulator, which enables the user to extend the system to 4 external controllers
and be able to control all the zones via the Internet.
Follow the steps to register EU-M-9r room regulator:
Select Registration option in EU-M-9r
Go to the menu of the external controller and select Registration (Menu > Registration)

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NOTE
It is possible to register up to four EU-L-9r external controllers to EU-M-9r regulator. In order for the registration
process to be successful, it is necessary to register the external controllers one by one. If the registration process is
activated in more than one external controller at a time, it will end up in failure.
7. TIME SETTINGS
This function is used to set current time and date which will be displayed in the main screen.
8. DISPLAY SETTINGS
This function enables the user to adjust the screen parameters to individual needs.
9. LANGUAGE SELECTION
This option is used to select the language version.
10. FITTER'S MENU
This menu is described in section VIII.
11. SERVICE MENU
In order to activate service options, it is necessary to enter a 4-digit code provided by TECH company.
12. SOFTWARE VERSION
When this option is selected, the display shows the logo of the CH boiler manufacturer and the controller software version.
VII. ZONES
This submenu enables the user to configure operation parameters for particular zones. When the pre-set temperature value
in a zone is reached, EU-L-9r controller labels the zone as sufficiently heated and the status remains unchanged until the
temperature drops below the pre-set temperature by hysteresis value. When the temperature in all the zones is sufficient,
the controller disables both the pump and the voltage-free contact.
The same happens in the cooling mode - until the temperature rises above the pre-set temperature plus the hysteresis value.
1. TYPE OF SENSOR
This function allows the user to select from an NTC wired sensor, an RS wired sensor and a wireless sensor.
2. PRE-SET TEMPERATURE
The pre-set temperature in a given zone depends on the settings of the selected operating mode in the zone. As a rule, the
temperature results from the currently selected weekly schedule; however, the ‘Pre-set temperature’function allows the
user to set a separate temperature value for a specific period of time or permanently. After it has been set, the display shows
a screen enabling the user to define the duration of this temperature. When the time is over, the pre-set temperature in a
given zone depends on the previously set mode. The pre-set temperature value together with the time left are displayed on
the main screen on an ongoing basis (see: description of the main screen).
NOTE
If the duration of a given pre-set temperature is set as CON, this temperature will apply for an indefinite period
of time.

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3. OPERATION MODE
In this submenu, the user can view, edit or set the operation mode in a given zone. It is also possible edit weekly schedules
here.
The user may set 6 weekly schedules in a given zone: 1 local schedule and 5 global schedules. The schedule temperature
settings are common for heating and cooling; the type of schedule selected in a given mode is saved separately.
Local schedule - it is a weekly schedule assigned to a given zone only. It may be edited freely
Global schedule 1-5 - these schedules have the same settings for all zones.
Constant temperature –this function enables the user to define a separate pre-set temperature that will apply in
the zone regardless of the time of the day.
With time limit –this function is used to configure the pre-set temperature which will apply for a pre-defined period
of time. When the time is over, the pre-set temperature in a given zone depends on the previously set mode
(schedule or constant without time limit).
4. USER SETTINGS
4.1. HOUSE HEATING
This function enables the user to activate/deactivate house heating.
4.2. HEATING
ON –this function enables the user to include/ exclude the zone in/from the heating algorithm.
Schedule settings –this function enables the user to choose the schedule which will apply in a zone (local schedule,
global schedule 1-5) during heating , if the zone operation is based on a schedule.
Constant temperature –this function enables the user to define a separate pre-set temperature that will apply in
the zone during heating, if the zone operation is based on a constant temperature.
4.3. COOLING
ON - this function enables the user to include/ exclude the zone in/from the cooling algorithm
Schedule settings –this function enables the user to choose the schedule which will apply in a zone (local schedule,
global schedule 1-5) during cooling , if the zone operation is based on a schedule.
Constant temperature –this function enables the user to define a separate pre-set temperature that will apply in
the zone during cooling, if the zone operation is based on a constant temperature.
Humidity protection–this function is used to protect the floor against dewfall (condensation). If the humidity in a
given zone is higher than ‘Max humidity’ value defined in the fitter’s menu, cooling will be disabled in this zone.
4.4. TEMPERATURE SETTINGS
This function enables the user to define pre-set temperatures for three operation modes (Comfort mode, Economical mode
and Holiday mode).

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5. FLOOR HEATING
5.1. REGISTRATION
Select ‘Registration’ in L-9r controller and press the communication button in the selected floor temperature sensor C-8f. If
the registration has been successful, the EU-L-9r display will show an appropriate message and the control light on C-8f sensor
will flash twice.
5.2. INFORMATION
After selecting this option, information about the operating mode, battery status, range and type of registered sensor appears
on the controller screen.
5.3. OPERATION MODE
Floor protection –This function serves to maintain the floor temperature below the maximum temperature value
in order to protect the system against overheating. When the floor temperature reaches the maximum temperature,
the zone heating is disabled.
Comfort profile –this function serves to maintain comfort floor temperature. The controller monitors the floor
temperature and disables the zone heating when zone temperature reaches the maximum temperature in order to
prevent overheating. When the floor temperature drops below the pre-set minimum temperature, the zone heating
will be enabled.
NOTE
The user may view current operation mode, floor temperature and the type of sensor in the information screen.
5.4. MINIMUM TEMPERATURE
This parameter is used to define the threshold temperature protecting against cooling down of the floor. If the floor
temperature drops below the pre-set minimum temperature, zone heating will be enabled.
NOTE
This function is available only when Comfort profile is selected as the operation mode.
5.5. MAXIMUM TEMPERATURE
Maximum floor temperature is a threshold value of floor temperature. If this value is exceeded, the contact will open (the
device is disabled) regardless of current room temperature.
5.6. HYSTERESIS
Hysteresis –floor temperature hysteresis defines tolerance for the maximum and minimum temperature. The settings range
is 0,1-5°C.
Example 1 –floor protection:
Maximum floor temperature: 33°C Hysteresis: 2°C
When the floor temperature reaches 33°C, the relay is disconnected. It will be connected again at the temperature of 31°C.