Tech Controllers EU-L-X WiFi User manual

EU-L-X WiFi

TABLE OF CONTENTS
I. Safety................................................................................................................................................................................3
II. System description ...........................................................................................................................................................4
III. How to install ...................................................................................................................................................................4
IV. First startup......................................................................................................................................................................9
V. Main screen description.................................................................................................................................................10
VI. Controller functions .......................................................................................................................................................12
1. Operation mode ...........................................................................................................................................................12
2. Zones ............................................................................................................................................................................12
3. Controller settings........................................................................................................................................................14
4. Fitter’s Menu ................................................................................................................................................................14
4.1. Zones ...................................................................................................................................................................14
4.2. Additional contacts..............................................................................................................................................18
4.3. Mixing valve.........................................................................................................................................................19
4.4. Internet module...................................................................................................................................................24
4.5. Manual mode.......................................................................................................................................................25
4.6. External sensor ....................................................................................................................................................25
4.7. heating stopping..................................................................................................................................................25
4.8. Potential-free contact..........................................................................................................................................26
4.9. Pump....................................................................................................................................................................26
4.10. Heating - cooling..................................................................................................................................................26
4.11. Anti-stop settings.................................................................................................................................................26
4.12. Maximum humidity .............................................................................................................................................26
4.13. Language..............................................................................................................................................................26
4.14. Heat pump ...........................................................................................................................................................26
4.15. Factory settings....................................................................................................................................................27
5. Service menu................................................................................................................................................................27
6. Factory settings ............................................................................................................................................................27
7. Software Version ..........................................................................................................................................................27
VII. Alarm list ........................................................................................................................................................................27
VIII. Software update.............................................................................................................................................................29
IX. Technical data ................................................................................................................................................................29
JG. 27.04.2022
The pictures and diagrams are for illustration purposes only.
The manufacturer reserves the right to introduce some changes.

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
put in a different place, make sure that the user’s manual is stored 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 should measure earthing resistance of the electric motors as well as the
insulation resistance of the cables.
•The regulator should not be operated by children.
WARNING
•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 products described in the manual may have been introduced subsequent to its completion on October 14th
2022. The manufacturer retains the right to introduce changes to the structure or colours. The illustrations may include
additional equipment. Print technology may result in differences in colours shown.
Care for the natural environment is our priority. Being aware of the fact that we manufacture
electronic devices obligates us to dispose of used elements and electronic equipment in a manner
which is safe for nature. As a result, the company has received a registry number assigned by the
Main Inspector of Environmental Protection. The symbol of a crossed out rubbish bin on a product
means that the product must not be thrown out to ordinary waste bins. By segregating waste
intended for recycling, we help protect the natural environment. It is the user's responsibility to
transfer waste electrical and electronic equipment to the selected collection point for recycling
of waste generated from electronic and electrical equipment.

II. SYSTEM DESCRIPTION
The EU-L-X WiFi controller is part of a heating/cooling control system that enables an expansion of the control of an existing
thermal installation by the introduction of heat zoning. The primary function is to maintain a preset temperature in each
zone. EU- L-X WiFi is a device that, together with all peripheral devices, such as room sensors, room regulators, floor sensors,
external sensor, window sensors, thermostatic actuators, form the entire integrated system.
Thanks to its extensive software, the EU-L-X WiFi controller can perform a number of functions:
•support for EU-R-12b, EU-R-12s and EU-F-12b cable regulators
•support for floor temperature sensors
•support for external sensors and weather controls
•support for wireless window sensors (up to 6 pcs per zone)
•possibility to control STT-868 or STT-869 wireless actuators (6 pcs per zone)
•possibility of operating thermostatic actuators
•possibility of operating a mixing valve –after connecting the EU-i-1, EU-i-1m valve module
•control of a heating or cooling device by means of a voltage-free contact
•one 230V output to pump
•possibility to set an individual operating schedule for every zone
•possibility of updating the software via USB port.
III. HOW TO INSTALL
The EU-L-X WiFi controller should only be installed by a properly qualified person.

WARNING
Danger of injury or death due to electric shock on live connections. Before working on the controller, disconnect
its power supply and secure it against accidental switching on.
CAUTION
Incorrect wiring may damage the controller.
An illustrative diagram showing how to connect and communicate with the remaining equipment:

Installation of the electrolytic capacitor
In order to reduce the phenomenon of temperature spikes read from the zone sensor, a 220uF/25V low impedance
electrolytic capacitor, connected in parallel with the sensor cable, should be installed. When installing the capacitor,
always pay particular attention to its polarity. The ground of the element marked with a white strip is screwed into the
right terminal of the sensor connector, as seen from the front of the controller, and depicted in attached images. The
second terminal of the capacitor is screwed into the terminal of the left connector. We found that this solution has
completely eliminated potential distortions. However, it is worth noting that the basic principle is to correctly install the
wires in order to avoid interference. The wiring should not be routed near sources of electromagnetic field, however, if
such a situation has already occurred, a filter in the form of a capacitor should be applied.

When connecting regulators to the first controller, terminate the operation (switch the jumper in the ON position) in the
controller and the last of the regulators.
When connecting regulators to a controller located in the middle of the transmission line, terminate (switch the jumper
to the ON position) in the first and last regulator.
Connection between the controller and the regulators

IV. FIRST STARTUP
In order for the controller to operate correctly, the following steps must be followed for the first start-up:
Step 1: Connect the EU-L-X WiFi assembly controller with all the devices it is supposed to control
To connect the wires, remove the cover of the controller and then connect the wiring –this should be done as described on
the connectors and the diagrams in the manual.
Step 2. Switch on the power supply, checking the operation of the connected devices
After connecting all devices, switch on the power supply of the controller.
Using the Manual Operation function (Menu → Fitter’s Menu → Manual Operation), check the operation of the individual
devices. Using the and buttons, select the device and press the MENU button –the device to be checked should turn
on. Check all the connected devices in this manner.
Step 3. Set the current time and date
To set the current date and time, select: Menu → Controller settings → Time settings.
CAUTION
Using the web module, the current time can be adjusted from the network automatically.
Step 4. Configure temperature sensors, room regulators
In order for the EU-L-X WiFi controller to support a given zone, it must receive information about the current temperature.
The simplest way is to use a wired or wireless temperature sensor (e.g. EU-C-7p, EU-C-mini, EU-CL-mini, EU-C-8r). However,
if you wish to be able to change the set temperature value directly from the zone, you can use room regulators, e.g. EU-
R-8b, EU-R-8z, EU-R-8b Plus or dedicated ones: EU-R-12b and EU-R-12s. To pair the sensor with the controller, select:
Menu → Fitter’s menu → Zones Zone… → Room sensor → Select sensor.
Step 5. Configure the remaining cooperating devices
The EU-L-X WiFi controller can also operate with the following devices:
- EU-i-1, EU-i-1m
- mixing valve module EU-i-1, EU-i-1m- additional contacts, e.g. EU-MW-1 (6 pcs per controller)
After switching on the built-in Internet module, the user has the option to control the installation via the Internet using
the emodul.pl application. For configuration details, refer to the manual of the respective module.
CAUTION
If the user wants to use these devices during operation, they must be connected and/or registered.

V. MAIN SCREEN DESCRIPTION
The control is carried out by means of buttons located under the display.
Controller display.
1. MENU button - enters the controller menu, confirming the settings.
2. button - used to browse the menu functions or decrease the value of the edited parameters. This button also
switches the operation parameters between the zones.
3. button - used to browse the menu functions or increase the value of the edited parameters. This button also
switches the operation parameters between the zones.
4. EXIT button - EXIT from the controller menu or cancel the settings or toggle the screen view (zones, zone).
1. Current day of the week
2. Outside temperature
3. Pump running
4. Activated voltage-free contact
Sample screens - ZONES
the zone is heated
the zone is cooled
1
2
3
5
4
1
2
5
3
4
6
7
8
9
10
11

5. Current time
6. Information about the operating mode/schedule in the respective zone
L
local schedule
CON
constant temperature
G-1….G-5
global schedule 1-5
02:08
time-limited
7. Signal strength and battery status of the room sensor information
8. Preset temperature in a given zone
9. Current floor temperature
10. Current temperature in a given zone
the zone is heated
the zone is cooled
11. Zone information. A visible digit means a connected room sensor that provides information about the current
temperature in the respective zone. If the zone is currently heating or cooling, depending on the mode, the digit
flashes. If an alarm occurs in a given zone, an exclamation mark will be displayed instead of a digit.
To view the current operating parameters of a specific zone, highlight its number using the buttons.
1. Outside temperature
2. Battery status
3. Current time
4. Current mode of operation of the displayed
zone
5. The preset temperature of the given zone
6. Current temperature of the given zone
7. Current floor temperature
8. Maximum floor temperature
9. Information on the number of registered
window sensors in the zone
10. Information about the number of registered
actuators in the zone
11. Icon of the currently displayed zone
12. Current humidity level in the given zone
13. Zone name
Sample Screen - ZONE
1
2
4
5
6
7
8
9
10
11
12
13
3

VI. CONTROLLER FUNCTIONS
1. OPERATION MODE
This function enables activation of the selected operating mode.
➢Normal mode –the preset temperature depends on the set schedule
➢Holiday mode –the set temperature depends on the settings of this mode
Menu → Fitter‘s menu → Zones → Zone… → Settings → Temperature settings > Holiday mode
➢Economy mode –the set temperature depends on the settings of this mode
Menu → Fitter‘s menu → Zones → Zone… → Settings → Temperature settings > Economy mode
➢Comfort mode –the set temperature depends on the settings of this mode
Menu → Fitter‘s menu → Zones → Zone… → Settings → Temperature settings > Comfort mode
CAUTION
•Changing the mode to holiday, economy and comfort will apply to all zones. It is only possible to edit the setpoint
temperature of the selected mode for a particular zone.
•In operation mode other than normal, it is not possible to change the set temperature from the room regulator
level.
2. ZONES
➢On
To display the zone as active on the screen, register a sensor in it (see: Fitter’s Menu). The function allows you to disable the
zone and hide the parameters from the main screen.
➢Set temperature
The set temperature in the zone results from the settings of a specific mode of operation in the zone, i.e. the weekly schedule.
However, it is possible to turn off the schedule and set a separate temperature and duration of this temperature. After this
time, the set temperature in the zone will depend on the previously set mode. On an ongoing basis, the set temperature
value, along with the time until the end of its validity, is displayed on the main screen.
CAUTION
In the event that the duration of a specific setpoint temperature is set to CON, this temperature will be valid for an
indefinite period (constant temperature).
➢Operation mode
The user has the ability to view and edit the operating mode settings for the zone.
•Local Schedule –Schedule settings that only apply to this zone
•Global Schedule 1-5 –These schedule settings apply to all zones, where they are active
•Constant temperature (CON) - this function allows you to set a separate set temperature value that will be valid in
a given zone permanently, regardless of the time of day
•With time limitation –this function allows you to set a separate temperature that will be valid only for a specific
period of time. After this time, the temperature will result from the previously applicable mode (schedule or
constant without time limit).

Menu → Zones → Zone… → Operating mode → Schedule… → Edit
1. Days on which the above settings apply
2. Temperature set outside the time intervals
3. Set temperatures for time intervals
4. Time intervals
To configure a schedule:
•Use the arrows to select the part of the week for which the set schedule will apply (1st part of the week or
2nd part of week).
•Use the MENU button to go to the set temperature settings that will be valid outside the time intervals - set it with
the arrows, confirm using the MENU button.
•Use the MENU button to go to the settings of the time intervals and the set temperature that will be valid for the
specified time interval, set it using the arrows, confirm with the MENU button.
•Then proceed to the editing of days that are to be assigned to 1st or 2nd part of the week - active days are
displayed in white. The settings are confirmed with the MENU button, the arrows navigate between each day.
After setting the schedule for all days of the week, press the EXIT button and select the Confirm option with the MENU button.
CAUTION
The user can set three different time intervals in a given schedule (with an accuracy of 15 minutes).
Schedule editing

3. CONTROLLER SETTINGS
➢Time settings - the current time and date can be automatically downloaded from the network if the Internet
module is connected and the automatic mode is enabled. It is also possible for the user to manually set the time
and date if the automatic mode does not operate correctly.
➢Screen settings - This function allows the user to customize the display.
➢Sound the buttons - this option is used to enable the sound that will accompany pressing the buttons.
4. FITTER’S MENU
The fitter’s menu is the most complex controller menu. Here, the user has a wide selection of functions that allow for
maximum use of the controller's capabilities.
4.1. ZONES
To activate a zone on the controller display, register/activate a sensor therein and then activate the zone.
4.1.1. ROOM SENSOR
The user can register/enable any type of sensor: NTC wired, RS or wireless.
➢Hysteresis - adds a tolerance for the room temperature in the range of 0.1 ÷ 5°C, at which there is additional
heating/cooling enabled.
Example:
The preset room temperature is 23°C
Hysteresis is 1°C
The room sensor will start to indicate room underheating after the temperature drops to 22°C.
➢Calibration - Room sensor calibration is carried out during assembly or after a longer period of use of the sensor if
the displayed room temperature deviates from the actual one. Adjustment range: from -10°C to +10°C with a step
of 0.1°C.
4.1.2. SET TEMPERATURE
The function is described in the Menu → Zones section.
4.1.3. OPERATION MODE
The function is described in the Menu → Zones section.
4.1.4. OUTPUTS CONFIGURATION
This option controls the outputs: floor pump, no-voltage contact and outputs of sensors 1-8 (NTC to control the temperature
in the zone or floor sensor to control the temperature of the floor). Sensor outputs 1-8 are assigned to zones 1-8, respectively.
The type of sensor selected here will appear by default in the option: Menu → Fitter’s menu → Zones → Zones... → Room
sensor → Select sensor (for temperature sensor) and Menu → Fitter’s Menu → Zones → Zones… → Floor heating → Floor
sensor → Select sensor (for floor sensor).
The outputs of both sensors are used to register the zone by wire.
The function also allows switching off the pump and the contact in a given zone. Such a zone, despite the need for heating,
will not participate in the control.

4.1.5. SETTINGS
➢Weather control - the option to turn the weather control on/off.
CAUTION
Weather control works only if in the Menu → Fitter’s menu → External sensor,the Weather control option was
checked.
➢Heating –the function enables/disables the heating function. There is also a selection of a schedule that will be
valid for the zone during heating and for editing of a separate constant temperature.
➢Cooling - this function enables/disables the cooling function. There is also a selection of a schedule that will be
valid in the zone during cooling and editing of a separate constant temperature.
➢Temperature settings –the function is used to set the temperature for the three operating modes (Holiday
mode, Economy mode, Comfort mode).
➢Optimum start
Optimum start is an intelligent heating control system. It enables continuous monitoring of the heating system and the use
of this information to automatically activate the heating in advance of the time required to reach the set temperatures.
This system does not require any involvement on the part of the user and precisely responds to any changes that affect the
efficiency of the heating system. If, for example, there are changes made to the installation and the house warms up faster,
the optimum start system will identify the change at the next programmed temperature change resulting from the schedule,
and in the subsequent cycle it will delay the activation of the heating until the last moment, reducing the time required to
reach the preset temperature.
A–programmed moment of changing the economic temperature to the comfortable one
Activating this function will ensure that when the programmed change of the set temperature resulting from
the schedule occurs, the current temperature in the room will be close to the desired value.
CAUTION
The optimum start function only works in the heating mode.
Room temperature –OPTIMUM START function OFF
Room temperature –OPTIMUM START function ON

4.1.6. ACTUATORS
➢Settings
•SIGMA - the function enables seamless control of the electric actuator. The user can set the minimum and
maximum openings of the valve –this means that the degree of opening and closing of the valve will never
exceed these values. In addition, the user adjusts the Range parameter, which determines at which room
temperature the valve will start to close and open.
CAUTION
The Sigma function is only available for STT-868 or STT-869 actuators.
Example:
Zone preset temperature: 23˚C
Minimum opening: 30%
Maximum opening: 90%
Range: 5˚C
Hysteresis: 2˚C
With the above settings, the actuator will start to close once the temperature in the zone reaches 18°C (preset temperature
minus the range value). The minimum opening will occur when the zone temperature reaches the set point.
Once the set point is reached, the temperature in the zone will start to drop. When it reaches 21°C (set temperature minus
hysteresis value), the actuator will start to open reaching maximum opening when the temperature in the zone reaches 18°C.
•Protection - When this function is selected, the controller checks the temperature. If the set temperature
is exceeded by the number of degrees in the Range parameter, then all actuators in a given zone will be
closed (0% opening). This function only works with the SIGMA function enabled.
➢Actuator 1-6 - option enables the user to register a wireless actuator. To do this, select Register and briefly press
the communication button on the actuator. After successful registration, an additional information function
appears, where the user can view the actuator parameters, e.g. battery status, range, etc. It is also possible to delete
one or all actuators at the same time.

4.1.7. WINDOW SENSORS
➢Settings
•On - the function enables the activation of window sensors in a given zone (window sensor registration
required).
•Delay Time - This function allows you to set the delay time. After the preset delay time, the main controller
responds to the opening of the window and blocks heating or cooling in the respective zone.
Example: The delay time is set to 10 minutes. Once the window is opened, the sensor sends information to the main
controller about opening the window. The sensor confirms the current state of the window from time to time. If
after the delay time (10 minutes) the window remains open, the main controller will close the actuators and turn off
the overheating of the zone.
CAUTION
If the delay time is set to 0, then the signal to the actuators to close will be transmitted immediately.
➢Wireless –option to register window sensors (1-6 pcs per zone). To do this, select Register and briefly press the
communication button on the sensor. After successful registration, an additional Information function appears,
where the user can view the sensor parameters, e.g. battery status, range, etc. It is also possible to delete a given
sensor or all at the same time.
4.1.8. FLOOR HEATING
➢Floor Sensor
•Sensor Selection - This function is used to enable (wired) or register (wireless) floor sensors. In the case of a
wireless sensor, register it by additionally pressing the communication button on the sensor.
•Hysteresis - adds a tolerance for the room temperature in the range of 0.1 ÷ 5°C, at which the additional
heating/cooling is enabled.
Example:
The maximum floor temperature is 45°C
Hysteresis is 2°C
The controller will deactivate the contact after exceeding 45°C at the floor sensor. If the temperature starts to drop,
the contact will be switched back on again after the temperature at the floor sensor drops to 43 C (unless the room
temperature has been reached).
•Calibration - Floor sensor calibration is carried out during assembly or after a longer period of use of the sensor
if the displayed floor temperature deviates from the actual one. Adjustment range: from -10°C to +10°C with a
step of 0.1°C.
CAUTION
The floor sensor is not used during the cooling mode.

➢Operation mode
•Off –Selecting this option disables the floor heating mode, i.e. Floor Protection nor Comfort Mode are not active.
•Floor protection –This function is used to keep the floor temperature below the set maximum temperature to
protect the system from overheating. When the temperature rises to the set maximum temperature, the reheating
of the zone will be switched off.
•Comfort mode –This function is used to maintain a comfortable floor temperature, i.e. the controller will monitor
the current temperature. When the temperature rises to the set maximum temperature, the zone heating will be
switched off to protect the system from overheating. When the floor temperature drops below the set minimum
temperature, the zone reheat will be switched back on.
➢Min. temperature
The function is used to set the minimum temperature to protect the floor from cooling down. When the floor
temperature drops below the set minimum temperature, the zone reheat will be switched back on. This function is only
available when you select Comfort Mode.
➢Max. temperature
The maximum floor temperature is the floor temperature threshold above which the controller will switch off the
heating regardless of the current room temperature. This function protects the installation from overheating.
4.2. ADDITIONAL CONTACTS
The function allows you to handle additional contacts. First of all, it is necessary to register such a contact (1-6 pcs.). To do
this, select the Registration option and briefly press the communication button on the device, e.g. MW-1.
After registering and switching on the device, the following functions will appear:
➢Information - information about the status, operating mode and contact range is displayed on the controller screen
➢On - option to enable/disable contact operation
➢Operating mode –user available option to activate the selected contact operation mode
➢Time mode –the function allows setting the contact operation time for a specific time
The user can change the contact status by selecting/deselecting the Active option and then setting the Duration of
this mode
➢Constant mode –the function allows setting the contact to operate permanently. It is possible to change the contact
status by selecting/deselecting the Active option
➢Relays –the contact works according to the zones to which it has been assigned
➢Dehumidification –if the Maximum Humidity is exceeded in a given zone, this option allows you to start the air
dryer
➢Schedule settings –the function allows you to set a separate contact operation schedule (regardless of the status
of the controller zones).
CAUTION
The Dehumidification function works only in the Cooling operation mode.
➢Delete –this option is used to delete the selected contact.

4.3. MIXING VALVE
The EU-L-X WiFi controller can operate an additional valve using a valve module (e.g. i-1m). This valve has RS communication,
but it is necessary to carry out the registration process, which will require you to quote the module number located in the
rear of its housing, or in the software information screen). After correct registration, it is possible to set individual parameters
of the Additional valve.
➢Information - the function allows you to view the valve parameters status.
➢Register - After entering the code on the back of the valve or in the Menu → Software Information, you can register
the valve with the main controller.
➢Manual mode –the user has the ability to manually stop the valve operation, open/close the valve and switch the
pump on and off in order to control the correct operation of the devices.
➢Version - This function displays the valve software version number. This information is necessary when contacting
the service.
➢Valve removal - This function is used to completely delete the valve. The function is used, for example, when
removing the valve or replacing the module (it is then necessary to re-register the new module).
➢On –option to enable or disable the valve temporarily.
➢Valve set temperature –this parameter allows you to set the valve set temperature.
➢Summer mode –turning on the summer mode closes the valve to avoid unnecessary heating of the house. If the
boiler temperature is too high (enabled boiler protection is required), the valve will be opened in emergency mode.
This mode is not active in Return protection mode.
➢Calibration - This function can be used to calibrate the built-in valve, e.g. after prolonged use. During calibration,
the valve is set to a safe position, i.e. for the CH valve and the Return protection type to reach its fully open position,
and for floor valve and the Cooling type, to fully return to its closed position.
➢Single stroke - This is the maximum single stroke (opening or closing) that the valve can perform during single
temperature sampling. If the temperature is close to the set point, this stroke is calculated on the basis of the
Proportionality coefficient parameter. The smaller the unit stroke, the more precisely the set temperature can be
reached, but the set temperature is reached over a longer period of time.
➢Minimum opening - A parameter that specifies the smallest valve opening in percent. This parameter enables the
valve to be left slightly open to maintain the minimum flow.
CAUTION
If we set the minimum opening of the valve to 0% (complete closing), the pump will not operate when the valve
is closed.
➢Opening time - A parameter that specifies the time it takes the valve actuator to open the valve from 0% to 100%.
This time should be selected to match that of the valve actuator (as indicated on its nameplate).
➢Measurement pause - This parameter determines the frequency of measuring (control) of water temperature
downstream of the CH installation valve. If the sensor indicates a temperature change (deviation from the set point),
then the solenoid valve will open or close by the preset value to return to the preset temperature.
➢Valve Hysteresis - This option is used to set the valve setpoint temperature hysteresis. This is the difference
between the preset temperature and the temperature at which the valve will start to close or open.

Example: Valve preset temperature: 50°C
Hysteresis: 2°C
Valve stop: 50°C
Valve opening: 48°C
Valve closing: 52°C
When the set temperature is 50°C and the hysteresis is 2°C, the valve will stop in one position when the temperature
reaches 50°C, when the temperature drops to 48°C, it will start to open and when it reaches 52°C, the valve will start
to close in order to lower the temperature.
➢Valve type –This option enables the user to select the following valve types:
•CH valve - set when we wish to control the temperature in the CH circuit using the valve sensor. The valve sensor
shall be placed downstream of the mixing valve on the supply pipe.
•Floor valve - set when we wish to adjust the temperature on the underfloor heating circuit. The floor type protects
the floor system against excessive temperatures. If the type of valve is set as CH and it is connected to the floor
system, it may lead to damage to the floor system.
•Return protection - set when we wish to adjust the temperature at the return of our installation using the return
sensor. Only return and boiler sensors are active in this type of valve, and the valve sensor is not connected to the
controller. In this configuration, the valve protects the boiler's return from cold temperature as a priority, and if
the Boiler protection function is selected, it also protects the boiler from overheating. If the valve is closed (0%
open), the water flows only in a short circuit, while the full opening of the valve (100%) means that the short circuit
is closed and the water flows through the entire central heating system.
CAUTION
If the Boiler Protection is off, the CH temperature will not affect the opening of the valve. In
extreme cases, the boiler may overheat, so it is recommended to configure the boiler protection
settings.
For this type of valve, refer to the Return Protection Screen.
•Cooling - set when we want to adjust the temperature of the cooling system (the valve opens when the set
temperature is lower than the temperature of the valve sensor). Boiler protection and Return protection do not
work in this type of valve. This type of valve operates despite the active Summer mode, while the pump operates
using the shutdown threshold. In addition, this type of valve has a separate heating curve incorporated as a
function of the Weather sensor.
➢Opening in CH calibration –When this function is enabled, the valve starts its calibration from the opening phase.
This function is only available when the valve type is set as a CH Valve.
➢Floor heating - summer –This function is only visible after selecting the valve type as Floor Valve. When this function
is enabled, the floor valve will operate in the Summer Mode.
➢Weather control –For the weather function to be active, place the external sensor in a not insolated location, one
that is not exposed to atmospheric influences. After installing and connecting the sensor, switch on the Weather
control function in the controller menu.
CAUTION
This setting is not available in the Cooling and Return Protection Modes.