Tech Controllers EU-800 PID User manual

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EU-800 PID

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TABLE OF CONTENTS
1Safety .......................................................................................................................................................................................... 6
2Description of the device ............................................................................................................................................................ 7
3How to install the controller....................................................................................................................................................... 7
4How to use the controller ........................................................................................................................................................... 9
4.1 Principle of operation...................................................................................................................................................... 10
5Controller functions –main menu............................................................................................................................................ 10
5.1 Fire-up/ extinguishing ..................................................................................................................................................... 11
5.2 Screen view ..................................................................................................................................................................... 11
5.3 Temperature settings ...................................................................................................................................................... 11
5.3.1 Pre-set ch temperature............................................................................................................................................... 11
5.3.2 Pre-set dhw temperature............................................................................................................................................ 11
5.4 Operation settings*......................................................................................................................................................... 11
5.4.1 Blow force ................................................................................................................................................................... 11
5.4.2 Fan in sustain mode .................................................................................................................................................... 11
5.4.3 Pause in sustain mode ................................................................................................................................................ 12
5.4.4 Fan speed in sustain mode.......................................................................................................................................... 12
5.5 Manual mode .................................................................................................................................................................. 12
5.6 Pump operation modes................................................................................................................................................... 12
5.6.1 House heating ............................................................................................................................................................. 12
5.6.2 Water tank priority...................................................................................................................................................... 12
5.6.3 Parallel pumps............................................................................................................................................................. 12
5.6.4 Summer mode............................................................................................................................................................. 13
5.7 Time settings ................................................................................................................................................................... 13
5.8 Date settings.................................................................................................................................................................... 13
5.9 Weekly control ................................................................................................................................................................ 13
5.10 Fitter’s menu ................................................................................................................................................................... 14
5.11 Service menu................................................................................................................................................................... 14
5.12 Language ......................................................................................................................................................................... 14
5.13 Factory settings ............................................................................................................................................................... 14
5.14 Software version.............................................................................................................................................................. 14
6Controller functions –fitter’s menu ......................................................................................................................................... 15
6.1 Valve settings .................................................................................................................................................................. 16
6.1.1 valve 1,2 ...................................................................................................................................................................... 16
6.2 Room reg. temp. lower.................................................................................................................................................... 20
6.3 GSM module.................................................................................................................................................................... 21
6.4 Ethernet module ............................................................................................................................................................. 21
6.5 Room regulator ............................................................................................................................................................... 22
6.5.1 CH pump control ......................................................................................................................................................... 23

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6.5.2 CH boiler control ......................................................................................................................................................... 23
6.6 Operation algorithm........................................................................................................................................................ 23
6.6.1 Standard...................................................................................................................................................................... 23
6.6.2 PID............................................................................................................................................................................... 23
6.7 Buffer parameters ........................................................................................................................................................... 24
6.7.1 Buffer .......................................................................................................................................................................... 25
6.7.2 Pre-set temperature top ............................................................................................................................................. 25
6.7.3 Pre-set temperature bottom ...................................................................................................................................... 25
6.7.4 DHW function.............................................................................................................................................................. 25
6.8 Pump activation temperature ......................................................................................................................................... 25
6.9 DHW hysteresis ............................................................................................................................................................... 25
6.10 Additional heat source .................................................................................................................................................... 26
6.11 Additional pump.............................................................................................................................................................. 26
6.11.1 CH pump ................................................................................................................................................................. 26
6.11.2 CH boiler protection ............................................................................................................................................... 26
6.11.3 Circulating pump..................................................................................................................................................... 27
6.11.4 Short circuit pump .................................................................................................................................................. 27
6.12 Pulser knob sensitivity..................................................................................................................................................... 27
6.13 External sensor calibration.............................................................................................................................................. 27
6.14 Water tank disinfection................................................................................................................................................... 27
6.15 Pump anti-stop................................................................................................................................................................ 28
6.16 Anti-freeze temperature ................................................................................................................................................. 28
6.17 PID supervision**............................................................................................................................................................ 28
6.18 CH boiler hysteresis*....................................................................................................................................................... 28
6.19 Screen settings ................................................................................................................................................................ 28
6.20 Display contrast............................................................................................................................................................... 28
6.21 Factory settings ............................................................................................................................................................... 28
7Protections................................................................................................................................................................................ 28
7.1 Temperature alarm ......................................................................................................................................................... 29
7.2 Thermal protection.......................................................................................................................................................... 29
7.3 Automatic sensor control................................................................................................................................................ 29
7.4 Protection against boiling of water in the ch boiler ........................................................................................................ 29
7.5 Temperature protection.................................................................................................................................................. 29
7.6 Fuse ................................................................................................................................................................................. 29
8Technical data ........................................................................................................................................................................... 30
PS, 19.08.2021
ALL PHOTOS IN THIS DOCUMENT ARE EXAMPLES AND MAY DIFFER FROM THE ACTUAL PRODUCT.

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1SAFETY
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 controller damage.
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 or sold,
make sure that the user 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
•A live electrical device! 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 is not intended to be operated by children.
WARNING
•The device may be damaged if struck by a lightning. During a thunderstorm, disconnect it from the power
supply by taking the plug out of the power socket.
•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 19.08.2021. The
manufacturer retains the right to introduce changes to the design. The illustrations may include additional equipment. Print
technology may result in differences in the 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 waste 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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2DESCRIPTION OF THE DEVICE
The EU-800 PID controller is intended for wood gasification CH boilers equipped with an exhaust fan. Due to advanced software,
the controller fulfils a range of functions:
•control of fan
•control of central heating pump - CH
•control of domestic hot water pump - DHW
•control of the mixing valve actuator
•weather-based control
•weekly control
•compatible with a traditional (two-state) or RS room regulator
•possibility of connecting ST-65 GSM module and ST-505 internet module
•possibility of connecting two additional valve-controlling modules (e.g. i-1)
3HOW TO INSTALL THE CONTROLLER
The controller should be installed by a qualified person.
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.
NOTE
Incorrect connection of wires may lead to controller damage.

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4HOW TO USE THE CONTROLLER
During standard operation of the controller, graphic display shows the main page. Depending on the operation mode, a
corresponding main screen is displayed.
By pressing pulser knob the user enters the first level menu. The display shows the first options of the menu. In order to move
on to the next option, twist the pulser knob. Press the knob to select an option. Follow a similar procedure when adjusting
parameters. In order for the changes to be saved, use the pulser knob to select CONFIRM. In order not to introduce any changes,
use the pulser knob to select CANCEL. In order to exit, press EXIT button.
1. Language selection
2. Icons indicating active devices - e.g. fan, pump, valve
3. Left parameter panel: current CH temperature, pre-set temperature
4. Current operation mode of the controller
5. Time
6. Right parameter panel: fan speed
7. BACK button –press this button to return to the previous level
8. Pulser knob –press this button to enter the main menu and confirm new settings
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4.1 PRINCIPLE OF OPERATION
The EU-800 PID temperature regulator is intended for wood gasification CH boilers. It controls water circulation pump, DHW
pump and additional pump. It may also cooperate with 2 three- or four-way valves, a room regulator, GSM module and Ethernet
module.
NOTE
The controller settings should be customized to suit individual user’s needs, depending on the type of fuel and CH boiler
used. TECH does not accept responsibility for incorrect settings.
In the event of voltage failure, the thermoregulator stops working. After the power supply has been re-established, the
operation mode is restored according to the previously set parameters (owing to the built-in memory). The thermoregulator
parameters remain saved even on voltage failure.
5CONTROLLER FUNCTIONS –MAIN MENU
* Parameter available when PID algorithm is disabled.
MAIN
MENU
Fire-up/ Extinguishing
Screen view
Temperature settings
Operation settings*
Manual mode
Pump operation modes
Time settings
Date settings
Weekly control
Fitter's menu
Servis menu
Language
Factory settings
Software version

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5.1 FIRE-UP/EXTINGUISHING
This function enables the user to easily fire up the CH boiler. After the fire is initiated, the user activates automatic fire-up
function. Owing to optimum parameters the CH boiler smoothly switches to operation mode with the use of the PID function.
When the CH boiler enters the fire-up mode, this option changes to Extinguishing.
5.2 SCREEN VIEW
This option enables the user to select one of the following screen views:
•CH screen (current operation mode of the CH boiler is displayed)
•Valve 1 (the operation parameters of valve 1 are displayed)
•Valve 2 (the operation parameters of valve 2 are displayed)
•Service screen (this screen view is not available for users; it is intended only for the device manufacturer)
NOTE
For the valve parameter screens to be available, the valves must be installed and configured by a fitter beforehand.
5.3 TEMPERATURE SETTINGS
5.3.1 PRE-SET CH TEMPERATURE
This option is used to define the pre-set CH boiler temperature. The setting range is 40°C-80°C. The pre-set temperature may
also be adjusted in the main screen view by twisting the pulser knob.
5.3.2 PRE-SET DHW TEMPERATURE
This option is used to define the pre-set temperature of domestic hot water. The setting range is 35°C-60°C.
5.4 OPERATION SETTINGS*
When the PID function is disabled, the controller functions as an ordinary two-state controller and additional functions will
appear in the menu.
MAIN
MENU
OPERATION
SETTINGS
Blow force
Fan in sustain mode
Pause in sustain mode
Fan speed in sustain mode
5.4.1 BLOW FORCE
This function controls the speed of the fan. The adjustment range is from 1 to 100% (it can be assumed that these are the fan's
gears). The higher the gear, the faster the fan works (1% is the minimum fan speed and 100% is the maximum fan speed).
5.4.2 FAN IN SUSTAIN MODE
This option is used to configure the operation and pause time of the fan in sustain mode.

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5.4.3 PAUSE IN SUSTAIN MODE
This option is used to configure the pause time of the fan in sustain mode.
NOTE
Incorrect settings may lead to constant temperature increase! Pause in sustain mode should not be too short.
5.4.4 FAN SPEED IN SUSTAIN MODE
This option is used to adjust the fan speed (blow force) in sustain mode.
5.5 MANUAL MODE
For the user's convenience, the regulator offers the Manual mode module. In this function, each device (fan, CH pump, DHW
pump, additional pump 1, additional contact) is switched on and off independently of the others.
Press the pulser knob to enable a given device. The device remains active until the pulser knob is pressed again.
Additionally, blow force function enables the user to set any speed of the fan in manual mode.
5.6 PUMP OPERATION MODES
This function enables the user to choose one of the following operation modes of the CH boiler.
MAIN
MENU
OPERATION
MODES
House heating
Water tank priority
Parallel pumps
Summer mode
5.6.1 HOUSE HEATING
When this function is selected, only the house is heated. CH pump is activated when the temperature is above the CH pump
activation threshold. Below this temperature value (minus hysteresis) the pump is disabled.
5.6.2 WATER TANK PRIORITY
In this mode, DHW pump operates until the pre-set water tank temperature is reached (the valves close to the maximum and
the valve pumps are switched off). After the pre-set water tank temperature has been reached, the pump is disabled and the
controller activates the CH pump and the mixing valves. When the water tank temperature drops below the pre-set value minus
hysteresis, DHW pump is enabled again and the valves are disabled.
NOTE
If the water tank temperature is higher than the CH boiler temperature, the pump will not be activated in order not to
cool down the water in DHW tank.
5.6.3 PARALLEL PUMPS
In this mode, the CH pump operates above the pump activation threshold. DHW pump is activated at the same time in order to
heat the water tank. Once the pre-set DHW temperature has been reached, DHW pump is disabled. It is enabled again when the
temperature drops by DHW hysteresis value.
NOTE
If current CH boiler temperature is lower than current water tank temperature, DHW pump will not be activated to
prevent the water in the tank from cooling down.

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5.6.4 SUMMER MODE
In this mode, only DHW pump is active (enabled when the DHW pump activation threshold is reached) and the CH valves are
closed in order not to heat the house unnecessarily. If the CH boiler temperature is too high, the valve will open in an emergency
procedure.
5.7 TIME SETTINGS
This option is used to set current time.
5.8 DATE SETTINGS
This option is used to set current date.
5.9 WEEKLY CONTROL
This function enables the user to program daily changes of the pre-set CH boiler temperature (CH boiler weekly control
submenu) for particular time and day of the week.
NOTE
To ensure that this function works properly, it is necessary to set current time and date.
In order to activate the weekly control function, select Mode 1 or Mode 2. Advanced settings of these modes are available
further in the submenu: Set mode 1 and Set mode 2.
Once a given mode has been selected, the main screen displays the value of current temperature deviation (below the pre-set
CH temperature, alternately with Pre-set). It also indicates that the weekly control function is active.
How to change weekly control settings:
The EU-800 PID regulator offers two ways of configuring weekly control:
MODE 1 –the user sets the temperature deviations for each day of the week separately;
MODE 2 –the user sets the temperature deviations for all working days (Monday-Friday) and for the weekend (Saturday-
Sunday) separately.
How to configure mode 1:
To program mode 1, select Set mode 1 - the display shows a screen with individual days of the week.
After selecting the day of the week to be edited, the editing screen appears: the current deviation setting is displayed in the
upper line, and the time period in the lower line. Turn the pulser knob to move to the next time period. To edit the setting, pre
the pulser knob and select Change.
In order to copy the settings to the following hours, use the pulser knob and select Copy.
Example
Monday
pre-set: 3 00, temp -100C (weekly control setting: –100C)
pre-set: 4 00, temp -100C (weekly control setting: –100C)
pre-set: 5 00, temp -100C (weekly control setting: –100C)
If the pre-set CH boiler temperature is 60°C, on Mondays between 300 and 600 the CH boiler temperature will decrease by 10°C to reach 50°C.

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How to configure mode 2:
In order to configure mode 2, select Set mode 2 - the display will show a screen with two day groups: Monday - Friday and
Saturday-Sunday. Select the group to be edited and follow the same steps as in mode 1
Example:
Monday-Friday
pre-set: 300 , temp -100C (weekly control setting: –100C)
pre-set: 400 , temp -100C (weekly control setting: -100C)
pre-set: 5 00 , temp -100C (weekly control setting: –100C)
Saturday - Sunday
pre-set: 16 00 , temp 50C (weekly control setting: +50C)
pre-set: 17 00 , temp 50C (weekly control setting: +50C)
pre-set: 18 00 , temp 50C (weekly control setting +50C)
In this case, if the pre-set CH boiler temperature is 600C, then from 300 to 600 on each day of the week, from Monday to Friday,
the pre-set boiler temperature will drop by 100C to reach 500C. During the weekend (Saturday, Sunday) from 16 00 to 19 00 , the
pre-set boiler temperature will increase by 50C to reach 650C.
5.10 FITTER’S MENU
Fitter’s menu is intended to be accessed by a qualified person. It includes additional controller functions. Detailed parameters
available in this menu are described in further part of this manual.
5.11 SERVICE MENU
In order to access service settings of the EU-800 PID controller, it is necessary to enter a 4-digit code provided by TECH.
5.12 LANGUAGE
This option is used to select the controller language version. It is also possible to change the language using the button with a
flag.
5.13 FACTORY SETTINGS
The controller is pre-configured for operation. However, the settings should be customized to user's needs. Return to factory
settings is possible at any time. When the factory settings option is activated, all customized settings of the CH boiler (saved in
user's menu) are lost and replaced with factory settings. Then, the parameters may be customized anew.
5.14 SOFTWARE VERSION
This function enables the user to view the software version of the controller. Such information is necessary when contacting the
service staff.

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6CONTROLLER FUNCTIONS –FITTER’S MENU
Fitter’s menu is intended to be accessed by a qualified person. It includes additional controller functions such as CH boiler
parameters, additional valves, additional pumps as well as advanced settings of basic functions.
* Option available only when PID function is disabled.
** Option available only when PID function is active.
FITTER'S
MENU
Valve settings
Room regulator temperature lower
GSM module
Ethernet module
Room regulator
Operation algorithm
Buffer parameters
Pump activation temperature
DHW hysteresis
Additional heat source
Additional pump
Pulser knob sensitivity
External sensor calibration
Water tank disinfection
Pump anti-stop
Anti-freeze temperature
PID supervision**
CH boiler hysteresis*
Screen settings
Display contrast
Factory settings

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6.1 VALVE SETTINGS
The EU-800 PID controller has a built-in module controlling the mixing valve. It is possible to connect two additional valve-
controlling modules. There is a range of parameters allowing the user to adjust the valve operation to the individual needs. Once
a valve has been enabled, the display shows an additional menu with valve parameters.
FITTER’S
MENU
VALVE
SETTINGS
Register valve 1
Register valve 2
6.1.1 VALVE 1,2
Valve
settings
Valve 1,2*
Valve status
Pre-set temperature
Opening time
Valve type
Room regulator
Weather-based control
Valve pump
Return protection
Single stroke
Minimum opening
Proportionality coefficient
Calibration
Additional sensors
Temperature control
Version
Valve removal
Factory settings
* Valve 1,2 menu is available only after the module has been registered
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6.1.1.1 VALVE STATUS
With this option the user may enable or disable the valve.
6.1.1.2 PRE-SET TEMPERATURE
This parameter defines the desired temperature which the valve should maintain. During proper operation, the temperature of
water downstream of the valve approaches the pre-set value.

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6.1.1.3 OPENING TIME
This parameter defines the time needed for the valve to open from 0% to 100% position. This value should be set in accordance
with the specification given on the rating plate of the valve actuator.
6.1.1.4 VALVE TYPE
This option enables the user to choose the type of valve to be controlled:
•CH - select if you want to control the temperature of the CH circuit with the use of valve sensor. The valve sensor
should be installed downstream of the mixing valve on the supply pipe.
•FLOOR - select if you want to control the temperature of the underfloor heating circuit. It protects the underfloor
heating system against dangerous temperature. If the user selects CH as the valve type and connects it to the
underfloor heating system, the fragile floor installation may be damaged.
6.1.1.5 ROOM REGULATOR
This submenu is used to select and configure the parameters of the room regulator which is to control the valve.
VALVE 1,2
ROOM
REGULATOR
Room regulator
Room reg. temp. lower
Change of pre-set temperature
Room temperature difference
6.1.1.5.1 Room regulator
Control without room regulator–when this option is active, the room regulator does not influence the valve operation.
•Control without room regulator–when this option is active, the room regulator does not influence the valve operation.
•Standard regulator –this option should be selected if the valve will be controlled by a two-state room regulator
(without RS communication).
•TECH RS regulator –select this option if you connect a room regulator with RS communication. Such a regulator
enables the user to view current CH boiler parameters and change certain settings e.g. pre-set CH boiler temperature or
pre-set DHW temperature.
•RS proportional regulator –activating this room regulator enables the user to monitor current temperature of CH
boiler, water tank and the valves. The regulator should be connected to the RS port of the controller. When this type of
room regulator is selected, the valve is controlled according to Change of pre-set valve temp. and Room temperature
difference parameters.
6.1.1.5.2 Room reg. temp. lower
NOTE
This parameter concerns Standard regulator and TECH RS regulator functions.
The user defines the temperature value by which the pre-set CH boiler temperature will be reduced when the pre-set room
regulator temperature is reached.
Temperature reduction will not be lower than the minimum pre-set CH temperature.

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Example:
Pre-set CH boiler temperature
55°C
Room reg. temp. lower
15°C
Minimum pre-set CH boiler temperature
45°C
Pre-set CH boiler temperature after pre-set room temperature has
been reached
45°C
Once the pre-set flat temperature has been reached (signalised by the room regulator), the pre-set CH boiler
temperature will be reduced to 45°C, which is only by 10°C although the Room reg. temp. lower parameter is set
to 15°C.
6.1.1.5.3 Change of pre-set temperature
NOTE
This parameter concerns the RS proportional regulator function.
This setting determines by how many degrees the valve temperature is to increase or decrease with a single unit change in room
temperature (see: Room temperature difference) This function is active only with TECH room regulator and it is closely related to
the Room temperature difference parameter.
Example:
SETTINGS:
Room temperature difference
0,5°C
Change of pre-set valve temperature
1°C
Pre-set valve temperature
40°C
Pre-set temperature of room regulator
23°C
Case 1:
If the room temperature rises to 23,5ºC ( 0,5ºC above the pre-set room temperature), the valve closes until 39ºC is reached ( 1ºC
change).
Case 2:
If the room temperature drops to 22ºC (1ºC below the pre-set room temperature), the valve opens until 42ºC is reached (2ºC
change - because every 0,5°C of room temperature difference, the pre-set valve temperature changes by 1°C ).
6.1.1.5.4 Room temperature difference
NOTE
This parameter concerns the TECH proportional regulator function.
This setting defines the single unit change in the current room temperature (with the accuracy of 0.1°C) at which a predefined
change in the pre-set temperature of the valve will be introduced.

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6.1.1.6 WEATHER-BASED CONTROL
VALVE 1,2
WEATHER-
BASED
CONTROL
ON/OFF
Heating curve
For the function of weather control to be active, the external sensor mustn't be exposed to sunlight or influenced by weather
conditions. After it has been installed and connected, weather-based control function needs to be activated in the controller
menu.
This setting is not available in the cooling mode or in the return protection mode.
6.1.1.6.1 Heating curve
Heating curve –a curve according to which the pre-set controller
temperature is determined, on the basis of outside temperature. In order
for the valve to operate properly, the user defines the pre-set
temperature value (downstream of the valve) for respective values of
outside temperatures -20°C, -10°C, 0°C and 10°C.
6.1.1.7 VALVE PUMP
VALVE 1,2
VALVE
PUMP
Valve pump
Valve activation
6.1.1.7.1 Valve pump
This option enables the user to select the pump operation mode:
•Always ON –the pump operates all the time, regardless of temperatures.
•Always OFF –the pump is switched off permanently and the regulator controls only the valve operation.
•ON above threshold –the pump is activated above the switch-on temperature. If the pump is to be activated above the
threshold, the user should also define the threshold pump switch-on temperature. The controller uses the readings from CH
temperature sensor.
6.1.1.7.2 Pump activation
This option concerns the pump activated above threshold. The valve pump will be activated when the CH boiler sensor reaches
the pump switch-on temperature.
6.1.1.8 RETURN PROTECTION
This function allows setting up CH boiler protection against too cool water returning from the main circulation, which could
cause low-temperature boiler corrosion. The return protection involves closing the valve when the temperature is too low, until
the short circulation of the boiler reaches the appropriate temperature.

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6.1.1.9 SINGLE STROKE
This is a maximum single stroke (opening or closing) that the valve may make during one temperature sampling. If the
temperature is close to the pre-set value, the stroke is calculated on the basis of the proportionality coefficient parameter value.
The smaller the single stroke, the more precisely the set temperature can be achieved. However, it takes longer for the set
temperature to be reached.
6.1.1.10 MINIMUM OPENING
The parameter determines the smallest valve opening. Thanks to this parameter, the valve may be opened minimally, to
maintain the smallest flow.
NOTE
If the minimum opening is set to 0% (completely closed), the pump will not work when the valve is closed.
6.1.1.11 PROPORTIONALITY COEFFICIENT
Proportionality coefficient is used for defining valve stroke. The closer to the pre-set temperature, the smaller the stroke. If the
coefficient value is high, the valve takes less time to open but at the same time the opening degree is less accurate.
The following formula is used to calculate the percent of a single opening:
𝑃𝐸𝑅𝐶𝐸𝑁𝑇 𝑂𝐹 𝑆𝐼𝑁𝐺𝐿𝐸 𝑂𝑃𝐸𝑁𝐼𝑁𝐺 = (𝑝𝑟𝑒𝑠𝑒𝑡 𝑡𝑒𝑚𝑝. −𝑠𝑒𝑛𝑠𝑜𝑟 𝑡𝑒𝑚𝑝. ) ∙ 𝑝𝑟𝑜𝑝𝑜𝑟𝑡𝑖𝑜𝑛𝑎𝑙𝑖𝑡𝑦 𝑐𝑜𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑡
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6.1.1.12 CALIBRATION
This function enables the user to calibrate the valve at any time. During this process, the valve is restored to its safe position –
in the case of CH valve it is fully open whereas in the case of floor valve and cooling it is closed.
6.1.1.13 ADDITIONAL SENSORS
When two mixing valves are used, this function enables the user can select the sensors which will provide temperature data for
the valve (for external and return temperature sensors). Temperatures can be read from the sensors of a given valve (own) or
the sensors of valve 2 (from module 2).
6.1.1.14 TEMPERATURE CONTROL
This parameter defines the frequency of water temperature sampling (control) downstream of the CH or DHW valve. If the
sensor detects temperature change (deviation from the pre-set value), the electric valve closes or opens appropriately (by the
pre-set stroke) to restore the pre-set temperature.
6.1.1.15 VERSION
This function enables the user to check the software version of the subordinate module.
6.1.1.16 VALVE REMOVAL
This option is used to remove the valve from the controller memory. Valve removal is used e.g. while disassembling the valve or
replacing the module (re-registration of a new module is necessary).
6.1.1.17 FACTORY SETTINGS
When factory settings option is activated, all customized settings of the CH boiler (saved in user's menu) are lost and replaced
with factory settings. Then, the parameters may be customized anew.
6.2 ROOM REG.TEMP.LOWER
The user defines the temperature value by which the pre-set CH temperature will be reduced when the pre-set room regulator
temperature is reached.