Kronoterm KT-2A User manual

ENG
USAGE
_
OPERATING
INSTRUCTIONS
Technician, user
_
KT – 2A
Controller
A System

2
DESCRIPTION OF DOCUMENT AND APPROACH
The installation instructions are a part of the KRONOTERM instruction system,
which follows our products’ lifecycle from design phase to service support.
The installation instructions are the basis for our expert and professional approach
to providing and maintaining KRONOTERM heat pump systems.
Operating instructions/17-19-45-6702-02
Printed in Slovenia, all publication rights reserved by Kronoterm d.o.o.
This work is protected by copyright. Any use of this document outside of the
Copyright and Related Rights Act and without the express consent of Kronoterm
d.o.o. (hereinafter: Kronoterm) is illegal and punishable by fine. We reserve the
right to make changes.
Despite taking extensive care to ensure the accuracy of all pictures and descriptions,
Kronoterm reserves the right to make corrections, changes to technical details,
and changes to pictures with no prior notice. Information herein is given based on
the latest available product information at the time of drafting and printing this
product sheet. We also reserve the right to cease sales of an individual product or
even the entire collection.
Pictures are symbolic and are only intended as a reference. Despite our efforts we
cannot ensure that the products’ true colors will be faithfully represented in print
and on electronic screens; similarly dimensions and other graphic elements might
be represented incorrectly. Products may differ from their visual representations.
Write to [e-mail] for any additional questions.
Operating instructions
A System
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TABLE OF CONTENTS
1 IMPORTANT INFORMATION ................................. 4
1.1 SYMBOLS....................................................................................... 4
1.2 GENERAL WARNINGS.......................................................... 4
1.3 SAFETY WARNINGS AND INSTRUCTIONS.............. 4
2 HOME SCREEN AND NAVIGATION .................... 5
3 GRAPHIC INTERFACE AND CONTROLLER..... 6
3.1 LOCKING BUTTONS ............................................................... 6
3.2 QUICK VIEW................................................................................ 6
4 THERMOSTAT ............................................................. 7
4.1 STATUS LINE IN THERMOSTAT MODE........................7
4.2 SETTING THE DESIRED AMBIENT
TEMPERATURE ..........................................................................7
4.3 SETTING PARAMETERS IN THERMOSTAT MODE
.............................................................................................................. 8
4.4 SETTING THE DHW TEMPERATURE........................... 9
4.5 TURNING ON THE ONETIME QUICK HEATING
OF DHW ........................................................................................ 9
4.6 SETTING THE HEATING LOOP OPERATION
MODE............................................................................................. 10
5 CONTROLLER AND THERMOSTAT................... 10
5.1 STATUS LINE IN CONTROLLER MODE......................11
5.2 TURNING ONOFF THE HEAT PUMP AND
HEATING SYSTEM ...................................................................12
5.3 TURNING HEATING AND COOLING ONOFF.......12
5.4 SETTING THE DESIRED AMBIENT
TEMPERATURE.........................................................................13
5.5 SETTING THE DHW TEMPERATURE..........................13
5.6 TURNING ON THE QUICK HEATING OF DHW .. 14
5.7 MANUAL ACTIVATION OF ANTILEGIONELLA
PROGRAM....................................................................................15
5.8 SETTING THE HEATING LOOP OPERATING
MODE..............................................................................................15
5.9 PARALLEL ACTIVATION OF THE ADDITIONAL
HEATER 1.......................................................................................16
5.10 ACTIVATION OF BACKUP HEATING MODE .........16
6 MENUS AND PARAMETERS IN OPERATING
MODE.............................................................................17
6.1 SHORTCUT MENU ..................................................................18
6.2 SYSTEM OVERVIEW ..............................................................19
6.3 APPLIANCE ALARMS...........................................................20
6.4 BUFFER TANK HEATING....................................................21
6.5 HEATING LOOPS WITH THE KT1 OR KT2A
THERMOSTATS ........................................................................22
6.6 HEATING LOOPS WITHOUT THE KT1 OR KT2A
THERMOSTATS ........................................................................23
6.7 HEATING THE POOL............................................................24
6.8 SEEING THE HEATING LOOP SCHEDULE.............25
6.9 DHW ...............................................................................................25
6.10 CIRCULATING DHW.............................................................26
6.11 SETTINGS.....................................................................................27
6.12 SETTING THE REGULATOR..............................................28
7 HEATING CURVE......................................................30
8 SETTING THE SCHEDULE .....................................31
8.1 MODE..............................................................................................31
8.2 SETTING THE SCHEDULE..................................................31
9 SCREEDDRYING PROGRAM.............................. 33
10 ADDITIONAL HEATER............................................33
11 ANTIFREEZING MODE .........................................33
12 ERRORS, WARNINGS AND NOTIFICATIONS34
12.1 DISPLAYS.....................................................................................34
12.2 LIST OF ALARMS.....................................................................34
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1 IMPORTANT INFORMATION
These instructions were written to inform you of all
important steps to take between commissioning and
further use. They describe how to set and use the
appliance.
Incorrectly set parameters on the controller can lead to
a malfunction or cause the appliance to stop working.
Symbols in these instructions emphasize important in-
formation on mitigating risks. Follow all general safety
instructions and warnings on appliance operation.
• After installation these instructions must be gi-
ven to the end user.
• In case the product is handed over to a third
party, these instructions must also be given to
said third party.
1.1. SYMBOLS
Symbols in these instructions emphasize important
information on mitigating risks.
These symbols indicate risks for the
user or the appliance itself.
DANGER: A risk that could lead to gra-
ve bodily harm.
WARNING: A risk that could lead to
minor bodily harm.
CAUTION: A risk that could damage or
destroy the appliance.
These symbols indicate important
information.
NOTE: Declaration on important infor-
mation about the appliance and the
manufacturer’s requirements.
1.2. GENERAL WARNINGS
Improper handling of the appliance can lead to it being
damaged and can cause harm to person or property.
DANGER
All instructions, examples of good practice, and
legislation must be abided when wiring and
inspecting electric components to ensure safe
handling.
NOTE
Read these instructions thoroughly before using.
Any processing or replacement of the appliance’s
original integral parts will void the manufacturer’s
warranty for the appliance’s safety and proper
function. The manufacturer is not responsible
for the consequences of negligent or improper
appliance use. The manufacturer is not responsible
for any claim for compensation in the event of
appliance damage or other damage resulting from
not adhering to the instructions herein.
NOTE
The warranty is voided if the appliance is installed
differently from the manner prescribed herein.
Provide for the appliance’s regular maintenance by
a qualified service technician.
Require that the installation technician explain how
the appliance works and how to use it.
Keep these instructions in a dry place in the
appliance’s vicinity.
1.3. SAFETY WARNINGS AND
INSTRUCTIONS
DANGER
Do not clean the appliance or interfere with it while
it is in operation.
NOTE
Only authorized service technicians may service
and maintain the appliance.
Call the service technician that installed
your appliance in the event of a disruption or
malfunction in your appliance’s operation.
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WARNING
This appliance is not to be played with.
The appliance may only be used by people who
have learned about its safe operation and who
understand the potential dangers of operating such
an appliance.
Children over 8 years of age and persons with
reduced physical or mental capabilities and/or
lacking experience and knowledge may only use
this appliance under the supervision of a qualified
individual.
Ensure that the appliance’s operation never
threatens anyone’s safety. Prevent children and
unqualified persons from accessing the appliance.
Unplug the appliance before any servicing.
2 HOME SCREEN AND NAVIGATION
The KT-2A Controller has 3 operational modes:
Thermostat.
Controller for the heat pump
and heating system.
Thermostat and controller
for the heat pump and
heating system
NOTE
The authorized installation technician sets the KT-
2A operational mode when installing the appliance.
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3 GRAPHIC INTERFACE AND
CONTROLLER
1BACK button for:
• returning to the previous menu,
• undoing parameter settings in menus,
• exiting menus.
2The OK za:
• confirming settings,
• choosing menus.
3 The UP button for:
• scrolling up through menus,
• changing or increasing the value of
individual parameters.
4The DOWN button for:
• scrolling down through menus,
• changing or decreasing the value of
individual parameters.
5 Screen for displaying menus, parameter
values, settings, and the status of the
appliance and/or heating system.
6 Status line to display the status quo of the
heat pump and/or heating system.
3.1. LOCKING BUTTONS
Locking the
buttons on
the controller
prevents the
changing of
settings by
unauthorized
persons.
To lock the buttons, press the buttons and
simultaneously, and hold them for 2 seconds. The sym-
bol is shown when buttons are locked.
To unlock the buttons, press the buttons and
simultaneously, and hold them for 2 seconds.
3.2. QUICK VIEW
Access the
Quick View by
pressing
on the home
screen. Press
a second
time to toggle
between the
system overview
and the weather
forecast.
1 Weather symbol
2 High (day-time) temperature
3 Humidity
4 Weekday
5 Low (night-time) temperature
6 Icon of current operational mode
7 Outside temperature
8 Hour
NOTE
The weather forecast feature is only activated if
your appliance is connected to the internet and
if you have set the device’s location in the Cloud.
Kronoterm.com online interface.
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6 Alarm:
Warning – verify the meaning of the warning
code and take appropriate measures, it is not
necessary to call a service technician.
Error – verify the meaning of the error code
and call a service technician if necessary.
7 The heating loop’s circulation pump:
The heating loop’s circulation pump is
working.
4.2.SETTING THE DESIRED AMBIENT
TEMPERATURE
Press or to show the set ambient
temperature. The temperature is outlined in orange.
Set the desired ambient temperature by pressing
or
Confirm the change by pressing or by waiting
8 seconds for it to confirm automatically.
4 THERMOSTAT
Home screen in thermostat mode:
1 A grey bar in the status line shows that the KT-
2A Controller is set on thermostat mode.
2 Ambient temperature.
3 Outside temperature.
4 Time.
4.1. STATUS LINE IN THERMOSTAT
MODE
5
16 2 4 7 3
1 Heating loop operational mode:
Heating loop is in NORMAL mode.
Heating loop is in ECO mode.
Heating loop is in COMFORT mode.
2 Quick heating DHW:
Quick heating function for DHW is activated.
3 Locking buttons:
Buttons are locked.
4 Heating loop operational mode:
ON – the heating loop is working constantly,
OFF – the heating loop is not working,
AUTO – the heating loop is working according to
schedule.
5 Annual inspection:
Notification for an annual inspection of your
heat pump – order an inspection.
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4.3.SETTING PARAMETERS IN
THERMOSTAT MODE
Settings for the heating loop’s operational mode:
ON – the heating loop is working con-
stantly in Normal mode.
AUTO – the heating loop is working
according to schedule.
OFF – the heating loop is not working
Quick heating DHW:
ON – quick heating for DHW is
activated.
OFF – quick heating for DHW is
activated
Setting the DHW temperature.
Setting the display’s brightness.
Night-time screen mode, the screen dims in dark:
The screen dims in 30% dark.
The screen dims in 60% dark.
The screen dims in 100% dark.
The screen stays illuminated.
SETTING BRIGHTNESS
Table 1
Brightness 15%.
Brightness 30%.
Brightness 40%.
Brightness 60%.
Brightness 100%.
SETTING NIGHTTIME MODE
Table 2
The screen automatically dims at 30%
darkness.
The screen automatically dims at 60%
darkness.
The screen automatically dims at 90%
darkness.
The screen stays illuminated.
etting parameters
Menu Parameter name Parameter value range Note
Activating the
quick heating of
DHW.
ON – Turn on.
OFF – Turn off.
Operation mode.
ON – Turn on.
AUTO –Working
schedule.
OFF – Turn off.
Setting
brightness. 0-100 % Values are given in Table 1.
Setting night-
time mode. 0-100 % Values are given in Table 2.
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4.4.SETTING THE DHW TEMPERATURE
Press to get to the parame-
ter menu.
Press or to browse
DHW parameters.
Press to begin setting
parameters.
Press or to set the
desired DHW temperature.
Confirm the settings by
pressing .
Press to return to home
screen.
4.5. TURNING ON THE ONETIME QUICK
HEATING OF DHW
Press to get to the parame-
ter menu.
Press or to find the
quick activation.
Press to begin setting
parameters.
Press or to set it to
ON.
Confirm the settings by
pressing .
Press to return to home
screen.
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4.6.SETTING THE HEATING LOOP
OPERATION MODE
Press to get to the
parameter menu.
Press or to find the
heating loop parameter.
Press to begin setting
parameters.
Press or to set it to ON.
Confirm the settings by
pressing .
Press to return to home
screen.
5 CONTROLLER AND THERMOSTAT
Home screen of the KT-2A controller in controller
mode.
1 A red bar in the status line shows that the KT-2A
is set to controller + thermostat mode.
2 Ambient temperature or water temperature in
the heating loop/system.
3 Outside temperature.
4 DHW temperature.
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5.1. STATUS LINE IN CONTROLLER
MODE
51 62 4 11109873
1 Heat pump status:
The heat pump and heating system are
turned on.
The heat pump and heating system are
turned off.
Locked screen, heat pump on.
Locked screen, heat pump off.
2 Heat pump operational mode:
Heating.
Heating DHW.
Active cooling.
Heating the pool.
Manual activation of anti-Legionella
program.
Standby – your heat pump will wait until it
needs to work.
The remote deactivation signal is on.
Quick heating DHW.
3 Heat pump operating mode:
Heat pump is currently ON.
Passive cooling is activated.
The anti-freezing program is activated.
4 Status of additional heater:
Additional heater 2 is active (external
source).
Additional heater 1 is active (internal
electric heater).
Both additional heaters 1 and 2 are active.
5 Heating with biomass or solar cells:
Heating with biomass or solar cells is
active.
6 Heat pump operating mode:
Defrosting is active.
The block on turning the heat pump on is
active (after turning it off).
You need an annual inspection of your
heat pump.
7 Alarm:
Error – verify the meaning of the error code
and call a service technician if necessary.
Warning – verify the meaning of the
warning code and take appropriate
measures, it is not necessary to call a
service technician.
Information - verify the information code.
8 Photovoltaic power signal:
A signal from a PV power station is active.
9 Heating / Cooling / DHW mode:
Heat pump is in heating and DHW heating
mode.
Heat pump is in cooling and DHW heating
mode.
Heating and cooling mode is turned off.
The heat pump is only heating DHW and
the pool.
10 Additional heater mode:
The additional internal electric heater is on.
Activation of backup heating mode.
11 Heating loop operation mode:
ECO mode is active.
COMFORT mode is active.
Screed-drying mode is active.
Vacation mode is active.
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5.2. TURNING ONOFF THE HEAT PUMP
AND HEATING SYSTEM
Press to get to the main
menu
Choose the menu “shortcut”
by pressing the button OK.
Confirm the shortcut menu by
pressing .
Press or to find on/off.
Press to begin setting
parameters.
Press or to choose
the setting OFF or ON.
Confirm the settings by
pressing .
Confirm the parameter value
by pressing .
Cancel the parameter value by
pressing
To return to the home screen
press 2 times.
5.3. TURNING HEATING AND COOLING
ONOFF
Press to get to the main
menu
Choose the menu “shortcut”
by pressing the button .
Press or to find the
operational parameter.
Press to begin setting
parameters.
Press or to set pa-
rameters for the cooling and
heating DHW mode.
Confirm the settings by
pressing .
Cancel the parameter value by
pressing
To return to the home screen
press 2 times.
NOTE
Heating, cooling and DHW heating modes:
The appliance is in heating and DHW mode.
The appliance is in cooling and DHW mode.
The appliance is not heating or cooling the building,
only DHW and pool heating is active.
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5.4. SETTING THE DESIRED AMBIENT
TEMPERATURE
Press to get to the main
menu
Press or to search for
the heating loop settings.
Choose the heating loop menu
by pressing .
Press or to find
the ambient temperature
parameter.
Press to begin setting
parameters.
Press or to set the
desired ambient temperature.
Confirm the settings by
pressing .
Cancel the parameter value by
pressing .
To return to the home screen
press 2 times.
5.5. SETTING THE DHW TEMPERATURE
Press to get to the main
menu.
Press or to search for
the DHW settings.
Choose the DHW menu by
pressing .
Press or to find the
DHW temperature parameter.
Press to stop setting
parameters.
Press or to set the
desired DHW temperature.
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Confirm the settings by
pressing .
Cancel the parameter value by
pressing
To return to the home screen
press 2 times.
5.6. TURNING ON THE QUICK HEATING
OF DHW
Press to get to the main
menu.
Choose the offered shortcut
menu by pressing .
Press or to find
the quick heating of DHW
parameter.
Press to begin setting
parameters.
Press or to set it to
ON.
Confirm the settings by
pressing .
ZTo return to the home screen
press 2 times.
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5.7. MANUAL ACTIVATION OF ANTI
LEGIONELLA PROGRAM
Press to get to the main
menu.
Choose the offered shortcut
menu by pressing .
Press or to find the
parameter to manually turn on
the anti-legionella program.
Press to begin setting
parameters.
Press or to set it to
ON.
Confirm the settings by
pressing .
To return to the home screen
press 2 times.
5.8. SETTING THE HEATING LOOP
OPERATING MODE
Press to get to the main
menu.
Press or to search for
the heating loop settings.
Choose the heating loop menu
by pressing .
Choose the offered parameter
and press to stop setting
parameters.
Press or set it to ON
or AUTO.
Confirm the settings by
pressing .
To return to the home screen
press 2 times.
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5.9. PARALLEL ACTIVATION OF THE
ADDITIONAL HEATER 1
Press to get to the main
menu.
Choose the offered shortcut
menu by pressing .
Press or to find the
parameter to manually turn on
the additional heater 1.
Press to begin setting
parameters.
Press or to set it to
ON.
Confirm the settings by
pressing .
To return to the home screen
press 2 times.
5.10. ACTIVATION OF BACKUP HEATING
MODE
Press to get to the main
menu
Choose the offered shortcut
menu by pressing .
Press or to find the
parameter to manually turn
on the reserve heating mode.
Press to begin setting
parameters.
Press or to set it to
ON.
Confirm the settings by
pressing .
To return to the home screen
press 2 times.
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6 MENUS AND PARAMETERS IN OPERATING MODE
NOTE
You can set various temperatures and operating modes for the heating loop, pool, buffer tank, and DHW tank.
NORMAL
The Normal Regulator mode keeps your set temperature.
ECO
The ECO Regulator mode keeps the temperature at the set ECO parameter lower than the
Normal temperature.
For cooling, the ECO Regulator mode keeps the temperature at the set ECO parameter
higher than the Normal temperature.
COMFORT
The COMFORT Regulator mode keeps the temperature at the set COMFORT parameter lower
than the NORMAL temperature.
For cooling, the COMFORT Regulator mode keeps the temperature at the set COMFORT pa-
rameter higher than the Normal temperature.
NOTE
The KT-2A Controller allows for unlimited temperature parameters, and the system automatically adjusts the
temperature to the allowed values.
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6.1. SHORTCUT MENU
Shortcut
Menu Parameter name Parameter value range Note
Turn on Holiday
mode
ON – Turn on
OFF – Turn off
ON – set the number of vacation days
0 – 999.
Mode
Heating
Cooling
OFF
AUTO
OFF – only DHW is heated (pool option).
Quick heating
DHW
ON – Turn on
OFF – Turn off
Anti-legionella
heating
ON – Turn on
OFF – Turn off Up to 67 C (with electric heater).
Pool heating loop
ON – Turn on
AUTO – Working
schedule
OFF – Turn off
Turn on additional
source
ON – Turn on
OFF – Turn off Turn on additional source.
Turn on additional
source
ON – Turn on
OFF – Turn off Turn on additional source.
Turn on heat pump ON – Turn on
OFF – Turn off
Filling the system
with water
ON – Turn on
OFF – Turn off Adding water to the heating system up to 1.3 bar.
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6.2. SYSTEM OVERVIEW
System overview
Menu Parameter name Parameter value range Note
Pipe
temperatures
Supply pipe temperature
Return pipe temperature
System pressure
Show the temperature and water pressure.
Buffer tank Actual temperature
Calculated (desired)
temperature
Overview of buffer tank temperature values.
DHW Actual temperature
Calculated (desired)
temperature
Overview of DHW temperature values.
Heating loop 1 Actual temperature
Calculated (desired)
temperature
Overview of heating loop 1 temperature values
Heating loop 2 Actual temperature
Calculated (desired)
temperature
Overview of heating loop 2 temperature values
Heating loop 3 Actual temperature
Calculated (desired)
temperature
Overview of heating loop 3 temperature values
Heating loop 4 Actual temperature
Calculated (desired)
temperature
Overview of heating loop 4 temperature values
Pool Actual temperature
Turn off
Overview of pool temperature values.
Alternative
source Actual temperature Overview of alternative source temperature values.
System
communication
status
WEB status
Link status
MB connection status
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6.3. APPLIANCE ALARMS
Appliance alarms
Menu Parameter name Parameter value range Note
Error 2114-b3 to 2335-b8 There is a disturbance in operation. The heat pump
and heating system do not work.
Warning 2115-b1 to 2341-b4 There was a light operational disturbance. The hea-
ting system works.
Information 2117-b13 Remote shut
downp
There is information regarding events in the operati-
on of the heating system. The heating system works
normaly.
Warning or error The warning or error was fixed.
Operating instructions
A System
17-19-45-6702-02