LG THERMA V User manual

Please read this manual carefully before operating your set and retain it for future
reference.
(Air-to-Water Heat Pump)
Original instruction
OWNER’S MANUAL
AIR-TO-WATER
HEAT PUMP
MFL69676301
Rev.00_050219
www.lg.com
Copyright © 2016 - 2019 LG Electronics Inc. All Rights Reserved.
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ΕΛΛΗΝΙΚΆ ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ

Table of contents
2Air-to-Water Heat Pump
TABLE OF CONTENTS
3 Safety Precautions
8 Instructions for the use of
owner’s manual
8 Important information
9 Glossary of used terms and conceptions
10 TERMOTRONIC controller
10 General
10 Controlling the device and heating system
11 Activating the device
11 Operation of the device
12 Standby
12 Operation HP STOP
12 Device HP STOP
13 Power outage
13 Display of the state of the device
14 Setting parameters
15 Setting the language
16 Quick settings
16 Setting the temperature of heating/cooling
18 Setting the temperature of heated water
21 Setting the temperature of DHW
22 Changing the operational mode -
winter/summer mode
24 Setting the cooling temperature
25 Switching on the additional heat source
26 Manual activation of the additional heat
source
28 Advanced settings
29 Heating settings
37 Operating mode
37 Setting the cooling system
38 Schedules
42 Alternative source
43 Programme for drying screeds
44 Meters for operating hours
45 Setting the date, hour and day of the week
45 Remote turn on/off
46 PV signal
46 Silent operation mode
47 User menus and parameters
47 Menu structure
54 Information display of
operation
55 Diagnostic displays
56 Display of the state of the device
58 Disruptions in operation,
alarms and troubleshooting
58 Troubleshooting
60 Maintenance and Service
60 Maintenance Activities
60 When the unit is not Operating
60 Call the service immediately in the following
situations
61 Settings of your heating
system at start-up
62 Search the Manual Using
Your Mobile

Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by
the following indications.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
ENGLISH
Owner’s Manual 3
• This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
• This appliance can be used by children aged from 8 years and above and
persons with reduced physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.
• Always ground the product.
- There is a risk of electric shock.
• Do not use a defective or underrated circuit breaker. Use the correctly rated
breaker and fuse.
- There is risk of fire or electric shock.
• Do not use a multi outlet. Always use this appliance on a dedicated circuit
and breaker.
- There is risk of fire or electric shock.
• For electrical work, contact the dealer, seller, a qualified electrician, or an
Authorized Service Center. Do not disassemble or repair the product by
yourself.
- There is risk of fire or electric shock.
• Always ground the product as per the wiring diagram. Do not connect the
ground wire to gas or water pipes lightening rod or telephone ground wire.
- There is risk of fire or electric shock.
WARNING
CAUTION
!
!
WARNING
!

4Air-to-Water Heat Pump
Safety Precautions
• Install the panel and the cover of control box securely.
- There is risk of fire or electric shock due to dust, water etc.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• Do not modify or extend the power cable. If the power cable or cord has
scratches or skin peeled off or deteriorated then it must be replaced.
- There is risk of fire or electric shock.
• For installation, removal or reinstall , always contact the dealer or an
Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the product on a defective installation stand. Be sure that the
installation area does not deteriorate with age.
- It may cause product to fall.
• Never install the unit on a moving base or a place from where it can fall
down.
- The falling unit can cause damage or injury or even death of a person.
• When the product is soaked (flooded or submerged) in water, contact an
Authorized Service Center for repair before using it again.
- There is risk of fire or electric shock.
• Be sure to check the refrigerant to be used. Please read the label on the
product.
- Incorrect refrigerant can prevent the normal operation of the unit.
• Don't use a power cord, a plug or a loose socket which is damaged.
- Otherwise it may cause a fire or electrical shock.
• Do not touch , operate, or repair the product with wet hands.
- There is risk of electric shock or fire.
• Do not place a heater or other heating appliances near the power cable.
- There is risk of fire and electric shock.
• Do not allow water to run into electric parts. Install the unit away from water
sources.
- There is risk of fire, failure of the product, or electric shock.
• Do not store or use or even allow flammable gas or combustibles near the
product.
- There is risk of fire.
• Wiring connections must be secured tightly and the cable should be routed
properly so that there is no force pulling the cable from the connection
terminals.
- Improper or loose connections can cause heat generation or fire.

Safety Precautions
ENGLISH
Owner’s Manual 5
• Safely dispose off the packing materials. Like screws, nails, batteries,
broken things etc after installation or service and then tear away and throw
away the plastic packaging bags.
- Children may play with them and cause injury.
• Make sure to check that the power device is not dirty, loose or broken and
then turn on the power.
- Dirty, loose or broken power device can cause electric shock or fire.
• In unit the step-up capacitor supplies high voltage electricity to the electrical
components. Be sure to discharge the capacitor completely before
conducting the repair work.
- An charged capacitor can cause electrical shock.
• When installing the unit, use the installation kit provided with the product.
- Otherwise the unit may fall and cause severe injury.
• Be sure to use only those parts which are listed in the service parts list.
Never attempt to modify the equipment.
- The use of inappropriate parts can cause an electrical shock, excessive
heat generation or fire.
• Do not use the product in a tightly closed space for a long time. Perform
ventilation regularly.
- Oxygen deficiency could occur and hence harm your health.
• Do not open the front cover or grille of the product during operation.
(Do not touch the electrostatic filter, if the unit is so equipped.)
- There is risk of physical injury, electric shock, or product failure.
• If strange sounds, smell or smoke comes from product, immediately turn the
breaker off or disconnect the power supply cable.
- There is risk of electric shock or fire.
• Ventilate the product room from time to time when operating it together with
a stove, or heating element etc.
- Oxygen deficiency can occur and hence harm your health.
• Turn the main power off when cleaning or repairing the product.
- There is risk of electric shock.
• Take care to ensure that nobody especially kids could step on or fall onto
the unit.
- This could result in personal injury and product damage.
• Take care to ensure that power cable could not be pulled out or damaged
during operation.
- Almost the antifreeze is a toxic product.

Safety Precautions
6Air-to-Water Heat Pump
• Do not touch any electric part with wet hands. you should be cut power
before touching electric part.
- There is risk of electric shock or fire.
• Do not touch refrigerant pipe and water pipe or any internal parts while the
unit is operating or immediately after operation.
- There is risk of burns or frostbite, personal injury.
• If you touch the pipe or internal parts, you should be wear protection or wait
time to return to normal temperature.
- Otherwise , it may cause burns or frostbite, personal injury.
• Do not touch leaked refrigerant directly.
- There is risk of frostbite.
• Make sure to install mixing valve (field supply). The mixing valve is setting
the water temperature. The hot water temperature maximum values shall be
selected according to the applicable legislation.
• Do not heated to a temperature of more than provided by the product.
- Otherwise, it may cause fire or damage of product.
• Two or more people must lift and transport the product.
- Avoid personal injury.
• Do not install the product where it will be exposed to sea wind (salt spray)
directly.
- It may cause corrosion on the product.
• Keep level even when installing the product.
- To avoid vibration or noise.
• Do not install the product where the noise or hot air from the unit could
damage or disturb the neighborhoods.
- It may cause a problem for your neighbors and hence dispute.
• Always check for gas (refrigerant) leakage after installation or repair of
product.
- Low refrigerant levels may cause failure of product.
• Do not use the product for special purposes, such as preserving foods,
works of art, etc. It is a consumer AWHP, not a precision refrigeration
system.
- There is risk of damage or loss of property.
• Do not block the inlet or outlet of air flow.
- It may cause product failure.
CAUTION
!

Safety Precautions
ENGLISH
Owner’s Manual 7
• Use a soft cloth to clean. Do not use harsh detergents, solvents or
splashing water etc.
- There is risk of fire, electric shock, or damage to the plastic parts of the
product.
• Do not step on or put anyting on the product.
- There is risk of personal injury and failure of product.
• Do not insert hands or other objects through the air inlet or outlet while the
product is operating.
- There are sharp and moving parts that could cause personal injury.
• Be cautious when unpacking and installing the product.
- Sharp edges could cause injury.
• If the refrigerant gas leaks during the repair, do not touch the leakaing
refrigerant gas.
- The refrigernat gas can cause frostbite (cold burn).
• Do not tilt the unit when removing or uninstalling it.
- The condensed water inside can spill.
• Do not mix air or gas other than the specified refrigerant used in the system.
- If air enters the refrigerant system, an excessively high pressure results,
causing equipment damage or injury.
• If the refrigerant gas leaks during the installation, ventilate the area
immediately.
- Otherwise it can be harmfull for your health.
• Dismantling the unit, treatment of the refrigerant oil and eventual parts
should be done in accordance with local and national standards.
• Do not expose your skin or kids or plants to the cool or hot air draft.
- This could harm to your health.
• Use a firm stool or ladder when cleaning, maintaining or repairing the
product at an height.
- Be careful and avoid personal injury.
• The hot water may not be available immediately, during disinfection
operation or depending on the amount of hot water.
• During floor heating operation it is important to limit the minimum/maximum
water temperature.

Instructions for the use of owner’s manual
8Air-to-Water Heat Pump
Before first use, read owner’s manual thoroughly and learn its content. You will learn the purpose,
functions and the handling procedures for the device.
In case of malfunctions of the heating system, firstly, read the sections(Disruptions in operation,
alarms and troubleshooting) and consult your installer who will find the reason for the malfunction
and resolve it. In case the malfunction cannot be resolved, he will contact the customer service of the
manufacturer who will resolve the malfunction.
Important information
The instructions are written to give you information on all the needed activities before the first and
further use. The manual describes the process of setting up and use of the device.
Incorrectly set parameters of the control unit can lead to stoppage or incorrect operation of the
device. To avoid risks, make note of what each symbol denotes as described below. Follow all
general safety instructions and warnings associated with the operation.
NOTE
If this product is being handed over to a third person, ensure that you provide them with this
manual too.
Instructions for the use of owner’s manual

Instructions for the use of owner’s manual
ENGLISH
Owner’s Manual 9
Glossary of used terms and conceptions
- ALTERNATIVE SOURCE: The heat source is used for systems with solar collectors, masonry
heaters and wood stoves when we either do not have a heat source on hand at any moment or an
automatic switch through the signal from the controller of the device (i.e. in a wood stove) is not
possible.
- AUXILIARY EXTERNAL SOURCE: The heat source (i.e. oil/gas/pellet/external heater furnace) that
can be used with the device alternately-for example, for the controller of the device, the signal is
alternately transmitted by the automatic switch. In case of device malfunctioning(in the anti-freeze
programme), the alternative source can take over the task of heating for a short time.
- ADDITIONAL SOURCE or Backup source: The electric flow heater installed in the device and turns
on in the case of device malfunctioning (in the antifreeze program). This ensures temporary
operation for bridging the time until an authorized person from the service company arrives to
correct the error. The additional source can also be used for bivalent heating operation. This means
that in case the heat pump no longer has the heating capacity that could cover the heat losses of
the building (very low ambient temperatures), the electrical heater turns on to provide additional
heat. Both heat sources work in bivalent parallel operation.
- HEATING WATER: The liquid which flows inside the heating system (pipelines, floor, wall and
radiator heating).
- DHW: The water intended for sanitary use (cleaning, showering, washing ...).
- HEAT PUMP (HP): The device which takes energy from the environment and supplied mechanical
work and adds warmth to heating and DHW. In the text below the term ‘device’ will be used for the
heat pump.
- AW: The device takes heat from the air.
- Parameter NORMAL: The desired temperature of heating in the Normal mode of operation.
- Parameter ECO: Lowering the desired temperature in the Eco mode of operation.
- Parameter COMFORT: Raising the desired temperature in the Comfort mode of operation.

TERMOTRONIC controller
10 Air-to-Water Heat Pump
Controlling the device and heating system
The device and heating system can be controlled with the use of 4 buttons on the controller interface
TERMOTRONIC. The controller interface has a 4-line LCD screen which displays the current state of
the device or controller and a LCD light indicator of malfunctions operation of the device ALARM).
The controller interface TERMOTRONIC in devices:
General
TERMOTRONIC is a self-adapting controller for controlling the heat pump (DEVICE) and the heating
system. It controls operation of the device to ensure the most efficient way to produce the desired
temperature of the building based on the of the heating system and outside temperature.
The TERMOTRONIC controller offers controlling the device and the heating system of the building
(not more than 4 heating circuits) as well as controlling the heating with an alternative heat source,
active cooling with the device, heating DHW with the device and/or alternative heat source and/or
backup source.
Possibility of controlling the elements of the heating system with the controller TERMOTRONIC:
- 1 x Direct circuit,
- 1 x direct or mixing circuit,
- Domestic Hot Water,
- Heat curve (based on outside temperature),
- Cooling (floor, fan coil),
- Control of additional external heat source (oil or gas boiler).
With the optional expansion module, you can expand the functionality to:
- 2 x additional direct or mixing circuits,
- DHW circulation,
- Alternative heat source (Thermo-solar Collectors or Biomass furnace) for heating only.
- Display of Buffer tank temperatur
TERMOTRONIC controller

TERMOTRONIC controller
ENGLISH
Owner’s Manual 11
BUTTON BUTTON FUNCTION
MENU: Scrolls through the main menu and sub-menus.
ENTER: On, off, accessing the menu, accessing the settings and
confirming selected values.
»+«: Selects the values, by scrolling upwards the menus and sub-menus.
»-«: Selecting the values, scrolling down the menus and sub-menus.
ALARM: Indicates device malfunction.
Standby................................
Heating 35.5°C
Return 35.3°C
DHW 49.0°C
Operation of the device
After the start-up delay time, the device starts operating in the selected mode (heating, cooling or
heating DHW) according to present needs. The display displays the status:
In a scenario where the set temperature parameters (Heating, Return, DHW ...) is reached, the
device displays Standby.
Heating................................
Heating► 35.5°C
Return 35.5°C
DHW 49.0°C
NOTE
- The temperature values can differ from the above.
This also applies for all the following pictures.
- Before shutting down the device, if it is in a state of the device was in a state of HP STOP, it
returns to the HP STOP mode after switching on the main switch or installation breakers. The
display displays HP STOP. The device is switched ON by holding the (ENTER) key for 3
seconds - see below for more information.
NOTE
The delay of the start, of the device depends on the factory settings.
Activating the device
After switching on the main switch or installation breaker, the interface screen displays the current
state of the device - for the short delay time. The device is not operational yet.

TERMOTRONIC controller
12 Air-to-Water Heat Pump
Standby................................
Heating 35.5°C
Return 35.3°C
DHW 49.0°C
NOTE
The device enters the standby mode even when any operation is protected (compressor start-up
delay, insufficient water flow).
Device HP STOP
The device can be disconnected from the power supply by switching the main switch to position “0”
or disconnecting the installation breaker (the electrical power supply fuses).
NOTE
Devices must not be disconnected from the power supply for a lengthy period (via the main switch
or circuit breakers) as this will result in disabling the devices protection against water freezing in
the system which leads to complete device malfunction. Here the requirements from the
installation manual have to be considered.
Operation HP STOP
In case you want to shut down the device, press the (ENTER) key and hold it for 3 seconds.
The operation of the device is interrupted but the device is still active.
The device can be turned on again by pressing the (ENTER) key and holding it for 3 seconds.
Standby................................
HP STOP 35.5°C
Return 35.3°C
DHW 49.0°C
Standby
The device enters standby state when the values of the selected parameters Heating, Cooling, DHW,
device protection ... are reached. The display of the interface displays the status:

TERMOTRONIC controller
ENGLISH
Owner’s Manual 13
Display of the state of the device
After activating the power supply, the device displays current state of the device on the display
according to the operating mode and the values of basic parameters of the heating/cooling system of
the building.
Keys and allow scrolling up and
down the basic display.
NOTE
In case of a power outage longer than 2 hours air-water models with a water connection, water
has to be drained out from the connecting pipes between the external and the internal devices.
Operate in accordance with the specifications as described in the installation manual.
Standby................................
Heating 35.5°C
Return 32.3°C
DHW 49.0°C
READING ON THE DISPLAY DESCRIPTION
Standby Current condition of operation.
Heating 35.5 °C Set or calculated temperature of heating (only in winter mode).
Return 32.3 °C Current temperature of the return.
DHW 49.0 °C Current temperature of DHW.
T outside 7 °C Current outside temperature.
TD60 after 12 days
Time left until the start of DHW thermal desinfection (i.e. next
thermal desinfection will begin in 12 days). Setting of DHW
thermal desinfection is controlled by changing the parameters TD,
TD every and Start at described in section 6 of the basic menu
DHW.
2016/02/10 12:24 TUESDAY Current time and day of the week.
Power outage
In case of a power outage, the device ceases to operate. After power is restored the device
undergoes 300 seconds of protection mode and then automatically returns to the mode before the
power outage. In case of a power outage, the controller retains all the settings that were set before
the outage.

TERMOTRONIC controller
14 Air-to-Water Heat Pump
Setting parameters
All parameter settings of the device’s operation and heating/cooling system of the building are set as
described below.
1
For entering the user menu press the key
(MENU) on the basic display.
2
The currently chosen menu is marked by the
symbols > < (CHOOSE).
Keys or select the desired menu.
To enter the selected menu, press the
(ENTER) key. For exiting the menus to the basic
display press the (MENU) key. The
display shows only those menus which were
actually activated during the start-up of the device.
3
After entering the selected menu, the initial
parameter is marked buy the symbols
> < (CHOOSE). The key selects the
parameter to change. When you select
the parameter, press the key (ENTER).
4
The signs * * along the chosen parameter
indicate the “mode setting” (SET). The value of
the chosen parameter can be changed to the
desired value by using the key or .
To confirm the settings, press the key
(ENTER).
5
After confirming the settings by pressing the key
(ENTER), the signs * * (SET) change
back into the signs > < (CHOOSE). For
changing the value of other parameters, repeat the
process. After completing the settings you can
return to the main menu by pressing the
key (MENU).
Standby................................
Heating 35.5°C
Return 32.3°C
DHW 49.0°C
<NOTE>
> Heating <
1. Circuit
2. Circuit
3. Circuit
C/W I
Schedule
*Normal 35.5°C *
Eco -2.0°C
C/W I
Schedule
>Normal 39.1°C <
Eco -2.0°C
C/W I
Schedule
>Normal 35.5°C <
Eco -2.0°C
MARK DESCRIPTION
> < The arrows on the sides indicate the presently selected parameter/menu (CHOOSE).
* * The stars on the sides indicate the mode of setting the chosen parameter (SET).
▶
A full arrow with the name of the parameter (i.e.: DHW ▶50 °C) indicates the current
operation of the circulation pump or the position of the switching valve (i.e. DHW). In
the case of more circulation pumps of the heating system being in operation, more full
arrows are displayed.

TERMOTRONIC controller
ENGLISH
Owner’s Manual 15
Setting the language
The controller enables setting different display languages. To set a language of your choice, follow
the steps below.
1
Press key (MENU) of the basic menu.
2
Use the key to choose the Mode
(Mode, Regime, Betriebsart, Nacin).
To confirm the settings, press the key
(ENTER).
3
Use the button to choose the parameter
Langugage EN (Jezik SI, Lingua IT,
Sprache DE, Jezik CRO).
To confirm the settings, press the key
(ENTER).
Standby................................
Heating 35.5°C
Return 32.3°C
DHW 49.0°C
> Mode <
Temperatures
C/W ALL I
D8-PV Cooling
Silent mode
>Language EN <

Quick settings
16 Air-to-Water Heat Pump
Setting the temperature of heating/cooling
The temperature in the heated/cooled room is controlled in two stages, by setting the temperature:
1. of the room with the spatial corrector or thermostat and
2. the heating/cooling water in the accumulator and heating/cooling circuits on the controller
TERMOTRONIC.
The basic function of the device is switching ON the heating and DHW. The controller of the device
calculates the optimal required temperature of the hot water to achieve the desired air temperature of
the room by using information about the winter/summer operating mode, the chosen heating/cooling
and according to the external temperature.
NOTE
The parameters of the TERMOTRONIC controller were set according to project documentation of
the heating/cooling system, recommendations of the manufacturer for the device and your
requests by the authorized contractor. At handover, the contractor practically demonstrates
operation of the product and the important setting modes for each of the parameters.
NOTE
In a scenario where the heating/cooling circuit has been operated for a lengthy period of time (For
example, floor heating has been operated for 4 days at a stretch); but the desired temperature has
not yet been achieved, check the temperature settings of the water that is heated. This could
occur in spite of the change in setting of the temperature via a spatial corrector or thermostat.
Quick settings

Quick settings
ENGLISH
Owner’s Manual 17
NOTE
- The space corrector influences the whole heating circuit and not the temperature of the individual
room. The desired room temperature where the spatial corrector is located in the reference
temperature for all other rooms of the heating circuit controlled by this spatial corrector. This is
why it must be located in a room where the desired temperature is as close to the desired
average temperature of the other rooms (halls, living room). It must not be located close to heat
sources (fireplace, TV, direct sunlight, etc.).
Before raising the temperature of heated water or the desired room temperature on the spatial
corrector make sure the valves on the heat sources in the room where it is too cold for you, are
completely or sufficiently opened. If the temperature of other rooms is too high or too low it is
necessary to sufficiently open or close the heat sources in the rooms where the deviations from
the desired temperature take place.
- For maintaining the correct operation of the heating system you have to choose a suitable
operating mode - winter (heating and DHW) or summer (DHW and cooling - only in certain
models).

Quick settings
18 Air-to-Water Heat Pump
• Setting the room temperature with a room thermostat
For setting the room temperature with a room thermostat, read the manual that comes with the
product or consult the installer.
NOTE
- In case the thermostat is turned on all this time and the heating system does not heat/cool the
space to the desired temperature, check the settings of temperatures of the heating system on
the device.
- For choosing the function of heating or cooling an appropriate thermostat has to be installed
which allows both the functions.
- For maintaining the correct operation of the heating system, you have to choose a suitable
operating mode - winter (heating and DHW) or summer (DHW and cooling - only in certain
models).
NOTE
Upon start-up the heated water temperature control was set to Heating curve mode.
The authorised contractor has followed the specifications as mentioned in the the chapter 'Setings
of your Heating System at Startup' and has commissioned the system accordingly.
Setting the temperature of heated water
Upon start-up, the control of the hot water temperature was set to Heating mode which ensures the
most energy efficient operation for the device. In case, the automatically calculated temperature of
the heated water (in accordance with the external temperature) is inadequately heated, the
temperature of the heated water can quickly be raised or lowered by changing the parameter of
cooler/hotter (C/W).
The values of the parameter C/W are customisable. 1. Circuit 2. Circuit 3. Circuit or 4. Circuit
depending on which temperature you want to change.

Quick settings
ENGLISH
Owner’s Manual 19
By setting the parameter C/W you set the number of temperature steps for which you want to raise or
lower the temperature of heated water. You perform the settings in the following steps:
1
Press key (MENU) in the basic menu.
2
In the user interface, use the key and
choose| menu 1. Circuit and press the key
(ENTER).
3
The first line has the parameter C/W selected.
To set the parameter press key (ENTER).
4
* * appear along the chosen parameter. The
keys and change the value of the
parameter C/W. This raises or lowers the
temperature of heated water.
5
Each pressing the key each time raises/
lowers the temperature of the heating circle for
one temperature step (<, >).
To confirm the settings press the key
(ENTER).
6
After conformation the controller calculates the
new temperature setting for the heating circuit
or heated water according to the external
temperature (in case of weather control).
For returning to the basic view press the key
(MENU) twice.
Standby................................
Heating 35.5°C
Return 32.3°C
DHW 49.0°C
Heating
> 1. Circuit <
2. Circuit
3. Circuit
*C/W I *
Schedule
Normal 35.5°C
Eco -2.0°C
*C/W I>> *
Schedule
Normal 35.5°C
Eco -2.0°C
*C/W I>> *
Schedule
Normal 35.5°C
Eco -2.0°C
>C/W I <
Schedule
Normal 35.5°C
Eco -2.0°C

Quick settings
20 Air-to-Water Heat Pump
For advanced changing the temperature of the heated water control mode of the heating system
refer to the Chapter(Heating setting).
NOTE
- The temperature of heated water can be raised or lowered for no more than four temperature
steps.
- The heating and individual circuits settings are separated from the cooling, this is why all settings
for heating remain unchanged with the change of the mode into cooling. The same is true for
parameter settings in the menu Cooling, 1. Circuit, 2. Circuit, 3. Circuit, 4. Circuit and Heating,
which are separated so as to maintain all settings when changing the heating Mode
(winter/summer).
- For heating curve you can choose various temperature modes of operation with setting daily and
weekly schedules.
- In case of radiator heating for a significant change, change the parameter C/W for 2 or 3
temperature steps at once but only for 1 temperature step in case of floor heating.
Please note that the responsiveness of the heating system in the case of radiator heating is
quicker than in the case of floor heating. By changing the parameter C/W several hours can pass
(in the case of floor heating) before the heating system responds properly and you can feel the
change of the adjustment.