Vaillant VRC 700/6 User manual

en Operating instructions
Weather-compensated system
control
VRC 700/6
0020262548_01 - 28.11.2022

2Operating instructions 0020262548_01
Operating instructions
Contents
1 Safety .................................................................... 3
1.1 Action-related warnings ......................................... 3
1.2 Intended use .......................................................... 3
1.3 General safety information .................................... 3
2 Notes on the documentation .............................. 4
2.1 Observing other applicable documents ................. 4
2.2 Storing documents................................................. 4
2.3 Validity of the instructions...................................... 4
2.4 Nomenclature ........................................................ 4
2.5 Function availability ............................................... 4
3 Product description............................................. 4
3.1 Product design....................................................... 4
3.2 Main function ......................................................... 4
3.3 Zones..................................................................... 4
3.4 Hybrid manager ..................................................... 5
3.5 Frost protection function ........................................ 5
3.6 Preventing malfunctions ........................................ 5
3.7 Data plate .............................................................. 5
3.8 Serial number ........................................................ 5
3.9 CE marking ............................................................ 5
4 Operation.............................................................. 5
4.1 Operating structure................................................ 5
4.2 Basic display.......................................................... 6
4.3 Operating concept ................................................. 6
5 Operating and display functions........................ 8
5.1 Information............................................................. 8
5.2 Settings................................................................ 10
5.3 Operating modes ................................................. 14
5.4 Advanced functions ............................................. 15
5.5 Messages ............................................................ 16
6 Troubleshooting ................................................ 16
6.1 Implementing the setting if the heat pump
fails ...................................................................... 17
7 Care..................................................................... 17
7.1 Caring for the product.......................................... 17
8 Decommissioning.............................................. 17
8.1 Decommissioning the product ............................. 17
8.2 Recycling and disposal........................................ 17
9 Guarantee and customer service..................... 17
9.1 Guarantee............................................................ 17
9.2 Customer service................................................. 17
10 Technical data.................................................... 17
10.1 Product data in accordance with EU
Ordinance no. 811/2013, 812/2013 ..................... 17
Appendix ............................................................................ 18
A Overview of the operating and display
functions............................................................. 18
A.1 Operating modes ................................................. 18
A.2 End user level ...................................................... 18
B Troubleshooting ................................................ 22
C Maintenance messages .................................... 22
Index ................................................................................... 23

0020262548_01 Operating instructions 3
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:
Warning symbols and signal words
Danger!
Imminent danger to life or risk of
severe personal injury
Danger!
Risk of death from electric shock
Warning.
Risk of minor personal injury
Caution.
Risk of material or environmental
damage
1.2 Intended use
In the event of inappropriate or improper use,
damage to the product and other property
may arise.
The product is intended for using an eBUS
interface to control a heating installation with
heat generators from the same manufacturer.
Intended use includes the following:
–observance of the operating instructions
included for the product and any other
installation components
–compliance with all inspection and main-
tenance conditions listed in the instruc-
tions.
This product can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabil-
ities or lack of experience and knowledge if
they have been given supervision or instruc-
tion concerning use of the product in a safe
way and understand the hazards involved.
Children must not play with the product.
Cleaning and user maintenance work must
not be carried out by children unless they are
supervised.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document, shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
1.3 General safety information
1.3.1 Risk of material damage caused by
frost
▶Ensure that the heating installation always
remains in operation during freezing con-
ditions and that all rooms are sufficiently
heated.
▶If you cannot ensure the operation, have a
competent person drain the heating install-
ation.
1.3.2 Danger caused by improper
operation
Improper operation may present a danger to
you and others, and cause material damage.
▶Carefully read the enclosed instructions
and all other applicable documents, par-
ticularly the "Safety" section and the warn-
ings.
▶Only carry out the activities for which in-
structions are provided in these operating
instructions.

4Operating instructions 0020262548_01
2 Notes on the documentation
2.1 Observing other applicable documents
▶Always observe all operating instructions enclosed with
the installation components.
2.2 Storing documents
▶Store these instructions and all other applicable docu-
ments for further use.
2.3 Validity of the instructions
These instructions apply only to:
VRC 700/6 –article number
Great Britain 0020184838
2.4 Nomenclature
The following terms are used for simplification:
–System control: This refers to the VRC 700 system con-
trol.
–Remote control: If this refers to the VR 91 remote control.
2.5 Function availability
The functions described in these operating instructions are
not available for all system configurations.
The system control only shows the functions that are avail-
able in the system configuration you have installed.
3 Product description
3.1 Product design
1
2
3
4
5
6
5
1 Display
2 Wall base
3 Diagnostics socket
4 Wall base cover
5 Selection button
6 Rotary knob
3.2 Main function
The system control is a weather-compensated system con-
trol with an outdoor temperature sensor installed in the open
air.
The system control is connected to the outdoor temperat-
ure sensor and the heat generator. The system control con-
trols the heating installation and other connected compon-
ents, e.g. the domestic hot water generation for a connected
domestic hot water cylinder or the ventilation of a connected
ventilation unit.
3.2.1 Heating
The outdoor temperature sensor measures the outdoor
temperature and forwards the values to the system control.
When the outdoor temperature is low, the system control in-
creases the flow temperature of the heating installation. If the
outdoor temperature increases, the system control reduces
the flow temperature. The system control responds to the
fluctuations in the outdoor temperature and uses the flow
temperature to ensure that the room temperature remains at
the desired temperature.
3.2.2 Cooling
The room temperature sensor measures the room temper-
ature and sends the data to the system control. If the room
temperature is higher than the desired temperature that is
set, the system control switches cooling on.
3.2.3 Ventilation
Using a controlled exchange of air, the ventilation unit en-
sures that the living rooms are ventilated and aerated. The
system control controls the air volume flow via the ventilation
levels that are set.
3.2.4 Domestic hot water generation
A temperature sensor measures the temperature of the wa-
ter in the domestic hot water cylinder and forwards the val-
ues to the system control. If the temperature lies below the
set value, the system control increases the temperature in
the domestic hot water circuit and therefore heats up the wa-
ter to the set domestic hot water temperature.
3.2.5 Circulation
The secondary return pipe is connected to the domestic hot
water pipe and forms a circuit with the domestic hot water
cylinder. The circulation pump pumps the domestic hot water
through the domestic hot water pipe, either continuously or
on a time-controlled basis. This means that domestic hot
water is available at the draw-off points.
3.3 Zones
A building is divided into several zones if the heat demand
differs between different sections of the building.
–If underfloor heating and radiator heating are installed in
a house.
–If a house contains more than one independent residen-
tial unit.
If more than one zone is available, the system control con-
trols the available zones.

0020262548_01 Operating instructions 5
3.4 Hybrid manager
If a heat pump and an additional boiler are connected, you
can use the hybrid manager. If there is a heat demand, the
hybrid manager picks the heat generator that is more cost-
efficient. The hybrid manager decides which heat generator
to operate based on the tariffs that are set in relation to the
heat demand.
To ensure that the heat pump and the boiler can work effect-
ively and in synch with one another, the tariffs (→Page 13)
must be set correctly. If the tariffs are set incorrectly, this res-
ults in increased costs.
3.5 Frost protection function
The frost protection function protects the heating installa-
tion and flat from frost damage. The frost protection function
monitors the outdoor temperature.
If the outdoor temperature
–falls below 4 °C, the system control switches the heat
generator on after a frost protection delay time, and
brings the target room temperature to 5 °C.
–rises above 5 °C, the system control does not switch the
heat generator on but monitors the outdoor temperature.
Note
The competent person can set the frost protection
delay time.
3.6 Preventing malfunctions
▶Ensure that room air can circulate freely around the sys-
tem control, and that the system control is not covered by
furniture, curtains or other objects.
▶Ensure that all thermostatic radiator valves in the room
where the system control is fitted are fully open.
3.7 Data plate
The data plate is located inside the product and is not ac-
cessible from the outside.
3.8 Serial number
You can call up the serial number to the display under Menu
→Information →Serial number. The 10-digit article number
is located in the second line.
3.9 CE marking
The CE marking shows that the products comply with the
basic requirements of the applicable directives as stated on
the declaration of conformity.
The declaration of conformity can be viewed at the manufac-
turer's site.
4 Operation
4.1 Operating structure
4.1.1 Adjustment and display levels
The product has two adjustment and display levels.
The end user level contains information and setting options
that you require as the end user.
End user level (→Page 18)
The installer level is reserved for the competent person. It is
protected by a code. Only competent persons may change
any settings in the installer level.
4.1.2 Menu structure design
The menu structure consists of several selection levels and a
setting level.
You can always use the selection button Menu to access
selection level 1 from the basic display.
You can use the selection button Op. mode to directly ac-
cess the setting level Operating mode.
The lowest level is always the setting level.
4.1.3 Selection level
Menu
Information
Desired temperatures
Time programmes
Back Select
1
2
2
3
4
1 Scroll bar
2 Current function of the
selection button
3 List entries on the se-
lection level
4 Current selection level
The scroll bar (1) only appears if there are more list entries
than can be shown at once on the display.
4.1.4 Setting level
ZONE1
Set-back temp. heat.
Day temp. cooling
Day temp. heating
Back Change
20,0°C
26,0°C
15,0°C
2
2
3
1
4
1 Set values
2 Current function of the
selection button
3 Functions on the setting
level
4 Current selection level
You can read or change the set values in the setting level.
4.1.5 Soft key function for the selection buttons
Both selection buttons have a soft key function, i.e. different
functions may be assigned to the selection buttons. If, for ex-
ample, you press the left-hand selection button, the current
function switches from Menu to Back.

6Operating instructions 0020262548_01
4.2 Basic display
Auto 5,0°C
°C
19,5
15:34
Desired heating temp. 20,0°C
Menu Op. mode
1
4
2
3
5
5
7
6
8
1 Symbol for outdoor
temperature
2 Outdoor temperature
3 Time
4 Room temperature (for
wall-mounting only)
5 Current function of the
selection button
6 Information field
7 Symbol for Auto operat-
ing mode
8 Mode for the current
operating mode
The basic display appears:
–If you press the selection button several times.
–If the system control is in a selection level or setting level
and you do not operate the system control for more than
5 minutes.
4.2.1 Preferred zone in the basic display
If your heating installation has several zones, the competent
person sets the zone whose values are to appear in the ba-
sic display.
4.2.2 Preferred operating mode in the basic
display
If your heating installation is designed for two of the three
operating modes (heating, cooling or ventilating), you can
switch the basic display to the required operating mode.
Setting the preferred display (→Page 13)
4.2.3 Information in the basic display
The basic display shows the most important current settings
and values for the heating installation.
Various information may appear in the basic display. This
depends on which operating mode you give preference to in
the basic display and the mode that this operating mode is
in.
4.2.3.1 Basic display for the Heating operating mode
Mode Time
periods
Symbol Information field
Auto On Desired heating temp.
appears:
–The system control
maintains the temper-
ature at the desired
level.
Empty line appears:
–The system control
does not request any
heating energy.
Off
Day
Set-back
off Empty line
4.2.3.2 Basic display for the Cooling operating
mode
Mode Time
periods
Symbol Information field
Auto On Desired cooling temp.
Off Empty line
Day Desired cooling temp.
off Empty line
4.2.3.3 Basic display for the Ventilation operating
mode
Mode Time
periods
Symbol Information field
Auto On Max. vent. stage
Off Max. vent. stage
Day Ventilation stage
Set-back Ventilation stage
4.2.3.4 Basic display for the Manual cooling
advanced function
Mode Time periods Information field
Activated On Desired cooling temp.
Off Empty line
4.3 Operating concept
The system control is operated using two selection buttons
and a rotary knob.
You can use the selection buttons to do the following:
–Navigate through the selection levels and the setting
level in the menu structure.
–Select a set value.
–Confirm a set value.
–Navigate to the operating modes.
–Cancel changing a set value.
You can use the rotary knob to do the following:
–Navigate through the list entries for a selection level.
–Select a selection level or setting level.
–Change a selected set value.
The display shows an element that is highlighted by white
writing on a black background. A flashing, highlighted value
means that you can change the value.
If you do not operate the system control for more than 10
seconds, the background lighting switches off.
If you do not operate the system control during a period of
more than 5 minutes, the basic display appears again.
4.3.1 Using the rotary knob to make settings in the
basic display
If the display shows the basic display, you can use the rotary
knob to change the setting for the desired temperature or
ventilation level.
The setting that you change depends on selecting the pre-
ferred display in the basic display, the selected operating
mode and the set mode for the operating mode.

0020262548_01 Operating instructions 7
4.3.1.1 Desired temperature in the Heating
operating mode
Change desired day temperature
18°C
For 6 hrs: wait 12 s
Permanent: Press OK
OK
Mode Time
periods
Effect
Auto On Switch to another display view with the
request:
–Permanent change to the Day
temp. heating
–Change to the Day temp. heating
for six hours
Off Direct change to the Set-back temp.
heat. for six hours
Day Switch to another display view with the
request:
–Permanent change to the Day
temp. heating
–Change to the Day temp. heating
for six hours
Set-back Direct change to the Set-back temp.
heat. for six hours
off None
4.3.1.2 Desired temperature in the Cooling
operating mode
Mode Time
periods
Effect
Auto On Direct permanent change to the Day
temp. cooling
Off None
Day Direct permanent change to the Day
temp. cooling
off None
4.3.1.3 Ventilation level in the Ventilation operating
mode
Mode Time
periods
Effect
Auto On Direct permanent change to the Max.
vent. stage: Day
Off Direct permanent change to the Max.
vent. stge: Night
Day Direct permanent change to the Max.
vent. stage: Day
Set-back Direct permanent change to the Max.
vent. stge: Night
4.3.1.4 Desired temperature in the Manual cooling
advanced function
Mode Time
periods
Effect
Activated On Direct permanent change to the Day
temp. cooling
Off None
4.3.1.5 Using the rotary knob to make settings with
no effect
You cannot influence the following advanced functions by
turning the rotary knob:
–System OFF active
–Cylinder boost
–Party function
–1 day at home
–Days at home scheduling
–1 day away from home
–Days away from home scheduling
–Ventilation boost
–Screed-drying function
4.3.2 Example, changing the display contrast
Auto 5.0 °C
°C
19.5
15:34
Desired heating temp. 20.0 °C
Menu Operating mode
1. Press the left-hand selection button Back until the ba-
sic display appears in the display.
2. Press the left-hand selection button Menu.
◁The system control switches to selection level 1.
Menu
Information
Desired temperatures
Timer programmes
Back Select
3. Turn the rotary knob until the list entry Basic settings
is highlighted.
Menu
Planning days away from homePlanning days away from home
Days at home scheduling
Basic settingsBasic settings
Back Select
4. Press the right-hand selection button Select.
◁The system control switches to selection level 2.

8Operating instructions 0020262548_01
Basic settings
Language
Date/time
Display
Back Select
5. Turn the rotary knob until the list entry Display is high-
lighted.
Basic settings
LanguageLanguage
Date/timeDate/time
Display
Back Select
6. Press the right-hand selection button Select.
◁The system control switches to setting level
Display. The adjustable value for the Display
contrast is highlighted.
Display
Display contrast
Button lock
9
Back Change
7. Press the right-hand selection button Change.
◁The highlighted value flashes.
Display
Display contrast
Button lock
9
Cancel OK
8. Turn the rotary knob to change the value.
Display
Display contrast
Button lock
12
Cancel OK
9. Press the right-hand selection button OK to confirm the
change.
◁The system control has saved the changed value.
10. Press the left-hand selection button Back repeatedly to
go back to the basic display.
5 Operating and display functions
Note
The functions described in this section are not
available for all system configurations.
Overview of operating modes and the end user
level
Operating modes (→Page 18)
End user level (→Page 18)
The path details given at the start of each function descrip-
tion indicate how you reach this function in the menu struc-
ture.
The description of the functions for ZONE1 also applies for
all available zones.
5.1 Information
5.1.1 Reading the system status
Menu →Information →System status
–Under System status, there is a list containing inform-
ation that provides an overview of the current system
status, and current settings that you can change there.
5.1.1.1 System
Menu →Information →System status →Fault status
–If no maintenance is required and no faults have oc-
curred, the value No fault appears for Fault status.
If maintenance is required or a fault has occurred, the
value Fault list is shown for Fault status. In this case,
the right-hand selection button is for the Display function.
If you press the right-hand selection button Display, the
list of fault messages appears on the display.
Menu →Information →System status →Green IQ
–You can use the function if the connected heat generator
Green IQ is capable of this.
On: The operating mode controls the heat generator in the
heating and cylinder charging mode so that a maximum
gross calorific value utilisation is achieved.
Off: The operating mode is switched off.
Menu →Information →System status →Water pressure
–You can use this function to read the water pressure of
the heating installation.
Menu →Information →System status →System status
–You can use this function to read the heating installa-
tion's operating mode.
–Standby: The heating installation has no heat demand
and is in standby.
–Heat. mode: The heating installation heats the living
rooms to the Desired heating temp..
–Cooling: The heating installation cools the living rooms
to the Desired cooling temp..
–DHW: The heating installation heats the domestic hot wa-
ter in the cylinder to the desired temperature Domestic
hot water.
Menu →Information →System status →Collector temp.
–You can use this function to read the current temperature
on the collector temperature sensor.

0020262548_01 Operating instructions 9
Menu →Information →System status →Solar yield
–You can use this function to read the total solar yield.
Note the contents of the section Display for energy con-
sumption and energy yield (→Page 9).
Menu →Information →System status →Reset solar yield
–If you select the Yes setting in the Reset solar yield
function and press the right-hand selection button OK,
you reset the previously totalled solar yield to 0 kWh.
Menu →Information →System status →Environmental
yield
–You can use this function to read the total environment
yield.
Note the contents of the section Display for energy con-
sumption and energy yield (→Page 9).
Menu →Information →System status →Reset env.yield
–If you select the Yes setting in the Reset env.yield func-
tion and press the right-hand selection button OK, you re-
set the previously totalled environmental yield to 0 kWh.
Menu →Information →System status →Curr. room air
hum.
–You can use this function to read the current room air
humidity. The room air humidity sensor is installed in the
system control.
Menu →Information →System status →Current dew
point
–You can use this function to read the current dew point.
The dew point indicates the temperature at which the
water vapour in the air condenses and settles on objects.
Menu →Information →System status →triVAI
–You can use this function to read whether the heat pump
or the back-up boiler (gas, oil or electricity) is currently
covering the heat demand. The energy manager uses
the triVAI and the comfort criteria to decide which heat
generator to use.
If the value that is read is greater than 1, the heat pump is
better at covering the heat demand than the back-up boiler.
5.1.1.2 ZONE1
Menu →Information →System status →Day temp. heat-
ing
–You can use this function to set the desired day temper-
ature for the zone.
Day temp. heating is the temperature that you want to have
in the rooms during the day or when you are at home.
Menu →Information →System status →Day temp. cool-
ing
–You can use this function to set the desired day temper-
ature for the zone.
Day temp. cooling is the temperature that you want to have
in the rooms during the day or when you are at home.
Menu →Information →System status →Set-back temp.
heat.
–You can use this function to set the desired set-back
temperature for the zone.
Set-back temp. heat. is the temperature that you want to
have in the rooms during the night or when you are away
from home (night mode).
Menu →Information →System status →Room temperat-
ure
–If the system control is installed outside of the heat gen-
erator, you can read the current room temperature.
The system control has an integrated temperature sensor,
which determines the room temperature.
5.1.1.3 Ventilation
Menu →Information →System status →Air quality
sensor 1/2
–You can use this function to read the measured values
from the air quality sensor.
Menu →Information →System status →Exhaust air hu-
midity
–You can use this function to read the extract air moisture
in the ventilation unit's ventilation duct.
5.1.2 Display of energy consumption and energy
yield
In the display and in the app that can also be used, the con-
trol displays values for the energy consumption and/or the
energy yield.
The control displays an estimation of the values for the in-
stallation. Among other things, the values are influenced by
the following:
–The installation/design of the heating installation
–User behaviour
–Seasonal environmental conditions
–Tolerances and components
External components, such as external heating pumps or
valves, and other consumers and appliances in the house-
hold are still not taken into consideration.
The deviations between the energy consumption or energy
yield that is displayed and the actual energy consumption or
energy yield may be significant.
The specifications for the energy consumption or energy
yield are not suitable to be used to create or compare energy
billing.
5.1.2.1 Consumption
Some components do not support the calculation of con-
sumption, the total of which is shown on the display. In the
instructions for the components, you can find out if and how
the individual components determine the consumption.
Menu →Information →Consumption →Current month →
Heating →Electricity
–You can use this function to read the total power con-
sumption for heating in the current month.
Menu →Information →Consumption →Current month →
Heating →Fuel
–You can use this function to read the total fuel consump-
tion in kWh for heating in the current month.
Menu →Information →Consumption →Current month →
Hot water →Electricity
–You can use this function to read the total power con-
sumption for domestic hot water in the current month.
Menu →Information →Consumption →Current month →
Hot water →Fuel

10 Operating instructions 0020262548_01
–You can use this function to read the total fuel consump-
tion in kWh for domestic hot water in the current month.
Menu →Information →Consumption →Last month →
Heating →Electricity
–You can use this function to read the total power con-
sumption for heating in the last month.
Menu →Information →Consumption →Last month →
Heating →Fuel
–You can use this function to read the total fuel consump-
tion in kWh for heating in the last month.
Menu →Information →Consumption →Last month →Hot
water →Electricity
–You can use this function to read the total power con-
sumption for domestic hot water in the last month.
Menu →Information →Consumption →Last month →Hot
water →Fuel
–You can use this function to read the total fuel consump-
tion in kWh for domestic hot water in the last month.
Menu →Information →Consumption →History →Heating
→Electricity
–You can use this function to read the total power con-
sumption for heating since start-up.
Menu →Information →Consumption →History →Heating
→Fuel
–You can use this function to read the total fuel consump-
tion in kWh for heating since start-up.
Menu →Information →Consumption →History →Hot wa-
ter →Electricity
–You can use this function to read the total power con-
sumption for domestic hot water since start-up.
Menu →Information →Consumption →History →Hot wa-
ter →Fuel
–You can use this function to read the total fuel consump-
tion in kWh for domestic hot water since start-up.
5.1.2.2 Diagram: Reading the solar yield
Menu →Information →Solar yield
–The diagram under Solar yield shows a comparison of
the monthly solar yields between the previous and the
current year.
The total yield is displayed on the bottom right. The highest
value achieved in one month for the last two years is dis-
played in the top right.
5.1.2.3 Diagram: Reading the environmental yield
Menu →Information →Environmental yield
–The diagram under Environmental yield shows a com-
parison between the monthly environmental yields for the
previous year and for the current year.
The total yield is displayed on the bottom right. The highest
value achieved in one month for the last two years is dis-
played in the top right.
5.1.2.4 Diagram: Reading the electrical
consumption
Menu →Information →Electrical consumption
–The diagram under Electrical consumption shows a
comparison between the monthly consumption of electri-
city for the previous year and for the current year.
The total yield is displayed on the bottom right. The highest
value achieved in one month for the last two years is dis-
played in the top right.
5.1.2.5 Diagram: Reading the fuel consumption
Menu →Information →Fuel consumption
–The diagram below Fuel consumption shows a compar-
ison between the monthly fuel consumption for the previ-
ous year and for the current year.
The total yield is displayed on the bottom right. The highest
value achieved in one month for the last two years is dis-
played in the top right.
5.1.2.6 Diagram: Reading the heat recovery yield
Menu →Information →Heat recovery
–The diagram under Heat recovery shows a comparison
between the monthly heat recovery yield for the previous
year and for the current year.
The total yield is displayed on the bottom right. The highest
value achieved in one month for the last two years is dis-
played in the top right.
5.1.3 Read competent person contact details
Menu →Information →Contact details
–If the competent person entered their company name and
telephone number when they installed the product, you
can read this data under Contact details.
5.1.4 Reading the serial number and article
number
Menu →Information →Serial number
–You can use this function to read the product's serial
number. The article number is found in the second line.
5.2 Settings
5.2.1 Setting desired temperatures
This function is used to set the desired temperatures for the
zone and domestic hot water generation.
5.2.1.1 Zone
Menu →Desired temperatures →ZONE1
–You can set different desired temperatures for the zone:
Heating
–Day temp. heating: Set a comfortable room temperature
in the living rooms.
–Set-back temp. heat.: Set a low room temperature at
which the living rooms do not cool down.
Cooling
–Day temp. cooling: Set a comfortable room temperature
in the living rooms.

0020262548_01 Operating instructions 11
5.2.1.2 Hot water generation
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶Have a competent person inform you
about the measures that should be taken
to protect against Legionella in your in-
stallation.
▶Do not set any water temperatures below
60 °C without consulting the competent
person first.
Menu →Desired temperatures →Domestic hot water
–You can set the desired Domestic hot water temperat-
ure for the domestic hot water circuit.
If a heat pump is connected and you have set the desired
temperature to above 55 °C, it may be the case that it is the
back-up boiler that predominantly takes on the task of sup-
plying domestic hot water.
5.2.2 Setting the ventilation level
Menu →Ventilation stage
–You can use this function to set how quickly the used
room air is replaced with fresh outdoor air.
Max. vent. stage: Day: The ventilation guarantees quick
exchange of air.
Max. vent. stge: Night: The ventilation guarantees a re-
duced air change.
5.2.3 Time programme
You can use the time programme to switch the system con-
trol between two implemented settings at specified times.
To do this, create the required time periods in the time pro-
gramme.
Setting the Heating time programme (→Page 12)
Setting the Cooling time programme (→Page 12)
Setting the domestic hot water circuit time programme
(→Page 12)
Setting the Circulation time programme (→Page 12)
Setting the Ventilation time programme (→Page 12)
Setting the High tariff time programme (→Page 12)
You can create up to three time periods for each individual
day and for predefined blocks (Monday - Friday,Saturday -
Sunday,Monday - Sunday).
When entering time periods for individual days or blocks, the
last information that was entered always applies.
If you have not set any time periods, the system control uses
the time periods set in the factory settings.
Note
Once time programmes are set, they are retained
even if there is a loss of voltage.
5.2.3.1 Heating operating mode example: Time
period for a day
18:0016:30 22:30
16 °C
21 °C
20:00
A
B
1
3
1
4
2 2
A Time
B Temperature
1Day temp. heating
2Set-back temp. heat.
3 Time period 1
4 Time period 2
You can specify the temperatures (Day temp. heating and
Set-back temp. heat.) in the Setting the Desired temperat-
ures (→Page 10) function.
You can specify the times for the time periods in the Setting
time programmes Heating (→Page 12) function.
Day temp. heating: 21 °C
Set-back temp. heat.: 16 °C
Period 1: 16:30–18:00
Period 2: 20:00–22:30
Within the time periods, the system control maintains the
room temperature at the set Day temp. heating.
Outside of the time periods, the system control maintains the
room temperature at the set Set-back temp. heat..
5.2.3.2 Setting time programmes quickly
If, for example, you require different time periods for just
one working day in the week, first set the times for the entire
block Monday - Friday. Then set the different time period for
the working day.
5.2.3.3 Displaying and changing different times in
the block
Monday - Sunday
Period 1:
Period 2:
Period 3:
!! : !! - !! : !!
!! : !! - !! : !!
!! : !! - !! : !!
Back Select
If you view a block in the display and have defined a different
time period for a day in this block, the display indicates the
time periods in the block with !!.

12 Operating instructions 0020262548_01
Individual dates vary from
the selected time programme
Mo-Su.
OKBack
If you press the right-hand selection button Select, a mes-
sage appears on the display which informs you about differ-
ent time periods. You do not need to adjust the times.
You can use the right-hand selection button OK to display
and change the set times for the block marked with !!.
5.2.3.4 Setting the Heating time programme
Menu →Time programmes →ZONE1
–The time programmes are only effective for the Heat-
ing operating mode in automatic mode. Within the time
periods, the system control brings the temperature of
the connected rooms to the set desired temperature Day
temp. heating. Outside of these time periods, the sys-
tem control switches to the operating mode that the com-
petent person has set: Eco or Set-back temp. heat.. If
the competent person has left the factory setting Eco, the
system control switches off the heating function.
Setting the Heating operating mode. (→Page 14)
5.2.3.5 Setting the Cooling time programme
Menu →Time programmes →ZONE1:Cooling
–The time programmes are only effective in the Cooling
mode and the Manual cooling advanced function. In
each set time period, the desired temperature that you
set in the Desired temperatures function applies. Within
the time periods, the zone cools the living areas to the
desired Day temp. cooling temperature. Outside this
time period, there is no cooling.
5.2.3.6 Setting the domestic hot water generation
time programme
Menu →Time programmes →DHW circuit
–The time programmes are only effective for domestic hot
water generation in automatic mode. In each set time
period, the desired Domestic hot water temperature
applies. At the end of a time period, the system control
switches the domestic hot water generation off until the
start of the next time period.
5.2.3.7 Setting the time programme Circulation
Menu →Time programmes →Circulation
–The time programmes are only effective for circulation
in Automatic mode. The set time periods determine the
operating times for circulation. Within the time period, the
circulation is switched on. Outside the time period, the
circulation is switched off.
5.2.3.8 Setting the Ventilation time programme
Menu →Time programmes →Ventilation
–The time programmes are only effective for ventilation
in automatic mode. In each set time period, the ventila-
tion level that you set in the Ventilation function applies.
Within the time period, the system control regulates the
ventilation unit to Max. vent. stage: Day as a maximum.
Outside the time period, the system control regulates the
ventilation unit to Max. vent. stge: Night as a maximum.
5.2.3.9 Setting the High tariff time programme
Menu →Time programmes →High tariff
–You can use this function to set when the high tariff or the
low tariff should be used to calculate the costs.
Within the time period: For the high tariff
Outside of the time period: For the low tariff
The times of high tariff depend on your energy supply com-
pany.
If the energy supply company only offers one tariff, you do
not need to set any time periods. The cost for the electricity
is calculated using one tariff.
Setting costs (→Page 13)
5.2.4 Days away from home scheduling
Menu →Days away from home scheduling
–You can use this function to set a period of time and a
temperature for the days that you are away from home.
Heating installation operation during the set time
period
–The domestic hot water is not being heated.
–The previously set temperature applies for all zones.
–The ventilation runs at the lowest ventilation level.
–The cooling is switched off.
While the Days away from home scheduling function is
activated, it has priority over the set operating mode. At the
end of the specified period, or if you cancel the function, the
heating installation returns to the pre-set mode.
5.2.5 Day at home scheduling
Menu →Days at home scheduling
–In the specified period, the heating installation works in
the Automatic mode mode and uses the day settings for
Sunday, which were set using the Time programmes
function. At the end of the specified period, or if you can-
cel the function, the heating installation returns to the pre-
set mode.
5.2.6 Select language
Menu →Basic settings →Language
–You can use this function to change to the language that
you want to appear in the display.

0020262548_01 Operating instructions 13
5.2.6.1 Setting your language
1. Press the left-hand selection button repeatedly until the
basic display appears.
2. Press the left-hand selection button again.
3. Rotate the rotary knob clockwise until the dotted line
appears.
4. Turn the rotary knob anti-clockwise until the second list
entry above the dotted line is highlighted.
5. Press the right-hand selection button twice.
6. Turn the rotary knob until you find a language that you
understand.
7. Press the right-hand selection button.
5.2.7 Setting the date and time
Note
If you disconnect the entire heating installation
from the power supply, the time continues to run
correctly for 30 minutes. You then have to reset
the date and time.
5.2.7.1 Setting the date
Menu →Basic settings →Date/time →Date
–Select this function to set the current date. All functions
that contain a date relate to the set date.
5.2.7.2 Setting the time
Menu →Basic settings →Date/time →Time
–Select this function to set the current time. All functions
that contain a time relate to the set time.
5.2.8 Activating the automatic or manual change-
over to daylight saving time
Menu →Basic settings →Date/time →Daylight saving
time
–You can use this function to set whether the system con-
trol automatically changes over to daylight saving time, or
whether you want to do this manually.
–Auto: The system control automatically changes over
to daylight saving time. The system control uses Central
European Summer Time: Start = last Sunday in March,
end = last Sunday in October.
–Manual: You have to manually change over to daylight
saving time.
If the outdoor temperature sensor is equipped with a DCF77
receiver, the time is changed over automatically. This Day-
light saving time function is not used.
5.2.9 Set display contrast
Menu →Basic settings →Display →Display contrast
–You can use this function to set the display contrast in
relation to the brightness of the surroundings to ensure
that the display is clearly legible.
5.2.10 Activating Button lock
Menu →Basic settings →Display →Button lock
–You can use this function to activate the button lock. After
one minute of not pressing any button or operating the
rotary knob, the button lock is active and you can no
longer change any functions unintentionally.
Each time you actuate the system control, the following mes-
sage appears in the display Button lock active To unlock,
press OK for 3 seconds. If you press and hold the OK but-
ton for three seconds, the basic display appears and you can
change functions. The button lock becomes active again if
you do not press any button or operate the rotary knob for
one minute.
To permanently remove the button lock, you must first re-
lease the button lock and then select the value off in the
Button lock function.
5.2.11 Setting the preferred display
Menu →Basic settings →Display →Preferred display
–You can use this function to choose whether you see
the data for heating, cooling or ventilation in the basic
display.
5.2.12 Setting costs
You must specify all tariffs in the unit of currency per kWh for
the calculation to be correct.
If the tariffs are in the unit of currency per m3for you, request
that your energy supply company provides the required tar-
iffs in the unit of currency per kWh.
If your energy supply company only offers one electricity
tariff, enter the same value for the High-tariff elec. rate
(→Page 14) and Low-tariff elec. rate (→Page 14) func-
tions.
Round the tariff data up or down to one decimal point. To
establish the factor that is to be set, multiply the value by 10.
Example:
Costs Factor to be set
Tariff for aux.
heater
(Gas, oil, electricity)
11.3 currency
units/kWh
113
Low-tariff elec. rate
(heat pump)
14.5 currency
units/kWh
145
High-tariff elec. rate
(heat pump)
18.7 currency
units/kWh
187
5.2.12.1 Setting the tariff for the back-up boiler
Menu →Basic settings →Costs →Tariff for aux. heater
–The hybrid manager can use this function to correctly
calculate the costs for the back-up boiler. To do this, the
hybrid manager requires the factor that is to be set.
In order to enter the correct factor, you must request the tariff
from your energy supply company and calculate the factor in
accordance with the example.

14 Operating instructions 0020262548_01
5.2.12.2 Setting the low-tariff electricity rate
Menu →Basic settings →Costs →Low-tariff elec. rate
–The hybrid manager can use this function to correctly
calculate the costs for the back-up boiler. To do this, the
hybrid manager requires the factor that is to be set.
In order to enter the correct factor, you must request the tariff
from your energy supply company and calculate the factor in
accordance with the example.
5.2.12.3 Setting the high-tariff electricity rate
Menu →Basic settings →Costs →High-tariff elec. rate
–The hybrid manager can use this function to correctly
calculate the costs for the back-up boiler. To do this, the
hybrid manager requires the factor that is to be set.
In order to enter the correct factor, you must request the tariff
from your energy supply company and calculate the factor in
accordance with the example.
5.2.13 Set offset room temperature
Menu →Basic settings →Offset →Room temperature
–The system control can display the current room temper-
ature if it is installed in a living room.
A thermometer is integrated in the system control for meas-
uring the room temperature. You can use the offset to cor-
rect the measured temperature value.
5.2.14 Set offset outdoor temperature
Menu →Basic settings →Offset →Outside temperature
–The thermometer in the system control's outdoor temper-
ature sensor measures the outdoor temperature. You can
use the offset to correct the measured temperature value.
5.2.15 Changing a zone name
Menu →Basic settings →Enter zone name
–You can now modify the factory-set zone names as you
wish. The name is limited to 10 characters.
5.2.16 Activating Heat recovery
Menu →Basic settings →Ventilation →Heat recovery
–The Heat recovery function is set to Auto. This means
that an internal control system checks whether heat re-
covery makes sense, or whether the outdoor air can be
guided directly into the living room. For more information,
see the operating instructions for recoVAIR.../4 and later
models.
If you have selected Activate, heat recovery is used con-
stantly.
5.2.17 Setting the room air humidity
Menu →Basic settings →Max. room air humidity
–If the room air humidity exceeds the value set, a connec-
ted dehumidifier is activated. As soon as the value drops
below the value that is set, the dehumidifier switches off
again.
5.2.18 Resetting to default setting
You can reset the settings for the Time programmes or for
Everything to the default setting.
Menu →Basic settings →Default setting →Time pro-
grammes
–With Time programmes, you reset all the settings you
have made in the Time programmes function to the
default setting. All other settings that include times, such
as Date/time, are not affected.
While the system control is resetting the time programme
settings to the default settings, In progress is shown on the
display. The basic display is then shown on the display.
Caution.
Risk of a malfunction.
The Default setting Everything function
restores all settings to the default settings,
including those set by the competent person.
It may be the case that it is no longer possible
to operate the heating installation after this.
▶Arrange for the competent person to reset
all settings to factory settings.
Menu →Basic settings →Default setting →Everything
–While the system control is restoring the factory settings,
Reset to default setting In progress is shown in the
display. The installation assistant is then shown in the
display; it must only be operated by a competent person.
5.2.19 Installer level
The Installer level is reserved for the competent person and
is therefore protected by an access code. At this level, the
competent person can implement the required settings.
5.3 Operating modes
The operating modes can be activated directly from any
operating mode using the right-hand selection button Op.
mode. If the heating installation is equipped with more than
one zone, the activated operating mode only applies for the
zone that was preset by the competent person.
If more than one zone is activated, you can set a separate
operating mode for each zone using the left-hand selection
button Menu→Basic settings.
The path details given at the start of each operating mode
description indicate how you reach this operating mode in
the menu structure.
5.3.1 Setting the Heating operating mode
Op. mode →Heating
Menu →Basic settings →Operating mode →ZONE1 →
Heating
–You can use this function to specify how the heating in-
stallation should operate during heating.
off: The zone is switched off in this operating mode and the
frost protection function is activated.
Auto: The operating mode brings the zone to the desired
temperature set for Day temp. heating in the time periods
that you have set in the time programme.
Outside these time periods, the system control regulates the
control behaviour set by the competent person.
–Eco The heating function is switched off and the system
control monitors the outdoor temperature. If the outdoor
temperature falls below 3 °C, the system control switches

0020262548_01 Operating instructions 15
the heating function on after the end of the frost protec-
tion delay time and brings the room temperature to the
set desired temperature Set-back temp. heat.. Despite
the heating function being activated, the burner is only
active on demand. If the outdoor temperature rises above
4 °C, the system control switches the heating function off,
but continues to monitor the outdoor temperature.
–Set-back: The heating function is switched on and the
system control brings the room temperature to the set
desired temperature Set-back temp. heat..
Day: The operating mode brings the zone to the desired
temperature Day temp. heating, regardless of the time peri-
ods that you have set in the time programme.
Set-back: The operating mode brings the zone to the de-
sired temperature Set-back temp. heat., regardless of the
time periods that you have set in the time programme.
5.3.2 Setting the Cooling operating mode
Op. mode →Cooling
Menu →Basic settings →Operating mode →ZONE1 →
Cooling
–You can use this function to specify how the heating in-
stallation should operate during cooling.
off: The zone is switched off in this operating mode.
Auto: The operating mode brings the zone to the desired
temperature Day temp. cooling in the time periods that you
have set in the time programme. Outside these time periods,
the Cooling function is switched off.
Day: The operating mode brings the zone to the desired
temperature set for Day temp. cooling, regardless of the
time periods that you have set in the time programme.
5.3.3 Setting the Ventilation operating mode
The operating instructions for the ventilation unit explain how
the ventilation unit works with the ventilation levels.
Op. mode →Ventilation
–You can use this function to define how the ventilation
unit operates during ventilation.
Auto: The operating mode controls the air exchange via
the set ventilation level Max. vent. stage: Day in the set
time periods that you have defined in the time programme.
The set ventilation level Max. vent. stge: Night is effective
outside of the time periods.
If air-quality sensors are connected to the ventilation unit, the
ventilation unit varies the ventilation levels:
–If the air quality is good, the ventilation unit works at a
lower ventilation level than the one that is set.
–If the air quality is poor, the ventilation unit works at a
higher ventilation level. However, the ventilation unit can-
not exceed the Max. vent. stage: Day and Max. vent.
stge: Night ventilation levels that are set.
Day: The operating mode constantly controls the exchange
of air using the value that you set in the Max. vent. stage:
Day ventilation level.
Set-back: The operating mode constantly controls the ex-
change of air using the value that you set in the Max. vent.
stge: Night ventilation level.
5.3.4 Setting the operating mode for domestic hot
water generation
Op. mode →Domestic hot water
–You can use this function to specify how the heating in-
stallation should operate during domestic hot water gen-
eration.
off: Domestic hot water generation is switched off and the
frost protection function is activated.
Auto: The operating mode brings the domestic hot water
generation to the desired temperature set for Domestic hot
water in the time periods that you have set in the time pro-
gramme.
Day: The operating mode brings the domestic hot water gen-
eration to the desired temperature set for Domestic hot wa-
ter, regardless of the time periods that you have set in the
time programme.
5.3.5 Operating mode for circulation
The operating mode for circulation always corresponds to
the operating mode for hot water. You cannot set a different
operating mode.
5.4 Advanced functions
The advanced functions can be activated directly from any
operating mode using the right-hand selection button Op.
mode. If the heating installation is equipped with more than
one zone, the activated advanced function only applies for
the zone that was preset by the competent person.
If more than one zone is activated, you can set a separate
advanced function for each zone using the left-hand selec-
tion button Menu →Basic settings.
The path details given at the start of each advanced function
description indicate how you can access this advanced func-
tion in the menu structure.
5.4.1 Activating manual cooling
Op. mode →Manual cooling
–If the outdoor temperature is high, you can activate the
Manual cooling advanced function. You define for how
many days you want to activate the advanced function. If
you activate Manual cooling, you cannot use the heating
function at the same time. The Manual cooling function
takes priority over the heating function.
The setting applies for as long as the advanced function is
active. The advanced function is deactivated if the days that
are set have elapsed or if the outdoor temperature falls be-
low 4 °C.
If you want to set the temperature separately for more than
one zone, you can set these temperatures using the Desired
temperatures function.
5.4.2 Activating 1 day at home
Op. mode →1 day at home
Menu →Basic settings →Operating mode →ZONE1 →1
day at home
–The 1 day at home advanced function activates the
automatic mode in the operating mode Heating with the
settings for the Sunday.
The advanced function is automatically deactivated after
00:00 (midnight) or you can cancel the advanced function

16 Operating instructions 0020262548_01
first. The heating installation then returns to the pre-set oper-
ating mode.
5.4.3 Activating 1 day away from home
Op. mode →1 day away from home
Menu →Basic settings →Operating mode →ZONE1 →1
day away from home
–The 1 day away from home advanced function brings
the room temperature to the desired Set-back temperat-
ure.
Domestic hot water generation and circulation are switched
off and the frost protection is activated.
Ventilation is activated and works at the lowest ventilation
level.
The advanced function is automatically deactivated after
00:00 (midnight) or you can cancel the advanced function
first. The heating installation then returns to the pre-set oper-
ating mode.
5.4.4 Activating Ventilation boost
Op. mode →Ventilation boost
Menu →Basic settings →Operating mode →ZONE1 →
Ventilation boost
–This Ventilation boost advanced function switches the
zone off for 30 minutes.
The frost protection function is activated, and domestic hot
water generation and circulation remain active.
Ventilation is activated and works at the highest ventilation
level.
The advanced function is automatically deactivated after 30
minutes or you can cancel the advanced function first. The
heating installation will then return to the pre-set operating
mode.
5.4.5 Activating Party function
Op. mode →Party function
Menu →Basic settings →Operating mode →ZONE1 →
Party function
–The advanced function regulates the room temperature
to the desired Day temperature, the domestic hot water
to the desired Domestic hot water temperature and the
ventilation to ventilation level Max. vent. stage: Day in
accordance with the set time periods. The circulation is
activated.
The advanced function is automatically deactivated after six
hours or you can cancel the advanced function first. The
heating installation will then return to the pre-set operating
mode.
5.4.6 Activating Cylinder boost
Op. mode →Cylinder boost
–The Cylinder boost advanced function heats the water
in the domestic hot water cylinder until it reaches the set
desired temperature Domestic hot water.
The advanced function is active for one hour unless you can-
cel it sooner. The heating installation then returns to the pre-
set operating mode.
5.4.7 Activating System OFF active
Op. mode →System OFF active
–The System OFF active advanced function switches off
the heating function, the domestic hot water circuit, the
circulation and the cooling. The frost protection function
is activated.
Ventilation is activated and works at the lowest ventilation
level.
The advanced function is deactivated by cancelling the ad-
vanced function. The heating installation will then return to
the pre-set mode.
5.5 Messages
5.5.1 Maintenance message
Maintenance messages (→Appendix C)
If maintenance is required, the system control displays a
maintenance message in the display.
To prevent the heating installation from breaking down and
to prevent damage, you must pay attention to the mainten-
ance message:
▶Observe the operating instructions for the unit shown.
▶Only carry out the maintenance instructions that are de-
scribed in the operating instructions for the unit shown.
▶For all other maintenance instructions, inform the com-
petent person.
5.5.2 Fault message
Fault messages (→Appendix B)
A fault message with fault code (e.g. F.33) and the affected
heat generator appear in the system control's display.
▶Press the Reset selection button.
–Heat generator fault clearance? appears in the
display.
▶Press the OK selection button.
–Faults are cleared for the heat generator briefly
appears in the display.
▶If the fault persists, inform the competent person.
If you would like to see the basic display on the display
again, press the left-hand selection button Back.
You can read the current fault messages under Menu →In-
formation →System status →Fault status. As soon as a
fault message occurs for the heating installation, the setting
level displays the value Fault list. The right-hand selection
button has been assigned the Display function.
6 Troubleshooting
Troubleshooting faults (→Appendix B)

0020262548_01 Operating instructions 17
6.1 Implementing the setting if the heat pump
fails
If the fault message Restricted operation/ comfort pro-
tection Inactive appears on the display, the heat pump has
failed and the system control enters limp home mode. The
back-up boiler now supplies the heating installation with
heating energy. During installation, the competent person
has restricted the temperature for limp home mode. You can
feel that the domestic hot water and heating are not becom-
ing very hot.
While you wait for the competent person to come, you can
use the rotary knob to implement the following settings:
Inactive: The system control works in limp home mode;
heating and domestic hot water become moderately hot.
Heating: The back-up boiler takes over the heating mode;
the heating becomes hot, the domestic hot water is cold.
DHW: The back-up boiler takes over the domestic hot water
mode; the domestic hot water becomes hot, the heating is
cold.
DHW+heat.: The back-up boiler takes over the heating and
domestic hot water mode; the heating and the domestic hot
water become hot.
The back-up boiler is not as efficient as the heat pump,
meaning that using only the back-up boiler to generate heat
is expensive.
If you want to implement settings on the system control, click
Back and the basic display appears in the display. After five
minutes of no operation, the fault message appears again in
the display.
7 Care
7.1 Caring for the product
▶Clean the casing with a damp cloth and a little solvent-
free soap.
▶Do not use sprays, scouring agents, detergents, solvents
or cleaning agents that contain chlorine.
8 Decommissioning
8.1 Decommissioning the product
If you want to replace or remove the product, you must de-
commission the heating installation.
▶This work should be carried out by a competent person.
8.2 Recycling and disposal
▶Observe the recycling and disposal information in the
installation instructions.
9 Guarantee and customer service
9.1 Guarantee
We only grant a Vaillant manufacturers warranty if a suitably
qualified engineer has installed the system in accordance
with Vaillant instructions. The system owner will be granted
a warranty in accordance with the Vaillant terms and condi-
tions. All requests for work during the guarantee period must
be made to Vaillant Service Solutions.
9.2 Customer service
For contact details for our customer service department, you
can write to the address that is provided on the back page,
or you can visit www.vaillant.co.uk.
10 Technical data
10.1 Product data in accordance with EU
Ordinance no. 811/2013, 812/2013
On units with integrated weather-compensated controls, in-
cluding a room thermostat function that can be activated, the
seasonal room-heating efficiency always includes the cor-
rection factor for control technology class VI. The seasonal
room-heating efficiency may deviate if this function is deac-
tivated.
Temperature control class VI
Contribution to the seasonal room-heat-
ing energy efficiency ɳs 4.0 %

18 Operating instructions 0020262548_01
Appendix
A Overview of the operating and display functions
Note
The functions and operating modes listed are not available for all system configurations.
A.1 Operating modes
Operating mode Setting Default setting
Operating mode
Heating off,Auto,Day,Set-back Auto
Cooling off,Auto,Day Auto
Ventilation Auto,Day,Set-back Auto
Domestic hot water off,Auto,Day Auto
Advanced functions
Manual cooling active –
1 day at home active –
1 day away from home active –
Ventilation boost active –
Party function active –
Cylinder boost active –
System OFF active active –
A.2 End user level
The description of the functions for ZONE1 also applies for all available zones.
Setting level Values Unit Increment, select Default setting
Min. Max.
Information →System status →
System ----
Fault status Current value No fault,Fault list
Green IQ Off,On On
Water pressure Current value bar
System status Current value Standby,Heat. mode,Cool-
ing,DHW
Burner Current value On,off
Collector temp. Current value ℃
Solar yield Current value kWh
Reset solar yield Yes,No No
Environmental yield Current value kWh
Reset env.yield Yes,No No
Curr. room air hum. Current value %
Current dew point Current value ℃
triVAI Current value
ZONE1 ----
Day temp. heating 5 30 ℃0.5 20
Day temp. cooling 15 30 ℃0.5 24
Set-back temp. heat. 5 30 ℃0.5 15
Room temperature Current value ℃
Ventilation ----
Air quality sensor 1 Current value ppm
Air quality sensor 2 Current value ppm

0020262548_01 Operating instructions 19
Setting level Values Unit Increment, select Default setting
Min. Max.
Exhaust air humidity Current value %rel
Information →Consumption →Current month →
Heating ----
Electricity Total value for the
current month
kWh
Fuel Total value for the
current month
kWh
Hot water ----
Electricity Total value for the
current month
kWh
Fuel Total value for the
current month
kWh
Information →Consumption →Last month →
Heating ----
Electricity Total value for the last
month
kWh
Fuel Total value for the last
month
kWh
Hot water ----
Electricity Total value since start-
up
kWh
Fuel Total value since start-
up
kWh
Information →Consumption →History →
Heating ----
Electricity Total value since start-
up
kWh
Fuel Total value since start-
up
kWh
Hot water ----
Electricity Total value since start-
up
kWh
Fuel Total value since start-
up
kWh
Information →Solar yield →
Bar chart Previous year to cur-
rent year comparison
kWh/month
Information →Environmental yield →
Bar chart Previous year to cur-
rent year comparison
kWh/month
Information →Electrical consumption →
Bar chart Previous year to cur-
rent year comparison
kWh/month
Information →Fuel consumption →
Bar chart Previous year to cur-
rent year comparison
kWh/month
Information →Heat recovery →

20 Operating instructions 0020262548_01
Setting level Values Unit Increment, select Default setting
Min. Max.
Bar chart Previous year to cur-
rent year comparison
kWh/month
Information →Contact details →
Installer Phone number Current values
Information →Serial number
Product number Permanent value
Desired temperatures →ZONE1 →
Day temp. heating 5 30 ℃0.5 20
Day temp. cooling 15 30 ℃0.5 24
Set-back temp. heat. 5 30 ℃0.5 15
Desired temperatures →Domestic hot water →
Domestic hot water 35 70 ℃1 60
Ventilation stage →
Max. vent. stage: Day Depending on the
ventilation unit
1 Depending on the
ventilation unit
Max. vent. stge: Night Depending on the
ventilation unit
1 Depending on the
ventilation unit
Time programmes →ZONE1 (Heating) →
Time programmes →ZONE1:Cooling →
Time programmes →Circulation →
Time programmes →Ventilation →
Individual days and blocks Monday,Tuesday,Wednes-
day,Thursday,Friday,Sat-
urday,Sunday and Monday
- Friday,Saturday - Sunday,
Monday - Sunday
Mo - Fr: 06:00-
22:00
Sa: 07:30-23:30
Su: 07:30-22:00
Period 1: Start –End
Period 2: Start –End
Period 3: Start –End
00:00 24:00 h:min 00:10
Time programmes →Domestic hot water →
Individual days and blocks Monday,Tuesday,Wednes-
day,Thursday,Friday,Sat-
urday,Sunday and Monday
- Friday,Saturday - Sunday,
Monday - Sunday
Mo to Fr: 05:30-
22:00
Sa: 07:00-23:30
Su: 07.00-22.00
Period 1: Start –End
Period 2: Start –End
Period 3: Start –End
00:00 24:00 h:min 00:10
Time programmes →High tariff →
Individual days and blocks Monday,Tuesday,Wednes-
day,Thursday,Friday,Sat-
urday,Sunday and Monday
- Friday,Saturday - Sunday,
Monday - Sunday
Mo - Su: 11:00-
13:00
Period 1: Start –End
Period 2: Start –End
Period 3: Start –End
00:00 24:00 h:min 00:10
Days away from home scheduling →