Viessmann Vitodens 200-W System Operating instructions

Operating instructions
for the system user
VIESMANN
Control unit with 7 inch colour touchscreen
VITODENS 200-W/222-W/222-F/242-F
5593212 GB 1/2020 Please keep safe.

2
Please follow these safety instruc-
tions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the risk
of injury.
!Please note
This symbol warns against the risk
of material losses and environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These operating instructions are
designed for heating system users.
This appliance can also be operated by
children 8 years and older, as well as by
individuals with reduced physical, sen-
sory or mental faculties or those lacking
in experience and knowledge, provided
such individuals are being supervised or
have been instructed in the safe use of
this appliance and any risks arising from
it.
!Please note
Supervise children in the proximity
of the appliance.
■Never permit children to play with
the appliance.
■Cleaning and maintenance must
not be carried out by unsuper-
vised children.
Safety instructions for working on the system
Appliance connection
■The appliance may be connected and
commissioned only by authorised con-
tractors.
■Only operate the appliance with suita-
ble fuels.
■Observe the specified electrical con-
nection requirements.
■Modifications to the existing installation
may be carried out only by authorised
contractors.
Danger
Incorrectly executed work on the
heating system can lead to life
threatening accidents.
■Work on gas installations may
only be carried out by a registered
gas fitter.
■Work on electrical equipment may
only be carried out by a qualified
electrician.
Safety instructions
For your safety
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Work on the appliance
■All settings and work on the appliance
must be carried out as specified in
these operating instructions.
Further work on the appliance may be
carried out only by authorised contrac-
tors.
■Never open the appliance.
■Never remove casings.
■Never change or remove attachments
or fitted accessories.
■Never open or tighten pipe connec-
tions.
Danger
Hot surfaces can cause burns.
■Never open the appliance.
■Never touch the hot surfaces of
uninsulated pipes, fittings or flue
pipes.
Auxiliary components, spare and
wearing parts
!Please note
Components not tested with the
heating system may damage the
system or affect its function.
Have all installation or replacement
work carried out exclusively by
qualified contractors.
Safety instructions for operating the system
Damage to the appliance
Danger
Damaged equipment poses a
safety hazard.
Check the appliance for external
damage. Never start up a damaged
appliance.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■Do not smoke! Prevent naked
flames and sparks. Never switch
lights or electrical appliances on
or off.
■Close the gas shut-off valve.
■Open windows and doors.
■Evacuate any people from the
danger zone.
■Notify your gas and power supply
utility and your local heating con-
tractor from outside the building.
■Have the power supply to the
building shut off from a safe place
(outside the building).
Safety instructions
For your safety (cont.)
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If you smell flue gas
Danger
Flue gas can lead to life threatening
poisoning.
■Shut down the heating system.
■Ventilate the installation site.
■Close all doors in the living space.
If there is a fire
Danger
Fire presents a risk of burns and
explosion.
■Shut down the heating system.
■Close the shut-off valves in the
fuel supply lines.
■Use a tested fire extinguisher,
class ABC.
What to do if water escapes from the
appliance
Danger
If water escapes from the appliance
there is a risk of electric shock.
■Switch off the heating system at
the external isolator (e.g. fuse
box, domestic distribution board).
■Notify your heating contractor.
If the heating system develops a fault
Danger
Fault messages indicate faults in
the heating system. If faults are not
rectified, they can have life threat-
ening consequences.
Do not acknowledge fault mes-
sages several times in quick suc-
cession. Inform your heating con-
tractor so the cause can be ana-
lysed and the fault rectified.
Installation room requirements
Danger
Sealed vents result in a lack of
combustion air. This leads to incom-
plete combustion and the formation
of life threatening carbon monoxide.
Never cover or close existing vents.
Do not make any subsequent modi-
fications to the building characteris-
tics that could affect safe operation
(e.g. cable/pipework routing, clad-
ding or partitions).
Danger
Easily flammable liquids and mate-
rials (e.g. naphtha/petrol, solvents,
cleaning agents, paints or paper)
can cause deflagration and fire.
Never store or use such materials
in the boiler room or in direct prox-
imity to the heating system.
!Please note
Incorrect ambient conditions can
lead to heating system damage and
can put safe operation at risk.
■Ensure ambient temperatures are
above 0 °C and below 35 °C.
■Prevent air contamination by halo-
genated hydrocarbons (e.g. as
contained in paints, solvents or
cleaning fluids) and excessive
dust (e.g. through grinding/polish-
ing work).
■Avoid continuously high humidity
levels (e.g. through continuous
drying of washing).
Extractors
The operation of appliances that extract
air to the outside (cooker hoods, extrac-
tors, air conditioning units, etc.) can cre-
ate negative pressure. If the boiler is
operated at the same time, this can lead
to a reverse flow of flue gas.
Safety instructions
For your safety (cont.)
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Danger
The simultaneous operation of the
boiler and appliances that extract
air to the outside can result in life
threatening poisoning due to a
reverse flow of flue gas.
Take suitable steps to ensure an
adequate supply of combustion air.
If necessary, contact your contrac-
tor.
Safety instructions
For your safety (cont.)
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1. Liability ................................................................................................................ 9
2. Introductory information Symbols ................................................................................................. 10
Terminology ........................................................................................... 10
Intended use .......................................................................................... 10
Product information ................................................................................ 11
Software licences ................................................................................... 12
Commissioning ...................................................................................... 12
Your system is preset ............................................................................ 12
Energy saving tips ................................................................................. 13
Tips for greater comfort ......................................................................... 13
3. Operation Operating principles ............................................................................... 14
■Status display with Lightguide ............................................................ 14
Displays ................................................................................................. 14
■Standby display .................................................................................. 14
■Default displays .................................................................................. 14
■Home screen ...................................................................................... 15
Buttons and symbols ............................................................................. 15
■Buttons and symbols in menu bar A ................................................. 15
■Buttons and symbols in function area B ........................................... 16
■Buttons and symbols in navigation area C ....................................... 16
Overview of the "Main menu" ............................................................... 16
■Menus available in the "Main menu" ................................................. 17
Operating program ................................................................................. 18
■Operating programs for central heating and DHW heating ................ 18
■Special operating programs and functions ......................................... 18
Procedure for setting a time program .................................................... 18
■Time programs and time phases ........................................................ 19
■Setting time phases ............................................................................ 19
■Copying the time program to other days of the week ......................... 20
■Changing time phases ........................................................................ 20
■Deleting time phases .......................................................................... 20
4. Default displays Default display "Heating circuit" or "Continuous operation" ............ 22
"DHW" default display ........................................................................... 22
"Energy cockpit" default display .......................................................... 22
■Calling up operating data for the solar thermal system ...................... 23
■Checking the temperatures in the DHW cylinder ................................ 24
■Calling up operating data for the heat generator ................................ 24
■Calling up the energy balance ............................................................ 25
"Favourites" default display ................................................................. 25
"System overview" default display ...................................................... 26
5. Room heating Heating circuit selection ......................................................................... 27
Setting the room temperature for a heating circuit ................................. 27
■Setting temperature levels for central heating .................................... 27
Switching central heating ON or OFF (operating program) ................... 27
Time program for central heating ........................................................... 28
■Setting a time program ....................................................................... 28
Setting the heating curve ....................................................................... 28
Temporarily adjusting the room temperature ......................................... 29
■Switching on "Extended heating" ..................................................... 29
■Switching off "Extended heating" ..................................................... 29
Adjusting the room temperature for longer periods at home ................. 30
■Switching on "Holidays at home" ................................................ 30
■Switching off "Holidays at home" ................................................ 30
Saving energy during long periods of absence ..................................... 31
■Switching on the "Holiday program" ........................................... 31
Index
Index
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■Switching off the "Holiday program" ........................................... 31
6. DHW heating DHW temperature .................................................................................. 32
Switching DHW heating on or off (operating program) .......................... 32
Time program for DHW heating ............................................................. 32
■Setting a time program ....................................................................... 32
■Setting a time program for the DHW comfort function ........................ 32
■Setting the time program for the DHW circulation pump .................... 33
One-off DHW heating outside the time program .................................... 33
■Switching on one-off DHW heating ..................................................... 33
■Switching off one-off DHW heating ..................................................... 33
Increased DHW hygiene ........................................................................ 34
■Switching on increased DHW hygiene ............................................... 34
■Switching off increased DHW hygiene ................................................ 34
Switching DHW scald protection on/off .................................................. 34
7. Further adjustments Locking the control panel ....................................................................... 35
■Unlocking the controls ........................................................................ 35
■Changing the password for the "Lock panel" function ........................ 35
Setting the display brightness ................................................................ 35
Switching the Lightguide on and off ....................................................... 35
Adjusting the signal tone for on-screen buttons .................................... 36
Entering names for heating circuits ....................................................... 36
Setting the "Time" and "Date" .............................................................. 36
Automatic "Summer/wintertime" changeover ..................................... 37
Setting the "Language" ........................................................................ 37
Setting "Units" ...................................................................................... 37
Entering the contractor's contact details ................................................ 37
Setting the home screen ........................................................................ 37
Setting the gross calorific value and gas volume correction factor for
consumption billing ................................................................................ 38
Switching on wireless connection to the remote control ........................ 38
Switching internet access on or off ........................................................ 38
■Switching WiFi on or off ...................................................................... 38
■Establishing a WiFi connection ........................................................... 39
■Static IP addressing ............................................................................ 39
Switching off the display screen for cleaning ......................................... 39
Restoring factory settings ...................................................................... 40
8. Checks Calling up help messages ...................................................................... 41
Checking information ............................................................................. 41
Calling up licenses for the integrated wireless module .......................... 41
■Switching on access point .................................................................. 41
■Calling up open source licences ......................................................... 41
■Third party software ............................................................................ 42
Checking service messages .................................................................. 42
■Calling up service messages .............................................................. 43
Checking fault messages ....................................................................... 43
■Calling up a fault message ................................................................. 43
■Resetting the burner after a burner fault ............................................. 43
Checking message lists ......................................................................... 44
9. Emissions test mode ................................................................................................................ 45
10. Switching on and off Switching the system off ........................................................................ 46
■Shutting down heat generation with frost protection monitoring
("Standby mode") ............................................................................. 46
■Switching off heat generation without frost protection monitoring ...... 46
Switching on the system ........................................................................ 46
11. What to do if... Rooms are too cold ................................................................................ 48
Index
Index
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Rooms are too hot ................................................................................. 49
There is no hot water ............................................................................. 49
The DHW is too hot ............................................................................... 49
"Fault" is displayed ............................................................................... 50
ë and "Service" are displayed ............................................................ 50
"Panel locked" is displayed .................................................................. 50
"External hook-up" is displayed .......................................................... 50
12. Maintenance Cleaning ................................................................................................. 51
Inspection and maintenance .................................................................. 51
■Appliance ............................................................................................ 51
■DHW cylinder ...................................................................................... 51
■Safety valve (DHW cylinder) ............................................................... 51
■Potable water filter (if installed) .......................................................... 51
Damaged cables / lines ......................................................................... 52
13. Appendix Overview of "Main menu" ..................................................................... 53
Terminology ........................................................................................... 57
■Standby mode .................................................................................... 57
■Setback mode (reduced heating mode) ............................................. 57
■System version ................................................................................... 57
■Operating program ............................................................................. 57
■Operating status ................................................................................. 57
■Operating mode .................................................................................. 57
■Mixer extension kit .............................................................................. 57
■Screed drying ..................................................................................... 57
■Underfloor heating .............................................................................. 57
■Heating mode ..................................................................................... 58
■Heating curve ..................................................................................... 58
■Heating circuit ..................................................................................... 60
■Heating circuit pump ........................................................................... 60
■Mixer ................................................................................................... 60
■Night setback ...................................................................................... 61
■Open flue operation ............................................................................ 61
■Room sealed operation ...................................................................... 61
■Room temperature .............................................................................. 61
■Return temperature ............................................................................ 61
■Safety valve ........................................................................................ 61
■Solar circuit pump ............................................................................... 61
■Set temperature .................................................................................. 61
■Summer mode .................................................................................... 61
■Cylinder primary pump ....................................................................... 62
■Set temperature .................................................................................. 62
■Drinking water filter ............................................................................. 62
■Flow temperature ................................................................................ 62
■Weather-compensated operation ....................................................... 62
■Time program ..................................................................................... 62
■DHW circulation pump ........................................................................ 62
Information on disposal .......................................................................... 62
■Disposal of packaging ........................................................................ 62
■Final decommissioning and disposal of the heating system ............... 63
14. Keyword index ................................................................................................................ 64
Index
Index (cont.)
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No liability is accepted for loss of profit, unattained
savings, or other direct or indirect consequential losses
resulting from use of the WiFi interface integrated into
the system or the corresponding internet services. No
liability is accepted for losses resulting from inappropri-
ate use.
Liability is limited to typical damage arising if a funda-
mental contractual obligation is violated through slight
negligence, the fulfilment of which is essential for
proper execution of the contract.
The limitation of liability shall not apply if the damage
was caused deliberately or through gross negligence,
or if mandatory liability applies due to product liability
legislation.
The Viessmann General Terms and Conditions apply,
which are included in each current Viessmann pricelist.
The relevant data protection regulations and terms of
use apply to the use of Viessmann apps. Viessmann
accepts no liability for push notifications and email
services, which are provided by network operators.
The terms and conditions of the respective network
operators therefore apply.
Liability
Liability
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Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
Terminology
To provide you with a better understanding of the func-
tions of your control unit, some terminology is
explained. This information can be found in chapter
"Terminology" in the Appendix.
Intended use
The appliance is intended solely for installation and
operation in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions. It is only designed for heating up heating water
that is of potable water quality.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than heating the building or DHW shall be deemed
inappropriate.
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
Introductory information
Symbols
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Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended use (e.g. if the
flue gas and ventilation air paths are sealed).
Product information
The control unit is a boiler and heating circuit control
unit for the following operating modes:
■Weather-compensated operation
■Continuous operation
■Room temperature-dependent operation
Your heating contractor will configure the operating
mode during commissioning in accordance with your
heating system. These instructions describe all 3 oper-
ating modes.
Weather-compensated operation
Fig. 1
In weather-compensated operation, the flow tempera-
ture level is controlled according to the outside temper-
ature. The lower the outside temperature, the higher
the flow temperature. This means that more heat is
provided for central heating on cold days than on
warmer days.
In weather-compensated operation, 1 heating circuit
without mixer and up to 2 heating circuits with mixer
can be operated with the control unit.
Continuous operation
Fig. 2
In continuous operation the heat generator provides
heating water with a constant flow temperature regard-
less of the outside temperature.
In continuous operation, 1 heating circuit without mixer
and up to 2 heating circuits with mixer can be operated
with the control unit.
Room temperature-dependent operation
Fig. 3
In room temperature-dependent operation, the central
heating is switched on or off subject to the room tem-
perature. The flow temperature remains constant.
In room temperature-dependent operation, 1 heating
circuit without mixer can be operated with the control
unit.
Introductory information
Intended use (cont.)
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Operation
The control unit is integrated into the heat generator
and controls all functions of your system. The control
unit is operated via a 7 inch colour touchscreen.
A wireless module is integrated into the control unit.
This means the system can also be operated remotely
via the internet and an app.
In weather-compensated operation you can select
some functions via a remote control, in room tempera-
ture-dependent operation the same can be done via a
room temperature controller.
Software licences
This product contains third party software, including
open source software. You are authorised to use this
third party software subject to compliance with the rel-
evant licensing terms.
■Licenses for the integrated wireless module: See
page 41.
■Licences for the programming unit: See page 41.
Commissioning
The commissioning and matching of the appliance to
local conditions and building characteristics, as well as
instructing the user in the operation of the system,
must be carried out by your contractor.
As the user of new combustion equipment, you may be
obliged to notify your local flue gas inspector of the
installation [check local regulations]. Your local flue gas
inspector will also inform you [where appropriate]
about work that may have to be carried out on your
combustion equipment (such as regular checks, clean-
ing).
Your system is preset
Your heating system is preset at the factory and is
therefore ready for operation following commissioning
by your contractor:
Central heating in weather-compensated operation
■Between 06:00 h and 22:00 h, rooms are heated to
20 °C "Room set temperature" (standard room
temperature).
■Between 22:00 h and 06:00 h, rooms are heated to
3 °C "Set reduced room temperature" (reduced
room temperature, frost protection).
Central heating in continuous operation
■Between 06:00 h and 22:00 h, the set flow tempera-
ture is 60 °C ("Normal set flow temperature")
■Between 22:00 h and 06:00 h the set flow tempera-
ture is 50 °C ("Reduced set flow temperature",
frost protection)
Central heating in room temperature-dependent
operation
■The rooms are heated in accordance with the set-
tings on your room temperature controller.
DHW heating
■Between 05:30 and 22:00 h, the DHW is heated to
50 °C "DHW set temperature". Any installed DHW
circulation pump is switched on.
■Between 22:00 and 05:30 h, the DHW cylinder is not
reheated. Any installed DHW circulation pump is
switched off.
Note
Any DHW heating started before 22:00 h remains on
until the set DHW temperature has been reached.
Frost protection
■Your heat generator and DHW cylinder (if installed)
are protected against frost.
Wintertime/summertime changeover
■This changeover is automatic.
Date and time
■The date and time were set by your heating contrac-
tor.
You can change the settings at any time to suit your
individual requirements.
Power failure
All settings are saved if there is a power failure.
Introductory information
Product information (cont.)
5593212

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Saving energy when using central heating
■Do not overheat your home. Every degree of room
temperature reduction saves up to 6 % on your heat-
ing bills.
Weather-compensated operation and room tempera-
ture-dependent operation:
Do not set your standard room temperature ("Room
set temperature") to above 20 °C: See page 27.
■Heat your home to the reduced temperature at night
or during regular absences:
–Weather-compensated operation:
Reduced room temperature
–Continuous operation and room temperature-
dependent operation:
Reduced flow temperature
For this, adjust the settings in the time program for
central heating ("Time program heating"): See
page 28.
In room temperature-dependent operation, time pro-
grams for central heating can only be adjusted at the
room temperature controller.
Room temperature controller operating
instructions
■To switch off functions that are not required (e.g.
central heating in summer), set the operating pro-
gram to "Standby mode" for the relevant heating
circuits: See page 27.
■Only for weather-compensated operation:
If you are going away, set the "Holiday program":
See page 31.
During the period that you are away, the room tem-
perature will be reduced and DHW heating switched
off.
Saving energy on DHW heating
■At night or during regular absences, heat the DHW to
a lower temperature. To do so, adjust the time pro-
gram for DHW heating: See page 32.
■Switch on DHW circulation only for those times in
which you regularly use hot water. For this, adjust
the time program for the DHW circulation pump: See
page 33.
For additional energy saving functions, please contact
your contractor.
Tips for greater comfort
More comfort in your home
■Set your individual preferred temperature: See
page 27.
■Adjust the time program for your heating circuits so
that your individual preferred temperature is auto-
matically reached when you are present: See
page 28.
In room temperature-dependent operation, time pro-
grams for central heating can only be adjusted at the
room temperature controller.
■Only for weather-compensated operation:
Adjust the heating curves so that your home is
heated to your individual preferred temperature all
year round: See page 28.
■Only for weather-compensated operation and contin-
uous operation:
If you need a higher room temperature in the short
term, select the "Extended heating" function: See
page 29.
Example: Late in the evening, the reduced room
temperature is set by the time program. Your guests
stay longer.
■Only for weather-compensated operation:
If you are spending more time than usual in your
home, select the "Holidays at home" function:
See page 30.
E.g. for public holidays or when the children are on
school holidays.
Sufficient DHW heating for your needs
■Adjust the time program for DHW heating so that
there is always sufficient hot water in accordance
with your habitual routines: See page 32.
Example: You need more DHW in the morning than
in the daytime.
■Adjust the time program for the DHW circulation
pump so that DHW is available immediately from the
taps during periods when hot water is drawn more
frequently: See page 33.
■If you need your hot water at a higher temperature
for a short while, select "One-off DHW heating out-
side the time program": See page 33.
Introductory information
Energy saving tips
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Touchscreen
You can change any setting on your system centrally
at the control unit.
The control unit is equipped with a touchscreen. To
input settings and check information, tap the on-screen
buttons.
Remote control for weather-compensated opera-
tion
If remote control units are installed in your rooms, you
can also adjust the settings at the remote control units.
Remote control operating instructions
Room temperature controller for room tempera-
ture-dependent operation
If a room temperature controller is installed in one of
your rooms, you can adjust some settings at the room
temperature controller.
Room temperature controller operating instruc-
tions
Status display with Lightguide
Depending on the type of heat generator, a red illumi-
nated strip (Lightguide) is displayed at the lower or
upper edge of the control unit during operation.
Meaning of the display:
■Lightguide pulsates slowly:
Display is in standby mode.
■Lightguide is illuminated constantly:
You are operating the control unit. Every input opera-
tion is confirmed by a brief flashing.
■Lightguide flashes quickly:
There is a fault on the system.
Note
You can switch off the Lightguide. See page 35.
Displays
Standby display
If the controls have not been operated for some time,
the display initially switches to the standby display.
Fig. 4
After a few minutes, the illumination is switched off.
Default displays
The default displays provide access to the most impor-
tant settings and checks.
You can choose between the following default displays
using :
■Heating circuit or Continuous operation
■DHW
■Energy cockpit
Operation
Operating principles
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■Favourites
■System overview
For further information regarding the default displays:
See page 22 onwards.
Home screen
After starting or activating the control unit the home
screen is shown.
In the delivered condition, the default display "Heating
circuit" or "Continuous operation" is shown as
home screen. The type of display depends on the
operating mode (weather-compensated operation,
continuous operation, room temperature-dependent
operation). You can specify a different default display
for the home screen: See page 37.
Call up the home screen as follows:
■Standby display active:
Tap anywhere on the screen.
■From the "Main menu":
Tap .
Note
You can prevent operation of the home screen: See
page 35.
If you do so, you will not be able to make adjustments
on either the home screen or the main menu.
"Panel locked" is displayed.
Buttons and symbols
Fig. 5 Example: Weather-compensated operation
AMenu line
BFunction area
CNavigation area
Note
Some functions are not available in room temperature-
dependent operation. Where applicable, these func-
tions can be set on the room temperature controller,
e.g. Time program for central heating.
Buttons and symbols in menu bar A
Note
Not all buttons and symbols are available in room tem-
perature-dependent operation, for example the heating
circuit selection.
Calls up the "Main menu".
"Heating circuit ..." Selects the heating circuit.
Note
This choice is only available if
there are several heating circuits
in your system.
Operation
Displays (cont.)
5593212

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System data:
■Date
■Time
Interfaces:
No data transfer
No WiFi connection
Establishing a connection
Communication error
WiFi connection is enabled (very low reception
quality).
WiFi connection is enabled (low reception qual-
ity).
WiFi connection is enabled (medium reception
quality).
WiFi connection is enabled (high reception qual-
ity).
Buttons and symbols in function area B
For buttons on the default displays: See page 22
onwards.
Note
■What buttons and symbols are available depends on
the operating mode: Weather-compensated opera-
tion, continuous operation, room temperature-
dependent operation.
■These symbols are not always displayed, but appear
subject to the system version and the operating sta-
tus.
Symbols
Frost protection is enabled.
Central heating with reduced room temperature in
weather-compensated operation
Central heating with reduced flow temperature in
continuous operation or room temperature-depend-
ent operation
Central heating with standard room temperature in
weather-compensated operation
Central heating with standard flow temperature in
continuous operation or room temperature-depend-
ent operation
Only for weather-compensated operation and con-
tinuous operation:
Central heating with comfort room temperature in
weather-compensated operation
Central heating with comfort flow temperature in
continuous operation
Only for weather-compensated operation and con-
tinuous operation:
Holiday program is switched on.
Only for weather-compensated operation and con-
tinuous operation:
Holidays at home is switched on.
Buttons and symbols in navigation area C
Note
What buttons and symbols are available depends on
the operating mode: Weather-compensated operation,
continuous operation, room temperature-dependent
operation
Takes you back to the home screen.
Takes you one step back in the menu.
Or
Terminates an adjustment in progress.
WiFi is switched off: See page 38.
Confirms a change.
Makes changes in the menu.
Calls up the help text.
Calls up messages.
Calls up the required period for the energy bal-
ance.
Further information: See page 25.
Scrolls through the menu.
Or
Switches to other display areas, e.g. to the
"System overview".
Note
If "DEMO" is displayed in the navigation area, there is
no central heating, no DHW heating and no frost pro-
tection.
Overview of the "Main menu"
In the "Main menu", you can check and adjust all of
the settings for the control unit's range of functions.
Operation
Buttons and symbols (cont.)
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Fig. 6
Call up the "Main menu" as follows:
■If the screensaver is active:
Tap anywhere on the screen and then tap .
■From the home screen:
Tap .
■From anywhere in the menu:
Tap and then .
Menus available in the "Main menu"
Note
What buttons and symbols are available depends on
the operating mode: Weather-compensated operation,
continuous operation, room temperature-dependent
operation.
"Heating"
For more central heating settings, e.g. set temper-
ature values.
Further information: See page 27.
"Test mode"
For the flue gas inspector only
Further information: See page 45.
"DHW"
For DHW heating settings, e.g. for the "DHW
temperature".
Further information: See page 32.
"Settings"
For example the screen setting
Further information: See page 35.
"Information"
For checking operating data
Further information: See page 41.
Only for weather-compensated operation and con-
tinuous operation:
"Holiday program"
Energy saving function "Holiday program"
Further information: See page 31.
Only for weather-compensated operation and con-
tinuous operation:
"Holidays at home"
"Holidays at home" function
Further information: See page 30.
"Message lists"
Calls up all pending messages
For further details regarding messages: See
page 42, 43 and 44.
"Service"
For contractors only
You can find the menu overview on page 53.
Operation
Overview of the "Main menu" (cont.)
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Operating programs for central heating and DHW heating
Note
The operating programs for central heating and DHW
heating can be set separately.
Symbol Operating program Function
Room heating
"Heating" The rooms of the selected heating circuit are heat-
ed in accordance with the specified room tempera-
ture or flow temperature and the time program (see
chapter "Room heating").
Note
In room temperature-dependent operation, the time
program for central heating can only be set at the
room temperature controller: See the operating in-
structions for the room temperature controller.
"Standby mode" ■No central heating
■Frost protection for the heat generator is ena-
bled.
DHW heating
"DHW" "ON" DHW is heated in accordance with the DHW tem-
perature and time program specified (see chapter
"DHW heating").
"DHW" "OFF" ■No DHW heating
■Frost protection for the DHW cylinder is enabled.
Special operating programs and functions
■"Screed drying"
This function is activated by your contractor. Your
screed is dried in line with a set time program (tem-
perature/time profile) suitable for the relevant build-
ing materials. Your settings for central heating have
no effect on the duration of screed drying (max. 32
days). The system no longer provides DHW heating.
The "Screed drying" function can be altered or
switched off by your contractor.
■"External hook-up"
The operating program set at the control unit was
changed over by an external device, e.g. an EM-EA1
extension (DIO electronics module). The operating
program cannot be changed via the control unit for
as long as the external hook-up is enabled.
■Only for weather-compensated operation and contin-
uous operation:
"Holiday program": See page 31.
■Only for weather-compensated operation and contin-
uous operation:
For "Holidays at home": See page 30.
Note
The special operating programs and functions are dis-
played alternately with the room temperature or the
flow temperature of the heat generator.
In the main menu, you can call up the set operating
program under "Information": See page 41.
Procedure for setting a time program
The following explains how to enter the settings for a
time program. The specifics of the individual time pro-
grams can be found in the relevant chapters.
Operation
Operating program
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Time programs and time phases
In the time programs, you specify what your heating
system should do at what time. To do so, divide the
day into sections. These are called time phases. Dif-
ferent temperature levels are enabled within and out-
side these time phases.
You can set up a time program for the following functions:
Function Temperature level
Within the time phase Outside the time phase
Room heating Weather-compensated operation:
Your rooms are heated to standard room
temperature or comfort room temperature.
Your rooms are heated to reduced room
temperature.
Continuous operation:
Your rooms are heated with standard flow
temperature or comfort flow temperature.
Your rooms are heated with reduced flow
temperature.
Room temperature-dependent operation:
The time program for central heating can only be set at the room temperature controller.
Room temperature controller operating instructions
DHW heating DHW heating is switched on.
The water in the DHW cylinder is heated to
the set DHW temperature.
DHW heating is switched OFF.
DHW circulation
pump
The DHW circulation pump is switched on. The DHW circulation pump is switched off.
■The time programs can be set individually to be the
same, or different, for every day of the week.
■In the main menu, you can check the time programs
under "Information": See page 41 onwards.
Setting time phases
The procedure is explained using the example of cen-
tral heating for heating circuit 1 in weather-compensa-
ted operation.
You can set up to four time phases is each "Time pro-
gram".
For each time phase, you define the start point "Start"
and the end point "End".
Example:
"Time program" for "Monday" for "Heating circuit
1"
■Time phase 1:
06:30 to 12:00 h with standard room temperature
■Time phase 2:
15:00 to 20:00 h with comfort room temperature
In between these time phases the system heats to a
reduced temperature.
Tap the following on-screen buttons:
01. "Heating circuit 1 " in the menu bar
02.
03. "Mo"
04.
05. for the "Start" and "End" of time phase 1.
The bar in the time diagram is adjusted.
06. "Normal" to select standard room temperature.
07. to add time phase 2.
Operation
Procedure for setting a time program (cont.)
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08. for the "Start" and "End" of time phase 2.
Fig. 7
The bars in the time diagram are adjusted.
09. "Comfort" to select comfort room temperature.
10. to confirm
11. to quit the "Time program".
Copying the time program to other days of the week
The procedure is explained using the example of cen-
tral heating for heating circuit 1 in weather-compensa-
ted operation.
Example:
You want to copy the "Monday" "Time program" over
to "Thursday" and "Friday".
Tap the following on-screen buttons:
1. "Heating circuit 1 " in the menu bar
2.
3. "Mo"
4.
5. "Th", "Fr"
6. to confirm
7. to quit the time program.
Changing time phases
The procedure is explained using the example of cen-
tral heating for heating circuit 1 in weather-compensa-
ted operation.
Example:
For "Monday", you want to change the start point
"Start"of time phase 2 to 19:00 h.
Tap the following on-screen buttons:
1. "Heating circuit 1 " in the menu bar
2.
3. "Mo"
4.
5. for time phase 2
6. for the start point of time phase 2.
The bar in the time diagram is adjusted.
7. ■ "Normal" for standard room temperature
or
■ "Comfort" for comfort room temperature
8. to confirm
9. to quit the time program.
Deleting time phases
The procedure is explained using the example of cen-
tral heating for heating circuit 1 in weather-compensa-
ted operation.
Example:
For Monday you want to delete time phase 2.
Tap the following on-screen buttons:
1. "Heating circuit 1 " in the menu bar
2.
Operation
Procedure for setting a time program (cont.)
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