Viessmann VITODENS User manual

Operating instructions
for the system user
VIESMANN
Heating system with Vitotronic 200 control unit, type HO2B/HO2C
For weather-compensated operation
VITODENS
VITOSOLAR 300-F
5811580 GB/en 8/2017 Please keep safe.

2
Please follow these safety instructions 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 environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These operating instructions are intended for heating
system users.
This appliance can also be operated by children 8
years and older, as well as by individuals with reduced
physical, sensory or mental faculties or those lacking
in experience and knowledge, provided such individu-
als 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 appli-
ance.
■Never permit children to play with the appli-
ance.
■Cleaning and maintenance must not be car-
ried out by unsupervised children.
Appliance connection
■The appliance may only be connected and commis-
sioned by authorised contractors.
■Only operate the appliance with suitable fuels.
■Observe the specified electrical connection require-
ments.
■Modifications to the existing installation may only be
carried out by authorised contractors.
Danger
Incorrectly executed work on the heating system
can lead to life threatening accidents.
■Work on gas installations must only be carried
out by a registered gas fitter.
■Work on electrical equipment must only be
carried out by a qualified electrician.
Work on the appliance
■All settings and work on the appliance must be car-
ried out as specified in these operating instructions.
Further work on the appliance may only be carried
out by authorised contractors.
■Never open the appliance.
■Never remove casings.
■Never change or remove attachments or fitted
accessories.
■Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
■Never open the appliance.
■Never touch the hot surfaces of uninsulated
pipes, fittings or flue pipes.
Damage to the appliance
Danger
Damaged equipment poses a safety hazard.
Check the appliance for external damage. Never
start up a damaged appliance.
Safety instructions
For your safety
5811580

3
If you smell gas
Danger
Escaping gas can lead to explosions which may
result in serious injury.
■Never smoke. Prevent naked flames and
sparks. Never switch lights or electrical appli-
ances 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 contractor from outside the
building.
■Have the power supply to the building shut off
from a safe place (outside the building).
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.
In case of 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.
In case of water leaking from the appliance
Danger
Water leaking from the appliance poses an elec-
trocution hazard.
■Switch off the heating system at the external
isolation point (e.g. fuse box, domestic power
distribution unit).
■Notify your local heating contractor.
What to do if the heating system develops a fault
Danger
Fault messages point to faults in the heating
system. If faults are not rectified, they can have
life threatening consequences.
Never acknowledge fault messages several
times in quick succession. Inform your heating
contractor so the cause can be analysed and
the fault rectified.
Safety instructions
For your safety (cont.)
5811580

4
Installation room requirements
Danger
Sealed vents result in a lack of combustion air.
This leads to incomplete combustion and the
formation of life threatening carbon monoxide.
Never cover or close existing vents.
Never make any subsequent modifications to
the building characteristics that could affect safe
operation (e.g. cable/pipework routing, cladding
or partitions).
Danger
Easily flammable liquids and materials (e.g.
naphtha, solvents, cleaning agents, paints or
paper) can cause deflagration and fire.
Never store or use such materials in the installa-
tion room or in direct proximity 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 halogenated
hydrocarbons (e.g. as contained in paints, sol-
vents or cleaning fluids) and excessive dust
(e.g. through grinding/polishing work).
■Avoid continuously high humidity levels (e.g.
through continuous drying of washing).
Extractors
The operation of appliances that extract air to the out-
side (cooker hoods, extractors, air conditioning units,
etc.) can create negative pressure. If the boiler is oper-
ated at the same time, this can lead to a reverse flow
of the flue gas.
Danger
The simultaneous operation of the boiler and
appliances that extract air to the outside can
result in life threatening poisoning due to
reverse flow of the flue gas.
Take suitable steps to ensure an adequate sup-
ply of combustion air. If necessary, contact your
heating contractor.
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 your safety (cont.)
5811580

5
1. Information Symbols ................................................................................................. 8
Terminology ........................................................................................... 8
Intended use .......................................................................................... 8
2. Introductory information Commissioning ...................................................................................... 10
Your system is preset ............................................................................ 10
Energy saving tips ................................................................................. 10
Tips for greater comfort ......................................................................... 11
3. Operation Opening the control unit ......................................................................... 12
Programming unit .................................................................................. 12
■Standard menu ................................................................................... 12
■Ventilation ........................................................................................... 14
■Main menu .......................................................................................... 14
Operating program ................................................................................. 15
■Operating programs for central heating, DHW, frost protection .......... 15
■Operating programs for ventilation ..................................................... 15
■Special operating programs ................................................................ 16
Time program ........................................................................................ 16
■Setting time phases ............................................................................ 16
■Copying the time program to other days of the week ......................... 18
■Changing the time phases .................................................................. 18
■Deleting time phases .......................................................................... 19
Ventilation .............................................................................................. 20
■Temporarily changing the ventilation intensity .................................... 21
■Changing the ventilation intensity for a longer period ......................... 21
Energy cockpit ....................................................................................... 21
■Default display in the energy cockpit .................................................. 21
■Temperature of the solar thermal system ........................................... 22
■Energy yield from the solar thermal system ....................................... 23
■Energy statement in combination with solar thermal system .............. 23
■Temperature and heat-up condition of the DHW cylinder ................... 24
■Energy status of the heat generator ................................................... 25
■Heating output, operating times and consumption ............................. 25
■Entering additional data on gas consumption ..................................... 26
Favourites .............................................................................................. 26
■Compiling a list of favourite menu points ............................................ 26
4. Start-up/shutdown Starting up the heating system .............................................................. 27
Shutting down the heating system ......................................................... 27
■With frost protection monitoring .......................................................... 27
■Without frost protection monitoring (shutdown) .................................. 27
5. Central heating Heating circuit selection ......................................................................... 29
Room temperature ................................................................................. 29
■Setting the standard room temperature for the selected heating cir-
cuit ...................................................................................................... 29
■Setting the reduced room temperature ............................................... 29
Operating program ................................................................................. 30
■Setting the operating program ............................................................ 30
Time program ........................................................................................ 30
■Setting a time program ....................................................................... 30
Heating curve ......................................................................................... 30
■Setting a heating curve ....................................................................... 31
Stopping central heating ........................................................................ 31
Comfort function .................................................................................... 31
■Setting "Comfort mode" (if available) ............................................... 31
■Ending "Comfort mode" ................................................................... 32
Energy saving function "Economy mode" ........................................... 32
■Setting "Economy mode" ................................................................. 32
Index
Index
5811580

6
■Ending "Economy mode" ................................................................. 32
"Holiday program" energy saving function ............................................. 32
■Setting the "Holiday program" (HO2B) ............................................ 32
■Setting the "Holiday program" (HO2C) ............................................ 33
■Cancelling or deleting the "Holiday program" .................................. 34
6. DHW heating DHW temperature .................................................................................. 35
Operating program ................................................................................. 35
■Setting the operating program ............................................................ 35
Time program ........................................................................................ 35
■Setting a time program ....................................................................... 35
■Increased DHW hygiene ..................................................................... 36
■DHW heating once, outside the time program .................................... 36
■Setting the time program for the DHW circulation pump .................... 36
Switching off DHW heating .................................................................... 36
7. Mechanical ventilation Starting mechanical ventilation .............................................................. 37
Setting the operating program ............................................................... 37
Setting the time program ....................................................................... 37
■Setting time phases ............................................................................ 37
"Holiday program" energy saving function ............................................. 37
■Setting the "Holiday program" (HO2B) ............................................ 37
■Setting the "Holiday program" (HO2C) ............................................ 38
■Cancelling or deleting the "Holiday program" (only HO2B) ............. 38
Selecting the set room temperature for ventilation without heat recov-
ery .......................................................................................................... 39
Selecting the minimum set supply air temperature for ventilation with-
out heat recovery ................................................................................... 39
Cleaning or replacing the filters ............................................................. 39
Setting intensive mode .......................................................................... 39
Setting reduced mode ............................................................................ 40
8. Further adjustments Locking the controls ............................................................................... 41
■Cancelling control lock ........................................................................ 41
■Changing the password for the "Disable operation" function ............. 41
Setting the display illumination .............................................................. 41
Signal tone for display (key tone) .......................................................... 41
Naming heating circuits ......................................................................... 42
Setting the time and date ....................................................................... 42
Setting the language .............................................................................. 42
Entering the heating contractor contact details ..................................... 42
Permanently selecting the default display ............................................. 42
Deactivating the display screen for cleaning ......................................... 43
Restoring the factory settings ................................................................ 43
9. Calling up information Scanning information ............................................................................. 44
■Temperature profile of the DHW cylinder ............................................ 44
■Temperature stratification in the DHW cylinder .................................. 44
■Calling up the solar energy yield in conjunction with solar thermal
systems .............................................................................................. 44
■Calling up the contact details for your heating contractor ................... 45
■Resetting operating data (meters) ...................................................... 45
Calling up service messages ................................................................. 45
Scanning fault messages ....................................................................... 45
Calling up help messages ...................................................................... 46
10. Emissions test mode ................................................................................................................ 47
11. What to do if... Rooms are too cold ................................................................................ 48
Rooms are too hot ................................................................................. 49
There is no hot water ............................................................................. 49
Index
Index
5811580

7
The DHW is too hot ............................................................................... 50
"Fault" is displayed ............................................................................... 50
ë and "Service" are displayed ............................................................ 50
"Operation disabled" is displayed ....................................................... 50
"External hook-up" is displayed .......................................................... 50
"External program" is displayed .......................................................... 50
"Check filter" is displayed .................................................................... 50
Doors/windows are difficult to open ....................................................... 51
Doors/windows bang when opened ....................................................... 51
12. Maintenance Cleaning ................................................................................................. 52
Inspection and maintenance .................................................................. 52
■Appliance ............................................................................................ 52
■DHW cylinder (if installed) .................................................................. 52
■Safety valve (DHW cylinder) ............................................................... 52
■Potable water filter (if installed) .......................................................... 52
Cleaning the mechanical ventilation system .......................................... 53
Cleaning or replacing filters ................................................................... 53
■Filter in the ventilation unit .................................................................. 53
Damaged cables / lines ......................................................................... 58
13. Appendix Overview of extended menu .................................................................. 59
Data call-up options under "Information" ............................................. 59
Heating terminology ............................................................................... 61
Mechanical ventilation terminology ........................................................ 63
■Mechanical ventilation ........................................................................ 63
Information on disposal .......................................................................... 64
■Disposal of packaging ........................................................................ 64
■Final decommissioning and disposal of the heating system ............... 65
14. Keyword index ................................................................................................................ 66
Index
Index (cont.)
5811580

8
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 Vitotronic control unit, some terminology
is explained. The terms are marked as follows:
Further 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.
Information
Symbols
5811580

9
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
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).
Information
Intended use (cont.)
5811580

10
The commissioning and matching of the control unit to
local conditions and building characteristics, as well as
instructing the user in the operation of the system,
must be carried out by your heating 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 he may be required to carry out on your
combustion equipment (e.g. regular checks, cleaning).
Your system is preset
Your heating system is preset at the factory and is
therefore ready for operation:
Central heating
■Between 06:00 and 22:00 h, the rooms are heated
to 20 °C "Set room temperature" (standard room
temperature).
■Between 22:00 and 06:00 h, the rooms are heated
to 3 °C "Reduced room temperature" (reduced
room temperature, frost protection).
DHW heating
■Between 05:30 and 22:00 h, the DHW is heated to
50 °C "Set DHW 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 begun before 22:00 h is termina-
ted.
Mechanical ventilation
■If a ventilation unit is connected to the Vitotronic:
Operation with "Normal" ventilation level from 00:00
to 24:00 h.
Frost protection
■Your boiler and DHW cylinder are protected against
frost.
Wintertime/summertime changeover
■This changeover is automatic.
Date and time
■The date and time have been set by your heating
contractor.
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.
Energy saving tips
Central heating
■Standard room temperature (see page 29):
Do not overheat your home. Every degree of room
temperature reduction saves up to 6 % on your heat-
ing bills.
Never set your standard room temperature ("Set
room temperature") higher than 20 °C.
■Time program (see page 16):
Heat your home to the standard room temperature
during the day and the reduced temperature at night.
Set this via the time program.
■Operating program:
If you do not require central heating, select one of
the following operating programs:
–"Only DHW" (see page 35):
If you require no heating for your home in summer,
but you require DHW.
–"Standby mode" (see page 27):
If you don't need to heat your home and don't
require DHW for long periods.
■Short absence (see page 32):
Reduce the room temperature if you are going out
shopping, for example. For this, select "Economy
mode".
■Holidays (see page 29):
If you are going away, select the "Holiday pro-
gram":
The room temperature is reduced and DHW heating
is turned off.
■Ventilation:
Close the thermostatic valves when ventilating/airing
manually. Open the windows fully for a brief time.
■Roller shutters:
Close roller shutters (if installed) at dusk.
■Thermostatic valves:
Ensure that thermostatic valves are properly adjus-
ted.
■Radiators:
Never cover radiators or thermostatic valves.
Introductory information
Commissioning
5811580

11
DHW heating
■DHW circulation pump (see page 36):
Only activate the DHW circulation pump for periods
in which DHW is regularly drawn off. Set this via the
time program.
■DHW consumption:
Consider showering instead of running a bath. A
shower generally uses less energy than a full bath.
Mechanical ventilation
If a ventilation unit is connected to the Vitotronic.
■Short absence:
Reduce the ventilation level in the ventilation display
area. For this, select "Eco" or the "Basic mode"
operating program.
■Holidays (see page 37):
If you are going away, select the "Holiday pro-
gram":
The ventilation level is reduced. The room tempera-
ture is reduced and DHW heating is turned off.
For additional energy saving functions of the Vitotronic
control unit, please contact your heating contractor.
Tips for greater comfort
Central heating
■Standard room temperature (see page 29):
You can select your individual preferred temperature
at any time under "Set room temperature" in the
standard menu.
■Time program (see page 16):
Make use of the time program. In the time program,
you can set time phases with different room temper-
atures, for example different temperatures for day
and night time.
■Heating curve (see page 30):
The heating curve enables you to individually adjust
the heating system to the actual heat demand in your
home. If set correctly, your preferred temperature will
be achieved all year round.
■"Comfort mode" (see page 31):
Select "Comfort mode" if you want to heat your
rooms to a different temperature from the one set in
the time program.
Example: Late in the evening, the reduced room
temperature is set by the time program. Your guests
stay longer.
DHW heating
■Time program (see page 35 and 36):
Use the time program for DHW heating.
Use the time program for the DHW circulation pump.
During the selected time phases, DHW is available
at the draw-off points at the required temperature.
Mechanical ventilation
If a ventilation unit is connected to the Vitotronic.
■Increased relative humidity and/or stronger
odours, e.g. when cooking:
Increase the ventilation level. To do so, select
"Intensive mode" (see page 37).
Introductory information
Energy saving tips (cont.)
5811580

12
Fig. 1
Programming unit
You can change any setting on your heating system
centrally at the programming unit of the control unit.
Note
The operating instructions are relevant for various
"display versions", which is why 2 images are shown.
If remote control units are installed in your rooms, you
can also adjust the settings at the remote control units.
Remote control operating instructions
If the controls have not been operated for a certain
time, the screensaver appears:
Fig. 2 HO2B
Fig. 3 HO2C
2 control levels are available:
■The standard menu: See page 12
■The main menu: See page 14
The programming unit is equipped with a
touchscreen. To input settings and call up information,
tap the on-screen buttons.
Standard menu
In the standard menu you can choose between 4 types
of display:
■Default display for heating
■Ventilation
■Energy cockpit
■Favourites
In the delivered condition, the default display for
"Heating" is always shown after you switch on and tap
. If you would prefer to show a different display area,
see page 42.
Call up the standard menu as follows:
■If the screensaver is active:
Tap the display anywhere.
■From the main menu:
Tap .
The default display then appears.
With / you access the following display areas:
■Energy cockpit
■Favourites
■Ventilation
Operation
Opening the control unit
5811580

13
Default display "Heating"
In the default display (see image below) you can call
up and adjust the most frequently used settings:
■Set room temperature
■Operating program
■Comfort mode or
■Economy mode or
Fig. 4 HO2B
Fig. 5 HO2C
Temperature displays
12° Current outside temperature
20° Selected set room temperature
Symbols and buttons
These symbols are not always displayed, but appear
subject to the system version and the operating condi-
tion.
Symbols
or Frost protection is active
or Central heating at standard room tempera-
ture (preferred temperature)
or Central heating with reduced room tempera-
ture
or In conjunction with a solar thermal system:
Solar circuit pump is running
or Mechanical ventilation is running and the
ventilation level is shown
or Burner in operation
Buttons on the default display
or Increases the value for standard room tem-
perature.
or Reduces the value for standard room temper-
ature.
or
or
or Sets the operating program (for operating pro-
grams, see page 15).
or Enables/disables comfort mode.
or Enables/disables economy mode.
Note
If your heating system is not designed for DHW heat-
ing, is not displayed.
Buttons in the header
"Menu" or " " Calls up the main menu.
" Heating circuit 1 2 3" Selects the heating circuit.
Note
This selection is only availa-
ble if at least 2 heating cir-
cuits can be operated.
Operation
Programming unit (cont.)
5811580

14
Buttons in the footer
or Returns you to the standard menu.
or Takes you to the previous step in the
menu or cancels a setting that has been
started.
or Calls up the help text.
or Calls up fault or service messages.
/ or / Standard menu:
Calls up the Energy cockpit or your selec-
ted Favourites.
Main menu:
Scrolls through the menu.
Energy cockpit
The Energy cockpit display area provides information
on the energy state of the heating system and its com-
ponents. For further information, see page 21.
When you call up the Energy cockpit for the first time,
a notification appears.
■The Energy cockpit is opened once you confirm this
notification with OK. This notification will not appear
again.
■If you tap on Cancel, the notification will appear
again the next time you call up the Energy cockpit.
Favourites
In the "Favourites" display you can assemble your indi-
vidual group of menu points that you use most fre-
quently. For further information, see page 26.
Ventilation
In the "Ventilation" display area, you can select the
ventilation levels and the current ventilation level is
shown. For further information, see page 20.
Main menu
In the main menu, you can call up and adjust all of the
settings for the control unit's range of functions.
You can find the menu overview on page 59.
Call up the main menu as follows:
■If the screensaver is active:
Tap the display anywhere and then tap on "Menu" or
" ".
■If you are in the standard menu:
Tap "Menu" or " ".
■From anywhere in the menu:
Tap on and then "Menu" or " ". Fig. 6 HO2C
Fig. 7 HO2B
AHeader
BFooter
Operation
Programming unit (cont.)
5811580

15
Operating programs for central heating, DHW, frost protection
Note
DHW heating is only shown if your boiler is equip-
ped with a DHW heating function.
Symbol Operating program Function
Central heating and DHW heating
"Heating and DHW" ■The rooms of the selected heating circuit are
heated in accordance with the room temperature
and time program specified (see chapter "Central
heating").
■DHW is heated in accordance with the DHW
temperature and time program specified (see
chapter "DHW heating").
DHW heating
"Only DHW" ■DHW is heated in accordance with the DHW
temperature and time program specified (see
chapter "DHW heating").
■No central heating
■Frost protection for the boiler and the DHW cylin-
der is enabled.
Frost protection
"Standby mode" ■No central heating
■No DHW heating
■Frost protection for the boiler and the DHW cylin-
der is enabled.
Operating programs for ventilation
Operating program Operating status Air flow rate Ventilation
level
"Standby mode" —No ventilation 0
"Basic mode" —Minimum air flow rate 1
"Automatic mode" "Reduced" Reduced air flow rate
Approx. 70 % of the nominal air flow
rate; see operating status "Normal"
2
"Normal" Standard air flow rate
If a humidity and/or CO2 sensor is in-
stalled in your home, the air flow rate
is adjusted subject to the humidity
and/or CO2 concentration.
3
"Intensive operation" Maximum air flow rate
Approx. 125 % of the nominal air flow
rate; see operating status "Normal"
4
Note
The respective air flow rates for "Reduced", "Normal"
and "Intensive operation" are set by your heating
contractor.
Operation
Operating program
5811580

16
Special operating programs
Special operating programs:
■"Screed drying"
This function is activated by your heating contractor.
Your screed is dried in line with a set time program
suitable for the relevant building materials (tempera-
ture/time profile). Your settings for central heating
have no effect on the duration of screed drying (max.
32 days). This function can be altered or cancelled
by your heating contractor.
■"External hook-up"
The operating program set at the control unit has
been switched over by an external device, e.g. EA1
extension. This function cannot be influenced via the
control unit.
■"External program"
The operating program was changed via a communi-
cation interface (e.g. Vitocom 100). You can influ-
ence this function via the control unit.
■"Holiday program" (see page 29)
Note
The special operating programs are shown on the dis-
play in alternation with the boiler water temperature.
In the extended menu, you can check the set operating
program under "Information" (see page 44).
Time program
The following explains how to input the settings for a
time program, using central heating with
heating circuit 1 as an example.
The specifics of the individual time programs can be
found in the relevant chapters.
You can set up a time program for the following func-
tions:
■Central heating
■DHW heating
■DHW circulation pump
■Mechanical ventilation
■The time program allows you to divide the day into
sections. These are called time phases.
■You can select several time phases per day:
–Up to 4 time phases for central heating, DHW heat-
ing and the DHW circulation pump
–Up to 8 time phases for mechanical ventilation
■For each time phase, you define a start and end
point.
■You can set the time program individually, to be the
same, or different, for every day of the week.
■In the main menu, you can call up the time programs
under "Information" (see from page 44).
Within the time phases, the following functions are
active:
■If central heating is enabled, your home will be
heated to the standard room temperature.
■If DHW heating is enabled, the water in the DHW cyl-
inder will be heated to the set DHW temperature.
■The DHW circulation pump is operational.
■Mechanical ventilation runs in Automatic mode
Setting time phases
Example
■Time program for "Monday" for heating circuit 1
■Time phase 1:
05:30 to 09:00 h
■Time phase 2:
E.g. 16:30 to 22:00 h or 19:00 22:00 h
In between these time phases the system heats to a
reduced temperature.
Tap the following on-screen buttons:
01. "Menu"/" "
02. "Heating"
03. Heating circuit 1
04. "Time program"
05. "Mo"
06. "Change"/" "
Operation
Operating program (cont.)
5811580

17
07. / for the start and end point of time phase 1.
The bar in the time diagram is adjusted.
Fig. 8 HO2B
Fig. 9 HO2C
Cancelling the setting of a time phase early
Tap .
08. to create time phase 2.
09. / for the start and end point of time phase 2.
The bar in the time diagram is adjusted (displayed
differently depending on the type of control unit).
Fig. 10 HO2B
Fig. 11 HO2C
Operation
Time program (cont.)
5811580

18
10. OK/ to confirm
Fig. 12 HO2B
Fig. 13 HO2C
11. to quit the time program
Copying the time program to other days of the week
You can copy a given time program to every other day
of the week.
You want to copy the Monday time program over to
Tuesday to Friday.
Tap the following on-screen buttons:
1. "Menu"/
2. "Heating"
3. Heating circuit 1
4. "Time program"
5. "Mo"
6. "Copy"/
7. "Tu", "We", "Th", "Fr"
8. OK/ to confirm
9. to quit the time program
Changing the time phases
Example:
For Monday you want to change the start point of
time phase 2 to 19:00 h.
Tap the following on-screen buttons:
01. "Menu"/" "
02. "Heating"
03. Heating circuit 1
04. "Time program"
05. "Mo"
06. "Change"/ " "
07. for time phase 2
08. for the start point of time phase 2. The bar in
the time diagram is adjusted.
Operation
Time program (cont.)
5811580

19
09. OK/ to confirm
Fig. 14 HO2B
Fig. 15 HO2C
10. to quit the time program
Deleting time phases
Example:
For Monday you want to delete time phase 2.
Tap the following on-screen buttons:
01. "Menu"/" "
02. "Heating"
03. Heating circuit 1
04. "Time program"
05. "Mo" to select the required day
06. "Change"/" "
07. for time phase 2
Operation
Time program (cont.)
5811580

20
08. to delete the time phase
Fig. 16 HO2B
Fig. 17 HO2C
09. OK/ to confirm
10. to quit the time program
Ventilation
If a mechanical ventilation unit is connected to the
Vitotronic.
In the ventilation display area, you can select the venti-
lation intensity according to current requirements. Your
ventilation system is preset at the factory. In the deliv-
ered condition, the ventilation level is set to "Normal".
The symbol for the selected function is highlighted in
white.
Fig. 18 Display of HO2B
For further details regarding mechanical ventilation,
see page 37.
Operation
Time program (cont.)
5811580