Viessmann VITOTRONIC 100 Operating instructions

Operating instructions
for the system user
VIESMANN
Control of the boiler water temperature for each boiler in the cascade:
■Vitotronic 100, type GC7B
■Vitotronic 100, type HC1B
Weather-compensated control for a multi boiler system (cascade):
■Vitotronic 300-K, type MW1B
■Vitotronic 300-K, type MW2B
VITOTRONIC 100
VITOTRONIC 300-K
5592675 GB 9/2018 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 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, 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.
Connecting the appliance
■Connection and commissioning of the appliance may
only be carried out by authorised contractors.
■Only operate the appliance with suitable fuels.
■Adhere to the electrical connection requirements.
■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.
Working on the appliance
■When adjusting settings and carrying out work on the
appliance always follow the guidelines in these oper-
ating instructions.
Additional work on the appliance may only be carried
out by authorised contractors.
■Never open the appliance.
■Never remove the cladding.
■Never remove or change additional parts or installed
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
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If you smell gas
Danger
Escaping gas can lead to explosions which may
result in serious injury.
■Do not smoke. Prevent naked flames and
sparks. Do not 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.
Emergency contact
If you smell gas or detect a gas leak call the National
Gas Emergency service on 0800 111 999. Notify your
gas or electricity supplier and your heating contractor.
■Shut off the electricity supply to the building from a
safe place (outside the building).
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.
What to do if water escapes from the appliance
Danger
If water escapes from the appliance there is a
risk of electrocution.
■Switch OFF the heating system at the external
isolator (e.g. fuse box, domestic distribution
board).
■Notify heating contractor.
What to do 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 threatening consequences.
Do not 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.)
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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.
Do not 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. pet-
rol, solvents, cleaning agents, paints or paper)
can cause deflagration and fire.
Never store or use such materials in the boiler
room or in direct proximity to the heating sys-
tem.
!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 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
contractor.
Auxiliary components, spare and wearing parts
!Please note
Components not tested with the heating system
may damage the system or affect its function.
Only allow qualified contractors to carry out
installation or replacement work.
Safety instructions
For your safety (cont.)
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1. Liability ................................................................................................................ 7
2. Introductory information Symbols ................................................................................................. 8
Terminology ........................................................................................... 8
Intended use .......................................................................................... 8
Product information ................................................................................ 9
Commissioning ...................................................................................... 9
Your system is preset ............................................................................ 9
Operating principles ............................................................................... 9
3. Operating the Vitotronic
100
Opening the Vitotronic 100 .................................................................... 11
Vitotronic 100 programming unit ............................................................ 11
How to use the controls, Vitotronic 100 ................................................. 11
Symbols on the display .......................................................................... 12
4. Operating the Vitotronic
300-K
Opening the Vitotronic 300-K ................................................................. 13
Vitotronic 300-K programming unit ........................................................ 13
"Help" menu ........................................................................................... 13
Menu, Vitotronic 300-K .......................................................................... 13
■Standard menu ................................................................................... 14
■Extended menu .................................................................................. 14
How to use the controls, Vitotronic 300-K .............................................. 14
5. Vitotronic 300-K: Central
heating
Required settings (central heating) ........................................................ 16
Selecting a heating circuit ...................................................................... 16
Setting the room temperature ................................................................ 16
■Setting the standard room temperature .............................................. 16
■Setting the reduced room temperature (night setback) ...................... 16
Setting the "Heating program" for central heating .............................. 17
Setting the time program for central heating .......................................... 17
Setting the "Heating curve" ................................................................. 18
■Tips for setting the "Slope" and "Level": .......................................... 18
Switching off central heating .................................................................. 19
Adjusting the room temperature temporarily .......................................... 19
■Setting "Party mode" ........................................................................ 19
■Ending "Party mode" ........................................................................ 19
Reducing the room temperature temporarily ......................................... 19
■Setting "Economy mode" ................................................................. 20
■Ending "Economy mode" ................................................................. 20
Energy saving function for longer absences .......................................... 20
■Setting the "Holiday program" ......................................................... 20
■Cancelling or deleting a "Holiday program" ..................................... 21
6. Vitotronic 300-K: DHW
heating
Setting the DHW temperature ................................................................ 22
Setting the "Heating program" for DHW heating ................................. 22
Setting the time program for DHW heating ............................................ 22
■Deleting a time phase ......................................................................... 23
■Increased DHW hygiene ..................................................................... 23
■DHW heating once, outside the time program .................................... 24
■Setting a time program for the DHW circulation pump ....................... 24
Switching off DHW heating .................................................................... 24
■You do not want to heat any rooms or DHW. ...................................... 24
■You do not want DHW, but do want to heat the rooms. ...................... 25
7. Further adjustments Setting the "Boiler sequence" ............................................................. 26
Setting the display "Contrast" .............................................................. 26
Setting the display "Brightness" .......................................................... 26
Entering names for the heating circuits ................................................. 26
Setting the "Time" and "Date" .............................................................. 27
Setting the "Language" ........................................................................ 27
Index
Index
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Setting the "Temperature unit" (°C/°F) ................................................ 27
■Vitotronic 100 ...................................................................................... 27
■Vitotronic 300-K .................................................................................. 27
Restoring factory settings ...................................................................... 27
■Vitotronic 100 ...................................................................................... 27
■Vitotronic 300-K .................................................................................. 28
8. Checks Checking information ............................................................................. 29
■Vitotronic 100, checks for each boiler ................................................. 29
■Vitotronic 300-K, checks for the heating system ................................. 29
Checking service messages .................................................................. 30
■Vitotronic 100 ...................................................................................... 30
■Vitotronic 300-K .................................................................................. 30
Checking fault messages ....................................................................... 30
■Vitotronic 100 ...................................................................................... 30
■Vitotronic 300-K .................................................................................. 31
9. Emissions test mode ................................................................................................................ 32
10. Switching on and off Control unit controls ............................................................................... 33
■Vitotronic 100 controls ........................................................................ 33
■Vitotronic 300-K controls ..................................................................... 33
Switching off the heating system ........................................................... 34
■With frost protection monitoring .......................................................... 34
■Without frost protection monitoring (shutdown) .................................. 34
Switching on the heating system ........................................................... 34
11. What to do if... Rooms are too cold ................................................................................ 36
Rooms are too hot ................................................................................. 36
There is no hot water ............................................................................. 37
The DHW is too hot ............................................................................... 37
"OFF" is displayed at the Vitotronic 100 ................................................ 38
"ë" is displayed at the Vitotronic 100 .................................................... 38
"ã" is displayed at the Vitotronic 100 .................................................... 38
"ã" flashes and "Fault" is displayed at the Vitotronic 300-K ................. 38
"Controls locked out" is displayed at the Vitotronic 300-K ..................... 38
"External hook-up" is displayed at the Vitotronic 300-K ......................... 38
"Central control" is displayed at the Vitotronic 300-K ............................ 38
"External program" is displayed at the Vitotronic 300-K ........................ 38
12. Maintenance ................................................................................................................ 39
13. Appendix Menu overview Vitotronic 300-K ............................................................ 40
Terminology ........................................................................................... 43
14. Keyword index ................................................................................................................ 47
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 Vitocom 100, type LAN 1 and
Vitocom 300, type LAN 3 or the corresponding internet
services. No liability is accepted for losses resulting
from inappropriate 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.
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 Vitotronic control unit, some terminology
is explained. This information can be found in chapter
"Terminology" in the Appendix.
Intended use
The device is intended to control only Viessmann
medium sized and industrial/commercial boilers with oil
or gas burners, in line with the intended use of those
appliances. Observe the relevant installation, service
and operating instructions.
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 function.
Introductory information
Symbols
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These instructions describe the following control units:
■Vitotronic 100, type GC7B and type HC1B
Control of the boiler water temperature for the
respective boiler in the cascade
■Vitotronic 300-K, type MW1B and type MW2B
Weather-compensated control of a multi boiler sys-
tem (cascade)
The Vitotronic 100, type GC7B and type HC1B, is
designed to control the boiler water temperature of the
respective boiler in the cascade.
The Vitotronic 300-K, type MW1B and type MW2B, is
designed for weather-compensated control of multi
boiler systems (cascades).
In multi boiler systems, boiler water temperatures can
vary between individual boilers. The common flow tem-
perature for the heating system is specified by the
Vitotronic 300-K, using weather compensation.
Commissioning
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 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 [where applicable] will also provide you with
information on additional activities concerning your
combustion equipment (such as regular testing, clean-
ing, etc.).
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
■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).
DHW heating
■Between 05:30 and 22:00 h, the DHW is heated to a
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 begun before 22:00 h is termina-
ted.
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 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.
Operating principles
Each boiler is equipped with its own control unit. These
control units are regulated by a higher ranking
weather-compensated cascade control unit.
■You can make specific settings and call up informa-
tion about a boiler at each Vitotronic 100.
■You can make settings and call up information about
your heating system at the Vitotronic 300-K.
Introductory information
Product information
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Other control devices:
If remote control units are installed in your rooms, you
can also adjust the settings at the remote control units.
Remote control operating instructions
Introductory information
Operating principles (cont.)
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3 4 8°C
s A
Fig. 1
Vitotronic 100 programming unit
34 8°C
A
Fig. 2
Takes you to the previous step in the menu or
cancels a setting that has been started.
Cursor buttons
Scrolls through the menu or adjusts values.
OK Confirms your selection or saves the setting.
No function.
Enables you to call up the menu for settings and
checks.
How to use the controls, Vitotronic 100
In multi boiler systems, each Vitotronic 100 indicates
the boiler number on the default display. The follow-
ing example shows the boiler water temperature as
indicated by boiler 3.
34 8°C
Fig. 3
Press .
Takes you to the menu for settings and checks.
Note
If a boiler is not operational, "OFF" appears on the dis-
play instead of the boiler water temperature.
Operating the Vitotronic 100
Opening the Vitotronic 100
5592675

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These icons are not always displayed, but appear sub-
ject to the system version and the operating status.
Flashing displays indicate that modifications can be
made.
Menu
Information
Further settings
Emissions test mode
Operating program
Standby mode with frost protection monitoring
The boiler is available to the cascade control unit
for heat production.
Messages
Service message
The service interval has expired.
Fault message
For type HC1B only:
Burner fault
Displays
Circulation pump at output 20 is running (only for
type HC1B)
Burner in operation
Factory settings
Operating the Vitotronic 100
Symbols on the display
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A
Fig. 4
ACover flap
The programming unit is located behind the cover flap.
To open, pull the top edge of the hinged cover forward.
Vitotronic 300-K programming unit
Boiler
1423
Boiler sequence
Common flow temp 40°C
Fig. 5
Takes you to the previous step in the menu or
cancels a setting that has been started.
Cursor buttons
Scrolls through the menu or adjusts values.
OK Confirms your selection or saves the setting.
Calls up additional information regarding the
selected menu option.
Calls up the extended menu.
"Help" menu
This gives you a short guide explaining the controls
and providing information about heating circuit selec-
tion (see page 16).
Call up the short guide as follows:
■If the screensaver is active (see page 14):
Press .
■From anywhere in the menu:
Press until the standard menu is shown (see the
following chapter).
Press .
Menu, Vitotronic 300-K
There are 2 control levels available, the "Standard
menu" and the "Extended menu".
The menu overview can be found on page 40.
Operating the Vitotronic 300-K
Opening the Vitotronic 300-K
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Standard menu
Call up the standard menu as follows:
■If the screen saver is active (see page 14):
Press OK.
■From anywhere in the menu:
Press repeatedly until the standard menu
appears.
In the standard menu, the number of boilers installed
in the heating system is shown in a specific order
(boiler sequence). You can change the boiler
sequence (see page 26).
The meanings of the icons are as follows:
■Solid white boiler:
The boiler has been enabled by the cascade control
unit and is operating.
■Solid grey boiler:
The boiler is available for generating heat but has
not been enabled by the cascade control unit.
■Solid black boiler, crossed out:
The boiler is not available for generating heat.
Extended menu
Call up the extended menu as follows:
■If the screen saver is active (see page 14):
Press OK and then .
■From anywhere in the menu:
Press .
Note
Your contractor can block operation for the extended
menu. In this case, you can only check fault mes-
sages.
Menu
Solar energy
Continue with
DHW
Heating
System
OK
A
Fig. 6
ADialogue line
How to use the controls, Vitotronic 300-K
The screen saver will become active if you have not
adjusted any settings on the programming unit for a
few minutes. The display brightness is reduced.
1. Press OK. This takes you to the standard menu
(see page 14).
2. Press . Takes you to the extended menu (see
page 14).
The selected menu option is highlighted in white.
The dialogue line A (see diagram on page 14)
then shows the necessary instructions.
The following diagram shows how to make settings
with different dialogue lines, using the set room tem-
perature setting as an example.
Operating the Vitotronic 300-K
Menu, Vitotronic 300-K (cont.)
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Vv
or
Ú
OK
OK
Heating circ. 1
Economy mode
ÙÚ
Party mode
HC1
Continue with
Htg circ. selection ÙÚ
HC2
Was selected
Heating circuit 2
Set room temperature HC1
20°C
Change with (
Set room temperature HC1
22°C
Adopt with OK
OK
ê
ê
ÙÚ
HC1
Heating circuit 2
Economy mode
ÙÚ
Party mode
HC1
Continue with OK
ê
ê
ÙÚ
HC2
Set reduced room temp
Set reduced room temp
Set room temperature
Set room temperature
Vv
or
Set room temperature HC2
20°C
Change with (
Set room temperature HC2
22°C
Adopt with OK
OK / /
v v
Heating circuit 1
Economy mode
Party mode
HC1
Continue with OK
ê
ê
Set reduced room temp
Set room temperature
/
v v
OK
Boiler
1423
Boiler sequence
Common flow temp 40°C
Menu
Continue with OK
Solar energy
DHW
Boiler sequence
Heating
/v
OK
OK
Set room temperature HC1
22°C
Adopted
OK
Set room temperature HC2
22°C
Adopted
Fig. 7
Operating the Vitotronic 300-K
How to use the controls, Vitotronic 300-K (cont.)
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This setting can only be made at the Vitotronic 300-K.
If you require central heating, check the following
points:
■Have you selected the heating circuit?
For settings, see the next chapter.
■Have you set the required room temperature?
For settings, see page 16.
■Have you selected the correct heating program?
For settings, see page 17.
■Have you set the required time program?
For settings, see page 17.
Note
Your contractor can, for example, enable the "Screed
function" to dry the screed in your new building or
extension. Your settings for central heating are deacti-
vated for the duration of the screed drying. For a more
detailed explanation, see chapter "Terminology" in the
appendix.
In the extended menu, you can scan the selected heat-
ing program under "Information" (see chapter "Scan-
ning information", "Heating circuit ..." group).
Selecting a heating circuit
This setting can only be made at the Vitotronic 300-K.
The heating of all rooms can, if necessary, be split
over several heating circuits.
■In the case of heating systems with several heating
circuits, for all central heating settings, first select
the heating circuit where you want to make a
change.
■This selection is not possible in heating systems with
only one heating circuit.
Example:
■"Heating circuit 1" is the heating circuit for the offi-
ces on the ground floor.
■"Heating circuit 2" is the heating circuit for the offi-
ces on the first floor.
The heating circuits are marked at the factory as
"Heating circuit 1" (HC1), "Heating circuit 2" (HC2)
and "Heating circuit 3" (HC3).
If you or your contractor have renamed the heating cir-
cuits, e.g. as "Ground floor" or similar, that name is
displayed instead of "Heating circuit ..." (see
page 26).
Extended menu
1.
2. "Heating"
3. OK to confirm
4. / for the required heating circuit.
Setting the room temperature
This setting can only be made at the Vitotronic 300-K.
Setting the standard room temperature
Factory setting: 20 °C
Extended menu
1.
2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. OK to confirm
6. "Set room temperature"
7. OK to confirm
8. Set the required value.
Setting the reduced room temperature (night setback)
Factory setting: 3 °C Extended menu
1.
Vitotronic 300-K: Central heating
Required settings (central heating)
5592675

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2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. OK to confirm
6. "Set red. room temp"
7. OK to confirm
8. Set the required value.
The rooms are heated to this temperature:
■Between the time phases for standard heating mode
(see page 17).
■In the holiday program (see page 20).
Setting the "Heating program" for central heating
This setting can only be made at the Vitotronic 300-K.
Factory setting: "Heating and DHW"
Extended menu
1.
2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. OK to confirm
6. "Heating program"
7. OK to confirm
8. "Heating and DHW"
■The rooms of the selected heating circuit are heated
in accordance with the room temperature and time
program settings.
■DHW is reheated in accordance with the set DHW
temperature and time program (see chapter "DHW
heating").
Setting the time program for central heating
■The time program for central heating is made up of
time phases. One time phase from 06:00 to 22:00
for every day of the week is set at the factory.
■You can set the time program individually, to be the
same for every day of the week or different:
You can select up to 4 time phases per day for
standard heating mode. Set the start and end points
for each time phase. Between these time phases,
the rooms are heated with the reduced room temper-
ature (see chapter "Setting the room temperature for
reduced heating mode").
■When setting, bear in mind that your heating system
requires some time to heat the rooms to the required
temperature.
■In the extended menu, you can scan the current time
program under "Information" (see chapter "Scan-
ning information", "Heating circuit ..." group).
Extended menu:
01.
02. "Heating"
03. OK to confirm
04. Select the heating circuit if necessary.
05. OK to confirm
06. "Heating time program"
07. OK to confirm
08. Select part of the week or a day.
09. Select the time phase !, ?, § or $.
10. Set the start and end points for the relevant time
phase.
11. Press to exit the menu.
Note
If you want to terminate a time phase setting process
prematurely, press repeatedly until the required dis-
play appears.
Vitotronic 300-K: Central heating
Setting the room temperature (cont.)
5592675

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Example shown:
■Time program for Monday to Friday ("Mo-Fr")
■Time phase !:
From 05:00 to 08:30
■Time phase ?:
From 16:30 to 23:00
Heating
Select with (
HC1
Mo-Fr
?16:30 - 23:00 u
0 2 4 6 8 10 12 14 16 18 20 22 24
!05:00 - 08:30 u
Normal
Normal
!?
Fig. 8
Example:
You want to set the same time program for every day
except Monday:
Select the period "Monday–Sunday" and set the time
program.
Then select "Monday" and set the time program for
this.
Deleting a time phase
Set the time for the end point to the same time that
was set for the start point. The display shows the
selected time phase "- - : - -".
Setting the "Heating curve"
This setting can only be made at the Vitotronic 300-K.
Your system's heating characteristics are affected by
the slope and the level of the selected "heating
curve". Further information about the "Heating
curve" can be found under "Terminology" on
page 44.
Factory setting:
■Slope: 1.4
■Heating curve level: 0
■Standard room temperature (set value): 20 °C
■Reduced room temperature (set value): 3 °C
1.
2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. OK to confirm
6. "Heating curve"
7. OK to confirm
8. "Slope" or "Level"
Note
Tips on when and how to change the "Heating
curve" slope and level are displayed by pressing
"?".
9. Set the required value.
Tips for setting the "Slope" and "Level":
Heating characteristics Measure
Living space is too cold during the winter. Adjust the "Slope" of the "Heating curve" to the next
highest value.
Living space is too warm during the winter. Adjust the "Slope" of the "Heating curve" to the next
lowest value.
Living space is too cold in spring/autumn and winter. Set the "Level" of the "Heating curve" to a higher val-
ue.
Living space is too warm in spring/autumn and winter. Set the "Level" of the "Heating curve" to a lower val-
ue.
Vitotronic 300-K: Central heating
Setting the time program for central heating (cont.)
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Heating characteristics Measure
Living space is too cold in spring/autumn, but warm
enough in winter.
Adjust the "Slope" of the "Heating curve" to the next
lowest value and the "Level" to a higher value.
Living space is too warm in spring/autumn, but warm
enough in winter.
Adjust the "Slope" of the "Heating curve" to the next
highest value and the "Level" to a lower value.
Switching off central heating
Extended menu
1.
2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. OK to confirm
6. "Heating program"
7. OK to confirm
8. "Only DHW" (summer mode, no central heating)
or
"Standby mode" (frost protection monitoring)
Adjusting the room temperature temporarily
This setting can only be made at the Vitotronic 300-K.
The "Party mode" function allows you to change the
room temperature for a few hours, e.g. if guests stay
until late in the evening. You do not have to change
any existing control settings. With this function, the
DHW is reheated to the specified set temperature.
■The rooms are heated to the required temperature.
■The DHW is reheated to the specified set tempera-
ture.
■The DHW circulation pump is switched on (if instal-
led).
Setting "Party mode"
Extended menu
1.
2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. "Party mode"
6. OK to confirm
7. Set the room temperature required during party
mode with / .
8. OK to confirm
Ending "Party mode"
■Automatically when the system switches to standard
heating mode in accordance with the time program.
or
■In the extended menu, set "Party mode" to "OFF".
Reducing the room temperature temporarily
This setting can only be made at the Vitotronic 300-K. To save energy, you can reduce the room temperature
in standard heating mode. For example, if you are
going out for a few hours.
Vitotronic 300-K: Central heating
Setting the "Heating curve" (cont.)
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Setting "Economy mode"
Extended menu
1.
2. "Heating"
3. OK to confirm
4. Select the heating circuit if required (see page 16).
5. OK to confirm
6. "Economy mode"
7. OK to confirm
Ending "Economy mode"
■Automatically when the system switches to reduced
heating mode in accordance with the time program.
or
■In the extended menu, set "Economy mode" to
"OFF".
Energy saving function for longer absences
To save energy, for example if you are on holiday for a
long time, you can enable the "Holiday program".
This setting can only be made at the Vitotronic 300-K.
Note
The control unit is set up so that the "Holiday pro-
gram" applies to all heating circuits. If you want to
make changes to this, please consult your contractor.
The "Holiday program" has the following effects on
the heating circuits and DHW heating:
■Central heating:
–For heating circuits in the "Heating and DHW"
operating program:
In these heating circuits, the rooms are heated to
the selected reduced room temperature (see
page 16).
–For heating circuits in the "Only DHW" operating
program:
No central heating in these heating circuits.
If the "Only DHW" operating program is selected
for all heating circuits, frost protection monitoring is
only enabled for the boiler and DHW cylinder.
■DHW heating:
DHW heating is switched off; frost protection moni-
toring for the DHW cylinder is active.
The "Holiday program" starts at 00:00 on the day fol-
lowing your departure and ends at 00:00 on the day of
your return. This means that on the departure and
return dates, the time program specified for those days
is active (see page 17).
Setting the "Holiday program"
1.
2. "Heating"
3. OK to confirm
4. "Holiday program"
5. OK to confirm
6. Set the required departure and return dates.
7. OK to confirm
Vitotronic 300-K: Central heating
Reducing the room temperature temporarily (cont.)
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