Viessmann VITOLIGNO 300-C Operating instructions

Operating instructions
for the system user
Viesmann
Pellet boiler, 60 to 101 kW, with weather-compensated Ecotronic boiler and
heating circuit control unit
VITOLIGNO 300-C
5777 169 GB 3/2016 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 of 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 as well as in any risks aris-
ing 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 electrical equipment must only be car-
ried 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 change or remove attachments or fitted
accessories.
■Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
Never touch the hot surfaces inside the appli-
ance or those of uninsulated pipes, fittings or
flue pipes.
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.
■Use a tested fire extinguisher, class ABC.
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.
Conditions for siting
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).
Safety instructions
For your safety
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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 vacuum 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
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.)
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1. Introductory information Symbols ................................................................................................. 7
Terminology ........................................................................................... 7
Intended use .......................................................................................... 7
Appliance description ............................................................................. 8
Ordering fuel .......................................................................................... 8
■Approved pellets ................................................................................. 8
Commissioning ...................................................................................... 8
Recurring emissions tests ...................................................................... 9
Your system has been preset ................................................................ 9
Energy saving tips ................................................................................. 9
2. About the controls Programming unit .................................................................................. 11
"Help" menu ........................................................................................... 11
Standard menu ...................................................................................... 11
Extended menu ...................................................................................... 12
How to use the controls ......................................................................... 13
Screensaver ........................................................................................... 13
3. Start-up/shutdown Heat-up preparations ............................................................................. 15
Switching the heating system on and off ............................................... 15
Steps to take in the event of overheating .............................................. 15
■High limit safety cut-out ...................................................................... 15
4. Central heating Room temperature ................................................................................. 17
■Required settings ................................................................................ 17
■Selecting a heating circuit ................................................................... 17
■Setting the standard room temperature .............................................. 17
■Setting the reduced room temperature (night setback) ...................... 18
Operating program ................................................................................. 18
■Setting the operating program for central heating .............................. 18
Time program ........................................................................................ 18
■Setting the time program for central heating ...................................... 18
■Setting time phases ............................................................................ 19
■Deleting a time phase ......................................................................... 19
■Restoring time phases to factory settings ........................................... 20
Heating curve ......................................................................................... 20
■Adjusting the heating curves .............................................................. 20
Stopping central heating ........................................................................ 21
5. Comfort and energy sav-
ing functions
Comfort function "Party mode" .............................................................. 23
■Setting "Party mode" ........................................................................... 23
■Terminating "Party mode" ................................................................... 23
Energy saving function "Economy mode" .............................................. 23
■Setting "Economy mode" .................................................................... 23
■Terminating "Economy mode" ............................................................. 24
Energy saving function "Holiday program" ............................................ 24
■Setting "Holiday program" ................................................................... 24
■Changing "Holiday program" .............................................................. 25
■Terminating "Holiday program" ........................................................... 25
6. DHW heating DHW temperature .................................................................................. 26
■Required settings ................................................................................ 26
■Setting the DHW temperature ............................................................ 26
Operating program ................................................................................. 26
■Setting the operating program for DHW heating ................................ 26
Time program ........................................................................................ 26
■Setting the time program for DHW heating ......................................... 26
■Setting time phases ............................................................................ 27
■Deleting a time phase ......................................................................... 27
■Resetting time phases to factory settings ........................................... 27
Index
Index
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Stopping DHW heating .......................................................................... 27
7. Heating water buffer cylin-
der
Setting the operating program for the heating water buffer cylinder ...... 29
Setting the time program for the heating water buffer cylinder .............. 29
■Setting time phases ............................................................................ 30
■Deleting a time phase ......................................................................... 30
Heating curve ......................................................................................... 30
■Adjusting the curves for the heating water buffer cylinder .................. 30
8. Fuel supply Blocking times for automatic fuel supply ................................................ 32
■Setting blocking times ......................................................................... 32
■Deleting blocking times ....................................................................... 32
■Setting the suction wand assignment ................................................. 32
■Purging and/or resetting suction wands ............................................. 33
9. Further adjustments Setting the display contrast .................................................................... 35
Setting the brightness of the display ...................................................... 35
Assigning names to heating circuits ...................................................... 35
Setting the time and date ....................................................................... 36
Language selection ................................................................................ 36
Setting the temperature unit (°C/°F) ...................................................... 36
Setting the boiler water temperature ...................................................... 36
Setting the minimum system temperature ............................................. 37
Restoring factory settings ...................................................................... 37
10. Checks Calling up information ............................................................................ 38
■Calling up information in the standard menu ...................................... 38
■Calling up information in the extended menu ..................................... 38
■Calling up temperatures ..................................................................... 39
Calling up fault messages ...................................................................... 40
11. Shutdown Shutting down the heating system for an extended period .................... 42
Shutdown ............................................................................................... 42
12. What to do if... Rooms are too cold ................................................................................ 43
Rooms are too hot ................................................................................. 43
There is no hot water ............................................................................. 44
The DHW is too hot ............................................................................... 44
"Fault" is shown in the display ............................................................... 44
13. Maintenance Heating system inspection and maintenance ........................................ 45
■Boiler .................................................................................................. 45
■DHW cylinder (if installed) .................................................................. 45
■Safety valve (DHW cylinder) ............................................................... 45
■Drinking water filter (if installed) ......................................................... 45
Replacing fuses ..................................................................................... 45
Cleaning information .............................................................................. 45
Maintenance intervals ............................................................................ 46
Emptying the ash box ............................................................................ 46
■Vitoligno 300-C, 60 to 70 kW .............................................................. 46
■Vitoligno 300-C, 80 to 101 kW ............................................................ 49
Cleaning the light barriers ...................................................................... 50
■Vitoligno 300-C, 60 to 70 kW .............................................................. 50
■Vitoligno 300-C, 80 to 101 kW ............................................................ 51
14. Appendix Terminology ........................................................................................... 52
Efficient and clean operation ................................................................. 53
Information on disposal .......................................................................... 53
■Disposal of packaging ........................................................................ 53
■Final decommissioning and disposal of the heating system ............... 53
Index
Index
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15. Keyword index ................................................................................................................ 54
Index
Index (cont.)
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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 boiler, 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 only intended to be installed and
operated 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 the heating of 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.
Introductory information
Symbols
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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 operated for longer periods when
open) is prohibited and will result in an exclusion of lia-
bility. 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) or if other fuels than those intended for this
appliance are used.
Appliance description
The Vitoligno 300-C is an automatic boiler suitable for
burning wood pellets.
Ordering fuel
Approved pellets
To EN ISO 17225-2
Quality A1
Diameter 6 mm
Delivery methods
Pellets are sold in 15 to 30 kg sacks, in bulk cartons up
to 1000 kg and in bulk.
Loose pellets are transported by silo tanker and blown
into the storage room via a hose system.
Commissioning
Commissioning and adjusting the control unit to local
conditions and the building characteristics must be car-
ried out by your heating contractor.
Installation and service instructions
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.).
Prepare and carry out the emissions test according to
the 1st BImSchV:
Installation and service instructions
Introductory information
Intended use (cont.)
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■Your heating contractor must prepare the boiler for
this test.
■Notify your heating contractor approx. 2 weeks prior
to the next emissions test being due.
■Ensure that suitable fuel in line with the operating
instructions is available.
Prepare and carry out the emissions tests according to
the 1st BImSchV:
Service instructions
Your system has been preset
Your boiler's control unit is set at the factory.
■The heating circuits are set to the "Heating" operat-
ing program.
■The domestic hot water heating is set to the "DHW"
operating program.
Your heating system is therefore ready for operation:
Central heating
■From 06:00 to 22:00 h your rooms are heated to
22 °C "Set room temp" (standard heating mode).
■From 22:00 to 06:00 h, your rooms will be heated to
"Set red room temp" (room temperature for
reduced heating mode, night setback).
■Your heating contractor can make further settings for
you during commissioning.
You can change any settings at any time to suit your
individual requirements (see from page 17).
DHW heating
■The DHW is heated to 60 °C "Set DHW tempera-
ture" every day from 00:00 to 24:00 h.
■Your heating contractor can make further settings for
you during commissioning.
You can change any settings at any time to suit your
individual requirements (see from page 26).
Wintertime/summertime changeover
■This changeover is automatic.
Time and date
■The day and time were set by your heating contrac-
tor during commissioning.
Power failure
■All data is retained if there is a power failure.
Energy saving tips
Use the adjustment options offered by your boiler con-
trol unit:
■For central heating, select the operating program
that meets your current requirements:
–For short periods of absence (a few hours, such as
shopping trips), select "Economy mode" (see
page 23).
The room temperature is reduced for as long as
economy mode is active.
–If you are going away, set the "Holiday program"
(see page 24).
The operating program for central heating is auto-
matically set to "Standby mode" while the holiday
program is active.
–If you do not want to heat the rooms and you do
not require DHW for an extended period, set the
"Standby mode" operating program for the rele-
vant heating circuits and for DHW.
–See page 18 for the relevant heating circuits
–See page 26 for DHW heating
■Never set the DHW cylinder temperature excessively
high (see page 26).
You can further save energy by taking the following
steps:
Introductory information
Recurring emissions tests
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AC
E
B
D
Fig. 1
■Correct ventilation/airing:
Open windows A wide for a short time. During this
time, close thermostatic valves B.
■Do not overheat the rooms; aim for a room tempera-
ture of 20 °C. Every degree of room temperature
reduction saves up to 6 % on your heating bills.
■Close shutters (where installed) on the windows at
dusk.
■Ensure that thermostatic valves B are properly
adjusted.
■Never cover or obstruct radiators C or thermostatic
valves B.
■Make use of the setting options of control unit D,
e.g. "standard room temperature" alternating with
"reduced room temperature".
■Set the DHW temperature of DHW cylinder E at
control unit D.
■Only enable the DHW circulation pump (via switching
times at the control unit) when DHW is being drawn
off.
■Check your hot water consumption: A shower
requires less energy than a full bath.
Introductory information
Energy saving tips (cont.)
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Buffer
Heating
DHW
Boiler
Buffer drawing
Select with (
B
A
Fig. 2
ADisplay of operating phase
BDialogue line
Takes you to the previous step in the menu or can-
cels a setting that has been started.
Cursor keys
Scrolls through the menu or adjusts values.
dTo confirm your selection or save the setting
you’ve made.
Calls up the help text relevant to the selected
menu point.
Calls up the extended menu.
The selected menu point is highlighted in white.
Dialogue line B shows instructions on what to do.
There are 2 control levels available, the standard
menu and the extended menu.
"Help" menu
You can view an abridged guide giving an explanation
of the controls and information about heating circuit
selection.
Call up the short guide as follows:
■From anywhere in the menu:
Call up the "Help" menu point by pressing "?".
Standard menu
Buffer
Heating
DHW
Boiler
Buffer drawing
Select with (
Fig. 3
You can call up the settings you require most fre-
quently from the standard menu:
■Setting the set room temperature
■Setting an operating program
■Setting the comfort function "Party mode"
■Setting the energy saving function "Economy mode"
■Calling up the operating status
■Calling up temperatures, e.g. outside temperatures
■Calling up information
■Calling up warning, fault and information messages
Call up the standard menu as follows:
■If the screensaver is active:
Press any key.
■From anywhere in the menu:
Press repeatedly until the standard menu
appears.
About the controls
Programming unit
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Menu
Select with (
Boiler
Heating
Charging
Buffer
Fig. 4
In the extended menu, you can call up and adjust the
settings of the control unit's range of less frequently
required functions, holiday program and time pro-
grams for example.
Call up the extended menu as follows:
■If the screensaver is active:
Press any key followed by .
■From anywhere in the menu:
Press .
About the controls
Extended menu
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Example: Procedure for settings with different dialogue lines
Vv
or
OK
Ú
OK
OK
DHW
Additional boiler
Information
48°C
Heating
Boiler water temp
Select with (
OK
Heating circuit 1
Operating program
Party mode
Economy mode
20°C
ÙÚ
Set room temperature
HC1
ÙÚ
HC1
Select with (
Heating circuit 2
Operating program
Party mode
Economy mode
20°C
ÙÚ
Set room temperature
HC2
ÙÚ
HC2
Select with (
Heating circuit 1
Operating program
Party mode
Economy mode
22°C
ÙÚ
Set room temperature
HC1
Heating circuit 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
Set room temperature HC1
22°C
Adopted
Select with (
22°C
Fig. 5
Screensaver
■The screensaver will become active if you have not
adjusted any settings on the programming unit for a
few minutes.
■Depending on the operating phase, the screensaver
will inform you about the current values of the boiler
or heating water buffer cylinder.
About the controls
How to use the controls
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Screensaver during operating phase "Boiler load operation"
Boiler load operation
Overview Boiler
73°C 56°C
Flue gas
135°C
25%
A
H
B
C
D
E
F
G
Fig. 6
ABoiler flow temperature
BOperating phase
CBoiler return temperature
DFlue gas temperature
EDialogue line
FBoiler heating output
GFeed pump rate
HPellet hopper fill level
Screensaver during operating phase "Buffer drawing"
Buffer drawing
Overview Buffer
53%
A
B
73°C
62°C
34°C
E
F
D
C
Fig. 7
AOperating phase
BHeating water buffer cylinder heat-up condition in
%
CDialogue line
DBuffer temperature, bottom
EBuffer temperature, centre
FBuffer temperature, top
Press any key. This takes you to the standard menu
(see page 11).
About the controls
Screensaver (cont.)
5777 169 GB

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Fig. 8
1. Check the heating system pressure at pressure
gauge A:
The system pressure is too low if the indicator
points to the area below the red field. Top up with
water or notify your local heating contractor.
Minimum system pressure: 1.0 bar (0.1 MPa)
2. Check that the vents in the installation room are
unrestricted.
Note
With open flue operation, the combustion air is
drawn from the installation room.
3. Verify that the heating system or the heating water
buffer cylinder is drawing off heat. Open the ther-
mostatic valves on the radiators if necessary.
4. Ensure that all heating flow and heating return
shut-off gate valves are open.
5. Check that all covers on the boiler are closed.
6. Ensure that power is supplied to the boiler.
Switching the heating system on and off
To switch the heating system on and off, press
"START/STOP" on the boiler.
Steps to take in the event of overheating
The high limit safety cut-out protects your boiler from
overheating.
Note
Modifications to this component are not permitted.
They will render all guarantee/warranties void.
Replace faulty components only with genuine spare
parts from Viessmann.
Note
If the boiler overheats again after a short time or over-
heats regularly, notify your heating contractor.
High limit safety cut-out
The reset button of the high limit safety cut-out is loca-
ted behind the boiler casing.
Triggering the function
If the boiler water temperature exceeds 100 °C the
high limit safety cut-out responds.
Note
The high limit safety cut-out can only be reset man-
ually.
Cancelling the function
Note
The high limit safety cut-out can only be reset
(unlocked) once the boiler water temperature has
reached approx. 70 °C.
After each triggering of the high limit safety cut-out,
check that the thermally activated safety valve is reset.
Start-up/shutdown
Heat-up preparations
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Vitoligno 300-C, 60 to 70 kW
AB
Fig. 9
1. Slide cover A on the programming unit to the
right.
2. Press green button B on the high limit safety cut-
out.
A quiet "click" will be audible. The high limit safety
cut-out has been reset.
3. Close cover A on the programming unit.
4. Acknowledge the excess temperature on the pro-
gramming unit of the control unit with d.
Vitoligno 300-C, 80 to 101 kW
A
Fig. 10
1. Open the front door.
2. Press green button A on the high limit safety cut-
out.
A quiet "click" will be audible. The high limit safety
cut-out has been reset.
3. Close the front door.
4. Acknowledge the excess temperature on the pro-
gramming unit of the control unit with d.
Start-up/shutdown
Steps to take in the event of overheating (cont.)
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Required settings
If you require central heating, check the following
points:
■Have you selected the heating circuit?
For settings, see chapter "Selecting a heating circuit"
on page 17.
■Have you set the required room temperature?
For settings, see page 17.
■Have you set the correct operating program?
For settings, see page 18.
■Have you set the required time program?
For settings, see page 18.
Selecting a heating circuit
The heating of your interior can 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 for which you want to make a change.
■This selection is not available in heating systems
with only one heating circuit.
Example:
■"Heating circuit 1" is the heating circuit for the
rooms occupied by you.
■"Heating circuit 2" is the heating circuit for the
rooms of a separate apartment.
Ú
Htg circuit selection HC2
Was selected
Heating circuit 2
Heating circuit 1 HC1
Economy mode
Select with (
Party mode
Heating program
Set room temp.
ß
21 °C
ÙÚ
HC2
ÙÚ
HC1
Fig. 11
The heating circuits are marked at the factory as
"Heating circuit 1" (HC1) and "Heating circuit 2"
(HC2).
If you or your heating contractor have renamed the
heating circuits (as "Apartment" for example), that title
is then displayed instead of "Heating circuit 1" (see
page 35).
Setting the standard room temperature
Press the following keys:
1. ärepeatedly until the standard menu is dis-
played.
2. |/~to select "Heating".
3. dto confirm.
4. Ù/Úto select "Heating circuit 1" (HC1), "Heat-
ing circuit 2" (HC2), "Heating circuit 3"
(HC3) or "Heating circuit 4" (HC4, if instal-
led).
5. |/~for "Set room temp".
6. dto confirm.
7. |/~for the required temperature.
8. dto confirm.
"Adopted" appears briefly in the dialogue
line of the display.
Central heating
Room temperature
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Setting the reduced room temperature (night setback)
Heating circuit 1
Select with
Set red. room temp.
Set room temp.
Heating program
Party mode
HC1
Fig. 12
Press the following keys:
1. åfor the "Extended menu".
2. |/~to select "Heating".
3. dto confirm.
4. Ù/Úto select "Heating circuit 1" (HC1), "Heat-
ing circuit 2" (HC2), "Heating circuit 3"
(HC3) or "Heating circuit 4" (HC4, if instal-
led).
5. |/~for "Set red room temp".
6. dto confirm.
7. |/~for the required temperature.
8. dto confirm.
"Adopted" appears briefly in the dialogue
line of the display.
Operating program
Setting the operating program for central heating
Check if "Heating" is set for the relevant heating cir-
cuit.
Heating circuit 1
Party mode
Economy mode
Set room temp.
HC1
Select with
Heating program
Fig. 13
Press the following keys:
1. ärepeatedly until the standard menu is dis-
played.
2. |/~for "Heating".
3. dto confirm.
4. Ù/Úto select "Heating circuit 1" (HC1), "Heat-
ing circuit 2" (HC2), "Heating circuit 3"
(HC3) or "Heating circuit 4" (HC4, if instal-
led).
5. |/~for "Operating program".
6. dto confirm.
The check mark must be next to "Heating".
If not, proceed as follows:
7. |/~for "Heating".
8. dto confirm.
The rooms of the selected heating circuit are heated in
accordance with the room temperature and time pro-
gram settings.
Time program
Setting the time program for central heating
The times at which the heating circuit delivers central
heating with standard or reduced room temperature
depends on the setting of the switching times for the
relevant day (4 possible time phases).
■If one or more time phases are set, central heating
with standard room temperature is active during
those times.
■If no time phases are set, central heating is carried
out to the reduced room temperature for the whole
day.
Central heating
Room temperature (cont.)
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■For central heating, up to 4 changes between stand-
ard and reduced room temperature can be program-
med per day (4 time phases).
■At the factory, time phase ! from 06:00 to 22:00 h
is set for all days of the week. During that time, the
rooms are heated to the standard room temperature.
■You can set switching times individually for the fol-
lowing days or parts of the week:
–The same for every day: Monday to Sunday
–For individual parts of the week: Monday to Friday
and Saturday to Sunday
–For every day individually: Monday, Tuesday, etc.
■In the "Extended menu", you can call up the current
time program under "Information" (see page 38).
Please note when setting the switching times: Your
heating system needs some time to heat rooms to the
required temperature.
Note
For the period between the specified switching times,
the relevant heating circuit is regulated to the standard
room temperature.
Setting time phases
Heating time program
Select with
Monday-Friday
Monday-Sunday
Saturday-Sunday
Monday
HC1
Fig. 14
Press the following keys:
1. åfor the "Extended menu".
2. |/~for "Heating".
3. dto confirm.
4. Ù/Úto select "Heating circuit 1" (HC1), "Heat-
ing circuit 2" (HC2), "Heating circuit 3"
(HC3) or "Heating circuit 4" (HC4, if
installed).
5. |/~for "Heating time program".
6. dto confirm.
7. |/~until the required part of the week or day
appears.
8. dto confirm.
9. |/~to select the time phase.
The relevant time phase is represented by
a number (!, ?, § or $).
Heating HC1
?- -:- - - - -:- - u
Select with
---
(
!u
0 2 4 6 8 10 12 14 16 18 20 22 24
Std
Mo-Su
06:00 - 22:00
Fig. 15
10. dto confirm.
11. |/~to set the start point.
12. dto confirm.
13. |/~to set the end point.
14. dto confirm.
15. To set the beginning and end of further time pha-
ses, proceed as described in steps 9 to 14.
Deleting a time phase
1. Set the time for the end point to the same time that
was set for the start point.
The display shows "- - : - -".
2. Press d to confirm.
Heating HC1
§- -:- - - - -:- - u
0 2 4 6 8 10 12 14 16 18 20 22 24
?- -:- - - - -:- - u
Mo-Fr
Std
Std
Adopt with OK
Fig. 16
Central heating
Time program (cont.)
5777 169 GB

20
Restoring time phases to factory settings
Note
The time phases are only restored to the factory set-
tings when you reset all settings for the selected heat-
ing circuits.
The steps for restoring factory settings can be found
on page 37.
Heating curve
Adjusting the heating curves
■If the room temperature does not meet your require-
ments for a prolonged period of time you can alter
the heating characteristics.
■You alter the characteristics by changing the slope
and level of the heating curve. For more information
regarding the heating curve, see page 21.
■Please observe the modified heating characteristics
over several days (if possible, wait for a major
change in the weather) before making further adjust-
ments.
Changing slope and level
For assistance, use the following table.
Heating characteristics Action Example
The living space is too cold during the
cold season.
Adjust the heating curve slope to the next
highest value (e.g. 1.5).
Slope 1.5
Level 0 K
The living space is too hot during the
cold season.
Adjust the heating curve slope to the next
lowest value (e.g. 1.3).
Slope 1.3
Level 0 K
The living space is too cold during
spring/autumn and during the cold
season.
Adjust the heating curve level to a higher
value (e.g. +3).
Slope 1.4
Level 3 K
The living space is too hot during
spring/autumn and during the cold
season.
Adjust the heating curve level to a lower
value (e.g. −3).
Slope 1.4
Level -3 K
The living space is too cold during
spring/autumn, but warm enough dur-
ing winter.
Adjust the heating curve slope to the next
lower value and the level to a higher val-
ue.
Slope 1.3
Level 3 K
The living space is too hot during
spring/autumn, but warm enough dur-
ing winter.
Set the heating curve slope to the next
higher value and the level to a lower val-
ue.
Slope 1.5
Level -3 K
Press the following keys:
1. åfor the "Extended menu".
2. |/~to select "Heating".
3. dto confirm.
4. Ù/Úto select "Heating circuit 1" (HC1), "Heat-
ing circuit 2" (HC2), "Heating circuit 3"
(HC3) or "Heating circuit 4" (HC4, if
installed).
Central heating
Time program (cont.)
5777 169 GB