Viessmann Vitodens series User manual

Operating instructions
for the system user
VIESMANN
Heating system with the Vitotronic 100 control unit, type HC2A and
HC2B
For constant temperature mode
VITODENS
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2
Please follow these safety instructions closely to prevent accidents and mate-
rial 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 envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These operating instructions are for the
heating system user.
This unit is not designed to be used by
persons (including children) with limited
bodily, sensory or mental capacities, or
lacking experience and/or lacking knowl-
edge, unless they are supervised by a
person responsible for their safety, or
have received instructions from such a
person as to how to use the unit.
!Please note
Children should be supervised.
Ensure that children do not play
with the unit.
Danger
Incorrectly executed work on the
heating system can lead to life-
threatening accidents.
■ Work on gas appliances must
only be carried out by a regis-
tered gas fitter.
■ Work on electrical equipment
must only be carried out by a
qualified electrician.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■ Do not smoke. Prevent naked
flames and sparks. Never
switch lights or electrical appli-
ances ON or OFF.
■ Close the gas shut-off valve.
■ Open windows and doors.
■ Remove all people from the
danger zone.
■ Notify your gas or electricity
supplier and your heating con-
tractor from outside the build-
ing.
■ Shut off the electricity supply to
the building from a safe place
(outside the building).
Safety instructions
For your safety
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If you smell flue gas
Danger
Flue gas can lead to life-threat-
ening poisoning.
■ Shut down the heating system.
■ Ventilate the boiler room.
■ Close all doors in the living
space.
In case of fire
Danger
Fire creates the risk of burning
and explosions.
■ Shut down the heating system.
■ Close the shut-off valves of the
fuel lines.
■ Use a tested fire extinguisher,
class ABC.
Boiler room requirements
!Please note
Incorrect ambient conditions can
lead to damage to the heating
system and put the safe opera-
tion at risk.
■ Ensure ambient temperatures
above 0 ºC and below 35 ºC.
■ Prevent air contamination by
halogenated hydrocarbons
(e.g. as contained in paints,
solvents or cleaning fluids) and
excessive dust (e.g. through
grinding/polishing work).
■ Avoid continuously high humid-
ity levels (e.g. through frequent
drying of washing).
■ Never close existing ventilation
apertures.
Ancillary components, spare and
wearing parts
!Please note
Components that are not tested
with the heating system may lead
to damage to the heating system,
or may affect their various func-
tions.
Installation or replacement work
must only be carried out by quali-
fied personnel.
Safety instructions
For your safety (cont.)
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Introductory information
Commissioning..................................................................................................... 6
Your system is preset at the factory..................................................................... 6
Terminology.......................................................................................................... 6
Tips on saving energy.......................................................................................... 7
Regarding operation
Controls................................................................................................................ 8
How to use the controls........................................................................................ 9
Symbols................................................................................................................ 9
Start-up/shutdown
Starting the heating system.................................................................................. 10
Shutting down the heating system....................................................................... 11
■ With frost protection monitoring........................................................................ 11
■ Without frost protection monitoring (shutdown)................................................ 11
Central heating
Required settings for central heating.................................................................... 12
Setting the heating flow temperature.................................................................... 12
Setting the operating program (central heating)................................................... 12
Setting the time program for central heating........................................................ 13
Stopping the central heating................................................................................. 14
Central heating comfort function.......................................................................... 15
DHW heating
Required settings (DHW heating)......................................................................... 16
Setting the DHW temperature.............................................................................. 16
Setting the operating program (DHW heating)..................................................... 16
Setting the time program for DHW heating.......................................................... 17
Stopping DHW heating......................................................................................... 18
DHW heating comfort function (if available)......................................................... 19
Further adjustments
Setting the time and date..................................................................................... 20
Setting the temperature unit (°C/°F) .................................................................... 20
Restoring factory settings..................................................................................... 21
Scanning
Scanning information............................................................................................ 22
Scanning service messages................................................................................. 24
Scanning fault messages..................................................................................... 25
Index
Index
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Multi boiler systems
Special considerations for multi boiler systems.................................................... 26
Emissions test mode
Starting emissions test mode............................................................................... 27
■ Stopping emissions test mode.......................................................................... 27
What to do if...
Rooms are too cold.............................................................................................. 28
Rooms are too hot................................................................................................ 29
There is no hot water............................................................................................ 29
The DHW is too hot.............................................................................................. 30
"ã" flashes on the display .................................................................................. 30
"E" flashes on the display .................................................................................. 30
"ë" flashes on the display .................................................................................. 31
Maintenance........................................................................................................ 32
Keyword index.................................................................................................... 35
Index
Index (cont.)
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The commissioning and matching of the
control unit to local conditions and build-
ing characteristics, as well as instructing
the user in the operation of the system,
must be carried out by your heating con-
tractor.
As the operator of new combustion
equipment, you may be obliged to notify
your local flue gas inspector [check local
regulations]. Your local flue gas inspec-
tor will also inform you [where appropri-
ate] about work that may be required on
your combustion equipment (e.g. regular
checks, cleaning).
Your system is preset at the factory
The control unit is preset to " " at the
factory for central heating and DHW
heating.
Your heating system is therefore ready
for use.
Central heating
■ The rooms are heated in accordance
with the settings on your control unit
and room temperature controller.
■ Your heating contractor can make fur-
ther settings for you during commis-
sioning.
You can change any settings individu-
ally at any time to suit your require-
ments (see chapter "Central heating").
DHW heating
■ DHW is heated to 50 °C.
■ Your heating contractor can make fur-
ther settings for you during commis-
sioning.
You can change any settings individu-
ally at any time to suit your require-
ments (see chapter "DHW heating").
Frost protection
■ Your boiler and DHW cylinder are pro-
tected against frost.
Power failure
■ All data is saved if there is a power
failure.
Terminology
To provide you with a better understand-
ing of the functions of your control unit,
the appendix contains chapter "Termi-
nology" (see page 33).
Introductory information
Commissioning
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B
C
D
A
Use the adjustment options on control
unit A and the room temperature con-
troller:
■ Never overheat your rooms. Every
degree by which the room temperature
is reduced saves up to 6 % of your
heating bills.
Never set your room temperature
higher than 20 °C (see page 12).
■ Never set the DHW temperature too
high (see page 16).
■ Select the operating program that
meets your current requirements:
– In summer, when you don't want any
central heating but will need DHW,
select operating program " " (see
page 16).
– If you don't want central heating and
you don't require DHW for an exten-
ded period, select operating pro-
gram " " (see page 11).
Further recommendations:
■ Correct airing/venting.
Briefly open window B fully and at
the same time close thermostatic
valves C.
■ Close roller shutters (if installed) at
dusk.
■Set thermostatic valves C correctly.
■Never cover radiators D or thermo-
static valves C.
■ Controlled DHW consumption: A
shower generally uses less energy
than a full bath.
Introductory information
Tips on saving energy
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You can change the settings for your
heating system centrally at the program-
ming unit.
If you have a room temperature control-
ler installed in your rooms, you can also
change the settings on the room temper-
ature controller.
Room temperature controller
operating instructions
Note
The programming unit can be placed in
a wall mounting base. This is available
as an accessory. Ask your heating con-
tractor for further information.
4 8°C
s A
Takes you one step back in the
menu
Cursor keys
Scroll through the menu or select
values
OK Enables you to confirm your selec-
tions or settings
No function
Enables you to call up the menu for
settings and scanning
Regarding operation
Controls
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Standard display
4 8°C
Press . This takes you to the settings
and scanning menu.
Symbols
These symbols are not always shown,
but appear subject to the system version
and the operating state. Flashing dis-
plays indicate that modifications can be
made.
Menu
Central heating
DHW heating
Information
Emissions test mode
Additional settings
Setting the time or time program
Setting the date
Operating program
Frost protection monitoring
(standby mode)
DHW heating
Central heating and DHW heat-
ing
Comfort mode for central heat-
ing
COMF Comfort mode for DHW heating
ECO Without comfort mode for DHW
heating
Messages
Service message
ýThe service interval has expired
Fault message
Burner fault message
Displays
Temperature
Frost protection monitoring
Central heating
Heating circuit pump running
Cylinder primary pump running
In conjunction with a solar thermal
system:
Solar circuit pump is running
Burner running
Factory settings
Regarding operation
How to use the controls
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0
123
4
bar
C D
E
BA
4 8°C
s A
AFault indicator (red)
BON indicator (green)
CReset button
DON/OFF switch
EPressure gauge
1. Check the heating system pressure
at the pressure gauge. The system
pressure is too low if the indicator
points to the area below 1.0 bar. In
this case, top up with water or notify
your local heating contractor.
2. For open flue operation:
Check that the vents of the installa-
tion room are open and unrestricted.
Note
With open flue operation, the com-
bustion air is drawn from the installa-
tion room.
3. Open the gas shut-off valve.
Note
Ask your heating contractor to
explain the positioning and handling
of these components.
4. Switch ON the power supply, e.g. at
a separate MCB/fuse or a mains iso-
lator.
5. Turn the ON/OFF switch " " ON.
After a short while, the standard dis-
play appears and the green ON indi-
cator illuminates. Your heating sys-
tem and room temperature controller
are now ready for operation.
Start-up/shutdown
Starting the heating system
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