Viessmann Vitotronic 100 GC1 Leitfaden
VITOTRONIC 100, GC1
Operating Instructions
and User’s Information Manual
Vitotronic 100, GC1 Series
Digital boiler control unit
Certified as a component part
of Viessmann boilers only
Read and save these instructions
for future reference.
IMPORTANT
Please file in Service Binder
5351 339 v1 1 05/2012
Introductory information
2
For your safety
Please follow these safety instructions closely to avoid the risk of injury to persons and damage to property.
If you smell as
Don’t smoke! Don’t use naked
flames or cause sparks (e g by
switching lights or electrical
appliances on and off)
Open windows and doors
Close the gas shut-off valve
Inform your heating engineers/service
contractors from outside the building
Observe the safety regulations of
your gas supply company (see gas
meter) and those of your heating
engineers (see start-up or instruction
report)
In emer encies
Immediately switch off the power
supply, e g at the separate fuse or
power supply disconnect switch
(unless there is a smell of gas)
Close the shut-off valves in the oil
pipes or close the gas shut-off valve,
whichever applicable
Use suitable extinguishers in the
event of fire
Work on the equipment
Installation, initial start-up,
maintenance and repairs must be
carried out by a competent person
(heating engineer/service contractor)
Before work is undertaken on the
equipment/heating system, switch
off the power supply voltage (e g at
the separate fuse or power supply
electrical isolator switch) and take
steps to prevent it from being
switched on again
Gas-fired systems: Also close the
gas shut-off valve and make secure
to prevent unauthorized use
Installation of additional components
The installation of additional
components which have not been
tested together with the boiler can
adversely affect the function and
performance of the boiler
Our warranty does not cover and we
accept no liability for damage
attributable to the installation of such
components
Boiler room conditions
Do not use a room in which the
air is polluted by halogenated
hydrocarbons (e g as contained
in aerosols, paints, solvents and
cleaning agents)
Do not use a room subject to high
levels of dust
Do not use a room subject to
permanently high humidity
The room should be frost-protected
Max ambient temperature
35 °C / 95 °F
Provide good ventilation and do
not close or obstruct vents
(if installed)
This symbol indicates a
reference to other
instructions which must
be observed.
This header denotes
special instructions which
apply to the use of the
Vitotronic 100 in a
multi-boiler system.
Notes on applicability
The Vitotronic 100, GC1, can be used in
single-boiler systems,
multi-boiler systems in conjunction with Vitocontrol-S, VD2/CT3/CM2
or
multi-boiler systems with an external master control
Multi-boiler system with external master control
Please observe the instructions marked by this header in this
document as well the instructions for the external master control
Multi-boiler system in conjunction with Vitocontrol-S, VD2/CT3/CM2
For this system type you need only consult the operating
instructions for the Vitocontrol-S, VD2/CT3/CM2 These contain all the
operating steps for the Vitotronic 100, GC1, too
5351 339 v1 1
Multi-
boiler
system
Multi-
boiler
system
Index
3
Page
Useful tips
Introductory information
For your safety 2
Notes on applicability 2
Instructions in brief
Ready for operation 4
Overview of controls and indicators 5
Selecting the heating program (winter, summer) 6
Reference uide
Switchin on and off
Starting up the boiler 7
Shutting down the boiler 7
Settin s
Changing the boiler water temperature 9
Changing the domestic hot water temperature 10
Scannin
Scanning temperatures and operating status information 11
Information
Troubleshootin uide
Diagnosis and correction 12
with single-boiler systems 13
with multi-boiler systems 15
Servicin /cleanin instructions and note on disposal
of unwanted equipment 17
Alphabetical index 18
5351 339 v1 1
Ready for operation
4
The main controls
You can carry out all the settings on your heating system centrally on the
control unit.
The control unit is behind the hinged cover. The hinged cover is opened by
pulling the top gently downwards towards you.
You must close the hinged cover again after use.
Settin s and scans possible on the Vitotronic 100 used in
sin le-boiler
systems
multi-boiler
systems
Heating programs
Central heating and domestic
hot water
Yes Yes
Domestic hot water only Yes No
Standby operation Yes Yes
Change the boiler water
temperature
Yes No
Change the domestic hot water
temperature
Yes No
Scan temperatures and
operating status information
Yes Yes
Display fault codes Yes Yes
5351 339 v1 1
Ready for operation
5
Overview of controls and indicators
Manual override (page 13)
Changing the boiler water temperature
(page 9)
(without function in multi-boiler system)
Changing the domestic hot water
temperature (page 10)
(without function in multi-boiler system)
Value selector buttons
Information (page 11)
Confirmation button
Factory settings (see below)
Display window
Heating program selector buttons (page 6)
wwithout function in multi-boiler system
Adjustable high limit
Manual reset fixed high limit
Power on/off switch (page 7)
Fuse F1, F2
TUV (for service purposes only)
Operating status indicator (green) (page 7)
Fault indicator (red) (page 12)
Factory settin s
Press this button to reset all altered va-
lues to their factory settings Please
note that all altered values are reset to
the factory settings
Flashin data
Data flashing in the display window
means that new settings can be
entered
Other display symbols
(These are not displayed continuously,
but appear according to system type
and operating status)
8
Digital display of the correspon-
ding value
°C Unit of measurement for tem-
perature values
hUnit of measurement for display
of burner hours run
UFault message
rCentral heating ON
rp Displayed when output sÖ is
activated
ABurner ON
wDomestic hot water heating
released
wp DHW pump (circulation pump for
heating the DHW tank) ON
|
Scan hours run
1st stage burner
||
Scan hours run
2nd stage burner
|||
Scan number of burner starts
5351 339 v1 1
TUV
Ready for operation
6
Selectin the heatin pro ram (winter, summer)
In a multi-boiler system
the button is without function
domestic hot water heating can only be set on the master control
Select the required heating program
with the , or button
hen pressed, the corresponding
button is illuminated.
Central heatin and domestic hot water
Central heating
Domestic hot water supply (if a DHW
tank is installed)
Freeze-up protection of the boiler and
the DHW tank
Example
For the winter and transitionary
periods.
Domestic hot water only
No central heating
Domestic hot water supply (if a DHW
tank is installed)
Freeze-up protection of the boiler and
the DHW tank
Example
For the summer.
Standby operation
No central heating
No domestic hot water supply
Freeze-up protection of the boiler and
the DHW tank
Please note:
The circulation pumps are
switched on for a short time
every 24 hours to prevent them
from seizing up.
5351 339 v1 1
Multi-
boiler
system
Switching on and off
7
Startin up the heatin system
The initial start-up and matching of the control unit to local conditions and
the structural characteristics of the building must be carried out by your
heating contractor.
In a multi-boiler system, only the Vitotronic 100 and the
corresponding boiler are started up when the following steps are
carried out.
1. Check the pressure of the heating
system on the manometer
If the needle is below the red
marker, the system pressure is too
low – in which case add more water
or contact your heating contractor
2. Open the shut-off valves in the oil
pipes (at the boiler) or open the gas
shut-off valve, whichever applicable
3. Switch on the power supply voltage,
e g at the separate fuse or a power
supply disconnect switch
4. Switch on the heating system on/off
switch ”8”; the operating status is
indicated by the green lamp and,
after a short time, the boiler
temperature appears in the display
window
The boiler is now ready for operation.
5351 339 v1 1
Multi-
boiler
system
Switching on and off
8
Shuttin down the heatin system
In a multi-boiler system, only the corresponding boiler can be
switched off with the Vitotronic 100. If the complete boiler system
is to be switched off, it is necessary to switch off the master
control and the power supply power supply to the heating system
as well.
If you do not want to use the boiler temporarily, select standby operation
(see page 6).
If you do not want to use the boiler for a long period (several months), you
should shut it down.
e advise you to contact your heating contractor before shutting down the
boiler for long periods. Your heating contractor will take any necessary action,
e.g. for freeze-up protection of the system or to safeguard the heat exchange
surfaces.
1. Switch off the heating system on/off
switch ”8”
The green lamp goes out The power
supply to the boiler is now switched
off
There is no freeze-up protection of
the boiler and DHW tank.
Please note:
The settings of the control unit
remain intact.
2. Close the shut-off valves in the oil
pipes (at the boiler) or close the gas
shut-off valve, whichever applicable
5351 339 v1 1
Multi-
boiler
system
Settings
9
Chan in the boiler water temperature
In a multi-boiler system, the tr button (for setting the boiler water
temperature) is without function.
If the button is nevertheless pressed, the boiler water temperature
continues to be displayed in the display window.
60
°C
__...60
r
1. tr Press tr; the previous
boiler water temperature
setting flashes in the
display window
2. / Press the / button
until the required
temperature value appears
3. Confirm by pressing ;
the temperature value stops
flashing and is stored The
display changes and shows
the boiler temperature
5351 339 v1 1
Multi-
boiler
system
Settings
10
Chan in the domestic hot water temperature
In a multi-boiler system, the Vitotronic 100 cannot be used for
controlling a DH tank.
The button is without function.
60
°C
__...50
w
1. Press ; the previous
domestic hot water
temperature setting flashes
in the display window
2. / Press the / button until
the required temperature
value appears
3. Confirm by pressing ; the
temperature value stops
flashing and is stored
The display changes and
shows the boiler
temperature
5351 339 v1 1
Multi-
boiler
system
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