Viessmann Vitodens 100 User manual

VIESMANN
Operating instructions
for the system user
Heating system
With control unit for constant temperature operation
VITODENS 100
5592 521 GB 6/2006 Please keep safe.

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 for
the heating system user.
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 quali-
fied 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
explosions which may result in
serious injury.
&Never smoke. Prevent naked
flames and sparks. Never
switch electrical lights or
equipment 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 local heat-
ing contractor from outside
the building.
&Shut off the electricity supply
to the building from a safe
place (outside the building).
If you smell flue gas
Danger
Flue gas can lead to life‐threa-
tening poisoning.
&Shut down the heating sys-
tem.
&Vent the boiler room.
&Close all doors in the living
space.
For your safety
2
Safety instructions
5592 521 GB

In case of fire
Danger
Fire creates the risk of burning
and explosions.
&Shut down the heating sys-
tem.
&Close the shut‐off valves of
the fuel lines.
&Use a tested fire extin-
guisher, class ABC.
Boiler room requirements
!Please note
Incorrect ambient conditions
canleadtodamagetothe
heating system and put the
safe operation at risk.
&Ensure ambient tempera-
tures 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
humidity levels (e.g. through
frequent drying of washing).
&Never close existing ventila-
tion apertures.
Ancillary components, spare and
wearing parts
!Please note
Components which are not
tested with the heating system
mayleadtodamagetothe
heating system, or may affect
their various functions.
Installation or replacement
must only be carried out by
qualified personnel.
For your safety (cont.)
3
Safety instructions
5592 521 GB

Introductory information
Initial start-up ............................................................................................. 5
Your system is preset at the factory............................................................. 5
Certification details ..................................................................................... 5
General description .................................................................................... 5
Where to find the controls
Summary of controls and indicators ............................................................ 7
&Opening the control unit ........................................................................... 7
&Control and display elements ................................................................... 7
&Indicators on display ................................................................................ 8
Changing the room temperature ................................................................. 8
Start-up/shutdown
Starting the heating system......................................................................... 9
Settings
Operating modes ........................................................................................ 10
&Heating mode .......................................................................................... 10
&DHW heating - combi boiler...................................................................... 10
Heating ...................................................................................................... 10
Hot water (combi boiler only)....................................................................... 11
&Switching the comfort function ON and OFF ............................................ 11
Hot water (system boiler only)..................................................................... 12
Displays
Heating water temperature and system pressure......................................... 13
Switch OFF
Switching the Vitodens OFF with frost protection ......................................... 14
Shutting down the heating system............................................................... 14
What to do if...
System characteristics................................................................................ 15
Fault indicator on display ............................................................................ 16
Repairs
Cleaning..................................................................................................... 17
Inspection and maintenance ....................................................................... 17
Energy saving tips .................................................................................... 18
Keyword index .......................................................................................... 19
Index
4
Index
5592 521 GB

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.
Your system is preset at the factory
The control unit is already adjusted to
"heating and hot water" in the factory,
i.e. DHW and central heating prepara-
tion (if a DHW cylinder is installed)
takes place.
Your heating system is therefore
ready for use.
You may change the factory settings
in accordance with personal require-
ments.
Note
All data is saved in case of power fail-
ure.
Certification details
The Vitodens 100 is certified to com-
ply with the requirements of the rele-
vant European Directives (90/396/
EEC, 73/23 EEC and 92/42/EEC) for
use in Great Britain and Ireland with
gas category I2H (G20 with a gov-
erned gas supply at 20 mbar (8 in.wg)
inlet pressure).
The appliance classification is either
C13x or C33x depending upon whether
a horizontal or vertical flue terminal is
used.
General description
The Vitodens 100 is a fully automatic,
wall mounted, fan assisted balanced
flue gas combination or system boiler
for use with natural gas (G20) at 20
mbar (8 in.wg) supply in sealed sys-
tems only.
The unit provides central heating with
an output between 8.0 kW to 24.0 kW/
30.0 kW. If required, the central heat-
ing output can be range-rated to suit
the system requirements.
Initial start-up
5
Introductory information
5592 521 GB

The output is automatically controlled
according to demand (in both domes-
tic hot water and central heating
mode). Note that hot water is always
given priority.
General description (cont.)
6
Introductory information
5592 521 GB

Opening the control unit
The controls and display elements are behind the hinged flap at the front.
Control and display elements
The control unit is preset at the factory for standard operation.
Your heating system is therefore ready for use.
ATime switch (accessories)
Btw"DHW temperature" rotary
selector (combi boiler only)
Ctr"Heating water temperature"
rotary selector
DFault display/reset button
EDisplay
Summary of controls and indicators
7
Wheretofindthecontrols
5592 521 GB

Indicators on display
ADisplay value / fault code
BHeating mode
CDHW heating
DBurner in operation
ECurrent burner output
FTemperature in °C (in conjunction
with the display value)
GFault
HSystem pressure (in conjunction
with the display value)
KService setting active (only for
contractors)
LComfort function enabled
MComfort function disabled
Changing the room temperature
In addition to the boiler control unit, a separate room temperature controller
must be installed in one of the living rooms to comply with part L of the Building
Regulations if the heating system is to be regulated in accordance with the
required room temperature.
Please make any adjustments using
the relevant operating instructions.
Please also note:
All radiator thermostat valves must be
fully open in the room in which the
control unit is installed.
Summary of controls and indicators (cont.)
8
Wheretofindthecontrols
5592 521 GB

The initial start-up and matching up of the control unit to local conditions and the
structural characteristics of the building must be carried out by your heating
contractor.
We recommend you contact your local heating contractor if you are planning to
start up a heating system that has not been used for a long period.
1. Switch ON the power.
Your heating system and the
Vitotrol 100 room temperature con-
troller (if connected) are now ready
for operation.
2. Check the pressure of the heating
system by moving the rotary selec-
tors tw and tr to 9. The system
pressure appears on the display.
Minimumsystempressure1.0
bar.
If the pressure of the system is too
low, please notify your heating con-
tractor.
3. Open flue operation only:
Thecombustionairistakenfrom
the installation room.
Check that the ventilation openings
of the installation room are open
and unrestricted.
4. Open gas shut-off valve A.
Starting the heating system
9
Start-up/shutdown
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Your Vitodens can be operated in the "Heating" or "DHW" operating modes.
Heating mode
If a Vitotrol 100 room temperature
controller is connected, it is used to
set the required room temperature.
Please refer to the separate operating
instructions.
If the setting on the room temperature
control unit is inadequate for achiev-
ing the required room temperature (e.
g. during an extremely cold winter),
the heating water temperature can
also be modified using the rotary
selector tr.
DHW heating - combi boiler
In the event of a demand for hot
water, the appliance will detect water
flow and initiate the ignition
sequence. The fan (and pump) will
start and the boiler will light.
If the hot water demand is near to the
maximum design flow rate the boiler
will run continuously at full output until
the tap is closed or the flow rate is
reduced, the heat input will be
reducedtomaintainasteadypre-set
temperature at the tap.
Hot water is available almost instanta-
neously from the boiler, but the final
outlet temperature and the delay in
reaching full temperature will depend
ontheflowrateandthedistancefrom
the boiler to the tap.
When the tap is closed the boiler will
return to heating mode, if there is a
demand for heating, otherwise the
boiler will shut down until the next
demand for heating or hot water.
Heating
Switching ON:
Move rotary selector tr to the
required heating water temperature.
If central heating is active, the indica-
tor rappears on the display.
Switching OFF:
Turn rotary selector rt to 9.
Operating modes
10
Settings
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Vitodens 100 with integral instantaneous water heater.
Select the hot water temperature in accordance with your personal require-
ments (e.g. for showering).
Switching ON:
Move rotary selector tw to the
required hot water temperature.
If DHW heating is active, the indicator
wappears on the display.
Switching OFF:
Turn rotary selector tw to 9.
Switching the comfort function ON and OFF
If the comfort function is switched ON, the instantaneous water heater is kept up
to temperature (standby). Hot water is therefore quickly available.
Switching ON the comfort function
Briefly turn rotary selector tw clock-
wise as far as possible (for less than 3
s) and turn anticlockwise again.
"COMFORT" appears on the display.
Switching OFF the comfort function
Briefly turn rotary selector tw antic-
lockwise as far as possible (for less
than 3 s) and turn clockwise again.
"ECO" appears on the display.
Hot water (combi boiler only)
11
Settings
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For operation with a separate DHW cylinder, set DHW temperature at DHW
cylinder thermostat.
Hot water (system boiler only)
12
Settings
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Checking the heating water tem-
perature
The heating water temperature
appears on the display at all times
during operation.
Checking the system pressure
1. Turn both rotary selectors tr and
tw anticlockwise as far as possi-
ble 9(turn selector tr only for
system boiler).
The current system pressure (e.g.
1.0 bar) then appears on the dis-
play.
2. Return both rotary selectors to their
original positions.
Note
If the system pressure drops below
0.6 bar, it flashes on the display. If this
occurs, please notify your heating
contractor.
Heating water temperature and system pressure
13
Displays
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If you do not wish to use your boiler for several days you can switch the unit off.
Turn both rotary selectors to 9.
Frost protection is now active for the
boiler.
Shutting down the heating system
Shut down your heating system completely, if it will not be needed for longer
periods of time (several months).
We recommend you contact your local heating contractor if you plan to take
your heating system out of use for longer periods. Your heating contractor can
then take suitable measures such as frost protection or heating surface preser-
vation as required.
1. Close the main gas shut-off valve
and safeguard against
unauthorised reopening.
2. Switch OFF the power.
The power to the system is now
switched off.
Note that the system is no longer
frost protected.
Switching the Vitodens OFF with frost protection
14
Switch OFF
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What to do if ... Cause Remedy
... the heating system
does not start
ON/OFF switch switched
OFF
Switch ON
System controls includ-
ing room thermostats
not calling for heat.
Rotary selector tr set
to 9
Set required heating
water temperature (see
page 10)
Fuse has tripped/blown
(either at the fuse board
or in the controls)
Contact your heating en-
gineer
... the boiler does not
switch ON (or switched
ON infrequently)
No gas Contact your gas supplier
or heating engineer
Control fault Read off the fault codes
on the display. Contact
your heating engineer
and report fault codes.
... the burner does not
ignite, the fault symbol
"U" is displayed and
"Reset" flashes red
False start Press "Reset" button. If
this attempt to start is
also unsuccessful, con-
tact your heating engi-
neer.
Low system water pres-
sure
The system pressure will
flash on the display. Con-
tact your heating engi-
neer.
It is possible to recharge
the system via the filling
loop.
Note: Care must be taken
to ensure the fill valve is
not left on. Viessmann
Ltd. will not be liable for
incorrect use of the filling
loop; if in doubt contact
your heating engineer.
System characteristics
15
What to do if...
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What to do if ... Cause Remedy
... the heating system
does not start
System controls includ-
ing room thermostats
not calling for heat.
Switch ON system con-
trols to create demand.
... the burner does not
ignite, display shows
fault symbol "U"
Control fault Read off the fault codes
on the display. Contact
the heating engineer and
report fault codes.
…the burner switches off
although the set room
temperature has not
been reached
Fault in air supply or in
the flue
Contact your heating en-
gineer.
Heating water tempera-
ture or room tempera-
ture is set too low
Increase heating water
temperature by turning
rotary selector tr (see
page 10) or increase set
room temperature (see
Vitotrol 100 manual).
... the rooms are cold,
even though the burner is
working
DHW priority Stop using hot water
Fault on Vitotrol 100 or
similar programmable
room thermostat
Contact your heating en-
gineer.
…the temperature of the
hot water is too low
The DHW temperature is
set too low or rotary se-
lector tw is set ON 9
Select the set DHW tem-
perature
Fault indicator on display
Any faults in your heating system are
indicated on the display by a flashing
fault symbol "U".
Read off the fault code on the display
and report it to your heating engineer.
System characteristics (cont.)
16
What to do if...
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The appliance casing can be cleaned
usingadampclothandamilddeter-
gent. Do not use abrasive cleaners.
Inspection and maintenance
To ensure continued efficient opera-
tion of the appliance, it is recom-
mended that it is checked and
serviced as necessary at regular
intervals. The frequency of servicing
will depend upon the particular instal-
lation conditions and usage but in
general once a year should be ade-
quate. It is the law that any service
work must be carried out by a compe-
tent CORGI registered fitter.
Cleaning
17
Repairs
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Along with using a modern heating system, you can save additional energy by
your own actions.
The following steps will help you with this:
&Correct ventilation/airing.
Briefly open windows Afully and at
thesametimeclosethermostatic
valves B.
&Never overheat rooms;
endeavour to achieve a room tem-
perature of 20 °C; every degree of
room temperature reduction saves
up to 6% of your heating bills.
&Close roller shutters (where
installed) at dusk.
&Set thermostatic valves Bcor-
rectly.
&Never cover radiators Cor thermo-
static valves B.
&Utilise the setting options offered by
control unit D.
&Controlled DHW consumption: A
shower generally uses less energy
than a full bath.
Energy saving tips
18
Energy saving tips
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C
Cleaning ..................................... 17
Comfort function ........................... 11
Commissioning.............................. 5
Controls ........................................ 7
D
DHW temperature ......................... 11
Display.......................................... 8
Display elements ........................... 7
F
Fault ........................................... 15
Frost protection ........................... 14
G
General description........................ 5
H
Heating and DHW .......................... 5
Heating system presettings ............ 5
Heating water temperature ........... 10
M
Maintenance ............................... 17
O
Open control unit ........................... 7
P
Pressure display.......................... 13
R
Room temperature ......................... 8
S
Standard room temperature (day
temperature) ................................. 5
Standard settings........................... 5
Switching ON................................. 9
System pressure.......................... 13
Keyword index
19
Keyword index
5592 521 GB

Your contact
Contact your local heating contractor if you have any questions regarding the
maintenance and repair of your heating system. You may, for example, find
local heating contractors on the internet under www.viessmann.de.
20
Printed on environmentally friendly, chlorine-free bleached paper
5592 521 GB Subject to technical modifications.
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: [phone]
Fax: [phone]
www.viessmann.com
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]