Viessmann Vitodens 111-W User manual

Operating instructions
for the system user
VIESMANN
Heating system
with control unit for constant temperature or weather-compensated
mode
VITODENS 111-W
5618 673 GB 4/2012 Please keep safe.

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..................................................................................................... 5
Terminology.......................................................................................................... 5
Your system is preset at the factory..................................................................... 5
Energy saving tips................................................................................................ 5
Where to find the controls
Summary of controls and indicators..................................................................... 7
■Control and display elements............................................................................ 7
■ Indicators on display......................................................................................... 7
Operating mode of the heating system................................................................ 8
■Operation without room temperature control unit.............................................. 8
■ Operation with room temperature control unit................................................... 8
■ Weather-compensated mode............................................................................ 8
Start-up/shutdown
Starting the heating system.................................................................................. 9
Shutting down the heating system....................................................................... 9
■Switching the Vitodens off with frost protection................................................ 9
■Shutting down the heating system.................................................................... 10
Settings
Heating................................................................................................................. 11
Domestic hot water............................................................................................... 11
Displays
Heating water temperature................................................................................... 12
What to do if...
System characteristics......................................................................................... 13
Fault indicator on display...................................................................................... 14
Reset burner fault (Reset).................................................................................... 14
Servicing
Cleaning............................................................................................................... 15
Inspection and maintenance................................................................................ 15
■ Boiler................................................................................................................. 15
■ Drinking water filter (if installed)........................................................................ 16
Appendix
Terminology.......................................................................................................... 17
Keyword index.................................................................................................... 19
Index
Index
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The commissioning and matching up of
the control unit to local conditions and
the building characteristics must be car-
ried out by your heating contractor.
g Gas council no.
Rated heating
output range
kW
Gas council no.
6.5 - 26 47-819-24
8.8 - 35 47-819-25
Terminology
To provide you with a better understand-
ing of the functions of your Viessmann
control unit some terminology is
explained.
The terms are marked as follows.
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
Your system is preset at the factory
The control unit is preset at the factory
for standard operation.
Your heating system is therefore ready
for operation. You may change the fac-
tory setting in accordance with individual
requirements.
Energy saving tips
Utilise the setting options for the control
unit and remote control (if available).
Central heating
■Room temperature:
Never overheat your rooms. Every
degree of room temperature reduction
saves up to 6 % of your heating bills.
Set your room temperature no higher
than 20 ºC.
■Operating modes:
Introductory information
Commissioning
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If you do not require central heating,
select one of the following operating
modes:
– If you do not wish to heat rooms in
summer but require domestic hot
water, set rotary selector "tw" (see
page 11) and turn rotary selector
"tr" to "0".
– If you require neither central heating
nor DHW for a prolonged period, set
rotary selectors "tr" and "tw"to
"0" (see pages 11 and 11).
■Ventilation:
To ventilate, open the windows fully for
a brief time and meanwhile close the
thermostatic valves (if there is no
domestic ventilation system installed).
■Roller shutters:
Close roller shutters (where installed)
at dusk.
■Thermostatic valves:
Ensure that thermostatic valves are
properly set.
■Radiators:
Never cover radiators or thermostatic
valves.
DHW heating
■DHW temperature:
Never set the DHW cylinder tempera-
ture excessively high (see page 11).
■DHW consumption:
Consider showering instead of running
a bath. A shower generally uses less
energy than a full bath.
Introductory information
Energy saving tips (cont.)
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Control and display elements
AB C D E
r
r
A
1
0
2
3
4
°C
06
bar
APressure gauge
BDisplay
Ctw Rotary selector "DHW temper-
ature "
Dtr Rotary selector "heating water
temperature" and "reset"
EON/OFF switch
Indicators on display
SERV
r
A
8:8:8°C
°F
A B C D
HG F E
8:8:8
AHeating mode
BDHW heating
CDisplay value or fault code
DTemperature in °C
EService setting active (only for con-
tractors)
FCurrent burner output
GBurner in operation
HFault
Where to find the controls
Summary of controls and indicators
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Operation without room temperature control unit
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
The required heating water temperature
can be set with the rotary selector
"tr" (see page 11).
Operation with room temperature control unit
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
Please make any adjustments to the
connected room temperature control unit
using the relevant operating instruc-
tions.
Note
The heating water temperature must be
set sufficiently high using the rotary
selector "
tr
" for the desired room tem-
perature to be reached.
Weather-compensated mode
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
In weather-compensated mode, the
boiler water temperature is regulated
subject to the outside temperature.
Rotary selector "tr" enables you to
increase or reduce the room tempera-
ture.
Where to find the controls
Operating mode of the heating system
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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
0
2
3
4
bar
1. Check the pressure of your heating
system on the pressure gauge.
Minimum system pressure
0.8 bar.
If the system pressure is too low,
please notify your heating contrac-
tor.
2. With conventional flue operation
(combustion air is taken from the
boiler room):
There must be fixed permanent ven-
tilation into the boiler room.
3. Open the gas shut-off valve.
4. Switch on the ON/OFF switch.
Your heating system and room tem-
perature control unit (if connected)
are now ready for operation.
Shutting down the heating system
Switching the Vitodens off with frost protection
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
If you do not wish to use your boiler for
several days you can switch the unit
off.
Start-up/shutdown
Starting the heating system
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r
Turn both rotary selectors to "0".
Frost protection is now active for the
boiler.
Note
Frost protection for the entire heating
system - see operating instructions for
the room temperature control unit.
Shutting down the heating system
Shut down your heating system com-
pletely if it will not be needed for a long
period of time (several months).
We recommend you contact your local
heating contractor if you are planning to
shut down your heating system for long
periods. Your heating contractor can
then take any necessary action, subject
to requirements, e.g. system frost pro-
tection or preserving the heating surfa-
ces.
1. Close the gas shut-off valve and safe-
guard against unauthorised reopen-
ing.
2. Switch off the ON/OFF switch.
The power to the system is now
switched off.
Note that the system is no longer
frost-protected.
Start-up/shutdown
Shutting down the heating system (cont.)
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Further information can be found
in chapter "Terminology" in the Ap-
pendix.
r
Switching on:
Move rotary selector "tr" to the
required heating water temperature.
Note
If a room temperature control unit is con-
nected, use this unit to set the desired
room temperature (see page 8).
If central heating is active, the display
shows "r".
Switching off:
Turn rotary selector "rt" to "0".
Domestic hot water
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
Select the DHW temperature in accord-
ance with your personal requirements
(e.g. for showering).
Switching on:
Move rotary selector "tw" to the
required DHW temperature.
If DHW heating is active, the display
shows "w".
Switching off:
Turn rotary selector "tw" to "0".
Settings
Heating
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Further information can be found
in chapter "Terminology" in the Ap-
pendix.
A
°C
06
The boiler water temperature appears on
the display at all times during operation.
The heating water temperature is
roughly equal to the boiler water temper-
ature.
Displays
Heating water temperature
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What to do if... Cause Remedy
... the heating system will not
start
No mains voltage Switch on the ON/OFF switch
Rotary selector
"tr" is on "0"
Setting the desired heating wa-
ter temperature (see page 11)
Fuse/MCB in the
power distribution
board (domestic
mains fuse) or in
control unit has
blown/responded
Notify your local heating con-
tractor
... the burner is not started or
starts intermittently
No gas available Open the gas shut-off valve and
if necessary check with your
gas supply utility
Control unit fault Check the fault code on the dis-
play. Notify your local heating
contractor and state the fault
code.
... the burner fails to start;
fault message "U" is dis-
played
False start Reset burner fault (see
page 14) – if this attempt to
start also fails, notify your heat-
ing contractor
Water shortage Notify your local heating con-
tractor.
… the burner shuts down
even if the rooms have not
reached their required tem-
perature
Fault in the ventila-
tion air supply or flue
system
Notify your local heating con-
tractor
Heating water tem-
perature or required
room temperature is
set too low
Raise the heating water temper-
ature with rotary selector
"tr" (see page 11) or raise re-
quired room temperature (see
room temperature control unit
operating instructions)
Air in the heating
system
Bleed radiators
... the rooms have not
reached the required tem-
perature, even though the
burner is operational
DHW priority Wait until the DHW cylinder has
been heated up
Circulation pump
faulty
Notify your local heating con-
tractor
… DHW temperature is too
low
DHW temperature is
set too low or rotary
selector "tw" is on
"0"
Set the desired DHW tempera-
ture
What to do if...
System characteristics
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Any fault in the heating system will be
shown on the display.
You can check the fault code on the dis-
play and then notify your heating con-
tractor accordingly. This allows the heat-
ing contractor to better prepare for the
service call and may save additional
travelling costs.
2f
Reset burner fault (Reset)
r
1. Turn rotary selector "rt" to "U
RESET" for less than 2 s, then back
into the control range.
2. If the attempt to start fails, contact
your heating contractor with the fault
code.
What to do if...
Fault indicator on display
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All appliances may be cleaned with a
commercially available domestic clean-
ing agent (non-scouring).
Inspection and maintenance
The inspection and maintenance of a
heating system is prescribed by the
Energy Savings Ordinance [EnEV - Ger-
many] and the DIN 4755, DIN 1988-8
and EN 806 standards.
Regular maintenance ensures trouble-
free, energy-efficient and environmen-
tally responsible heating. For this, it is
recommended that you take out an
inspection and maintenance contract
with your local contractor.
Boiler
Increasing boiler contamination raises
the flue gas temperature and thereby
increases energy losses. All boilers
should therefore be cleaned annually.
Logbook
Please ensure that you have a Logbook
supplied with your appliance. This Log-
book should be completed by your instal-
ler to verify that the correct installation
and commissioning procedure was fol-
lowed.
Failure to complete the Logbook may
result in difficulties should a problem
arise with your appliance during the
guarantee period. This Logbook forms
part of the industry's Benchmark code of
practice for the installation, commission-
ing and servicing of central heating sys-
tems.
All Gas Safe Registered Installers carry
a ID card and have a registration num-
ber. Both should be recorded in your
Logbook. You can check your installer is
Gas Safe registered by calling GasSafe
register on [phone] or visit
the website www.gassaferegister.co.uk
Servicing
Cleaning
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Drinking water filter (if installed)
Further information can be found
in chapter "Terminology" in the Ap-
pendix.
For hygiene reasons
■ replace filter element on non-back-
washing filters every six months (vis-
ual inspection every two months)
■ on backwashing filters, backwash
every two months
Servicing
Inspection and maintenance (cont.)
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Constant temperature mode
In constant temperature mode, the heat-
ing water is constantly (continuously)
heated to the selected boiler water tem-
perature.
Operating modes
You can select the following operating
modes:
■ When r and w are selected:
The rooms are heated. DHW is heated
(winter mode).
■ When w is selected:
DHW is heated but there is no central
heating (summer mode).
■ When r is selected:
The rooms are heated but there is no
DHW heating.
■ When r and w are set to "0":
Frost protection for the boiler and
DHW cylinder is active, no central
heating, no DHW heating (standby
mode).
Heating water temperature
The temperature of the heating water
that flows to the radiators (roughly equal
to boiler water temperature).
Boiler water temperature
The heating water in the boiler (boiler
water) is heated to the temperature
selected at the control unit. This temper-
ature is described as boiler water tem-
perature.
Open flue operation
The combustion air is drawn from the
room where the boiler is installed.
Balanced flue operation
The combustion air is drawn from out-
side the building.
Room temperature-dependent opera-
tion
A room temperature control unit cap-
tures the room temperature and com-
pares this with the required room tem-
perature you selected. If the room tem-
perature is lower than the required value,
the boiler is switched on; if the room tem-
perature is higher than the required
value, the boiler is switched off.
Please make any adjustments to the
connected room temperature control unit
using the relevant operating instruc-
tions.
Note
The heating water temperature must be
set sufficiently high using the rotary
selector "
tr
" for the desired room tem-
perature to be reached.
Safety valve
A safety device that must be installed by
your heating contractor in the cold water
pipe. The safety valve opens automati-
cally to prevent excess pressure in the
DHW cylinder.
Appendix
Terminology
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Drinking water filter
A device that removes solids from the
water. The drinking water filter is instal-
led in the cold water pipe upstream of the
DHW cylinder or the instantaneous
water heater.
Flow temperature
The temperature of the heating water
that flows to the radiators (in the flow
line). Accordingly, the temperature of the
heating water that flows from the radia-
tors to the boiler (in the return line) is
described as the return temperature.
Weather-compensated mode
In weather-compensated mode, the flow
temperature is controlled according to
the outside temperature. This means
that no unnecessary heat is generated in
order to heat the rooms to the required
room temperature you selected.
The outside temperature is captured and
transmitted to the control unit by a sen-
sor fitted outside the building.
Appendix
Terminology (cont.)
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C
Changing the temperature.............8, 11
Cleaning information..........................16
Commissioning....................................5
Controls................................................7
D
DHW temperature..............................11
Display.................................................7
Display elements..................................7
Drinking water filter............................16
E
Error (fault).........................................14
F
Fault...................................................13
Frost protection....................................9
H
Heating water temperature................11
I
Inspection...........................................15
M
Maintenance......................................15
Maintenance contract.........................15
N
Notice of completion............................5
R
Reset..................................................14
Room temperature...............................8
S
Starting.................................................9
Switching off.........................................9
T
Temperature display..........................12
Terminology.......................................17
W
Weather-compensated mode.........8, 18
Keyword index
Keyword index
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Your contact
Contact your local contractor if you have any questions regarding the maintenance
and repair of your system. You may, for example, find local contractors on the internet
under www.viessmann.com.
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: [phone]
Fax: [phone]
www.viessmann.com
5618 673 GB Subject to technical modifications.