Viessmann Vitopend 100-W User manual

Operating instructions
for the system user
VIESMANN
With constant temperature or weather-compensated control unit
VITOPEND 100-W
5837147 HK 11/2017 Please keep safe.
VITODENS 100-W

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 envi-
ronmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These operating instructions are
designed for heating system users.
This device can also be operated by
children 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 individuals are being
supervised or have been instructed in
the safe use of this appliance and any
risks arising from it.
!Please note
Supervise children in the prox-
imity of the device.
■ Never permit children to play
with the device.
■ Cleaning and user mainte-
nance must never be carried
out by unsupervised children.
Appliance connection
■ The appliance may be connected and
commissioned only by authorised
contractors.
■ Only operate the appliance with suit-
able fuels.
■ Observe the specified electrical con-
nection requirements.
■ Modifications to the existing installa-
tion may be carried out only by
authorised contractors.
Danger
Incorrectly executed work on the
heating system can lead to life
threatening accidents.
■ Work on gas installations may
only be carried out by a regis-
tered gas fitter.
■ Work on electrical equipment
may only be carried out by a
qualified electrician.
Safety instructions
For your safety
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Work on the appliance
■ All settings and work on the appli-
ance must be carried out as specified
in these operating instructions.
Further work on the appliance may
be carried out only by authorised
contractors.
■ Never open the appliance.
■ Never remove casings.
■ Never change or remove attach-
ments or fitted accessories.
■ Never open or retighten pipe connec-
tions.
Danger
Hot surfaces can cause burns.
■ Never open the appliance.
■ Never touch the hot surfaces
of uninsulated pipes, fittings or
flue pipes.
Damage to the appliance
Danger
Damaged equipment poses a
safety hazard.
Check the appliance for external
damage. Never start up a dam-
aged appliance.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in seri-
ous 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.
■ Evacuate any people from the
danger zone.
■ Notify your gas and power
supply utility and your local
heating contractor from out-
side the building.
■ Have the power supply to the
building shut off from a safe
place (outside the building).
If you smell flue gas
Danger
Flue gas can lead to life threat-
ening poisoning.
■ Shut down the heating sys-
tem.
■ Ventilate the installation site.
■ Close all doors in the living
space.
Safety instructions
For your safety (cont.)
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If there is a fire
Danger
Fire presents a risk of burns and
explosion.
■ Shut down the heating sys-
tem.
■ Close the shut-off valves in
the fuel supply lines.
■ Use a tested fire extinguisher,
class ABC.
What to do if water escapes from the appliance
Danger
If water escapes from the appli-
ance there is a risk of electrocu-
tion.
■ Switch OFF the heating sys-
tem at the external isolator
(e.g. fuse box, domestic distri-
bution board).
■ Notify your heating contractor.
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 mes-
sages several times in quick
succession. Inform your heating
contractor so the cause can be
analysed and the fault rectified.
Installation room requirements
Danger
Sealed vents result in a lack of
combustion air. This leads to
incomplete combustion and the
formation of life threatening car-
bon 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/pipe-
work routing, cladding or parti-
tions).
Danger
Easily flammable liquids and
materials (e.g. naphtha/petrol,
solvents, cleaning agents, paints
or paper) can cause deflagration
and fire.
Never store or use such materi-
als in the installation room or in
direct proximity to the heating
system.
Safety instructions
For your safety (cont.)
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!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,
solvents 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 outside (cooker hoods, extrac-
tors, air conditioning units, etc.) can
create negative pressure. If the boiler is
operated at the same time, this can
lead to a reverse flow of flue gas.
Danger
The simultaneous operation of
the boiler and appliances that
extract air to the outside can
result in life threatening poison-
ing due to a reverse flow of flue
gas.
Take suitable steps to ensure an
adequate supply 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 replace-
ment work carried out exclu-
sively by qualified contractors.
Safety instructions
For your safety (cont.)
5837147

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Introductory information
Intended use......................................................................................................... 8
Commissioning..................................................................................................... 8
Terminology.......................................................................................................... 8
Your system is preset........................................................................................... 9
Energy saving tips................................................................................................ 9
Operation
Programming unit................................................................................................. 10
■ Display and control elements............................................................................ 10
■ Symbols on the display..................................................................................... 11
Operating program............................................................................................... 12
■ Operating programs for central heating, DHW, frost protection........................ 12
Operating modes of the heating system............................................................... 12
■ Operation without room temperature controller................................................ 12
■ Operation with room temperature controller..................................................... 13
■ Room temperature-dependent operation.......................................................... 13
■ Weather-compensated mode............................................................................ 13
Time program....................................................................................................... 14
■ Time phases..................................................................................................... 14
■ Operating status................................................................................................ 14
Start-up/shutdown
Starting the heating system.................................................................................. 15
Shutting down the heating system....................................................................... 16
Central heating
Room temperature............................................................................................... 18
■ Setting the standard room temperature............................................................ 18
■ Operation without room temperature controller ― Setting the heating water
temperature....................................................................................................... 18
■ Room temperature-dependent operation ― Setting the set room tempera-
ture.................................................................................................................... 18
■ Weather-compensated mode ― Setting the heating curve.............................. 19
Operating program............................................................................................... 19
■ Setting the operating program for central heating and DHW heating............... 20
Time program....................................................................................................... 20
■ Switching the time program on/off.................................................................... 21
■ Selecting the operating status and setting a value........................................... 21
■ Setting the heating programs............................................................................ 22
Heating curve ― weather-compensated mode.................................................... 24
■ Setting the heating curve.................................................................................. 24
Stopping central heating....................................................................................... 27
Index
Index
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DHW heating
DHW temperature................................................................................................ 28
■ DHW temperature adjustment.......................................................................... 28
Operating program............................................................................................... 28
■ Setting the operating program for DHW heating............................................... 28
Time program....................................................................................................... 29
■ Switching the time program on/off.................................................................... 29
■ Setting the time program for DHW heating....................................................... 30
Further adjustments
Setting the time and date..................................................................................... 31
■ Displaying the date........................................................................................... 31
Checks
Checking information............................................................................................ 33
What to do if...
Rooms are too cold.............................................................................................. 35
Rooms are too hot................................................................................................ 36
There is no hot water............................................................................................ 37
The DHW is too hot.............................................................................................. 38
Symbols and are shown............................................................................... 38
Maintenance
Cleaning............................................................................................................... 39
Water hardness.................................................................................................... 39
Inspection and maintenance................................................................................ 39
Device.................................................................................................................. 39
Damaged cables/lines.......................................................................................... 40
Appendix
Terminology.......................................................................................................... 41
Keyword index.................................................................................................... 44
Index
Index (cont.)
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The appliance is intended solely for
installation and operation in sealed
unvented heating systems that comply
with EN 12828 and CECS 215, with
due attention paid to the associated
installation, service and operating
instructions. It is only designed for heat-
ing up heating water that is of potable
water quality.
Intended use presupposes that a fixed
installation in conjunction with permissi-
ble, system-specific components has
been carried out.
Commercial or industrial usage for a
purpose other than heating the building
or DHW shall be deemed inappropriate.
Any usage beyond this must be
approved by the manufacturer in each
individual case.
Incorrect usage or operation of the
appliance (e.g. the appliance being
opened by the system user) is prohibi-
ted 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).
Commissioning
The commissioning and adjusting of the
control unit to local conditions and the
structural characteristics of the building
must be carried out by your heating
contractor.
Terminology
To provide you with a better under-
standing of the functions of your
Viessmann control unit, some terminol-
ogy is explained.
The terms are marked as follows:
Further information can be found
in chapter "Terminology" in the
Appendix.
Introductory information
Intended use
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Your heating system is delivered from
the factory in standby mode, i.e. frost
protection is active.
Your heating contractor can make fur-
ther settings for you during commis-
sioning.
You can change the settings at any
time to suit your individual require-
ments.
Power failure
All settings are saved if there is a
power failure.
Energy saving tips
Central heating
■Room temperature:
Never overheat your rooms. Every
degree of room temperature reduc-
tion saves up to 6 % on your heating
bills.
If possible, set your room tempera-
ture no higher than 20 °C (see
page 18).
■Ventilation:
For venting/airing, open the windows
fully for a brief time. During this time,
close the thermostatic valves (if no
mechanical ventilation system is
installed).
■Roller shutters:
Close roller shutters (where installed)
at dusk.
■Thermostatic valves:
Ensure that thermostatic valves are
properly adjusted.
■Radiators:
Never cover radiators or thermostatic
valves.
DHW heating
■DHW temperature:
Do not set your DHW temperature
too high (see page 28).
■Hot water consumption:
Consider showering instead of run-
ning a bath. A shower generally uses
less energy than a full bath.
Introductory information
Your system is preset
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Display and control elements
You can change any settings on your
heating system centrally at the control
unit.
Note
If your system is equipped with a room
temperature controller, the room tem-
perature settings can be made on the
controller (see separate operating
instructions).
All thermostatic radiator valves must be
fully open in the room where the room
temperature controller is installed.
Note
The display lights up as soon as you
make any settings on the programming
unit.
Â
MODE OK
B CA D E
0
l
ADisplay
BMODE key, to call up the menu.
CArrow keys, to scroll through the
menu or adjust values.
DOK key, to confirm your selection
or save the setting made.
EON/OFF switch
Operation
Programming unit
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Symbols on the display
These symbols are not always dis-
played, but appear subject to the sys-
tem version and the operating status.
on
°C
0
pm 0
Ⅰ
Ⅱ
p
%
MPa
A B C D EF G H
K
L
M
N
ORSTU
V
W
P
Displays:
AWinter mode is active.
BSummer mode is active.
CStandby mode is active.
DTime program is active.
EFlashes while a time program is
being set.
FLights up or flashes when a room
temperature sensor is connected
(accessories).
GExternal extension is active, solar
circuit pump (accessories).
HAn external extension for the con-
trol unit is connected (accessories).
KOutside temperature sensor is con-
nected (accessories).
LMain display with measuring units
corresponding to the value dis-
played
MFrost protection is active.
NFault display, carry out a reset.
OFault display, notify your heating
contractor.
PDHW heating is active or not active
within a time program.
ROperating status
SAdditional display, showing
for example the time in standby
mode.
TService setting is active.
UBurner is operational.
Operation
Programming unit (cont.)
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VOperating program "DHW" is
active.
WOperating program "Heating" is
active.
Operating program
Operating programs for central heating, DHW, frost protection
Symbol Operating program Function
Central heating and DHW heating
Heating and DHW (winter
mode)
■ The rooms are heated in accord-
ance with the room temperature
and time program specified (see
chapter "Central heating").
■ DHW is heated in accordance with
the DHW temperature and time
program specified (see chapter
"DHW heating").
DHW heating
DHW only (summer mode) ■ DHW is heated in accordance with
the DHW temperature and time
program specified (see chapter
"DHW heating").
■ No central heating
■ Frost protection is active.
Frost protection
Standby mode ■ No central heating
■ No DHW heating
■ Frost protection for the boiler and
the DHW cylinder is enabled.
Operating modes of the heating system
Operation without room temperature controller
Further information can be found
in chapter "Terminology" in the
Appendix.
Setting the required heating water tem-
perature, see page 18.
Operation
Programming unit (cont.)
5837147

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Operation with room temperature controller
Further information can be found
in chapter "Terminology" in the
Appendix.
Make any settings on the connected
room temperature controller using the
relevant operating instructions.
Note
Set the heating water temperature high
enough to achieve the required room
temperature.
For settings, see page 18.
Room temperature-dependent operation
Further information can be found
in chapter "Terminology" in the
Appendix.
The heating water temperature is regu-
lated so that the pre-selected room
temperature is achieved.
For setting the room temperature, see
page 18.
Note
To prevent heat being generated
unnecessarily at times when you do not
require central heating, you should
additionally connect either a room tem-
perature controller to your heating sys-
tem, or a room temperature sensor act-
ing in combination with the time switch
to define the boiler control unit heating
times. This enables central heating to
be suspended at night, for example, in
order to save energy.
Weather-compensated mode
Further information can be found
in chapter "Terminology" in the
Appendix.
The heating water temperature is regu-
lated in accordance with a specified
heating curve and the prevailing out-
side temperature.
For heating curve setting, see
page 24.
Note
To prevent heat being generated
unnecessarily at times when you do not
require central heating, you should
additionally connect a room tempera-
ture controller to your heating system or
activate the time switch program of the
boiler control unit. This enables central
heating to be suspended at night,
for example, in order to save energy.
Operation
Operating modes of the heating system (cont.)
5837147

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Further information can be found
in chapter "Terminology" in the
Appendix.
A time program can be set with any
operating mode:
■ Operation without room temperature
controller
■ Room temperature-dependent opera-
tion
■ Weather-compensated mode
Time phases
In the time program, a day is divided
into one-hour time phases. It is for you
to decide what happens in these time
phases, e.g. whether your rooms
should be heated to the standard room
temperature.
Operating status
For each time phase, you can choose
between 3 operating statuses. The cur-
rently active operating status is shown
next to the additional display (see
page).
II Standard heating mode
IReduced heating mode
0Standby mode
You can set up a time program for the
following functions:
■ Central heating (see page 20)
■ DHW heating (see page 30)
If a time program is set, the symbol
is shown on the display.
Operation
Time program
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We recommend you contact your local
heating contractor if your heating sys-
tem has been out of use for a long
period.
1.
l
0
Â
MODE OK
B
A
Open gas shut-off valve B.
2. Switch ON the power supply, e.g. at
a separate MCB/fuse or a mains
isolator.
3. Turn ON/OFF switch A ON.
The control unit carries out a self-
test after being switched on.
Your heating system and room tem-
perature controller (if installed) are
now ready for operation.
on
Note
Boiler frost protection is enabled.
!Please note
Frost protection is only
ensured for as long as the
power supply is stable.
Switch ON the power supply
(MCB/fuse, mains isolator)
and the control unit ON/OFF
switch.
If a pressure measurement, e.g.
"0.05 MPa", or fault display "06" is
flashing on the display, the pres-
sure in the heating system is too
low. In this case, top up with water
or notify your heating contractor.
on
MPa
Start-up/shutdown
Starting the heating system
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Note
You can check the current pressure
in the heating system.
Press / until "IF00" is shown on
the additional display. The main dis-
play shows the pressure in mega-
pascals (MPa).
MPa
The minimum permissible system
pressure is 0.08 MPa.
Shutting down the heating system
■ If you do not intend using your heat-
ing system for a while, such as during
a summer holiday, switch off central
heating and DHW heating (see
page 27).
■ You can switch your heating system
OFF at the ON/OFF switch if you do
not intend using it.
We recommend you contact your
heating contractor if you are planning
to take your heating system out of
use for long periods.
Your heating contractor can then take
suitable steps, such as frost protec-
tion for the system or heating surface
preservation, as required.
Shutting down the heating system
1.
l
0
Â
MODE OK
B
A
Turn ON/OFF switch A OFF.
The display goes blank.
Start-up/shutdown
Starting the heating system (cont.)
5837147

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2. Close gas shut-off valve B.
Note
The system is no longer protected
against frost.
All control unit settings are retained.
Start-up/shutdown
Shutting down the heating system (cont.)
5837147

18
Further information can be found
in chapter "Terminology" in the
Appendix.
Setting the standard room temperature
Operation without room temperature controller ― Setting the
heating water temperature
If no outside temperature sensor and
no room temperature controller is con-
nected.
The room temperature is influenced by
the heating water temperature. In the
delivered condition, the heating water
temperature is set to 70 °C.
Press the following buttons:
1. MODE repeatedly, until the heating
water temperature appears
on the main display
together with symbols
and , and symbol is
flashing.
°C
2. /
3. OK
for the required value.
Setting range:
20 to 80 °C
(Vitodens 100-W)
40 to 76 °C
(Vitopend 100-W)
to confirm
Room temperature-dependent operation ― Setting the set
room temperature
If no outside temperature sensor is con-
nected, but a room temperature sensor
is.
Central heating
Room temperature
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If the required room temperature is not
achieved, ensure the set room temper-
ature setting is sufficiently high. In the
delivered condition, the set room tem-
perature is set to 20 °C.
Press the following buttons:
1. MODE repeatedly, until the set
room temperature appears
on the main display
together with symbols ,
and , and symbols
and are flashing.
°C
2. / for the selected value
3. OK to confirm
Note
If a room temperature sensor is used
(Viessmann accessories), the use of a
room temperature controller is not nec-
essary. The set value adjustments are
made directly on the boiler control unit.
Weather-compensated mode ― Setting the heating curve
If an outside temperature sensor is con-
nected.
See chapter "Setting the heating curve"
on page 24.
Operating program
Further information can be found
in chapter "Terminology" in the
Appendix.
Central heating
Room temperature (cont.)
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Setting the operating program for central heating and DHW
heating
You want to heat your rooms and you
want to have DHW available.
Press the following buttons:
1. MODE repeatedly, until "SEt"
appears on the main dis-
play, together with a flash-
ing symbol for winter
mode.
2. OK to confirm
3. If there is no demand for central
heating or DHW heating and no time
program is active, only symbol ,
the heating water temperature
(for example 60 °C) and the current
time are displayed.
on
°C
If there is a current demand or a
time program is active, you may also
see additional symbols.
Time program
Further information can be found
in chapter "Terminology" in the
Appendix.
Central heating
Operating program (cont.)
5837147