558330

Viessmann Vitodens 100-W type WB1C Handleiding

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Installation and service
instructions
for contractors
VIESMANN
Vitodens 100-W
Type WB1C, 6.5 to 35.0 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
Gas Council no.: 41-819-20 - 22, 41-819-26 - 29
For applicability, see the last page
VITODENS 100-W
5609 059 GB 2/2012
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 instructions are exclusively
designed for qualified personnel.
■ Work on gas equipment must only be
carried out by a qualified gas fitter.
■ Work on electrical equipment must
only be carried out by a qualified elec-
trician.
■ The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations
Observe the following when working on
this system
■ all legal instructions regarding the pre-
vention of accidents,
■ all legal instructions regarding envi-
ronmental protection,
■ the Code of Practice of relevant trade
associations,
■ all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards,
■ Gas Safety (Installation & Use) Regu-
lations
– the appropriate Building Regulation
either the Building regulations, the
Building Regulation (Scotland),
Building Regulations (Northern Ire-
land),
– the Water Fittings Regulation or
Water Bylaws in Scotland,
– the current I.E.E. Wiring Regula-
tions.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■ Never 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 from outside the build-
ing.
■ Shut off the electricity supply to
the building from a safe place
(outside the building).
Safety instructions
Safety instructions
5609 059 GB
3
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 leading to the
living space.
Working on the system
■ When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing a separate fuse or by
means of a main isolator.
■ Safeguard the system against unau-
thorised reconnection.
!
Please note
Electronic modules can be dam-
aged by electro-static dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!
Please note
Repairing components which ful-
fil a safety function can compro-
mise the safe operation of your
heating system.
Replace faulty components only
with original Viessmann spare
parts.
Ancillary components, spare and
wearing parts
!
Please note
Spare and wearing parts which
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
non-approved modifications/con-
version can compromise safety
and may invalidate our warranty.
For replacements, use only orig-
inal spare parts from Viessmann
or those which are approved by
Viessmann.
Safety instructions
Safety instructions
(cont.)
5609 059 GB
4
Installation instructions
Product information........................................................................................... 6
Preparing for installation................................................................................... 7
Installation sequence
Fitting the boiler and making connections............................................................ 10
Opening the control unit casing............................................................................ 16
Electrical connections........................................................................................... 17
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 23
Further details regarding the individual steps....................................................... 24
Troubleshooting
Function sequence and possible faults................................................................ 44
Fault messages on the display............................................................................. 45
Repairs................................................................................................................. 49
Gas type conversion
Converting from LPG to natural gas .................................................................... 59
Control unit
Functions and operating conditions in weather-compensated mode................... 61
Designs
Connection and wiring diagram............................................................................ 62
Parts lists
Ordering parts...................................................................................................... 64
Overview of the assemblies................................................................................. 65
Sheet metal parts assembly................................................................................. 66
Heat cell assembly............................................................................................... 67
Burner assembly.................................................................................................. 68
Hydraulic assembly.............................................................................................. 70
System boiler hydraulic assembly........................................................................ 72
Combi hydraulic assembly................................................................................... 74
Control unit assembly........................................................................................... 75
Miscellaneous assembly...................................................................................... 77
Specification....................................................................................................... 78
Index
Index
5609 059 GB
5
Certificates
Declaration of conformity...................................................................................... 80
Keyword index.................................................................................................... 81
Index
Index
(cont.)
5609 059 GB
6
Vitodens 100-W, type WB1C
Preset for operation with natural gas.
Conversion to LPG P requires a gas con-
version kit.
Conversion for other countries
The Vitodens 100-W should generally
only be delivered to those countries
specified on the type plate. For deliveries
to alternative countries, an approved
contractor, on his own initiative, must
arrange individual approval in accord-
ance with the law of the country in ques-
tion.
Product description
The Vitodens 100-W is available as a
gas condensing boiler for the connection
of one DHW cylinder and as a gas con-
densing combi boiler with an integral
plate heat exchanger for DHW heating.
For the connection of heating circuits
and the DHW cylinder or the DHW line,
see from page 9.
In the delivered condition, the
Vitodens 100-W is set up for operation
with constant boiler water temperature.
By connecting an outside temperature
sensor (accessory), the boiler can be
operated in weather-compensated
mode.
The following are integrated: one sealed
unvented hydraulic system with 2 con-
nections for heating flow and return, and
2 connections for cylinder heating (gas
condensing boiler) or DHW heating (gas
condensing combi boiler).
These boilers are only intended for
installation in sealed unvented heating
systems. Boilers for open vented heating
systems are also available.
If the Vitodens 100-W is installed in an S
plan or Y plan system, the DHW primary
connections are not used and must be
capped off.
The following components are integra-
ted into the hydraulic system:
■ Circulation pump
■ 3-way diverter valve
■ Safety valve
■ Diaphragm expansion vessel
■ Plate heat exchanger for DHW heating
(gas condensing combi boiler)
DHW heating with DHW cylinder
If a Viessmann Vitocell is connected, a
cylinder temperature sensor will issue
the heat demand (accessory). The cylin-
der temperature sensor is connected to
the boiler control unit. A 230 V cylinder
temperature controller is not required.
If a different DHW cylinder is connected,
the cylinder temperature sensor (acces-
sory) may also be used on this cylinder.
Alternatively, a 230 V cylinder tempera-
ture controller should be connected via
the cylinder demand junction box (part of
the boiler standard delivery).
Connection of accessories
Cylinder temperature sensor, outside
temperature sensor and time switch are
connected to the control unit with low
voltage.
Product information
Product information
5609 059 GB
7
Preparing the boiler installation
Dimensions and connections
34
5
250
68
400
700
58
58
123123
B
A
C E
F
D
156
350
125
860
150
A
Heating flow
B
Gas condensing boiler:
Cylinder flow
Gas condensing combi boiler:
Domestic hot water
C
Gas connection
D
Gas condensing boiler:
Cylinder return
Gas condensing combi boiler:
Cold water
E
Heating return
F
Condensate drain/safety valve
drain: Plastic hose
7
22 mm
Preparing for installation
Preparing for installation
5609 059 GB
Installation
8
Fitting the wall mounting bracket
250
A
Ø10
187
A
Vitodens installation template
Preparing for installation
Preparing for installation
(cont.)
5609 059 GB
9
1. Position the supplied installation tem-
plate on the wall.
2. Mark out the rawl plug holes.
3. Drill 7 10 mm holes and insert the
rawl plugs supplied.
4. Fit wall mounting bracket with screws
supplied.
Fit installation aid or mounting frame
Installation aid or mounting frame
installation instructions
Preparing the connections
!
Please note
To prevent equipment damage,
install all pipework free of load
and torque stresses.
1. Prepare the water connections. Flush
the heating system.
2. Prepare the gas connection.
3. Prepare the electrical connections.
■
Power cable NYM-J 3 x 1.5 mm
2
.
■ Accessory cables:
NYM-O 2-core min. 0.5 mm
2
.
Preparing for installation
Preparing for installation
(cont.)
5609 059 GB
Installation
10
Removing the front panel and mounting the boiler
2x
2.
3.
1.
1. Undo screws at the bottom of the
boiler; do not remove completely.
2. Remove front panel.
3. Hook the boiler into the wall mounting
bracket.
Installation sequence
Fitting the boiler and making connections
5609 059 GB
11
Making connections on the water side
For fittings on the heating water
side and DHW side, see separate
installation instructions.
BA DC E
¨
zz
A
Heating flow
B
Gas condensing boiler:
Cylinder flow
Gas condensing combi boiler:
Domestic hot water
C
Gas connection
D
Gas condensing boiler:
Cylinder return
Gas condensing combi boiler:
Cold water
E
Heating return
Gas condensing boiler
A
C
E
Installation sequence
Fitting the boiler and making connections
(cont.)
5609 059 GB
Installation
12
Gas condensing combi boiler
A
B
C
D
E
F
F
Filling loop
Gas connection
A
1. Connect gas shut-off valve to con-
nection
A
.
Installation sequence
Fitting the boiler and making connections
(cont.)
5609 059 GB
13
2. Carry out a tightness test.
Note
For the tightness test, use only suita-
ble and approved leak detection
agents (EN 14291) and devices.
Leak detection agents with unsuita-
ble constituents (e.g. nitrites, sul-
phides) can lead to material dam-
age.
Remove residues of the leak detec-
tion agent after testing.
!
Please note
Excessive test pressure may
damage the boiler and the gas
valve.
Max. test pressure 150 mbar.
Where higher pressure is
required for tightness tests,
separate the boiler and the
gas valves from the gas sup-
ply pipe (undo the fitting).
3. Purge the gas line.
Installation sequence
Fitting the boiler and making connections
(cont.)
5609 059 GB
Installation
14
Connection, safety valve and condensate drain
A
■ The condensate pipe is connected to
the discharge pipe of the safety valve.
The condensate hose supplied meets
the temperature requirements that are
part of the CE certification.
■ Connecting the condensate pipe inter-
nally to the domestic waste water sys-
tem, either directly or via a tundish or
washing machine trap, is recommen-
ded.
■ If the condensate pipe is routed out-
side the building, use a pipe of at least
7
30 mm and insulate it against frost.
Avoid long outdoor pipework.
!
Please note
Frozen condensate pipes can
result in faults and damage to
the boiler.
Always insulate condensate
pipes against frost.
■ Observe local building regulations.
Connect the condensate pipe
A
with a
constant fall and a pipe vent to the public
sewage system.
Observe the local waste water regula-
tions.
Note
Fill the siphon with water before com-
missioning.
Installation sequence
Fitting the boiler and making connections
(cont.)
5609 059 GB
15
Filling the siphon with water
Fill the flue outlet with a minimum of
0.3 l of water.
!
Please note
At commissioning, flue gas may
be emitted from the condensate
drain.
Fill the siphon with water before
commissioning.
Flue and ventilation air connection
Connect the balanced flue.
During installation and positioning of the
flue system, observe building regula-
tions part L and BS 5440.
Flue system installation instruc-
tions.
Installation sequence
Fitting the boiler and making connections
(cont.)
5609 059 GB
Installation
16
!
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charge.
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
Installation sequence
Opening the control unit casing
5609 059 GB
17
PUMP
X21
L N 1 L N?
GAS
D
X7
FAN
X20
A B
4 3 2 1
OT
C
FE
X1
%
%
Gas condensing boiler:
■ In the case of Viessmann DHW
cylinders: Cylinder temperature
sensor (plug on the cable harness
outside the control unit)
■ In the case of alternative DHW
cylinders compliant with the G3
Directive:
Cylinder demand junction box (for
connection of a cylinder tempera-
ture controller and a 2-way shut-
off valve)
■ Without DHW cylinder:
For operation without a DHW cyl-
inder, set rotary selector "
tw
" to
"0".
A
Only for weather-compensated
mode:
Outside temperature sensor (acces-
sory)
B
OpenTherm device
C
Connecting cable (accessory)
D
Jumper
E
Power supply (230 V, 50 Hz).
See page 21.
F
Vitotrol 100 or on-site room temper-
ature controller (230 V switched
input)
Remove jumper
D
when making
this connection.
Separate installation instruc-
tions
Information on connecting
accessories
For this connection, observe the
separate installation instructions
provided with the accessories.
Installation sequence
Electrical connections
5609 059 GB
Installation
18
Connection of room temperature controller and DHW cylinder with 230 V cyl-
inder temperature controller
C
%
A
E
D
A
Junction box, cylinder demand
B
Jumper, remove when making this
connection
C
Power supply (230 V, 50 Hz).
See page 21.
D
Cylinder temperature controller
230 V
E
Room thermostat
Installation sequence
Electrical connections
(cont.)
5609 059 GB
19
Connection of room temperature controller with time switch and DHW cylinder
with 2-way valve and 230 V cylinder temperature controller
F
E
C
%
G
A H
D
M
1~
A
Junction box, cylinder demand
B
Jumper, remove when making this
connection
C
Power supply (230 V, 50 Hz).
See page 21.
D
Cylinder temperature controller
230 V
E
2-way shut-off valve
F
High limit safety cut-out
G
Time switch
H
Room thermostat
Installation sequence
Electrical connections
(cont.)
5609 059 GB
Installation
20
Cable entry
B
A
A
Power cable, remote control con-
necting cable
B
LV leads (sensor leads)
Outside temperature sensor (accessory)
1. Fit outside temperature sensor.
Installation site:
■ North or north-westerly wall, 2 to
2.5 m above ground level; in multi
storey buildings, in the upper half of
the second floor
■ Not above windows, doors or ven-
tilation outlets
■ Not immediately below balconies
or gutters
■ Never render over
■ Connection:
2-core lead, length max. 35 m with
a cross-section of 1.5 mm
2
2. Plug the lead supplied with the out-
side temperature sensor into slot
"X21".
3. Connect the outside temperature
sensor to terminals 3 and 4.
Installation sequence
Electrical connections
(cont.)
5609 059 GB
21
Power supply
Regulations and Directives
Danger
Incorrectly executed electrical
installations can lead to injury
from electrical current and result
in equipment damage.
Connect the power supply and
implement all safety measures
(e.g. RCD circuit) in accordance
with the following regulations:
■ IEC 60364-4-41
■ VDE regulations
■ Connection requirements
specified by your local power
supply utility
Install an isolator in the power supply line
that simultaneously isolates all non-
earthed conductors from the mains with
at least 3 mm contact separation.
We additionally recommend installing an
AC/DC-sensitive RCD (RCD class B
) for DC (fault) currents that can
occur with energy efficient equipment.
Protect the power cable with an external
fuse/MCB 3 A to BS 1362.
Danger
Incorrect core allocation can
result in serious injury and dam-
age to the appliance.
Take care not to interchange
wires "L1" and "N".
Danger
The absence of component
earthing in the system can lead to
serious injury from electrical cur-
rent if an electrical fault occurs.
Connect the appliance and pipe-
work to the equipotential bonding
of the building in question.
Installation sequence
Electrical connections
(cont.)
5609 059 GB
Installation
22
Routing connecting cables and closing control unit
!
Please note
Connecting cables will be dam-
aged if they touch hot compo-
nents.
When routing and securing
cables/leads on site, ensure that
the maximum permissible tem-
peratures for these cables/leads
are not exceeded.
3.
2.
1.
Installation sequence
Electrical connections
(cont.)
5609 059 GB
23
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
• • •
1. Filling the heating system.............................................. 24
• • •
2. Venting the boiler by flushing....................................... 26
• • •
3. Changing to operation with LPG................................... 27
• • •
4. Checking the static and supply pressure..................... 28
•
5. Matching the burner output to the flue system........... 29
•
6. Reducing the max. heating output................................ 30
•
7. Matching the circulation pump to the heating system 32
•
8. Checking the CO
2
content.............................................
34
• •
9. Burner removal .............................................................. 36
• •
10. Checking the burner gasket and burner gauze
assembly......................................................................... 37
• •
11. Checking and adjusting electrode................................ 38
• •
12. Cleaning the heat exchanger......................................... 39
• •
13. Checking the condensate drain and cleaning the
siphon.............................................................................. 39
• •
14. Burner installation ......................................................... 40
• •
15. Checking the diaphragm expansion vessel and
system pressure............................................................. 41
• • •
16. Checking all connections on the heating water side
and DHW side for leaks
• • •
17. Checking firm seating of electrical connections
• • •
18. Checking gas equipment for tightness at operating
pressure .......................................................................... 42
• •
19. Fitting the front panel..................................................... 42
•
20. Instructing the system user........................................... 43
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5609 059 GB
Service
24
Filling the heating system
!
Please note
Unsuitable fill water increases
the level of deposits and corro-
sion and may lead to boiler dam-
age.
■ Thoroughly flush the entire
heating system prior to filling it.
■ Only use fill water of potable
quality.
■ Soften fill water harder than
300 ppm.
■ An antifreeze additive suitable
for heating systems can be
added to the fill water.
1. Close the gas shut-off valve.
2. Switch ON the power supply.
rr
3. Turn rotary selector "rt" anti-clock-
wise for less than 2 s and then clock-
wise back into the control range.
"SERV", "
r
" and "
w
" will appear
on the display. Filling has been acti-
vated.
This function will end automatically
after 20 min or after the ON/OFF
switch has been turned off.
Commissioning, inspection, maintenance
Further details regarding the individual steps
5609 059 GB
25
Gas condensing boiler
close
open
CB A
1.
Open shut-off valves A and (if fitted)
B
.
2.
Connect fill hose to valve C and
open valve
C
.
3. Fill heating system [a removable fill-
ing loop with double check valve must
be used in UK] (system pressure
0.8 to 1.2 bar).
4.
Close valve C.
Gas condensing combi boiler
B
D
C
A
1.
Open shut-off valves A and (if fitted)
B
.
2.
Open valves C and D.
Note
The cold water supply must be
open.
3. Fill the heating system (system pres-
sure 0.8 to 1.2 bar).
4.
Close valves C and D.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
26
Venting the boiler by flushing
Gas condensing boiler
BC
A
1. Connect the drain hose on shut-off
valve
A
to a drain.
2.
Close shut-off valve B.
3.
Open valves A and C and flush at
mains pressure, until no sound of
escaping air can be heard.
4.
First close valve A and then valve
C
.
5.
Adjust operating pressure ≥ 0.8 bar
with valve
C
.
6.
Open shut-off valve B.
7. Disconnect drain hose and put to one
side.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
27
Gas condensing boiler
A
B
D
C
1. Connect the drain hose on shut-off
valve
A
to a drain.
2.
Close shut-off valve B.
3.
Open valves A, C and D and
flush at mains pressure, until no
sound of escaping air can be heard.
4.
First close valve A and then valves
C
and
D
.
5.
Adjust operating pressure ≥ 0.8 bar
with valves
C
and
D
.
6.
Open shut-off valve B.
7. Disconnect drain hose and put to one
side.
Changing to operation with LPG
In the delivered condition, the boiler is
set up for operation with natural gas. For
operation with LPG, change the gas noz-
zle and convert the gas type in the con-
trol unit.
Separate installation instruc-
tions.
Changing from LPG to natural gas - see
page 59.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
28
Checking the static and supply pressure
Danger
CO build-up as a result of incor-
rect burner adjustment can have
serious health implications.
Carry out a CO test before and
after work on gas appliances.
Operation with LPG
Flush the LPG tank twice during com-
missioning or replacement. Purge the
tank and gas supply line thoroughly after
flushing.
A
1. Close the gas shut-off valve.
2.
Undo screw A inside test nipple
"IN" on the gas train but do not
remove it, and connect the pressure
gauge.
3. Open the gas shut-off valve.
4. Check the static pressure.
Set value: max. 57.5 mbar
5. Start the boiler.
Note
During commissioning, the boiler can
enter a fault state because of airlocks
in the gas line. After approx. 5 s press
Reset to reset the burner.
6. Check the supply (flow) pressure.
Set value:
■ Natural gas: 20 mbar
■ LPG: 37 mbar
Note
Use a suitable measuring device with
a resolution of at least 0.1 mbar to
check the supply pressure.
7. Record the actual values in the report
on page.
Take the action shown in the follow-
ing table.
8. Shut down the boiler, close the gas
shut-off valve, remove the pressure
gauge and close test nipple
A
with
the screw.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
29
9. Open the gas shut-off valve and start
the appliance.
Danger
Gas escaping from the test
nipple leads to a risk of explo-
sion.
Check gas tightness at test
nipple
A
.
Note
The maximum pressure drop
between the gas shut-off valve and
test nipple
A
at the gas train is
0.5 mbar.
Supply pressure (flow pressure) Action
for natural gas for LPG
below 17.4 mbar below 25 mbar Do not start the boiler. Notify your gas
supply utility or LPG supplier.
17.4 to 25 mbar 25 to 47 mbar Start the boiler.
above 25 mbar above 47 mbar Install a separate gas pressure governor
upstream of the system and regulate the
pre-charge pressure to 20 mbar for natu-
ral gas or 37 mbar for LPG. Notify your
gas supply utility or LPG supplier.
Matching the burner output to the flue system
To match the burner output to the sys-
tem's flue pipe length, a correction factor
can be set.
1. Turn ON/OFF switch ON.
r
2. Turn both rotary selectors "tw" and
"
tr
" simultaneously into their
respective central positions.
"SERV" appears on the display.
3. Refer to the following table for the
correction factor required for the con-
nected flue system.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
30
4. Within 2 s, turn rotary selector "tw"
to the top left range.
The display shows "
r
", "
w
", "
A
",
and the selected correction factor
flashes.
In the delivered condition, factor 0
has been set.
r
5. Within 15 s, set rotary selector
"
tr
" to the required correction fac-
tor.
6. The set correction factor is saved
when the value stops flashing, and
the control unit returns to standard
mode.
Correction factor 1 2 3 4 5 6
Flue system Rated
heating
output
(kW)
Max. run length (m)
Open flue operation 7 60 mm 19 4 10 16 22 — —
26/30 2 8 13.5 18.5 22 25
35 5 12 18 23 — —
Balanced flue operation
7
60/100 mm coaxial
19 2 6 10 13 16 19
26/30 1 4 7 10 12 13.5
35 3 6 9 12 14 17
Observe max. flue lengths. A calculated
performance verification is required if the
max. flue lengths in the table are excee-
ded.
Reducing the max. heating output
The max. heating output can be reduced
according to the system requirements.
1. Turn ON/OFF switch ON.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
31
rr
2. Turn rotary selector "tr" fully clock-
wise for less than 2 s and then back
into the r.h. control range.
"SERV" and "
A
" appear on the dis-
play.
3. Select the required max. heating out-
put with rotary selector "
tr
".
Bars for the selected heating output
flash on the display.
A
°C
06
■ Position 1 (1 bar) = lower heating
output.
■ Position 6 (5 bars) = upper heating
output.
4. Test selected heating output by
measuring the gas throughput.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
32
5. Transfer selected heating output:
Turn rotary selector "
tw
" fully clock-
wise for less than 2 s and then back
into the r.h. control range.
During the transfer, the display
shows "– . – . –".
6. Shut down the boiler.
Matching the circulation pump to the heating system
Only for gas condensing combi boilers:
In the delivered condition, the circulation
pump in heating mode is set to stage 1.
If necessary to suit the heating system,
the circulation pump can be set to
stage 2.
600 800 1000 1200 1400
Flow rate in l/h
100
200
300
400
10
20
30
40
kPa
Residual head in mbar
4002000
500
600
700
A
B
C
D
E
A
Gas condensing boiler 26 kW
Gas condensing combi boiler
26 kW, pump stage 1
B
Gas condensing boiler 30 kW
Gas condensing combi boiler 30
and 35 kW, pump stage 1
C
Gas condensing combi boiler
26 kW, pump stage 2
D
Gas condensing boiler 35 kW
Gas condensing combi boiler 30
and 35 kW, pump stage 2
E
Upper operational limit
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
33
1. Turn ON/OFF switch ON.
r
2. Turn both rotary selectors "tw" and
"
tr
" simultaneously into their
respective central positions.
"SERV" appears on the display.
rr
3. Within 2 s, turn rotary selector "tr"
to the top right range.
"
r
" appears on the display and the
set value flashes.
4. Adjust the control unit to stage 1 or
stage 2 by turning rotary selector
"
tw
".
The display shows:
■ "1" for operation with stage 1
or
■ "2" for operation with stage 2.
5. The set operating mode is saved
when the value stops flashing, and
the control unit returns to standard
mode.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
34
Checking the CO
2
content
The Vitodens 100-W is factory-set for
natural gas. During commissioning or
maintenance, the CO
2
and CO have to
be measured at the boiler flue adaptor
test point to check the flue integrity. Sub-
ject to the Wobbe index, the CO
2
content
fluctuates between 7.4 % and 10.5 %.
CO of up to 500 ppm during ignition is
acceptable.
We recommend measuring the O
2
as the
value is unmistakable regarding lambda
(air/gas). The O
2
content fluctuates
between 7.5 % and 3.2 %. The CO/CO
2
ratio has to be less than 0.004.
If the actual CO
2
or O
2
and CO values
deviate from the stated range, check the
balanced flue systems for leaks. If the
flue installation is in order, change the
gas valve.
Note
Operate the appliance with uncontami-
nated combustion air to prevent operat-
ing faults and damage.
A
01. Connect a flue gas analyser at flue
gas port
A
on the boiler flue con-
nection.
02. Start the boiler and check for
leaks.
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
tightness.
rr
03. Turn rotary selector "tr" fully
clockwise for less than 2 s and then
back into the r.h. control range.
The display shows "SERV", "
A
"
and the boiler water temperature is
displayed.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
35
04. Adjust the upper heating output:
Turn rotary selector "
tr
" to the
control range on the right until the
display shows 5 bars for the upper
heating output.
05. Check the CO
2
content for the upper
heating output.
The CO
2
content must be between
7.0 and 10.5 %.
06. Adjust the lower heating output:
Turn rotary selector "
tr
" to the
control range on the left until the dis-
play shows 1 bar for the lower heat-
ing output.
07. Check the CO
2
content for lower
heating output.
The CO
2
content must be between
approx. 0.3 and 0.9 % below the
value for the upper heating output.
08. ■ If the CO
2
content is within the
given range, continue with point
10.
■ If the CO
2
content is outside the
given range, check the flue gas/
ventilation air system for tight-
ness; remedy any leaks.
Replace gas train if required
09. Test the CO
2
content for upper and
lower heating output again.
10. Shut down the boiler, remove the
flue gas analyser and cap flue gas
aperture
A
.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
36
11. Turn both rotary selectors "tw" and
"
tr
" into their respective original
positions.
Burner removal
C
B
DE
A
F
4x
1. Switch the power OFF.
2. Shut off the gas supply.
3. Pull power cables from fan motor
A
, gas valve
B
and electrodes
C
.
4.
Pull venturi extension D from the
fan.
5.
Undo gas supply pipe fitting E.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
37
6.
Undo four screws F and remove the
burner.
!
Please note
Prevent damage.
Never rest the burner on the
burner gauze assembly.
Checking the burner gasket and burner gauze assembly
Check burner gasket A for damage and
replace if required.
Replace the burner gauze assembly if it
is damaged.
2x
A
CD
E
B
1.
Remove electrode B.
2. Undo the two Torx screws and
remove thermal insulating ring
C
.
3. Undo the two Torx screws and
remove burner gauze assembly
D
with gasket
E
.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
38
4. Insert and secure new burner gauze
assembly
D
with new gasket
E
.
!
Please note
Tighten screws sufficiently
to prevent the components
being damaged and to ensure
they function correctly.
5.
Refit thermal insulation ring C.
!
Please note
Tighten screws sufficiently
to prevent the components
being damaged and to ensure
they function correctly.
6.
Fit electrode B.
!
Please note
Tighten screws sufficiently
to prevent the components
being damaged and to ensure
they function correctly.
Checking and adjusting electrode
8+2
4+0,5
1. Check the electrode for wear and
contamination.
2. Clean the electrode with a small
brush (not with a wire brush) or emery
paper.
3. Check the electrode gaps. If the gaps
are not as specified or the electrode
is damaged, replace and align the
electrode together with a new gasket.
Tighten electrode fixing screws.
!
Please note
Tighten screws sufficiently
to prevent the components
being damaged and to ensure
they function correctly.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
39
Cleaning the heat exchanger
A
1.
!
Please note
Scratches on parts that are in
contact with flue gas can lead
to corrosion.
Never use brushes to clean
the heat exchanger.
Use a vacuum cleaner to remove res-
idues from heat exchanger
A
inside
the combustion chamber.
2. If required, spray slightly acidic,
chloride-free cleaning agents based
on phosphoric acid onto heat
exchanger
A
and let the solution
soak in for at least 20 min.
3.
Thoroughly flush heat exchanger A
with water.
Checking the condensate drain and cleaning the siphon
B
A
1.
Pull siphon A upwards out of the
drain connection.
2.
Detach supply hose B from siphon
A
.
3.
Clean siphon A.
4.
Reconnect supply hose B.
5.
Refit siphon A to the drain connec-
tion.
6.
Fill siphon A with water by pouring
about 0.3 l of water into the combus-
tion chamber.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
40
7. Check that condensate can drain
freely and that the connections are
tight.
Burner installation
CB
A
4x
F
E D
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
41
1. Fit the burner and tighten four screws
A
diagonally.
!
Please note
Tighten screws sufficiently
to prevent the components
being damaged and to ensure
they function correctly.
2. Insert new gasket and tighten the fit-
tings on gas supply pipe
B
.
3.
Plug the venturi extension C into the
fan.
4.
Fit electrical cables to fan motor D,
gas valve
E
and ignition unit
F
.
5. Reopen gas supply and switch on
power supply.
6. Check the gas connections for tight-
ness.
Danger
Escaping gas leads to a risk of
explosion.
Check all fittings for gas tight-
ness.
!
Please note
The use of leak detection
spray can result in incorrect
functions.
Leak detection spray must not
reach electrical contacts or
seal diaphragm openings on
the gas valve.
Checking the diaphragm expansion vessel and system pressure
Note
The diaphragm expansion vessel can
lose some charge pressure over a time
in use. When the boiler heats up, the
pressure gauge will indicate a higher
pressure of 2 or 3 bar. The safety valve
too can respond and discharge excess
pressure.
Check whether the installed diaphragm
expansion vessel is adequate for the
system water volume.
Carry out this test on a cold system.
1. Drain the system or close the cap
valve on the diaphragm expansion
vessel and reduce the pressure until
the pressure gauge indicates "0".
2. If the pre-charge pressure of the dia-
phragm expansion vessel is lower
than the static system pressure, top
up with nitrogen until the pre-charge
pressure is raised by 0.1 to 0.2 bar.
3. Top up with water until the charge
pressure of the cooled system is at
least 1.0 bar and 0.1 to 0.2 bar higher
than the pre-charge pressure of the
diaphragm expansion vessel.
Permiss. operating pressure: 3 bar
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
42
Checking gas equipment for tightness at operating pressure
Danger
Escaping gas leads to a risk of
explosion.
Check gas equipment for tight-
ness.
!
Please note
The use of leak detection spray
can result in incorrect functions.
Leak detection spray must not
reach electrical contacts or seal
diaphragm openings on the gas
valve.
Fitting the front panel
2x
1.
2.
1. Hook the front panel into place. 2. Tighten screws at the bottom.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
43
Instructing the system user
The system installer must hand the oper-
ating instructions to the system user and
instruct the user in the operation of the
system.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB
Service
44
Display Action
Control unit issues
a heat demand
No
Increase set value
and ensure heat is
drawn off
Yes
Fan starts
No
After approx. 1 min
fault F9
Check the fan, fan
connecting cables,
power at the fan
and fan control
Yes
Ignition
No
Fault F4
Check the ignition
module connec-
tion
Yes
Gas train opens
No
Fault F4
Check the gas
train (control volt-
age 230 V); check
the gas supply
pressure
Yes
Ionisation current
builds (greater
than 2 µA)
Symbol
A
No
Fault F4
Check the ionisa-
tion current, check
the electrode
adjustment, con-
densate drain and
the gas line for air-
locks.
Troubleshooting
Function sequence and possible faults
5609 059 GB
45
Yes
Burner in opera-
tion
No
Stops below the set
boiler water tem-
perature and
restarts immedi-
ately
Check the flue sys-
tem for tightness
(flue gas recircula-
tion), check the
gas flow pressure
Fault messages on the display
2f
Faults are indicated by a flashing fault
code with fault symbol "
U
" on the dis-
play.
For fault code explanations see the fol-
lowing table.
Displayed
fault code
System characteris-
tics
Cause Measures
10 Constant mode Short circuit, out-
side temperature
sensor
Check the outside tem-
perature sensor and lead
(see page 49).
18 Constant mode Lead break, out-
side temperature
sensor
Check the outside tem-
perature sensor and lead
(see page 49).
30 Burner blocked Short circuit, boiler
water temperature
sensor
Check the boiler water
temperature sensor (see
page 51).
38 Burner blocked Lead break, boiler
water temperature
sensor
Check the boiler water
temperature sensor (see
page 51).
50 No DHW heating Short circuit, cylin-
der temperature
sensor
Check the sensor (see
page 52).
Troubleshooting
Function sequence and possible faults
(cont.)
5609 059 GB
Service
46
Displayed
fault code
System characteris-
tics
Cause Measures
51 No DHW heating Short circuit, outlet
temperature sen-
sor
Check the sensor (see
page 54).
52 Burner blocked Short circuit, flow
sensor
Check connections and
lead; replace sensor if
required.
58 No DHW heating Lead break, cylin-
der temperature
sensor
Check the sensor (see
page 52).
59 No DHW heating Lead break, outlet
temperature sen-
sor
Check the sensor (see
page 54).
5 A Burner blocked Lead break, flow
sensor
Check connections and
lead; replace sensor if
required.
A9 Control mode without
OpenTherm device
Communication
fault OpenTherm
device
Check connections and
lead; replace OpenTherm
device if required.
b0 Burner blocked Short circuit, flue
gas temperature
sensor
Check the sensor (see
page 55).
b8 Burner blocked Lead break, flue
gas temperature
sensor
Check the sensor (see
page 55).
E3 Burner in a fault
state
Fault in safety
chain
Check the temperature
limiter and connecting
leads (see page 53).
Check the control unit,
and replace if required.
E5 Burner blocked Internal fault Check the ionisation elec-
trode and cables.
Press "Reset" (see
page 48).
F0 Burner blocked Internal fault Replace control unit.
F1 Burner in a fault
state
Max. flue gas tem-
perature exceeded
Check heating system fill
level. Check circulation
pump. Vent the system.
Press "Reset" (see
page 48).
Troubleshooting
Fault messages on the display
(cont.)
5609 059 GB
47
Displayed
fault code
System characteris-
tics
Cause Measures
F2 Burner in a fault
state
The temperature
limiter has respon-
ded
Check heating system fill
level. Check circulation
pump. Vent the system.
Check the temperature
limiter and connecting
leads (see page 53).
Press "Reset" (see
page 48).
F3 Burner in a fault
state
Flame signal is
already present at
burner start
Check ionisation elec-
trode and connecting
cable.
Press "Reset" (see
page 48).
F4 Burner in a fault
state
No flame signal Check the ignition/ionisa-
tion electrode and cables,
check the gas pressure,
check the gas train, igni-
tion, ignition module and
condensate drain.
Press "Reset" (see
page 48).
F8 Burner in a fault
state
Fuel valve closes
too late
Check gas train. Check
both control paths.
Press "Reset" (see
page 48).
F9 Burner in a fault
state
Fan speed too low
during burner start
Check fan, fan connecting
cables and power supply;
check fan control.
Press "Reset" (see
page 48).
FA Burner in a fault
state
Fan not at stand-
still
Check fan, fan connecting
cables and fan control.
Press "Reset" (see
page 48).
FC Burner blocked Electrical fan con-
trol (control unit)
faulty
Check fan connecting
cable; if required, replace
or replace control unit.
Troubleshooting
Fault messages on the display
(cont.)
5609 059 GB
Service
48
Displayed
fault code
System characteris-
tics
Cause Measures
Fd Burner blocked Fault, burner con-
trol unit
Check ignition electrodes
and connecting cables.
Check whether a strong
interference (EMC) field
exists near the appliance.
Press "Reset" (see
page 48).
Replace control unit if
fault persists.
FF Burner blocked Fault, burner con-
trol unit
Check ignition electrodes
and connecting cables.
Check whether a strong
interference (EMC) field
exists near the appliance.
Press "Reset" (see
page 48).
Replace control unit if
fault persists.
Press reset
r
Turn rotary selector "rt" to "U
RESET" for less than 2 s, then back into
the control range.
Troubleshooting
Fault messages on the display
(cont.)
5609 059 GB
49
Removing the front panel
2x
2.
1.
1. Undo screws at the bottom of the
boiler; do not remove completely.
2. Remove front panel.
Outside temperature sensor
1. Open the control unit casing. See
page 16.
Troubleshooting
Repairs
5609 059 GB
Service
50
X21 X7
X20
4 3 2 1
2. Disconnect leads from outside tem-
perature sensor.
100
10
-15
-10
-5 10 20 30
Temperature in °C
4
6
8
20
40
60
80
Resistance in kΩ
0
3. Check the sensor resistance and
compare it with the curve.
4. Replace the sensor in the case of
severe deviation.
Troubleshooting
Repairs
(cont.)
5609 059 GB
51
Boiler water temperature sensor
A
1. Pull the leads from boiler water tem-
perature sensor
A
and check the
resistance.
Troubleshooting
Repairs
(cont.)
5609 059 GB
Service
52
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance in kΩ
2. Check the sensor resistance and
compare it with the curve.
3. In case of severe deviation, drain
boiler on the heating water side and
replace the sensor.
Danger
The boiler water temperature
sensor is immersed in the
heating water (risk of scald-
ing).
Drain the boiler before replac-
ing the sensor.
Checking cylinder temperature sensor (gas condensing boiler)
X21
X7
X20
5
X21 X7
X20
5
1.
Remove plugs % from the cable har-
ness and check the resistance.
Troubleshooting
Repairs
(cont.)
5609 059 GB
53
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance in kΩ
2. Compare the sensor resistance with
the curve.
3. Replace the sensor in the case of
severe deviation.
Checking the temperature limiter
A
If the burner control unit cannot be reset
after a fault shutdown, although the
boiler water temperature is below
approx. 95 °C, check the temperature
limiter.
1. Pull the leads from temperature lim-
iter
A
.
2. Check the continuity of the tempera-
ture limiter with a multimeter.
3. Remove the faulty temperature lim-
iter.
4. Install a new temperature limiter.
5. Press "Reset" at the control unit (see
page 48).
Troubleshooting
Repairs
(cont.)
5609 059 GB
Service
54
Checking the outlet temperature sensor (gas condensing combi
boiler)
A
1. Pull leads from outlet temperature
sensor
A
.
2. Check the sensor resistance and
compare it with the curve.
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance in kΩ
3. Replace the sensor in the case of
severe deviation.
Note
Water can leak when replacing the
outlet temperature sensor. Shut off
the cold water supply. Drain the DHW
line and the plate heat exchanger
(DHW side).
Troubleshooting
Repairs
(cont.)
5609 059 GB
55
Checking the flue gas temperature sensor
A
1. Pull leads from flue gas temperature
sensor
A
.
2. Check the sensor resistance and
compare it with the curve.
Troubleshooting
Repairs
(cont.)
5609 059 GB
Service
56
10
1
10 30 50 70 90 110
Temperature in °C
0.4
0.6
0.8
2
4
6
8
20
Resistance in kΩ
3. Replace the sensor in the case of
severe deviation.
Replacing flow limiter (gas condensing combi boiler)
B
A
C
1. Drain the boiler from the DHW side.
2. Pivot the control unit downwards.
3.
Undo screws A.
4.
Remove cap B.
5.
Remove faulty flow limiter C.
6.
Select new flow limiter C corre-
sponding to boiler serial no. (see type
plate) and the following table.
7.
Insert new flow limiter C.
8.
Fit new cap B provided.
Serial no.
(Type plate)
Flow rate
l/min
Colour
7499425 10 black
7499427 12 red
7499429 14 brown
Troubleshooting
Repairs
(cont.)
5609 059 GB
57
Checking or replacing the plate heat exchanger (gas condensing
combi boiler)
A
B
D
C
D
E F
H G
E
Heating water flow
F
Heating water return
G
Cold water
H
Domestic hot water
1. Shut off and drain the boiler on the
heating water and the DHW side.
2. Flip down control unit.
3.
Push servomotor A slightly
upwards.
4.
Turn adaptor B with servomotor A
1/8 of a turn anti-clockwise and
remove.
Troubleshooting
Repairs
(cont.)
5609 059 GB
Service
58
5.
Remove two screws C from the
plate heat exchanger and remove
plate heat exchanger
D
with gas-
kets.
Note
During removal, small amounts of
water may trickle out and escape
from the plate heat exchanger.
6. Check the DHW side for scaling and
if required clean or replace the plate
heat exchanger.
7. Check the heating water side for con-
tamination and if required clean or
replace the plate heat exchanger.
8. Install in reverse order with new gas-
kets.
Note
During installation, ensure that fixing
holes are aligned and gaskets seated
correctly. Install the plate heat
exchanger the correct way round.
Checking the fuse
F4
1. Switch the power OFF.
2. Open control unit casing (see
page 16).
3. Check fuse F4.
Troubleshooting
Repairs
(cont.)
5609 059 GB
59
Removing gas restrictor
B
C
E
D
F A
1.
Pull cable from gas train A.
2.
Remove union nut B.
3.
Undo two screws C and remove gas
train
A
.
4.
Remove gas restrictor D from gas
train
A
.
5.
Mount gas train A with new gaskets
E
and
F
.
!
Please note
Tighten screws sufficiently
to prevent the components
being damaged and to ensure
they function correctly.
6. Remove or void gas type sticker on
the top of the boiler (next to the type
plate).
7. Start the boiler and check for leaks.
Danger
Escaping gas leads to a risk of
explosion.
Check gas equipment for
tightness.
Gas type conversion
Converting from LPG to natural gas
5609 059 GB
Service
60
Converting the gas type at the control unit
1. Turn ON/OFF switch ON.
r
2. Turn both rotary selectors "tw" and
"
tr
" simultaneously into their
respective central positions.
"SERV" appears on the display.
rr
3. Turn rotary selector "tr" fully anti-
clockwise within 2 s.
The set value and "
A
" flash on the
display.
4. Adjust the control unit to natural gas
or LPG by turning rotary selector
"
tw
".
The display shows:
■ "0" for operation with natural gas
or
■ "1" for operation with LPG.
5. The set operating mode is saved
when the value stops flashing, and
the control unit returns to standard
mode.
Checking the CO
2
content
See page 34.
Gas type conversion
Converting from LPG to natural gas
(cont.)
5609 059 GB
61
In weather-compensated mode, the
boiler water temperature is regulated
subject to the outside temperature.
Heating curve of weather-compensated control unit
Outside temperature in °C
Boiler water or
flow temperature in °C
90
80
70
60
50
40
30
0 -5 -10 -15 -205101520
20
10
0
A
B
C
D
E
F
G
Setting of rotary selector "tr"
A
= 1
B
= 2
C
= 3
D
= 4
E
= Delivered condition
F
= 5
G
= 6
Frost protection function
Frost protection function is only possible
when an outside temperature sensor is
connected.
Frost protection function becomes active
at outside temperatures of < 5 °C. The
burner is switched on and the boiler
water temperature is held at 20 °C.
Control unit
Functions and operating conditions in weather-compensated mode
5609 059 GB
Service
62
M
A
D
E
F
GHKL
B
C
A
Stepper motor diverter valve
B
Ignition/ionisation
C
Vitotrol 100 type UTA or on-site
room temperature controller
(switched 230 V input)
Designs
Connection and wiring diagram
5609 059 GB
63
D
Vitotrol 100 type RT or on-site
room temperature controller
(switched 230 V input)
E
Vitotrol 100 type UTDB or on-site
room temperature controller
(switched 230 V input)
F
Mains input 230 V/50 Hz
G
Remote control (OpenTherm
device)
H
Outside temperature sensor
(accessory)
K
Time switch (accessory)
L
Gas pressure switch (acces-
sory)
M
PCB inside the control unit
X ... Electrical interface
§
Boiler water temperature sensor
$
Outlet temperature sensor (gas
condensing combi boiler)
%
Gas condensing boiler:
■ In the case of DHW cylinders
from Viessmann: Cylinder tem-
perature sensor
■ In the case of alternative DHW
cylinders compliant with the G3
Directive:
Cylinder demand junction box
(for connection of a 230 V cyl-
inder temperature controller
and a 2-way shut-off valve)
aG
Flue gas temperature sensor
sÖ
Circulation pump 230 V~
dG
Gas solenoid valve
fJ
Temperature limiter
a-Ö
Fan motor 230 V~
a-ÖA
Fan control
aVL
Flow sensor
Designs
Connection and wiring diagram
(cont.)
5609 059 GB
Service
64
The following information is required:
■
Serial no. (see type plate A)
■ Assembly (from this parts list)
■ Position number of the individual part
within the assembly (from this parts
list)
Obtain standard parts from your local
supplier.
Parts lists
Ordering parts
5609 059 GB
65
A
B C
D
E
F
A
Type plate
B
Sheet metal parts assembly
C
Hydraulic assembly
D
Control unit assembly
E
Heat cell assembly
F
Miscellaneous assembly
Parts lists
Overview of the assemblies
5609 059 GB
Service
66
0001 Front panel
0002 Profiled seal
0003 Logo
0004 Strain relief upper part
0005 Air box floor
0006 Diaphragm grommets (set)
0007 Wall mounting bracket
0008 Control flap
0002
0004
0006
0005
0008
0001
0002
0007
Parts lists
Sheet metal parts assembly
5609 059 GB
67
0001 Gasket DN 60
0002 Boiler flue connection
0003 Boiler flue connection plug
0004 Flue gas gasket
0005 Flue gas temperature sensor
0006 Heat exchanger
0007 Condensate hose
0008 Siphon
0009 Tee
0010 Gas pipe
0011 Gasket 17 x 24 x 2 (set)
0012 Burner
0013 Thermal insulation block
0014 Heat exchanger mounting (set)
0015 O-ring gasket set 20.6 x 2.6
0016 Condensate hose 400 mm long
0014
0002
0001
0001
0003
0006
0004
0013
0014
0015
0008
0007
0009
0016
0013
0015
0003
0005
0004
0010
0012
0011
0011
Parts lists
Heat cell assembly
5609 059 GB
Service
68
0001 Burner gasket
0002 Insulation ring
0003 Cylinder burner gauze assembly
0004 Burner gauze assembly gasket
0005 Burner door
0006 Ionisation electrode gasket
0007 Ignition and ionisation electrode
0008 Burner door flange gasket
0009 Radial fan
0010 Gas valve
0012 Venturi extension
0013 Gasket A 17 x 24 x 2 (set)
0014 Conversion kit G31
0015 Gasket set G27 (not GB)
0016 Conversion kit G2.350/G27 (not
GB)
Parts lists
Burner assembly
5609 059 GB
69
0004
0006
0015
0016
0015
0013
0012
00140010
0013
0009
0008
0007 0006 0005 0004
0003 0002 0001
Parts lists
Burner assembly
(cont.)
5609 059 GB
Service
70
0001 Diaphragm expansion vessel
0002 Support block, diaphragm expan-
sion vessel
0003 Gasket A 10 x 15 x 1.5 (set)
0004 Connection line; diaphragm
expansion vessel
0005 Heating water return connection
elbow
0006 Moulded hose heating water
return
0007 Hose clip DN 25
0008 Clip Ø 10 (5 pce)
0009 Clip Ø 8 (5 pce)
0010 O-ring gasket set 20.6 x 2.6
0011 Air vent valve G ⅜
0012 Temperature sensor
0013 Round sealing ring 8 x 2
0014 Moulded hose heating water flow
0015 Clip Ø 18 (5 pce)
0016 O-ring 17 x 4 (5 pce)
0017 Pressure gauge
0018 Clip Ø 8 (5 pce)
0019 Hose connector adaptor
0020 Thermal circuit breaker
0021 Heating water flow connection
elbow
0022 Hydraulics
Parts lists
Hydraulic assembly
5609 059 GB
71
0022
0016
0019
0007
0006
0007
0005
0001
0002
0010
0003
0007
0010
0009
0004
0013
0017
0008
0008
0016
0015
0007
0014
0007
0018
0003
0020
0010
0003
0009
0012
0007
0007
0015
0016
0015
0019
0007
0015
0016
0011
0007
0021
0007
0010
0018
Parts lists
Hydraulic assembly
(cont.)
5609 059 GB
Service
72
0001 Air vent valve
0002 O-ring 34 x 3 (5 pce)
0004 Gasket set, plate heat exchanger
0005 Safety valve 3 bar
0007 Special safety valve clip (5 pce)
0008 Pump motor
0009 Bypass cartridge
0012 Clip Ø 16 (5 pce)
0014 Stepper motor adaptor
0015 Linear stepper motor
0016 Oval cap seal (5 pce)
0020 Hydraulics
0021 O-ring 19.8 x 3.6 (5 pce)
0022 O-ring 16 x 3 (5 pce)
0023 Check valve
0026 Clip Ø 18 (5 pce)
0031 O-ring 17 x 4 (5 pce)
Parts lists
System boiler hydraulic assembly
5609 059 GB
73
0020
0014
0001
0004
0007
0009
0015
0016
0026
0002
0012
0022
0012
0022
0023
0023
00220009
0012
0021
0031
0031
0021
00260008
0004
0005
0007
0001
0002
0016
0015
0014
Parts lists
System boiler hydraulic assembly
(cont.)
5609 059 GB
Service
74
0001 Air vent valve
0002 O-ring 34 x 3 (5 pce)
0003 Plate heat exchanger
0004 Gasket set, plate heat exchanger
0005 Safety valve
0006 Clip Ø 8 (5 pce)
0007 Safety valve clip (5 pce)
0008 Pump motor
0009 Bypass cartridge
0010 Flow sensor
0011 Clip Ø 10 (5 pce)
0012 Clip Ø 16 (5 pce)
0014 Stepper motor adaptor
0015 Linear stepper motor
0016 Oval cap seal (5 pce)
0017 Water volume controller
0018 Temperature sensor
0020 Hydraulics
0021 O-ring 19.8 x 3.6 (5 pce)
0022 O-ring 16 x 3 (5 pce)
0023 Check valve
0026 Clip Ø 18 (5 pce)
0027 O-ring 9.6 x 2.4 (5 pce)
0029 Expansion tank
0031 O-ring 17 x 4 (5 pce)
Parts lists
Combi hydraulic assembly
5609 059 GB
75
00220023
0006
0012
0012
0022
0012
0022
0023
0011
0027
0002
00040014
0001, 0004, 0006,
0009
, 0010, 0011,
0017
, 0018, 0021,
0024
, 0026, 0027
0011
0029
0009
0006
0020
0027
0010
0021
0031
0026
0031
0021
0008
0001
000200050007
0006
0018
0016
0017
0014
0015
0004
0003
Control unit assembly
0001 Cover, wiring chamber
0002 Clip hinge
0003 Profiled seal
0004 Control unit
Parts lists
Combi hydraulic assembly
(cont.)
5609 059 GB
Service
76
0005 Cable harness X20
0006 Ignition cable with elbow plug
5 kΩ
0007 Gas valve cable
0008 Fan connecting cable
0009 Cable harness stepper motor
0010 Fuse 2.5 A (slow) 250 V
0009
0010
0003
0002
0008000700060005
0004
0001
0003
0002
0010
0002
Parts lists
Control unit assembly
(cont.)
5609 059 GB
77
0001 Spray paint, Vitowhite
0002 Touch-up paint stick, Vitowhite
0003 Special grease
0004 Operating instructions
0005 Installation and service instruc-
tions
0005
0004
0003
0002
0001
Parts lists
Miscellaneous assembly
5609 059 GB
Service
78
Rated voltage: 230 V~
Rated frequency: 50 Hz
Rated current: 2.0 A~
Safety category: I
IP rating: IP X4 to EN 60529
Permissible ambient temperature
■ during operation: 0 to +40 °C
■ during storage and
transport: -20 to +65 °C
Temperature limiter
setting: 100 °C (fixed)
Backup fuse (power
supply): 3 A
Gas boiler, category II
2H3P
Rated heating output
range in heating mode
T
V
/T
R
50/30 °C kW 6.5 – 19 6.5 – 26 8.8 – 30 8.8 – 35
T
V
/T
R
80/60 °C kW 5.9 –
17.3
5.9 –
23.7
8.0 –
27.3
8.0 – 31.9
Rated heating output
range
for DHW heating (gas con-
densing combi boiler)
kW —
5.9 –
26.0
8.0 –
30.0
8.0 – 35.0
Rated heat input range kW
6.1 –
17.8
6.1 –
24.3
8.2 –
28.0
8.2 – 32.7
Connection values
*1
relative to the max. load
with:
- Natural gas E
m
3
/h
1.9 2.6 3.0 3.5
- LPG P kg/h 1.4 1.9 2.2 2.6
Power consumption
(max.)
- Gas condensing boiler W 102 107 106 154
- Gas condensing combi
boiler
W — 119 132 158
Gas condensing combi
boiler (DHW heating)
Permiss. operating pres-
sure
bar — 10 10 10
*1
The connection values are only for documentation purposes (e.g. in the gas con-
tract application) or to estimate a supplementary volumetric settings check. Due to
the factory settings, the gas pressure must not be altered from these values. Ref-
erence: 15 °C, 1013 mbar.
Specification
Specification
5609 059 GB
79
Rated heating output
range in heating mode
T
V
/T
R
50/30 °C kW 6.5 – 19 6.5 – 26 8.8 – 30 8.8 – 35
T
V
/T
R
80/60 °C kW 5.9 –
17.3
5.9 –
23.7
8.0 –
27.3
8.0 – 31.9
Rated water volume
at ΔT 35 K (to EN 13203)
l/min — 10.6 12.3 14.3
Set flow rate (max.) l/min — 10.0 12.0 14.0
Product ID
_-0085BT0029
Specification
Specification
(cont.)
5609 059 GB
Service
80
Declaration of Conformity for the Vitodens 100-W
We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm as sole respon-
sible body that the product Vitodens 100-W complies with the following standards:
EN 297 EN 55 014-2
EN 483 EN 60 335-1
EN 625 EN 60 335-2-102
EN 677 EN 61 000-3-2
EN 806 EN 61 000-3-3
EN 12 897 EN 62 223
EN 55 014-1
In accordance with the following Directives, this product is designated with
_
-0085:
92/42/EEC 2006/95/EC
2004/108/EC 2009/142/EC
This product complies with the requirements of the Efficiency Directive
(92/42/EEC) for condensing boilers.
Allendorf, 1 January 2012 Viessmann Werke GmbH&Co KG
Authorised signatory Manfred Sommer
Certificates
Declaration of conformity
5609 059 GB
81
B
Boiler water temperature sensor .......51
Burner gasket.....................................37
Burner gauze assembly.....................37
Burner installation..............................40
Burner removal..................................36
C
Cleaning the combustion chamber....39
Cleaning the heat exchanger.............39
Commissioning..................................24
Condensate........................................14
Condensate drain.........................14, 39
Connection diagram...........................62
Connections.......................................11
Connections on the water side...........11
Cylinder temperature sensor .............52
D
Declaration of Conformity..................80
E
Electrical connections........................17
F
Fault code..........................................45
Fault messages..................................45
Filling function....................................24
Filling the system.........................24, 25
Flow limiter.........................................56
Flue gas temperature sensor.............55
Flue pipe............................................15
Frost limit...........................................61
Frost protection..................................61
Function sequence.............................44
Fuse...................................................58
G
Gas connection..................................12
Gas supply pressure..........................28
Gas train ...........................................28
Gas type conversion 59
■ LPG................................................27
■ Natural gas.....................................59
H
Heating curve.....................................61
I
Ignition...............................................38
Ignition electrode................................38
Ionisation electrode............................38
M
Max. Heating output...........................30
O
Opening the control unit.....................16
Outlet temperature sensor.................54
Output matching
■ Flue pipe length..............................29
Outside temperature sensor .............49
P
Plate heat exchanger.........................58
Power supply.....................................21
Pump stage 2.....................................32
R
Reducing the heating output..............30
Reset..................................................48
S
Safety chain ......................................53
Safety valve.......................................14
Siphon..........................................15, 39
Specification ......................................78
Static pressure...................................28
Supply pressure.................................28
System pressure................................25
Keyword index
Keyword index
5609 059 GB
82
T
Temperature limiter............................53
Troubleshooting.................................49
V
Ventilation air pipe.............................15
Venting...............................................26
W
Wall mounting......................................8
Weather-compensated mode.............61
Keyword index
Keyword index
(cont.)
5609 059 GB
83
5609 059 GB
84
Applicability
Serial No.:
7499423 7499424 7499425 7499426
7499427 7499428 7499429
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: info-uk@viessmann.com
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
5609 059 GB Subject to technical modifications.
… 42 …

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Viessmann-Vitodens-100-W-type-WB1C

  • Graag een foto van de aansluitingen van de Viessman Vitodens 100 WB1C aub Gesteld op 27-2-2025 om 13:30

    Reageer op deze vraag Misbruik melden

  • Na een onderhoud blijft de ketel continu branden het indicatie puntje op het scherm blijft knipperen. Mijn verbruik is sindsdien enorm gestegen terwijl ik zelfs op vakantie was en dus nauwelijks verwarmde en geen warm water verbruikte. Gesteld op 27-2-2025 om 11:16

    Reageer op deze vraag Misbruik melden

  • Betreft Viessman Vitodens 100W WB1C hier komen 2 magneetventielen aan te pas ,waar aansluiten ? Gesteld op 25-2-2025 om 20:46

    Reageer op deze vraag Misbruik melden

  • Ik heb een Vitodens 100W, sedert één jaar. Dit is een doorstroom toestel zonder waterreservoir.
    Ik heb de werkingstemperatuur op 82°C ingesteld. Blijkbaar is dit het maximum. Desondanks kan ik de omgevingstemperatuur in onze woning niet hoger krijgen dan 20°C. Nu is de buitentemperatuur 3°C, ik ben bang, wanneer deze onder het vriespunt zal gaan, we onvoldoende gaan kunnen verwarmen. Is er een mogelijkheid om de werking van de gasketel aan te passen? Gesteld op 5-12-2023 om 10:52

    Reageer op deze vraag Misbruik melden

    • Ik stel mij ook veel vragen over dit toestel maar niemand kent het of reageert. Bij mij slaagt die af bij verwarming op en douche aan Geantwoord op 5-12-2023 om 11:21

      Waardeer dit antwoord (1) Misbruik melden

  • Ik heb hetzelfde probleem. Als de temperatuur buiten, beneden de 0°C zakt moet ik een electrisch verwarmingstoestel inschakelen (1000 of 2000 watt) om de temperatuur binnen op 20°C te krijgen en te houden. Wat ik niet begrijp is dat de app van Viessmann aangeeft dat het rendement van de ketel ongeveer 40% bedraagt. Bij nazicht van mijn installateur heeft die het debiet van de circulatiepomp op het maximum gebracht. Momenteel kan ik zo verder, maar wat als de buitentemperatuur ver onder nul zakt? Geantwoord op 26-2-2025 om 16:08

    Waardeer dit antwoord Misbruik melden

  • er is een nieuwe viesmann vitodens 100 w geinstalleerd mijn vraag is of het normaal is dat het groen
    lichtje constant blijft knipperen Gesteld op 19-9-2023 om 14:04

    Reageer op deze vraag Misbruik melden

  • Het rood storingslichtje van mijn Vitopend 100 knippert en op het display knippert 24 en er staat een klokje.
    Wat zou het probleem kunnen zijn ? Gesteld op 26-2-2023 om 11:26

    Reageer op deze vraag Misbruik melden
6

  • Wat is het voordeligste betreft verbruik? Ketel op eco of. Comfort Gesteld op 29-9-2022 om 12:47

    Reageer op deze vraag Misbruik melden

  • als de ketel thermostaat tussen 4. 5.staat hoeveel graden is dit aub
    Gesteld op 28-9-2022 om 15:44

    Reageer op deze vraag Misbruik melden

  • Werkt viessmann vitodens 100 met tado slimme thermostaat v1 Gesteld op 15-12-2021 om 16:26

    Reageer op deze vraag Misbruik melden

  • ik had graag meer duidelijkheid gekregen hoe ik het warm water van mijn Vitodens 100 kan instellen om zuinig te werken. Gesteld op 2-10-2021 om 14:15

    Reageer op deze vraag Misbruik melden

  • HOEVEEL IS DEKOSTPRIJS VAN EEN ONDERHOUDSBEURT VAN EEN VIESSMANN CONDENSATIEKETEL Gesteld op 13-4-2021 om 23:24

    Reageer op deze vraag Misbruik melden

  • we hebben een viesmann warm water ketel (warm water werkt op mazout verwarming)
    via thermostaat kan de warmte ingesteld worden. Probleem is dat zelfs bij minimale opening van thermostaat
    het tapwater ENORM warm is . Ook de leidingen voelen dag en nacht heet aan. Kan het zijn dat thermostaat
    kapot is? Gesteld op 28-10-2020 om 07:06

    Reageer op deze vraag Misbruik melden
12

  • Ik ben de handleiding verloren van de Vitodens100w 100w kunt u die bezorgen aub Gesteld op 28-9-2020 om 17:17

    Reageer op deze vraag Misbruik melden

  • Ik heb een verouderd toestel en de kraantjes zitten te vast om open te draaien. Hoe kan ik dat wat losser krijgen. Dank U bijvoorbaat Met vriendelijke groeten Gesteld op 28-9-2020 om 15:21

    Reageer op deze vraag Misbruik melden

  • Als ik op de 100-W B1C (open therm) de WiFi thermostaat Honeywell Lyric aansluit volgens schema open therm dan blijft de verwarming constant warmte afgeven aan de radiatoren, zelfs als de thermostaat op uit staat. Hoe kan ik dit verhelpen? Gesteld op 17-6-2020 om 18:32

    Reageer op deze vraag Misbruik melden

  • Welke thermostaat is daar voor geschikt voor viesman vitodens 100w Gesteld op 20-3-2020 om 11:30

    Reageer op deze vraag Misbruik melden

  • Mijn verwarmingsketel slaat af staat tussen 0 en 1 bar max op display staat 34,5 wat kan ik doen , dank Gesteld op 4-3-2020 om 19:54

    Reageer op deze vraag Misbruik melden

  • Hoe steek ik water bij?? Ik vind niet hoe ik dat moet doen. Moet ik het onderste front neerklappen? Ik probeer dit maar durf niet te forceren Gesteld op 6-10-2017 om 11:16

    Reageer op deze vraag Misbruik melden

    • Aan het blauw knopje draaien onderaan. Regelen tot 1.6 bar, dat is meer als genoeg. Regelmatig (afhankelijk van grootte installatie) controleren. Bij mij is dat jaarlijks. Indien je een groot huis hebt is dat misschien meer. Geantwoord op 3-12-2017 om 12:29

      Waardeer dit antwoord (4) Misbruik melden
18

  • welk label heeft de Vitodens 100 ketel: CE of HR top Gesteld op 1-5-2017 om 14:25

    Reageer op deze vraag Misbruik melden

    • Elk in belgie verkocht apparaat zou een CE-label moeten hebben. (= conform de verorderingen van de europese commissie o.a. betreffende veiligheid, in elk land van de EU omgezet in wetgeving)
      Of het een HR-ketel is, RTFM Geantwoord op 3-12-2017 om 12:31

      Waardeer dit antwoord Misbruik melden

  • Ik heb een viesmann vitopend 100. De druk staat te laag - tussen 0 en 1. Ik wil de druk verhogen - tussen 2 en 3, maar weet niet welk kraantje ik moet opdraaien. Kanders iemand mij uitleggen geven wat ik moet doen? Gesteld op 10-1-2017 om 18:59

    Reageer op deze vraag Misbruik melden

  • Dag,de druk zetten tussen 2 en 3 bar is veel te hoog,voor een gaswandketel moet dit tussen 1,5 en 1,7 bar zijn.
    aan uw installatie zit er normaal een inox flexibel met langs beide kanten een kraantje,eerst de ene kraan open zetten en dan de andere voorzichtig open draaien en u zult de drukmeter zien verhogen,eenmaal tussen 1,5 en 1,7 biede kranen terug dicht draaien.
    mvg albert Geantwoord op 29-1-2020 om 16:31

    Waardeer dit antwoord (34) Misbruik melden

  • Ik heb geen 2 kraantjes om druk te verhogen, hoe moet dit dan. Geantwoord op 11-3-2022 om 14:39

    Waardeer dit antwoord (71) Misbruik melden

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