Viessmann Vitodens 100-W Guía rápida
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.: 41-819-26 - 29, 47-819-20 - 22
For applicability, see the last page
VITODENS 100-W
5609 059 GB 5/2013 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................................................................................... 8
Installation sequence
Fitting the boiler and making connections............................................................ 12
Opening the control unit casing............................................................................ 18
Electrical connections........................................................................................... 19
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 25
Further details regarding the individual steps....................................................... 26
Troubleshooting
Function sequence and possible faults................................................................ 46
Fault messages on the display............................................................................. 47
Repairs................................................................................................................. 51
Gas type conversion
Converting from LPG to natural gas .................................................................... 61
Control unit
Functions and operating conditions in weather-compensated mode................... 63
Designs
Connection and wiring diagram............................................................................ 64
Parts lists
Ordering parts...................................................................................................... 66
Overview of the assemblies................................................................................. 67
Sheet metal parts assembly................................................................................. 68
Heat cell assembly............................................................................................... 69
Burner assembly.................................................................................................. 70
Hydraulic assembly.............................................................................................. 72
System boiler hydraulic assembly........................................................................ 74
Combi hydraulic assembly................................................................................... 76
Control unit assembly........................................................................................... 77
Miscellaneous assembly...................................................................................... 79
Specification....................................................................................................... 80
Index
Index
5609 059 GB
5
Certificates
Declaration of conformity...................................................................................... 82
Keyword index.................................................................................................... 83
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.
Gas-Council-Nr.:
■ 19 kW system: 41-819-26
■ 26 kW system: 41-819-27
■ 30 kW system: 41-819-28
■ 35 kW system: 41-819-29
■ 26 kW combi: 47-819-20
■ 30 kW combi: 47-819-21
■ 35 kW combi: 47-819-22
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 must arrange individual
approval on his own initiative and in
accordance with the law of the country in
question.
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 11.
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).
Product information
Product information
5609 059 GB
7
Accessory connection
Cylinder temperature sensor, outside
temperature sensor and time switch are
connected to the control unit with low
voltage.
Product information
Product information (cont.)
5609 059 GB
Installation
8
Preparing for the boiler installation
Dimensions and connections
34
5
250
68
400
700
58 58
123123
B
AC E
F
D
156
350
125
860
150
AHeating flow
BGas condensing boiler:
Cylinder flow
Gas condensing combi boiler:
DHW
CGas connection
DGas condensing boiler:
Cylinder return
Gas condensing combi boiler:
Cold water
EHeating return
FCondensate drain/safety valve
drain: Plastic hose 7 22 mm
Preparing for installation
Preparing for installation
5609 059 GB
9
Minimum clearances
Maintain a clearance of 700 mm in front
of the Vitodens for maintenance purpo-
ses. Maintenance clearances to the l.h.
or r.h. side of the Vitodens are not
required.
Preparing for installation
Preparing for installation (cont.)
5609 059 GB
Installation
10
Fitting the wall mounting bracket
250
A
Ø10
145
AVitodens installation template
Preparing for installation
Preparing for installation (cont.)
5609 059 GB
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41
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