Viessmann Vitodens 100-W Guide rapide
Installation and service
instructions
for contractors
VIESMANN
Vitodens 100-W
Type WB1B, 7.9 to 26.0 kW
Wall mounted gas fired condensing boiler
Natural gas and LPG version
Gas council no.: 41-819-21; 41-819-22; 41-819-23; 41-819-24
VITODENS 100-W
5368 662 GB 2/2009 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
5368 662 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.)
5368 662 GB
4
Installation instructions
Preparing for installation
Product information.............................................................................................. 5
Preparing for installation....................................................................................... 5
Installation sequence
Installing the boiler and making all connections................................................... 8
Opening the control unit casing............................................................................ 11
Electrical connections........................................................................................... 12
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 15
Further details regarding the individual steps....................................................... 16
Troubleshooting
Function sequence and possible faults................................................................ 26
Fault messages on the display............................................................................. 27
Repairs................................................................................................................. 31
Gas type conversion
Converting from LPG to natural gas..................................................................... 37
Control unit
Functions and operating conditions in weather-compensated mode................... 39
Designs
Connection and wiring diagram............................................................................ 40
Parts lists............................................................................................................ 42
Specification....................................................................................................... 45
Certificates
Declaration of conformity...................................................................................... 46
Keyword index.................................................................................................... 47
Index
Index
5368 662 GB
5
Vitodens 100-W, WB1B
Set up for operation with natural gas.
Preparing for installation
Preparing the boiler installation
Dimensions and connections
119
600 43
26
151
285
93
47
25
375
123
A B
C
D
AHeating flow
BHeating return
CCondensate drain: Plastic pipe 7
22 mm
Preparing for installation
Product information
5368 662 GB
Installation
6
DGas connection, 1/2" male iron
Fitting the wall retainer
25
150
Ø10
≥250
A
B
AVitodens installation template BOpening for the balanced flue
Preparing for installation
Preparing for installation (cont.)
5368 662 GB
7
1. Position the installation template pro-
vided on the wall.
2. Mark out the rawl plug holes.
3. Drill 710 mm holes and insert the
rawl plugs provided.
4. Secure wall retainer with screws pro-
vided.
Preparing the connections
1. Prepare the water connections. Flush
the heating system.
2. Prepare gas connection.
3. Prepare the electrical connections.
Observe valid IEEE standards.
■ A 1.5 m long power cable is fitted
as standard.
■ Accessory cables:
NYM-O two-core min. 0.5 mm2.
Preparing for installation
Preparing for installation (cont.)
5368 662 GB
Installation
8
Removing the front panel and mounting the boiler
3.
2.
1.
2x
1. Release screws at the bottom of the
boiler; do not remove completely.
2. Remove front panel.
3. Hook the boiler into the wall
retainer.
Installation sequence
Installing the boiler and making all connections
5368 662 GB
9
Installing connections on the water side
A B
AHeating flow BHeating return
Gas connection
A
1. Connect gas shut-off valve to con-
nection A.
2. Carry out a tightness test.
!Please note
Excessive test pressure may
damage the boiler and gas
valve.
Max. test pressure 150 mbar.
Where higher pressure is
required for tightness tests,
separate the boiler and gas
valves from the gas supply
pipe (undo the fitting).
3. Vent the gas line.
Installation sequence
Installing the boiler and making all connections (cont.)
5368 662 GB
Installation
10
Condensate connection
A
Connect condensate drain A with a
slope and pipe vent to the public sewer.
Observe the local waste water regula-
tions.
Note
Fill the siphon with water before com-
missioning.
Filling the siphon with water
Fill the flue gas connection with a mini-
mum of 0.3 l of water.
!Please note
During commissioning, flue gas
may be emitted from the conden-
sate drain.
Fill the siphon with water imme-
diately prior to commissioning.
Installation sequence
Installing the boiler and making all connections (cont.)
5368 662 GB
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41
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