Viessmann Vitodens 100-W WB1B Series User manual

VIESMANN
Installation instructions
for contractors
Radial fan replacement
for the Vitodens 100-W, type WB1B
5355 081 GB 2/2008 Dispose after installation.
Safety instructions
Please follow these safety instructions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
Note
Details identified by the word "Note"
contain additional information.
Installation, initial start-up, inspection,
maintenance and repairs must only be
carried out by a competent person
(heating engineer/installation contrac-
tor).
Before working on the equipment/
heating system, isolate the power
supply (e.g. by removing a separate
mains fuse or by means of a mains
isolator) and safeguard against
unauthorised reconnection.
When using gas as fuel, also close
the main gas shut-off valve and safe-
guard against unauthorised reopen-
ing.
Repairing components which fulfil a
safety function can compromise the
safe operation of your heating sys-
tem.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Opening the Vitodens and removing the burner
Installation and service instruc-
tions

1. Undo two screws and remove fan
Awith gas valve Band venturi
nozzle C.
2. Undo two screws and remove gas
valve Btogether with venturi noz-
zle from fan A.
3. Fit new fan Awith new gasket C
to gas valve B.
Fixing screw torque: 3 Nm.
4. Fit new fan Awith gas valve B
and new gasket Dto burner.
Fixing screw torque: 4 Nm.
5. Install the burner.
Note
Insert new gaskets on all gas con-
nections.
Replacing the radial fan
2
5355 081 GB

6. Start up the boiler and check for
tightness.
Installation and service
instructions
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
tightness.
Replacing the radial fan (cont.)
3
5355 081 GB

4
Printed on environmentally friendly, chlorine-free bleached paper
5355 081 GB Subject to technical modifications.
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: [phone]
Fax: [phone]
www.viessmann.com
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]