Viessmann Vitodens 100-W WB1B Series User manual

VIESMANN
Installation instructions
for contractors
Gas type conversion to G 31
for the Vitodens 100-W, type WB1B
5355 102 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
Installation and service instruc-
tions

1. Pull power cable from gas train A.
2. Remove union nut B.
3. Undo three screws Cand remove
gas train A.
Replacing the gas restrictor
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4. Remove gas restrictor D(if fitted)
from gas train Aand insert new
gas restrictor Dwith new gasket
Einto gas train A.
5. Fit the gas train Awith a new gas-
ket F.
Fixing screw torque C:3Nm.
Union nut torque B:22Nm.
6. From the labels supplied, select
the appropriate one in accordance
with the details on the type plate
(gas supply pressure).
Affix this label next to the type plate
on top of the boiler.
Converting gas type on the control unit
1. Turn ON/OFF switch ON.
2. Simultaneously turn rotary selec-
tors "tw"and"tr"totheircentral
position.
"SERV" appears on the display.
3. Turn rotary selector "rt"antic-
lockwise within 2 s.
"A"and the set value flash on the
display.
Replacing the gas restrictor (cont.)
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5355 102 GB

4. Adjust the control unit to natural
gas or LPG by turning the rotary
selector "tw".
The display shows:
&"0" for operation with natural gas
or
&"1" for operation with LPG.
5. Do not adjust the rotary selectors
for15s.Thesetoperatingmodeis
then saved and the control unit
returns to standard mode.
Adjusting the burner
1. Connect a flue gas analyser at
flue gas port Aon the boiler flue
connection.
2. 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.
Converting gas type on the control unit (cont.)
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5355 102 GB

3. Turn rotary selector "tr"clock-
wise for less than 2 s and then
anticlockwise back to the control
range on the right.
The display shows "SERV" and
the boiler water temperature
appears.
4. Adjust the upper output:
Turn rotary selector "tr"tothe
control range on the right.
The display shows 5 bars for
upper output.
5. Measure the CO2content for
upper output.
The CO2content must be between
10.0 and 12.0 %.
6. Adjust the lower output:
Turn rotary selector "tr"tothe
left control range.
The display shows 1 bar for lower
output.
7. Test the CO2content for lower out-
put.
The CO2content must be between
10.0 and 12.0 %.
8. &If the CO2content is within the
given range, continue with point
15.
&If the CO2content is not within
the given range, check the flue
gas/ventilation air system for
tightness.
Remedy any leaks.
Adjusting the burner (cont.)
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9. Test the CO2content for upper
and lower output again.
If the CO2content is still not
within the given range, adjust the
CO2content.
10. Adjusting the CO2content
Adjust the upper output.
11. With the adjusting screw B,set
the CO2content for upper output
to 10.8 %.
12. Adjust the lower output.
13. Remove cover Cfrom gas train.
With the adjusting screw below,
set the CO2content for lower out-
put to 10.5 %.
14. Refit cover C.
15. Shut the boiler down, remove flue
gas analyser and close flue gas
port A.
16. Return rotary selectors "tw"and
"rt" to their original positions.
17. Select the appropriate label from
"Gas type" labels supplied and
affix next to the type plate on the
top of the boiler.
Note
The delivered condition shown on
the type plate then no longer
applies.
18. Fit front panel and start the boiler.
Adjusting the burner (cont.)
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8
Printed on environmentally friendly, chlorine-free bleached paper
5355 102 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]