Viessmann VITODENS 200 Manuale utente
5862017 GB 8/2019 Dispose after installation.
Installation instructions
for contractors
VIESMANN
Changing the gas type
Replacing the gas restrictor
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.
Installation, commissioning, inspection,
maintenance and repairs must only be
carried out by an authorised, competent
person (heating engineer/installation
contractor).
Before working on the appliance/heat-
ing system, isolate it from the power
supply (e.g. by removing a separate
mains fuse or by means of a mains iso-
lator) and safeguard against unauthor-
ised reconnection.
When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
Repairing components that fulfil a
safety function can compromise the
safe operation of the system.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Application information
Gas restrictors for installation in the fol-
lowing boilers:
■ Vitodens 200, type WB2
■ Vitodens 222, type WS2
■ Vitodens 300, type WB3A
■ Vitodens 333, type WS3A
■ Vitocrossal 300, type CU3
■ Condutherm CE, type JCE110,
JCE240, JCE320
■ Condutherm CEW, type JCE245
2
1. Close the gas shut-off valve.
2. Disconnect the power supply and
safeguard against unauthorised
reconnection.
3. ■ Vitodens 200, type WB2, Condu-
therm CE, type JCE110, JCE240,
JCE320, Condutherm CEW, type
JCE245:
Unlock the catch behind the con-
trol unit flap. Remove the front
panel.
■ Vitodens 300, type WB3A:
Undo the locking screws on the
underside. Remove the front
panel.
■ Vitodens 222, type WS2,
Vitodens 333, type WS3A:
Remove the top front panel.
Unscrew the locking screw.
Remove the bottom front panel.
4. Unlock and remove the cover hood
or burner hood.
Replacing the gas restrictor
Vitodens and Condutherm
■ Vitodens 200, type WB2
■ Vitodens 222, type WS2
■ Vitodens 300, type WB3A
■ Vitodens 333, type WS3A
■ Condutherm CE, type JCE110,
JCE240, JCE320
■ Condutherm CEW, type JCE245
Opening the boiler
5862017
3
xxx
C
D
E
G
A
CB
F
01. Loosen 2 screws and remove gas
restrictor holder A from gas train
B.
02. Press gas restrictor C sideways
out of gas restrictor holder A.
03. Insert new O-ring D into the
groove in new gas restrictor C.
Danger
Escaping gas leads to a risk
of explosion.
Check the position of the O-
ring.
04. Insert new gas restrictor C for the
existing gas type into gas restrictor
holder A (click into place).
See the following table for marking
E on the gas restrictors.
05. Insert new O-ring F on the cam
on gas restrictor holder A.
Danger
Escaping gas leads to a risk
of explosion.
Check the position of the O-
ring.
Replacing the gas restrictor (cont.)
5862017
4
06. Insert gas restrictor holder A into
gas train B and secure with
screws.
Torque: 2.3 Nm
07. Take the label for the gas type from
the type designation provided. Affix
the label over the existing label G
on gas restrictor holder A.
08. Start the boiler and check for
leaks.
Installation and service
instructions
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
leaks.
09. Affix label "Set for ..." over the
"Gas type" label (next to the type
plate).
10. Reassemble the boiler.
Rated heating output range
(kW)
Gas restrictor marking E (gas type)
Natural gas E Natural gas
LL
LPG P
4.2 - 13.0 E 13/16 LL 13/16 P 13/16
6.6 - 26.3 E 24/26 LL 24/26 P 24/26
8.7 - 35.0 E 32/35 LL 32/35 P 32/35
12.2 - 49.0 E 44/49 LL 44/49 P 44/49
16.6 - 66.3 E 60/66 LL 60/66 P 60/66
Replacing the gas restrictor (cont.)
5862017
5
Vitocrossal 300, type CU3
C
D
E
G
A
CB
F
xxx
01. Loosen 2 screws and remove gas
restrictor holder A from gas train
B.
02. Press gas restrictor C sideways
out of gas restrictor holder A.
03. Insert new O-ring D into the
groove in new gas restrictor C.
Danger
Escaping gas leads to a risk
of explosion.
Check the position of the O-
ring.
Replacing the gas restrictor (cont.)
5862017
6
04. Insert new gas restrictor C for the
existing gas type into gas restrictor
holder A (click into place).
See the following table for marking
E on the gas restrictors.
05. Insert new O-ring F on the cam
on gas restrictor holder A.
Danger
Escaping gas leads to a risk
of explosion.
Check the position of the O-
ring.
06. Insert gas restrictor holder A into
gas train B and secure with
screws.
Torque: 2.3 Nm
07. Take the label for the gas type from
the type designation provided. Affix
the label over the existing label G
on gas restrictor holder A.
08. Start the boiler and check for
leaks.
Installation and service
instructions
Danger
Escaping gas leads to a risk
of explosion.
Check gas equipment for
leaks.
09. Affix label "Set for ..." over the
"Gas type" label (next to the type
plate).
10. Reassemble the boiler.
Rated heating output range (kW) Gas restrictor marking E (gas type)
Natural gas E Natural gas LL
9.0 - 27.0 E 24/26 LL 24/26
12.0 - 35.0 E 32/35 LL 32/35
16.0 - 49.0 E 44/49 LL 44/49
22.0 - 66.0 E 60/66 LL 60/66
Replacing the gas restrictor (cont.)
5862017
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5862017
8
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: [email protected]
Viessmann Werke GmbH & Co. KG
D-35107 Allendorf
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
5862017 Subject to technical modifications.
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