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

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

xxx

01. Loosen 2 screws and remove gas

restrictor holder A from gas train

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

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

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

Vitocrossal 300, type CU3

xxx

01. Loosen 2 screws and remove gas

restrictor holder A from gas train

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

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

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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