Viessmann Vitodens 100 Manual de servicio

Installation information

for heating engineers

Return connecting pipe replacement

for Vitodens100, typeWB1A

Safety instructions

Observe the following safety instructions:

Installation, initial start−up, inspection,

maintenance and repairs must be

carried out by a competent person

(heating engineer/installation

contractor).

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.

Close the main gas shut−off valve

and safeguard against unauthorised

reopening.

It is not permitted to carry out repairs

on parts that fulfil a safety function.

For replacements, use only original

spare parts from Viessmann or those

which are approved by Viessmann.

5341210GB7/2005 Dispose after installation!

Removing the burner

1. Shut down the heating system.

2. Close the gas shut−off valve and

safeguard against reopening.

3. Release the screw1on the front

panel 2and remove the front

panel.

4. Shut off the secondary side of the

boiler.

Note

The boiler is still filled with water.

5. Pivot control unit3downwards.

6. Remove screws and pull out cover

plate4.

5341210GB

2 3 4

Removing the burner (cont.)

7. Pull cables from the fan

motor5, gas valve6and

ignition unit7.

8. Remove the control hose8.

9. Release the gas connecting pipe

fitting9.

10. Release the four screwsqP and

remove the burner.

5341210GB

65 9qP

Removing the connecting pipe

1. Position a container underneath

the boiler water temperature

sensor1, remove the locking

spring2and remove the boiler

water temperature sensor1.

Collect drained heating water in

the container.

2. Remove the screw and the heating

water flow connecting pipe3

with sensors.

3. Release the pipe tie and remove

the condensate pipe4from the

heat exchanger.

4. Remove screws and the flue

outlet5.

5. Release the hexagon nuts and

remove the heat exchanger6

with the heating water return

connecting pipe.

Note

Water may escape from the heat

exchanger.

5341210GB

3 7

9 8

Removing the connecting pipe (cont.)

6. Release the screws and remove

the heating water return

connecting pipe7.

7. Remove the spring clip8and

the return temperature sensor9

from the old connecting pipe7

and fit with the new Oring to the

new connecting pipe7.

8. Connect the new heating water

return connecting pipe7to the

heat exchanger and secure it with

the screw.

9. Install the heat exchanger6in

the boiler and secure it with the

hexagon nuts.

10. Assemble the boiler in reverse

order.

Insert a new flat gasket on the

gas supply pipe.

11. Fill the boiler with water, flush

out and check for leaks.

5341210GB

Viessmann Werke GmbH&Co KG

D35107 Allendorf

Tel: +49 6452 700

Fax: +49 6452 702780

www.viessmann.de

Viessmann Limited

Hortonwood 30, Telford

Shropshire, TF1 7YP, GB

Tel: +44 1952 675000

Fax: +44 1952 675040

E−mail: info−[email protected]

Printed on environmentally friendly,

chlorine−free bleached paper

5341210GBSubject to technical modifications.

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