Viessmann VITODENS 050-W Manuale utente

5685058 GB 8/2017 Dispose after installation.

Installation instructions

for contractors

VIESMANN

Converting the gas type from natural gas to LPG

for Vitodens 050-W

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.

!Please note

This symbol warns against the

risk of material losses and envi-

ronmental pollution.

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/heat-

ing 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 safeguard

against unauthorised reopening.

Repairing components which fulfil a

safety function can compromise the

safe operation of your heating system.

For replacements, use only original

spare parts supplied or approved by

Viessmann.

Opening the Vitodens

Installation and service instruc-

tions

Replacing the gas train

Note

The Vitodens may be equipped with different gas train versions.

■Pressure die cast casing A

■Bolted casing B

1. Pull cable from gas train.

2. Undo union nut H and remove old

gas gasket.

3. Undo 2 screws C and remove gas

train.

4. For boilers equipped with gas train

A, insert new gasket D with cor-

rect new gas restrictor F for the

relevant gas type from the conver-

sion kit.

!Please note

Ensure the gas restrictor is

fitted correctly.

If equipped with gas train B (bol-

ted casing), insert new gasket D

with gas restrictor E from the con-

version kit for the relevant gas type.

Converting the gas type to LPG P (G31)

5685058

5. Mount gas train with new gas gas-

ket G.

Torque for fixing screws C: 6 Nm

Torque for union nut B: 30 Nm

6. Start the boiler.

7. Check all gas connections for tight-

ness.

Danger

Escaping gas leads to a risk

of explosion.

Check all gas equipment for

tightness.

!Please note

The use of leak detection

spray can result in faulty

operation.

Leak detection spray must

not come into contact with

electrical contacts or seal

the diaphragm opening on

the gas valve.

Changing the gas type at the control unit

1. Turn on the ON/OFF switch.

2. Press MODE and simultaneously

and hold for 3 s.

"SERV" appears on the display

and "I" flashes.

3. Use / to select "5" and confirm

with OK.

"0" flashes on the display.

4. Use / to select "1" and confirm

with OK.

The burner has been converted to

operation with LPG.

5. Press MODE and simultaneously

and hold for 3 s.

Service mode is terminated. Serv-

ice mode also terminates automati-

cally after 30 min.

6. Turn the ON/OFF switch off and on

again.

The selected gas type is now ena-

bled.

Converting the gas type to LPG P (G31) (cont.)

5685058

1. Connect a flue gas analyser at flue

gas port A on the boiler flue con-

nection.

2. Start the boiler.

3. To check the CO2 content the

burner output can be adjusted man-

ually.

Set the burner output at the boiler

control unit:

1. Press MODE.

2. / repeatedly until "SERV"

appears.

3. Press OK to confirm.

"OFF" appears on the display.

4. Use / to adjust the burner out-

put:

Display

shows

Burner out-

put

_ 20 20 %

_ _ 40 40 %

_ _ _ 60 60 %

_ _ _ _ 80 80 %

_ _ _ _ _ 100 100 %

5. Confirm your settings with OK.

Checking the CO2 content

5685058

4. Set the higher heating output

(100 %) and check the CO2 con-

tent.

The CO2 content must be within the

following range for the respective

gas type. See table.

Gas type CO2 content

in %

E (G20) 7.5 – 10.5

P (G31) 10.0 – 12.0

5. Set the lower heating output (20 %)

and check the CO2 content.

The CO2 content must be between

0.3 and 0.9 % below the value of

the upper heating output (100 %).

6. ■ If the CO2 content is within the

range indicated, continue with

step 6.

■ If the CO2 content lies outside

the given range, check the bal-

anced flue system for tightness.

Remedy any leaks.

Replace gas train if required.

7. Re-check the CO2 content for the

higher and lower heating output.

8. Use / to set the burner output to

"OFF".

9. Press MODE, "SERV" is no longer

shown.

Note

The function also terminates auto-

matically after 30 min.

Checking the CO2 content (cont.)

5685058

1. Shut down the boiler, remove the

flue gas analyser and close flue

gas test port A.

2. Select the appropriate label from

the "Gas type" labels supplied and

affix it next to the type plate on the

top of the boiler.

Note

The delivered condition shown on

the type plate then no longer

applies.

3. Mount the front panel and start the

boiler.

Starting the boiler

5685058

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

5685058 Subject to technical modifications.

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