
Installation and maintenance instructions ecoTEC 0020029173_01
52
10.4
Replacing the heat exchanger
d
Danger!
Before replacing the component, observe the
safety information in Chap. 10.1.
• Observe the installation manual that accompanies the
spare part.
If you have any questions, please contact Vaillant
Service Solutions (see Chap. 11)
10.5
Replacing electronics and display
d
Danger!
Before replacing the component, observe the
safety information in Chap. 10.1.
e
Danger!
Risk of fatal electric shock through contact
with live connections!
Disconnect the boiler from the power mains by
pulling out the mains plug or deenergising the
boiler using an isolating device with a contact
opening of at least 3 mm (e.g. fuses or power
switches). Only after this procedure you may
continue the installation.
• Comply with the assembly and installation manuals
provided with the spare parts.
Replacing the display or electronics
If you are replacing only one of the two components,
the parameter adjustment functions automatically. By
switching on the boiler, the new component takes over
the previously set parameters from the unreplaced
components.
Simultaneously replacing display and electronics
If both components are replaced at the same time (in
event of spare part installation) the boiler enters error
mode when it is started up and displays the fault code
"F.70".
a
Caution!
Risk of damage!
If you replace both components at the same
time, it is essential to check whether the
correct replacement display for this equipment
variant is available. You cannot use any other
replacement displays!
• Enter the number of the boiler variant under diagnosis
point "d.93" at the second diagnosis level in
accordance with Table 10.1 (see Chap. 9.1.2).
Boiler
Number of boiler variant (DSN)
ecoTEC VU GB 656/4-5 H
47
Table 10.1 Boiler variant numbers
The electronics is now set to the boiler type and the
parameters of all adjustable diagnosis points correspond
to the factory settings. You can now make the specific
settings for the system.
11 Vaillant
Service
To ensure efficient and reliable operation of your boiler
it is recommended that regular servicing is carried out
by your service provider.
Vaillant Applied System Sales
Vaillant Ltd., Unit D1 Lowfields Business Park, Elland.
West Yorkshire. HX5 9DG
Training
Telephone
01634 292370
Fax
01634 292354
Commercial Service
Telephone
0870 850 3072
Mon - Fri
8.30 - 17.30
Fax
01773 525 946
12 Recycling
and
disposal
Both the gas fired boiler and its packaging consist
mainly of recyclable raw materials.
12.1 Boiler
The boiler and the accessories do not belong to
domestic waste. Make sure the old boiler and any
existing accessories are disposed of properly.
12.2 Packaging
The transport packaging is disposed by the skilled trade
company that installed the boiler.
h
Note!
Please observe the applicable national legal
regulations.
10 Replacing components
11 Vaillant Service
12 Recycling and disposal
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