Filling The Condensate Siphon; Checking The Gas Ratio Setting - Vaillant ECOTEC PLUS VU 80 Installation And Maintenance Instructions Manual

9.5

Filling the condensate siphon

Danger!
a
Risk of poisoning due to escaping flue
gas.
An empty or insufficiently filled condensate
siphon may allow flue gas to escape into
the room air.
> Fill the condensate siphon with water
before starting up the boiler.
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9.2 Filling the condensate siphon
> Remove the siphon lower section (2) by unscrewing it
from the condensate siphon (1).
> Fill the siphon lower section with water up to about
10 mm below the upper edge.
> Secure the siphon lower section correctly to the conden-
sate siphon again.
ecoTEC plus installation and maintenance instructions 0020134823_01
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Establishing operational readiness
9.6

Checking the gas ratio setting

9.6.1 Default setting
Caution.
b
An incorrect gas-family setting can
cause operating faults or a reduction in
the working life of the boiler!
If the unit design does not correspond to
the locally available gas family, you will
experience error functions or you will have
to replace boiler components prematurely ;
for example, a liquid-gas boiler must not be
operated with natural gas.
> Before starting up the boiler, compare
the details concerning the set type of gas
on the identification plate with the type
of gas supply at the installation site.
If the unit should be operated with liquid gas (propane), do
not start up the unit. Instead, contact Vaillant Customer
Service. They will convert the unit and then start it up.
The same applies for the conversion from liquid gas (pro-
pane) to natural gas. This conversion must also only be car-
ried out by Vaillant Customer Service.
The combustion of the ecoTEC plus has been factory tested
and is preset for operation with the gas group indicated on
the identification plate (¬ table 13.1). In some areas these
settings may need to be adjusted at the installation site.
i
It is not necessary to check the gas volume dur-
ing initial start-up. The adjustment takes place
based on the CO
gas ratio setting must be defined in the attached
commissioning checklist.
9.6.2 Checking the leak-tightness of the flue gas
system and for flue gas recirculation
> Check that the flue gas system is intact, in accordance
with British Gas TB 200.
> If the flue gas system is longer than 2 m, we urgently
recommend that you test the system for flue gas recircu-
lation as described below.
component in the flue gas. The
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