Technical data

Commissioning
44 Installation and maintenance instructions ecoTEC plus 0020116700_06
10
1
10.4 Filling the condensate siphon
> Remove the lower part (1) of the condensate siphon by
turning the bayonet fitting anti-clockwise.
> Fill the lower section with water until about 10mm below
the upper edge.
> Re-attach the lower section to the condensate siphon.
10.11 Checking the gas setting
b
Caution.
Risk of damage caused by a not permis-
sible setting.
Modifications to the gas pressure regulator
on the gas valve can destroy the gas valve
and cause operating faults on the boiler.
> Never modify the factory setting for the
gas pressure regulator of the gas valve.
1
10.5 Gas pressure regulator
Gas valves with gas pressure regulators (1) are not installed
in all boilers. There are also versions without gas pressure
regulators.
10.11.1 Factory setting
b
Caution!
An incorrect gas group setting can cause
operating faults or a reduction in the
working life of the boiler.
If the boiler version does not correspond to
the local gas group, there will be malfunc-
tions or you have to change components of
the boiler ahead of schedule, e. g. do not
use a LPG boiler on natural gas.
> Before starting up the boiler compare
the details of the gas group specified on
the identification plate with the gas
group supplied at the installation site.
If the boiler version corresponds to the local gas
family:
> Proceed as described below.
If the boiler version does not correspond to the
local gas family:
> Call Vaillant Service Solutions (0870 6060 777); Gas
conversions must only be carried out by Vaillant Service
Solutions.
> You must not start up the boiler yourself.
i
If a gas conversion to liquid gas has been carried
out by Vaillant Service Solutions, the smallest
possible partial load is higher than is shown in
the display. The current values can be found in
the technical data (¬section17).
The combustion of this boiler has been checked, adjusted
and preset at the factory for operation on the gas group
defined on the identification plate. No measurement of the
combustion is necessary to set up the boiler.
Do not adjust the gas valve.
> Ensure
– that the boiler has been installed in accordance with
these instructions,
– the integrity of the flue system and the flue seals, as
described in the ¬flue installation instructions
enclosed with this boiler, and as described below,
– a visual check is carried out on the boiler combustion
circuit and the relevant seals,
– that any defects have been corrected at this stage.
To further validate the integrity of the flue system and con-
firm correct operation of the boiler it is possible to conduct