27
Installation and maintenance instructions ecoTEC 0020029173_01
h
Note!
If the installation kit is not present, do not
operate the boiler. Contact Vaillant customer
service.
d
Danger!
If the boiler is operated with an empty
condensate siphon, there is danger of poisoning
through escaping flue gases. Therefore it is
mandatory to fill the siphon in accordance with
the accompanying description before start-up.
6.3
Checking the gas setting
a
Caution!
Malfunctions or reduction in working life of the
boiler!
If the boiler version does not correspond to the
local gas family, there will be malfunctions 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 de-
tails of the type of gas specified on the iden-
tification plate with the type of gas 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:
• Perform the gas conversion in accordance with the
gas conversion kit 0020010641.
• Adjust the gas setting as described below
(see sections 6.3.1 to 6.3.3).
The combustion of this boiler has been checked,
adjusted and preset at the factory for operation on the
type of gas defined on the identification plate. No
measurement of the combustion is necessary to set up
the boiler.
• Do not adjust the multifunctional automatic 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
confirm correct operation of the boiler it is possible to
conduct flue gas and air measurements on this
boiler - for details see section 6.3.1.
Proceed to put the boiler into operation as follows:
• Check the maximum gas flow rate as detailed in
section 6.3.2.
• Check the gas inlet working pressure as detailed in
section 6.3.3.
• Note that you must re-measure the gas flow rate or
the gas inlet working pressure, if changes were
required to correct any issues found.
6.3.1
Checking for tightness of the flue gas
installation and flue gas recirculation
• Check the integrity off the flue gas installation
according to TB 200.
• Should the flue gas installation be longer than 2 m we
strongly recommend to check the system for flue gas
recirculation as described below.
1
2
Fig. 6.4 Flue gas measure points
Legend:
1 Flue gas measure point
2 Air measure point
• For checking the system for recirculation use the air
measure point
(2)
.
• Use the flue gas analyser.
• If you detect any CO or CO2 in the fresh air, search
for the flue gas leakage or recirculation.
• Correct the defects.
• Check again as described before, if there is any CO or
CO
2
in the fresh air.
• If you cannot correct the defects you must not start
up the boiler.
Start-up 6
