Vaillant ecoTEC plus VUI Series Installation And Maintenance Instructions Manual page 37

9.12 Filling the condensate siphon
1. Never fill the condensate siphon via the air/flue con-
nector.
B
2. Remove the condensate adapter (1) from the lower
section of the siphon and from the condensate dis-
charge pipe.
0020308121_04 Installation and maintenance instructions
A
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3. Loosen the lower section of the siphon (3) by turning
the upper section of the siphon (1) by a quarter turn
and pull it downwards and out.
4. Remove the float (2).
5. Fill the lower section with water up to a filling level
10 mm below the condensate discharge (4).
6. Re-insert the float.
7. Push the lower section of the siphon as far as it will
go into the upper section of the siphon and rotate it
clockwise until you hear it click into place.
8. Reconnect the condensate adapter to the lower section
of the siphon and to the condensate discharge pipe.
9.13 Checking the gas settings
As part of the start-up, the following technical tests must be
carried out under the conditions on-site in order to enable the
product for operation.
–
Check that the product complies with the local gas group:
Correct product for the available gas group?
–
Recirculation check: Is the air/flue system ready to use?
–
Gas flow pressure check: Is the gas supply ready to use?
–
O content check: Is the combustion correct?
2
–
Gas flow rate check: Sufficient gas flow for the opera-
tion?
By checking the heat cell, the other functional areas of the
product are also automatically checked, e.g. the hydraulics,
electronics, etc.
9.13.1 Checking the factory-set gas setting
▶
Check the information about the gas type indicated on
the data plate and compare this with the gas type avail-
able at the installation site.
Result 1:
The product design is not compatible with the local gas
group.
▶
Do not start up the product.
▶
Contact customer service.
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