Gas Supply; Flue Pipe; Standard 100 Mm Flue System; Optional 125 Mm Flue System - Vaillant ecoTEC plus 612 Instructions For Installation And Servicing

3.5

Gas supply

The gas supplier should ensure the availability of an
adequate supply of gas. A gas meter may only be con-
nected to the service pipe by the supplier of gas or their
contractor. An existing meter should be checked to
ensure that it is capable of passing the rate of gas sup-
ply required.
Installation pipes should be fitted in accordance with
BS 6891. In IE the current edition of IS 813. Pipework
from the meter to the boiler must be of an adequate
size. Do not use pipes of a smaller size than the boiler
gas connection (15 mm). The complete installation must
be checked for leaks and purged as described in
BS 6891.
3.6

Flue pipe

Danger!
Vaillant appliances are certified only for use
with genuine Vaillant flue pipes. Only use genu-
ine Vaillant flue pipes. Malfunctions can occur if
you use other accessories. These may result in
damage and injury. You will find a list of genuine
flue pipes in the Vaillant installation manual for
flue pipes.
The CE mark is valid only if the appliance is
operated with Vaillant flue pipes.

3.6.1 Standard 100 mm flue system

Fig. 3.4 Art. No. 303 933
A standard 100 mm flue system (Art. No. 303 933) is
available. Refer to flue system installation instructions
for full details.
Flue extensions are available to extend this length up to
8 m. Both 90° bends and 45° elbows are also available
to increase siting flexibility.
Instructions for installation and servicing ecoTEC
Supplied By www.heating spares.co Tel. 0161 620 6677
General requirements 3
Fig. 3.5 Art. No. 303 900

3.6.2 Optional 125 mm flue system

A concentric flue system of 125 mm outside diameter is
available and can be used to achieve flue lengths up to
25 m.
A vertical flue system is also available. Refer to flue sys-
tem installation instructions for full details.
Fig. 3.6 Art. No. 303 209
Fig. 3.7 Art. No. 303 200
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