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2 . 1 1 Fuel connections
The boiler must be connected to the methane gas sup-
ply in compliance with the relevant standards.
Perform the following checks before making the con-
nection:
− Check that the boiler is compatible with the type
of gas supplied.
− Check that the gas supply pipes have been tho-
roughly cleaned.
− Check that the gas supply pipe is equal to or gre-
ater in diameter than the boiler's own gas inlet
fitting (3/4") and that its pressure drop is less
than or equal to the difference between the sup-
ply point and the boiler.
Fit a suitably sized filter in the gas supply pipe if the gas
supply contains any solid particles.
9
The gas feed line must be suitable for the flow rate
demanded by the burner. The gas feed system must
also be equipped with all the necessary safety and
control devices required by applicable legislation
and standards.
9
On completion of the installation, check that all
joints are sealed in compliance with the relevant
installation standards.
2 . 1 2 Flue gas outlet and comburent air intake
RESIDENCE COLONNA CONDENS SOLAR boilers are type C
sealed boilers, and must therefore have a sealed flue
gas vent pipe and comburent air intake pipe, both of
which must terminate outdoors. The boiler cannot fun-
ction without these pipes and connections. These pipes
form an integral part of the boiler even if they are sup-
plied in a separate kit. Coaxial and twin pipe terminals
are available.
GAS
300
31
INSTALLER
S
300
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