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INSTALLER
USER
MAINTENANCE TECHNICIAN
1.18 DUCTING OF FLUES OR TECHNICAL SLOTS.
Ducting is an operation through which by inserting one or
more relevant pipes, one achieves a system for the evacua-
tion of the combustion products of a gas appliance, consist-
ing in the combination of an existing or new ducting pipe
with a chimney, ue or technical slot (also in new buildings)
(Fig. 27). Ducting requires ducts declared to be suitable for the
purpose by the manufacturer, following the installation and user
instructions, provided by the manufacturer and the requirements
of the regulations in force.
Immergas ducting system.
e Ø 60 rigid, Ø50 and Ø 80 exible and Ø80 rigid “Green Range”
ducting systems must only be used for domestic use and with Im-
mergas condensing boilers.
In any case, ducting operations must respect the provisions
contained in the standard and in current technical regulations;
in particular, the declaration of conformity must be compiled
at the end of work and on commissioning of the ducted system.
e instructions in the project or technical report must likewise
be followed, in cases provided for by the standard and current
technical regulations. To guarantee reliability and operation over
time of the ducting system, make sure:
-
it is used in average atmospheric and environmental conditions,
according to current regulations (absence of combustion prod-
ucts, dusts or gases that can alter the normal thermophysical or
chemical conditions; existence of temperatures coming within
the standard range of daily variation, etc.).
-
Installation and maintenance must be performed according to
the indications supplied by the manufacturer included with the
“green range” ducting system chosen and in compliance with
the regulations in force.
-
e maximum length specied by the manufacturer must be
respected; in this regard:
- e max. possible length of the Ø 60 exible ducting vertical
section is equal to 22 m. is length is obtained considering the
complete Ø 80 exhaust terminal, 1m of Ø 80 pipe in exhaust,
two 90° Ø 80 bends at boiler outlet.
- e max. possible length of the Ø 80 exible ducting vertical
section is equal to 18 m. is length is obtained considering the
Ø80 complete exhaust terminal, 1m of Ø 80 pipe in exhaust, two
90° Ø 80 bends at boiler outlet for connecting to the ducting
system and two direction changes of the exible hose inside
the chimney/technical slot.
- e max. possible length of the Ø 80 exible ducting vertical
section is equal to 30 m. is length is obtained considering the
complete Ø 80 exhaust terminal, 1m of Ø 80 pipe in exhaust,
two 90° Ø 80 bends at boiler outlet.
You can also install an additional Ø50 exible d
ucting system
the specications of which are found on the relevant instructions
che inside the kit.
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