Immergas MAGIS Victrix, Instruction And Warning Book

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1.15 DUCTING OF FLUES OR
TECHNICAL SLOTS.
Ducting is an operation through which, via
the introduction of one or more relevant pipes,
one achieves a system for the evacuation of the
combustion products of a gas appliance, made
up from the coupling of an existing or new
ducting pipe with a chimney, flue or technical
slot (also in new buildings) (Fig. 1-25). Ducting
requires the use of 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 standards.
Immergas ducting system. The Ø60 rigid and
Ø80 flexible “Green Range” ducting systems must
only be used for domestic use and with Immergas
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. The instructions in the project
or technical report must likewise be followed, in
cases provided for by the standard and current
technical regulations. The system or components
of the system have a technical life complying with
current standards, provided that:
- It is used in average atmospheric and
environmental conditions, according to current
regulations (absence of fumes, 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 and in
compliance with the provisions in force.
- The max. possible length of the Ø 60 flexible
ducting vertical section is equal to 22 m. This
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.
- The max. possible length of the Ø 80 flexible
ducting vertical section is equal to 30 m. This
length is obtained considering the 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 flexible tube inside
the flue/technical slot.
- The maximum possible length of the Ø 80 rigid
ducting vertical section is equal to 30 m. This
length is obtained considering the complete
Ø 80 exhaust terminal, 1m of Ø 80 pipe in
exhaust, two 90° Ø 80 bends on the boiler
outlet.
1.16 CONFIGURATION TYPE B
23
,
OPEN CHAMBER AND FORCED
DRAUGHT FOR INDOORS.
The appliance can be installed inside buildings in
B
23
mode; in this eventuality, all technical rules
and national and local regulations in force, must
be complied with.
- Type B open chamber boilers must not be
installed in places where commercial, artisan
or industrial activities take place, which use
products that may develop volatile vapours
or substances (e.g. acid vapours, glues, paints,
solvents, combustibles, etc.), as well as dusts
(e.g. dust deriving from the working of wood,
coal fines, cement, etc.), which may be harmful
for the components of the appliance and
jeopardise operation.
- In type B
23
configuration, the boilers must not
be installed in bedrooms, bathrooms or in
studio flats.
- The installation of appliances in B
23
configuration is only recommended outdoors
(in a partially protected place) or in places that
are not lived in and which are permanently
ventilated.
To install them one must use the coverage kit
whose installation is referred to in paragraph
1.10.
1.17 FLUE EXHAUST TO FLUE/CHIMNEY.
Flue exhaust does not necessarily have to be
connected to a branched type traditional flue.
The flue exhaust, for boiler clots installed in C
configuration, can be connected to a special LAS
type multiple flue. For B
23
configurations, exhaust
is only allowed into individual flue or directly into
the external atmosphere via a relevant terminal. The
multiple flues and the combined flues must also
only be connected to type C appliances of the same
type (condensing), having nominal heat inputs that
do not differ by more than 30% less with respect to
the maximum that can be attached and powered
by the same fuel. The thermo-fluid dynamic
features (flue flow rate, % of carbon dioxide, %
humidity etc..) of the appliances attached to the
same multiple flues or combined flues, must not
differ by more than 10% with respect to the average
boiler attached. Multiple and combined flues must
be specially designed according to the calculation
method and requirements of the standards in force,
by professionally qualified technical staff. Chimney
or flue sections for connection of the exhaust pipe
must comply with requisites of technical standards
in force.