6.3 DISCHARGE OF FUMES FOR TYPE
“A” APPLIANCES
The appliances must be i nstalled on premises that are sui table for the discharge of the
combustion products and must co mply with the installation rules. Our appliances are
considered type
“A” gas appliances (see the Techni cal Data Tables) and are not for
connecting to a natural discharge duct for combustion products.
These appliances must di scharge through speci fic extractors, or similar devices,
connected to a properly working flue or discharged directly outside.
If this is not possi ble, an air suction device can be used connect ed directly to the outsi de,
with a capaci ty that must be no less than that required, see Table 1, plus the quantity of
fresh air that is necessar y for the well-being of the workers.
6.4 DISCHARGE OF FUMES FOR TYPE
“B” APPLIANCES
The appliances must be i nstalled on premises that are sui table for the discharge of
combustion products and must co mply with the installation rules.
Our appliances are consi dered (see the Technical Data Table) type B gas appliances, and
are for connecting to a natural discharge duct for combustion products such as an efficient
natural draught flue or discharged directly outside or they can be interlocked wi th a forced
discharge system, such as a hood f itted with a mechanical extractor.
If the combusti on products are di scharged by means of a for ced system:
-
the appliance gas suppl y must be dir ectly interlocked with the forced discharge system
and must cut off i f the system capacitydr ops below the values prescribed. It must be onl y
be possible to start the gas suppl y to the appliance by hand;
-
if the appliance is installed under a hood, the end of the appli ance
’s discharge pipe must
be at least 1.8 m from the surface on whi ch the appliance is standing, the discharge pipe
opening
’s cross section must be inside the base peri meter of the hood.
E: Electric servo-system
NOTE:
the mitre is supplied
NOTE:
the anti-draught devi ce
on request .
is supplied on request.
anti-draught
device
hood
ppa
mitre
a
1.8 m
1.8 m
FORCED DISCHARGE
NATURAL DISCHARGE
