Bronpi LONDRES Instructions D'installation, D'utilisation Et D'entretien page 50

4.2 COATING AND
INSTALLATION OF THE INSERT
When the insert is installed in a facing
or an old chimney it is essential the
space among the top and the sides of
the equipment and the fireproof material
of the hood (which block the base of the
chimney) will be constantly ventilated.
For this reason, it is necessary to keep an
fresh air entry on the bottom of the facing
and an exit on the top (hot air exit) by the
hood. The function will be improved due
to there is a natural convection circuit.
Every one of these openings must be free
and not blocked with a surface of 3 dm
at least (for example, grille 30x10 cm.).
4.3 CHIMNEY COWL
The chimney draft also depends on the
chimney cowl.
The chimney cowl should assure the
smoke discharge even during windy
days, having into account that it must
exceed the top of the roof (see drawing D4.5).
(1) Industrial chimney of
prefabricated elements
that allow a good smoke
extraction.
D4.5
The chimney cowl must comply with the following requirements:
• It must have the same interior section of the insert.
• It must have an usable exit section that is two times the one of the interior of the chimney.
• It must be constructed so that the rain, snow or any other object do not enter inside.
• It must be easily accessible in order to do servicing and cleaning tasks.
It the chimney cowl is metallic, due to its own design adapted to the diameter of the pipe, the smoke discharge is assured. There are different
models of metallic chimney cowl, fixed, anti-return, and rotary or extractor.
5. OUTSIDE AIR INTAKE
For the proper operation of the insert, it is essential that there is air enough for the combustion and re/oxygenation of the environment where it
is installed. In the case of houses built under the requirements of "energy efficiency" with a great degree of air tightness, it is possible that the
air intake is not guaranteed *the fitter must assure compliance with the Technical Building Code. This means that the air must be able to move
for the combustion through some openings connected to the exterior, even when doors and windows are closed. Moreover, it must comply
with the following requirements:
• It must be placed in so that it cannot be obstructed.
• It must be connected to the environment where the equipment is installed and it must be protected by a grate.
• The minimum area of the outlet should not be less than 100 cm2. Check regulations on this issue.
• When the air flow comes through openings that are connected to the exterior of adjacent environments, it is important to avoid air
intakes in connection with garages, kitchens, toilets, etc.
INSTALLATION, OPERATING AND SERVICING INSTRUCTIONS
Metallic channel
maximum inclination 45º
Decompression chamber
CAMARA DE DESCOMPRESION
50 cm
Grate
REJILLA
Rock wool insulation
AISLAMIENTO LANA DE ROCA
Protect the inner
PROTEGER LAS PARTES
walls of the wook
INTERNAS DE LA MADERA
2
Rock wool insulation
AISLAMIENTO LANA DE ROCA
Cold air entry
ENTRADA AIRE FRIO
Rock wool insulation
AISLAMIENTO LANA DE ROCA
CONDUCTO METALICO Space between the pipe and
ESPACIO ENTRE EN TUBO Y
MAXIMA INCLINACION 45º
the sealed channel EL CONDUCTO SELLADO
Exit grate of the convection air
REJILLA SALIDA AIRE CONVECCION
Space between the cladding and the insert
Cold air entry
ENTRADA AIRE FRIO
5 cm
(2) Traditional chimney. The
proper exit section must be,
at least, two times the interior
section of the chimney, the best
is 2.5 times
3) Chimney with interior cone
smoke deflector.
49
Grate
REJILLA
ESPACIO ENTRE EL REVESTIMENTO Y EL INSERT
5 mm
Cold air entry
ENTRADA AIRE FRIO
Wall
PARED
D4.4
INSERTS