Bronpi hydro series Installation, Operating And Servicing Instruction page 33

WARNING:
The manufacturer declines any responsibility for the malfunction of an installation not subject to the requirements of these
instructions or the use of additional products not appropriate.
5.3 CHIMNEY
The chimney is of basic importance in the proper functioning of the thermo-stove or insert and primarily has two functions:
• Evacuate the smoke and the gas safely out of the house.
• Provide sufficient draught to the thermo-stove or insert.
The draught also affects the intensity of the combustion and the heating performance of your equipment. A good draught of the chimney
needs a reduced regulation of the air for the combustion, while a lack of draught needs a good regulation of the air for the combustion.
Therefore, it is essential that it is made perfectly and that it is subjected to maintenance operations in order to keep it in good conditions.
(Many of the claims due to malfunctioning reasons refer exclusively to a bad draught).
It is necessary to comply with the following requirements for the proper operation of the thermo-stove or insert hydro:
• The interior section must be preferably circular.
• It must be thermally insulated along its entire length in order to prevent condensation (the smoke is liquefied by heat shock) and even
more if the installation is outside the house.
• If we use metallic pipe for the installation outside the house, it is compulsory to use thermal insulated pipe. It consist of two concentric
pipes and, between them, there is a thermal insulator. Moreover, we will avoid condensation problems.
• It should not have bottlenecks (enlargements or reductions) and it must be vertical with deviations not higher that 45º.
• If it has been used previously, it must be clean.
• Respect the technical data of the instructions manual.
The optimum draught varies between 10 and 14 (Pascal). The measuring must be always made with the equipment hot (nominal heating
power). A lower value causes a bad combustion causing carbonic deposits and excessive smoke generation, having leaks and, even worse,
an increase of the temperature that could damage the structural components of the thermo-stove or insert. When pressure exceeds 15 Pa it
will be necessary reduce it by installing an additional draught regulator.
To check if combustion is correct, control if the smoke out the chimney is transparent. If smoke is white means the equipment is not properly
regulated or the pellet is being used has a too high humidity. Otherwise, the smoke is grey or black means the combustion is not completed
(it is necessary a bigger amount of secondary air).
The connection of the thermo-stove or insert must be done with rigid aluminized steel pipes or stainless steel pipes. It is forbidden the use
of flexible metallic pipes or fibre cement pipes because they damage the safety of the connection because they are subject to jerks
and breaks, which causes smoke looses.
Materials that are prohibited for the chimney and, therefore, damage the proper functioning of the equipment are: fibre cement, galvanized
steel and rough and porous interior surfaces. A example of solution is described below:
D11
smoke when it comes out.
The lack of sealing of the connection may cause the malfunction of the equipment.
The internal diameter of the connection pipe should correspond to the external diameter of the chimney of the equipment.
In drawing D13 you can see the requirements for a correct installation.
INSTALLATION, OPERATING AND SERVICING INSTRUCTIONS
Stainless steel AISI 316 chimney with double
insulated chamber and material resistant
up to 400°C. Efficiency 100% optimum (see
drawing D10).
All thermo-stoves or inserts that send
smoke to the exterior should have their own
chimney. Never use the same chimney for
several equipments at the same time (see
drawing D11).
It is not recommended the fit in horizontals
sections. The horizontal section will not be
longer than 1 meters.
It must be installed a "T" with hermetic cover
at the thermo-stove or insert exit smoke that allows the regular inspection
or the heavy dust download.
There will not be more than 4 changes of direction, including the register
"T" for the cleaning.
In drawing D12 are represented the basic requirements for the chimney
installation of a thermo-stove or insert:
The flue must be away from flammable or combustible materials through
an appropriate insulation or an air chamber. Inside the pipes, it is
forbidden the use of air abduction channels. It is also prohibited to do
mobile or fixed openings for connecting other different equipments.
The smoke duct must be staunchness set to the equipment and it can
have a maximum inclination of 45° whereby excessive deposits of
condensation produced in the initial stages of ignition and / or excessive
soot formation is avoided. Moreover, it avoids the slowing down of the
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D10
HYDRO SERIES RADIOFREQUENCY