Solarbayer BioX 15, Руководство по эксплуатации

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Installation
34
© Solarbayer GmbH [210205]

For the correct boiler to function properly all
doors and lids must close tightly and all doors
and openings must be checked for leaks.
3.8 Chimney
The Solarbayer BioX wood log boiler is a
technically high-quality product, the advantages of
which can only be achieved by careful coordination
of all factors necessary for good combustion. Boiler
and chimney form a functional unit and must fit
together to ensure trouble-free and economical
operation. It is therefore essential to achieve the
right "delivery pressure" for each type of boiler.
If the delivery pressure is too low, this prevents the
flue gases from being transported properly and can
lead to

bad burning behaviour

smoke outlet at the boiler during refilling

smoke outlet at the draft regulator

smoke outlet with leaking exhaust gas pipes

overpressure in the chimney with danger of
explosion
If the delivery pressure is too high, the combustion
is faster and the fuel is supplied:

expansion of the flame, possibly into the
chimney

high wear of the combustion chamber parts

high flow speed, resulting in increased
emission of dust and/or smoke

hollow firing, resulting in a rapid drop in power
Reaching the correct delivery pressure
depends on three essential factors:

characteristics of the chimney

vorschriftsmäßiger Anschluss des Kessels an
den Kamin mit Zugregler
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Correct connection of the boiler to the
chimney with draft regulator
3.8.1 Characteristics of the
chimney
The requirements for a small draft drop in the
chimney are:

a good thermal isolation - to avoid rapid
cooling of the exhaust gases

a flat inner surface - to avoid turbulences

the tightness of the chimney - to prevent the
entry of false air (the cooling of the flue gases
is accelerated by the entering false air)

The chimney must be resistant to wetness and
calculated or dimensioned in accordance with
EN13384.
These requirements are met by fireplaces of type I
and II according to EN13384, part 2.
3.8.2 Correct connection of
the boiler to the chimney
The exhaust pipe must be connected to the
chimney continuously rising and thermally isolated.
It is recommended to install the draft regulator with
explosion flap in the chimney cheek (between
chimney pipe connection and cleaning door). If the
draft regulator is installed in the exhaust pipe
connection, there may be unwanted dust leakage.
Each exhaust pipe bend increases the resistance
and can cause flow noises which are boosted via
the chimney. This can lead to noise pollution. For
this reason, exhaust pipe bends should be avoided
as far as possible.
Furthermore, the following must be taken into
account:

the connecting piece must not protrude into
the chimney

if bends are used, the inner radius of the bend
must not be smaller than the pipe diameter

the connection point on the chimney must be
carefully tightened

vertical, straight chimney guide without
distortion (especially for extensions)

all cleaning doors and measuring openings on
the chimney must be closed tightly

to reduce false air, only one heat generator
should be connected to a chimney

a chimney draft regulator is to be
recommended. This provides a better
efficiency and therefore maximum economy
3.8.3 Correct dimensioning of
the chimney (according
to EN 13384)
The boiler may only be connected to a chimney
which has been calculated for the intended fuels
and loads and which complies with the building
regulations applicable to the installation site. The
following local situations are difficult to take into
account in the chimney calculation, but are
important for the correct functioning of the boiler
and chimney: