Hoval 2-Max-3 condens, Руководство по сборке

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4 215 983 / 01 13
InSTaLLaTIOn
4.2 Flue gas connection and dimensioning
To guarantee economical and fault­free operation, boiler
and flue gas system must be mutually adapted to create
a functional unit.
NOTICE
If the flue gas temperature is under 160 °C,
the flue gas lines must be watertight, acid-
resistant and overpressure­tight.
NOTICE
Horizontal connecting pipes must be installed
with an inclination of at least 50 mm per metre
of their length installed in the direction of the
boiler to allow free return of condensation
wa ter towards the boiler. The whole flue gas
sys tem must be installed so that condensate
can never collect at any point.
Renovation or flue gas line cross-section adjustment can
be necessary with existing flue gas systems, according to
the instructions of a specialist.
The function of the flue gas system, i.e. the production of
the necessary delivery pressure is basically dependent
on:
a. The type (nature) of the flue gas system (thermal in-
su lation, interior surface roughness, sealing etc.)
b. The connection of the boiler to the flue gas system
ac cor ding to specifications
c. The correct size of the flue gas system
Flue gas systems according to EN 13384, part 2, exe cu­
tion types I and II are appropriate for modern firing sys-
tems (advice from the specialist is necessary). Pay at ten­
tion to the flue gas temperature at nominal output; see
flue gas output diagram.
NOTICE
Normally only one heat generator may be
con nected to the flue gas system!
Where a transition element is necessary from the boiler
flue gas pipe to the chimney inlet, this should be executed
as a slender cone.
vom
Kessel
zum
Schornstein
from the
boiler
to the flue
gas system
Figure 01
4. Installation
4.1 Boiler room requirements
The valid building supervisory regulations for the in stal­
la tion location are applicable for the construction re quire­
ments for boiler rooms and their aeration and ventilation.
In Germany, the firing regulations for the individual states
are to be complied with.
Make sure there is an adequate supply of fresh air
to the boiler room
to ensure that the combustion air supply necessary for
all the firing systems operated there can flow in without
hin drance and that no oxygen deficiency occurs for the
op er at ing personnel.
Binding values for the size of supply air openings are not
generally specified in the relevant regulations; it is merely
required that no negative pressure in excess of 3 N/m
2
occurs. With rectangular apertures the side ratio is not
to exceed 1.5 : 1 and an appropriate supplement is to
be made with grilles to ensure that the free cross­section
reaches the above values.