eta 13180 LP-D, Руководство по установке

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Pellet store Fire safety regulations
83
On the ends of the pellet hoses, free around 5 cm of
copper litz wire from the hose and bend it inwards into
the hose.
This establishes a contact between conveyor and the
boiler. At the boiler, the copper litz wires are clamped
to the earthing cable near the pellet hose attachment
nozzles.
No contact with uninsulated heating pipes
The pellet hoses are designed for a temperature range
of -15°C to +60°C, so they may not come into contact
with uninsulated heating pipes.
UV protection outdoors
When pellet hoses are installed outdoors, they must be
enclosed in a protective conduit to protect them from
ultraviolet radiation. If the pellet hoses are not
protected, they can become brittle, leading to a
reduced service life.
Mount fire-resistant collars (if required)
If the pellet hoses from the storeroom feed over a
fire section (for example a room in-between) to
the boiler room, fire-resistant collars must be fitted
over both pellet hoses.
In wall ducts, a fire protection sleeve must be mounted
on each side, with ceiling ducts only positioned on the
ceiling side.
Fig. 13-18: Fire-resistant collar
In the event of a fire, the internal material of the fire-
resistant collar expands and thus closes the pellet
hoses. So burn-back is prevented in rooms through
which the pellet hoses are fed.
13.9 Fire safety regulations
Fire safety regulations in Austria
Legally, fire safety is regulated in the various building
codes of the states, though all state legislation is based
on the TRVB H 118 "Technische Richtlinien vorbeu-
gender Brandschutz - automatische Holzfeuerungsan-
lagen" (technical directives for preventive fire safety for
automated wood combustion systems).
For questions about details, consult an expert or the
building inspectorate or the regional fire prevention
agency.
Wood and fuel storage rooms within a building:
• All walls and ceilings REI90 (F90).
• Doors between boiler room and fuel store, and
doors and windows to the outside EI30 (T30) or
E30 (G30).
• Self-closing doors to rooms with increased fire
danger (tank rooms, garages), to escape routes
and to rooms above them (staircase), either 2x
EI30 (T30) or EI90 (T90).
• Windows that cannot be opened
• Ventilation openings in the outer wall barred, with
mesh less than 5 mm
• Air inlet and outlet pipes and pellet store filling lines
that are routed through other fire compartments
are to be implemented as EI90 (K90 or L90).
• For pellet-conveying hoses through rooms outside
the boiler room (fire compartment), fire-resistant
collars must be installed in the wall openings facing
the boiler room.
Free-standing wood and fuel storage rooms:
• All walls, ceilings and doors to the outside fireproof
• Doors between boiler room and fuel store must be
EI30 (T30)
• Maintain clearances from buildings and property
boundaries according to state building legislation.
• Otherwise no special requirements
Pellet storage container in boiler room or outdoors
directly next to building:
• Currently only allowed in Austria if the boiler output
is less than 50 kW and the container is smaller
than 15 m³ (9.5 tons) (Bulletin MVB 29/2005 from
Upper Austrian fire prevention agency).