The flue system must be installed in accordance with the
regulations in force.
Information
Maximum flue gas temperature 250°C
(Both burners on)
Minimum flue gas temperature 125°C
(Boiler burner on only)
The appliance requires a minimum recommended height
of 4m with a minimum chimney draught of 1.0mm (0.04
WG) with both burners on.
Maximum chimney draught 6.0mm (0.23” WG) draughts
in excess of this figure will require a draught stabiliser,
fitted either in the chimney or flue pipe and in the same
compartment.
It is recommended that the 120K model is connected to a
flue liner no less than 125mm (5”) diameter. It is
recommended that the 150K model is connected to a flue
liner no less than 150mm (6”) with the flue adaptor no
more than 1 metre above the appliance.
Detailed recommendations for flueing in England and
Wales are given in Part J of the Building Regulations. For
Scotland in Technical Standard F to the Building
Standards and in Northern Ireland in Technical Booklet L
to the Building Regulations. Guidance is also given in
BS5410: Part 1.
Due to the range in flue gas temperatures a brick chimney
should be fitted with a suitable mutli-fuel stainless steel
flexible liner. Where it is necessary to avoid condensation,
such as an exposed end gable, the lining may be wrapped
with a proprietary insulating bracket.
NOTE: TO ACHIEVE THE OPTIMUM OPERATIONAL
SOUND LEVELS FROM THE APPLIANCE IT IS
RECOMMENDED THAT CAST IRON FLUE PIPE IS
USED WHERE POSSIBLE.
Chimney Termination
All chimneys should terminate at least 600mm above the
roof level in accordance with current Building Regulations
and statutory requirements as outlined is BS 5410: Part 1,
BS 6461: Part 1 and BS 7566 Parts 1 to 4.
Chimney Cleaning
Ensure there are accessible airtight flue cleaning doors in
order to obtain cleaning access to the complete chimney.
Providing the appliance is operating correctly, an annual
chimney flue cleaning will suffice, but if in doubt arrange
for a half yearly clean, preferably at the beginning/end of
the heating season.
Site requirements
9
FLUE SYSTEM
FIG. 5
Installation of a conventional flue
DESN 514844 A
Содержание Alpha 120K
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