Installation Manual

15
Flue terminal position (cont.)
Position
O
P
Q
R
300mm
1000mm
600mm
300mm
From adjacent wall
From adjacent opening window
From another terminal
Minimum height
Minimum Spacing
Flue Terminal Location
Detailed recommendations for flue
installation are given in BS 5440:1. The
following notes are for general guidance.
• The boiler must be installed so that the
terminal is exposed to external air.
• It is important that the position of the
terminal allows free passage of air across
it at all times.
• It is essential to ensure that products of
combustion discharging from the terminal
cannot re-enter the building or any other
adjacent building, through ventilators,
windows, doors, other sources of natural
air infiltration or forced ventilation / air
conditioning.
• The minimum acceptable dimensions
from the terminal to obstructions and
ventilation openings are specified above
(BS 5440 Part 1).
• If the terminal discharges into a pathway
or passageway check that combustion
products will not cause nuisance and
that the terminal will not obstruct the
passageway.
• Where the lowest part of the terminal is
fitted less than 2m above ground, above
a balcony or above a flat roof to which
people have access, the terminal must
be protected by a purpose designed
guard. (Available as an optional extra).
• Where the terminal is fitted within
850mm of a plastic or painted
gutter, or 450mm of painted eaves, an
aluminium shield at least 750mm long
must be fitted to the underside of the
painted surface.
• The air inlet / flue outlet duct must
not be closer that 25mm to
combustible material.
• Due to the high efficiency of the boiler
the terminal may emit a plume of
vapour. This is normal but positions
where this would cause a nuisance
should be avoided.
5350 485 GB 08/2007
Vitoden 200-W installation 4/9/07 7:27 pm Page 15