Technical data

3131
Plume management
terminal positioning
200
300
150
200
8
4
5
3
2
9
200
600
300
300
150
150
300
300
25
25
150
1,200
300
200
10
100
600
Plume re-direction:
180°
±80°
1
7
±45°
Flue exhaust
outlet
Air intake
6
10
Boundary line
150
300
300
Flue terminal guard 7 716 191 176
600
1,500
All measurements in millimetres
Note
•
All measurements are the minimum clearances required
•
Refer to pages 24-25 for all concentric flue terminal positions
unless the flue position is specified on the figure above
“Plume terminal positions”
•
Terminals must be positioned so as to avoid combustion
products entering the building
•
Support the flue at approximately one metre intervals and at a
change of direction, use suitable brackets and fittings.
Key to illustration
1. This feature allows some basic plume re-direction options
on a standard telescopic horizontal flue terminal. 300mm
minimum clearances to a opening, e.g. window. However the
minimum clearances to an opening in the direction that the
plume management is facing, must be increased to 1,500mm.
Where the flue is less than 150mm to a drainpipe, and plume
re-direction is used, the deflector should not be directed
towards the drainpipe.
2. 300mm adjacent to a boundary line.
3. Plume Management Kit air intake can be reduced to 150mm
providing the flue exhaust outlet is no less than 300mm
adjacent to a boundary line.
4. 1,200mm between terminals facing each other.
5. 600mm distance to a boundary line, unless it will cause a
nuisance. BS 5440:Part 1 recommends that care is taken when
siting terminal in relation to boundary lines.
6. Using a Plume Management Kit, the air intake measurement
can be reduced to 150mm providing the flue exhaust outlet has
a 300mm clearance. Plume kits running horizontally must have
a 10° fall back to the boiler for proper disposal of condensate.
For details on specific lengths see relevant boiler Technical &
Specification information.
7. Internal/external corners. The air intake clearance can be
reduced to 150mm providing the flue exhaust outlet has a
300mm clearance.
8. Clearances no less than 200mm from the lowest point of the
balcony or overhang.
9. 1,200mm from an opening in a car port on the same wall e.g.
door or window leading into the dwelling.
10. 600mm distance to a surface facing a terminal, unless it will
cause a nuisance. BS 5440: Part 1 recommends that care is
taken when siting terminals in relation to surfaces facing
a terminal.
•
Installations in car ports are not recommended
•
The flue cannot be lower than 1,000mm from the top of a
light well due to the build up of combustion products
•
Dimensions from a flue terminal to a fanned air inlet to
be determined.