Flue Terminal Positions - Worcester GREENSTAR 25CDi GC Instruction Manual

FLUE TERMINAL POSITIONS
Minimum dimensions of flue terminal positions for balanced room sealed flues with
fanned draught:
• The flue must be filted and terminated in
accordance with the recommendations of
8S5440 : Part 1.
DRWG.
REF:
TERMINAL POSITION DISTANCE
A'
8'
C'
Directly below an opening, air brick, opening windows, etc.
Above an opening, air brick, opening window, etc.
Horizontally to an opening, air brick, opening window, etc.
300mm
300mm
300mm
D Below gutters, soil pipes or drain pipes 75mm
E
Below eaves
200mm
F'
G
Below balconies or car
port
roof (lowest point)
From a vertical drain pipe or soil pipe
200mm
150mm
H From an internal or extemal corner
300mm
I
Above ground, roof or balcony 300mm
J From a surface facing the terminal
600mm
K From a terminal facing the terminal
1200mm
L' From an opening in the car
port
(e.g. door, window) into the dwelling
1200mm
M
Vertically from a terminal on the same wall 1500mm
N Horizontally from a terminal on the same wall 300mm
0 From a non combustible vertical structure on the roof
*
P
Above intersection with roof
*
0
Adjacent to windows or openings on pitched and flat roofs 600mm
R Below windows or openings on pitched roofs
2000mm
• The flue must not cause an obstruction.
• Discharge and any noise from the flue outlet
must not cause a nuisance.
• Flue gases have a tendency to plume and in
certain weather conditions a white plume of
condensation will be discharged from the
flue outlet. Where this could be a nuisance,
for example, near security lighting, an alter­
nate position should be found.
• The air inlet/outlet duct and the terminal of
the boiler must not
be
closer than 25mm to
any combustible material.
Detailed recommendations on protection of
combustible materials are given in
BS 5440:1
• A protective terminal guard must be fitted
if
the terminal is 2m or less above a surface to
which people have access.
The guard must be spaced equally (mini­
mum 50 mm) around the flue and fixed to
the wall with plated screws. See Contact
Information (inside front cover).
In addition, the terminal should not be nearer than 150mm (fanned draught) to an opening
in the building fabric formed for the purpose of accommodating a built-in element such as a
window frame.
2 Not recommended.
*
See instructions supplied with vertical Hue kits.
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR 25CDi/3OCOiI37CDV42 COl
~ORCESTER
FLUE TERMINAL POSITIONS
67'20513700. (2006111)