Vaillant ECOTEC PLUS VU 80 Installation And Maintenance Instructions Manual page 23

D,E
A
H E
7.2 Opening of the flue pipe
Installation site
Horizontal flue gas pipes
A Directly below an opening, air bricks, opening
windows, etc.
(5)
B Above an opening, air bricks, opening windows,
etc.
C Horizontally to an opening, air bricks, opening
windows, etc.
D Below temperature-sensitive building compo-
nents e.g. plastic gutters, down pipes or waste-
water pipes
(4)
E Below eaves, adjacent to wastewater pipes
F Below balconies or car port roofs
(4)
G From a vertical wastewater pipes or down pipes
H From internal or external corners
(2)
H From the edges along to a terminal/outside
corner
J Opposite an edge or a terminal
(2)
J From a surface facing a terminal
L From an opening in the car port (e.g. door,
window) which leads into the dwelling
M Vertical from a terminal
N Horizontal from a terminal
Vertical flue gas pipes
P From another terminal
Q Above the roof area
(3)
R From adjacent windows that cannot be opened
(2)
S From an adjacent wall to the flue gas pipe
7.1 Position of the opening of a fan-assisted flue gas guiding
Key:
(1)
There should be no ventilation/opening in the eaves within
600 mm distance of the terminal.
(2)
These dimensions comply with the building regulations, but they
may need to be increased to avoid wall staining and nuisance
fron pluming depending on site conditions.
(3)
It is recommended that an elbow termination is fitted to direct
the plume away from windows.
(4)
If the pipe is shielded from the heat this dimension may be
reduced to 25 mm.
ecoTEC plus installation and maintenance instructions 0020134823_01
B
2m
S
Minimum
dimen-
sions
600 mm
600 mm
600 mm
25 mm
(1)
50 mm
25 mm
50 mm
50 mm
300 mm
2000 mm
1000 mm
N/A
1500 mm
600 mm
600 mm
600 mm
1000 mm
300 mm
Flue gas installation
P
Q
B
C
M
H
N
(5)
The flue through the roof should not be located within the
shaded area.
(6)
Is is recommended that the terminal should not be located
below 2 m in any occupied space.
BS 5440–1: It is recommended that the fanned flue terminal
should be positioned as follows:
– at least 2 m from an opening in the building directly
opposite, and
– so that the products of combustion are not discharged
directly across a property boundary.
– Dimensions D, E and F:
These clearances may be reduced to 25 mm without
affecting the performance of the boiler. In order to
ensure that the condensate vapour plume does not dam-
age adjacent surfaces, the terminal should be extended
as shown in ¬ fig. 7.3.
– Dimension H:
This clearance may be reduced to 25 mm without
adversely affecting the performance of the boiler. How-
ever, in order to ensure that the condensate vapour
plume does not damage adjacent surfaces, a clearance
of 300 mm is preferred.
For IE, recommendations are given in the current issue
of the IS 813.
Adequately secured
air/flue gas pipe
7.3 Opening of the flue gas system under balconies or eaves
Q
A
B
C
H
Balcony/eaves
Gutter
The flue pipe must
protrude beyond any overhang
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