Vaillant ecoFIT sustain Series Installation And Maintenance Instructions Manual page 13

6.6.2 Position of the air/flue terminal
V
M
Q
S
P
X
A
F
Y
6.6.2.1 Positioning the terminal of a fan-supported flue system
Installation site
A
Adjacent to a boundary.
The dimension below eaves, balconies and car ports can be reduced to this value, as long as the flue terminal is
1)
B
extended to clear any overhang. External flue joints must be sealed with a suitable silicon sealant.
C Between a vertical flue terminal and a window or dormer window on a roof.
D Between terminals facing each other.
E Vertical flue clearance, adjacent to a boundary line.
Distance to a boundary line, unless it will cause a nuisance. BS 5440:Part 1 recommends that care is taken
2)
F
when siting terminal in relation to boundary lines.
G Minimum clearance from a skylight to a vertical flue or to another vertical flue.
Vertical flue clearance, to noncombustible building material.
H
Vertical flue clearance to combustible building material.
J Above, below and either side of an opening door, air vent or opening window.
K Diagonally to an opening door, air vent or opening window.
2)
To an internal or external corner.
L
Below a Velux window.
M
Above or to either side of the Velux window.
From a pitched roof.
N
In regions with heavy snowfall.
P From vertical drain pipes and soil pipes.
Below eaves.
Q
Below gutters, pipe and drains.
1) There should be no ventilation/opening in the eaves within 300 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 from pluming depending on site conditions.
–
Terminals must be positioned so 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
fixings.
–
Installations in car ports are not recommended.
–
The flue cannot be lower than 1 metre from the top of a lightwell due to the build up of combustion products.
–
Dimensions from a flue terminal to a fanned air inlet to be determined by the ventilation equipment.
0020230529_06 ecoFIT sustain Installation and maintenance instructions
Z
Ba
N
J
H
J
Z
U
E
G
F
J
J
A
D
S
Aa
W
G
C
B
K
L
P
S
S
S
R
T
Dimensions
300 mm
25 mm
1,500 mm
1,200 mm
300 mm
600 mm
Min. 300 mm
500 mm
1,500 mm
300 mm
600 mm
200 mm
2,000 mm
600 mm
400 mm
500 mm
25 mm
200 mm
75 mm
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