3 Safety Instructions And Regulations - Vaillant ecoTEC VU 466/4 Installation And Maintenance Instructions Manual

3 Safety instructions and regulations

J
Fig. 3.3 Termination of the air/flue gas duct
The flue system shall be so placed or shielded as to
prevent ignition or damage to any part of the building.
Location
Directly below an opening, air brick, opening win-
A
dows, etc.
B Above an opening, air brick, opening window, etc. 300 mm
Horizontally to an opening, air brick, opening
C
window, etc.
Below temperature-sensitive building compo-
D
nents e.g. plastic gutters, soil pipes or drain pipes
E Below eaves
F Below balconies or car port roof
G From a vertical drain pipe or soil pipe
H From an internal or external corner
I Above ground, roof or balcony level
J From a surface facing the terminal
K From a terminal facing the terminal
From an opening in the car port (e.g. door, win-
L
dow) into the dwelling
M Vertically from a terminal on the same wall
N Horizontally from a terminal on the same wall
O From the wall on which the terminal is mounted
P From a vertical structure on the roof
Q Above intersection with roof
Table 3.1 Position of the termination in a fan-assisted air/flue
gas duct
8
P
D, E
B
C
A
G
I I
h
Minimum
dimensions
300 mm
BS 5440–1 It is recommended that the fanned flue
300 mm
terminal should be positioned as follows:
a) at least 2 m from an opening in the building directly
75 mm
200 mm
b) so that the products of combustion are not straightly
200 mm
150 mm
1) Dimensions D, E and F:
200 mm
300 mm
600 mm
1200 mm
1200 mm
2) Dimension H:
1500 mm
300 mm
N/A
N/A
300 mm
N
O
N
Note!
In addition, the terminal should not be nearer
than 300 mm to an opening in the building
fabric formed for the purpose of
accommodating a built–in element such as a
window.
opposite, and
directed to discharge across a boundary.
These clearances may be reduced to 25 mm without
affecting the performance of the boiler. In order to
ensure that the condensate plume does not affect
adjacent surfaces the terminal should be extended as
shown in Fig. 3.3.
This clearance may be reduced to 25 mm without
affecting the performance of the boiler. However, in
order to ensure that the condensate plume does not
affect adjacent surfaces a clearance of 300 mm is
preferred. For IE, recommendations are given in the
current edition of IS 813.
Installation and maintenance instructions ecoTEC 0020029172_03