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Installation
1.7
Flue installation
1.7.1
Siting the flue terminal
N
A
A
F
M
G
E
fig. 12 Flue terminal position
The flue must be installed in accordance with the recommen-
dations of BS. 5440-1:2000.
Pluming will occur at the terminal so terminal positions where
this could cause a nuisance should be avoided.
The air supply and the flue gas exhaust must meet the appli-
cable general regulations. Please consult the instructions
provided with the flue terminal kits prior to installation.
The boiler MUST be installed so that the terminal is exposed
to external air.
It is important that the position of the terminal allows the free
passage of air at all times.
Minimum acceptable spacing from the terminal to obstructions
and ventilation openings are specified in table 1.
If the lowest part of the terminal is less than 2 metres above the
level of the ground, balcony, flat roof or place to which any
person has access, the terminal must be protected by a guard.
Ensure that the guard is fitted centrally.
The flue assembly shall be so placed or shielded as to prevent
ignition or damage to any part of the building.
The air inlet/products outlet duct and the terminal of the boiler
MUST NOT be closer than 25 mm to combustible material.
Detailed recommendations on the protection of combustible
material are given in BS. 5440- 1:2000.
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for Buderus 500 - 24/C and 500 - 28/C • 02/2005
N
B,C
B,C
M
K
F
F
G
under carport
J
H, I
O
C
K
L
L
K
G
D
F
K
G
table 1
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
Terminal Position
A. Directly below, above or alongside
an opening window, air vent or
other ventilation opening
B. Below guttering, drain pipes or soil
pipes
C. Below eaves
D. Below balconies or a car port roof
Not recommended!
E. From vertical drain pipes or soil
pipes
F. From internal or external corners
G. Above adjacent ground, roof or
balcony level
H. From a surface facing the terminal
I.
From a terminal facing a terminal
J. From an opening in a car port (e.g.
door or window) into dwelling.
Not recommended!
K. Vertically from a terminal on the
same wall
L. Horizontally from a terminal on the
wall
M. Adjacent to opening
N. Above intersection with roof
O. From a vertical structure on the roof
Balanced flue terminal position
1
Minimum
Spacing
300 mm
200 mm
200 mm
200 mm
150 mm
300 mm
300 mm
600 mm
1200 mm
1200 mm
1500 mm
300 mm
300 mm
300 mm
500 mm
15
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