Clearances; Flue/Chimney Location - Baxi COMBI 224 Installation And Service Manual

5 Before installation
Fig.20

Clearances

5.0
Fig.21 Flue outlets
Tab.22 Terminal position with minimum distance
Key Description
Directly below an opening, air brick open­
A
(1)
ing window etc.
Above an opening, air brick, opening win­
B
(1)
dow etc.
32
5.3.6 Clearances
A flat vertical area is required for the installation of the boiler and it should
be capable of bearing the weight of the boiler when full of water.
These dimensions include the necessary clearances around the boiler for
case removal, spanner access and air movement. Additional clearances
may be required for the passage of pipes around local obstructions such
as joists running parallel to the front face of the boiler.
A*
B*
PN-0000205

5.3.7 Flue/chimney location

The following guidelines indicate the general requirements for siting bal­
anced flue terminals. For GB recommendations are given in BS 5440 Pt 1.
For IE recommendations are given in the current edition of I.S. 813 Do­
mestic Gas Installations.
J,K
T
N
R
M
I
I
F
L
1
1
Clearance below — 200mm minimum, 250mm recommended
Clearance in front — 450mm minimum, 1000mm recommended
Note
Due to the nature of the boiler a plume of water vapour will be dis­
charged from the flue. This should be taken into account when sit­
ing the flue terminal.
U
D A
E
C
I
S
B
F
A
A
G
H
H
I
Flue positions marked
mm Key Description
300 J From a surface or boundary line facing
a terminal
300 K From a terminal facing a terminal
(Horizontal flue)
From a terminal facing a terminal (Ver­
tical flue)
I
J,K
require a flue terminal guard.
7661586 - 2 - 12072016
PN-0000206
mm
600
1200
600