Flue System and
Air Supply
37
!
NOTE
!
NOTE
Dimension B given in Figure 9-14
includes an extra 10mm over the size
of the terminal to provide clearance
for fitting.
Fitting instructions for the high level
balanced flue and vertical balanced
flue are supplied with the flue kits.
Adjustable Extensions
The adjustable extensions are
telescopic. The wall terminal section is
adjustable and is suitable for a wall
thickness of 215mm to 450mm.
Simply adjust to the required length
using a twisting motion. The outer pipes
must overlap by a minimum of 25mm.
9.6 High Level and Vertical
Balanced Flue
If the boiler is to be used with the high
level balanced flue (White system) make
the hole in the wall as shown in
Figure 9-14.
Figure 9-14: Flue hole dimensions and position for high level system
Low level balanced flue - Yellow system
External flue starter kit - Green system
High level balanced flue - White system
Rear flue Side flue
Figure 9-13: Flue hole dimensions and position for low level systems
Dimension (mm)
A dia B CD
127 112 H + 765* 220
*H is the height from the floor to underside of
boiler casing
Dimension (mm)
A dia B C min D min D max E
175 112
H + 1207* H + 1707* H + 2107*
220
*H is the height from the floor to underside of boiler casing
Dimension B given in Figure 9-13
includes an extra 10mm over the size
of the terminal to provide clearance
for fitting.
9
.5 Prepare the Wall
If the boiler is to be used with a low level
balanced flue (Yellow system) make the
hole in the wall for the flue as shown in
Figure 9-13.
A
A
C
C
D
R
ear flue Side flue
B
H
H
A
A
B
C
D
C
D
H
E
H
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