5
T
raditional concentric flue system, Figure 3a, with a maximum length of
5000mm. The flanged flue elbow is designed with 3° slope towards the
appliance so that the condensate can easily drain off. It has to be
considered that for every metre horizontal flue length the terminal exit
centreline is approx. 45 mm higher than the elbow’s centreline.
The standard terminal is 755mm long but can be cut to a minimum flue
length of 250mm, which is suitable for single, 100mm (4"), brick walls.
Ø60/100mm concentric
standard horizontal wall
terminal.
Max. length 5000mm.
Min. length 250mm.
The pluming from the flue may
cause nuisance to neighbours
or other buildings.
Horizontal terminal has a
built-in fall in the flue to allow
condensate to drain away.
If horizontal flue requires
extension pipe, the flue
should be installed such
that there is no section less than
2.5º – 3º to the horizontal.
93 flanged elbow (concentric)
with sampling point
Standard horizontal flue kit - Part no. 956083
Kit A
60/100 flue accessories:
0.5m flue extension duct - 956092
1m flue extension duct - 956093
93 flue extension elbow - 956091
45 flue extension elbow (2x) - 956090
Vertical flue turret - 956087
3a
(C13) - PART NO.956083
2.5.1
KIT A HORIZONTAL WALL TERMINAL
TERMINAL (C33) - HBL PART 956081
2.5.2
KIT B VERTICAL CONCENTRIC FLUE
3b
Standar
d concentric (ø100/60) vertical flue application, Figures
3b, 3c, through roof attics with a maximum length of 12000mm.
The kit comprises of the roof terminal, flashing kit, vertical
adaptor with sampling point and bracket.
The maximum length is measured from the top of the appliance
casing to the underside of the air cowl.
For installation details refer to the flue kit instructions.
Fig 3(c) Of
fset vertical flue.
‘a’ measur
ed from boiler flue outlet centre line to the centre line
of the extension elbow.
‘b’ measured from the top of the boiler to the underside of the air
cowl.
Maximum allowable length of a + b = 8900mm
3c
If the standar
d horizontal terminal is likely to causes nuisance to a
neighbour or buildings, because of excess pluming, then this
particular flue kit raises the flue gas outlet point to a higher
elevation with the minimum amount of changes. The flue gas duct
is teed-off from the concentric part and covered by an 80mm
outer tube to protect the flue duct from freezing. The air in-take
remains at the lower level (see Figure 3d).
If choosing this option then the external flue duct length should be
taken into account when calculating equivalent flue length.
For installation details refer to the flue kit instructions.
FLUE KIT (C13) – PART NO. 956084
2.5.3
2.5.3 KIT C: HORIZONTAL ANTI-PLUME
Dimensions from vertical terminals to opening
windows should be in line with Figure 5.
