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there is no sag in the flue pipe and a mini-
mum fall of 1,5 deg. (25 mm per metre) over
the whole length towards the boiler is en-
sured.
Before fitting the flue system, ensure that
the flue gasket shown in Fig. 6.5 (given with
the boiler) is fitted to the boiler.
6.8
Choice of flue
The following flue kits are available for con-
necting to the boiler:
Standard horizontal flue kit (Fig. 6.6 A)
Type C
13
B
A
Fig. 6.6
Co-axial 60/100 mm - nominal length 1 m
This kit can be fitted to allow discharge to
the rear or either side of the boiler via the
flanged boiler adapter elbow. Minimum
length required is 0.3 m. Maximum equiva-
lent length of 2,5 metres can be achieved
utilising extensions. This flue system can
only be used to discharge horizontally, it is
not designed to enable termination in the
vertical plane.
- 46 -
INSTALLATION
Vertical kit with 90° elbow (Fig. 6.6 B)
Co-axial 60/100 mm.
Supplied with a straight flanged adapter a
co-axial elbow and a co-axial pipe with ter-
minal, this kit allows for a vertical rise of 0,5
m from the boiler. In all circumstances the
flue terminal must discharge horizontally
and the equivalent flue length must not ex-
ceed 2,7 metres.
Elbows 45° & 90° (Fig. 6.6 C)
Coaxial 60/100 mm.
Elbow kits enable the standard flue kits to be
offset to overcome obstructions or ensure
the correct clearances for the flue terminal.
Each elbow used in addition to the standard
flanged elbow reduces the overall accept-
able length of the flue system as follows:
For the elbow of 45° loss
For the elbow of 90° loss
Twin pipe kits ø 80 mm (Fig. 6.7 - Fig. 6.8)
Type C
90°
C
45°
Fig. 6.7
Various twin (split) pipes kits and optional
accessories (elbows) are available to assist
in the termination of the flue where the boiler
is installed in a location remote to an outside
wall.
These kits allow for separation of the air
12
0,5 m
1 m
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