Installation
27
H 11
Fig. 6.4
6.7
Fitting the flue system
Refer to the assembly instructions contained with-
in the chosen flue kit packaging for the correct as-
sembly and installation.
In general, it has to be taken in consideration that
the horizontal sections of the flue pipe must have
an horizontal sloping not less than 1.5 deg. (25
mm per metre) towards the boiler.
In the standard horizontal flue kit (Fig. 6.6A) the
flue pipe is angled within the air duct therefore the
air duct must be horizontally installed.
If one or more extensions have to be used they
must be adequately supported so that there is no
sag in the flue pipe and a minimum fall of 1,5 deg.
(25 mm per metre) over the whole length towards
the boiler is ensured.
Before fitting the flue system, ensure that the flue
gasket shown in Fig. 6.5 (given with the boiler) is
fitted to the boiler.
Fig. 6.5
6.8
Choice of flue
The following flue kits are available for connecting
to the boiler:
Standard horizontal flue kit (Fig. 6.6A)
Co---axial 60/100mm --- nominal length 1m
This kit is normally supplied with the boiler and can
be fitted to allow discharge to the rear or either
side of the boiler via the flanged boiler adapter el-
bow. Minimum length required is 0.3 m. Maximum
equivalent length of 2,7 metres (for M96A.24SM/...
and M96A.28SM/...) can be achieved utilising ex-
tensions. This flue system can only be used to dis-
charge horizontally, it is not designed to enable
termination in the vertical plane.
Vertical kit with 90
˚
elbow (Fig. 6.6B)
Co---axial 60/100 mm
Supplied with a straight flanged adapter a co---
axial elbow and a co---axial pipe with terminal, this
kit allows for a vertical rise of 0,5 m from the boiler.
In all circumstances the flue terminal must dis-
charge horizontally and the equivalent flue length
must not exceed 2,7 metres (for M96A.24SM/...
and M96A.28SM/...).
IN
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