15
4.3.2 Using the boiler template
(fig. 12)
4.3.2.1 Once a suitable location has
been chosen, fix the paper installation
template on the wall ensuring that the
centerline of the template is vertical
using a spirit level or plumb line.
The template shows the positions of
the fixing holes for the boiler hanging
bracket (2) and the optional
pre-installation connection group (3).
The template also shows the position
of the flue exit hole, for use where the
air flue duct is to be installed directly
to the rear of the boiler, e.g. where
the boiler is installed on an outside
wall and the flue terminates directly
behind.
4.3.2.2 A Pre - installation connection
group (Art. No. 8015) is available as
an optional accessory. It is used to
allow the installation of the central
heating and domestic hot water
pipework without the need to have the
boiler in position. Where an old
existing Vaillant boiler is to be
replaced, the boiler replacement
accessory (Art. No. 300 813) can be
used to allow easy connection on the
new boiler to the existing connecting
group. Refer to the instructions
supplied separately with these
accessories.
4.3.2.3 Mark on the wall the positions
of the hanging bracket fixing holes (2).
Drill two holes Ø 10 mm for the
hanging bracket. (Note: Use the
alternative fixing holes where
necessary).
4.3.2.4 Rear exit flue.
Mark the position of the centre of the
flue duct and its circumference, e.g.
by drilling through the template
(1, fig. 12).
4.3.2.5 Other flue options.
Refer to the installation instructions
supplied with the flue accessory for
detailed instructions on other flue
options such as vertical RSF flues, flue
runs to the side of the boiler and the
use of additional flue elbows and
bends etc.
4.3.2.6 Remove the template from the
wall and plug the drilled holes using
the wallplugs supplied.
1
2
3
fig. 12
GW 426/1
4.3.3 Fitting the boiler hanging
bracket.
Secure the hanging bracket to the
wall using the screws supplied. (If the
condition of the wall is poor it may
be necessary to use additional or
alternative fixings to ensure adequate
support).
NOTE: If the boiler is to be fitted in a
timber framed building ensure that the
brackets are secured to a substantial
part of the timber frame capable of
taking the weight of the boiler.
