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Installation inside a cupboard
For installation of the gas fi red boiler inside a
cupboard note the following:
Never install the gas fi red boiler on the back wall
of the cupboard, as it may not be substantial
enough to take the boiler's weight. This would
create the risk of water and gas leaks which
in turn would result in a risk of explosion and
fl ooding.
Removing the rear wall of the cupboard
Minimum lateral clearance between the gas
fi red boiler and the cupboard sides 25 mm.
A cutout of 410 x 550 mm is required in the
cupboard top. Otherwise there is a risk of
suffocation and poisoning
With open fl ue gas fi red boilers the
ventilation grille in the cupboard door must
be installed with a free minimum diameter of
600 cm
.
2
Otherwise there is a risk of suffocation and
poisoning.
Gas connection
Laying the gas pipe, as well as making the
gas connections, must only be carried out by
a licensed gas fi tter. Close the gas ball valve
on the gas fi red combi boiler to pressure test
the gas pipe.
Remove all residues from the heating pipework
and the gas pipe prior to connecting the gas
fi red boiler, particularly in older systems.
Prior to commissioning, test all pipe and gas
connections for leaks.
Inappropriate installation or using unsuitable
components or assemblies may lead to gas
escaping, which results in a risk of poisoning
and explosion.
The gas valve can be subjected to a
maximum pressure of 150 mbar. Higher
pressure may damage the gas valve,
resulting in a risk of explosion, asphyxiation
or poisoning. Close the gas ball valve on
the gas fi red boiler to pressure test the
gas pipe.
Hydraulic connections
- Wolf connection sets (accessories) are available for
installation on fi nished and unfi nished walls. The
connection pipes are Cu 18x1.
3062347_0309
General boiler installation
Cold water and DHW connection
For the cold water and DHW connection, we recommend
installation in accordance with the diagram below.
Fig.: Cold water connection
Note:
Fig.: Throughput controller with cold water strainer
Install a tested and certified pressure
reducer, if the cold water supply pressure is
above the maximum permissible operating
pressure of 10 bar. Otherwise water could
escape resulting in a risk of fl ooding.
As standard, a combined cold water strainer
with throughput controller is fi tted at the cold
water connection of the boiler (see Fig.).
As the cold water strainer may need
to be cleaned, provide a facility for its
removal in site.
Otherwise there is a risk of faults.
Note
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