Installation
Burner assembly
Burner blast tube insertion depth and
brickwork
Unless otherwise specified by the boiler
manufacturer, heat generators without a
cooled front wall require brickwork or
insulation 5 as shown in the illustration.
The brickwork must not protrude beyond
the leading edge of the blast tube, and
should have a minimum conical angle of
60°. Gap 6 must be filled with an elastic,
non-combustible insulation material. For
boilers with reverse firing, the minimum
burner tube insertion depth A as speci fied
in the boiler manufacturer’s instructions
must be observed.
On boilers the blast tube insertion depth
should be observed as per the boiler
manufacturer's instructions.
Reverse flame boiler :
A = 50-100 mm.
Three pass boilers :
A1 = 50-100 mm.
Exhaust system
To avoid unfavourable noise emissions,
right-angled connectors should not be
used on the flue gas side of the boiler.
Burner assembly
The burner is fixed to the boiler.
Installation:
• fix the flange
3
to the boiler with
the screws
4
Removal:
• loosen the screws and remove the
burner.
General regulations applying to the
gas connection
• The gas train must only be connected
to the gas mains by a recognised
specialist.
• The cross-section of the gas line should
be of a size designed to guarantee that the
gas flow pressure does not drop below the
specified level.
• A manual shut-off valve (not supplied)
must be fi tted upstream of the gas train.
Ø
r
Gas lines
When installing the gas lines and gas train,
the general EN676 directives and
guidelines must be observed. Additional
accessories and kits shall be installed by
the installer in accordance to the local
safety regulations and codes of practise.
Upon the installer responsibility it is
mandatory to install additional
support(s) in order to not overload the
burner body with the dead load of full
gas train, accessories, piping and so
on. The burner body can stand just the
gas valve and the piping between the
gas valve and the body.
LEGENDA
Pf: Back pressure of furnace
Pb: Pressure of burner (combustion head
+ complete gas train)
Pin: Minimum inlet pressure
Oil connection
The filter must be located in such a way
that the correct hose routing cannot be
impaired. The hoses must not kink.
A
A1
4
3
420010915000
EN
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