Ecoflam BLU 1700.1 PR Mode D'emploi page 10

EN
Installation
- Burner assembly
A
A1
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.
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.
LEGENDA
Pf: Back pressure of furnace
Pb: Pressure of burner (combustion head
+ complete gas train)
Pin: Minimum inlet pressure
10 www.ecoflam-burners.com
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.
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