07/2009 - Art. Nr. 13 022 182A
9
Assembly
Burner assembly
Burner assembly
Burner flange
3
is equipped with
elongated slots and can be used with a
drilling Ø of 150 - 180 mm. These
dimensions comply with EN 226.
The insertion depth of the combustion
components can be adjusted to the
geometry of the combustion chamber by
sliding pipe bracket
2
on the burner's
flame tube. The installed depth remains
the same during fitting and removal.
Pipe bracket
2
secures the burner to the
connecting flange and therefore to the
boiler. This completely seals off the
combustion chamber.
Installation:
• Secure connecting flange
3
to the
boiler using screws
4
.
• Fit pipe bracket
2
to the burner pipe
and secure using screw
1
. Tighten
screw
1
to a maximum torque of 6 Nm.
• Turn the burner slightly, guide it into
the flange and secure using screw
5
.
Removal:
• Unscrew screw
5
.
• Turn the burner out of the bayonet
socket and pull it out of the flange.
Burner tube installation depth and
brickwork surround
Unless otherwise specified by the boiler
manufacturer, heat generators without a
cooled front wall require brickwork or
insulation
5
as shown in the illustration
opposite. The brickwork must not
protrude beyond the leading edge of the
flame tube, and should have a maximum
conical angle of 60°. Gap
6
must be filled
with an elastic, non-flammable
insulation material. On boilers with
reverse firing, minimum flame tube
insertion depth
A
should be observed as
per the boiler manufacturer's
instructions.
Gas train assembly
• Check that O-ring gasket
J1
is present
and correctly fitted to the flange.
• Fit the gas train.
• Route the connection cable for the gas
train through clamp
7
and connect it to
the gas train.
Inspection glass cooling
The burner housing can be equipped
with an R1/8" connection to support a
line for cooling the inspection glass of
the boiler.
• To do this, drill through boss
6
and cut
an 1/8" thread.
• Use accessories article no. 12 056 459
for the threaded union and connection
hose.
Exhaust gas evacuation system
To avoid unfavourable noise emissions,
right-angled connectors should not be
used to connect the boiler to the flue.
en
Summary of Contents for NC12 B117
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