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5.7
Nozzle
The burner complies with the emission requirements of the EN
267 standard. In order to guarantee that emissions do not vary,
recommended and/or alternative nozzles specified by Riello in
the Instruction and warning booklet should be used.
It is advisable to replace the nozzle once a year
during periodical maintenance.
WARNING
WARNING
The use of nozzles other than those specified by
Riello S.p.A. and inadequate regular maintenance
may result into emission limits non-conforming to
the values set forth by the regulations in force, and
in extremely serious cases, into potential hazards
to people and objects.
CAUTION
The manufacturing company shall not be liable for
any such damage arising from non-observance of
the requirements contained in this manual.
5.7.1
Recommended nozzles
–
Bergonzo type A3 - angle 45° (Fig. 17)
–
Bergonzo type A4 - 45° angle
If you want a delivery somewhere between the two values shown
in the diagram (Fig. 17), select a nozzle with a higher flow rate.
The reduction in the flow rate is obtained with the pressure vari-
ator.
D1228
Installation
5.7.2
Nozzle installation
Remove the screw 1)(Fig. 18) and the internal part 2);
remove the nozzle 1)(Fig. 19) using a wheel spanner;
install the nozzle 1)(Fig. 19);
fix it with the spanner through the central hole of the flame
stability disk or loosen the screws 1)(Fig. 20);
remove the disk 2) and replace the nozzle with the spanner
3).
Do not use any sealing products such as:
Be careful to avoid damaging the nozzle seal-
WARNING
WARNING
The nozzle must be screwed into place tightly
Fig. 17
23
GB
gaskets, sealing compound, or tape.
ing seat.
but not to the maximum torque value pro-
vided by the wrench.
D3131
D9543
D9544
Fig. 18
Fig. 19
Fig. 20
20121288
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