Maintenance Position - Riello RG2 Installation, Use And Maintenance Instructions

5.12 Maintenance position

There are two ways to access the nozzle, the diffuser disc and
the electrodes:
1st Method (Fig. 15):
 remove the wires 4) from the control box, the flame sensor
5) and unscrew the nut 3) from the pump.
 Loosen the screws 2) and extract the nozzle-holder assem-
bly 1) by turning to the right.
 Remove the wires 4) from the electrodes, loosen the screw
3)(Fig. 13) and remove the diffuser disc-holder assembly 7)
from the nozzle-holder assembly 1).
 Screw on the nozzle 6) while holding the nozzle holder still
with a spanner.
 Refit following the operations in the reverse order to the one
described above.
2
4
5
6
3
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Installation
1
7
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Fig. 15
20
2nd Method (Fig. 16):
 unscrew and remove the fixing nut to the flange and remove
the burner from the boiler.
 Connect the burner to flange 1), loosen the screws 3) then
remove the blast tube unit 2).
 Remove the wires 4) from the electrodes.
 Replace and correctly screw in the nozzle 6), tightening it as
shown in Fig. 16.
 Refit following the operations in the reverse order to the one
described above.
Having put back the nozzle-holder assembly,
screw in the nut 9), as shown in Fig. 17.
WARNING
2
5
4
S9698
Tighten without
bringing right
to the end stop
GB
3
6
1
Fig. 16
9
Fig. 17
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