Riello RDB 2.2 BX 15/21 - Replacing the Nozzle

Start-up, calibration and operation of the burner
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18
GB
6.3.1 Replacing the nozzle
To replace the nozzle, proceed as follows:
 loosen the nut 1) and take the burner out of the boiler.
 Loosen the 3 screws 1)(Fig. 16) from the collar and remove
the blast tube 2);
 loosen the screw 3) and disconnect the high voltage
cables 4);
 remove the electrode-stabiliser unit 5);
 fix the nozzle-holder 6) with the aid of the wrench, then
replace the nozzle 8);
 loosen the nozzle with the aid of a size 16 wrench, and
replace it;
 screw in the nozzle again, then reassemble the electrode/
stabiliser unit, respecting the position of the electrodes.(See
Fig. 24 on page 24).
DANGER
Turn off the burner's power supply using the main
system switch.
WARNING
Make sure the screw 3)(Fig. 17) is positioned in its
seat 7).
1
Fig. 15
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2
1
3
5
8
7
4
6
Fig. 16
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