Replacing The Nozzle - Riello RDB 2.2 BX 15/21 Installation, Use And Maintenance Instructions

6.3.1

Replacing the nozzle

Turn off the burner's power supply using the main
system switch.
DANGER
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).
Make sure the screw 3)(Fig. 17) is positioned in its
seat 7).
WARNING
20113295
Start-up, calibration and operation of the burner
18
GB
1
20138116
2
3
8
7
6
4
20138115
Fig. 15
1
5
Fig. 16