Riello RS 50/M MZ Manuel D'entretien page 14

Installation
4
Securing the burner to the boiler
Before fixing the burner to the boiler, check from the
opening of the blast tube that the probe and the elec-
trode are correctly positioned, as in Fig. 12.
If, in the previous check, the position of the probe or
electrode was not correct, remove the screw 1)(Fig. 13),
extract the inner part 2)(Fig. 13) of the head, and cali-
brate them.
Do not rotate the probe: leave it as in Fig. 12 since if it is
located too close to the ignition electrode, the control
box amplifier may be damaged.
Separate the combustion head from the rest of the
burner, Fig. 11.
To do this, proceed as follows:
- remove screw 14) and withdraw the cover 15);
- disengage the articulated coupling 4) from the gradu-
ated sector 5);
- remove screws 2) from the two slide bars 3);
- remove screw 1) and pull the burner back on slide bars
3) by about 100 mm;
- disconnect the wires from the probe and the electrode
and then pull the burner completely off the slide bars,
after removing the split pin from the slide bar 3).
Once this operation has been carried out, fix the flange
9)(Fig. 11) to the boiler plate, interposing the insulating
gasket 6)(Fig. 11) supplied.
Use the 4 screws supplied, with a tightening torque of
35 ÷ 40 Nm, after protecting their thread with anti-seize
products.
The seal between burner and boiler must be airtight.
After the start-up (see Ch. 5.3), check there is no leak-
age of flue gases into the external environment.
6463
Probe
D613
1
2
12
GB
Electrode
D8707
Fig. 12
Fig. 13