Riello 1311 T2, Modulating Operation, Page: 20 / 60

20040170
18
GB
Installation
5.7 Access to head internal part
In order to reach inside the combustion head (Fig. 13) proceed as
follows:

disconnect the derivation unit socket 1) and the QRI photo-
cell 2);

disconnect the leverage of the head motor drive 3);

remove the 4 fixing screws 4);

open the burner on the hinge;

disconnect the cable of the pilot electrode 5);

release the ignition pilot fitting 6);

remove the screw/gas pressure socket 7) of the head;

disconnect the light oil pipes unscrewing the two pipe fit-
tings 8);

remove the oil lance lockout screw 9);

release the oil lance from the combustion head 10);

pull out the inner part of the head 11).
5.8 Electrode position
Be careful as some drops of fuel may leak out dur-
ing this phase.
1
8
6
3
7
11
4
2 5
9
10
10
9
Fig. 13
D11309
WARNING
Place the electrode on the ignition pilot observing
the dimensions specified in Fig. 14.
Fig. 14
18.5
0
- 2
71.5
± 1
Diffuser
Electrode
D9218