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5.7
Securing the burner to the boiler
Prepare an adequate system of hoisting by hooking onto the
rings 3)(Fig. 12).
Slip the thermal protection (standard equipment) onto the
blast tube 4)(Fig. 12).
Place entire burner on the boiler hole arranged previously,
(see Fig. 11), and fasten with the screws given as standard
equipment.
The burner-boiler seal must be airtight.
WARNING
5.8
Accessibility to the interior of the combustion head
In order to reach inside the combustion head (Fig. 13) proceed as
follows:
disconnect the electrical wiring related to oil pump/servomo-
tor, air servomotor and gas pressure switch;
disconnect the leverages related to air damper and head
movement;
unscrew the 4 x fixing screws 1);
release the cable of the electrode 2);
disconnect
the
oil
connectors 3).
While unscrewing, some fuel may leak out.
WARNING
Release the ignition pilot retainer;
remove the screw/gas pressure test point 6) of the combus-
tion head;
unscrew the under part of the elbow until it comes free of its
slot;
extract the internal part 5) of the combustion head.
5.9
Position of electrodes
Place the electrode on the ignition pilot observing
the dimensions specified in Fig. 14.
WARNING
20010309
pipes
by
unscrewing
Installation
D3507
1
2
the
two
2
D9424
0
18.5
- 2
Diffuser
18
GB
4
5
3
7
6
71.5
± 1
Electrode
Fig. 12
8
Fig. 13
D9218
Fig. 14
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