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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 pipes by unscrewing the two 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 electrode
Place the electrode on the ignition pilot observing
the dimensions specified in Fig. 14.
WARNING
Installation
8
7
D8364
0
18.5
- 2
Diffuser
17
GB
3
3
1
5
6
2
4
D9337
3
71.5
± 1
Electrode
1
2
5
4
1
Fig. 12
1
Fig. 13
D9218
Fig. 14
20010305
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