2330
7
GB
Fig. 12
➤
Remove nozzle-holder assembly (1) after loos-
ing screws (2) and nut (3), remove the small ca-
b l e s ( 4 ) f r o m t h e c o n t r o l b o x a n d t h e
photoresistance (5).
➤
Withdraw the small cables (4) from the elec-
trodes, remove the diffuser disc-holder assem-
bly (8) from the nozzle-holder assembly (1) after
loosing screw (3, fig. 13).
➤
Screw the nozzle (9) correctly and tighten it
as shown in figure.
ATTENTION
During the reassembly of the nozzle-holder as-
sembly screw the nut (3) as shown in the figure
below.
4.3
COMBUSTION HEAD SETTING
(See fig. 12)
It depends on the output of the burner and is car-
ried out by rotating clockwise or counterclockwise
the setting screw (6) until the set-point marked on
the regulating rod (7) is level with the outside
plane of the nozzle-holder assembly (1).
➤
In the sketch the combustion head is set for an
output of 1.50 GPH at 15 bar. The set-point 3 of the regulating rod (7) is at the same level with the outside
plane of the nozzle-holder assembly (1) as shown in the schedule.
4.4
ELECTRODES ADJUSTMENT (
see fig. 13)
S7237
B
Fig. 12
B
3
TIGHTEN WITHOUT MOVING
BACKWARDS TO THE END
D5684
Lean the diffuser disc-holder as-
sembly (1) on the nozzle-holder
(2) and lock it by screw (3). For
prospective adjustments loosen
screw (4) and move the elec-
trodes assembly (5).
ATTENTION
To have access to the electrodes
carry out operation as described in
chapter 4.2 (page 6) “RECOM-
MENDED NOZZLES”.
D5342
4 – 5
mm
4.5
– 0.5 mm
0
MEASURES MUST BE
RESPECTED
WARNING
Fig. 13
4
5
1
2
3
