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5.11
Nozzle installation
The burner complies with the emission requirements of the EN
267 standard.
In order to guarantee that emissions do not vary, recommended
and/or alternative nozzles specified by the Manufacturer in the In-
struction and warning booklet should be used.
It is advisable to replace nozzles every year
during regular maintenance operations.
WARNING
The use of nozzles other than those specified
by the Manufacturer and inadequate regular
maintenance may result into emission limits
non-conforming to the values set forth by the
regulations in force, and in extremely serious
cases, into potential hazards to people and ob-
jects.
CAUTION
The manufacturing company shall not be lia-
ble for any such damage arising from non-ob-
servance of the requirements contained in this
manual.
Fit the nozzle with a pipe wrench (24 mm), passing through the
central opening of the flame stability disc (Fig. 21).
D8833
Fit the nozzles on the nozzle holder without the fuel interception
rod.
To calibrate the flow rate range within which the nozzle should
operate, adjust the fuel pressure on the nozzle return line, ac-
cording to and Tab. M.
Do not use any sealing products such as:
gaskets, sealing compound, or tape.
Be careful to avoid damaging the nozzle seal-
WARNING
ing seat.
The nozzle must be screwed into place tightly
but not to the maximum torque value pro-
vided by the wrench.
Installation
5.11.1 Recommended nozzle
•
Fluidics type N2 45°
Alternatively:
•
Bergonzo type B5 45° SA
Complete range of nozzles:
Bergonzo type B5 45°
150 - 200 - 225 - 250 - 275 - 300 - 325 - 350 - 375 - 400 -
425 - 450 - 475 - 500 - 525 - 550 - 575 - 600.
Fluidics type N1 45°
160 - 180 - 200 - 225 - 250 - 275 - 300 - 330 - 360 - 400 -
450 - 500 - 550 - 600.
Fluidics type N2 45°
160 - 180 - 200 - 225 - 250 - 275 - 300 - 330 - 360 - 400 -
450 - 500 - 550 - 600.
2 mm
Fig. 21
25
GB
Pressione
Pressione
kg/h
mandata
ritorno
bar
bar
21
13
150
21
19
22
8,5
200
22
17,5
20
300
20
17,5
20
6,5
375
20
15,5
20
7,5
425
20
17
24
250
25
15,5
24
7,5
360
25
14
24
8,5
400
25
15
24
450
25,5
16
20
9,5
300
20
14
20
450
20
14
20
9,5
575
20
17
kg/h
kW
51
600
106
1250
67
800
150
1800
7
100
1200
257
3000
148
1750
305
3600
68
1950
344
4100
9
94
1120
210
2500
116
1380
260
3090
153
1820
355
4220
8
164
1950
425
5050
125
1500
250
3000
8
134
1600
380
4550
193
2300
510
6070
Tab. M
20182250
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