Nozzle Installation; Recommended Nozzle - Riello RL 800/M TC FS2 Instrucciones De Uso

5.9

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 Riello in the Instruction
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 Riello S.p.A. and inadequate regular main-
tenance may result into emission limits non-
conforming to the values set forth by the reg-
ulations in force, and in extremely serious cas-
es, into potential hazards to people and
objects.
CAUTION
The manufacturing company shall not be lia-
ble for any such damage arising from nonob-
servance of the requirements contained in this
manual.
Fit the nozzle with the box spanner, fitting the spanner through
the central hole in the flame stability disk (Fig. 13).
Nozzles with no fuel shutoff needle must be fitted on the nozzle
holder.
To set the delivery range within which the nozzle must work, noz-
zle return line fuel pressure must be adjusted according to
Tab. A and Tab. B.
 Do not use any sealing products such as gas-
kets, sealing compound, or tape.
 Be careful to avoid damaging the nozzle seal-
WARNING ing seat.
 The nozzles must be screwed into place
tightly but not to the maximum torque value
provided by the wrench.
20034064
Installation
5.9.1

Recommended nozzle

• Bergonzo type B5 45°
• Fluidics type N4 45°
Intermediate flow rates may be obtained by choosing the nozzle
with a nominal flow rate slightly higher than that actually required.
Complete range of nozzles:
 Bergonzo type B5 45°:
350 - 375 - 400 - 425 - 450 - 475 - 500 - 525 - 550 - 575 -
600 - 650 - 700 - 750. We normally recommend 45° angles
of pulverisation.
kg/h
375
550
650
750
 Fluidics type N4 45°:
375 - 400 - 450 - 500 - 550 - 600 - 650 - 700 - 750. We nor-
mally recommend 45° angles of pulverisation.
kg/h
375
D11105
550
Fig. 13
650
750
16 GB
Delivery Return
pressure pressure
bar bar
20 11.5
20 17
20 10
20 17
20 8
20 16.5
25 11.5
25 20.5
Delivery Return
pressure pressure
bar bar
20 12
20 18.5
20 7
20 16
20 6
20 17
25 17
25 22
kg/h kW
147 1750
295 3500
170 2000
421 5000
180 2150
565 6650
227 2700
675 8000
Tab. A
kg/h kW
147 1750
295 3500
170 2000
421 5000
180 2150
565 6650
227 2700
675 8000
Tab. B