Riello RLS 800/EV MX, Installation, Use And Maintenance Instructions

Page: 20 / 88

20010950
18
GB
Installation
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.
Fit the nozzle with the box spanner, fitting the spanner through
the central hole in the flame stability disk (Fig. 15).
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.
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.
Tab. A

Fluidics type N4 45°:
375 - 400 - 450 - 500 - 550 - 600 - 650 - 700 - 750. We nor-
mally recommend 45° angles of pulverisation.
Tab. B
WARNING
It is advisable to replace nozzles every year
during regular maintenance operations.
CAUTION
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.
The manufacturing company shall not be lia-
ble for any such damage arising from nonob-
servance of the requirements contained in this
manual.
WARNING

Do not use any sealing products such as gas-
kets, sealing compound, or tape.

Be careful to avoid damaging the nozzle seal-
ing seat.

The nozzles must be screwed into place
tightly but not to the maximum torque value
provided by the wrench.
40 mm
Fig. 15
D9248
kg/h
Delivery
pressure
bar
Return
pressure
bar
kg/h kW
375
20 11.5 147 1750
20 17 295 3500
550
20 10 170 2000
20 17 421 5000
650
20 8 180 2150
20 16.5 565 6650
750
25 11.5 227 2700
25 20.5 675 8000
kg/h
Delivery
pressure
bar
Return
pressure
bar
kg/h kW
375
20 12 147 1750
20 18.5 295 3500
550
20 7 170 2000
20 16 421 5000
650
20 6 180 2150
20 17 565 6650
750
25 17 227 2700
25 22 675 8000