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

Page: 20 / 64

20148124 18 GB
Installation
5.10 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 a pipe wrench (24 mm), passing through the
central opening of the flame stability disc (Fig. 15).
Fit the nozzles on the nozzle holder without the fuel interception
rod.
To calibrate the flow rate range within which the nozzle should
operate, it is necessary to adjust the fuel pressure on the nozzle
return line, according to Tab. I and Tab. J.
5.10.1 Recommended nozzle
• Bergonzo type B5 45°
• Fluidics type N4 45°
For intermediate delivery levels, choose the nozzle with delivery
slightly higher than that effectively required.
Complete range of nozzles:

Bergonzo type B5 45°
350 - 375 - 400 - 425 - 450 - 475 - 500 - 525 - 550 - 575 -
600 - 650 - 700 - 750. Normally, atomisation angles of 45°
are recommended.
Tab. I

Fluidics type N4 45°:
375 - 400 - 450 - 500 - 550 - 600 - 650 - 700 - 750. Normally,
atomisation angles of 45° are recommended.
Tab. J
ATTENTION
It is advisable to replace the nozzle once a year
during periodical maintenance.
CAUTION
The use of nozzles other than those specified by
Riello S.p.A. 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 objects.
The manufacturing Company shall not be liable
for any such damage arising from non-
observance of the requirements contained in this
manual.
ATTENTION

Do not use any sealing products such as:
gaskets, tape or sealants.

Be careful to avoid damaging the nozzle
sealing seat.

The nozzle must be screwed into place tightly
but not to the maximum torque value
provided by the wrench.
40 mm
D9248
Fig. 15
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