Nozzle Installation; Choice Of Nozzles For 1St And 2Nd Stage; Nozzle Assembly - Riello RLS 100 Installation, Use And Maintenance Instructions

5.9

Nozzle installation

5.9.1 Choice of nozzles for 1
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 maintenance
may result into emission limits non-conforming to
the values set forth by the regulations in force, and
CAUTION
in extremely serious cases, into potential hazards
to people and objects.
The manufacturing company shall not be liable for
any such damage arising from nonobservance of
the requirements contained in this manual.
Both nozzles must be chosen from among those listed in Tab. H.
The first nozzle determines the delivery of the burner in the 1st
stage.
The second nozzle works together with the 1st nozzle to deter-
mine the delivery of the burner in the 2nd stage.
The deliveries of the 1st and 2nd stages must be contained within
the value range indicated on page 9.
Use nozzles with a 60° spray angle at the recommended pres-
sure of 12 bar.
The two nozzles usually have equal deliveries.
GPH
10 bar
5.00 19.2
5.50 21.1
6.00 23.1
6.50 25.0
7.00 26.9
7.50 28.8
8.00 30.8
8.30 31.9
8.50 32.7
9.00 34.6
9.50 36.5
10.0 38.4
10.5 40.4
11.0 42.3
12.0 46.1
12.3 47.3
13.0 50.0
13.8 53.1
14.0 53.8
15.0 57.7
15.3 58.8
16.0 61.5
17.0 65.4
st nd
and 2 stage
kg/h
12 bar 14 bar 12 bar
21.2 23.1 251.4
23.3 25.4 276.3
25.5 27.7 302.4
27.6 30.0 327.3
29.7 32.3 352.3
31.8 34.6 377.2
33.9 36.9 402.1
35.2 38.3 417.5
36.1 39.2 428.2
38.2 41.5 453.1
40.3 43.8 478.0
42.4 46.1 502.9
44.6 48.4 529.0
46.7 50.7
553.9
50.9 55.3 603.7
52.2 56.7 619.1
55.1 59.9 653.5
58.5 63.3 693.8
59.4 64.5 704.5
63.6 69.2 754.3
64.9 70.5 769.7
67.9 73.8 805.3
72.1 78.4 855.1
Installation
5.9.2

Nozzle assembly

 Remove screw 1)(Fig. 11) and extract the internal part 2).
 Fit two nozzles with the box spanner (16 mm) 1)(Fig. 12),
after having removed the plastic plugs 2).
 Fitting the spanner through the central hole in the flame sta-
bility disk or loosen screws 1)(Fig. 13).
 Remove disk 2)(Fig. 13) and replace the nozzles using the
wrench 3).
Do not use any sealing products such as gaskets,
sealing compound, or tape.
Be careful to avoid damaging the nozzle sealing
seat. The nozzles must be screwed into place
WARNING
tightly but not to the maximum torque value pro-
vided by the wrench.
kW
Tab. H
17
GB
D1122
D1146
D1147
Fig. 11
Fig. 12
Fig. 13
20033295