Riello P 140 P/NA, Installation, Use And Maintenance Instructions

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4499
8
GB
5.2 BURNER ADJUSTMENTS
The installer should carry out these adjustments when commissioning the burner.
5.2.1 ADJUSTMENT OF FUEL MAXIMUM OUTPUT
For each nozzle rated flow, the real oil flow varies according to:
1) oil pressure at the nozzle inlet (capacity increases when the pressure does, shifting from low to
high flame);
2) oil density;
3) air steam pressure at the nozzle inlet (oil capacity increases when the air/steam pressure de-
creases);
when the air/steam pressure decreases 1 bar, this causes an approx. 10% increase in the oil
flow and vice versa.
To avoid variations in oil flow during operation, there should be a stable air/steam spraying
pressure. Even a minor pressure variation can cause important variations in the sprayed oil de-
livery.
4) oil viscosity (oil output increases when viscosity is lower)
when viscosity decreases 10 cSt, this causes an approx.10% increase in the oil flow and vice
versa.
NOTE: sprayed oil viscosity diminishes when temperature increases.
IMPORTANT: check every fuel nozzle for correct combustion calibration.
NOZZLE SELECTION
CODE
Nozzle
15 AG 45°
Viscosity
at nozzle
Oil density
Oil flow
Kg/h
Air/steam
consumption in kg/h
Recommended
air/steam
pressure
cSt
kg/hm
3
6 bar 5 bar 4 bar 3 bar 2 bar
High
flame
Low
flame
bar
3045
000
60
5 850 112 94 75 60 32 2.5 8.4 2
10 875 95 80 60 41 20 5.9 13.9 3
20 900 75 60 42 25 N/A* 10 20 4
30 925 68 55 36 20 N/A* 11.3 21.7 4
3
0450
01
70
5 850 130 110 90 70 36 2.9 9.9 2
10 875 111 95 78 48 25 6.8 16 3
20 900 88 70 50 30 N/A* 11.9 23 4
30 925 80 64 44 24 N/A* 13.2 25.4 4
304
500
2
80
5 850 150 130 105 80 40 3.3 11.3 2
10 875 127 108 85 55 30 7.8 18.3 3
20 900 100 80 55 35 N/A* 13.6 26.2 4
30 925 91 73 51 30 N/A* 15 28.9 4
3045
003
100
5 850 187 158 130 100 50 4.2 14 2
10 875 158 135 100 70 35 9.8 22.8 3
20 900 126 105 70 40 N/A* 17 32.7 4
30 925 114 91 65 35 N/A* 18.8 34.2 4
30
450
04
130
5 850 243 200 170 130 60 5.4 18.3 2
10 875 206 173 130 95 40 12.7 29.7 3
20 900 163 131 90 55 N/A* 22 42.6 4
30 925 148 118 82 45 N/A* 24.4 47 4
304
5005 160
5 850 299 260 210 160 80 6.7 22.5 2
10 875 253 215 170 115 50 15.7 36.5 3
20 900 201 161 115 65 N/A* 27.1 52.4 4
30 925 182 145 102 58 N/A* 30 57.9 4
3
045
006
200
5 850 374 330 260 215 105 8.3 28.1 2
10 875 317 270 215 145 60 19.6 45.7 3
20 900 252 203 140 85 N/A* 33.9 65.5 4
30 925 228 182 120 70 N/A* 37.5 72.4 4
30
4500
7
225
5 850 421 365 285 220 110 9.4 31.7 2
10 875 357 311 240 160 70 22.1 51.4 3
20 900 280 225 156 100 N/A* 38.2 73.7 4
30 925 256 205 141 60 N/A* 42.2 81.4 4
Fig. 9