Minimum Furnace Dimensions - Riello RL 190/M Installation, Use And Maintenance Instructions

2 CORRECTED BURNER AIR PRESSURE ACCORDING TO ALTITUDE
m a.s.l.
Rated Pressure
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
Average barometric
pressure (20°C)
Average barometric
pressure (68°F)
3.7

Minimum furnace dimensions

The firing rates were set in relation to certified test boilers.
Fig. 4 indicates the diameter and length of the test combustion
chamber.
Example
Output 2579 MBtu/hr: diameter 24 inch - length 6.6 ft.
Technical description of the burner
0 100
ft a.s.l 0 328
0.49 0.50
0.99 1.00
1.48 1.50
1.97 2.00
2.47 2.50
2.96 3.00
3.46 3.50
3.95 4.00
4.44 4.50
4.94 5.00
5.43 5.50
5.92 6.00
6.42 6.50
6.91 7.00
7.40 7.50
7.90 8.00
8.39 8.50
8.88 9.00
9.38 9.50
9.87 10.00
mbar 1013 1000
"w.c. 399 394
Altitude
305 610 915
1000 2000 3000
0.51 0.53 0.55
1.02 1.06 1.10
1.53 1.59 1.65
2.05 2.12 2.20
2.56 2.65 2.75
3.07 3.18 3.30
3.58 3.71 3.85
4.09 4.24 4.40
4.60 4.77 4.95
5.12 5.30 5.51
5.63 5.83 6.06
6.14 6.36 6.61
6.65 6.89 7.16
7.16 7.42 7.71
7.67 7.96 8.26
8.18 8.49 8.81
8.70 9.02 9.36
9.21 9.55 9.91
9.72 10.08 10.46
10.23 10.61 11.01
977.4 942.8 908.2
385 371 358
D2919
9 GB
1220 1525 1830
4000 5000 6000
0.57 0.59 0.62
1.14 1.19 1.23
1.71 1.78 1.85
2.28 2.37 2.46
2.85 2.96 3.08
3.43 3.56 3.70
4.00 4.15 4.31
4.57 4.74 4.93
5.14 5.33 5.54
5.71 5.93 6.16
6.28 6.52 6.77
6.85 7.11 7.39
7.42 7.71 8.01
7.99 8.30 8.62
8.56 8.89 9.24
9.13 9.48 9.85
9.71 10.08 10.47
10.28 10.67 11.09
10.85 11.26 11.70
11.42 11.86 12.32
875.8 843.5 811.85
345 332 320
Diameter (inches)
2135 2440
7000 8000
0.64 0.67
1.28 1.34
1.92 2.01
2.56 2.67
3.21 3.34
3.85 4.01
4.49 4.68
5.13 5.35
5.77 6.02
6.41 6.69
7.05 7.35
7.69 8.02
8.34 8.69
8.98 9.36
9.62 10.03
10.26 10.70
10.90 11.37
11.54 12.04
12.18 12.70
12.82 13.37
779.8 747.8
307 294
Fig. 4
20051197