Riello RDB3 CF 489T50 - Combustion Adjustment; Nozzles Recommended; 4 Working

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4. WORKING
4.1 COMBUSTION ADJUSTMENT
In conformity with Efficiency Directive 92/42/EEC the application of the burner on the boiler, adjustment and
testing must be carried out observing the instruction manual of the boiler, including verification of the CO and
CO
2
concentration in the flue gases, their temperatures and the average temperature of the water in the boiler.
To suit the required appliance output, choose the proper nozzle and adjust the pump pressure, the setting of the
combustion head, and the air damper opening in accordance with the following schedule.
The values shown in the table are measured on a CEN boiler (as per EN 267). They refer to 12.5% CO
2
at sea
level and with fuel and room temperature of 20°C.
4.2 NOZZLES RECOMMENDED: Hago type ES - B ; Delavan type W - B;
Steinen type S ; Danfoss type S.
Nozzle
Pump
pressure
Burner
output
Combustion head
adjustment
Air damper
adjustment
GPH
Angle
bar kg/h ± 4%
Set-point Set-point
489 T50
GAS OIL
0.75 60° 12 3.0 0.5 1.0
0.85 60° 12 3.4 0.5 1.4
1.00 60° 12 4.0 1.5 2.0
1.10 60° 12 4.4 3.0 2.6
1.25 60° 12 5.0 4.5 3.0
1.35 60° 13 5.6 6.0 4.0
KEROSENE
1.10 60° 7 3.08 0.0 1.1
1.25 60° 8 3.74 0.0 1.4
1.35 60° 8 4.04 0.5 1.9
1.50 60° 8 4.49 1.5 2.2
1.65 60° 8 4.93 3.0 2.5
1.75 60° 8 5.23 4.5 3.1
1.75 60° 10 5.85 6.0 4.0
488 T50
GAS OIL
1.10 60° 12 4.4 2.0 2.8
1.25 60° 12 5.0 2.5 3.4
1.35 60° 12 5.4 2.5 3.7
1.50 60° 12 6.0 3.0 4.3
1.65 60° 12 6.6 3.0 5.0
1.75 60° 12 7.0 3.5 5.5
2.00 60° 12 8.0 4.0 7.5
2.25 60° 12 9.0 5.0 8.3
KEROSENE
1.65 60° 7 4.65 2.0 2.8
1.75 60° 8 5.23 2.5 3.1
2.00 60° 8 5.98 2.5 3.9
2.25 60° 8 6.73 3.0 5.1
2.50 60° 8 7.48 3.5 5.9
2.75 60° 8 8.22 4.0 7.4
3.00 60° 9 9.51 5.0 8.5