Combustion Adjustment - Riello G3BF 490T53 Installation, Use & Maintenance Manual

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 concentration in the flue gases, their temperatures and the average temperature of the water
2
in the boiler.
To suit the required appliance output, fit the nozzle then adjust the pump pressure, (the setting of the com-
bustion head for type 489 T53) and the air damper opening in accordance with the following schedule.
Nozzle
GPH Angle
0.50 60°
0.60 60°
0.65 60°
0.75 60°
0.85 60°
1.00 60°
1.00 60°
For 1.00 GPH nozzles it is advisable to use , if possible, full cones.
0.50 60°
0.60 60°
0.65 60°
0.75 60°
0.85 60°
1.00 60°
1.10 60°
For 1.00 - 1.10 GPH nozzles it is advisable to use , if possible, full cones.
0.75 60°
0.85 60°
1.00 60°
1.10 60°
1.25 60°
1.35 60°
1.50 60°
1.50 60°
The settings indicated in the schedule refer to the burner with its metal cover fitted and the combustion
chamber with "zero" depression. These regulations are purely indicative. Each installation however,
has its own unpredictable working conditions: actual nozzle output; positive or negative pressure in
the combustion-chamber, the need of excess air, etc. All these conditions may require a different air-
damper setting.
1
NOZZLES RECOMMENDED: Monarch type R - NS ; Delavan type W - A - E - B
Angle: 60° - in most cases.
80° - in case of flame detachment, during ignitions at low temperatures.
2
PRESSURE:
2136
Pump pressure
1 2
bar
8
8
8
8
8
8
9
8
8
8
8
8
8
8
8
8
8
8
8
8
8
10
Steinen
8 bar : the pump leaves the factory set at this value.
10 bar : maximum pressure for kerosene.
Comb. head
Burner
adjustment
output
kg/h ± 4%
Set-point
1.5
1.7
1.9
2.2
2.5
2.9
3.0
1.5
1.7
1.9
2.2
2.5
2.9
3.4
2.2
2.5
2.9
3.2
3.7
4.0
4.4
5.0
type Q - H ; Danfoss
6
Air damper
adjustment
3
Set-point
2.5
3.0
3.3
3.9
4.2
6.0
8.0
2.2
2.4
2.6
3.0
3.2
3.9
5.2
0 2.8
0.5 3.0
1.5 3.2
2.0 3.5
3.0 4.0
4.0 4.2
5.0 4.9
6.0 6.5
type B - H - S
4