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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
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.
Nozzle
Pump pressure
1
GPH
Angle
0.30
80°
0.40
60°
0.50
60°
0.60
60°
0.65
60°
0.50
60°
0.60
60°
0.65
60°
0.75
60°
0.85
60°
1
RECOMMENDED NOZZLES
Delavan type W - B ;
MAINTENANCE POSITION
THE ACCESSIBILITY TO THE NOZZLE, THE DIFFUSER DISC AND THE ELECTRODES IS MADE EASY
IN 2 WAYS:
A
Fig. 12 – Remove the burner out of the boiler, after loosing the fixing nut to the flange.
– Hook the burner to the flange (1), by removing the blast tube (2) after loosing the fixing screws (3).
– Remove the small cables (4) from the electrodes and the diffuser disc-holder assembly (5) from the
nozzle-holder assembly after loosing its fixing screw (3, fig. 11, page 5).
– Screw the nozzle (6) correctly and tighten
it as shown in the figure.
2300
Burner
output
2
bar
kg/h ± 4%
13
1.2
12
1.25
12
1.7
12
2.0
12.5
2.3
13
1.8
12
2.0
12,5
2.4
12
2.8
12
3.2
Danfoss type S - B; Monarch type R;
Fig. 12
S7225
Combustion
head adjustment
Set-point
1
1.3
1,6
2
2
1
1.5
1.7
2
2
Steinen type S - Q.
6
GB
Air damper
adjustment
3
Set-point
0.1
0.2
0.6
1.6
3.5
0.7
1.4
1.9
3.3
6.0
S7226
2
4
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