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4.
WORKING
4.1 COMBUSTION ADJUSTMENT
In conformity with EN267 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
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.
Values in the table refer to 12% CO
Nozzle
1
st
GPH
Angle
1
0.40
80°
0.50
60° / 80°
0.60
60°
0.65
60° / 45°
0.75
60° / 45°
0.85
45°
1.00
45°
1.10
45°
1.25
45°
1
RECOMMENDED NOZZLES
Monarch type R, Delavan type W - E, Steinen type Q, Danfoss type S, Satronic type S.
MAINTENANCE POSITION
THE ACCESSIBILITY TO THE NOZZLE, THE DIFFUSER DISC AND THE ELECTRODES IS MADE
EASY IN 2 WAYS:
A
Fig. 11 – 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 noz-
zle-holder assembly after loosing its fixing screw (3, Fig. 13, page 7).
– Screw the nozzle (6) correctly and tighten
it as shown in the figure.
2305
and to sea level.
2
Pump pressure
bar
nd
stage 2
stage 1
9
14
9
14
9
14
9
14
9
14
9
14
9
14
9
14
9
13
S7184
Burner output
kg/h ± 4%
st
nd
stage 2
stage
1.3
1.7
1.7
2.1
2.0
2.5
2.2
2.7
2.5
3.1
2.8
3.5
3.3
4.2
3.7
4.6
4.2
5.0
Fig. 11
6
GB
concentration in the flue
2
Comb. head
Air damper
adjustment
adjustment
2
st
1
stage 2
Set-point
Set-point
0.3
0
1
0
1.3
0.1
1.5
0.2
2
0.4
3
0.5
4
0.7
5
0.8
6
1
nd
stage
Set-point
0.6
0.9
1.3
1.7
2.2
2.7
3.8
4
6
S7197
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