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COMBUSTION ADJUSTMENT
In conformity with Efficiency Directive 92/42/EEC the application of the burner on the boiler, adjust-
ment and testing must be carried out observing the instruction manual of the boiler, including verifica-
tion of the CO and CO
temperature of the water in the boiler.
To suit the required appliance output, fit the nozzle, the settings of the combustion head and the air
damper opening in accordance with the following schedule.
Nozzle
1
GPH
Angle
1
1.75
60°
2.00
60°
2.25
60°
2.50
60°
3.00
60°
3.50
60°
4.00
60° / 45°
4.50
60° / 45°
1
NOZZLES RECOMMENDED: Monarch type R - PLP ; Delavan type B - W
Angle :
2
COMBUSTION HEAD SETTING : This is done when fitting the nozzle, with the blast tube
Terminal plane of the blast tube
D5284
Blast tube
1718
concentration in the flue gases, their temperatures and the average
2
Pump
Burner
pressure
output
kg/h ± 4%
bar
st
nd
st
2
1
8
14
6.0
8
14
6.9
8
14
7.8
8
14
8.6
8
14
10.4
8
14
12.1
8
14
13.8
8
13
15.5
Steinen type S - SS ; Danfoss type S
60° : in most cases. Particularly suited to avoid flame-detach-
ment during ignition.
45° : for narrow and long combustion-chambers.
2
5
3
1
Regulating rod
Shutter
Comb. head
adjustment
2
nd
2
Set-point
8.2
1
9.3
1.5
10.5
2
11.7
2.5
14.0
3.5
16.3
4
18.7
5
20.2
6
removed. It depends on the output of the burner and is car-
ried out by rotating the regulating rod, till the terminal plane
of the blast tube is level with the set-point, as indicated in
the schedule.
In the sketch on the left, the combustion
head is set for an output of 3.00 GPH at
8/14 bar, while the shutter is level with
set-point 3.5, as required by the above
schedule.
6
GB
Air damper adjustment
st
nd
1
stage
2
Set-point
Set-point
2.3
2.5
2.7
2.9
3.2
3.5
4.5
5.0
3
stage
2.6
3.0
3.5
3.8
4.3
5.0
6.5
8.0
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