3367
7
GB
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 by 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), and they refer to 12.5 % CO
2
at sea level and with light oil and room temperature of 20 °C.
4.2
RECOMMENDED NOZZLES
Delavan tipo W - B
Steinen tipo
Q
Danfoss tipo S
N.B.:
If necessary the 1
st
stage nozzle can have an output exceeding 50 % of the total output.
4.3
ELECTRODES ADJUSTMENT
Nozzles
Pressure
pump
Burner output
Combustion
head adjust-
ment
Air damper adjust-
ment
GPH
Angle
kg/h ± 4%
1
st
stage
2
nd
stage
1
st
stage
2
nd
stage
bar
1
st
stage 2
nd
stage
Set-point
Set-point
Set-point
2.00
1.00
60°
12
8.0
12.4
0
0.25
2.1
2.00
2.00
60°
12
8.0
16.4
3
0.15
3.0
2.50
2.50
60°
12
10.3
20.5
6
0.3
4.4
3.00
3.00
60°
12.5
12.6
25.0
8
0.6
6.0
QUALIFIED PERSONNEL WITH THE RIGHT INSTRUMENTS MUST HANDLE THE BURNER'S START-UP.
!
WARNING
1
1
3
mm
4
.5
–
0
.5
m
m
0
D5406
2
MEASURES MUST BE RESPECTED.
For prospective adjustments loosen
screws (1) and move the electrodes as-
sembly (2), (see fig. 12).
To have access to the electrodes carry
out operation as described in chapter
4.4
“MAINTENANCE POSITION”
.
WARNING:
Fig. 12
