1955
6
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 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).
They refer to 12.5% CO2 at sea level and with light oil and room temperature of 20 °C
.
4.2
RECOMMENDED NOZZLES:
Delavan type W - B ;
Danfoss type S - B
Monarch type R
;
Steinen type S - Q
MAINTENANCE POSITION
THE ACCESSIBILITY TO THE NOZZLE, THE
DIFFUSER DISC AND THE ELECTRODES IS
MADE EASY IN 2 WAYS:
Fig. 11
➤
Remove the burner out of the boiler, after loos-
ing the fixing nut to the flange.
➤
Hook the burner to the flange (1), by remov-
ing the blast tube (2) after loosing the fixing
screws (3).
➤
Remove the small cables (4) from the elec-
trodes and the diffuser disc-holder assembly (5)
from the nozzle-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.
TYPE
Nozzle
Pump pressure
Burner
output
Combustion
head adjustment
Air damper
adjustment
GPH
Angle
bar
kg/h ± 4%
Set-point
Set-point
358
T1
0.30
80°
13
1.2
1
0.1
0.40
60°
12
1.5
1.3
0.2
0.50
60°
12
1.9
1.6
0.6
0.60
60°
12
2.3
2
2.4
360
T1
0.50
60°
11
1.8
1
0.7
0.60
60°
12
2.3
1.5
1.8
0.65
60°
12
2.5
1.7
2.7
0.75
60°
12
2.9
2
4.5
0.85
60°
11.5
3.2
2
6.7
A
Fig. 11
2
5
4
3
6
1
S7481
A
