2611
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, adjust the pump pressure 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
TYP
E
Nozzle
Pump pressure
Burner output
Air damper adjustment
GPH
Angle
bar
kg/h ± 4%
Set-point
367T
1
0.40
60°
11
1.4
1.0
0.50
60°
12
1.9
1.8
0.60
60°
12
2.3
2.8
368T
1
0.50
60°
12
1.9
1.5
0.60
60°
12
2.3
2.2
0.65
60°
12
2.5
2.7
0.75
60°
13
3.0
3.9
ACCESSIBILITY TO THE NOZZLE, THE DIFFUSER
DISC AND THE ELECTRODES, (see fig. 10)
➤
Remove the burner from the boiler after loosening the
flange anchor nut.
➤
For the codes 3736521 and 3736720, hook the burn-
er on to the flange (1).
➤
Loosen the bolts (3) and remove the blast tube (2) by
rotating (the fitting is bayonet type).
➤
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 7).
➤
Screw the nozzle (6) and tighten it as shown in the
figure
.
WARNING
In the event of maintenance
made to the nozzle-holder
assembly, screw the nut (
C
)
as shown in the figure to the
right.
C
TIGHTEN WITHOUT MOVING
BACKWARDS TO THE END
D5684
5
E9121
1
4
Fig. 10
3
2
6
