2623
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% CO
2
at sea level and with light oil and room temperature of 20 °C.
4.2
RECOMMENDED NOZZLES:
Monarch type R
Delavan type W
(up to 3,00 GPH)
Delavan type B
(over 3,00 GPH)
Steinen type S;
Danfoss
type
S.
TO FIT NOZZLE CARRY OUT THE FOLLOW-
ING ACTIONS, (see fig. 12)
➤
Remove nozzle-holder assembly (1) after
loosing screws (2) and nut (3), remove the
small cables (4) from the control box and the
photoresistance (5).
➤
Withdraw the small cables (4) from the elec-
trodes, remove the diffuser disc-holder as-
sembly (8) from the nozzle-holder assembly
(1) after loosing screw (3, fig. 13, page 7).
➤
Screw the nozzle (9) correctly and tighten it as
shown in fig. 12.
Attention
During the reassembly of the nozzle-holder as-
sembly screw the nut (3) as shown in the figure
below.
Nozzle
Start delaying
device pressure
Pump
pressure
Burner
output
Combustion
head
adjustment
Air damper adjustment
Low-flame
High-flame
Low-flame
High-flame
GPH
Angle
bar
bar
kg/h ± 4%
Set-point
Set-point
Set-point
3.00
60°
9
15
13.5
0
0.4
1.3
3.50
60°
9
15
15.7
0
0.5
2.0
4.00
60°
9
15
18.0
2
0.7
2.5
4.50
60°
9
15
20.2
4
0.8
3.0
5.00
60°
9
15
22.4
6
0.9
3.7
5.50
60°
9
15
24.7
8
1.1
5.8
6.00
60°
9
14
26.0
10
1.3
6.0
SW1007
Fig. 12
3
TIGHTEN WITHOUT MOVING
BACKWARDS TO THE END
D5684
