3330
7
GB
4.
BURNER OPERATION
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), and they refer to 12.5% CO2
at sea level (1013 hPA) and with light oil and room temperature of 20 °C, with a combustion chamber pres-
sure of 0 mbar.
4.2
RECOMMENDED NOZZLES
Steinen type 60° H;
Danfoss type 60° H;
Delavan type 60° W.
4.3
PUMP PRESSURE
The pump leaves the factory set at 12 bar.
To change it act on pump pressure adjust screw (5, fig. 7, page 5).
TYP
E
Nozzle
Pump
pressure
Burner
output
Combustion head
adjustment
Air damper
adjustment
GPH
Angle
bar
kg/h ± 4%
Set-point
Set-point
370
T1
0.40
60° W
13
1.5
1
1.4
0.50
60° W
12
1.7
1.5
1
0.60
60° W
12
2.1
2
2.2
0.65
60° W
12
2.3
2.5
2
0.75
60° W
12
2.7
3
3
0.75
60° W
14
3.0
3.5
3.2
374
T1
0.75
60° W
12
2.7
1.5
1.2
0.85
60° W
12
3.0
1.5
1.8
1.00
60° W
12
3.7
2
2
1.10
60° W
12
4.1
2.5
2.2
1.25
60° W
12
4.6
3.5
2.8
1.25
60° W
14
5.0
4
3
QUALIFIED PERSONNEL WITH THE RIGHT INSTRUMENTS MUST HANDLE THE BURNER'S FIRST
START-UP
!
WARNING
NOTE:
to achieve CLASS 3 (EN267:1999) emissions, hollow-cone
nozzles have been used.