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COMBUSTION HEAD ADJUSTMENT
Adjustments can be made to the burner, when it is still open for installation (see page 17, FIXING TO THE BOILER).
NOZZLE CHOICE
Spray angle:
- usually 60°;
- for narrow combustion chambers 45°.
POSITION OF THE
IGNITION ELECTRODES
D1949
SETTING OF GAS DISTRIBUTOR
The burner leaves the factory setted for burning
natural gas (see the drawing on the right).
• Each hole (F) completely opened.
To burn LPG fit the kit as detailed below:
• Fit 6 nozzles with 3 mm diameter outlets to
holes (F).
Pump
pressure
1°
bar
GPH
kg/h
12
2,50
9,7
10
3,00
10,8
12
3,00
11,7
10
3,50
12,6
12
3,50
10
4,00
14,3
12
4,00
15,8
10
4,50
16,4
12
4,50
10
5,00
18,2
12
5,00
20,4
10
5,50
19,7
1st stage nozzle
22
NOZZLES
2°
GPH
kg/h
2,50
9,7
3,00
10,8
3,00
11,7
3,50
12,6
14
3,50
14
4,00
14,3
4,00
15,8
4,50
16,4
18
4,50
18
5,00
18,2
5,00
20,4
5,50
19,7
2nd stage nozzle
D1972
1° + 2°
kg/h
19,4
21,6
23,4
25,2
28
28,6
31,6
32,8
36
36,4
40,8
39,4
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