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Installation
4
4.6
Combustion head adjustment
At this point of the installation, the combustion head is fixed
to the boiler as shown in Fig. 15. Its adjustment is therefore
particularly easy, which depends solely on the maximum out-
put of the burner.
This value must be set before adjusting the combustion head.
Find the air adjustment notch on the diagram of Fig. 17.
Air adjustment
Rotate the screw 4) until the notch you have found corre-
sponds with the front surface 5) of the flange.
Important
To facilitate adjustment, loosen the screw 6),
adjust and then lock.
CAUTION
Example
Burner output = 500 Mcal/h.
From the diagram of Fig. 17, it can be seen that the air
adjustment for this power is made on notch 7.5.
NOTE
If the chamber pressure is equal to 0 mbar, the air adjustment
is made referring to the dotted line of diagram Fig. 17.
Fig. 17
Note
The adjustments indicated can be modified during the initial start-up.
20022445
6
D3909
Maximum burner output
15
GB
4
D8151
5
Fig. 16
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