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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. 14. It is therefore especially
easy to adjust, and this adjustment depends only on the max-
imum output of the burner.
Three adjustments of the head are foreseen:
the external air R1 one;
the central air R2 one;
the gas R3 one.
In the diagram of Fig. 16, find the notch at which to adjust
both air and central gas/air.
External air adjustment R1
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
Central air adjustment R2
Rotate the shutter 8) until the notch you have found corre-
sponds with the screw 1). Block screws 1) and 7).
Gas adjustment R3
Loosen the screws 1) and 7) and rotate the ring nut 2) until
the notch you have found corresponds with the index 3).
Example
Burner output = 400 kW.
The diagram of Fig. 16 shows that the adjustments for this
potential are:
external air:
R1 = notch 5,3;
central air:
R1 = notch 2.7;
gas:
R3 = notch 0.7.
Fig. 16
Note
The adjustments indicated can be modified during the initial start-up.
5
2
(R 3 )
Fig. 15
Maximum burner output
3
RS 45/E BLU
4
(R 1 )
6
1
8
(R 2 )
7
D8046
D2209
15
GB
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