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5.8
Pre-calibrating the combustion head
The head must be pre-calibrated for model
RS 120/E O
2
within area B of the firing rate (Fig. 2 at page 9).
WARNING
Proceed as follows:
remove the 8 screws 2)(Fig. 17);
remove the 4 circular sectors 1) fixed behind the stability
disc.
5.9
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 maximum output of the
burner.
Two adjustments of the head are foreseen:
–
external air R1
–
central gas/air R2
BLU only, if its maximum output is
Installation
1
In the diagram (Fig. 18) find the notch at which to adjust both air
and central gas/air.
Max burner output
23
GB
D7952
20175022
2
Fig. 17
Fig. 18
20169327
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