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4.1.2. Power schemes
As it is evident from the diagram above, in the pre-mixed system air and gas are sucked in
and mixed together by a fan. It is possible control the quantity of the air-gas mix because
the fan rotation speed is electronically controlled, to obtain a variation of gas flow and thus
the power of the burner.
There are 3 different power levels:
•
Full power*: operating at maximum capacity and blower engines at full speed, the
inlet gas circuit is in total decompression and the gas valve adjustment of the valve
does not cause significant differences. The combustion is totally dependent on the
nozzle installed.
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