With channel 4 active (INVERTER), set the curve points
with burner on.
Set the inverter frequency as well.
• Set the opening value of air servomotor for second stage
valve enabling during the passage between 1st and 2nd
stage as in the previous points (this value must be set at an
intermediate point between first and second stage)
• press enter
• Set the opening value of air servomotor for second stage
valve disabling during the passage between 2nd and 1st
stage as in the previous points (this value must be at an
intermediate point between first and second stage)
• press enter
• Set air for the second stage using the arrows
• press enter
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