24
It is necessary to make combustion tests and to turn the air shaft regulating screw for adjusting the air quantity.
ECO 10
The immediately accessible micrometrical screw device (B) allows to effect precise, stable air delivery
adjustments. After loosening the crown (C), turn the screw clockwise to reduce the butterfly aperture or
anticlockwise to increase it.
ECO 3 - ECO 3R - ECO 3RL
ECO 5 - ECO 5R
ECO 7 - ECO 7R
B
C
+