AIR SEVOMOTOR ADJUSTMENT
Air shutter is operated by the
motor-reducer;close/open
and 1st stage/open max.
adjustmentsare to be made
on the cams, by turning anti-
clockwise to increase air shutter
opening andclockwise to decre-
ase it.
Cam II Total closing position
CamIII 1st stage starting
adjustment
CamI 2nd stage starting
adjustment
CamV 2nd stage VE2 opening
ok (must beadjusted to at least
6° more than cam II
The motor reducer controls the
air intake valve.
Adjustment of the open/close po-
sition of the 1° flame / max. ope-
ning is controlled by turning the
cam anticlockwise to open the
butterfly valve and clockwise to
close.
Blue cam
totally closed
Orange cam
air control 1° flame
Red cam
air control 2° flame
Black cam
Permits opening of the electro-
magnetic valve of the 2° flame
UK
46
ECO 22/2
ECO 30/2 - 40/2
Red Cam
Blue cam
Orange cam
Black cam
Setting
range