baltur BGN 17 DSPGN, Instructions Manual

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SQN 30.251A2700 AIE REGULATION SERVOMOTOR
PREVENTILATION WITH OPEN AIR (MAX. FLAME
POSITION) AIR CLOSED BURNER NOT IN
OPERATION WHEN (MODULATING BURNERS)
N° BT 8919
EN
Main feeding valve cam
Minimum flame air regulating cam
Air butterfly valve cam closed when burner not operating
Motor-cam shaft coupling exclusion pin. Push it to disconnect motor from cam shaft.
Maximum flame air regulating cam
N.B.: It must not be more than 80°
To change cam position, operate the respective red rings.
By pushing hard enough in the desired direction, all the red rings can rotate around the reference scale.
The pointer of the red ring indicates in its reference scale the rotation angle set for each cam.