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Air servo-motor regulation
The air damper is activated by an electric servo-control. The positions of the damper are determined via the cams,
with reference to the scale on the relevant disc.
The cams are manoeuvred by means of the supplied spanner: they are clutched and self-locked.
The air damper servo-motor must be of the type indicated below.
( Servo-motor in the figure in total closure status)
CAM 1 (red) 3nd stage opening regulation
CAM 2 (yellow) Closure position regulation (value 0)
CAM 3 (red) 1rd stage opening regulation
CAM 4 (red) 2st stage opening regulation
CAM 1 (red)
CAM 2 (yellow)
CAM 3 (red)
CAM 4 (red)
Graduated scale