Joannes AZ 3 N, Руководство по установке и обслуживанию

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21 COMBUSTION HEAD ADJUSTMENT
Head adjustment is made by the screw 1 , as for indications of index 2 .
After having untightened the screw C , whith the screw A it obtains the air combustion adjustment, according
to the indications of index B . Block the screw C when the calibration is effected.
AIR FLAP ADJUSTMENT
Orientative positions of deflector and air flap according to various Boiler power levels (kW) and nozzle size
(GPH).
It is necessary to make combustion tests and to turn the air shaft regulating screw for adjusting the air quantity.