20
AIR FLAP ADJUSTMENT
5N - 5RN - 5LN
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.
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.