Air Damper Adjustment - Riello PRESS 2G Installation, Use And Maintenance Instructions

(3) The indicated outputs are drawn from the average statistical data of
our tests.
Real output may well vary by ± 5%.
(4) The rear level of the control-shaft (7) (fig. 1) must line-up with the
set-point number, indicated by the diagram.
In the sketch on the right, the shaft is shown, in the position required
by the example on page 7.

AIR DAMPER ADJUSTMENT

Air damper adjustment for the first flame
Loosen the screw (1), the nut (3) and move the graduated scale (2) so that the pointer (4) lines-up with the set-point
desired; then tighten the screw (1) and the nut (3). A sufficiently exact control, valid for 12 bar and for the different
boilers pressurizations is given by the following table:
NOTE
For any necessary combustion adjustment, at the first flame stage, remove the bridge or the second stage thermo-
stat (see page 5).
Regulation of the air damper for the second flame
Loosen the threaded locking-ring (1) and tighten the hexagon (2) in order to reduce flow; slacken the hexagon to
increase flow.
This adjustment shall be modified, from time to time, in relation to the various combustion chambers pressurizations.
5902
On the sketch the graduated scale is shown, in
the position required by the example on page 7.
8
Set - point 4
4
Set - point 1,5