Air Damper Adjustment - Riello P 140 T/G Installation, Use And Maintenance Instructions

6. AIR DAMPER ADJUSTMENT

The air dampers adjustment shall be set each time in relation with the nozzles delivery and the combustion chamber
pressurization.
Fig. 2
Fig. 2 shows the placement of the air dampers as Þg. 3 their correspondent hydraulic jacks.
To open or close the air dampers proceed as follows:
loose the ring nut 1), turn clockwise the exagonal body 2) in order
to decrease the air ßow, and counterclockwise to increase it.
The right adjustment of the air dampers may be detect by checking
the combustion results in the three stages of burner operation.
To check the combustion during the different stages, the commuta-
tor (see page 12) should be set to the position corresponding to the burner stage to be controlled.
st
1 stage air damper
nd
2 stage air damper
rd
3 stage air damper
11
Fig. 3
rd
3 stage hyd. jack
nd
2 stage hyd. jack
st
1 stage hyd. jack