Ravelli FRANCESCA Manuel D'utilisation Et D'entretien page 9

3.6. The combustion
The combustion is a chemical reaction between fuel and oxidizer. The result of this reaction is the heat.
The three elements that are required for the combustion are:
- Fuel (pellet)
- oxidizer (oxygen available in the air)
- Ignition (heat of embers or electrical ignitor)
To get the combustion, the combustible and the carburant must be available in a correct proportion.
The reaction between combustible and carburant is made by an external starter. The start can be made by the hot reaction or by a sparkle.
The combustion is NOT CORRECT, the flame is too tight with too much incandescent pellet in the firepot.
Adjust the Set pellet/air reducing the air percentage (from 0 up to -5); in the vent this is not enough to get a proper flame, increase the loading
quantity of the pellet (from 0 up to +5) to reach the flame condition shown in picture 3.
User and maintenance manual for stoves with RDS technology
INCORRECT combustion, flame too drawn, in "blowtorch" style with a high quality of
incandescent pellets coming out of the grate. Correct the pellet/air set by reducing the
percentage of air (from 0 to -5); if not sufficient, also increase the percentage of falling
pellets (from 0 to +5) to arrive to the condition in Figure 3.
If the changes made to the settings do not bring the stove to the right combustion
conditions in Figure 3, contact the Technical Support Centre.
Pic. 1
INCORRECT combustion, "spring" flame in "wood stove" style with high quantity of pellets
not burning on the grate. Firstly, check the door is closed and the ash pan. Secondly,
correct the pellet/air set by increasing the percentage of air (from 0 to +5); if not sufficient,
also reduce the percentage of falling pellets (from 0 to -5) to arrive to the condition in
Figure 3.
If the changes made to the settings do not bring the stove to the right combustion condi-
tions in Figure 3, contact the Technical Support Centre.
Pic. 2
The combustion IS CORRECT, full flame yellow/white and minimum quantity of pellet in
the firepot.
The combustion if fine and no ad.
The picture 3 show a flame done with a stove working at power P5.
Pic. 3
PELLET
01/02/2016
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