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Press the button "+": the display visualises the indicator "P1"
flashing and proposes the same settings as point "P0".
Press button "+" again: the display shows "CALC" for a few
seconds.
P
The flame control will automatically report the same values set in
points "P0" and "P1" at points "P2" to "P8".
The purpose of this is to reach point "P9" to regu-
late/determine the maximum operation output.
IMPORTANT
Press "+" until point "P9" is reached.
Once point"P9" is reached wait for the display to show the flash-
ing indicator "P9" proposing the same settings as point "P0".
Now it is possible to change this value to obtain the maximum op-
erating power desired.
If the gas pressure is insufficient, despite opening the gas servo-
motor to a maximum of 90°, it is necessary to use the gas valve
stabiliser.
After adjusting point "P9" keep the "-" key on the display pressed
for about 5 seconds, "CALC" appears for a few seconds.
P
The flame control will automatically calculate the points from "P8"
to "P2", distributing them in a straight line. These are theoretical
and must be checked.
Check that the settings of point "P8" are adequate.
If not, modify the point.
Proceed in sequence, with the "-" button, up to point "P1".
It is possible to modify point "P1" to obtain a minimum modulation
point different to the ignition point ("P0").
Before moving on from one point to the next, wait
for the servomotors to reach the position visual-
ised on the display.
IMPORTANT
During the adjustment of each point, work on the air and gas ser-
vomotors, without modifying the position of the gas valve stabilis-
er.
Halfway through the procedure (i.e. around point P4 or P5), you
are advised to measure gas delivery and check that the output is
about 50% of the maximum output.
If this is not the case, work also on the gas valve stabiliser: in this
case however, it is necessary to revise the calibrations of all the
points previously set.
Once the calibration of point "P1" is completed, confirm by press-
ing the keys "+" and "-" (ESC) simultaneously: parameter "546"
will appear.
Control and display
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If you want to make the burner work on the entire modulation
curve, press the "+" and "-" (ESC) keys simultaneously: in this
way, parameter "546" will automatically be assigned the value of
100% and parameter "545" will have a value of 20%.
If you want to make the burner work on just a part of the modula-
tion curve, modify the parameters "546" and "545" according to
the"Parameter modification procedure" on page 38.
Press the keys "+" and "-" (ESC) simultaneously twice, the dis-
play will show the current load position.
ESC
At the end of the "Start-up procedure" it is nec-
essary to carry out a "Backup", which is used to
memorise the parameters and the data in the
flame control within the display RDI21...
WARNING
This operation allows the parameters and the
points of the modulation curve to be restored in
the event of problems.
It is advisable to perform a backup every time that
a parameter is changed!
For the procedure see "Backup" on page 42.
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20205048
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