Riello RS 44/E MZ Installation, Use And Maintenance Instructions page 30

Start-up, calibration and operation of the burner
5
Parameter modification procedure
P
m³ m³/h l l/h %
Find below an example of how to modify the parameter relating
to the pre-purging time (No. 225).
P
m³ m³/h l l/h %
P
m³/h l/h %
m³ l
P
m³ m³/h l l/h %
After accessing the level
and group of parameters,
the display visualises the
number of the parameter
(flashing) on the left, and
the corresponding value on
the right.
If the value is not visual-
ised, press the key "i/reset
for 1 - 3 s.
Press the key "i/reset":
the value 20 (seconds) will
appear.
Note: the unit of measure-
ment of the time is not vis-
ualised but is understood
in seconds.
Press the key "+" and
increase the value to 25
seconds (flashing).
Press the key "i/reset" to
confirm and store.
To return to the list of
parameters, press simulta-
neously the keys "+" and
"-" (esc).
Procedure for inserting and adjusting points on the
modulation curve
Nine adjustment/calibration points (P1 - P9) can be inserted in
the control box for each servomotor, varying their position by de-
grees and, consequently, the quantity of air and fuel introduced.
The ignition point P0 is independent of the minimum modulation
value. This means that, in the event of difficulty, it is possible to
switch on the burner at a value other than the modulation mini-
mum (P1).
To insert or adjust a point, proceed as follows:
Access the Parameters level (group 400) referring to "Access
procedure with password".
P
m³ m³/h l
P
m³ m³/h l
P
m³ m³/h l
Select another point, or exit this area by pressing the keys "+"
and "-" simultaneously (esc).
28
GB
Using the keys "+" and "-"
insert/select
point you want and wait for
it to flash: this means that
the servomotors are now
positioned on the values
shown on the display and
which correspond to the
point previously set.
It is now possible to insert/
l/h %
modify the position
degrees.
Warning: the set value
does not
confirmation.
For the fuel servomotor,
keep the key "F" pressed
(the position in degrees
flashes) and press the
keys "+" or "-" to increase
or decrease the value.
l/h %
For the air servomotor,
keep the key "A" pressed
(the position in degrees
flashes) and press the
keys "+" or "-" to increase
or decrease the value.
l/h %
the curve
by
require
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