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7.3
Start-up procedure
Check that the operator panel display shows the heat request
and "OFF Upr": this means it is necessary to set the modulation
curve of the burner.
P
Access the Parameters Level referring to "Access procedure
with
password"
The display screen displays the parameters group 400.
P
Confirm with the key "i/reset"
The display shows "run"
Confirm with the key "i/reset". The burner starts up.
The display shows all the phases and relative times in sequence.
The phases are listed in the section "List of phases" on
page 17.
Phase 22:
Start of the fan motor.
Phase 24:
The burner goes to the pre-purging position, the air servomotor
opens the damper at 90°.
Phases 80, 81, 82, 83:
These phases relate to the valve seal test.
Phase 30:
The count of the pre-purging time pre-set in the factory begins.
Phase 36:
The burner goes to its switch-on position, point "P0", defined in
Tab. L on page 34: the display shows a flashing "P0" indication.
If the value proposed is adequate, confirm using the "+" but-
ton.
Otherwise, modify the ignition point (see the section"Procedure
for inserting and adjusting points on the modulation curve"
on page 41.
20205255
Control and display
V
h min s
%
on
V
h
min
s
%
/reset
P
The values shown in the figure are purely for indi-
cation purposes.
WARNING
page 39.
Phase 38:
The ignition phase begins and the spark goes off.
Phase 40:
The gas valves open (the count of the safety time begins). Using
the appropriate visor check there is a flame and that the combus-
tion parameters are correct. if necessary, vary the degrees of
opening/closing of the air and fuel servomotors.
If the flame control goes into lockout, press the keys "+" and "-"
(ESC) simultaneously: the display visualises alternately the lock-
out code for flame absence c: 4) and the relative diagnostic ( d:
3).
Solve the problem, referring to the paragraph "Ignition failure"
on page 51.
To unlock, see "Reset procedure" on page 38. The display vis-
ualises "OFF Upr".
Repeat the "Start-up procedure" on page 42.
The values previously inserted remain stored.
WARNING
Once the ignition has occurred (point "P0"), proceed with the
calibration of the modulation curve.
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.
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
42
GB
V
h
min
s
%
P
V h
min
P
h
min s
V
P
V
h min s
%
s
%
%
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