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Start-up, calibration and operation of the burner
5
5.8
Start-up procedure
P
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m³/h
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l/h
P
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l/h
P
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l/h
P
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l/h
P
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P
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l/h
Check that the display of the Operator Panel shows request for heat and "OFF Upr":
this means it is necessary to set the modulation curve of the burner.
%
Access the Parameters level referring to "Access procedure with password".
The display visualises the parameters group 400; confirm with the key "i/reset".
%
The display visualises "run".
Confirm with the key "i/reset": the burner starts up.
The display visualises in sequence all the various phases and relative times.
The phases are those defined on page 28.
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 (this function is not inserted in the factory, as
it is optional).
Phase 30:
The count of the pre-purging time pre-set in the factory begins.
Phase 36:
The burner goes to the ignition position, point "P0", defined in the table on page 30: the
display visualises the indication "P0" flashing. If the value proposed is suitable, confirm.
Otherwise, modify the ignition point (see "Procedure for inserting and adjusting points on
the modulation curve").
%
DANGER
Confirm with the key "+".
Phase 38:
The ignition phase begins and the spark goes off.
Phase 40:
The gas valves open (the count of the safety time begins).
Check the presence of the flame from the special inspection window, and the
correctness of the combustion parameters; if necessary, vary the degrees of opening/
closing of the air and fuel servomotors.
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If the control box goes into lockout, press the keys "+" and "-" (esc) simultaneously: the
display visualises alternately the lockout code for flame absence c: 4) and the relative
diagnostic (d: 3).
Resolve the problem, referring to Ch. 5.12.
Reset (see "Reset procedure"): the display visualises "OFF Upr".
Repeat the start-up procedure.
%
Warning: the values inserted previously remain stored.
After ignition (point "P0"), proceed with the calibration of the modulation curve, starting
from the minimum point "P1".
Press the key "+": the display visualises the indication "P1" flashing and proposes the
same settings as for point "P0". It is possible to modify this value and obtain a
modulation minimum different from the ignition point.
Warning: the values shown in the figure alongside are purely for
indication purposes.
29
GB
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