Table of Contents
Advertisement
Start-up, calibration and operation of the burner
5
5.8
Start-up procedure
P
m³/h
l/h %
m³
l
P
m³
m³/h
l
l/h %
P
m³/h
l
l/h %
m³
P
m³/h
l/h %
m³
l
P
m³/h
l
l/h %
m³
P
l/h %
m³
m³/h
l
20022445
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").
Warning: the values shown in the figure alongside are purely for indication
purposes.
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.
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.
30
GB
Advertisement
Table of Contents
