Table of Contents
Advertisement
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" on page 36.
The display screen displays the parameters group 400.
P
Press the "+" button and select the parameters group 600:
P
Confirm with the key "i/reset"
Scroll the parameters with the "+" button, until parameter 641
(VSD speed standardisation) is selected.
P
Set parameter 641 = 1.
Press the "i/reset"key, start the "VSD speed standardisation"
phase.
See the specific manual for the correct inverter
parametrization.
WARNING
The air servomotor opens the damper at 90° and simultaneously
begins the inverter start phase when the speed/frequency max is
reached.
Phase 22:
Start of the fan motor.
If the standardisation operation is successful, the parameter is re-
set to 0.
Negative values indicate errors.
20205882
Control and display
h min s
V
%
V
h
min
s
%
V
h min s
%
/reset
h min s
%
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. K on page 32: 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 37.
P
V
The values shown in the figure are purely for indi-
cation purposes.
WARNING
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, fuel
and VSD servomotors.
If the flame control 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).
40
GB
h
min
s
%
P
V h
min
s
P
V
h
min s
%
%
Advertisement
Table of Contents
