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7
Start-up, calibration and operation of the burner
7.1
Notes on safety for the first start-up
The first start-up of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and regula-
tions of the laws in force.
WARNING
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
7.2
Adjustments prior to ignition
The following adjustments must be carried out:
open the manual valves upline of the gas train;
bleed the air from the gas pipes using the screw on the
socket P1 (Fig. 22 on page 25).
Adjust the minimum gas pressure switch to the start of the
scale.
7.3
Fan adjustment
Modulation is based on variable-speed technology.
The combustion air flow rate can be regulated by varying the mo-
tor speed (rpm).
The proportioning gas train delivers the right amount of fuel, de-
pending on the pressure detected in the purging circuit.
So the flow rate supplied is regulated by changing the rotation
speed of the motor.
The motor speed can be regulated through an adjustment of the
control box.
The adjustments take place on the AZL display on the burner and
are carried out using the following parameters:
7.4
Pre-setting of the points P0 (ignition), P1 (minimum) and P2 (maximum)
The burner leaves the factory with a pre-setting of points P0, P1
and P2.
Before starting the burner we recommend modifying these point
based on the maximum output of the boiler, the minimum output
desired and that of the ignition.
To set the points based on the desired outputs, see the charts
(pag. 11).
To modify the points P0, P1 and P2 with the burner off, proceed
as follows:
–
electric voltage is available.
–
Press the switch "ON/OFF" selector to "OFF", standby (OFF).
Start the programming mode for the technician.
Keep the buttons "A" and "F" pressed simultaneously for
< 5 seconds. "Code" is displayed.
Entering the password of the technician (SO) using the but-
tons "+", "-" and "i/reset". See also chapter Entering the
password on page 40.
The displays shows PArA and then 400:Set. Confirm by
pressing "i/reset".
The display shows run.
Press simultaneously the keys "+" and "-" (ESC).
The display shows "P0: 1200" (for example 1200 rpm).
Start-up, calibration and operation of the burner
Before igniting the burner, see the paragraph
Safety test - with gas feeding closed on
page 54.
WARNING
START
ignition point
MIN
minimum point
MAX
maximum point
NOTE:
The adjustment of the fan (to establish the maximum, mini-
mum and ignition outputs) can occur independently both of
the AZL display and the keys and display on board the ma-
chine.
Below is a description of the procedure to carry out using
the AZL display.
Points P0, P1 and P2 can be modified within the range de-
fined by the limits set in the parameters 516, 517 and 518 re-
spectively.
Change the value by pressing simultaneously the keys "A"
and "+" to increase the value or keys "A" and "-" to lower the
value.
Confirm by pressing "i/reset".
The display shows "P1: 1200" (for example 1200 rpm).
Change the value by pressing simultaneously the keys "A"
and "+" to increase the value or keys "A" and "-" to lower the
value.
Confirm by pressing "i/reset".
The display shows "P2: 5700" (for example 5700 rpm).
Change the value by pressing simultaneously the keys "A"
and "+" to increase the value or keys "A" and "-" to lower the
value.
Confirm by pressing "i/reset".
Press contemporaneously the keys "+" and "-" (ESC) several
times until the display shows "OPErAtE" and then "OFF";
At this point it is possible to start the burner.
49
GB
(P0) Parameter P 403.00
(P1) Parameter P 403.01
(P2) Parameter P 403.02
20160576
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