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5
Start-up, calibration and operation of the burner
5.1
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
5.2
Adjustments before first firing
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
(Fig. 18, page 24).
5.3
Burner start-up
Proceed as follows:
close the thermostat and switch on the burner's power;
open manual gas cocks;
light signal "POWER ON" must be switched on.
Turn the selector "OFF/ON" on position "ON";
light signal "CALL FOR HEAT" must be switched on.
The burner starts up in pre-purging mode at maximum speed.
Subsequently, the START value speed decreases and start-up oc-
curs. If the fan starts up but at the end of the safety time the flame
does not appear, burner goes into lockout mode.
At the gas valve opening, the light signal "VALVE ON" must be
switched on.
Reset and wait for a new start-up attempt.
If ignition continues to not occur, it may be the case that the gas is
not arriving at the combustion head within the safety time of 3s.
Rotate the screw V1 (Fig. 18, page 24), located on the gas valve
mixer, slightly in an anti-clockwise direction. Once the burner has
fired, proceed with the global adjustment of the burner.
20056507
Start-up, calibration and operation of the burner
Fig. 25
29
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
Adjust, if present, the min. gas pressure switch to the start of
the scale.
"ALARM NOISE"
acoustic signal
Key (Fig. 25)
"OFF/ON" switch
"RESET" signal button
"POWER ON" signal
"CALL FOR HEAT" signal
"ALARM NOISE" acustic signal
"ALARM SILENCE" button
"VALVE ON" signal
GB
20062079
Fig. 26
20062175
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