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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-
WARNING
tions of the laws in force.
5.2
Adjustments before first firing
Ensure that the gas supply company has carried out the supply line
vent operations, eliminating air or inert gases from the piping.
Slowly open the manual valves situated upstream of the gas
train.
Adjust the minimum gas pressure (Fig. 35) switch to the start
of the scale.
Adjust the maximum gas pressure switch (Fig. 34) to the end
of the scale.
Adjust the air pressure switch (Fig. 33) to the start of the scale.
Purge the air from the gas line. Fit a U-type manometer
(Fig. 31) to the gas pressure test point on the sleeve. The
manometer readings are used to calculate the MAX. burner
power using the Tab. J.
Before starting up the burner it is good practice to
adjust the gas train so that ignition takes place in
conditions of maximum safety, i.e. with gas delivery
CAUTION
at the minimum.
5.3
Burner start-up
Feed electricity to the burner via the disconnecting switch on
the boiler panel.
Close the thermostats/pressure switches.
Please refer to the spacific manual for this operation.
Turn the switch of Fig. 32 to position "ON" and turn the switch
to position "LOCAL".
Make sure that the lamps or testers connected to
the solenoids, or indicator lights on the solenoids
themselves, show that no voltage is present.
DANGER
If voltage is present, stop the burner immediately
and check the electrical wiring.
For further information, please refer to the specific
instruction of the control box.
WARNING
Start-up, calibration and operation of the burner
27
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
D2368
GB
LO CAL
O N
O FF
D12185
Fig. 31
REM O TE
Fig. 32
20069791
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