29
20169327
GB
Start-up, calibration and operation of the burner
6.1
Notes on safety for the first start-up
6.2
Adjustments prior to ignition
The adjustments to be carried out are:
ensure that the gas supply company has carried out the sup-
ply 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 switch (Fig. 32 at
page 32) to the start of the scale.
Adjust the maximum gas pressure switch (Fig. 31 at
page 31) to the end of the scale.
Adjust the air pressure switch (Fig. 30 at page 31) to the
start of the scale.
Adjust the pressure switch for the valve leak detection con-
trol device (PVP Kit)(Fig. 33 at page 32), if present, accord-
ing to the instructions supplied with the Kit itself.
Check the gas supply pressure by connecting a pressure
gauge to the pressure test point 1)(Fig. 28) of the minimum
gas pressure switch: it must be lower than the maximum
allowed pressure of the gas train, as shown on the charac-
teristics label.
Bleed the air from the piping of the gas train, connecting a
plastic tube to the pressure test point 1)(Fig. 26) of the mini-
mum gas pressure switch.
Take the vent tube outside the building so you can notice the
smell of gas.
Connect two lamps or testers to the two gas line solenoids to
check the exact moment at which voltage is supplied.
This operation is unnecessary if each of the two solenoids is
equipped with an indicator light that signals voltage passing
through.
6
Start-up, calibration and operation of the burner
WARNING
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
Before igniting the burner, see the paragraph
“Safety test - with gas feeding closed” on
page 35.
An excessive gas pressure can damage the com-
ponents of the gas train and lead to a risk of explo-
sion.
CAUTION
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 deliv-
ery at the minimum.
Fig. 28
D9072
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Summary of Contents for RRS 68/E O2 BLU
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