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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 (light oil operation)
5.2.1
Combustion head setting
The setting of the combustion head depends exclusively on the
maximum delivery of the burner.
5.2.2
Pump adjustment
No settings are required for the pump, which is set to 360 PSI by
the manufacturer. This pressure must be checked and adjusted (if
required) after the burner has been ignited.
The only operation required in this phase is the application of a
pressure gauge on the appropriate pump attachment.
5.2.3
Air damper adjustment
The first time the burner is fired leave the factory setting unchanged
for both low and high fire operation.
5.3
Burner firing
Having completed the checks indicated in the previous head-
ing, the pilot of the burner should fire.
If the motor starts but the flame does not appear and the flame
safeguard goes into lock-out, reset and wait for a new firing
attempt.
Pilot adjustment has been illustrated on Fig. 18, page 21.
Having adjusted the pilot, reconnect the main valve and ignite
the main flame; it might require several attempts to purge the
air from the gas lines or to adjust the valve with little gas.
Once the burner has fired, now proceed with calibration opera-
tions.
When fitting the burner on the two slide bars, it is
advisable to gently draw out the high tension cables
until they are slightly stretched.
WARNING
5.4
Burner calibration
The optimum calibration of the burner requires an analysis of the
flue gases at the boiler outlet.
Adjust successively:
Firing output
Maximum burner output
Start-up, calibration and operation of the burner
31
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
Refer to paragraph "Safety test - with gas ball
valve closed" on page 37 before the first start-
up.
WARNING
5.2.4
Electrode position
Make sure that the electrodes are positioned as
shown in Fig. 39.
WARNING
D10495
2
3
20097600
Minimum burner output
Intermediate outputs between low and high fire
Air pressure switch
Minimum gas pressure switch
GB
3/ 32"
1
4
5
6
14
Fig. 39
Fig. 40
20095074
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