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6
Start-up, calibration and operation of the burner
6.1
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.
6.2
Adjustments before first firing
6.2.1
Combustion head setting
The setting of the combustion head depends exclusively on the
delivery of the burner in the 2
bined delivery of the two nozzles selected on pag. 13.
Turn screw 4)(Fig. 20) until the notch shown in diagram (Fig. 21)
is level with the front surface of flange 5)(Fig. 20).
Example:
Burner with 8.00 GPH nozzle and 14 bar pump pressure: from
Tab. F, pag. 13 a delivery of 35.1 kg/h is obtained.
Diagram (Fig. 21) indicates that for a delivery of 35.1 kg/h the
burner requires the combustion head to be set to approx. 4 notch-
es, as shown in Fig. 20.
6.2.2
Pump adjustment
No settings are required for the pump, which is set by the manu-
facturer to:
– 22 bar: high pressure
– 9 bar: low pressure
this pressure must be checked and adjusted (if required) after the
burner has been ignited.
6.2.3
Fan gate adjustment
For the first time the burner is fired leave the factory setting un-
st
changed for both 1
stage and 2
In summing up, the adjustments to be executed prior to the first
firing are:
➤ Selection and installation of the nozzle
➤ Adjustment of combustion head
The following aspects need not be modified:
➤ Pump pressure
➤ Air gate valve adjustment, 1
➤ Air gate valve adjustment, 2
20023224
Start-up, calibration and operation of the burner
nd
stage - in other words, the com-
nd
stage operation.
st
stage
nd
stage
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
D819
No. noches
Light oil delivery in 2
18
GB
Fig. 20
nd
stage - Kg/h
Fig. 21
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