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6.4
Burner start-up
Feed electricity to the burner via the disconnecting switch on
the boiler panel.
Close the thermostats/pressure switches and turn the switch
of Fig. 43 to position "1".
Put the switch to the "OIL" (Fig. 43) position for light oil
operation and "GAS" for gas operation.
Make sure that the lights or testers connected to
the solenoids, or the pilot lights on the solenoids
themselves, indicate that no voltage is present.
If voltage is present, stop the burner immediately
DANGER
and check the electrical wiring.
6.5
Change of fuel
The selection of the fuel must take place with
the burner off.
WARNING
The burner is electrically and mechanically de-
signed to exclude the operation with light oil and
to activate the gas operation.
WARNING
This modification must be made by qualified Riello
personnel.
There are two change of fuel options:
1
with the "OIL-EXT-GAS" selector (Fig. 43);
2
with a remote selector connected to the main terminal
board.
Positioning the selector to "EXT" activates the remote selection
of the fuel.
In this position, if there is no remote selector, the display shows
the priority fuel, but does not start.
In the passage between the two fuels, the following is displayed:
"FUEL CHG" (Fig. 46).
The display shows when operating with:
-
light oil "OFF GASO" (Fig. 44)
-
gas "OFF GAS1" (Fig. 45)
Start-up, calibration and operation of the burner
20126844
35
GB
EXT
0
OIL
1
GAS
Fig. 43
Fig. 44
Fig. 45
Fig. 46
20121303
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