Electrodes Adjustment; Flame Detector Adjustment; Fuel Heating - Riello Gulliver BLU BGK1 Manuel D'entretien

4.2 ELECTRODES ADJUSTMENT

WARNING
MEASURES MUST BE RESPECTED.
Lean the diffuser disc-holder assembly
(1) on the nozzle-holder (2) and lock it
by screw (3).
For prospective adjustments of the elec-
trodes assembly (4), loosen screw (5).
To have access to the electrodes carry
out operation as described in chapter
4.1 (page 6) "RECOMMENDED NOZ-
ZLES".

4.3 FLAME DETECTOR ADJUSTMENT

(See fig. 16)
The sensitivity of the flame detector can be adjusted with a
potentiometer (3). It is factory-set t in position 4.
Led (1) indicates the sensitivity.
Led (2) indicates the operation.
During pre-ventilation both leds are switched off.
Optimal sensitivity during stable operation is shown when
both leds are switched on.
If led (1) pulsates, turn the potentiometer until it switches on
in a steady manner.
counterclockwise until the led pulsates.
Next, increase the sensitivity by turning the pointer
clockwise one or two notches.
Wait at least 5 minutes, then make sure that the
adjustment done as above allows a correct starting
program of the burner.

4.4 FUEL HEATING

In order to assure regular ignition and working also at low temperature the burner has an oil pre-heater
fitted in combustion head. The pre-heater starts when thermostats close.
When the required temperature for ignition is reached the thermostat fitted on the nozzle holder starts the
burner. The pre-heater remains energised during working and cuts out when burner shuts-down.
2513
(see fig. 15)
Fig. 15
Then, first turn the
0
4.5
– 0,5 mm
5
4
D5843
3 2
pointer
8 GB
5.5 ±
0.3 mm
+
0.5
4
0 mm
1
Fig. 16
S7129
3
2
1