Riello Burners Gulliver BLU BG1 Manuel D'entretien page 40

4.2 ELECTRODES ADJUSTMENT
ATTENTION
Lean insulators (1) to disc (2),
(see fig. 15).
To have access to the electrodes
carry out operation as described in
chapter 4.1 (page 6) "NOZZLES
TO BE USED".
4.3 FLAME DETECTOR ADJUSTMENT,
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. Then,
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.
2318
ATTENTION
Fig. 15
0
5
+ 0.5 mm
D5756
(see fig. 16)
first turn the pointer
8 GB
Measures must be respected and
also the upwards position.
2
1
3
Fig. 16
S7129
6
mm
3
2
1