Riello Gulliver BG7D Installation, Use And Maintenance Instructions page 75

4.6 FLAME DETECTOR ADJUSTMENT,
(see fig. 17)
The flame detector comes with a factory setting of 4.
It comprises:
- Potentiometer (3) for adjusting sensitivity.
- Led (1) indicating sensitivity.
- Led (2) indicating operation.
ATTENTION
During pre-purging, the led (1 and 2) are unlit.
Stable operation is reported by both Leds lighting.
To adjust, proceed as follows:
Using the potentiometer (3), turn the indicator anticlockwise
until led (1) lights, thus determining the minimum setpoint
value.
Using the potentiometer (3), turn the indicator clockwise until
led (1) is steadily lit. Consider the final setting as the minimum
value determined, increasing by 1 or 2 notches.
Check after at least a 5-minute stop that the resulting adjust-
ment produces a correct burner start-up programme.
3066
Black
12 GB
Fig. 17
1
Brown
3
2
Blue
S7903