Riello Gulliver RG5D Installation, Use And Maintenance Instructions page 37

2
COMBUSTION HEAD SETTING (see fig. 12, page 6)
It depends on the output of the burner and is carried out by rotating clockwise or counterclockwise the setting
screw (6) until the set-point marked on the regulating rod (7) is level with the outside plane of the nozzles-
holder assembly (1).
– In the sketch the combustion head is set for an output of 2.00 + 2.00 GPH at 12 bar.
The set-point 3 of the regulating rod is at the same level with the outside plane of the nozzles-holder
assembly as shown in the schedule.
4.2 ELECTRODES ADJUSTMENT
WARNING
MEASURES MUST BE RESPECTED.
For prospective adjustments loosen
screws (1) and move the electrodes
assembly (2), (see fig. 13).
To have access to the electrodes carry out
operation as described in chapter 4.1
(page 6) "RECOMMENDED NOZZLES".
4.3 PUMP PRESSURE AND AIR OUTPUT
st
1 STAGE ADJUSTMENT
ADJUSTMENT OF AIR SHUTTER:
Unloosen the nut (1), turn the screw (2) until the indicator (3)
reaches the position desired. Then lock the nut (1), (see fig. 14).
nd
2
STAGE ADJUSTMENT
ADJUSTMENT OF AIR SHUTTER:
Unloosen the nut (4), turn the screw
(5) until the indicator (6) reaches the
position desired.
Then lock the nut (4), (see fig. 14).
PRESSURE REGULATION:
This is set at 12 bar at the factory.
Should it be necessary to re-set or al-
ter such pressure, this can be done,
by adjusting screw (8).
The pressure gauge must be mounted
in place of cap (7), (see fig. 15).
When burner shuts down the air
damper automatically closes till a
m a x . c h i m n e y d e p r e s s u r e o f
0,5 mbar.
2335
1
2
D5406
Fig. 15
8
7
D5407
7 GB
1
Fig. 13
Fig. 14
3
5
6
4
2
1
S7119