Combustion Head Adjustment; Adjustment Of Air Shutter - Riello Gulliver RG5D Manuel D'entretien

4.5

COMBUSTION HEAD ADJUSTMENT

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 as-
sembly as shown in the schedule.
4.6

ADJUSTMENT OF AIR SHUTTER

1 st STAGE ADJUSTMENT
Unloosen the nut (1), turn the screw (2) until the indicator (3) reaches the position desired.
Then lock the nut (1), (see fig. 15).
2 nd STAGE ADJUSTMENT
Unloosen the nut (4), turn the screw (5) until the indicator (6) reaches the position desired.
Then lock the nut (4), (see fig. 15).
PRESSURE REGULATION
This is set at 12 bar at the factory.
Should it be necessary to re-set or alter such pressure, this can be done, by adjusting screw (8).
The pressure gauge must be mounted in place of cap (7), (see fig. 16).
When burner shuts down the air damper automatically closes till a max. chimney depressure of 0.5 mbar.
Fig. 15
3
3367
5
6
4
2
1
S7119
(see fig. 13, page 8)
Fig. 16
8
7
D5407
9 GB