Riello Guliver RG1RKD Installation, Use And Maintenance Instructions page 62

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 (12) until the set-point marked on the regulating rod (8) is level with the outside plane of the nozzle-holder
assembly (7).
In the sketch the combustion head is set for an output of 0,85 GPH at 15 bar. The set-point 3 of the regu-
lating rod (8) is at the same level with the outside plane of the nozzles-holder assembly (7) as shown in the
schedule (page 7).
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. 16).
PRESSURE REGULATION
This is set at 9 bar at the factory. Should it be necessary to re-set or alter such pressure, this can be done, by
adjusting screw (7). The pressure gauge must be mounted in place of cap (8), (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. 16).
PRESSURE REGULATION
This is set at 14 bar at the factory. Should it be necessary to re-set or alter such pressure, this can be done,
by adjusting screw (9). The pressure gauge must be mounted in place of cap (8), (see fig. 15). When burner
shuts down the air damper automatically closes till a max. chimney depressure of 0,5 mbar.
4.7 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.
3361
(see fig. 13, page 8)
Fig. 16
Fig. 15
S7078
9
GB