Pump Pressure; Fuel Heating - Riello Rg0.2R Montage Und Bedienungs Anleitung

B
Fig. 13 – Remove nozzle-holder assembly
(1) after loosing screws (2) and nut (3), remove
the small cables (4) from the control box, the pho-
toresistance (6) and the socket (10).
– Withdraw the small cables from the electrodes,
remove the diffuser disc-holder assembly (11)
from the nozzle-holder assembly (1) after loos-
ing screw (3, fig. 11, page 5).
– Screw the nozzle (12) correctly and tighten
it as shown in figure.
ATTENTION
During the reassembly of the nozzle-holder
assembly screw the nut (3) as shown in the figure
below.
TIGHTEN WITHOUT MOVING
BACKWARDS TO THE END
2

PUMP PRESSURE

– The pump leaves the factory set at 12 bar.
– To change it act on pump pressure adjust
screw (5, fig. 7, page 4).
3
COMBUSTION HEAD SETTING
(see fig. 13)
It depends on the output of the burner and is car-
ried out by rotating clockwise or counterclockwise
the setting screw (5) until the set-point marked on
the regulating rod (9) is level with the outside
plane of the nozzle-holder assembly (1).
– In the sketch the combustion head is set for an output of 0.75 GPH at 12 bar.
The set-point 2 of the regulating rod (9) is at the same level with the outside plane of the nozzle-holder
assembly (1) as shown in the schedule.
4
AIR DAMPER ADJUSTMENT
– To vary the setting adjust the screw (7) after loosing the nut (8).
– Values in the table refer to 12% CO
– When burner shuts down the air damper automatically closes till a max. chimney depressure of 0.5 mbar.

4.2 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.
2300
D5684
3
(see fig. 13)
and to sea level.
2
Fig. 13
7 GB
S7223