Pump Pressure; Combustion Head Setting; Air Damper Adjustment - Riello RG3F Instrucciones De Instalación, Montaje Y Funcionamiento

Replace nozzle (11) and screw new one on properly, holding it as illus-
➤
trated in figure 11 at page 8.
ATTENTION
When refitting the nozzle-holder assembly (1, fig. 11), screw on nut (3)
without tightening it all the way with a driving torque of 15 Nm, as illus-
trated on the right.
4.2 ELECTRODES ADJUSTMENTS
ATTENTION
THE GIVEN DISTANCES MUST BE RE-
SPECTED.
To adjust, proceed as follows:
Lean the diffuser disc-holder assembly
➤
(1) on the nozzle-holder (2) and lock it
by screw (3).
For prospective adjustments
➤
screw (4) and move the electrodes as-
sembly (5).
To have access to the electrodes carry out
operation as described in chapter "4.2
REPLACING NOZZLE" (page 8).

4.3 PUMP PRESSURE

Make required adjustments with the aid of the screw (4, fig. 6, page 5).

4.4 COMBUSTION HEAD SETTING,

Combustion head adjustment varies depending on burner delivery.
It depends on the output of the burner and is carried 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 example of Fig. 11, the set-point 3 of the regulating rod (9) is at the same level with the outside plane of
the nozzle-holder assembly (1).

4.5 AIR DAMPER ADJUSTMENT,

To adjust air damper, proceed as follows:
➤ Loosen nut (8) and adjust damper setting with the aid of the screw (7).
➤ When burner shuts down the air damper automatically closes till a max. chimney depressure of 0.5 mbar.
➤ Once you have finished adjusting, screw nut (8) back on.
20058598
(see fig. 12)
Fig. 12
loosen
(see fig. 11, page 8)
(see fig. 11, page 8)
9
GB
0
4,5
– 0,5 mm
4
5
3 2
D5085
D5684
3
÷
6 7
mm
1