Burner Start-Up Cycle - Riello Rg2F Montage- Und Bedienungsanleitung

4.3 ELECTRODES ADJUSTMENTS
ATTENZIONE
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 loosen
➤
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).
4.4 PUMP PRESSURE
Make required adjustments with the aid of the screw (4, fig. 5, page 5).
4.5 COMBUSTION HEAD SETTING
It depends on the output of the burner and is carried out by rotating clockwise or counterclockwise the
setting screw (5, fig. 11) until the set-point marked on the regulating rod (9) is level with the outside plane
of the nozzle-holder assembly (1).
Figure 11 illustrates the head adjusted for a delivery of 2.00 GPH at 11 bar.
The set-point 6 of the regulating rod (9) is at the same level with the outside plane of the nozzle-holder
assembly (1) as shown in the table at page 8.
4.6 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.
➤

4.7 BURNER START-UP CYCLE

Normal
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
C
Lock out is indicated by a lamp on the control box (3, fig. 1, page 1).
(see fig. 11, page 9)
~
12s
0
Fig. 12
4.5
– 0.5 mm
D5537
Lock-out due to failure to light
9 GB
4
–
4
5
3 2 1
~
12s 5 s
5
mm
C
D5029
20061713