Working; Combustion Adjustment; Recommended Nozzles; Maintenance Position - Riello Gulliver RG0.3 Installation, Use And Maintenance Instructions

4. WORKING

4.1 COMBUSTION ADJUSTMENT

In conformity with Efficiency Directive 92/42/EEC the application of the burner on the boiler, adjustment and
testing must be carried out observing the instruction manual of the boiler, including verification of the CO and
CO concentration in the flue gases, their temperatures and the average temperature of the water in the boiler.
2
To suit the required appliance output, choose the proper nozzle and adjust the pump pressure, the setting of
the combustion head, and the air damper opening in accordance with the following schedule.
1
RECOMMENDED
NOZZLES
:
Delavan type W - B
Danfoss type S - B - H
Monarch type R - NS
Steinen type S - Q - H
For ignitions at low temperature
(lower than + 8 °C) act as follows:
Use nozzles with empty or half-
empty cone of the following type:
Delavan W ; Danfoss H;
Monarch NS ; Steinen H, or
(as alternative) increase the pump
pressure up to 14 bar.
If necessary, adopt both solutions.

MAINTENANCE POSITION

THE ACCESSIBILITY TO THE NOZZLE, THE DIFFUSER DISC AND THE ELECTRODES IS MADE EASY
IN 2 WAYS:
A
Fig. 12 – Remove the burner out of the boiler, after loosing the fixing nut to the flange.
– Hook the burner to the flange (1), by removing the blast tube (2) after loosing the fixing screws (3).
– Remove the small cables (4) from the electrodes and the diffuser disc-holder assembly (5) from the noz-
zle-holder assembly after loosing its fixing screw (3, fig. 11, page 5).
– Screw the nozzle (6) correctly and tighten
it as shown in the figure.
2301
Nozzle Pump
pressure
1 2
GPH Angle bar
0.50 80° 9.5
0.50 60° / 80° 12
0.60 60° 12
0.65 60° 12
0.75 60° 12.5
Fig. 12
S7225
6 GB
Burner Comb. head
output adjustment
3
kg/h ± 4%
Set-point
1.8 1
2.0 1.5
2.5 1.7
2.8 2
3.2 2
Air damper
adjustment
4
Set-point
0.8
1.1
2
3.3
6
S7226