Working; Combustion Adjustment - Riello Burners Gulliver RG1 Manuel D'entretien

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.
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 DIF-
FUSER 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
nozzle-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.
B
Fig. 13, page 7 – Remove nozzle-holder assem-
bly (1) after loosing screws (2) and nut (3), remove the
small cables (4) from the control box and the photore-
sistance (6).
– Withdraw the small cables (4) from the electrodes,
remove the diffuser disc-holder assembly (10) from
the nozzle-holder assembly (1) after loosing screw
(3, fig. 11, page 5).
– Screw the nozzle (11) correctly and tighten it as
shown in figure.
2303
Nozzle Pump
pressure
1 2
GPH Angle bar
0.65 60° 12
0.75 60° 12
0.85 60° 12
1.00 60° 12
1.10 60° 12
1.10 60° 13
6 GB
Burner Comb. head
output adjustment
kg/h ± 4%
Set-point
2.7 2.5
3.1
3.6 3.5
4.1
4.8
5.0
2
5
4
2
Air damper
adjustment
3 4
Set-point
1.3
3 2
3
4 4.5
4 5.5
4 6
A
Fig. 12
3
6
1
S7477