Working; Combustion Adjustment; Recommended Nozzles; Combustion Head Adjustment - Riello RG2D Manuel D'entretien

4.

WORKING

WARNING
!
QUALIFIED PERSONNEL WITH THE RIGHT INSTRUMENTS MUST HANDLE THE BURNER'S START-UP.

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 table.
The values shown in the table are measured on a CEN boiler (as per EN 267).
They refer to 12.5% CO 2 at sea level and with gas oil and room temperature of 20 °C.
Nozzle
1 st stage 2 nd stage
GPH Angle
1.00 60°
1.10 60°
1.25 60°
1.50 60°
1.75 60°
2.00 60°
2.25 60°
1.50 60°
1.75 60°
2.00 60°
2.25 60°
2.50 60°
3.00 60°
3,50 60°
2.50 60°
3.00 60°
3.50 60°
4.00 60°
4.50 60°
4.2

RECOMMENDED NOZZLES

Monarch type R; Delavan type W - E;
4.3 ADJUSTING THE ELECTRODES,
ATTENTION
YOU MUST FOLLOW THE PROCEDURES GI-
VEN
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 assembly (5).
3363
Pump pressure
bar
1 st stage
9 14
9 14
9 14
9 14
9 14
9 14
9 14
9 15
9 15
9 15
9 15
9 15
9 15
9 14
9 14
9 14
9 14
9 14
9 14
(fig. 12)
Combustion
Burner output
adjustment
kg/h ± 4%
2 nd stage
Set-point
3.5 4.3
3.8 4.8
4.3 5.4
5.2 6.5
6.1 7.6
7.0 8.7
7.8 9.8
5.3 6.8
6.4 8.2
7.2 9.3
8.2 10.5
8.7 11.2
10.5 13.5
12.5 15.2
8.7 10.8
10.4 13.0
12.2 15.2
13.9 17.3
15.6 19.5
Steinen type Q;
4,5 – 0,5 mm
D5341
7
GB
Air damper
adjustment
head
1 st stage
Set-point
0 0.2
1 0.4
2 0.6
3 0.8
4 1.2
5 1.4
6 1.6
0 0.2
0.5 0.25
1.5 0.4
2.5 0.5
3.5 0.6
5.0 0.8
6.0 1.0
0 0.2
1 0.5
2.5 0.8
4 1,0
6 1.3
Danfoss type S; Satronic type S.
0
4
5
3
1
2
(394T1 - 397T1) 6 ÷ 7 mm
(380T1) 4 ÷ 5 mm
2 nd stage
Set-point
1.5
2.1
2,6
3.4
4.8
5.4
6.0
0.5
1.0
1.1
1.5
2.0
3.0
3.9
1.8
2.7
3.7
4.5
6.0
Fig. 12