Riello 40 Series - Combustion Adjustment; Electrodes Setting; Nozzles Recommended; Pump Pressure

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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
2
concentration in the flue gases, their temperatures and the average temperature of the water in the boiler.
To suit the required appliance output, fit the proper nozzle, then adjust the pump pressure and the air
damper opening in accordance with the following schedule.
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 light oil and room temperature of 20 °C.
4.2 NOZZLES RECOMMENDED
Monarch type R - NS; Delavan type W - E; Steinen type Q - H; Danfoss type H - S.
4.3 PUMP PRESSURE
8 bar: pressure suitable for kerosene in most cases.
10 bar: maximum pressure for kerosene.
INCREASE PRESSURE
12 bar: pressure suitable for light oil in most cases.
14 bar: maximum pressure light oil.
4.4 ELECTRODES SETTING, (see fig. 10)
TYPE
Nozzle
Pump
pressure
Burner
output
Air damper
adjustment
GPH Angle bar kg/h ± 4% Set-point
510 T1K
0.50 60° 7 1.40 1.6
0.50 60° 8 1.50 1.7
0.60 60° 8 1.79 2.2
0.65 60° 8 1.94 2.4
0.75 60° 8 2.20 3.3
510 T3K
0.65 60° 8.5 2.00 2.3
0.75 60° 8 2.24 2.6
0.85 60° 8 2.54 3.4
1.00 60° 8 3.00 8
KEROSENE
LIGHT OIL
Before removing or assembling the
nozzle, loosen the screw (A) and
move the electrodes ahead.
ATTENTION
4 ± 0.3 mm
IMPORTANT:
THESE DIMENSIONS
MUST BE OBSERVED
D5230
A
Fig. 10
2 – 2.5 mm