Installation, use and maintenance instructions Light oil - kerosene burner One stage operation CODE MODEL TYPE 3747455 G20KI 474T52 2902403 (4) - 01/2008
TECHNICAL DATA Thermal power – output 95 – 213 kW – 8 – 18 kg/h Fuel Light oil and kerosene Electrical supply single phase, Motor run current 1.4 A – 2750 rpm – 288 rad/s Capacitor 5 μF Ignition transformer secondary 8 kV – 16 mA Pump maximum pressure 14 bar (203 psi) Absorbed electrical power 0.
Pressure in the combustion chamber – mbar FIRING RATE 1.8 1.2 0.
INSTALLATION BOILER FIXING ³ Put on the flange (1) the screw and two nuts, (see fig. 2). ³ Widen, if necessary, the insulating gasket holes (5), (see fig. 3). ³ Fix the flange (1) to the boiler door (4) using screws (2) and (if necessary) the nuts (3) interposing the insulating gasket (5), (see fig. 4). MAINTENANCE POSITION Access to the combustion head, diffuser disc / electrodes unit and nozzle, (see fig. 5). ³ Remove the burner out of the boiler, after loosing the fixing nut to the flange.
HYDRAULIC SYSTEM WARNING ONLY FOR TWO PIPE SYSTEM: before starting the burner make sure that the return pipe-line is not clogged: any obstruction would cause the pump seals to break. WARNING: The pump is supplied for use with a one pipe system. For use on a two pipe system, it is necessary to screw the by-pass screw (A), hang up to the pump. L meters max. 4 m H D5219 min. 0.1 m H meters I.D. 10 mm 10 20 40 60 20 40 80 100 A D5199 max. 4 m H H = Difference of level. L = Max.
BURNER ELECTRICAL WIRING 240V N ~ 50Hz L WARNING Do not exchange the neutral with the phase. Main switch Neutral T6A 4 5 6 Blue Valve Black Capacitor T Safety thermostat 7 8 9 Terminal block of control-box 530SE * Brown 3 L White (50V) 2 Limit thermostat Remote lock-out signal (240V - 0.5A max.), if required Blue 1 Brown Black CARRIED-OUT IN THE FACTORY N T M ~ Motor D5228 NOTES – Wires of 1 mm2 section.
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 CO2 concentration in the flue gases, their temperatures and the average temperature of the water in the boiler.
3 COMBUSTION HEAD SETTING This is done when fitting the nozzle, with the blast tube removed. It depends on the output of the burner and is carried out by rotating the regulating rod, till the terminal plane of the blast tube is level with the set-point, as indicated in the schedule. In the sketch below, the combustion head is set for an output of 3.50 GPH at 12 bar (for light oil) or 5.00 GPH at 8 bar (for kerosene). The shutter is level with set-point 3.5, as required by the schedule at page 6.
4 AIR DAMPER ADJUSTMENT: 1 2 The mobile air damper (1) operated by the jack (2) assures the complete opening of the air intake. The regulation of the air-rate is made by adjusting the fixed air damper (3), after loosing the screws (4). When the optimal regulation is reached, screw tight the screws (4) to assure a free movement of the mobile air damper (1). 3 The settings indicated in the schedule refer to the burner with its metal cover fitted and the combustion chamber with “zero” depression.
START-UP CYCLE Normal Lock-out, due to light-failure Thermostat Motor Ignition transformer Valve Flame Lock-out lamp ~ 12s ~ 12s ~ 5s D5229 ONLY FOR LIGHT OIL ADJUSTMENTS TO AVOID FLAME DETACHMENT AT BURNER IGNITION 1) CORRECT POSITIONING OF THE ELECTRODES MOVE THE ELECTRODE HOLDER BACKWARDS TO THE END 4 ± 0.3 mm D5288 A 2) NOZZLE: ATOMIZING ANGLE: Choose 60° nozzle. 3) PUMP - SETTING 6.5 ± 0.5 mm When the temperature of the light oil decreases below +5 °C, increase the pressure to 14 bar.
RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.rielloburners.
