Via Pilade Riello, 7 37045 Legnago (VR) Product: Dual fuel light oil/gas burner Model: RLS 70 - 100 - 130 These products are in compliance with the following Technical Standards: EN 676 EN 267 EN 12100 and according to the European Directives:...
Two types of burner failure may occur: Control Box Lock-out: if the control box 12)(A) pushbutton lights up, it indicates that the burner is in lock-out. To reset, press the pushbutton. RLS 70 1405 1000 Motor trip: release by pressing the pushbutton RLS 100...
FIRING RATES (A) RLS 70 The burners can work in two ways: one-stage and two-stage. MAXIMUM OUTPUT must be selected in area In order to utilize also area B (RLS 130) it is nec- essary to perform the calibration of the combus- tion head as explained on page 8.
In order to guarantee that emissions do not vary, 5.50 21.1 23.3 25.4 276.3 recommended and/or alternative nozzles speci- 6.00 23.1 25.5 27.7 302.4 fied by Riello in the Instruction and warning 6.50 25.0 27.6 30.0 327.3 booklet should be used. 7.00 26.9 29.7 32.3 352.3 7.50...
Refit the burner to the slide bars 3)(C) at SETTING THE COMBUSTION HEAD approximately 100 mm from the sleeve 4) - burner positioned as shown in fig. (B)p.6 - insert the ignition electrode cables and then slide the burner up to the sleeve so that it is positioned as shown in fig.
ELECTRICAL SYSTEM D3493 ELECTRICAL SYSTEM FACTORY-SET NOTE • The burners leaves the factory preset for 400V power supply. • The burners leave the factory preset for 400V power supply. If 230V power supply is used, change the fan motor connection •...
"MAX". Even if the scale of the thermal cut-out does not include rated motor absorption at 400V, protec- D867 tion is still ensured in any case. RLS 70 RLS 100 RLS 130 230 V 400 V...
LIGHT OIL SUPPLY (A) The burner is equipped with a self-priming pump which is capable of feeding itself within the limits listed in the table at the side. The tank higher than the burner A The distance "P" must not exceed 10 meters in order to avoid subjecting the pump's seal to excessive strain;...
OPERATION SERVOMOTOR The optimum calibration of the burner requires an analysis of the flue gases at the boiler outlet and interventions on the following points. • 1st and 2nd stage nozzles LEVER See the information listed on page 11. • Combustion head The adjustment of the combustion head already BLACK carried out (page 8) need not be altered unless...
GAS FEEDING Explosion danger due to fuel leaks in the presence of a flammable source. Precautions: avoid knocking, attri- tion, sparks and heat. Make sure that the fuel interception tap is closed before performing any operation on the burner. The fuel supply line must be installed by qualified personnel, in compliance with current standards and laws.
GAS PRESSURE 1 p (mbar) The adjacent table shows minimum pressure losses along the gas supply line depending on the burner output in 2nd stage operation. The values shown in the table refer to: Natural gas G20 PCI 9.45 kWh/Sm (8.2 Mcal/Sm LPG G31 PCI 27 kWh/Sm (23,2 Mcal/Sm...
ADJUSTMENTS BEFORE FIRST FIRING (gas MIN GAS PRESSURE SWITCH AIR PRESSURE SWITCH operation) Adjustment of the combustion head has been illustrated on page 8. In addition, the following adjustments must also be made: - Open manual valves up-line from the gas train. - Adjust the minimum gas pressure switch to the start of the scale (A).
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1 - 2ND STAGE OUTPUT 2nd stage output of the burner must be set within the firing rate range shown on page 5. Set switch 2)(A) to the 2nd stage position: the 1st stage Burner OFF servomotor will open the air gate valve at the previously set value for oil and will control the 2nd stage Burner ON...
4 - AIR PRESSURE SWITCH (A) - CO CHECK AIR PRESSURE SWITCH Adjust the air pressure switch after having per- formed all other burner adjustments with the air pressure switch set to the start of the scale (A). With the burner operating in 1st stage, increase adjustment pressure by slowly turning the rela- tive knob clockwise until the burner locks out.
MAINTENANCE FLAME INSPECTION WINDOW NOTES ON SAFETY FOR THE MAINTE- NANCE The periodic maintenance is essential for the good operation, safety, yield and duration of the burner. It allows you to reduce consumption and pollut- ing emissions and to keep the product in a relia- ble state over time.
Gas leaks Make sure that there are no gas leaks on the pipework between the gas meter and the burner. Gas filter Change the gas filter when it is dirty. Burner Check for excess wear or loose screws. Also make sure that the screws securing the electri- cal leads in the burner connections are fully tightened.
FAULTS - POSSIBLE CAUSES - SOLUTIONS SYMBOL FAULT PROBABLE CAUSE SUGGESTED REMEDY The burner does not start - No electrical power supply ......Close all switches - Check connections - A limiter or safety control device is open.