The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001. Manufacturer's Declaration RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BImSchV release 26.01.2010”.
Information and general instructions Information and general instructions Information about the instruction manual 2.1.1 Introduction WARNING: MOVING PARTS The instruction manual supplied with the burner: This symbol indicates that you must keep limbs is an integral and essential part of the product and must not away from moving mechanical parts;...
Information and general instructions The system supplier must carefully inform the user about: 2.1.4 Delivery of the system and the instruction – the use of the system; manual – any further tests that may be required before activating the When the system is delivered, it is important that: system;...
Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with the type and pressure of the fuel, the voltage and frequency of the current regulations and directives, applying the known technical electrical power supply, the minimum and maximum deliveries for rules of safety and envisaging all the potential danger situations.
Technical description of the burner Test boiler The burner/boiler matching does not pose any problems if the Fig. 3 indicates the diameter and length of the test combustion boiler is CE type-approved and its combustion chamber dimen- chamber. sions are similar to those indicated in diagram (Fig. 3). Example RLS 400/E MX If the burner must be combined with a boiler that has not been CE Output 3000 kW...
Technical description of the burner Burner description 20 27 31 21 4 18 22 20120789 Fig. 4 Lifting eyebolts 20 Maximum gas pressure switch with pressure test point 21 QRI cell Fan motor 22 Air pressure test point pressure test point “+” Air gate valve servomotor 23 Air pressure test point pressure test point “-”...
The LMV51... is a safety device! WARNING Do not open, interfere with or modify the unit. Riello S.p.A. will not assume responsibility for any damage resulting from unauthorized interference! Risk of explosion! Incorrect configuration can lead to excessive...
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Technical description of the burner Electrical connection of ionization probe and flame detector • Observe the permissible cable lengths. It is important to achieve practically disturbance- and loss-free • The ionization probe is not protected against electrical shock signal transmission: hazard.
Technical description of the burner 4.13 Actuator (SQM48.4..) Warning notes To avoid injury to persons, damage to prop- erty or the environment, the following warn- ing notes should be observed! WARNING Do not open, interfere with or modify the ac- tuators! ...
Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner will The installation of the burner must be carried out be installed, and arranging the correct lighting of the environ- by qualified personnel, as indicated in this manual ment, proceed with the installation operations.
For boilers with front flue passes 1) (Fig. 12) or flame inversion chambers, protective fettling in refractory material 5) must be in- RLS 300/E MX M 18 serted between the boiler fettling 2) and the blast tube 4).
Installation Securing the burner to the boiler Prepare an adequate system of hoisting by hooking onto the rings 3)(Fig. 12). The burner-boiler seal must be airtight. Slip the thermal protection (standard equipment) onto the blast tube 4)(Fig. 12). WARNING ...
In order to guarantee that emissions do not vary, recommended RLS 300-400/E MX – Bergonzo type B5 60° and/or alternative nozzles specified by Riello in the Instruction – Fluidics type N2 50° and warning booklet should be used. RLS 500/E MX –...
(Fig. 17) against the required maximum output. Setting is pre-arranged in the plant for the maximum run (hole 3, Fig. 16). D3093 Fig. 16 N° holes D9222 RLS 400/E MX RLS 300/E MX 1200 1600 2000 2400 2800 3200 3600...
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Installation When dealing with boilers featuring a strong back pressure, if air delivery is insufficient even with the damper fully open, you can use a different setting to that illustrated in diagram (Fig. 17), do this by moving the tie rod onto the next highest hole numerically speaking, thus increasing the combustion head’s opening and hence air delivery.
Installation 5.12 Light oil supply 10 = Check valve (only Italy) Explosion danger due to fuel leaks in the pres- ence of a flammable source. 5.12.2 The loop circuit Precautions: avoid knocking, attrition, sparks and heat. A loop circuit consists of a loop of piping departing from and re- turning to the tank with an auxiliary pump that circulates the fuel Make sure that the fuel interception tap is closed under pressure.
Installation 5.12.4 Pressure regulator 5.12.5 Hydraulic system layout The pressure variator (Fig. 21), integrated into the valve unit of the oil circuit makes it possible to vary the pressure on return of the nozzle depending on the flow rate required. Governing of the pressure on return is obtained with the variation of a section by rotating the servomotor 23) (Fig.
Pump pressure It is calibrated in factory and generally it goes well: The time required for this operation depends upon the diameter RLS 300/E MX = 22 bar and length of the suction tubing. RLS 400/E MX = 20 bar...
Installation 5.13 Gas feeding Explosion danger due to fuel leaks in the pres- ence of a flammable source. Precautions: avoid knocking, attrition, sparks and WARNING 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.
Installation 5.13.2 Gas train 5.13.4 Gas pressure Type-approved in accordance with EN 676 and supplied sepa- The tables show minimum pressure losses along the gas supply rately from the burner. line depending on the maximum burner output operation. To select the correct model of the gas train, refer to the “burner- gas train combination”...
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Installation Column 2 Pressure loss at gas butterfly valve 2) (Fig. 30) with maximum opening: 90°. Calculate the approximate maximum output of the burner in this way: – subtract the combustion chamber pressure from the gas pressure measured at test point 1) (Fig. 30). –...
Installation 5.14 Electrical wiring Notes on safety for the electrical wiring The electrical wiring must be carried out with the electrical supply disconnected. Electrical wiring must be made in accordance with the regulations currently in force in the country of destination and by qualified personnel.
Installation 5.15 Calibration of the thermal relay The thermal relay (Fig. 32) is used to avoid damage to the motor owing to a strong increase in absorption or the lack of a phase. For the calibration 2), refer to the table given in electrical layout (Electrical connections set by installer).
Start-up, calibration and operation of the burner Start-up, calibration and operation of the burner Notes on safety for the first start-up The first start-up of the burner must be carried out Check the correct working of the adjustment, com- by qualified personnel, as indicated in this manual mand and safety devices.
Start-up, calibration and operation of the burner Fuel change There are three possible options for changing fuel: The AZL device determines the priority fuel. The fuel selected is with AZL device; shown on the display. using selector 3) (Fig. 34); By setting selector 3) (Fig.
Start-up, calibration and operation of the burner Air/fuel control and power modulation system The air/fuel and power modulation system installed on RLS burn- er series provides, a set of integrated functions ensuring top level energy and operational performance from the burner, both for single and grouped burners (e.g.
Start-up, calibration and operation of the burner Adjustment pressure switches 6.8.1 Air pressure switch - CO check Then turn the knob clockwise by 0.2 kPa (2 mbar) and repeat burner starting to ensure it is uniform. Adjust the air pressure switch after having performed all other If the burner locks out again, turn the knob anti-clockwise again burner adjustments with the air pressure switch set to the start of by 0.1 kPa (1 mbar).
Start-up, calibration and operation of the burner Operation sequence of the burner 6.9.1 Burner starting 6.9.2 Undesired shut-down during operation If the flame should accidentally go out during operation, the burn- NORMAL FIRING er will lock out within 1s. To check the full operating programme, refer to the LMV instru- ment reference handbook, supplied during the technical service training.
Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, safety, yield and duration of the burner. Disconnect the electrical supply from the burner It allows you to reduce consumption and polluting emissions and by means of the main system switch.
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Maintenance LIGHT OIL OPERATION GAS OPERATION Pump Gas leaks Delivery pressure must correspond with the table on pag. 20. Make sure that there are no gas leaks on the pipework between The depression must be less than 0.45 bar the gas meter and the burner. Unusual noise must not be evident during pump operation Gas filter If the pressure is found to be unstable or if the pump runs noisily,...
Maintenance Opening the burner Disconnect the electrical supply from the burner by means of the main system switch. DANGER Close the fuel interception tap. DANGER Wait for the components in contact with heat sources to cool down completely. Remove the tie rod 1) (Fig. 44) of the head movement lever, loosening nut 2).
Faults - Possible causes - Solutions Faults - Possible causes - Solutions If faults arise in ignition or operations, the burner performs a "safety stop", which is signalled by the red burner lockout LED. The display visualises alternately the lockout code and the rela- tive diagnostic.
Appendix - Accessories Appendix - Accessories Output power regulator kit for modulating operation With the modulating operation. the burner continually adapts the power to the request for heat. ensuring great stability for the param- eter controlled: temperature or pressure. Two components should be ordered: •...
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Appendix - Electrical panel layout Light oil assembly connector Key to electrical layout XPGM Maximum gas pressure switch connection plug Electronic cam XPGM1 Maximum gas pressure switch connector Display and operating unit Flame detectors connector Internal output power regulator RWF50 Air and gas servomotors connector External output power regulator RWF50 Light oil operation valve...