Riello RLS 120/EV MX TC FS2 Installation, Use And Maintenance Manual
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Riello RLS 120/EV MX TC FS2 Installation, Use And Maintenance Manual

Riello RLS 120/EV MX TC FS2 Installation, Use And Maintenance Manual

Dual fuel gas oil/gas burner
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Installation, use and maintenance instructions
Dual fuel gas oil/gas burner
GB
Progressive two-stage or modulating operation gas side/two-stage light oil side
CODE
MODEL
TYPE
20092413
RLS 120/EV MX TC FS2
780T2
20093097 (2) - 05/2015

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Summary of Contents for Riello RLS 120/EV MX TC FS2

  • Page 1 Installation, use and maintenance instructions Dual fuel gas oil/gas burner Progressive two-stage or modulating operation gas side/two-stage light oil side CODE MODEL TYPE 20092413 RLS 120/EV MX TC FS2 780T2 20093097 (2) - 05/2015...
  • Page 2 Translation of the original instructions...

  • Page 3: Table Of Contents

    Contents Declarations....................................3 Information and general warnings............................4 Information about the instruction manual ........................4 2.1.1 Introduction.................................. 4 2.1.2 General dangers................................4 2.1.3 Other symbols ................................4 2.1.4 Delivery of the system and the instruction manual...................... 5 Guarantee and responsibility............................5 Safety and prevention................................
  • Page 4 Contents 5.15.3 Gas train installation ..............................25 5.15.4 Gas pressure ................................25 5.16 Electrical wiring ................................27 5.16.1 Supply cables and external connections passage .....................27 5.16.2 Shielding the connections ............................28 5.16.3 Inverter connection ..............................28 5.16.4 Adjusting the speed sensor............................28 Start-up, calibration and operation of the burner ........................29 Notes on safety for the first start-up ...........................29 Adjustments prior to ignition (light oil) ........................29 6.2.1...

  • Page 5: Declarations

    Via Pilade Riello, 7 37045 Legnago (VR) Product: Dual fuel gas oil/gas burner Model: RLS 120/EV MX TC FS2 These products are in compliance with the following Technical Standards: EN 676 EN 267 EN 12100 and according to the European Directives:...

  • Page 6: Information And General Warnings

    Information and general warnings Information and general warnings 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;...

  • Page 7: Delivery Of The System And The Instruction Manual

    Information and general warnings  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;...

  • Page 8: Safety And Prevention

    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.

  • Page 9: Technical Description Of The Burner

    3N / 400V-230V / 50Hz Voltage of auxiliaries: 230/50/60 230V / 50-60Hz 110/50/60 110V / 50-60Hz 3/400/50 230/50/60 BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Voltage Code RLS 120/EV MX TC FS2 3 ~ 400V - 50Hz 20092413 Tab. A 20093097...

  • Page 10: Burner Categories - Countries Of Destination

    SE - FI - AT - GR - DK - ES - GB - IT - IE - PT - IS - CH - NO 2ELL 2E(R)B LU - PL Tab. B Technical data Model RLS 120/EV MX TC FS2 Power min - max 300/600 - 1200 Delivery kg/h 25/50 - 101 - Light oil, max.

  • Page 11: Maximum Dimensions - Approximate Measurements

    Bear in mind that inspection of the combustion head requires the burner to be opened and the rear part drawn back on the slide bars. D2300 Fig. 1 RLS 120/EV MX TC FS2 1039 1520 Tab. E Firing rate During operation, burner output varies between: The firing rate was obtained at an ambient tem- ...

  • Page 12: Test Boiler

    Technical description of the burner Test boiler The burner/boiler combination does not pose any problems if the MODULATING RATIO boiler is EC approved and its combustion chamber dimensions The modulating ratio, obtained in the test boilers, according to are similar to those indicated in the diagram (Fig. 3). standard (EN 676 for gas, EN 267 for light oil), is of: If the burner must be combined with a boiler that has not been EC –...

  • Page 13: Burner Description

    Technical description of the burner 4.11 Burner description 20093978 Fig. 5 Flame stability disk 36 Ignition transformer Ignition electrodes 37 Electronic cam transformer Combustion head 38 Clamp for cable shielding Gas pressure test point and head fixing screw 39 Support rail for fuse holder and available for accessories Screws to secure fan to pipe coupling 40 Rpm sensor Slide bars for opening the burner and inspecting the com-...

  • Page 14: Control Box For The Air/Fuel Ratio (Lmv52

    The LMV52 control box... is a safety device! Avoid opening or modifying it, or forcing its opera- WARNING tion. Riello S.p.A. cannot assume any responsibility for damage resulting from unauthorised interven- tions! Risk of explosion! An incorrect configuration can provoke fuel over-...
  • Page 15 Technical description of the burner • Respect the allowed cable lengths. Electrical connection of ionisation probe and flame detector It is important for signal transmission to be almost totally free • The ionisation probe is not protected against the risk of elec- of any disturbances or loss: trocution.

  • Page 16: Servomotor (Sqm45.2

    Technical description of the burner 4.13 Servomotor (SQM45.2..) Warnings To avoid accidents, material or environmen- tal damage, observe the following instruc- tions! WARNING Avoid opening, modifying or forcing the ac- tuators.  All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel. ...

  • Page 17: Installation

    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 man- ment, proceed with the installation operations.

  • Page 18: Operating Position

    For boilers with a water-cooled front piece, a refractory lining 11)- 12)(Fig. 12) is not necessary, unless expressly requested by the D455 Fig. 10 boiler manufacturer. RLS 120/EV MX TC FS2 325 - 368 Tab. H Lifting the burner To lift the burner, proceed as follows: The manufacturer declines any responsibility for ...

  • Page 19: Securing The Burner To The Boiler

    Installation Securing the burner to the boiler Separate the combustion head from the rest of the burner. To do  Fix the flange 9)(Fig. 12) to the plate of the boiler interposing this, proceed as follows: the insulating gasket 8) supplied. ...

  • Page 20: Nozzle Installation

    267 standard. In order to guarantee that emissions do not vary, 12 bar 10 bar 12 bar 14 bar recommended and/or alternative nozzles specified by Riello in the Instruction and warning booklet should be used. 19,2 21,2 23,1 251,4...

  • Page 21: Nozzle Assembly

    Installation 5.9.2 Nozzle assembly Remove screw 1)(Fig. 14) and extract the internal part 2). Fit two nozzles with the box spanner 1)(Fig. 15) (16 mm), after having removed the plastic plugs 2), fitting the spanner through the central hole in the flame stability disk or loosen screws 1)(Fig.

  • Page 22: Burner Closing

    Installation 5.11 Burner closing Refit the burner on the slide bars 3)(Fig. 19) at approximately  Re-couple the articulated coupling 7) to the graduated 100 mm from the pipe coupling 4) - burner in the position shown sector 5). in Fig. 12. ...

  • Page 23: Light Oil Supply

    Installation 5.12 Light oil supply It is good practice to ensure that the return and suction lines enter Explosion danger due to fuel leaks in the pres- the burner from the same height; in this way it will be less proba- ence of a flammable source.

  • Page 24: Hydraulic Connections

    Installation 5.12.3 Hydraulic connections Follow the instructions below:  tighten the flexible hoses with the supplied Make sure that the flexible hoses to the pump sup- gaskets.  The pump will break down immediately if it is ply and return line are installed correctly. WARNING run with the return line closed and the by- CAUTION...

  • Page 25: Priming Pump

    Installation 5.13.1 Priming pump The operation is possible because the pump is already full of fuel when it leaves the factory. If Before starting the burner, make sure that the the pump has been drained, fill it with fuel tank return line is not clogged. through the opening on the vacuum meter prior to WARNING Obstructions in the line could cause the sealing...

  • Page 26: Gas Feeding

    Installation 5.15 Gas feeding Explosion danger due to fuel leaks in the pres- ence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure the fuel interception tap is closed be- fore performing any operation on the burner. The fuel supply line must be installed by qualified personnel, in compliance with current standards and laws.

  • Page 27: Gas Train

    Installation 5.15.2 Gas train Approved according to standard EN 676 and provided separately from the burner. To select the correct gas train model, refer to the supplied “Burn- er-gas train combination” manual. 5.15.3 Gas train installation Disconnect the electrical power using the main switch.
  • Page 28 Installation Example with G 20 natural gas: Maximum output operation Gas pressure at test point 1)(Fig. 30) 18.0 mbar Pressure in combustion chamber 3.0 mbar 18.0 - 3.0 15.0 mbar A pressure of 15.0 mbar, column 1, corresponds in Tab. L to an output of 1020 kW.

  • Page 29: Electrical Wiring

    Installation 5.16 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. Refer to the wiring diagrams. ...

  • Page 30: Shielding The Connections

    Installation 5.16.2 Shielding the connections It is important to shield the motor cable 1) as indi- cated in (Fig. 32). WARNING 20079045 Fig. 32 5.16.3 Inverter connection For specific information regarding the inverter electrical connections, refer to the wiring dia- grams.

  • Page 31: Start-Up, Calibration And Operation Of The Burner

    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.

  • Page 32: Operations Before Start-Up

    Start-up, calibration and operation of the burner Operations before start-up Bleed the air from the piping of the gas train, connecting a plastic tube to the pressure test point 1)(Fig. 36) of the minimum gas pressure switch. Take the vent tube outside the building so you can notice the smell of gas.

  • Page 33: Change Of Fuel

    Start-up, calibration and operation of the burner Change of fuel There are three options of change of fuel: with the AZL device with selector “OIL-EXT-GAS” (Fig. 38) with a remote selector connected to the main terminal board. Placing the selector switch to “EXT” position, activates the re- mote selection of the fuel.

  • Page 34: Burner Adjustment

    Start-up, calibration and operation of the burner 6.11 Burner adjustment 6.11.1 Firing output Air adjustment If necessary vary the degrees of the air servomotor. According to the regulation EN 676. Burners with MAX output up to 120 kW 6.11.3 Minimum output Ignition can be performed at the maximum operation output level.

  • Page 35: Final Calibration Of The Pressure Switches

    Start-up, calibration and operation of the burner 6.12 Final calibration of the pressure switches 6.12.1 Air pressure switch Adjust the air pressure switch after performing all other burner adjustments with the air pressure switch set to the start of the scale (Fig.

  • Page 36: Minimum Oil Pressure Switch

    Start-up, calibration and operation of the burner 6.12.4 Minimum oil pressure switch The minimum oil pressure switch (Fig. 43) is calibrated in the fac- tory at 18 bar. If the oil pressure falls below this value in the de- livery line, the pressure switch stops the burner. The burner restarts automatically if the pressure goes above 18 bar after the burner starts.

  • Page 37: Maintenance

    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.

  • Page 38: Opening The Burner

    Maintenance Opening the burner  Loosen the screws 1) and remove the hood 2). Disconnect the electrical supply from the burner  Remove the screws 7) from the two slide bars 4). by means of the main system switch.  Assemble the two extensions 9) on the slide bars 4). ...

  • Page 39: Faults - Possible Causes - Solutions

    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 of the operator panel visualises alternately the lock- out code and the relative diagnostic.

  • Page 40: A Appendix - Accessories

    Appendix - Accessories Appendix - Accessories Long head kit Standard head length Extended head length Burner Code (mm) (mm) RLS 120/EV MX TC FS2 3010360 Spacer kit Burner Thickness (mm) Code RLS 120/EV MX TC FS2 3000722 Continuous purging kit...

  • Page 41: B Appendix - Electrical Panel Layout

    Appendix - Electrical panel layout Appendix - Electrical panel layout Index of layouts Indication of references Operational layout LMV52..operational layout LMV52..operational layout LMV52..operational layout LMV52..operational layout LMV52..operational layout LMV52..operational layout LMV52..operational layout Operational layout Electrical connections set by installer Electrical connections set by installer Electrical connections set by installer...
  • Page 42 Appendix - Electrical panel layout 20093097...
  • Page 43 Appendix - Electrical panel layout 20093097...
  • Page 44 Appendix - Electrical panel layout 20093097...
  • Page 45 Appendix - Electrical panel layout 20093097...
  • Page 46 Appendix - Electrical panel layout 20093097...
  • Page 47 Appendix - Electrical panel layout 20093097...
  • Page 48 Appendix - Electrical panel layout 20093097...
  • Page 49 Appendix - Electrical panel layout 20093097...
  • Page 50 Appendix - Electrical panel layout 20093097...
  • Page 51 Appendix - Electrical panel layout 20093097...
  • Page 52 Appendix - Electrical panel layout 20093097...
  • Page 53 Appendix - Electrical panel layout 20093097...
  • Page 54 Appendix - Electrical panel layout 20093097...
  • Page 55 Appendix - Electrical panel layout Key to electrical panel layout Burner components Control box power supply transformer Boiler components Thermostat/limit pressure switch Control box Safety thermostat/pressure switch Display and calibration unit Oil valve 1st stage Probe with output under current DC 4..20 mA Oil valve 2nd stage Device with output under current DC 4..20 mA to Oil safety valve...
  • Page 56 RIELLO S.p.A. I-37045 Legnago (VR) Tel: +39.0442.630111 http:// www.riello.it http:// www.riello.com Subject to modifications...

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