Riello RLS 70 Manual
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Riello RLS 70 Manual

Dual fuel light oil/ gas burners
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Installation, use and maintenance instructions
Dual fuel light oil/ gas burners
GB
Two stage operation
CODE
20159363
20159369
20169069
MODEL
RLS 70
RLS 100
RLS 130
20168481 (3) - 07/2021

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Summary of Contents for Riello RLS 70

  • Page 1 Installation, use and maintenance instructions Dual fuel light oil/ gas burners Two stage operation CODE MODEL 20159363 RLS 70 20159369 RLS 100 20169069 RLS 130 20168481 (3) - 07/2021...
  • 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 5.13 Electrical connections ..............................28 5.13.1 Supply cables and external connections passage .....................28 5.14 Calibration of the thermal relay ..........................29 5.15 Motor rotation ................................29 Start-up, calibration and operation of the burner ........................30 Notes on safety for the first start-up ...........................30 Adjustments prior to ignition (light oil) ........................30 6.2.1 1st and 2nd stage nozzles ............................30...

  • Page 5: Declarations

    Declarations Declarations Declaration of Conformity in accordance with ISO / IEC 17050-1 These products are in compliance with the following Technical Standards: • EN 12100 • EN 676 • EN 267 According to the European Directives: 2006/42/EC Machine Directive 2014/35/EU Low Voltage Directive EMC 2014/30/EU Electromagnetic Compatibility...

  • Page 6: Information And General Warnings

    Information and general warnings Information and general warnings Information about the instruction manual 2.1.1 Introduction DANGER: EXPLOSION The instruction manual supplied with the burner: This symbol signals places where an explosive  is an integral and essential part of the product and must not atmosphere may be present.

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

    Information and general warnings 2.1.4 Delivery of the system and the instruction  The system supplier must carefully inform the user about: – 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 safety electrical power supply, the minimum and maximum deliveries for technical rules and envisaging all the potential danger situations.

  • Page 9: Technical Description Of The Burner

    3 / 230V / 50Hz Voltage of auxiliaries: 230/50/60 230V / 50-60Hz 110/50/60 110V / 50-60Hz 3/380/50 220/60 BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Voltage Start-up Code RLS 70 3/380-220/60 Direct 20159363 RLS 100 3/220/60 Direct 20159369 RLS 130 3/220-380/60 Direct 20169069 20168481...

  • Page 10: Burner Categories - Countries Of Destination

    SE - FI - AT - GR - DK - ES - GB - IT - IE - PT - IS - CH - NO 2ELL (43.46 ÷ 45.3 MJ/m (0°C)) 2L - 2E - 2E(R)B LU - PL Technical data Model RLS 70 RLS 100 RLS 130 Power 232/465 ÷ 814 349/698 ÷ 1163 465/930 ÷ 1395 min - max Delivery kg/h 19/39 ÷...

  • Page 11: Electrical Data

    Technical description of the burner Electrical data Model RLS 70 RLS 100 RLS 130 Main electrical supply 3~ 220/380V 60Hz 3~ 220V 60Hz 3~ 220/380V 60Hz Auxiliary circuit electrical supply 1N~ 220V 60Hz Fan motor IE3 3490 3450 3450 220/380...

  • Page 12: Maximum Dimensions

    Note that to inspect the combustion head the burner must be moved backward and turned upward. The maximum dimension of the burner, without casing, when open is given by measurement I. D1176 Fig. 1 Model (mm) RLS 70 250-385 1161 2” RLS 100 250-385 1161 2”...

  • Page 13: Firing Rates

    Technical description of the burner Firing rates The burners RLS 70 - 100 - 130 can work in two ways: one-stage The firing rate value (Fig. 2) has been obtained or two-stage. considering an ambient temperature of 20 °C, an The MAXIMUM OUTPUT is chosen within area A (and B for RLS atmospheric pressure of 1013 mbar (approx.

  • Page 14: Test Boiler

    Technical description of the burner Test boiler The burner/boiler combination does not pose any problems if the In Fig. 3 you can see the diameter and length of the test boiler is EC approved and its combustion chamber dimensions combustion chamber. are similar to those indicated in the diagram (Fig.

  • Page 15: Burner Description

    Technical description of the burner 4.10 Burner description 20164424 Fig. 4 Combustion head Two types of burner lockout may occur: Ignition electrodes Screw for combustion head adjustment CONTROL BOX LOCKOUT: Pipe coupling if the control box 12)(Fig. 4) push-button lights up, it indicates that Screws to secure fan to pipe coupling the burner is in lockout.

  • Page 16: Electrical Panel Description

    Technical description of the burner 4.11 Electrical panel description 20164425 Fig. 5 Ignition transformer Switch for: ON-OFF operation Switch for: and 2 stage Motor contactor and thermal relay with reset button Led panel Terminal board for electrical connection Cable-grommets for external connections to be carried out by the installer Air pressure switch (differential type) Control box base...

  • Page 17: Control Box Rfgo-A22

    Technical description of the burner 4.12 Control box RFGO-A22 Important notes To avoid accidents, material or environmental damage, observe the following instructions! The control box is a safety device! Avoid opening ATTENTION or modifying it, or forcing its operation. The Manufacturer cannot assume any responsibility for damage resulting from unauthorised work! ...

  • Page 18: Servomotor (Lks 210

    Technical description of the burner 4.13 Servomotor (LKS 210 ...) Important notes S9697 To avoid accidents, material or environmental damage, observe the following instructions! Avoid opening, modifying forcing ATTENTION actuators.  All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel. ...

  • Page 19: Installation

    Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner is to The installation of the burner must be carried out be installed, and arranging for the environment to be illuminated by qualified personnel, as indicated in this manual correctly, proceed with the installation operations.

  • Page 20: Operating Position

    The position of the threaded holes can be marked using the Provide an adequate lifting system. thermal insulation screen supplied with the burner. Model (mm) Separate the combustion head from the rest of the burner RLS 70 275 - 325 M 12 (Fig. 11): RLS 100...

  • Page 21: Access To Head Internal Part

    Installation Access to head internal part In order to reach inside the combustion head (Fig. 12) proceed as D1122 follows:  remove the screw 1) and the internal part 2). Be careful as some drops of fuel may leak out during this phase.

  • Page 22: Nozzle Installation

    The burner complies with the emission requirements of the EN D1122 267 standard. In order to guarantee that emissions do not vary, recommended and/or alternative nozzles specified by Riello in the Instruction and warning booklet should be used. It is advisable to replace the nozzle once a year during periodical maintenance.

  • Page 23: Combustion Head Adjustment

    Installation Combustion head adjustment 5.9.1 Adjustments prior to ignition (with light oil) The adjustment of the combustion head depends only on the maximum output of the burner in the 2nd stage.  Turn the screw 5)(Fig. 18) until the notch indicated by the diagram (Fig.

  • Page 24: Light Oil Supply

    Installation 5.10 Light oil supply Explosion danger due to fuel leaks in the L [m] +/- H presence of a flammable source. Ø [mm] Precautions: avoid knocking, attrition, sparks and heat. Make sure the fuel shut-off valve is closed before performing any operation on the burner.

  • Page 25: Hydraulic Connections

    Installation 5.10.2 Hydraulic connections 5.10.3 Hydraulic circuit diagram  Make sure that the hoses to the pump supply and return line are installed correctly. CAUTION The pumps are equipped with a by-pass that connects return line with suction line. They are installed on the burner with the by- pass closed by screw 6)(Fig.

  • Page 26: Pump

    Installation 5.11 Pump 5.11.1 Technical data Pump SUNTEC AJ 6 CC Min. delivery rate at 12 bar pressure 220 kg/h Delivery pressure range 10 - 20 bar Max. suction depression 0.45 bar Viscosity range 2.8 - 75 cSt. Max. light oil temperature 60°C Max.

  • Page 27: Gas Supply

    Installation 5.12 Gas supply Explosion danger due to fuel leaks in the MBC “threaded” presence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure the fuel shut-off valve 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.

  • Page 28: Gas Train

    Installation 5.12.2 Gas train 5.12.4 Gas pressure Type-approved in accordance with EN 676 and supplied Tab. K indicates the pressure drops of the combustion head and separately from the burner. gas butterfly valve, on the basis of the burner operating output. 1 p (mbar) 5.12.3 Gas train installation Disconnect the electrical power using the main...
  • Page 29 Installation Example RLS 100 with natural gas G20: 2nd stage operation Gas pressure at test point 1)(Fig. 29) = 11.2 mbar S9690 Pressure in combustion chamber 2 mbar 11.2 - 2 9.2 mbar A pressure of 9.2 mbar, column 1, corresponds in Tab. K to an output of 955 kW.

  • Page 30: Electrical Connections

    Installation 5.13 Electrical connections 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.

  • Page 31: Calibration Of The Thermal Relay

    Installation 5.14 Calibration of the thermal relay The thermal relay serves to avoid damage to the motor due to an excessive absorption increase or if a phase is missing. D8685 In case of 220V power supply, change the motor connection from star to triangle and replace the thermal relay with the one sup- plied.

  • Page 32: 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, by qualified personnel, as indicated in this manual command and safety devices.

  • Page 33: Adjustments Prior To Ignition (Gas)

    Start-up, calibration and operation of the burner Adjustments prior to ignition (gas) Combustion head adjustment is already described on page 21. Before starting up the burner, it is good practice to In addition, the following adjustments must also be made: adjust the gas train so that ignition takes place in ...

  • Page 34: Change Of Fuel

    Start-up, calibration and operation of the burner Change of fuel There is a change of fuel options:  with selector 9)(Fig. 5 on page 14); Change the fuel only when the burner is off. ATTENTION Burner adjustment (gas) The optimum adjustment of the burner requires an analysis of –...

  • Page 35: Servomotor Adjustment

    Start-up, calibration and operation of the burner Servomotor adjustment The servomotor (Fig. 38) adjusts the air damper. Summarising, the lever must intervene according to the following sequence: Do not alter (for the moment) the factory setting for the 4 levers. A graduated label with 4 coloured sectors shows the intervention 1°...

  • Page 36: Pressure Switch Adjustment

    Start-up, calibration and operation of the burner 6.10 Pressure switch adjustment 6.10.1 Air pressure switch - check CO 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 37: Operation Sequence Of The Burner

    Start-up, calibration and operation of the burner 6.11 Operation sequence of the burner 6.11.1 Burner start-up Burner start-up 20168708 TL closes, fan motor starts, (in case of oil operation, pump motor starts) servomotor starts, maximum opening. air damper is at its maximum opening servomotor closing phase starts at the minimum output.

  • Page 38: Final Checks (With Burner Operating)

    Start-up, calibration and operation of the burner 6.12 Final checks (with burner operating)   Open the thermostat/pressure switch TL The burner must stop  Open the thermostat/pressure switch TS  Turn the knob of the gas maximum pressure switch to the ...

  • Page 39: Maintenance

    Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, Before carrying out any maintenance, cleaning or checking safety, yield and duration of the burner. operations: It allows you to reduce consumption and polluting emissions and to keep the product in a reliable state over time.
  • Page 40 Maintenance Flame presence check LIGHT OIL OPERATION Check the level of the flame detection signal with the “Check mode” function from the flame control: the LEDs from 2 to 6 Pump indicate the flame signal level, respectively. See "LED indicator The delivery pressure must comply with the table on page 24.

  • Page 41: Combustion Control (Gas)

    Maintenance 7.2.5 Safety components GAS OPERATION The safety components should be replaced at the end of their life cycle indicated in the Tab. O. Gas leaks Make sure that there are no gas leaks on the pipe between the The specified life cycles do not refer to the warranty terms gas meter and the burner.

  • Page 42: Opening The Burner

    Maintenance Opening the burner 20164423 Disconnect the electrical supply from the burner by means of the main system switch. DANGER Close the fuel shut-off valve. DANGER Wait for the components in contact with heat sources to cool down completely.  Loosen the screws 1)(Fig. 45) and remove the cover 2). ...

  • Page 43: Led Indicator And Special Function

    LED indicator and special function LED indicator and special function Description of LED lamps It turns on when the fan motor is powered (T6) and blinks when RUN/CHECK switch is set to “CHECK” during damper movement phases, PTFI AND MTFI. S9740 It blinks when the air damper is moving towards the maximum opening position until the Damper...

  • Page 44: Led Lamps: Burner Operating Status

    LED indicator and special function LED lamps: burner operating status OPERATING STATUSES INDICATED BY LEDS DURING NORMAL OPERATION AND CHECK MODE Operation Damper Damper Modulation Ignition Flame Status LED ● = ON open closed Icon S9740 S9741 S9742 S9743 S9744 S9745 S9746 Power OFF/ON...

  • Page 45: Problems - Causes - Remedies Signalled By Led Indicators

    Problems - Causes - Remedies signalled by LED indicators Problems - Causes - Remedies signalled by LED indicators When an emergency stop occurs, the control device LEDs The regulation prohibits the system from allowing indicate the cause of the stop. more than 5 remote reset attempts within a 15 The terminal T3 is not powered.
  • Page 46 Problems - Causes - Remedies signalled by LED indicators Error / RFGO LED lock-out codes Faults LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 Operation Open Closed Auto Ignition Flame Status LED ● = ON damper damper Icon...
  • Page 47 Problems - Causes - Remedies signalled by LED indicators Faults LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 UV: Internal fault ● ● Supervisor processor fault ● ● ● Main processor fault ● ● ●...
  • Page 48 Problems - Causes - Remedies signalled by LED indicators Faults Cause Solution UV: no flame at the end of the Inspect the system, check the gas pressure, check the flame sensor, check the wiring, No flame at the end of the 2 safety time safety time (MTFI) etc.
  • Page 49 Problems - Causes - Remedies signalled by LED indicators Faults Cause Solution UV: false flame during operation False flame detected before ignition Check the flame sensor FR: false flame during operation Check the wiring False flame detected before ignition Check the flame sensor Make sure that earthing is appropriate T8 inlet fault The system detected the presence of...

  • Page 50: A Appendix - Accessories

    Appendix - Accessories Appendix - Accessories Extended head Kit (for short head versions only) L (mm) L (mm) Burner Code Standard head Head obtainable with the kit RLS 70 3010345 RLS 100 3010346 RLS 130 3010347 Soundproofing box kit Burner Type...

  • Page 51: B Appendix - Electrical Panel Layout

    Appendix - Electrical panel layout Appendix - Electrical panel layout Index of layouts Indication of references Operational layout RFGO-A22 operational layout RFGO-A22 operational layout RFGO-A22 operational layout Electrical connection set by the installer Electrical connection set by the installer Indication of references / 1 .
  • Page 52 Appendix - Electrical panel layout 20168481...
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  • Page 61 Appendix - Electrical panel layout 20168481...
  • Page 62 Appendix - Electrical panel layout WIRING DIAGRAM KEY Control box Protection fuses for three line Thermal relay for fan motor Remote lockout signal Light signalling leak detection control device lock-out Fan motor contactor Relay External switch for ON/OFF burner Pump motor Fan motor Air pressure switch PGMin...
  • Page 64 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.riello.com Subject to modifications...

This manual is also suitable for:

Rls 100Rls 130201593632015936920169069

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