Riello RLS Series Installation, Use And Maintenance Instructions
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Riello RLS Series Installation, Use And Maintenance Instructions

Dual fuel light oil/gas burners, progressive two-stage or modulating operation
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Installation, use and maintenance instructions
Dual fuel Light oil/Gas burners
GB
Progressive two-stage or modulating operation
Code
Model
Type
20019910
RLS 800/E US1
19910X
20020804 (3) - 06/2010

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Summary of Contents for Riello RLS Series

  • Page 1 Installation, use and maintenance instructions Dual fuel Light oil/Gas burners Progressive two-stage or modulating operation Code Model Type 20019910 RLS 800/E US1 19910X 20020804 (3) - 06/2010...

  • Page 3: Table Of Contents

    Index Information and general instructions ..............3 Information about the instruction manual .
  • Page 4 Index Combustion air adjustment................22 Air/fuel control and power modulation system .

  • Page 5: Information And General Instructions

    Information and general instructions Information and general instructions Information about the instruction manual 1.1.1 Introduction 1.1.3 Danger: live components The instruction manual supplied with the burner: This symbol indicates operations which, if not carried  is an integral and essential part of the product and must not out correctly, lead to electric shocks with lethal con- be separated from it;...

  • Page 6: Guarantee And Responsibility

    Information and general instructions Guarantee and responsibility guarantees its new products from the installation date, 1.2.1 Owner’s responsibility in accordance with the regulations in force and/or the sales con- Please pay attention to the Safety Warnings contained within tract. At the moment of the first start-up, check that the burner is this instruction manual.

  • Page 7: Safety And Prevention

    Safety and prevention Safety and prevention Introduction Personnel training burners have been designed and built in compli- The user is the person, body or company that has acquired the ance with current regulations and directives, applying the known machine and intends to use it for the specific purpose. He is re- technical rules of safety and envisaging all the potential danger sponsible for the machine and for the training of the people situations.

  • Page 8: Technical Description Of The Burner

    Technical description of the burner Technical description of the burner Technical data MODEL RLS 800/E US1 3885 - 8880 Output min. - max. MBtu/hr 13256 - 30300 Oil fuel Oil #2 min. - max. - max. delivery 46 - 210 Gas fuel Natural gas - max.

  • Page 9: Overall Dimensions

    Technical description of the burner Overall dimensions The maximum dimensions of the burner are given in Fig. 2. Bear in mind that inspection of the combustion head requires the burner to be opened by rotating the rear part on the hinge. The overall dimensions of the burner when open are indicated by L and R.

  • Page 10: Firing Rates

    Technical description of the burner Firing rates Maximum output must be selected in the range over the The firing rate was obtained considering a room hatched line of the diagram. temperature of 68 °F and an atmospheric pressure of 394 “wc (approx. 0 ft above sea level), with the Minimum output must not be lower than the minimum limit WARNING combustion head adjusted.

  • Page 11: Burner Components

    Technical description of the burner Burner components 3.6.1 Burner description OIL PIPING VIEW OIL PIPING VIEW Fig. 5 D10072 Lifting eyebolts Fireye infrared scanner Air pressure test point pressure test point “+” Fan motor Oil modulator and gas butterfly valve servomotor Air gate valve servomotor Pump Gas pressure test point...

  • Page 12: Panel Board Description

    Technical description of the burner 3.6.2 Panel board description Ignition transformer Main supply terminal strip Entry for power cables and external leads Air pressure switch Terminal for shielded cables Warning: used only to avoid a break in the cable’s shielding, hence do not overtighten.

  • Page 13: Actuators

    Technical description of the burner Actuators Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes should be observed! WARNING Do not open, interfere with or modify the actua- tors!  All activities (mounting, installation and service work, etc.) must be performed by qualified staff.

  • Page 14: Installation

    Installation Installation Notes on safety for the installation Preliminary checks After carefully cleaning all around the area where the burner will Checking the consignment be installed, and arranging the correct lighting of the environ- After removing all the packaging, check the integrity ment, proceed with the installation operations.

  • Page 15: Securing The Burner To The Boiler

    Installation Securing the burner to the boiler 4.5.1 Boring the boiler plate 4.5.3 Burner securing  Create a suitable hoisting system by hooking onto the rings Drill the combustion chamber locking plate as shown in (Fig. 9). 4), removing the fastening screws 1) securing the cover 2) first.

  • Page 16: Choice Of Nozzle

    Installation Choice of nozzle Electrode positioning Nozzles with no fuel shutoff needle must be fitted on the nozzle Place the electrode on the ignition pilot observing the holder. dimensions specified in Fig. 13. To set the delivery range within which the nozzle must work, WARNING nozzle return line fuel pressure must be adjusted according to the table (Tab.

  • Page 17: Combustion Head Setting

    Installation Combustion head setting In addition to varying air flow depending on the output request- If combustion requirements require you to move spacer 1) (Fig. ed, the air gate valve servomotor 4) (Fig. 5) by means of a lifting 15) onto the 1 or 2 hole of the gear and, at the same time, assembly - varies the setting of the combustion head.

  • Page 18: Fuel Supply

    Installation Fuel supply 4.9.1 Double-pipe circuit 4.9.2 The loop circuit The burner is equipped with a self-priming pump which is capa- A loop circuit consists of a loop of piping departing from and re- ble of feeding itself within the limits listed in the table at the side. turning to the tank with an auxiliary pump that circulates the fuel under pressure.

  • Page 19: Pressure Variator

    Installation 4.10 Pressure variator 1 Nozzle pressure gauge 2 Position indicator (0 ÷ 90) of pressure variator The pressure variator integrated into the valve unit of the oil cir- cuit makes it possible to vary the pressure on return of the noz- zle depending on the flow rate required.

  • Page 20: 4.12 Hydraulic Connections

    Installation 4.12 Hydraulic connections 4.14 Gas train The pumps are equipped with a by-pass that connects return 4.14.1 Gas train assembly line and suction line. The pumps are installed on the burner with the by-pass closed by screw 3), see diagram Fig. 19. The gas train is to be connected on the right of the burner, by It is therefore necessary to connect both hoses to the pump.

  • Page 21: 4.14.2 Gas Feeding Line

    Installation 4.14.2 Gas feeding line 4.14.3 Gas pressure It must be type-approved according to required standards and is Important supplied separately from the burner. The pressure at the head of the burner from table refers to zero in the combustion chamber; to obtain true pressure, measured by a U-type manometer, (Fig.

  • Page 22: Electrical Wiring

    Installation 4.15 Electrical wiring 4.15.1 Notes on safety for the electrical wiring  The electrical wiring must be carried out with the electrical supply disconnected.  Electrical wiring must be carried out by qualified personnel and in compliance with the regulations currently in force in the country of destination.

  • Page 23: Start-Up, Calibration And Operation Of The Burner

    Start-up, calibration and operation of the burner Start-up, calibration and operation of the burner  Adjust the air pressure switch (Fig. 25) to the start of the scale. Notes on safety for the first start-up The first start-up of the burner must be carried out by qualified personnel, as indicated in this manual and in compliance with the standards and regulations of the WARNING...

  • Page 24: Burner Start-Up

    Start-up, calibration and operation of the burner Burner start-up Combustion air adjustment Feed electricity to the burner via the disconnecting switch on the Fuel/combustion air must be synchronized with the relevant ser- boiler panel. vomotors (air and gas) by storing a setting curve by means of the electronic cam.

  • Page 25: Air/Fuel Control And Power Modulation System

    Start-up, calibration and operation of the burner Air/fuel control and power modulation system Final calibration of the pressure switches 5.7.1 Air pressure switch 5.6.1 General information Adjust the air pressure switch after having performed all other The air/fuel and power modulation system installed on RLS burner adjustments with the air pressure switch set to the start burner series provides, a set of integrated functions ensuring top of the scale (Fig.

  • Page 26: Minimum Gas Pressure Switch

    Start-up, calibration and operation of the burner 5.7.3 Minimum gas pressure switch Adjust the minimum gas pressure switch after having performed all the other burner adjustments with the pressure switch set at the start of the scale (Fig. 28). With the burner operating at MAX output, increase adjustment pressure by slowly turning the relative dial clockwise until the burn- er locks out.

  • Page 27: Maintenance

    Maintenance Maintenance Notes on safety for the maintenance Oil filter Clean the oil filter when it is dirty. The periodic maintenance is essential for the good operation, safety, yield and duration of the burner. Combustion It allows you to reduce consumption and polluting emissions and Adjust the burner if the combustion values found at the begin- to keep the product in a reliable state over time.

  • Page 28: Opening The Burner

    Maintenance Opening the burner Closing the burner  Close the burner at the hinge.  Apply screw 5). Disconnect the electrical supply from the burner  Connect the gas pressure switch test point 4).. DANGER  Connect the gas servomotor test point 3). ...

  • Page 29: Spare Parts

    Spare parts Spare parts Exploded spare parts list 20020804...

  • Page 30: Spare Parts List

    Spare parts Spare parts list CODE DESCRIPTION OIL/GAS HEAD 20011431 20013931 PRESSURE SWITCH CONNECTION SERVOMOTOR 3012944 AIR DIFFUSER 20011151 20011120 CONNECTOR VALVE NOT RETURN 3013461 JOINT 20020112 20020742 COVER SCREW 3013965 SCREW 3013964 20011084 SLEEVE END CONE 20011085 SHUTTER 20011089 3012287 AIR DAMPER 3013319...
  • Page 31 Spare parts CODE DESCRIPTION STRAINER 20016535 3013553 TUBE TUBE 3013554 TUBE 20016561 20017846 TUBE PRESSURE GAUGE 3006140 3006410 PUMP TA5 CHECK VALVE 20016554 TUBE 20017796 3007079 SEAL SECURITY RELIEF VALVE 2543377 PUMP MOTOR 20016392 3012384 OIL PRESSURE SWITCH CONNECTOR 2636882 3013473 8 POLE SOCKET STUD...

  • Page 32: Appendix - Electrical Panel Layout

    Appendix - Electrical panel layout Appendix - Electrical panel layout Index of layouts Indication of references Burner electrical wiring Burner electrical wiring Burner electrical wiring1 Indication of references /1.A1 Sheet no. Co-ordinates 20020804...
  • Page 33 Wiring must be performed by qualified personnel in accordance with the regulations in force in the DANGER country of destination. Riello S.p.A. declines all responsibility for changes or wiring performed in any way other than that illu- strated in these diagrams. 20020804...
  • Page 34 Appendix - Electrical panel layout 20020804...
  • Page 35 Appendix - Electrical panel layout 20020804...
  • Page 36 Appendix - Electrical panel layout 20020804...
  • Page 40 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.rielloburners.com Subject to modifications...

This manual is also suitable for:

Rls 800/e us1

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