Riello RLS 70/EV Installation, Use And Maintenance Instructions
Riello RLS 70/EV Installation, Use And Maintenance Instructions

Riello RLS 70/EV Installation, Use And Maintenance Instructions

Dual fuel light oil/gas burners
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Installation, use and maintenance instructions
Dual fuel light oil/gas burners
GB
Progressive two stage or modulating operation
CODE
MODEL
20065636
RLS 70/EV
C9335700 - C9335710
RLS 100/EV
C9335701
20036932 (5) - 02/2013

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Summary of Contents for Riello RLS 70/EV

  • Page 1 Installation, use and maintenance instructions Dual fuel light oil/gas burners Progressive two stage or modulating operation CODE MODEL 20065636 RLS 70/EV C9335700 - C9335710 RLS 100/EV C9335701 20036932 (5) - 02/2013...
  • Page 3: Table Of Contents

    Contents Information and general instructions ..............3 Information about the instruction manual .
  • Page 4 Contents 4.14.2 Electronic thermal relay ............... . 31 4.15 Motor connection at 208-230 or 460V .
  • Page 5: Information And General Instructions

    Information and general instructions Information and general instructions Information about the instruction manual 1.1.1 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 be away from moving mechanical parts;...
  • Page 6: Delivery Of The System And The Instruction Manual

    Information and general instructions  The system supplier must carefully inform the user about: 1.1.4 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 7: Safety And Prevention

    Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with cur- the type and pressure of the fuel, the voltage and frequency of the rent regulations and directives, applying the known technical rules electrical power supply, the minimum and maximum deliveries for of safety and envisaging all the potential danger situations.
  • Page 8: Technical Description Of The Burner

    Technical description of the burner Technical description of the burner Technical data Model RLS 70/EV RLS 100/EV Output High MBtu/hr 1750 - 3094 2646 - 4396 513 - 907 775 - 1288 Delivery 12.5 - 22.1 18.9 - 31.4 MBtu/hr...
  • Page 9 Electrical control circuit coms. Total electrical consumption 4150 4550 4100 Electrical protection NEMA 1 Tab. C Fan motor and pump motor IE2/EPACT Model RLS 70/EV C9334700 RBNA Code Control circuit power supply V/Ph/Hz 120/1/60 Main electrical supply (+/- 10%) V/Ph/Hz 208-220/3/60 460/3/60...
  • Page 10: Burner Models Designation

    Total electrical consumption 4300 Electrical protection NEMA 1 Tab. E Burner models designation Model Code RBNA code Voltage Flame safeguard C9334700 208-220/3/60 20065636 RLS 70/EV 460/3/60 Burner mounted 575/3/60 C9335700 208-220/3/60 20036705 RLS 100/EV C9335710 460/3/60 Burner mounted C9335701 575/3/60 Tab. F Packaging - weight - Approximate measurements The burners are skid mounted.
  • Page 11: Burner Dimensions

    The maximum dimension of the burner when open, without casing, is give in measurement I. Inspection of the combustion head requires the burner to be opened and the rear part withdrawn on the slide bars. D2300 Fig. 2 Model 17” RLS 70/EV 2” 32" 32" 64" 64" 64" 32"...
  • Page 12: Burner Description

    Technical description of the burner Burner description Combustion head Ignition electrodes Screw for combustion head adjustment Sleeve Fan motor RWF 40 modulator (with analog output 4-20 mA) Speed sensor UV scanner Burner terminal strip “X1” Holes for cables grommets for electrical wirings, accessories and power supply (to be carried out by the installer) 11 Control box for checking flame and air/fuel ratio 12 Operator panel with LCD display...
  • Page 13: Firing Rates

    The firing rate area values have been obtained con- Model MBtu/hr sidering an ambient temperature of 68 °F, and an RLS 70/EV atmospheric pressure of 394” WC and with the RLS 100/EV 1330 combustion head adjusted.
  • Page 14 Technical description of the burner CORRECTED BURNER CAPACITY ACCORDING TO ALTITUDE Altitude m a.s.l. 1220 1525 1830 2135 2440 Rated Capacity ft a.s.l 1000 2000 3000 4000 5000 6000 7000 8000 1000 1000 1023 1061 1101 1142 1186 1232 1282 1337 1500 1481...
  • Page 15: Minimum Furnace Dimensions

    Technical description of the burner Minimum furnace dimensions The firing rate was set in relation to certified test boilers. Diameter (inches) Fig. 5 indicates the diameter and length of the test combustion chamber. Example: Output 4000 MBtu/hr: diameter 24 inch - length 8.2 ft. D10921 Fig.
  • Page 16: Control Box For The Air/Fuel Ratio (Lmv36

    Technical description of the burner 3.10 Control box for the air/fuel ratio (LMV36...) Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes must be observed! WARNING The LMV36... is a safety device! Do not open, interfere with or modify the unit.
  • Page 17 Technical description of the burner Technical data LMV36... basic unit Mains voltage AC 120 V -15 % / +10 % Mains frequency 50 / 60 Hz ±6 % Power consumption < 30 W (typically) Safety class I, with parts according to II and III to DIN EN 60730-1 Terminal loading Unit fuse F1 (internally) 6.3 AT...
  • Page 18 Technical description of the burner Operation sequence of the burner Operation Shutdown Startup Valve proving TSA2 TSA1 Phase number Safety limit thermostat (STB) Control thermostat or pressurestat (R) Flame signal (FS) Air pressure switch (LP) Pressure switch-min (Pmin) Pressure switch-max (Pmax) Valve proving / leakage test (P LT) POC (alternative to Pmax) Motor (M)
  • Page 19: Actuators (Sqm33.5

    Technical description of the burner 3.11 Actuators (SQM33.5...) 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 20: Installation

    Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner will be The installation of the burner must be carried out by installed, and arranging the correct lighting of the environment, pro- qualified personnel, as indicated in this manual and ceed with the installation operations.
  • Page 21: Preparing The Boiler

    D455 The range of lengths available, L (inch), is as follows: Fig. 9 Model inch RLS 70/EV RLS 70/EV 32” “ “ - 14 “ RLS 100/EV RLS 100/EV 32”...
  • Page 22: Securing The Burner To The Boiler

    Installation Securing the burner to the boiler Detach the combustion head from the burner, (Fig. 11):  install the extension bars 31)(Fig. 3, page 10) and re-screw  disconnect the oil pipes by unscrewing the two connectors 6); the screws 2) including the safety plate 15); ...
  • Page 23: Nozzle Installation

    The burner complies with the emission requirements of the UL 296 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 dur- ing periodical maintenance.
  • Page 24: Adjusting The Nozzle Flow Rate

    Installation 4.8.2 Adjusting the nozzle flow rate The nozzle flow rate varies according to the fuel pressure on the nozzle return. Diagram (Fig. 17) indicates this relationship for type A4 return flow nozzles with pump delivery pressure of 290 PSI. See Fig. 17: Horizontal axis: PSI, nozzle return pressure Vertical axis:...
  • Page 25: Combustion Head Setting

    Installation Combustion head setting The setting of the combustion head depends exclusively on the maximum delivery of the burner. Turn screw 6)(Fig. 18) until the notch shown in diagram (Fig. 19) is level with the front surface of flange 5)(Fig. 18). Example RLS 100/EV: maximum burner delivery = 23.1 GPH.
  • Page 26: Light Oil Supply

    Installation 4.11 Light oil supply Explosion danger due to fuel leaks in the presence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure 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.
  • Page 27: Hydraulic Connections

    Installation Insert the hose connections with the supplied seals into the con- 4.11.1 Hydraulic connections nections and screw them down. The pumps are equipped with a by-pass that separates return line Take care that the hoses are not stretched or twisted during instal- and suction line.
  • Page 28: Gas Feeding

    Installation 4.12 Gas feeding Explosion danger due to fuel leaks in the presence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure 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.
  • Page 29: Gas Pressure

    Installation 4.12.2 Gas pressure RLS 70/EV D11955 The adjacent diagram is used to calculate manifold pressure taking into account combustion chamber pressure. Gas manifold pressure measured at test point 1)(Fig. 27), with: • combustion chamber at 0 ” WC •...
  • Page 30: Electrical Wiring

    Installation 4.13 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 carried out by qualified personnel and in compliance with the regulations currently in force in the country of destination.
  • Page 31: Speed Sensor Adjustment

    Installation The connection from the Inverter to LMV36..must be done as It is very importatnt to shield the motor cable 1) as shown in Fig. 29. shown in Fig. 29. Key (Fig. 29) It is very importatnt to fix the cable shielding as Motor supply cable WARNING shown in Fig.
  • Page 32: Inverter Connection

    Installation 4.13.3 Inverter connection Treatment of cables Countermeasures against cable noise Following, it is reported an example how to con- nect the Inverter. The treatment of cables is the most important countermeasure. For further information, please refer to the relevant The machinery manufacturers are requested Inverter instruction manual.
  • Page 33: Thermal Relay Calibration

    Installation 4.14 Thermal relay calibration Depending on the burner type, there are two different thermal re- 4.14.2 Electronic thermal relay lays:  To reset, in the case of an intervention of the thermal relay, – Electro-mechanical termal relay (used for single phase motors) press the button “RESET”...
  • Page 34: Motor Connection At 208-230 Or 460V

    Installation 4.15 Motor connection at 208-230 or 460V WARNING: the motors, manufactured for 208-230/460 IE2/Epact voltage, have a different connection than IE1 motors, no more star/delta but star/double star. Please, pay attention to the indications in case of modification of voltage, maintenance, or substitution. IE2/Epact S8380 S8379...
  • Page 35: Start-Up, Calibration And Operation Of The Burner

    Fig. 43 The first time the burner is fired leave the factory setting unchanged Model for both low and high fire operation. 15/ 64” RLS 70/EV 5.2.4 Ignition pilot adjustment 15/ 64” RLS 100/EV Place the pilot and electrode as shown in Fig. 43.
  • Page 36: Burner Start-Up

    Start-up, calibration and operation of the burner Burner start-up Feed electricity to the burner via the disconnecting switch on the boiler panel. Close the thermostats/pressure switches, set the parameters on the RWF 40 regulator. Please refer to the specific manual for this operation. Turn the switch to position “ON”...
  • Page 37: Final Calibration Of The Pressure Switches

    Start-up, calibration and operation of the burner Final calibration of the pressure switches 5.7.1 Air pressure switch The air pressure switch (Fig. 47) is connected in differential and is activated by both the negative pressure of the air intake and the air pressure from the fan.
  • Page 38: Low Oil Pressure Switch

    Start-up, calibration and operation of the burner 5.7.4 Low oil pressure switch The low oil pressure switch is factory set to 261 PSI (18 bar). If the oil pressure goes down this value in the delivery piping, the pres- sure switch stops the burner. Burner starts again automatically if the pressure goes above 261 PSI (18 bar) after burner start up.
  • Page 39: Flame Signal Measurement

    Start-up, calibration and operation of the burner Flame signal measurement Check the flame signal through the parameter 954, as indicated in Fig. 52. The displayed value is expressed in percentage. The value during the operation must be higher than 24%. If at the burner start-up the value is higher or equal of 18%, the burner locks out due to the extraneous light.
  • Page 40: Maintenance

    Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, safe- ty, yield and duration of the burner. Disconnect the electrical supply from the burner by It allows you to reduce consumption and polluting emissions and to means of the main system switch.
  • Page 41 Maintenance GAS OPERATION Check to make sure that no dust has accumulated inside the fan or on its blades, as this condition will cause a reduction in the air flow Gas leaks rate and provoke polluting combustion. Make sure that there are no gas leaks on the pipework between the gas meter and the burner.
  • Page 42: Opening The Burner

    Maintenance Opening the burner To open the burner proceed sa follows:  loosen screws 1) and withdraw the cover 2); Disconnect the electrical supply from the burner by  disengage the swivel coupling 7) from the graduated sector; means of the main system switch. ...
  • Page 43: 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 visualises alternately the lockout code and the relative diagnostic.
  • Page 44: A Appendix - Spare Parts

    Appendix - Spare parts Appendix - Spare parts 20036932...
  • Page 45 Appendix - Spare parts CODE DESCRIPTION • • AIR DAMPER ASSEMBLY 3013929 • • GRID 3003949 • • SOUND DAMPING 3003952 • • INSPECTION WINDOW 3003763 • • BAR EXTENSION 3013686 • 3012939 • 3012403 • • COVER 20037259 • • VIEWING PORT 20026784 •...
  • Page 46 Appendix - Spare parts CODE DESCRIPTION • • TRANSFORMER 3012956 • • BASE 3012841 • • TRANSFORMER 3012938 • • BASE 3020071 • • RELAY 3020068 • • AIR PRESSURE SWITCH 3012948 • • BUTTON 20010962 • • COMMUTATOR 20028411 •...
  • Page 47 Appendix - Spare parts CODE DESCRIPTION • • CONNECTOR 3013462 • • CONNECTOR 3006722 • • PRESSURE SWITCH 3012384 • • PRESSURE GAUGE 3006140 • • VALVE 3013531 • • TUBE 20032500 • • TUBE 20032501 • • PUMP 3006369 •...
  • Page 48: B Appendix - Accessories

    Appendix - Accessories Appendix - Accessories • Gas train according to UL Standards The installer is responsible for the supply and instal- lation of any required safety device(s) not indicated in this manual. WARNING 20036932...
  • Page 49: Appendix - Burner Start Up Report

    Appendix - Burner start up report Appendix - Burner start up report Model number: Serial number: Project name: Start-up date: Installing contractor: Phone number: GAS OPERATION : Low Fire Gas Supply Pressure: High Fire : Low Fire Main Power Supply: High Fire Control Power Supply: CO: Low Fire...
  • Page 52 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.rielloburners.com RIELLO BURNERS NORTH AMERICA 35 Pond Park Road 1-800-4-RIELLO 2165 Meadowpine Blvd Hingham, Massachusetts, 1-800-474-3556 Mississauga, Ontario U.S.A. 02043 Canada L5N 6H6 http://www.riello-burners.com Subject to modifications...

This manual is also suitable for:

Rls 100/evC9335700C9335710C933570120065636

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