Riello RLS 120/E 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
C9352400
C9352410
C9352401
C9353400
C9353410
C9353401
CODE
MODEL
RLS 68/E
RLS 68/E
RLS 68/E
RLS 120/E
RLS 120/E
RLS 120/E
20036952 (4) - 10/2012

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Summary of Contents for Riello RLS 120/E

  • Page 1 Installation, use and maintenance instructions Dual fuel light oil/gas burners Progressive two-stage or modulating operation CODE MODEL C9352400 RLS 68/E C9352410 RLS 68/E C9352401 RLS 68/E C9353400 RLS 120/E C9353410 RLS 120/E C9353401 RLS 120/E 20036952 (4) - 10/2012...
  • Page 3: Table Of Contents

    Contents Information and general instructions ..............3 Information about the instruction manual .
  • Page 4 Contents 4.15.2 Electronic thermal relay ............... . 28 4.16 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 1.1.4 Danger: live components The instruction manual supplied with the burner: This symbol indicates operations which, if not car-  is an integral and essential part of the product and must not be ried out correctly, lead to electric shocks with lethal separated from it;...
  • Page 6: Guarantee And Responsibility

    Information and general instructions Guarantee and responsibility The manufacturer guarantees its new products from the installa- 1.2.1 Owner’s responsibility tion date, in accordance with the regulations in force and/or the Please pay attention to the Safety Warnings contained within sales contract. At the moment of the first start-up, check that the this instruction manual.
  • Page 7: 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 current regulations and directives, applying the known technical the electrical power supply, the minimum and maximum deliv- rules 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 68/E RLS 120/E Output High MBtu/hr 1194 - 2934 2047 - 4094 350 - 860 600 - 1200 Delivery 8.5 - 21 14.5 - 29 MBtu/hr...
  • Page 9: Electrical Data

    Electrical control circuit consumption Total electrical consumption 4150 4550 4100 Electrical protection NEMA 1 Tab. C Fan motor and pump motor IE1 Model RLS 120/E RBNA Code C9353400 C9353410 C9353401 Control circuit power supply V/Ph/Hz 120/1/60 Main electrical supply (+/- 10%) V/Ph/Hz...
  • Page 10: Three Phase Burner

    3550 Electrical control circuit consumption Total electrical consumption 4300 Electrical protection NEMA 1 Tab. E Fan motor and pump motor IE2/EPACT Model RLS 120/E RBNA Code C9353400 C9353410 C9353401 Control circuit power supply V/Ph/Hz 120/1/60 Main electrical supply (+/- 10%)
  • Page 11: 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) Fan motor contactor with auxiliary contact and thermal relay with reset button UV scanner Burner terminal board for electrical wiring “X1”...
  • Page 12: Packaging - Weight - Approximate Measurements

    The weight of the burner complete with packaging is indicated in (Tab. G). inch RLS 68/E 64“ 32“ 8“ RLS 120/E 64“ 32“ 8“ Fig. 2 Tab. G Burner dimensions The maximum dimensions of the burners are given in (Fig. 3).
  • Page 13: Firing Rate

    RLS 68/E shown in the diagram: Model MBtu/hr RLS 68/E RLS 120/E 1023 NOTE: The firing rate area given in Fig. 4 have been reduced by 10% with respect to the maximum range that can be reached. The firing rate area values have been obtained con- sidering an ambient temperature of 68 °F, and an...
  • 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 The installation of the burner must be carried out by be installed, and arranging the correct lighting of the environ- qualified personnel, as indicated in this manual and ment, proceed with the installation operations.
  • Page 21: Burner Raising

    Installation Burner raising In order to lift the burner, proceed as follows: The manufacturer declines any and every respon-  screw the two extension bars 1) on the pins 2) (Fig. 10); sibility for any possible lifting movements, different  place the two plates 3) fix them on the relevant ring nuts 4); from those indicated in this manual.
  • Page 22: Nozzle

    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 nozzles every year dur- ing regular maintenance operations.
  • Page 23: Adjusting The Nozzle Flow Rate

    Installation 4.8.3 Adjusting the nozzle flow rate The nozzle flow rate varies according to the fuel pressure on the nozzle return. Diagram (Fig. 16) indicates this relationship for type A4 return flow nozzles with pump delivery pressure of 290 PSI. See Fig. 16: Horizontal axis: PSI, nozzle return pressure Vertical axis:...
  • Page 24: Electrode Position

    Installation Electrode position Make sure that the electrodes are positioned as shown in Fig. 17. WARNING D10108 3/ 32" Fig. 17 4.10 Burner refitting  Refit the burner to the slide bars 3)(Fig. 18) at approximately  secure the burner to the sleeve by tightening screws 1); 4”...
  • Page 25: Hydraulic System

    Installation 4.11 Hydraulic system 4.11.1 Fuel supply Double-pipe circuit (Fig. 19) The burner is equipped with a self-priming pump which is capable of feeding itself within the limits listed in the table at the side. The tank higher than the burner A Distance "P"...
  • Page 26: Hydraulic Connections

    Installation Insert the hose connections with the supplied seals into the con- 4.11.2 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 27: Gas Line

    Installation 4.12 Gas line The main gas train must be connected to the gas attachment 1) (Fig. 22), using flange 2), gasket 3) and screws 4) supplied with the burner. The main gas train can enter the burner from the right or left side, see (Fig.
  • Page 28: Gas Pressure

    – Find the nearest pressure value to your result in Fig. 24. – Read off the corresponding output on the left. Burner output Example RLS 120/E • Maximum output operation • Natural gas • Gas pressure at test point 1)(Fig. 25) = 4.41”...
  • Page 29: Electrical Wiring

    Installation 4.14 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 carried out by qualified personnel and in compliance with the regulations currently in force in the country of destination.
  • Page 30: Thermal Relay Calibration

    Installation 4.15 Thermal relay calibration Depending on the burner type, there are two different thermal re- 4.15.2 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 31: Motor Connection At 208-230 Or 460V

    Installation 4.16 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 32: Start-Up, Calibration And Operation Of The Burner

    Place the pilot and electrode as shown in Fig. 37. The pilot works correctly at pressures ranging from 3-4” WC. Model 21 / 64” RLS 68/E 21 / 64” RLS 120/E D10109 D11363 Fig. 37 Fig. 35 D11364 Burner max. output Fig.
  • Page 33: Adjustments Before First Firing (Gas Operation)

    Start-up, calibration and operation of the burner Adjustments before first firing (gas operation)  Ensure that the gas supply company has carried out the sup- ply line vent operations, eliminating air or inert gases from the piping.  Slowly open the manual valves situated upstream of the gas train.
  • Page 34: 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 35: Final Calibration Of The Pressure Switches

    Start-up, calibration and operation of the burner Final calibration of the pressure switches 5.5.1 Air pressure switch The air pressure switch is connected in differential (Fig. 44) and is activated by both the negative pressure of the air intake and the air pressure from the fan.
  • Page 36: Minimum Gas Pressure Switch

    Start-up, calibration and operation of the burner 5.5.3 Minimum gas pressure switch Adjust the minimum gas pressure switch (Fig. 46) after having per- formed all the other burner adjustments with the pressure switch set at the start of the scale. With the burner operating at MAX output, increase adjustment pressure by slowly turning the relative dial clockwise until the burn- er locks out.
  • Page 37: Burner Starting

    Start-up, calibration and operation of the burner Burner starting (fuel oil adjustment  Operating control closes, the motor starts. The pump 3)(Fig. 48) draws the fuel from the tank through the piping 1) and pumps it under pressure for delivery. The piston 4) rises and the fuel returns to the tank through the piping 5) - 7).
  • Page 38: 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. 49. 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 39: Maintenance

    Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, Combustion head safety, yield and duration of the burner. Open the burner and make sure that all components of the com- It allows you to reduce consumption and polluting emissions and bustion head are in good condition, not deformed by the high tem- to keep the product in a reliable state over time.
  • Page 40: Opening The Burner

    Maintenance Opening the burner 6.2.1 To open the burner 6.2.2 To close the burner To open the burner proceed sa follows: To close the burner proceed sa follows:  switch off the electrical power;  push the burner until it is about 4” from the sleeve; ...
  • Page 41: A Appendix - Spare Parts

    Appendix - Spare parts Appendix - Spare parts 20036952...
  • Page 42 Appendix - Spare parts CODE DESCRIPTION • • 3013929 AIR DAMPER ASSEMBLY • • 3003949 GRID • • 3003952 SOUND DAMPING • • 3003763 INSPECTION WINDOW • • 3013686 BAR EXTENSION • 3012403 • 3012940 • • 20027259 COVER • • 20026784 VIEWING PORT •...
  • Page 43 Appendix - Spare parts CODE DESCRIPTION • • 3012956 TRANSFORMER • • 3012841 BASE • • 3012938 TRANSFORMER • • 3020071 BASE • • 3020068 RELAY • • 3012948 AIR PRESSURE SWITCH • • 20010962 BUTTON • • 20028411 COMMUTATOR •...
  • Page 44 Appendix - Spare parts CODE DESCRIPTION • • 3013531 VALVE • • 20032500 TUBE • • 20032501 TUBE • • 3006369 PUMP • • 3012949 CONNECTOR • • 3007164 SEAL • • 3006184 • • 3013050 JOINT • • 20028394 DRIVING COUPLING •...
  • Page 45: B Appendix - Accessories

    Appendix - Accessories Appendix - Accessories • Gas train according to UL Standards The installer is responsible for the supply and installation of any required safety device(s) not indicated in this manual. WARNING 20036952...
  • Page 46: 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 48 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 68/e

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