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Related Manuals for Riello RLS 68/E
Summary of Contents for Riello RLS 68/E
- Page 1 Installation, use and maintenance instructions Dual fuel light oil/gas burners Progressive two-stage or modulating operation CODE MODEL C9352400 - C9352410 - C9352401 - 20195046 RLS 68/E C9353400 - C9353410 - C9353401 RLS 120/E 20095066 (4) - 02/2022...
- Page 2 Original instructions...
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Page 3: Table Of Contents
Contents Information and general instructions ..............3 Information about the instruction manual . - Page 4 Contents 4.15.1 Electro-mechanical thermal relay ..............28 4.15.2 Electronic thermal relay .
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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 1.1.4 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 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 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: Burner Models Designation
Electrical protection NEMA 1 Tab. C Burner models designation Model Code Code RBNA Voltage Flame safeguard C9352400 208-220/3/60 20036711 C9352410 460/3/60 RLS 68/E Burner mounted C9352401 575/3/60 20195046 230/1/60 C9353400 208-220/3/60 RLS 120/E 20036193 Burner mounted C9353410 460/3/60 Tab. D Packaging - weight - Approximate measurements The burners are skid mounted. -
Page 10: 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 RLS 68/E 2” 64" 64" 32" 32" 64"... -
Page 11: Procedure To Refer Burner Operating Condition At An Altitude And/Or At A Combustion Supporter Air Temperature Different To The Standard Values (328 Ft Above Sea Level, 68 °F)
Technical description of the burner 3.6.1 Procedure to refer burner operating condition at an altitude and/or at a combustion supporter air temperature different to the standard values (328 ft above sea level, 68 °F). AIR TEMPERATURE Altitude Altitude bar. press. bar. -
Page 12: Minimum Furnace Dimensions
Technical description of the burner Minimum furnace dimensions The firing rate was set in relation to certified test boilers. Example: Fig. 4 indicates the diameter and length of the test combustion Output 4000 MBtu/hr: diameter 24 inch - length 8.2 ft. chamber. -
Page 13: Burner Description
Technical description of the burner Burner description Combustion head Ignition electrodes Screw for combustion head adjustment Sleeve Fan motor RWF55 modulator (with analog output 4-20 mA) Fan motor contactor and thermal relay with reset button UV flame sensor 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... -
Page 14: 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 15 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 16 Technical description of the burner Operation sequence of the burner Operation Startup Shutdown 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)
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Page 17: 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 18: 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 19: 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. 9); 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 20: Securing The Burner To The Boiler
Fig. 12 Ignition pilot adjustment Place the pilot and electrode as shown in Fig. 13. The pilot works correctly at pressures ranging from 3-4” WC. Model 21 / 64” RLS 68/E 21 / 64” RLS 120/E Tab. M D11363 Fig. 13... -
Page 21: 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 the nozzle once a year dur- ing periodical maintenance. -
Page 22: Adjusting The Nozzle Flow Rate
Installation 4.9.3 Adjusting the nozzle flow rate The nozzle flow rate varies according to the fuel pressure on the The values indicated in the right side of the diagram (Fig. 17), refer nozzle return. to the data printed on the nozzle. Diagram (Fig. -
Page 23: Combustion Head Setting
Installation 4.10 Combustion head setting The setting of the combustion head depends exclusively on the maximum delivery of the burner. Turn screw 6)(Fig. 20) until the notch shown in diagram (Fig. 19) is level with the front surface of flange 5)(Fig. 20). Example: maximum burner delivery = 23.1 GPH If diagram (Fig. -
Page 24: Light Oil Supply
Installation 4.12 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 25: Hydraulic Connections
Installation 4.12.1 Hydraulic connections The pumps are equipped with a by-pass that separates return line Insert the hose connections with the supplied seals into the con- and suction line. nections and screw them down. The pumps are installed on the burner with the by-pass closed by Take care that the hoses are not stretched or twisted during instal- screw 6)(Fig. -
Page 26: Gas Feeding
Installation 4.13 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 27: Gas Pressure
Installation 4.13.2 Gas pressure RLS 68/E D11362 The adjacent diagram is used to calculate manifold pressure taking into account combustion chamber pressure. Gas manifold pressure measured at test point 1)(Fig. 28), with: • combustion chamber at 0” WC • burner operating at maximum output •... -
Page 28: 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 29: Supply Cables And External Connections Passage
Installation 4.14.1 Supply cables and external connections passage All the cables to be connected to the burner are fed through the grommets. See Fig. 29. The use of the cable grommets can take various forms. By way of example we indicate the following mode (according to UL795): 1 Three phase power supply with 3/4 inch cable grommet 2 Available: single phase power supply and other devices with 1/2 inch cable grommet... -
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 thermal relay (used for single phase mo- press the button “RESET”... -
Page 31: Motor Connection At 208-230 Or 460V
Installation 4.16 Motor connection at 208-230 or 460V Please, pay attention to the indications in case of modification of the motors, manufactured for 208-230/460 IE3 voltage, maintenance, or substitution. NEMA Premium Efficiency voltage, have the same connection than IE2/Epact motors, but differ- ent connection than IE1 motors no more star/delta WARNING but star/double star. -
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, com- by qualified personnel, as indicated in this manual mand and safety devices. -
Page 33: 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 RWF55 regulator. Please refer to the specific manual for this operation. Turn the switch to position “ON”... -
Page 34: Final Calibration Of The Pressure Switches
Start-up, calibration and operation of the burner Final calibration of the pressure switches 5.8.1 Air pressure switch The air pressure switch is connected in differential (Fig. 41) and is activated by both the negative pressure of the air intake and the air pressure from the fan. -
Page 35: Minimum Gas Pressure Switch
Start-up, calibration and operation of the burner 5.8.3 Minimum gas pressure switch The purpose of the minimum gas pressure switch is to prevent the burner from operating in an unsuitable way due to too low gas pres- sure. Adjust the minimum gas pressure switch (Fig. 43) after having ad- justed the burner, the gas valves and the gas train stabiliser. -
Page 36: Burner Starting (Fuel Oil Adjustment)
Start-up, calibration and operation of the burner Burner starting (fuel oil adjustment) Operating control closes, the motor starts. The pump 3)(Fig. 45) 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 37: Flame Signal Measurement
Start-up, calibration and operation of the burner 5.10 Flame signal measurement Check the flame signal through the parameter 954, as indicated in Fig. 46. 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 38: Maintenance
Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, safe- Before carrying out any maintenance, cleaning or checking opera- ty, yield and duration of the burner. tions: It allows you to reduce consumption and polluting emissions and to keep the product in a reliable state over time. -
Page 39: Safety Components
Maintenance 6.2.4 Safety components Flame inspection window The safety components must be replaced at the end of their life Clean the flame inspection window 1)(Fig. 47). cycle indicated in Tab. Q. The specified life cycles do not refer to the warranty terms indicated in the delivery or payment conditions. Safety component Life cycle 10 years or 250,000... - Page 40 Maintenance LIGHT OIL OPERATION GAS OPERATION Pump Gas leaks Delivery pressure must correspond with the Fig. 17. Make sure that there are no gas leaks on the pipework between the The depression must be less than 0.45 bar gas meter and the burner. Unusual noise must not be evident during pump operation Gas filter If the pressure is found to be unstable or if the pump runs noisily,...
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Page 41: Opening The Burner
Maintenance Opening the burner To open the burner proceed as follows: loosen screws 1)(Fig. 49) 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 42: 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 43: A Appendix - Spare Parts
Appendix - Spare parts Appendix - Spare parts 20095066... - Page 44 Appendix - Spare parts CODE DESCRIPTION 3013929 • • • AIR DAMPER ASSEMBLY 3003949 • • • PROTECTION GRATE 3003952 • • • SOUND DAMPING 3003763 • • • INSPECTION WINDOW 3013686 • • • BAR EXTENSION 3012403 • • 3012940 •...
- Page 45 Appendix - Spare parts CODE DESCRIPTION 58 20030206 • • • END CONE 3006787 • • • FILTER 3003322 • • • CONNECTOR 61 20035926 • • • MANIFOLD 3006292 • • • SEAL 3013938 • • • DISC 3013937 •...
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Page 46: 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 20095066... -
Page 47: 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.riello.com RIELLO BURNERS NORTH AMERICA http://www.riello.ca 35 Pond Park Road 2165 Meadowpine Blvd Hingham, Massachusetts, Mississauga, Ontario U.S.A. 02043 1-800-4-RIELLO Canada L5N 6H6 Subject to modifications...