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;...
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;...
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.
R. Bear in mind that inspection of the combustion head requires the burner to be opened by rotating the rear part on the hinge. 20092541 Fig. 2 inch RS 300/EV FGR ANSI 3” ANSI 4” 37” 16“ 2“ 16“...
Technical description of the burner Burner description 20114623 Fig. 3 Lifting eyebolts 20 Maximum gas pressure switch with pressure test point 21 QRI flame sensor Fan motor 22 Hinge for opening burner 23 Air pressure test point “+” Air gate valve servomotor Gas pressure test point 24 Air pressure test point “-”...
Technical description of the burner Electrical panel description 20114644 Fig. 4 Operator panel with LCD display Horn “K5” relay Terminal strip “XAUX” Flame control transformer “T1” Bracket for shielded cables Flame control for checking flame and air/fuel ratio Warning: used only to avoid a break in the cable’s shielding, Ignition transformer “TA1”...
Firing rates Maximum output must be selected in the hatched area of the dia- Model MBtu/hr gram (Fig. 5 and Fig. 6). RS 300/EV FGR 1893 Minimum output must not be lower than the minimum limit shown RS 500/EV FGR 3787 in the diagram.
Technical description of the burner 3.10 Minimum furnace dimensions The firing rates were set in relation to certified test boilers. Example for RS 500/EV FGR: Fig. 7 indicates the diameter and length of the test combustion Output 18500 MBtu/hr: diameter 39.4 inch - length 16.5 ft. chamber.
WARNING The LMV52... is a safety device! Do not open, in- terfere with or modify the unit. Riello S.p.A. will not assume responsibility for any damage resulting from unauthorized inter- ference! Risk of explosion! Incorrect configuration can lead to excessive...
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Technical description of the burner Electrical connection of ionization probe and flame detector • Observe the permissible cable lengths. • The ionization probe is not protected against electrical shock It is important to achieve practically disturbance- and loss-free hazard. The mainspowered ionization probe must be protected signal transmission: against accidental contact.
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Technical description of the burner Operation sequence of the burner TSA1 Timer 1 Timer 2 TSA1 Fuel 1 (oil) Fuel selection Fuel 2 (gas) Controller - ON (internal + external) Air pressure switch (LP) Fan conductor contact (GSK) (CPI function with LMV52...) Start release - oil Ignition (Z) (alternative start signal)
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Technical description of the burner Key to the sequence diagrams: Assignment of times: Depending on the parameter, valve proving takes place: Postpurge lockout position between phase 62 and phase 70 or/and Max. time safety phase between phase 30 and phase 32. Min.
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Technical description of the burner Key to the sequence diagrams: Parameter: With / without pressure switch Permissible positioning range Parameter: Short / long preignition time for oil only Short / long oil pump – ON – time In Standby: actuator can travel within the permissible po- Delayed shutdown within TSA1 + TSA2 sitioning range, but is always driven to the home position.
Technical description of the burner 3.12 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.
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.
Boiler plate Drill the combustion chamber mounting plate as shown in Fig. 13. The position of the threaded holes can be marked using the gasket supplied with the burner. inch RS 300/EV FGR coarse 32” 64” 4” RS 500/EV FGR coarse 32”...
Installation 4.6.2 Blast tube length The length of the blast tube must be selected according to the indi- This protective fettling must not compromise the extraction of the cations provided by the manufacturer of the boiler, and in any case blast tube.
Installation Electrode and ignition pilot adjustment Make sure that the electrode and the ignition pilot are positioned 2" as shown in Fig. 16. E LE CTR O DE PILO T 7/32" D9159 Fig. 16 4.10 Combustion head setting In addition to varying air flow depending on the output requested, the air gate valve servomotor 4)(Fig.
Installation 4.11 FGR duct system – Normally the duct would connect to the stack as shown in a condensate drip leg may be required on the bottom of the Fig. 21, with a 45° cut facing the flue gas flow and with the housing, to remove condensate.
Installation 4.11.1 Flue gas recirculation line sizing 4.11.2 Calculating the percentage of recirculated flue The Tab. M can be helpful to correctly size the FGR pipes taking flue gases from boiler stack base up to the burner intake port. As a general rule, recirculated flue gas quantity must be adjusted so as to recirculate the smallest quantity necessary to obtain the re- Maximum allowed pipe length (considering smooth steel pipes) is quired Nox rate.
Installation 4.12 Gas feeding Explosion danger due to fuel leaks in the presence The fuel supply line must be installed by qualified of a flammable source. personnel, in compliance with current standards Precautions: avoid knocking, attrition, sparks and and laws. WARNING heat.
Installation 4.12.2 Gas train 4.12.3 Gas pressure It must be type-approved according to UL Standards and is sup- The Tab. O shows minimum pressure losses along the gas supply plied separately from the burner. line depending on the maximum burner output operation. MBtu/hr (GCV) 1 p (“WC) 2 p (“WC)
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Installation Calculate the approximate maximum output of the burner as fol- lows: – subtract the combustion chamber pressure from the gas pres- sure measured at test point 1)(Fig. 24); – find, in the Tab. O relating to the burner concerned, the pres- sure value closest to the result of the subtraction;...
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.
Installation 4.13.2 Cable shielding 4.13.3 Other connection The connection from the Inverter to LMV52..must be done It is very important to shield the motor cable 1) as as shown in Fig. 27. shown in Fig. 26. The connection from the speed sensor to LMV52..must be done as shown in Fig.
Installation 4.13.4 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.
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.
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. Close the thermostats/pressure switches and turn the switch of Fig. 33 to position “LOCAL”. Make sure that the lamps or testers connected to the solenoids, or indicator lights on the solenoids themselves, show that no voltage is present.
Start-up, calibration and operation of the burner Combustion air adjustment Fuel/combustion air must be synchronized with the relevant servo- NOTE motors (air and gas) by storing a setting curve by means of the The first start-up and all further operations concerning internal set- electronic cam.
Start-up, calibration and operation of the burner Final calibration of the pressure switches 5.6.1 Air pressure switch Adjust the air pressure switch (Fig. 34) after having performed all other burner adjustments with the air pressure switch set to the start of the scale. With the burner operating at min.
Start-up, calibration and operation of the burner 5.6.3 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. 36) after having ad- justed the burner, the gas valves and the gas train stabiliser.
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.
Maintenance Burner Gas filter Clean the outside of the burner. Change the gas filter when it is dirty. Clean and grease the cam variable profile. Combustion Measurement of detector current In case the combustion values found at the beginning of the inter- vention do not respect the standards in force or, in any case, do not Measurement of the detector’s signal (Fig.
Maintenance Adjustment fan motor covering with external rpm To calibrate the rpm sensor 6)(Fig. 38), proceed as follows: remove the cover 1) unscrewing the screws 2); unscrew or screw the nuts 3) - 5) and the rpm detection disc 4) so that its distance from the rpm sensor 6) is about 2 mm.;...
Maintenance Opening the burner Remove the tie rod 1)(Fig. 39) of the head movement lever, loosening nut 2); Disconnect the electrical supply from the burner by disconnect the gas servomotor test point 3); means of the main system switch. ...
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Appendix - Spare parts CODE DESCRIPTION • 20159557 PILOT BURNER SUPORT • 20033305 AIR DIFFUSOR • 20117057 FLANGE A DVISED PARTS = Spare parts for minimum fittings = Spare parts for basic safety fittings A+B+C = Spare parts for extended safety fittings 20109903...
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 20109903...
Appendix - Burner start up report Appendix - Burner start up report Model number: Serial number: Project name: Start-up date: Installing contractor: Phone number: Model number: Serial number: Project name: Start-up date: Installing contractor: Phone number: GAS OPERATION : Low Fire Gas Supply Pressure: High Fire : Low Fire...
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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...
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