Related Manuals for Riello RLS 70/E
Summary of Contents for Riello RLS 70/E
- Page 1 Installation, use and maintenance instructions Dual fuel light oil/gas burner Progressive two stage or modulating operation CODE MODEL 20042895 RLS 70/E 20043127 (3) - 10/2012...
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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 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 70/E Output High MBtu/hr 1750 - 3094 513 - 907 Delivery 12.5 - 22.1 MBtu/hr Fuel #2 Fuel oil Natural gas Gas pressure at maximum delivery “... -
Page 9: Burner Models Designation
Technical description of the burner Fan motor and pump motor IE2/EPACT Model RLS 70/E Control circuit power supply V/Ph/Hz 120/1/60 120/1/60 120/1/60 Main power supply (+/-10%) V/Ph/Hz 208-220/3/60 460/3/60 575/3/60 Fan motor 3475 3475 3475 208-230 Pump motor 3520 3520... -
Page 10: 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 and thermal relay with reset button 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... -
Page 11: Packaging - Weight - Approximate Measurements
Packaging - weight - Approximate measurements The burners are skid mounted. Outer dimensions of packaging are indicated in (Tab. E). The weight of the burner complete with packaging is indicated in (Tab. E). inch RLS 70/E 64“ 32“ 8“ Tab. E Fig. 2 Burner dimensions The maximum dimensions of the burners are given in (Fig. -
Page 12: Firing Rate
394” WC and with the combustion head adjusted. WARNING Model MBtu/hr RLS 70/E NOTE: The firing rate area given in Fig. 4 have been reduced by 10% with respect to the maximum range that can be reached. D11954 Fig. - Page 13 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...
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Page 14: Minimum Furnace Dimensions
Technical description of the burner Minimum furnace dimensions The firing rate was set in relation to certified test boilers. Example Fig. 5 indicates the diameter and length of the test combustion Output 2576 MBtu/hr: diameter 24 inch - length 6.6 ft. chamber. -
Page 15: 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 16 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 17 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)
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Page 18: 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 19: Installation
Boiler plate Drill the combustion chamber mounting plate as shown in (Fig. 9). The position of the threaded holes can be marked using the gasket supplied with the burner. inch RLS 70/E “ “ - 14 “ D455 Fig. 9... -
Page 20: Burner Raising
This protective insulation must not compromise the extraction of the blast tube. For boilers having a water-cooled front, the insula- Model tion 11)-12) (Fig. 11) is not required unless it is required by the boil- RLS 70/E er manufacturer. 16” Securing the burner to the boiler Detach the combustion head from the burner, (Fig. -
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 nozzles every year during regular maintenance operations. -
Page 22: 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: The values indicated in the right side of the diagram (Fig. -
Page 23: 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. 17) until the notch shown in diagram (Fig. 18) is level with the front surface of flange 5)(Fig. 17). Example: maximum burner delivery = 17 GPH. -
Page 24: Burner Refitting
Installation 4.11 Burner refitting Refit the burner to the slide bars 3)(Fig. 20) at approximately secure the burner to the sleeve by tightening screws 1); 4” from the sleeve 4) - burner positioned as shown in (Fig. 11, ... -
Page 25: Hydraulic System
Installation 4.12 Hydraulic system 4.12.1 Double-pipe circuit 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 (Fig. 21) Distance "P"... -
Page 26: Hydraulic Connections
Installation Insert the hose connections with the supplied seals into the con- 4.12.3 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 Supply
Installation 4.13 Gas supply 4.13.1 Gas train It must be type-approved according to UL Standards and is sup- plied separately from the burner. See the accompanying instructions for the adjust- ment of the gas train. WARNING The main gas train must be connected to the gas attachment 1) (Fig. -
Page 28: Gas Pressure
Installation 4.13.3 Gas pressure 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 • burner operating at maximum output •... -
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 Please, pay attention to the indications in case of modification of the motors, manufactured for 208-230/460 IE2/ voltage, maintenance, or substitution. Epact voltage, have a different connection than IE1 motors, no more star/delta 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 Starting (Light Oil Adjustment)
Start-up, calibration and operation of the burner Burner starting (light oil adjustment) Operating control closes, the motor starts. The pump 3)(Fig. 38) 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 34: 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 35: Adjusting Gas/Air Delivery
Start-up, calibration and operation of the burner 5.5.1 Adjusting gas/air delivery 5.5.2 Adjusting oil/air delivery Move slowly towards the maximum output (butterfly gas valve Switch to the light oil operation. completely open); During the ignition, move slowly with an approximate adjust- ... -
Page 36: Maximum Gas Pressure Switch
Start-up, calibration and operation of the burner 5.6.2 Maximum gas pressure switch Adjust the maximum gas pressure switch (Fig. 43) after having per- formed all other burner adjustments with the maximum gas pres- sure switch set to the end of the scale. With the burner operating at MAX output, reduce the adjustment pressure by slowly turning the adjustment dial anticlockwise until the burner locks out. -
Page 37: 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. 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 Maintenance LIGHT OIL OPERATION Pump Delivery pressure must correspond with the Fig. 16, page 20. The depression must be less than 0.45 bar Unusual noise must not be evident during pump operation If the pressure is found to be unstable or if the pump runs noisily, the flexible hose must be detached from the line filter and the fuel must be sucked from a tank located near the burner.
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Page 40: Opening The Burner
Maintenance Opening the burner disconnect the light-oil pipes 8); remove screws 3) and pull the burner back by about 4” on the Disconnect the electrical supply from the burner. slide bars. disconnect the electrode leads. Install the extension bars 31)(Fig. 1, page 8) and re-screw the DANGER 2 screws and the safety plate Fig. -
Page 41: A Appendix - Spare Parts
Appendix - Spare parts Appendix - Spare parts 20043127... - Page 42 Appendix - Spare parts CODE DESCRIPTION 3013929 AIR DAMPER ASSEMBLY 3003949 GRID 3003952 SOUND DAMPING 3003763 INSPECTION WINDOW 3013686 BAR EXTENSION 3012939 20027230 COVER 20026784 VIEWING PORT 20014366 FUSE HOLDER 3005482 SEAL 20027432 STARTER 20027018 RED SIGNAL LIGHT 20027020 YELLOW SIGNAL LIGHT 20027021 COMMUTATOR 3013095...
- Page 43 Appendix - Spare parts CODE DESCRIPTION 3020068 RELAY 3012948 AIR PRESSURE SWITCH 20010962 BUTTON 20028411 COMMUTATOR 3012049 SCREW 3012639 CONTROL DEVICE 20010969 RELAY 20032471 SQUARE 3014079 SPACER 20032473 END CONE 3006787 FILTER 3003322 CONNECTOR 20035926 MANIFOLD 3006292 SEAL 3013938 DISC 3013937 20035928 GRADUATE SECTOR...
- Page 44 Appendix - Spare parts CODE DESCRIPTION 20028394 DRIVING COUPLING 20031015 MOTOR 3012971 ELBOW 20031413 HORN 3000805 SEAL 3006098 PIN JOINT 3013897 TIE ROD 20032430 SHAFT 20032504 SUPPORT 20032505 SUPPORT A DVISED PARTS = Spare parts for minimum fittings = Spare parts for basic safety fittings A+B+C = Spare parts for extended safety fittings 20043127...
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Page 45: 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 20043127... -
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...