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Summary of Contents for Riello RS 250/EV
- Page 1 Installation, use and maintenance instructions Forced draught gas burner Progressive two stage or modulating operation Code Model 20044529 RS 250/EV 20044771 (2) - 07/2012...
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Page 3: Table Of Contents
Contents Information and general instructions ..............3 Information about the instruction manual . - Page 4 Contents Final calibration of the pressure switches ............31 5.5.1 Air pressure switch .
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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 manufacturer; current regulations and directives, applying the known technical the type and pressure of the fuel, the voltage and frequency of rules of safety and envisaging all the potential danger situations. the electrical power supply, the minimum and maximum deliv- eries for which the burner has been regulated, the pressurisa- It is necessary, however, to bear in mind that the imprudent and... -
Page 8: Technical Description Of The Burner
Technical description of the burner Technical description of the burner Technical data Model RS 250/EV MBtu/hr 4732 - 10034 (9122*) High 1387 - 2941 (2674*) Output MBtu/hr 1975 Fuel Natural gas - Max delivery SCFH 9808 - Pressure at maximum delivery natural gas “... -
Page 9: Burner Models Designation
Flame safeguard 208-220/3/60 20044529 460/3/60 Burner mounted RS 250/EV 575/3/60 Packaging - weight - Approximate measurements The packaging of the burner (Fig. 1) rests on a wooden plat- form that is particularly suitable for lift trucks. The overall dimensions of the packaging are shown in Tab. D. -
Page 10: Burner Description
Technical description of the burner Burner description Seen from A D12182 45 46 47 48 23 42 Fig. 3 Combustion head 30 Flame stability disc Burner pilot 31 Horn Screw for combustion head adjustment 32 “ALARM SILENCE” button Maximum gas pressure switch 33 “POWER ON”... -
Page 11: Firing Rate
Technical description of the burner Firing rate The maximum output is chosen within area A of the diagram The firing rate was obtained considering a room (Fig. 4). temperature of 68 °F and an atmospheric pressure The minimum output must not be lower than the minimum limit of of 394 “WC (approx. - Page 12 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 13: Minimum Furnace Dimensions
Technical description of the burner Minimum furnace dimensions The firing rates were obtained in special test boilers. Example Fig. 5 indicates the diameter and length of the test combustion Output 6400 Mbtu/hr - diameter 31.5 inch - length 10.4 ft. chamber. -
Page 14: Control Box For The Air/Fuel Ratio (Lmv52
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... - Page 15 Technical description of the burner • Observe the permissible cable lengths. Electrical connection of ionization probe and flame detector It is important to achieve practically disturbance- and loss-free • The ionization probe is not protected against electrical shock signal transmission: hazard.
- Page 16 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)
- Page 17 Technical description of the burner Key to the sequence diagrams: Depending on the parameter, valve proving takes place: Assignment of times: Postpurge lockout position between phase 62 and phase 70 or/and Max. time safety phase between phase 30 and phase 32. Min.
- Page 18 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.
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Page 19: 3.11 Actuators
Technical description of the burner 3.11 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. -
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: Boiler Plate
Fig. 10 boiler manufacturer. inch - 14 RS 250/EV Tab. G Securing the burner to the boiler Secure the burner to the boiler, fixing the flange 9)(Fig. 11) to The seal between burner and boiler must be airtight. -
Page 22: Electrode Positioning
Installation Electrode positioning To verify the correct position of the ignition electrode (Fig. 12), you need to separate the combustion head from the rest of the burner. Proceed as follows: loosen the 4 screws 3)(Fig. 11) and remove the cover 1); ... -
Page 23: Combustion Head Adjustment
Installation Combustion head adjustment At this point of the installation, the combustion head is fixed to the Two adjustments of the head are foreseen: boiler as shown in Fig. 13. – air adjustment – gas adjustment It is therefore especially easy to adjust, and this adjustment de- pends only on the maximum output of the burner. - Page 24 Installation Once the combustion head adjustment is completed: push the burner on the sliding bars 3) at approximately 4” from the pipe coupling 4) - burner in the position shown in Fig. 17; insert the electrode cable, then slide the burner as far as the pipe coupling - burner in the position shown in Fig.
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Page 25: Gas Supply
Installation Gas supply 4.9.1 Gas train The gas train is type-approved according to standard UL 795 and is supplied separately from the burner. The gas train can enter the burner from the right or left side, depending on which is the most convenient. ... -
Page 26: Gas Pressure
Installation 4.9.3 Gas pressure The diagram (Fig. 21) show minimum load losses at combustion head depending on the maximum burner output operation with nat- ural gas (G 20). D10473 Burner output operation Fig. 21 Gas pressure is measured at the test point 1)(Fig. 22), with: •... -
Page 27: 4.10 Electrical Wiring
Installation 4.10 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 28: 4.10.1 Speed Sensor Adjustment
Installation Key (Fig. 24) It is very importatnt to: Motor cable power supply (coming from Inverter) shield the motor cable 1) as shown in Fig. 24. Single phase supply cable fix the cable shielding as shown in Fig. 24. Connection cable between the Inverter and the electronic WARNING The connection from the Inverter to LMV52.. -
Page 29: 4.10.2 Inverter Connection
Installation 4.10.2 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 30: 4.11 Motor Connection At 208-230 Or 460V
Installation 4.11 Motor connection at 208-230 or 460V The motors, manufactured for 208-230/460 IE2/ Please, pay attention to the indications in case of Epact voltage, have a different connection than IE1 modification of voltage, maintenance, or substitu- motors, no more star/delta but star/double star. tion. -
Page 31: 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 32: Combustion Air Adjustment
Start-up, calibration and operation of the burner Combustion air adjustment Fuel/combustion air must be synchronized with the relevant servo- The system includes the following basic functions: motors (air and gas) by storing a setting curve by means of the air and fuels are supplied in correct quantities by positioning electronic cam. -
Page 33: 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. 36) and is activated by both the negative pressure of the air intake and the air pressure from the fan. -
Page 34: Final Checks (With The Burner Working)
Start-up, calibration and operation of the burner Final checks (with the burner working) Open the control limit operation The burner must stop Open the high limit operation Rotate the maximum gas pressure switch knob to the mini- mum end-of-scale position The burner must stop in lockout ... -
Page 35: 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 36: Maintenance Of Burner Electrical Components Under The Control Box
Maintenance The screws 3) move inside the slide until reaching the correct po- Gas filter Change the gas filter when it is dirty. sition indicated in “View A”. Combustion Fix the screw 3) backwards to the end in order to In case the combustion values found at the beginning of the inter- adjust and maintain in complete safety. -
Page 37: Opening The Burner
Maintenance Opening the burner remove the screws 3) and pull back the burner on the sliding bars 4) of about 4”; Disconnect the electrical supply from the bur- disconnect the electrode lead, then unthread the burner com- ner. pletely from the sliding bars;... -
Page 38: A Appendix - Spare Parts
Appendix - Spare parts Appendix - Spare parts 20044771... - Page 39 Appendix - Spare parts CODE DESCRIPTION 3014083 AIR DAMPER ASSEMBLY 3013683 GRID 3013682 SOUND DAMPING 3003763 INSPECTION WINDOW 3013686 BAR EXTENSIONNS 3012976 20027230 COVER 20026784 INSPECTION WINDOW 20014366 FUSE HOLDER 20011320 SUPPORT 20031413 HORN 20027018 RED SIGNAL LIGHT 20027020 YELLOW SIGNAL LIGHT 20027021 COMMUTATOR 3013095...
- Page 40 Appendix - Spare parts CODE DESCRIPTION 20011454 PLUG 20010962 BUTTON 3013694 DISC 3012049 SCREW 3012639 CONTROL DEVICE 3012560 SHUTTER 3013698 BRACKET 3013279 IR SENSOR 3013699 END CONE 3013937 3003322 CONNECTOR 20011351 MANIFOLD 3013938 DISC ADVISED PARTS = Spare parts for minimum fittings = Spare parts for basic safety fittings A+B+C = Spare parts for extended safety fittings 20044771...
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Page 41: 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 20044771... -
Page 42: 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: Model number: Serial number: Project name: Start-up date: Installing contractor: Phone number: GAS OPERATION : Low Fire Gas Supply Pressure: High Fire : Low Fire... - Page 44 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...
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