Riello RS 70/E MZ Installation, Use And Maintenance Instructions
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Riello RS 70/E MZ Installation, Use And Maintenance Instructions

Blown type gas burners
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Installation, use and maintenance instructions
Blown type gas burners
GB
Progressive two-stage or modulating operation
Code
3787630 - 3787632
3789200 - 3789210
3789201 - 3789211
3789230 - 3789240
3789231 - 3789241
Model
RS 70/E MZ
RS 70/E MZ
RS 100/E MZ
RS 100/E MZ
RS 130/E MZ
RS 130/E MZ
RS 190/E
RS 250/E MZ
RS 250/E MZ
RS 250/E MZ
RS 250/E MZ
Type
828 T2
828 T2
829 T2
829 T2
830 T2
830 T2
836 T2
866 T1
866 T1
866 T1
866 T1
2916367 (0) - 11/2007

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Summary of Contents for Riello RS 70/E MZ

  • Page 1 Installation, use and maintenance instructions Blown type gas burners Progressive two-stage or modulating operation Code Model Type RS 70/E MZ 828 T2 RS 70/E MZ 828 T2 RS 100/E MZ 829 T2 RS 100/E MZ 829 T2 RS 130/E MZ...
  • Page 2 Machine Directive 73/23/EEC - 2006/95/EEC Low Voltage Directive EMC 89/336/EEC - 2004/108/EEC Electromagnetic Compatibility such products are marked as follows: CE-0085XXXXX (for RS 70/E MZ) CE-0085XXXXX (for RS 100/E MZ) CE-0085XXXXX (for RS 130/E MZ) CE-0085XXXXX (for RS 190/E) CE-0085XXXXX (for RS 250/E MZ) Legnago, 26.06.2007...

  • Page 3: Table Of Contents

    Contents Section Page Information and general warnings Information about the instruction manual Guarantee and responsibility Safety and prevention Introduction Personnel training Technical description of the burner Burner designation Models available Burner categories- Countries of destination Technical data Packaging Overall dimensions Firing rates Burner components Burner equipment...

  • Page 4: Information And General Warnings

    Information and general warnings Information about the instruction manual Introduction DANGER: LIVE COMPONENTS The instruction manual supplied with the burner: This symbol indicates operations which, if not is an integral and essential part of the product and must not carried out correctly, lead to electric shocks be separated from it;...

  • Page 5: Safety And Prevention

    Safety and prevention Introduction burners have been designed and built in compliance In particular: with current regulations and directives, applying the known tech- it can be applied to boilers operating with water, steam, dia- nical rules of safety and envisaging all the potential danger situ- thermic oil, and to other users expressly named by the man- ations.

  • Page 6: Technical Description Of The Burner

    BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Voltage Code RS 70/E MZ 3 ~ 400 / 230V - 50Hz RS 70/E MZ 3 ~ 400 / 230V - 50Hz RS 100/E MZ 3 ~ 400 / 230V - 50Hz RS 100/E MZ...

  • Page 7: Technical Data

    Technical description of the burner Technical data Model RS 70/E MZ RS 100/E MZ RS 130/E MZ RS 190/E RS 250/E MZ Type 828 T2 829 T2 830 T2 836 T2 866 T1 Output maximum 465 - 814 698 - 1163...

  • Page 8: Firing Rates

    Technical description of the burner Firing rates RS 70/E MZ RS 190/E D882 D8034 RS 100/E MZ RS 250/E MZ RS 130/E MZ Fig. 3 The maximum output is chosen within area A (and B for RS Warning 130/E MZ) of the diagram.

  • Page 9: Burner Components

    Technical description of the burner Burner components RS 190/E RS 70-100-130/E MZ RS 250/E MZ D8038 RS 190/E seen from A RS 250/E MZ Fig. 5 1 Combustion head 13 Clean contacts relay 22 Air pressure socket 2 Ignition electrode 14 Filter to protect against radio distur- 23 Flame sensor probe 3 Screw for combustion head adjustment...

  • Page 10: Control Box For The Air/Fuel Ratio

    Technical description of the burner 3.10 Control box for the air/fuel ratio Fig. 6 D8266 Introduction Technical Data The control box for the air/fuel ratio (hereafter referred to simply Electrical supply AC 230 V - 15% / as the control box), that equips the burners of the RS range, car- +10% ries out a series of integrated functions in order to optimise Frequency...

  • Page 11: Servomotors

    Technical description of the burner 3.11 Servomotors Introduction The servomotors that equip the burners of the RS range work directly on the air damper and the gas butterfly valve, without mechanical lever- ages but via the interposition of an elastic coupling. They are commanded by the control box, which constantly checks their position by means of a return signal from the optic sensor inside the ser- vomotor.

  • Page 12: Installation

    Installation Notes on safety for the installation After carefully cleaning all around the area where the burner will be installed, and arranging the correct lighting of the environment, proceed with the installation operations. All the installation, maintenance and disassem- The installation of the burner must be carried out bly operations must be carried out with the elec- by qualified personnel, as indicated in this man- tricity supply disconnected.

  • Page 13: Securing The Burner To The Boiler

    Make holes in the plate shutting off the combustion chamber, as illustrated in Fig. 10. The position of the threaded holes can be marked using the thermal insulation screen supplied with the burner. Fig. 10 RS 70/E MZ 275-325 M 12 RS 100/E MZ...

  • Page 14: Pre-Calibration Of The Combustion Head (Only For The Model Rs 130/E Mz)

    Installation Securing the burner to the boiler Before fixing the burner to the boiler, check from the opening of the blast tube that the probe and the electrode are correctly positioned, as in Fig. 12. If, in the previous check, the position of the probe or electrode was not correct, remove the screw 1)(Fig. 13), extract the inner part 2)(Fig.

  • Page 15: Combustion Head Adjustment

    450 Mcal/h (approx. 520 kW). Example RS 70/E MZ, burner output = 581 kW. According to diagram Fig. 17 the gas and air adjustments for this output are carried out on notch 3.
  • Page 16 Installation Once the combustion head adjustment is completed: When fitting the burner on the two guides, it is reassemble the burner on the guides 3) at about 100 mm advisable to gently draw out the high voltage from the pipe coupling 4) - burner in the position shown in cable and flame detection probe cable until they Fig.

  • Page 17: Assembly Of The Gas Train

    Installation Assembly of the gas train The gas train is type-approved according to standard EN 676 and is sup- plied separately from the burner, with the code indicated in Appendix B. The gas train can enter the burner from the right or left side, depending on which is the most convenient, see Fig.

  • Page 18: Electrical Wiring

    Installation 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 19: Calibration Of The Thermal Relay

    Installation 4.10 Calibration of the thermal relay The thermal relay is used to avoid damage to the motor owing to a strong increase in absorption or the lack of a phase. For the calibration, refer to the table given in electrical layout no.

  • Page 20: 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 21: 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 and turn the switch of Fig. 28 to position “1”. Make sure that the lamps or testers connected to the solenoids, or indicator lights on the solenoids themselves, show that no voltage is present.
  • Page 22 Start-up, calibration and operation of the burner Maximum gas pressure switch Adjust the maximum gas pressure switch after having per- formed all other burner adjustments with the maximum gas pressure switch set to the end of the scale (Fig. 30). With the burner operating at maximum output, reduce adjust- ment pressure by slowly turning the relative knob anticlockwise until the burner locks out.

  • Page 23: Operator Panel With Lcd Display

    Start-up, calibration and operation of the burner Operator panel with LCD display Description of the symbols Lock-out lamp Lockout Flame presence Valve powered Ignition transformer powered Fan motor powered Pre-heater active only for burners of fuel oil Fig. 33 Request for heat D8268 Parameters Mode active Key to units of measurement...

  • Page 24: Visualisation And Programming Modes

    Start-up, calibration and operation of the burner Visualisation and programming modes The Operator Panel, and especially the display visualisation, has 4 working modes: Normal mode Info Mode (InFo) Service Mode (Ser) Parameters Mode (PArA) The information for accessing and operating at the various levels is given below. Normal Mode Visualises the operation conditions and allows you to modify the operation point of the burner manually.
  • Page 25 Start-up, calibration and operation of the burner m³ m³/h l/h % The display visualises alternately an error code and a diagnostic, which does not take the system into safety mode. m³ m³/h l/h % Reset procedure The burner is in lockout when the red indicator light on the Operator Panel is switched on m³...
  • Page 26 Start-up, calibration and operation of the burner From Normal Mode, using the keys of the Operator Panel, it is possible to activate one of the three visualisation/programming modes: Info Mode (InFo) Visualisation modes Service Mode (Ser) Service Mode (Ser) Programming modes Info Mode Service Mode Visualises the general system information.
  • Page 27 Start-up, calibration and operation of the burner Parameters Mode Visualises and allows you to modify/program the complete list of To access this level, refer to “Access procedure with password”. parameters, shown in the table on page 34. Once the access procedure has been carried out, the display will The factory-set parameters are not visible.
  • Page 28 Start-up, calibration and operation of the burner Parameter modification procedure Procedure for inserting and adjusting points on the modulation curve Nine adjustment/calibration points (P1 - P9) can be inserted in After accessing the level the control box for each servomotor, varying their position by de- and group of parameters, grees and, consequently, the quantity of air and fuel introduced.

  • Page 29: Operation Sequence Of The Burner

    Start-up, calibration and operation of the burner Operation sequence of the burner Signal ON Operation Signal OFF Start-up Switching off Checking of Any signal is allowed seal TSA1 Number of the phase 10 12 22 24 30 36 38 40 42 44 60 62 70 72 74 80 81 82 83 Thermostat/pressure switch safety TS...

  • Page 30: Start-Up Procedure

    Start-up, calibration and operation of the burner Start-up procedure Check that the display of the Operator Panel shows request for heat and “OFF Upr”: this means it is necessary to set the modulation curve of the burner. m³ m³/h l/h % Access the Parameters Level referring to “Access procedure with password”.
  • Page 31 Press simultaneously the keys “+” and “-” (esc) twice: the display will visualise the current load position. Factory settings Burner Point of the curve RS 70/E MZ RS 100/E MZ RS 130/E MZ RS 190/E RS 250/E MZ 20° 20°...

  • Page 32: Calc Function

    Start-up, calibration and operation of the burner CALC function D7908 D7909 original curve CALC+ CALC- Recalculation Point of the curve Fig. 35 Point of the curve Fig. 36 The diagram of Fig. 35 shows how the fuel modulation curve is The diagram of Fig.

  • Page 33: Steady State Operation

    Start-up, calibration and operation of the burner 5.11 Steady state operation 5.15 Measuring the ionisation current The burner is fitted with an ionisation system to check that a Burner without modulating operation kit flame is present. Once the start-up cycle is completed, the servomotor command The minimum current for control box operation is 4 µA.

  • Page 34: List Of Parameters

    5.18 List of parameters Parameter Values interval Number of Unit of mea- Degree of Predefined Modification Access mode elements surement precision setting No. par. Description Min. Max. General parameters Control box identification date Reading only Info Mode Control box identification number Reading only 65535 Info Mode...
  • Page 35 Parameter Values interval Number of Unit of mea- Modifica- Degree of preci- Predefined Access mode elements surement tion sion setting No. par. Description Min. Max. Selection of the burner operation during the interruption of the switch-over with the system of remote management. 0 = burner switched off With modulating operation the settings of the values are the following: 0...19.9 = burner switched off...
  • Page 36 Parameter Values interval Number of Unit of mea- Modifica- Degree of preci- Predefined Access mode elements surement tion sion setting No. par. Description Min. Max. Gas: Selection of flame sensor 0 = QRB.../ QRC Modification Parameters Mode 1 = ION / QRA Gas: Selection of the pre-purging function Modification Parameters Mode...
  • Page 37 Parameter Values interval Number of Unit of mea- Modifica- Degree of preci- Predefined set- Access mode elements surement tion sion ting No. par. Description Min. Max. Position of the air servomotor in absence of flame (°) Modification 0° 90° 0.1° 0°;...

  • Page 38: 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. To reset the start-up conditions, refer to “Reset procedure”. When the burner starts up again, the red LED goes out. List of error codes Error Diagnostic...
  • Page 39 Faults - Possible causes - Solutions Error Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Reference error of a servomotor The reference of the fuel servomotor was not successful. Bit 0 It was not possible to reach the reference point. Reference error of the fuel servomotor Valence 1 1.
  • Page 40 Faults - Possible causes - Solutions Error Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Relay supervision error 2 Safety valve 3 Ignition transformer The relay does not start up Carry out a reset; if the error arises repeatedly, replace the unit 4 Fuel valve 1 5 Fuel valve 2 6 Fuel valve 3...
  • Page 41 Faults - Possible causes - Solutions Error Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Internal error – backup / restoration Restoration – OK, but backup < compared with set data of Restoration successful, but the backup data installed are fewer than those currently present in current system the system.

  • Page 42: Maintenance

    Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, Before carrying out any maintenance, cleaning or checking oper- safety, yield and duration of the burner. ations: It allows you to reduce consumption and polluting emissions and disconnect the electricity supply from the burner by to keep the product in a reliable state over time.

  • Page 43: Opening The Burner

    Maintenance Opening the burner Closing the burner Disconnect the electrical supply from the burner. Push the burner up to approximately 100 mm from the pipe Loosen the 4 screws 1) and remove the hood 2). coupling. Assemble the two extensions supplied on the guides 4) (ver- Reinsert the cables and slide the burner as far as the stop.

  • Page 44: A Appendix - Electrical Panel Layout

    Appendix - Electrical panel layout Index of layouts Indication of references Functional layout REC27... Functional layout REC27... Functional layout REC27... Electrical wiring that the installer is responsible for Functional layout RWF40... Indication of references / 1 .A 1 Sheet no. Co-ordinates Wiring layout key - Control box for the air/fuel ratio...
  • Page 45 Appendix - Electrical panel layout...
  • Page 46 Appendix - Electrical panel layout...
  • Page 47 Appendix - Electrical panel layout...
  • Page 48 Appendix - Electrical panel layout...
  • Page 49 Appendix - Electrical panel layout...

  • Page 50: B Appendix - Accessories (On Request)

    3000826 PVP Kit (Pressure Valve Proving) Code 3010344 for RS 70/E MZ and RS 100/E MZ Note: for RS 130/E MZ, RS 190/E and RS 250/E MZ, the Kit is supplied as standard equipment with the burner. Continuous Purging Kit...
  • Page 51 Appendix - Accessories (on request) Kit for LPG operation Combustion Obtainable output with Burner Kit Code head the Kit RS 70/E MZ in progress 814 kW RS 70/E MZ in progress RS 100/E MZ in progress 1163 kW RS 100/E MZ...

  • Page 52: C Appendix - Gas Supply Pressure

    Appendix - Gas supply pressure The adjacent tables show minimum load losses along the gas sup- ∆p (mbar) RS 70/E MZ ply line depending on the maximum burner output operation. Column 1 Ø 1”1/4 Ø 1”1/2 Ø 2” Ø 2”...

  • Page 53: D Appendix - Firing Rate On Basis Of Air Density

    Appendix - Firing rate on basis of air density The firing rate of the burner shown in the manual is valid for a 4 -Trace a vertical line from point A, Fig. 41, and find the maxi- room temperature of 20 °C and an altitude of 0 m above sea level mum pressure H2 of the firing rate.
  • Page 56 RIELLO S.p.A. I - 37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.rielloburners.com Subject to modifications...

This manual is also suitable for:

Rs 70/eRs 100/eRs 130/eRs 190/eRs 250/e mz828 t2 ... Show all

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