Riello RS 44/E MZ Installation, Use And Maintenance Instructions
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Riello RS 44/E MZ Installation, Use And Maintenance Instructions

Riello RS 44/E MZ Installation, Use And Maintenance Instructions

Forced draught gas burners
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Installation, use and maintenance instructions
Forced draught gas burners
GB
Progressive two-stage or modulating operation
CODE
3789400 - 3789410
3789401 - 3789411
3789500 - 3789510
3789501 - 3789511
3789530 - 3789540
3789531 - 3789541
MODEL
RS 34/E MZ
RS 34/E MZ
RS 44/E MZ
RS 44/E MZ
RS 44/E MZ
RS 44/E MZ
TYPE
888 T
888 T
889 T
889 T
889 T
889 T
2916383 (9) - 11/2012

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Summary of Contents for Riello RS 44/E MZ

  • Page 1 3789400 - 3789410 RS 34/E MZ 888 T 3789401 - 3789411 RS 34/E MZ 888 T 3789500 - 3789510 RS 44/E MZ 889 T 3789501 - 3789511 RS 44/E MZ 889 T 3789530 - 3789540 RS 44/E MZ 889 T...
  • Page 3 NOx max: 103 mg/kWh RS 44/E MZ CO max: 2 mg/kWh NOx max: 89 mg/kWh Legnago, 19.11.2012 Executive Director Research & Development Director RIELLO S.p.A. - Burner Department RIELLO S.p.A. - Burner Department Mr. I. Zinna Mr. R. Cattaneo 6383...
  • Page 4 The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001. Manufacturer’s Declaration RIELLO S.p.A. declares that the following products comply with the NOx emission limits specified by German standard “1. BImSchV release 26.01.2010”.

  • Page 5: Table Of Contents

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

  • Page 6: Information And General Instructions

    Information and general instructions Information about the instruction manual Other symbols Introduction The instruction manual supplied with the burner: ENVIRONMENTAL PROTECTION is an integral and essential part of the product and must not  This symbol gives indications for the use of be separated from it;...

  • Page 7: 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 8: Technical Description Of The Burner

    RS 34/E MZ 230V - 50Hz/60Hz 3789401 - 3789411 RS 34/E MZ 230V - 50Hz/60Hz 3789500 - 3789510 RS 44/E MZ 230V - 50Hz/60Hz 3789501 - 3789511 RS 44/E MZ 3 ~ 400 / 230V - 50/60Hz 3789530 - 3789540...

  • Page 9: Technical Data

    Technical description of the burner Technical data Model RS 34/E MZ RS 44/E MZ RS 44/E MZ Type 888 T 889 T 889 T Output maximum 125 ÷ 390 203 ÷ 550 203 ÷ 550 Mcal/h 108 ÷ 336 175 ÷ 473 175 ÷...

  • Page 10: Firing Rates

    RS 34/E MZ = 45 kW in Ch. 4.7. RS 44/E MZ = 80 kW The firing rates were obtained in spe- cial test boilers, according to EN 676 regulations.

  • Page 11: Burner Components

    Gas train flange N° 3 plugs for electrical wiring (RS 34-44/E MZ single phase)   Flange gasket N° 4 plugs for electrical wiring (RS 44/E MZ three-phase)   4 screws to fix the flange: M8 x 25 Instruction manual ...

  • Page 12: 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 AC 230V - 15% / Electrical supply 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 50/60 Hz +/- 6%...

  • Page 13: 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 14: 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 by qualified personnel, as indicated in this man- electricity supply disconnected.

  • Page 15: Securing The Burner To The Boiler

    Securing the burner to the boiler Introduction The RS 34/E MZ - RS 44/E MZ burners are suitable for working on both flame inversion boilers* (in this case the long head model is recommended) and boilers with a combustion chamber with bot-...
  • Page 16 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. 13. If, in the previous check, the position of the probe or electrode was not correct, remove the screw 1)(Fig. 14), extract the inner part 2)(Fig.

  • Page 17: Adjustment Of The Combustion Head

    (Fig. 15), adjust, then block. CAUTION Example RS 44/E MZ, burner output = 300 kW. From diagram of Fig. 16 you can see that for this output the air should be adjusted at notch 3, subtracted from the value of the pressure in the chamber.
  • Page 18 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 19: 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 ...

  • Page 20: 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 ...

  • Page 21: Calibration Of The Thermal Relay

    NOTE The RS 44/E MZ three-phase model leaves the factory for 400V power supplies. If the power supply is 230V, change the motor connec- tion (from star to triangle) and the calibration of the thermal relay. MODULATING OPERATION If connecting the output power regulator kit RWF40, the TR thermostat/pressure switch and the TL thermostat/pressure switch must be removed (if the 4-pole socket becomes unhooked, apply the supplied cover).

  • Page 22: 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 23: 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. 27 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 24 Start-up, calibration and operation of the burner Minimum gas pressure switch Adjust the minimum gas pressure switch after having per- formed all other burner adjustments with the pressure switch set to the start of the scale (Fig. 29). With the burner operating at maximum output, increase adjust- ment pressure by slowly turning the relative knob clockwise until the burner locks out.

  • Page 25: 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. 30 Heat request D8268 Parameters mode active Key to units of measurement...

  • Page 26: 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 27 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 28 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 29 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 30 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 31: 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 12 22 24 30 36 38 40 42 44 60 62 70 72 74 80 81 82 83 Thermostat/pressure switch safety TS...

  • Page 32: Start-Up Procedure

    Start-up, calibration and operation of the burner Start-up procedure Check that the display of the Operator Panel shows heat request 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 33 “546” and “545” according to “Parameter modification procedure”. Press simultaneously the keys “+” and “-” (esc) twice: the display will visualise the current load position. Factory settings Burner Point of the curve RS 34/E MZ RS 44/E MZ 13° 18° 20° 30° 90° 90° 90°...

  • Page 34: Calc Function

    Start-up, calibration and operation of the burner CALC function D7908 D7909 original curve CALC+ CALC- Recalculation Point of the curve Fig. 33 Point of the curve Fig. 34 The diagram of Fig. 33 shows how the fuel modulation curve is The diagram of Fig.

  • Page 35: 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 36: List Of Parameters

    5.18 List of parameters Parameter Values interval Unit of Number of Degree of Predefined measure- Modification Access mode elements precision setting Description Min. Max. ment par. General parameters Control box identification date Reading only Info mode Control box identification number Reading only 65535 Info mode...
  • Page 37 Parameter Values interval Unit of Number of Modifica- Degree of pre- Predefined measure- Access mode elements tion cision setting Description Min. Max. ment par. 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 38 Parameter Values interval Unit of Number of Modifica- Degree of pre- Predefined measure- Access mode Description Min. Max. elements tion cision setting ment par. 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 39 Parameter Values interval Unit of Number of Modifica- Degree of pre- Predefined measure- Access mode Description Min. Max. elements tion cision setting ment par. Position of the air servomotor in absence of flame (°) Modification 0° 90° 0.1° 0°; 90°; 45° Parameters mode Index 0 = standby position Index 1 = pre-purging position...

  • Page 40: 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 Failure Diagnostic...
  • Page 41 Faults - Possible causes - Solutions Failure 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 42 Faults - Possible causes - Solutions Failure Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Relay supervision error 2 – Safety valve 3 Ignition transformer 4 Fuel valve 1 The relay does not start up Carry out a reset; if the error arises repeatedly, replace the unit 5 Fuel valve 2 6 Fuel valve 3 Carry out a reset;...
  • Page 43 Faults - Possible causes - Solutions Failure Diagnostic Meaning of the system REC27.100A2 Recommended measures code code Backup – the CRC of a page is not correct The series of backup data is not valid; restoration is not possible Backup – the identification of the burner is not defined Define the identification of the burner and repeat the backup After restoration, the pages are still in INTERRUPTION Repeat the reset and backup...

  • Page 44: 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 45: Opening The Burner

    Maintenance Opening the burner Closing the burner Push the burner up to approximately 100 mm from the pipe  Disconnect the electrical supply from the burner;  loosen the screws 1) and remove the cover 2). coupling;  Remove the nuts 2)(Fig. 18, fit them on the supplied exten- Reinsert the cables and slide the burner as far as the stop;...

  • Page 46: 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 Electrical wiring kit Electrical connections for external RWF 40... kit Indication of references /1.A1 Sheet no.
  • Page 47 Appendix - Electrical panel layout Wiring layout key - Control box for the air/fuel ratio - 4 pole socket - Operator panel - 5 pole socket - Filter to protect against radio disturbance - 6 pole socket - Burners components - 7 pole socket - Boiler components - Operator panel connector...
  • Page 48 Appendix - Electrical panel layout 6383...
  • Page 49 Appendix - Electrical panel layout 6383...
  • Page 50 Appendix - Electrical panel layout 6383...
  • Page 51 Appendix - Electrical panel layout 6383...
  • Page 52 Appendix - Electrical panel layout 6383...
  • Page 53 Appendix - Electrical panel layout 6383...
  • Page 54 Appendix - Electrical panel layout 6383...
  • Page 55 Appendix - Electrical panel layout 6383...
  • Page 56 Appendix - Electrical panel layout 6383...

  • Page 57: Appendix - Accessories (On Request)

    Head length obtained Burner Kit Code Standard head length with the kit RS 34/E MZ 3010428 216 mm 351 mm RS 44/E MZ 3010429 216 mm 351 mm Kit for LPG operation Burner Kit Code Output kW Blast tube length...

  • Page 58: Appendix - Gas Supply Pressure

    2.0 mbar 10.9 - 2.0 8.9 mbar A maximum output of 350 kW shown in Table RS 44/E MZ corresponds to 8.9 mbar pressure, column 1. This value serves as a rough guide; the effective output must be measured at the gas meter.

  • Page 59: 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 point A that must remain within the firing rate (Fig. 39). room temperature of 20°C and an altitude of 0m above sea level 4 -Trace a vertical line from point A, Fig.
  • Page 60 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 34/e mz888 t889 t

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