Riello RS 34 MZ Installation, Use And Maintenance Instructions
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Riello RS 34 MZ Installation, Use And Maintenance Instructions

Forced draught gas burner
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Installation, use and maintenance instructions
Forced draught gas burners
GB
Progressive two-stage operation
CODE
20190310
20190311
MODEL
RS 34 MZ
RS 44 MZ
20190369 (1) - 06/2021

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Summary of Contents for Riello RS 34 MZ

  • Page 1 Installation, use and maintenance instructions Forced draught gas burners Progressive two-stage operation CODE MODEL 20190310 RS 34 MZ 20190311 RS 44 MZ 20190369 (1) - 06/2021...
  • Page 2 Original instructions...

  • Page 3: Table Of Contents

    Contents Information and general warnings............................3 Information about the instruction manual ........................3 1.1.1 Introduction.................................. 3 1.1.2 General dangers................................3 1.1.3 Other symbols ................................3 1.1.4 Delivery of the system and the instruction manual...................... 4 Guarantee and responsibility............................4 Safety and prevention................................5 Introduction..................................
  • Page 4 Contents 5.7.3 Flame presence check ...............................27 Burner operation ................................28 5.8.1 Burner start-up ................................28 5.8.2 Steady state operation ...............................28 5.8.3 Ignition failure................................28 Final checks (with burner operating) ..........................29 Maintenance ....................................30 Notes on safety for the maintenance .........................30 Maintenance programme ............................30 6.2.1 Maintenance frequency..............................30 6.2.2 Safety test - with no gas supply ..........................30...

  • Page 5: Information And General Warnings

    Information and general warnings Information and general warnings Information about the instruction manual 1.1.1 Introduction DANGER: EXPLOSION The instruction manual supplied with the burner: This symbol signals places where an explosive  is an integral and essential part of the product and must not atmosphere may be present.

  • Page 6: Delivery Of The System And The Instruction Manual

    Information and general warnings 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;...

  • Page 7: Safety And Prevention

    Safety and prevention Safety and prevention Introduction The burners have been designed and built in compliance with frequency of the electrical power supply, the minimum and current regulations and directives, applying the known technical maximum deliveries for which the burner has been regulated, the safety rules and envisaging all the potential danger situations.

  • Page 8: Technical Description Of The Burner

    110V / 50-60Hz 1/230/50-60 230/50-60 BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Power supply voltage Start-up Code RS 34 MZ 1N ~ 230V - 50-60Hz Direct 20190310 RS 44 MZ 1N ~ 230V - 50-60Hz Direct 20190311 Tab. A 20190369...

  • Page 9: Technical Data

    Technical description of the burner Technical data Model RS 34 MZ RS 44 MZ Output G20 - G25 G20 - G25 Max. 130 ÷ 390 200 ÷ 550 Mcal/h 112 ÷ 336 172 ÷ 473 Min. Mcal/h Fuel Natural gas: G20 - G25 Pressione gas alla potenza max.

  • Page 10: Maximum Dimensions

    The dimensions of the open burner are indicated by dimension U. T - T ( 1 ) 20152185 20152185 Fig. 1 T - T (1) RS 34 MZ 1”1/2 220 - 355 RS 44 MZ 1”1/2 220 - 355 Tab. D...

  • Page 11: Firing Rates

    20 °C, an of the diagram: atmospheric pressure of 1013 mbar (approx. 0 m a.s.l.), and with the combustion head adjusted as RS 34 MZ = 45 kW ATTENTION shown on page 18. RS 44 MZ = 80 kW...

  • Page 12: Test Boiler

    Technical description of the burner Test boiler The firing rates were obtained in special test boilers, according to Although combination is guaranteed when boiler has a CE type- EN 676 regulations. approval, preliminary tests are recommended for boilers or furnaces having a combustion chamber size much different than In Fig.

  • Page 13: Burner Description

    Technical description of the burner Burner description 11 7 20190512 Fig. 4 Combustion head NOTE: Ignition electrode Burner lockout may occur Screw for combustion head adjustment CONTROL BOX LOCKOUT: Air pressure switch (differential type) if the control box button lights up, it indicates that the burner is in Flame sensor probe lockout.

  • Page 14: Electrical Panel Description

    - one for “1st - 2nd stage operation” Ionisation probe connector Areas for passage of electric cables Relay Control box base Filter to protect against radio disturbance Ignition transformer Sockets for electrical connection Capacitor (only for RS 34 MZ) 20190369...

  • Page 15: 3.11 Control Box Rmg88

    The control box RMG88... is a safety device! ATTENTION Avoid opening or modifying it, or forcing its opera- tion. Riello S.p.A. cannot assume any responsibil- ity for damage resulting from unauthorised interventions!  All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel.

  • Page 16: Servomotor (Sqn90

    Technical description of the burner 3.12 Servomotor (SQN90...) Important notes To avoid accidents, material or environmental damage, observe the following instructions! Avoid opening, modifying forcing ATTENTION servomotor.  All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel. ...

  • Page 17: Installation

    Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner is to The installation of the burner must be carried out be installed, and arranging for the environment to be illuminated by qualified personnel, as indicated in this manual correctly, proceed with the installation operations.

  • Page 18: Operating Position

    The range of available lengths L, are as follows: Blast tube Short (mm) Long (mm) D3834 RS 34 MZ RS 44 MZ Fig. 11 For boilers with front flue passes 13)(Fig. 11), a protection in refractory material 11) must be inserted between the boiler Fix the unit 9)(Fig.

  • Page 19: Access To Head Internal Part

    Installation Access to head internal part In order to reach inside the combustion head (Fig. 12) proceed as follows:  remove the screw 1) and the internal part 2). The burner-boiler seal must be hermetic; after burner start-up check there is no leakage of flue gases into the external environment.

  • Page 20: Combustion Head Adjustment

    Installation Combustion head adjustment Installation operations are now at the stage where the blast tube and sleeve are secured to the boiler as shown in Fig. 14. It is therefore particularly easy to adjust the combustion head. Air adjustment Rotate the screw 1)(Fig. 14) until the notch on the lamina 2)(Fig.

  • Page 21: Gas Supply

    Installation Gas supply Explosion danger due to fuel leaks in the presence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure the fuel shut-off valve is closed before performing any operation on the burner. The fuel supply line must be installed by qualified personnel, in compliance with current standards and laws.

  • Page 22: Gas Train

    Installation 4.9.2 Gas train 4.9.4 Gas pressure Type-approved in accordance with EN 676 and supplied Tab. F indicates the pressure drops of the combustion head and separately from the burner. gas butterfly valve depending on the burner operating output. 1 p (mbar) 2 p (mbar) 4.9.3 Gas train installation...
  • Page 23 1, the pressure value closest to the result you want. – Read the corresponding output on the left. Example with natural gas G 20 for RS 34 MZ: Maximum output operation Gas pressure at test point 1)(Fig. 23) 9.3 mbar Pressure in combustion chamber 2.0 mbar...

  • Page 24: Electrical Connections

    Installation 4.10 Electrical connections Notes on safety for the electrical wiring  The electrical wiring must be carried out with the electrical supply disconnected.  Electrical wiring must be made in accordance with the regulations currently in force in the country of destination and by qualified personnel.

  • Page 25: Supply Cables And External Connections Passage

    Installation 4.10.1 Supply cables and external connections passage All cables to connect to the burner are connected to the appropriate sockets on the side of the burner (Fig. 24), (use the supplied plugs for the connections). The use of the cable grommets can take various forms. By way of example we indicate the following mode: RS 34-44 MZ single phase 7-pole socket for single phase power supply, TL...

  • Page 26: 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 by qualified personnel, as indicated in this manual Before starting up the burner, refer to section and in compliance with the standards and "Safety test - with no gas supply”...

  • Page 27: Burner Start-Up

    Start-up, calibration and operation of the burner Burner start-up Close the remote controls and set:  switch 1)(Fig. 28) to "Burner ON" position  switch 2)(Fig. 28) to "1st STAGE" position. As soon as the burner starts check the direction of rotation of the Burner off 1st stage fan blade, looking through the flame inspection window 17)(Fig.

  • Page 28: 2Nd Stage Burner Output

    Start-up, calibration and operation of the burner 5.6.2 2nd stage burner output 5.6.3 1st stage burner output 2nd stage output of the burner must be set within the firing rate Burner power in 1st stage operation must be selected within the firing rate range Fig.

  • Page 29: Pressure Switch Adjustment

    Start-up, calibration and operation of the burner Pressure switch adjustment 5.7.1 Air pressure switch Adjust the air pressure switch after having performed all other burner adjustments with the air pressure switch set to the start of the scale (Fig. 31). With the burner operating in 1st stage, increase adjustment pressure by slowly turning the relative knob clockwise until the burner locks out.

  • Page 30: Burner Operation

    Start-up, calibration and operation of the burner Burner operation 5.8.1 Burner start-up STANDARD IGNITION (no. = seconds from instant 0) Remote control TL closes. Servomotor starts: it rotates during opening up to the angle set on cam St1. After about 3s: The control box starting cycle begins.

  • Page 31: Final Checks (With Burner Operating)

    Start-up, calibration and operation of the burner Final checks (with burner operating)   Open the thermostat/pressure switch TL The burner must stop  Open the thermostat/pressure switch TS  Turn the gas maximum pressure switch knob to the  minimum end of scale position The burner must stop in lockout ...

  • Page 32: Maintenance

    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 safety, yield and duration of the burner. operations: It allows you to reduce consumption and polluting emissions and to keep the product in a reliable state over time.

  • Page 33: Safety Components

    Maintenance Boiler Clean the boiler as indicated in its accompanying instructions in order to maintain all the original combustion characteristics intact, especially: the flue gas temperature and combustion chamber pressure. Combustion control If the combustion values measured before starting maintenance do not comply with applicable Standards or do not indicate efficient combustion, consult the table below or contact our Technical Support Service to implement the necessary...

  • Page 34: Opening The Burner

    Maintenance Opening the burner  Remove the screws 2)(Fig. 11 on page 16) and tighten the two extensions 18)(Fig. 4 on page 11) supplied with the Disconnect the electrical supply from the burner burner. by means of the system main switch. ...

  • Page 35: Faults - Possible Causes - Solutions

    Faults - Possible causes - Solutions Faults - Possible causes - Solutions In the event the burner stops, in order to prevent In the event there are further lockouts or faults any damage to the installation, do not unblock the with the burner, the maintenance interventions burner more than twice in a row.
  • Page 36 Faults - Possible causes - Solutions Signal Problem Possible cause Recommended remedy 10 blinks The burner does not Incorrect electrical wiring Check switch on, and the lock- out appears The burner goes into Defective control box Replace lockout Presence of electromagnetic disturbances in the Filter or eliminate thermostat lines Presence of electromagnetic disturbance...

  • Page 37: A Appendix - Accessories

    Appendix - Accessories Appendix - Accessories Kit for LPG operation Burner Output kW Code RS 34 MZ 120/200 - 470 3010423 RS 44 MZ 120/200 - 470 3010424 Extended head kit Town gas kit Burner Code Burner Code RS 34 MZ...

  • Page 38: B Appendix - Electrical Panel Layout

    Appendix - Electrical panel layout Appendix - Electrical panel layout Index of layouts Indication of references RS 34 MZ Operation layout RS 44 MZ Operation layout Electrical connection set by installer Indication of references / 1 . A 1 Sheet no.
  • Page 39 Appendix - Electrical panel layout 20190369...
  • Page 40 Appendix - Electrical panel layout 20190369...
  • Page 41 Appendix - Electrical panel layout 20190369...
  • Page 42 Appendix - Electrical panel layout 20190369...
  • Page 43 Appendix - Electrical panel layout Wiring layout key Electrical control box Filter to protect against radio disturbance Burner components Boiler components Capacitor Ionisation probe connector Remote lockout signalling Lockout YVPS Hour counter Hour counter 2 nd stage Ionisation probe Burner manual stop switch Relay Fan motor Air pressure switch...
  • Page 44 Registered Office - 公司注册所在地 : 生产场所 : Manufacturing site: RIELLO S.p.A. Riello Heating Equipment (Shanghai) CO., LTD Riello Heating Equipment (Shanghai) CO., LTD 利雅路热能设备 ( 上海 ) 有限公司 I-37045 Legnago (VR) No. 388, Jinbai Road - Jinshan Industrial Zone 上海市金山工业区金百路 388 号...

This manual is also suitable for:

Rs 44 mz2019031020190311

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