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Riello RS 310/EV O2 ULX Installation, Use And Maintenance Instructions

Forced draught gas burners
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Installation, use and maintenance instructions
Forced draught gas burners
GB
Modulating operation
CODE
20205442
20205443
MODEL
RS 310/EV O2 ULX
RS 510/EV O2 ULX
TYPE
S045T2
S046T2
20205511 (4) - 09/2023

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Summary of Contents for Riello RS 310/EV O2 ULX

  • Page 1 Installation, use and maintenance instructions Forced draught gas burners Modulating operation CODE MODEL TYPE 20205442 RS 310/EV O2 ULX S045T2 20205443 RS 510/EV O2 ULX S046T2 20205511 (4) - 09/2023...
  • Page 2 Translation of the 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................................
  • Page 4 Contents Burner start-up ................................30 Air / fuel adjustment ..............................31 5.4.1 Air adjustment for maximum output ...........................31 5.4.2 Air/fuel adjustment and output modulation system ....................31 5.4.3 Burner adjustment..............................31 5.4.4 Output upon ignition ..............................31 5.4.5 Maximum output ................................31 5.4.6 Minimum output .................................32 Final adjustment of the pressure switches .........................32 5.5.1 Air pressure switch..............................32...

  • 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 at-  is an integral and essential part of the product and must not mosphere 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 the type and pressure of the fuel, the voltage and frequency of the current regulations and directives, applying the known technical electrical power supply, the minimum and maximum deliveries for 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 Burner designation Range: R Fuel: Natural gas Light Oil LS Light Oil/Natural gas Heavy Oil Size: Adjustment: Two stage (light oil / proportional valve (gas) Mechanical cam Electronic Cam Electronic cam and variable speed (with Inverter) Electronic cam with integrated Inverter Electronic cam and suitable for Oxygen Control (O EV O...

  • Page 9: Models Available

    Technical description of the burner Models available Designation Voltage Start-up Code RS 310/EV O2 ULX FS1/FS2 3/400/50 Inverter 20205442 RS 510/EV O2 ULX FS1/FS2 3/400/50 Inverter 20205443 Tab. A Burner categories - Countries of destination Gas category Destination country LU - PL...

  • Page 10: Maximum Dimensions

    * The gas adaptor is set also for DN 80 bore. the L and R positions. WARNING 20208259 Fig. 1 RS 310/EV O2 ULX 1015 176 518 DN65 480 290 1104 886 RS 510/EV O2 ULX 1015 176 518 DN65 527 290 1104 886 Tab.

  • Page 11: Firing Rates

    The maximum output must be higher than the following values If the chosen maximum output is lower than the following val- (Tab. F): ues (Tab. G): Model Model RS 310/EV O2 ULX 1250 RS 310/EV O2 ULX 1860 RS 510/EV O2 ULX 1900...

  • Page 12: Test Boiler

    Technical description of the burner Test boiler The burner/boiler combination does not pose any problems if the The firing rates were set in relation to special test boilers, accord- boiler is EC approved and its combustion chamber dimensions ing to EN 676 regulations. are similar to those indicated in the diagram (Fig.

  • Page 13: Burner Description

    Technical description of the burner 3.10 Burner description 20206286 Fig. 4 Lifting rings The burner can be opened to the right or to the left Fan motor without links to the fuel supply side. Air damper servomotor Combustion head gas pressure test point Combustion head Ignition electrode To open the burner see section “Access to head...

  • Page 14: Electrical Panel Description

    Technical description of the burner 3.11 Electrical panel description 20166943 9 18 Fig. 5 Electrical control box ON/OFF selector Safety button Earth terminal Supply cables and external connections passage. See sec- tion “Electrical wiring” on page 27 Light signaling “POWER ON” Main terminal supply board Relay with clean contacts for signaling the burner is in lock- Relay with clean contacts for signaling the burner is operat-...

  • Page 15: Control Box For The Air/Fuel Ratio (Lmv52

    Technical description of the burner 3.12 Control box for the air/fuel ratio (LMV52...) Warnings To avoid accidents, material or environmental damage, observe the following instructions! The LMV52 control box... is a safety device! Avoid WARNING opening or modifying it, or forcing its operation. Ri- ello S.p.A.
  • Page 16 Technical description of the burner Electrical connection of flame sensor It is important for signal transmission to be almost totally free – Line capacitance reduces the magnitude of the flame signal. of any disturbances or loss: – Use a separate cable. •...

  • Page 17: 3.13 Actuator

    Technical description of the burner 3.13 Actuator Warning notes To avoid injury to persons, damage to prop- erty or the environment, the following warn- ing notes should be observed! WARNING Do not open, interfere with or modify the ac- tuators! ...

  • Page 18: Pll52

    Technical description of the burner 3.14 PLL52... module (optional) Warnings To avoid accidents, material or environmen- tal damage, observe the following instruc- tions! WARNING Avoid opening, modifying or forcing the de- vice.  All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel. ...

  • Page 19: Oxygen Sensor Qgo20

    Technical description of the burner 3.15 Oxygen sensor QGO20 ... (optional) Warnings To avoid accidents, material or environmen- S9895 tal damage, observe the following instruc- tions! WARNING Avoid opening, modifying or forcing the oxy- gen sensor.  All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel.

  • Page 20: 3.15.1 Technical Data Qgo20

    Technical description of the burner 3.15.1 Technical data QGO20 Operating voltage of measuring cell’s: – QGO20.000D27 AC 230 V ±15 % – QGO20.000D17 AC 120 V °15 % (only with LMV52 ... with PLL52...) Mains frequency: 50...60 Hz ±6 % Power consumption: Max.

  • Page 21: 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 22: Operating Position

    2) and the blast tube 4).  The refractory can have a conical shape (minimum 60°). RS 310/EV O2 ULX This protective fettling must not compromise the extraction of the RS 510/EV O2 ULX blast tube.

  • Page 23: Access To Head Internal Part

    Installation Access to head internal part The burner leaves the factory set for opening to the right, there- fore maintaining the pin 1)(Fig. 14) in the housing. To open the burner towards the right, proceed as follows: disconnect the plug/socket 6)(Fig. 14) of the maximum gas pressure switch;...

  • Page 24: Combustion Head Adjustment

    3200 3400 3600 3800 following ranges: Max burner output (kW) RS 310/EV O2 ULX: 0 - 10 WARNING RS 510/EV O2 ULX: 0 - 10 RS 510/EV O2 ULX The adjustment cannot be carried out outside these ranges. No. Notches (air = gas)

  • Page 25: Central Gas Adjustment

    4.10.1 Central gas setting The factory setting for the central gas is with the following pas- sage holes (Fig. 19). RS 310/EV O2 ULX Central hole + 2 open holes RS 510/EV O2 ULX Central hole + 2 open holes If necessary, modify as indicated in “Firing rates”...

  • Page 26: Gas Feeding

    Installation 4.11 Gas feeding Explosion danger due to fuel leaks in the pres- The fuel supply line must be installed by qualified ence of a flammable source. personnel, in compliance with current standards and laws. Precautions: avoid knocking, attrition, sparks and WARNING heat.

  • Page 27: 4.11.4 Gas Pressure

    Natural gas G 20 NCV 9.45 kWh/Sm (8.2 Mcal/Sm RS 310/EV O2 ULX S10334 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 Burner output –...
  • Page 28 Installation To calculate the required gas pressure at test point P1)(Fig. 22), 20198299 set the MAX output required from the burner operation: – find the nearest output value. – Read the pressure at the test point P1)(Fig. 21). – Add this value to the estimated pressure in the combustion chamber.

  • Page 29: Electrical Wiring

    Installation 4.12 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 made in accordance with the regulations currently in force in the country of destination and by qualified personnel.

  • Page 30: Supply Cables And External Connections Passage

    Installation 4.12.1 Supply cables and external connections passage All the cables to be connected to the burner must be threaded through cable grommets. The use of the cable grommets can take various forms; by way of example see Fig. 23. Key (Fig.

  • 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: 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. Turn the switch of Fig. 25 to position “AUTO”. 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 33: Air / Fuel Adjustment

    Start-up, calibration and operation of the burner Air / fuel adjustment 5.4.4 Output upon ignition Air/fuel synchronisation is carried out with the relevant air and gas servomotors by logging a calibration curve by using the elec- Ignition must occur at a lower output than the max. operation out- tronic cam.

  • Page 34: Minimum Output

    Start-up, calibration and operation of the burner Indication for the burner ignition Calculate the pressure required downstream of the gas train: this value is given by the sum of the boiler back pres- In Tab. N the calibrations of the air and gas servomotors at the sure at the maximum burnt power and the pressure drop ignition point for each model are summarized according to the read on the diagrams of Fig.

  • Page 35: Maximum Gas Pressure Switch

    Start-up, calibration and operation of the burner 5.5.2 Maximum gas pressure switch Adjust the maximum gas pressure switch (Fig. 27) after making all other burner adjustments with the maximum gas pressure switch set to the end of the scale. To calibrate the maximum gas pressure switch, open the tap and then connect a pressure gauge to its pressure test point.

  • Page 36: Operation

    Start-up, calibration and operation of the burner Operation Once the start-up cycle is completed, the servomotor command  The burner stops when the heat request is less than the heat moves on to the thermostat/pressure switch TR that controls the supplied by the burner at MIN output.

  • Page 37: Description Of O2 Trim Control (Optional)

    Start-up, calibration and operation of the burner 5.11 Description of O trim control (optional) A special feature of the LMV52… is control of the residual O content to increase the boiler’s efficiency. The LMV52… uses a QGO20…, an external PLL52…, and the standard components of the LMV51…...

  • Page 38: 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 oper- safety, yield and duration of the burner. ations: It allows you to reduce consumption and polluting emissions and to keep the product in a reliable state over time.

  • Page 39: Safety Components

    Maintenance 6.2.5 Measuring the ionisation current Gas filter Change the gas filter when it is dirty. The burner is fitted with an ionisation system to check that a flame is present. Electric current to the flame sensor The minimum current for control box operation is 6 µA. Clean the ionization probe from any dust.

  • Page 40: Checking The Position Of The Rpm Sensor

    Maintenance Checking the position of the rpm sensor To calibrate the rpm sensor 6)(Fig. 33), proceed as follows:  remove the cover 1) unscrewing the screws 2);  unscrew or screw the nuts 3) - 5) and the rpm detection disc 4) so that its distance from the rpm sensor 6) is about 2 mm;...

  • Page 41: Appendix - Accessories

    Inverter Output Burner Motor Output (kW) Code voltage (kW) RS 310/EV O2 ULX 400V 20163074 RS 510/EV O2 ULX 400V 20163096 The use of inverters other than those indicated by the manufacturer may lead to burner failure and, in extreme cases, a potential risk of harm to people and damage to property.
  • Page 42 Appendix - Accessories Gas trains in compliance with EN 676 Please refer to manual. The installer is responsible for the addition of any safety device not foreseen in this manual. WARNING 20205511...

  • Page 43: B Appendix - Electrical Panel Layout

    Appendix - Electrical panel layout Appendix - Electrical panel layout Index of layouts Indication of references Single-wire output layout Functional layout Functional layout LMV 52... Functional layout LMV 52... Functional layout LMV 52... Functional layout LMV 52... Functional layout LMV 52... Functional layout LMV 52...
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  • Page 57 Appendix - Electrical panel layout Wiring layout key Electronic cam O2 module PLL.. type Display and calibration unit Output probe in current Device with output undercurrent, for modifying re- mote setpoint Load indicator Input in current DC 4...20 mA Pressure probe Pressure probe Probe Pt100, 3 wires Probe Pt100, 3 wires...
  • Page 60 RIELLO S.p.A. I-37045 Legnago (VR) Tel.: +39.0442.630111 http:// www.riello.it http:// www.riello.com Subject to modifications...

This manual is also suitable for:

Rs 510/ev o2 ulxS045t2S046t2

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