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Installation, use and maintenance instructions Forced draught gas burners Two stage operation CODE MODEL TYPE 3759104 - 3759105 RIELLO 40 FS20D 591M 20063680 (1) - 03/2013...
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Translation of the original instructions...
Contents Declarations....................................3 Information and general warnings............................4 Information about the instruction manual ........................4 2.1.1 Introduction.................................. 4 2.1.2 General dangers................................4 2.1.3 Other symbols ................................4 2.1.4 Delivery of the system and the instruction manual...................... 5 Guarantee and responsibility............................5 Safety and prevention................................
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Contents 7.2.1 Maintenance frequency..............................23 7.2.2 Checking and cleaning...............................23 Opening the burner ..............................24 Faults - Possible causes - Solutions............................25 Tracing the causes of the malfunctioning ........................25 8.1.1 Control box reset................................25 8.1.2 Visual diagnostics ..............................25 8.1.3 Software diagnostics ..............................25 Appendix - Accessories ................................29 20063680...
The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001. Legnago, 01.03.2013 Operating Manager Research and Development Director RIELLO S.p.A. - Burners Department RIELLO S.p.A. - Burners Department Ing. I. Zinna Ing. R. Cattaneo...
Information and general warnings Information and general warnings Information about the instruction manual 2.1.1 Introduction WARNING: MOVING PARTS The instruction manual supplied with the burner: This symbol indicates that you must keep limbs is an integral and essential part of the product and must not away from moving mechanical parts;...
Information and general warnings The system supplier must carefully inform the user about: 2.1.4 Delivery of the system and the instruction – 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;...
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.
BASIC DESIGNATION EXTENDED DESIGNATION Models available Designation Voltage Code RIELLO 40 FS20D 1/230/50 3759104 - 3759105 Burner categories - Countries of destination Country of destination Gas category SE - FI - AT - GR - DK - ES - GB - IT - IE - PT - IS - CH - NO...
Technical description of the burner Technical data Model RIELLO 40 FS20D Type 591 M 58/81 220 Heat output (Hi) min - max 50,000/70,000 189,000 kcal/h NCV 8 12 kWh/m – 7,000 10,340 kcal/m Fuel Family 2 Pressure: min. 24 mbar – max. 360 mbar...
Technical description of the burner Firing rate The burner output is chosen from within the diagram area The firing rate value (Fig. 2) has been obtained (Fig. 2). considering an ambient temperature of 20°C, an atmospheric pressure of 1013 mbar (approx. 0m above sea level), and with the combustion head WARNING adjusted as shown on page 16.
Technical description of the burner Burner description 20065536 Fig. 4 Air dampers 13 Pressure test point (+) Damper fixing screws 14 Combustion head Pressure test point (-) 15 Electrode-probe Cover fixing screw 16 Gas train elbow Air pressure switch 17 Cable clamp Motor 18 Grommet Lock-out signal with reset button...
The control box is a safety device! Avoid opening WARNING or modifying it, or forcing its operation. Riello S.p.A. cannot assume any responsibility for dam- age resulting from unauthorised interventions! All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel.
Technical description of the burner 4.11 Air damper servomotor Warnings To avoid accidents, material or environmental damage, observe the following instructions! Avoid opening, modifying or forcing the actua- WARNING tors. All interventions (assembly and installation operations, assistance, etc.) must be carried out by qualified personnel. ...
Installation Installation Notes on safety for the installation After carefully cleaning all around the area where the burner will The installation of the burner must be carried out be installed, and arranging the correct lighting of the environ- by qualified personnel, as indicated in this manual ment, proceed with the installation operations.
Installation Preliminary checks 5.4.1 Control of the supply A burner label that has been tampered with, re- moved or is missing, along with anything else that After removing all the packaging, check the integ- prevents the definite identification of the burner rity of the contents.
Installation Securing the burner to the boiler Separate the combustion head assembly from the burner Provide an adequate lifting system of the burner. body by removing nut 1) and removing the group A)(Fig. 10). Fix the group B)(Fig. 10) to the boiler plate 2), inserting the supplied insulating gasket 3).
Installation Combustion head adjustment To adjust, proceed as follows: loosen the screw A)(Fig. 12), move the elbow B) so that the rear plate of the coupling (C) coincides with the set point; tighten the screw A). Example: S7015 The burner is installed in a 155 kW boiler.
Installation To adjust the burner output of the 1° and 2° stage, Micrometric screws respect the following recommendations: – the burner output ration between the 1° and 2° stage should be maximum 1 : 2, and if this ra- WARNING tio is exceeded the valve seal control will have to be used.
Installation Supplied separately for its adjustment, see the enclosed instruc- 5.10.2 Gas train tions. Approved according to standard EN 676 and provided separately The train-burner combination is indicated in Tab. E. from the burner. Connections Code Model Gas train Burner Natural gas ...
Installation 5.12 Electrical wiring 5.12.1 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.
Installation 5.12.4 Standard wiring diagram RMG88.62C2 20065533 Fig. 20 Key (Fig. 20) 5.12.5 Electrical wiring with valve seal control Air damper servomotor (DUNGS VPS 504) Motor capacitor Ionisation probe connector Ignition electrode Filter Fan motor Air pressure switch Min. gas pressure switch Lamp block (230V - 0.5A max.) Ionisation probe Ignition transformer...
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.
Start-up, calibration and operation of the burner Operation sequence of the burner Normal Lockout due to ignition failure Thermostat Motor Ignition transformer 1° stage valve 1° stage flame 2° stage valve 2° stage flame Lockout D4170 max. 3s max. 2s max.
Maintenance Maintenance Notes on safety for the maintenance The periodic maintenance is essential for the good operation, safety, yield and duration of the burner. Disconnect the electrical supply from the burner It allows you to reduce consumption and polluting emissions and by means of the main system switch.
Maintenance Opening the burner Disconnect the electrical supply from the burner by means of the main system switch. DANGER Turn off the fuel interception tap. DANGER Wait for the components in contact with heat sources to cool down completely. If maintenance of the combustion head is required, refer to the in- structions given in “Operating position”...
Faults - Possible causes - Solutions Faults - Possible causes - Solutions Tracing the causes of the malfunctioning The control box features a diagnostics function through which The control box generates a sequence of pulses (1 second any causes of malfunctioning are easily identified (indicator: RED apart), which is repeated at constant 3-second intervals.
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Faults - Possible causes - Solutions The sequence of led pulses issued by the control box identifies the possible types of malfunction, which are listed in the table Tab. L. Signal Possible cause No stable flame signal is detected within the safety time: 2 blinks –...
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Faults - Possible causes - Solutions Signal Problem Possible cause Recommended remedy 3 blinks The burner does not Air pressure switch in operating position Adjust or replace switch on, and the lock- out appears The burner starts and Air pressure switch inoperative due to insufficient air pressure: then goes into lockout Air pressure switch poorly adjusted Adjust or replace...
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Faults - Possible causes - Solutions Signal Problem Possible cause Recommended remedy The burner continues to The gas pressure in the gas mains lies very close Reduce the intervention pressure of repeat the start-up cy- to the value to which the gas pressure switch has the minimum gas pressure switch.