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 6.5.3 Maximum output ................................26 6.5.4 Minimum output .................................27 6.5.5 Intermediate outputs ..............................27 Pressure switch adjustment ............................28 6.6.1 Air pressure switch..............................28 6.6.2 Maximum gas pressure switch...........................28 6.6.3 Minimum gas pressure switch............................28 6.6.4 Flame presence check ...............................29 6.6.5 Check Mode ................................29 Burner operation ................................30 6.7.1 Burner start-up ................................30...
The quality is guaranteed by a quality and management system certified in accordance with ISO 9001:2015. Legnago, 21.04.2018 General Manager Research and Development Director RIELLO S.p.A. - Burners Department RIELLO S.p.A. - Burners Department Eng. U. Ferretti Eng. F. Comencini...
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 2.1.4 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;...
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 safety rules and envisaging all the potential danger situations.
See "Combustion head pre-calibration” on page 18 The MINIMUM OUTPUT must not be lower than the minimum limit of the diagram: RS 70/M = 150 kW RS 100/M = 150 kW RS 130/M = 254 KW RS 70/M 20063160 Thermal power - kW...
Technical description of the burner Test boiler 4.9.1 Commercial boilers The burner/boiler combination does not pose any problems if the boiler is EC approved and its combustion chamber dimensions The burner/boiler combination does not pose any problems if the are similar to those indicated in the diagram (Fig. 3). boiler is EC approved and its combustion chamber dimensions If the burner must be combined with a boiler that has not been EC are similar to those indicated in the diagram (Fig.
Technical description of the burner 4.10 Burner description 20156624 Fig. 4 Combustion head 18 Flame stability disc Ignition electrode 19 Fan motor Screw for combustion head adjustment Maximum gas pressure switch There is one type of burner lockout may occur: Servomotor controlling the gas butterfly valve and the air damper, by means of a variable profile cam mechanism.
Technical description of the burner 4.11 Electrical panel description 20158354 Fig. 5 Plug-socket on ionisation probe cable installer) Sockets for electrical connection Air pressure switch (differential type) Motor contactor and thermal relay with reset button Ignition transformer Power switch for: Control box base automatic-manual-off operation 10 Filter to protect against radio disturbance...
Technical description of the burner 4.12 Control box RFGO-A22 Important notes To avoid accidents, material or environmental damage, observe the following instructions! The control box is a safety device! Avoid opening ATTENTION or modifying it, or forcing its operation. The Manufacturer cannot assume any responsibility for damage resulting from unauthorised work! ...
Technical description of the burner 4.13 Servomotor (SQN31...) Important notes Technical data To avoid accidents, material or environmental Operating voltage AC 220...240 V - 15% / +10% damage, observe the following instructions! AC 100...110 V - 15% / +10% Avoid opening, modifying forcing...
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.
Fig. 14. thermal insulation screen supplied with the burner. Provide an adequate lifting system. RS 70/M 275 - 325 M 12 RS 100/M 275 - 325 M 12 RS 130/M 275 - 325 M 12 Separate the combustion head from the rest of the burner (Fig.
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). 5.6.1 Combustion head pre-calibration For the RS 130/M model, check, at this point, whether the maximum output of the burner in the 2nd stage is within area A or in area B of the firing rate.
1-2 notches. Continuing on the example on page 22, we can see that a burner RS 100/M with a 900 kW output requires about 5.5 mbar of pressure in test point 6)(Fig. 15).
Installation Gas supply Explosion danger due to fuel leaks in the MBC “threaded” 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.
Installation 5.9.2 Gas train 5.9.4 Gas pressure Type-approved in accordance with EN 676 and supplied Tab. H indicates the pressure drops of the combustion head and separately from the burner. gas butterfly valve depending on the burner operating output. To select the correct gas train model, refer to the manual "Burner- 1 p (mbar) gas train combination"...
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8.5 - 3.0 5.5 mbar A pressure of 5.5 mbar, column 1, corresponds in table RS 100/M to a 2nd stage output of 900 kW. This value serves as a rough guide; the effective output must be measured at the gas meter.
Installation 5.10 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.
Installation 5.11 Calibration of the thermal relay The thermal relay (Fig. 24) serves to avoid damage to the motor due to an excessive absorption increase or if a phase is missing. For calibration 2), refer to the table indicated in the electrical layout (electrical wiring by the installer).
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 Before starting up the burner, refer to section by qualified personnel, as indicated in this manual "Safety test - with no gas supply”...
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 in Fig. 28 to position “MAN”. As soon as burner starts, check the fan rotation direction through the flame inspection window.
Start-up, calibration and operation of the burner Air adjustment Bring the output to 800 kW using the screws 5) of the mechanical cam (Fig. 29 on page 27) and check the emissions. The air is adjusted by varying the angle of cam I) (Fig. 29 on page 27) and by using the selector 2)(Fig.
Start-up, calibration and operation of the burner Pressure switch adjustment 6.6.1 Air pressure switch Adjust the air pressure switch after performing 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 relevant knob clockwise until the burner locks out.
Start-up, calibration and operation of the burner 6.6.4 Flame presence check The burner is fitted with an ionisation system to check that a flame is present. The minimum current required for the control box operation is 6 A. The burner supplies a significantly higher current value, so that no check is usually needed.
Start-up, calibration and operation of the burner Burner operation 6.7.1 Burner start-up • The burner locks out when the heat request is less than the heat supplied by the burner at MIN output, (section G-H). The • Control remote control TL closes. TL remote control opens, the servomotor returns to angle 0°...
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.
Maintenance Combustion head 7.2.4 Safety components Open the burner and make sure that all components of the The safety components should be replaced at the end of their life combustion head are in good condition, not deformed by the cycle indicated in the following table. high temperatures, free of impurities from the surroundings The specified life cycles do not refer to the and correctly positioned.
Maintenance Opening the burner Disconnect the electrical supply from the burner by means of the system main switch. DANGER Close the fuel shut-off valve. DANGER 20156634 Wait for the components in contact with heat sources to cool down completely. Loosen the screws 1) and remove the cover 2)(Fig. 38); ...
LED indicator and special function LED indicator and special function Description of LED lamps It turns on when the fan motor is powered (T6) and blinks when RUN/CHECK switch is set to “CHECK” during damper movement phases, PTFI AND MTFI. S9740 It blinks when the air damper is moving towards the maximum opening position until the Damper...
LED indicator and special function LED lamps: burner operating status OPERATING STATUSES INDICATED BY LEDS DURING NORMAL OPERATION AND CHECK MODE Operation Damper Damper Modulation Ignition Flame Status LED ● = ON open closed Icon S9740 S9741 S9742 S9743 S9744 S9745 S9746 Power OFF/ON...
Problems - Causes - Remedies signalled by LED indicators Problems - Causes - Remedies signalled by LED indicators When an emergency stop occurs, the control device LEDs Thermal unit’s operation, maintenance and indicate the cause of the stop. troubleshooting interventions must be carried out The terminal T3 is not powered.
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Problems - Causes - Remedies signalled by LED indicators Error / RFGO LED lock-out codes Faults LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 Operation Open Closed Auto Ignition Flame Status LED ● = ON damper damper Icon...
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Problems - Causes - Remedies signalled by LED indicators Faults LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 Off-specification mains voltage ● ● ● ● ● UV: Internal fault ● ● Supervisor processor fault ●...
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Problems - Causes - Remedies signalled by LED indicators Fault explanation Faults Cause Solution Post-diagnostics fault Initial power diagnostics fault Check T12, T13 and T14 Make sure that the status of inlets and outlets is correct upon ignition Local reset The user started the manual reset or the Check T21 inlet or reset for normal reset switch is faulty...
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Problems - Causes - Remedies signalled by LED indicators Faults Cause Solution Not used Internal processor timeout Internal fault Replace the control device Internal processor timeout Internal fault Replace the control device Combustion air check timeout The system could not perform verification Check the wiring or the air pressure switch tests of the combustion air during the burner sequence...
RS 70/M 3010117 presence of an INVERTER, or in applications where the length of thermostat connections exceeds 20 metres, a protection kit is RS 100/M 3010118 available as an interface between the control box and the burner. RS 130/M 3010119...
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Appendix - Accessories Output regulator kit for modulating operation With modulating operation, the burner continuously adjusts its The parts to be ordered are two: output to the heat request, thereby ensuring a great stability of – output regulator to be installed to the burner; the controlled parameter: temperature or pressure.
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Appendix - Electrical panel layout Wiring layout key Control box Filter to protect against radio disturbance RWF50 output power regulator Current input DC 4...20 mA Current input DC 4...20 mA for remote setpoint modification Pressure probe Pressure probe Remote setpoint potentiometer Thermocouple probe Probe Pt100, 2 wires Probe Pt100, 3 wires...
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