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 Servomotor adjustment ..............................25 Adjusting the burner ..............................26 6.6.1 Output upon ignition ..............................26 6.6.2 Output in 2nd stage..............................26 6.6.3 Output in 1st stage ..............................27 6.6.4 Intermediate outputs ..............................27 6.6.5 Air pressure switch..............................28 6.6.6 Minimum gas pressure switch............................28 Operation sequence of the burner ..........................29 6.7.1 Burner start-up ................................29 6.7.2...
The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001. Legnago, 10.10.2013 Executive Director Research & Development Director RIELLO S.p.A. - Burner Department RIELLO S.p.A. - Burner Department Mr. G. Conticini Mr. 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.
2E(R)B LU - PL Tab. B Technical data Model RS 150 Code 20044636 - 20044637 20051309 - 20051314 Power min - max 300/900 - 1850 Delivery Fuels Natural gas: G20 (methane gas) - G21 - G22 - G23 - G25 Gas pressure at max.
Technical description of the burner Maximum dimensions The maximum dimensions of the burner are given in Fig. 1. The dimensions of the open burner are indicated by position I. Bear in mind that inspection of the combustion head requires the burner to be opened and the rear part drawn back on the slide bars.
Technical description of the burner Trace a vertical line from point A (Fig. 3), and find the maxi- mum pressure " H2" of the firing rate. H1r = H1 x Multiply “H2” by “F” to obtain the maximum lowered pres- sure “H3”...
Technical description of the burner Burner description Combustion head Ignition electrode Screw for combustion head adjustment Pipe coupling Servomotor controlling the gas butterfly valve and the air damper valve (by means of an adjustable profile cam mech- anism). When the burner is not operating the air gate valve is fully closed in order to reduce heat dispersion from the boiler due to the flue draught which draws air from the fan suction inlet.
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 Servomotor (SQN31.22...) 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 Operating position The burner is designed to operate only in Any other position could compromise the cor- positions 1 , 2 , 3 and 4 (Fig. 9). rect operation of the appliance. Installation 1 is preferable, as it is the only ...
Installation Securing the burner to the boiler remove screws 2) from the two slide bars 5); remove the 2) screws 4) and pull the burner back on slide Provide an adequate lifting system. bars 5) by about 100mm; ...
Installation Positioning the probe - electrode Do not rotate the probe: leave it as in Fig. 13 since When positioning the probe and electrode, re- if it is located too close to the ignition electrode, spect the dimensions shown in Fig. 13. the control box amplifier may be damaged.
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Installation Once the combustion head adjustment is completed: When fitting the burner on the two slide bars, it is reassemble the burner on the guides 3), about 100mm from advisable to gently draw out the high voltage ca- the pipe coupling 4) - burner in the position shown in Fig. 11; ble and the flame detection probe cable until they ...
Installation Gas feeding Explosion danger due to fuel leaks in the pres- MBC “threaded” ence of a flammable source. Precautions: avoid knocking, attrition, sparks and heat. Make sure the fuel interception tap is closed be- fore 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 Approved according to standard EN 676 and provided separately from the burner. To select the correct gas train model, refer to the supplied "Burn- er-gas train combination" manual. 5.9.3 Gas train installation Disconnect the electrical power using the main switch.
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Installation Example with natural gas G20: Operation at maximum modulating output Gas pressure at test point 1)(Fig. 22) = 11.7 mbar Pressure in combustion chamber 3 mbar 11.7 - 3 8.7 mbar A pressure of 8.7 mbar (column 1) corresponds in Tab. J to an output of 1300 kW.
Installation 5.10 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.
Installation 5.11 Calibration of the thermal relay The thermal relay serves to avoid damage to the motor due to an excessive absorption increase or if a phase is missing. For the calibration, refer to Tab. K. Model Thermal relay adjustment RS 150 230V 10.5 A...
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 Burner start-up Feed electricity to the burner via the disconnecting switch on the boiler panel. Close the remote controls and turn: Burner OFF 1st stage – switch 1)(Fig. 27) to the “Burner ON” position; –...
Start-up, calibration and operation of the burner Adjusting the burner 6.6.2 Output in 2nd stage The optimum adjustment of the burner requires an analysis of flue gases at the boiler outlet. MAX output must be selected within the firing rate range shown Adjust in sequence: on page 9.
Start-up, calibration and operation of the burner 6.6.3 Output in 1st stage Min output must be selected within the firing rate range shown on page 9. Turn switch 2)(Fig. 27, page 25) to the 1st stage position: the ser- vomotor 1) will close the air damper and, at the same time, will also close the gas butterfly valve to 15°...
Start-up, calibration and operation of the burner 6.6.5 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. 32). With the burner operating in 1st stage, insert a combustion analyser in the flue and slowly close the suction inlet of the fan (e.g.
Start-up, calibration and operation of the burner Operation sequence of the burner 6.7.1 Burner start-up NORMAL IGNITION Control remote control TL closes (Fig. 34). (n° = seconds from instant 0) Servomotor starts: turn to the right, as far as the angle set on the cam with the orange lever.
Start-up, calibration and operation of the burner 6.7.4 Burner flame goes out during operation If the flame accidentally goes out during operation, the burner will go into lockout within 1s. Stopping of the burner The burner can be stopped by: Carry out all the operations, then reassemble the ...
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 Boiler Excess air Clean the boiler as indicated in its accompanying instructions in EN 676 Max. output. Max. output. order to maintain all the original combustion characteristics in- 1.2 1.3 tact, especially the flue gas temperature and combustion cham- Theoretical % Calibration ber pressure.
Faults - Possible causes - Solutions Faults - Possible causes - Solutions Burner start-up cycle diagnostics During start-up, indication is according to the colour code table Sequences Colour code (Tab. N). Pre-purging Key (Tab. N) Ignition phase Operation, flame OK Yellow Operation with weak flame signal Green...
Faults - Possible causes - Solutions Software diagnostics Once the button is released, the red LED will flash intermit- Gives an analysis of the life of the burner, through optical connec- tions with a PC showing the working hours, number and types of tently with a higher frequency: only now can the optical link lockout, control box serial number etc.
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Faults - Possible causes - Solutions Signal Problem Possible cause Recommended remedy 7 blinks The burner goes into The operation solenoid lets little gas through Increase lockout immediately fol- Ionisation probe incorrectly adjusted Adjust lowing the appearance Insufficient ionisation (less than 5 µA) Check probe position of the flame Earth probe...
Faults - Possible causes - Solutions Normal operation / flame detection time The control box has a further function to guarantee the correct After releasing the button, the GREEN LED starts flashing, as burner operation (signal: GREEN LED permanently on). shown in the diagram below.
Appendix - Electrical panel layout Appendix - Electrical panel layout Electrical system adjusted in factory 20056515 CMV Motor contactor Control box (Landis RMG88.62A2) Filter to protect against radio disturbance Relay Switch: burner operation / stop Switch: 1st - 2nd stage Burner terminal strip Fan motor Air pressure switch...
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Appendix - Electrical panel layout Electrical connection of burner without gas valve seal control 20055770 Electrical connection of burner with VPS gas valve seal control 20055774 The leak detection control takes place immediate- Burner manual stop switch ly before each burner start-up. Plug for leak detection control Burner terminal strip WARNING...
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