Index 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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Index Gas pressure switch ..............................24 Air pressure switch..............................24 Combustion adjustment .............................24 Maintenance ....................................25 Notes on safety for the maintenance .........................25 Maintenance programme ............................25 7.2.1 Maintenance frequency..............................25 7.2.2 Safety test - with gas ball valve closed ........................25 7.2.3 Checking and cleaning...............................25 7.2.4 Safety components ..............................26 Opening the burner ..............................26...
Declarations Declarations Declaration of Conformity in accordance with ISO / IEC 17050-1 These products are in compliance with the following Technical Standards: • EN 12100 • EN 676 According to the European Directives: 2006/42/CE Machine Directive 2014/35/UE Low Voltage Directive EMC 2014/30/UE Electromagnetic Compatibility The quality is guaranteed by a quality and management system certified in accordance with ISO 9001:2015.
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 Background 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.
Technical description of the burner Technical description of the burner Burner designation Standard Emission Range: Low NOx Fuel: Natural gas Size Variations: Two-stage Light industrial process Progressive two-stage or modulating Head : Standard head Extended head Electrical power 1/230/50 1/230V/50Hz of the system : 1/220/60 1/220V/60Hz...
Technical description of the burner Technical data Model Thermal power 160 ÷ 330 Mcal/h 13.76 - 28.38 NCV 8 12 kWh/m – 7.000 10.340 kcal/m Fuel Pressure: min. 20 mbar – max. 100 mbar Operation Intermittent (FS1) Boilers: water and diathermic oil Ambient temperature °C 0 - 40...
Technical description of the burner Maximum dimensions The maximum dimensions of the flange and burner are given in Fig. 1. S9702 Fig. 1 Model ø L 278 300 225 203 Tab. D Preparing the boiler 4.6.1 Boring the boiler plate Pierce the closing plate of the combustion chamber, as in Fig.
Technical description of the burner Firing rate The burner output is chosen from within the diagram area (Fig. 3). The firing rate value (Fig. 3) has been obtained considering an ambient temperature of 20 °C, an atmospheric pressure of 1013 mbar (approx. 0 m a.s.l.), and with the combustion head adjusted as WARNING shown on page 18.
Technical description of the burner Burner description D10158 Fig. 4 Air pressure switch Pressure test point 6 pole socket for gas train Flange with insulating gasket Control box Air damper adjustment assembly Reset button with lock-out signal Servomotor Head assembly support 10 Motor 4.10 Burner equipment...
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, S9084 assistance, etc.) must be carried out by qualified personnel.
Technical description of the burner 4.12 Air damper opener 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 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.
Installation Preliminary checks Control of the supply The figure of the label (Fig. 7) is indicative. After removing all the packaging, check the integ- Some of the data may be arranged in a different rity of the contents. position. WARNING In the event of doubt, do not use the burner;...
Installation Securing the burner to the boiler Provide an adequate lifting system of the burner. To install the burner on the boiler, do the following: if necessary, widen the insulating gasket holes (Fig. 9), tak- ing care not to damage them. D5012 The burner can be fixed with the variable position (A) as shown Fig.
Installation Combustion head adjustment The combustion head leaves the factory set for the minimum output. The ignition should occur at a low output and not higher than 120 kW. In order to measure the ignition output: disconnect the connector on the ionisation probe cable; the burner comes on and goes into lockout after the safety time (3s).
Installation Positioning the probe - electrode Make sure that the plate 3)(Fig. 14) is always inserted in the flattening of the electrode 1). Rest the probe insulator 4) against the air diffuser 2). Respect the positions shown in Tab. I. WARNING Model A (mm)
Installation 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.
Read on the right, column 1, the pressure at the socket M2)(Fig. 15). Add this value to the estimated pressure in combustion chamber. Example with natural gas G 20 for RS5: Operating at the desired maximum output: 330 kW 5.9.4 Gas pressure...
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 Operating program Normal operation Lock-out, due to light failure Thermostat Motor Ignition transformer Valve Flame Lock-out 20198835 Fig. 17 Lock-out is indicated by a lamp on the control box (Fig. 4). In the event the burner stops, in order to prevent any damage to the installation, do not unblock the burner more than twice in a row.
Installation 5.12.2 Control sequence in case of failure The flame control box can be unlocked immediately. The lockout status is maintained even in the event of a power If a lockout occurs, the oil valve outputs, the fan motor and the failure.
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.
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.
Maintenance Gas distributor Combustion Check at regular intervals that the holes of the gas head are not If the combustion values measured before starting maintenance do not comply with applicable legislation or do not indicate effi- obstructed. If they are, clean them with a pointed tool as shown in Fig.
Faults - Possible causes - Solutions Faults - Possible causes - Solutions Here below you can find some causes and the possible solutions In the event the burner stops, in order to prevent for some problems that could cause a failure to start or a bad any damage to the installation, do not unblock the working of the burner.
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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. S. 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 2 blinks Once the pre-purging The operation solenoid lets little gas through Increase phase and safety time The solenoid valve does not open Replace it have passed, the burner Gas pressure too low Increase pressure at governor goes into lockout with-...
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Faults - Possible causes - Solutions SIGNAL PROBLEM POSSIBLE CAUSE RECOMMENDED REMEDY No blink The burner does not No electricity supply Close all switches and check connec- start tions The limit or safety thermostat is open Adjust or replace Line fuse blocked Replace Defective control box Replace...
Appendix - Accessories Appendix - Accessories Extended head kit Standard length Extended head length Burner Code (mm) (mm) 203 - 225 357 - 372 3001016 LPG kit Kit code for standard head Burner Code * and extended head 3001011 3002737 * Kit for LPG with quantity of butane over 30%.
Electrical panel layout Electrical panel layout Index of layouts Indication of references Functional layout Electrical wiring that is the responsibility of the installer Indication of references / 1 . A 1 Sheet no. Co-ordinates 20198379...
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