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Installation, use and maintenance instructions Heavy oil burner Three stage operation CODE MODEL TYPE 3437785 P 200 T/N 467 T80 2915832 (5) - 01/2023...
Contents Declarations....................................3 Information and general warnings............................4 Information about the instruction manual ........................4 Guarantee and responsibility............................5 Safety and prevention................................6 Introduction.................................. 6 Personnel training ............................... 6 Technical description of the burner ............................7 Burner designation ..............................7 Models available................................
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Contents Opening and closing the burner ..........................28 Faults - Possible causes - Solutions............................29 Appendix - Accessories ................................31 Appendix - Electrical panel layout............................32 2915832...
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 267 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 sys-...
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.
Technical description of the burner Technical description of the burner Burner designation Series: PRESS Size : 140... 450 Operation: Two-stage N Two-stage with separate pump N/ECO Three-stage T/N Three-stage with separate pump T/N ECO Modulating with separate pump P/N ECO Modulating P/N Modulating with air/steam atomisation P/NA C01 or...
Technical description of the burner Technical description of the burner Technical data MODEL P 200 T/N Output 515 - 2280 Delivery kg/h 45 - 200 Fuel Heavy oil - max viscosity at 50 °C 50 (7°E) up at 50°C with kit 500 (65°E) at 50°C Operation •...
Technical description of the burner Operation and efficiency of the burner Thermal power - Output Minimum Maximum STAGE kg/h kg/h nozzle: ignition phase 1516 nozzle: intermediate phase 1140 2279 nozzle: operation phase Thermal power - Output Minimum Maximum STAGE kg/h kg/h nozzle: ignition phase...
Technical description of the burner Overall dimensions The dimensions of the burner are given in Fig. 1. It is possible with a spacer, upon request. 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 Firing rates During operation, burner output varies within a minimum and a The FIRING RATE was obtained with an ambient maximum limit (Fig. 2). temperature of 20°C and a barometric pressure of 1000 mbar (approx. 100m above sea level), with the combustion head adjusted as shown on page ATTENTION S10345...
Technical description of the burner Burner description D2730 Fig. 4 Suction line Return line Air shutter opening motor Pump pressure adjustment screw Manometer plug (G 1/8) Vacuometer plug (G 1/2) Reset push-button of the motor overload relay Electric board Cable clamps 10 Control box reset push-button and lock-out lamp 11 Adjustment thermostat 12 Regulating bush for combustion head...
The control box RMO88... is a safety device! ATTENTION Avoid opening or modifying it, or forcing its opera- tion. Riello S.p.A. cannot assume any responsibil- ity for damage resulting from unauthorised interventions! 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 Operating position The burner is designed to work only in positions 1 and 4 (Fig. 7). Installation 1 is preferable, as it is the only one that allows the maintenance operations ATTENTION as described in this manual. ...
Installation Securing the burner to the boiler Provide an adequate lifting system. Be careful as some drops of fuel may leak out D2590 during this phase. To separate the burner from the cast iron blast tube, proceed as follows: remove the cover 1)(Fig. 9), the split pin and pin 2), the nuts 3) and the screws 4).
267 standard. In order to guarantee that emissions do not vary, First of all state the maximum output required with all three recommended and/or alternative nozzles specified by Riello in nozzles in operation. the Instruction and warning booklet should be used.
Installation Fuel oil supply 6.8.1 Ring supply line Explosion danger due to fuel leaks in the For heavy oil with viscosity up to 50°E/50°C. presence of a flammable source. The oil could easily flow through the pipes if those are Precautions: avoid knocking, attrition, sparks and properly seized, protected and heated (by electricity, steam heat.
Installation 6.8.2 Gravity supply line L meters meters ø 1 ” ø 1 ” Make sure that the hoses to the pump supply and return line are installed correctly. CAUTION Install the hoses where they cannot be stepped on or come into contact with hot surfaces of the boiler.
Installation 6.10 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.
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, by qualified personnel, as indicated in this manual command and safety devices.
Start-up, calibration and operation of the burner Air shutters adjustments The adjustment of the air shutters shall be set each time, with ref- erence to the nozzles deliveries and the combustion chamber pressurization. Fig. 15 shows the positioning of the air shutters. Fig.
Start-up, calibration and operation of the burner Atomising temperature setting 7.5.1 Thermostat for adjustment - maximum value - S10349 minimum value Electronic adjustment thermostat by means of information re- layed from a PT100 probe immersed in the oil in the delivery manifold, the thermostat adjusts spray temperature.
Start-up, calibration and operation of the burner Operation sequence of the burner 7.6.1 Burner start-up program Normal Lock-out due to no ignition Thermostat Motor Ignition transformer Pre-purge flame valve flame valve flame valve Lock-out lamp D2848 Fig. 20 ) Factory setting: 20 s. D3211 This time determines the heavy oil temperature at ignition.
Burners start-up cycle diagnostics Burners start-up cycle diagnostics Burner start-up cycle diagnostics During start-up, indication is according to the colour code table 8.1.1 Resetting of control box and diagnostics use (Tab. G). The control box features a diagnostics function through which any causes of malfunctioning are easily identified (indicator: RED Sequences Colour code...
Burners start-up cycle diagnostics Final checks (with burner operating) the burner should start and then go into lockout after about Block out the UV sensor and switch on the control 10 seconds from the opening of the 1st stage working devices: valve.
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 9.2.3 Safety components The safety components should be replaced at the end of their life cycle indicated in the following table. The specified life cycles do not refer to the warranty terms indicated in the delivery or payment conditions. Safety Life cycle component...
Faults - Possible causes - Solutions Faults - Possible causes - Solutions In the event the burner stops, in order to prevent In the event there are further lockouts or faults any damage to the installation, do not unblock the with the burner, the maintenance interventions burner more than twice in a row.
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Faults - Possible causes - Solutions 4 x blinks Flame sensor short-circuit Replace the sensor The burner turns on and Light is getting in or else the then goes into lockout Eliminate the light or replace the control box flame is simulated 7 x blinks Poorly adjusted head Adjust...
Appendix - Electrical panel layout Appendix - Electrical panel layout Index of layouts Reference indication Internal wiring diagram (carried out in factory) Wiring connectors to the terminal board (carried out by the installer) Reference indication / 1 . A 1 Sheet no.