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2902587 (6) - 06/2014

Installation, use and maintenance instructions

Kerosene burners

One stage operation

CODE

MODEL

TYPE

3748950

RDB3 CF

489T50

3748850

RDB4 CF

488T50

Summary of Contents for RDB3 CF 489T50

Page 1: ...2902587 6 06 2014 Installation use and maintenance instructions Kerosene burners One stage operation CODE MODEL TYPE 3748950 RDB3 CF 489T50 3748850 RDB4 CF 488T50 ...

Page 2: ...Original instructions ...

Page 3: ... 10 5 1 Notes on safety for the installation 10 5 2 Handling 10 5 3 Preliminary checks 10 5 4 Installer Servicer notes for the use of Gas oil with Bio blends up to 30 where gas oil use is permitted by the appliance Manufacturer 11 5 5 Working position 11 5 6 Boiler fixing 12 5 7 Burner assembly 13 6 Hydraulic systems 14 6 1 Fuel supply 14 6 1 1 Pump 14 6 2 One pipe system 15 6 2 1 Priming pump 15 ...

Page 4: ...2587 2 GB Contents 9 Maintenance 23 9 1 Notes on safety for the maintenance 23 9 2 Maintenance programme 23 9 2 1 Maintenance frequency 23 9 2 2 Checking and cleaning 23 10 Faults Solutions 24 ...

Page 5: ...lowing Technical Standard EN 12100 EN 267 and according to the European Directives MD 2006 42 EC Machine Directive LVD 2006 95 EC Low Voltage Directive EMC 2004 108 EC Electromagnetic Compatibility The quality is guaranteed by a quality and management system certified in accordance with UNI EN ISO 9001 Legnago 10 10 2013 Executive Director RIELLO S p A Burner Department Research Development Direct...

Page 6: ...ivered to the user by the system manufacturer with the recommendation to keep it in the room where the heat generator is to be installed The instruction manual shows the serial number of the burner the address and telephone number of the nearest Assis tance Centre The system supplier must carefully inform the user about the use of the system any further tests that may be required before activating...

Page 7: ...ello war ranty is dependent upon the use of Riello genuine compo nents including the oil lines being used 3 Riello warranty does not cover defects arising from incor rect commissioning or servicing by non Riello employed service engineers and any issues impacting the burner arising from external site related issues 2 3 Guidance for the use of bio fuel blends up to 30 where gas oil use is permitted...

Page 8: ...nce applica tion and commissioned checking that all combustion param eters are as recommended in the appliance technical manual Riello recommends that the in line and burner oil pump filters are inspected and if required replaced at least every 4 months during burner use before the burner start up follow ing a long period of discontinue operation and even more frequently where contamination has oc...

Page 9: ... maintenance errors or to improper use 3 3 Basic safety rules Children or inexpert persons must not use the appliance Under no circumstances must the intake grids dissipation grids and ventilation vents in the installation room be cov ered up with cloths paper or any other material Unauthorised persons must not attempt to repair the appli ance It is dangerous to pull or twist the electric leads Cl...

Page 10: ...50 488 T50 Output Thermal power with air at 20 C 3 0 5 8 kg h 35 6 68 7 kW 4 7 9 5 kg h 55 7 113 kW Fuel Kerosene viscosity 1 6 6 mm2 s at 20 C Hi 11 97 kWh kg Gas oil viscosity 4 6 mm2 s at 20 C Hi 11 86 kWh kg Electrical supply Single phase 50Hz 230 V 30 Motor Run current 1 3 A 2750 rpm 288 rad s Capacitor 5 µF Ignition transformer Secondary 8 kV 16 mA Pump Kerosene maximum pressure 10 bar 145 p...

Page 11: ...red delivery and a horizontal line from the pressure in the combustion chamber The intersection of these two lines is the work point which must lie within the firing rates Fig 2 Burner Flange 167 A 253 30 11 204 D1844 83 83 268 163 4 5 4 5 189 168 140 106 Ø B 489T50 488T50 A 78 111 Ø B 88 105 WARNING The firing rate area values have been obtained considering a surrounding temperature of 20 C and a...

Page 12: ... for the burner can be highly dangerous if not carried out with the great est attention keep any unauthorised people at a distance check the integrity and suitableness of the available means of handling Check also that the area in which you are working is empty and that there is an adequate escape area i e a free safe area to which you can quick ly move if the burner should fall When handling keep...

Page 13: ...t the tank and a secondary 60 micron filter are used to protect the burner pump and nozzle from con tamination The burner hydraulic components and flexible oil lines must be suitable for bio fuel use check with Riello if in doubt Riello have carefully chosen the specification of the bio com patible components including the flexible oil lines to protect the pump safety value and nozzle The Riello w...

Page 14: ...Widen if necessary the insulating gasket holes 5 see Fig 7 Fix the flange 1 Fig 8 to the boiler door 4 using screws 2 and if necessary the nuts 3 interposing the insulating gas ket 5 1 Fig 6 E1660 WARNING The seal between burner and boiler must be airtight Fig 7 D5012 5 1 2 4 3 2 Fig 8 E1661 ...

Page 15: ... suction inlet BF Application In case of BF applications an optional snorkel and gasket are available replacing A with B This item can be supplied separately A Fig 9 E1556 CAUTION The temperature of the incoming air must not exceed 70 C WARNING For correct BF application the burner must be in stalled on an appropriate BF boiler B Fig 10 E1557 ...

Page 16: ...e gas oil containing bio diesel is in use it is recommended to avoid over oxygenation of the blended fuels Where at all possible avoid the use of two pipe systems where the circulated fuel is returned to the tank If this cannot be avoided make sure that the return pipe is normally below the surface of the fuel level within the storage tank See Fig 14 WARNING The suction plug 1 is made of plastic O...

Page 17: ...ht of the suction line I D interminal diameter of the oil pipes NOTE The Tab B and Tab C show the maximum approximate lengths for the supply line depending on the difference in level length and the diameter of the fuel conduit CAUTION You are advised to use additional filters on the fuel supply line Riello recommends a good quality fuel filter at the tank Fig 12 Fig 13 and a secondary filter 60 µ ...

Page 18: ...ax lenght of the suction line I D interminal diameter of the oil pipes NOTE The Tab D shows the maximum approximate lengths for the sup ply line depending on the difference in level length and the di ameter of the fuel conduit CAUTION You are advised to use additional filters on the fuel supply line Riello recommends a good quality fuel filter at the tank Fig 14 and a secondary filter 60 µ for gas...

Page 19: ... least once every 24 hours to enable the control box to perform checks of its own start up efficiency Normally the boiler s thermostat pressure switch ensures the stopping of the burner If this is not the case it is necessary to apply in series with IN a timer switch that turns off the burner at least once every twenty four hours Refer to the wiring diagrams The electrical safety of the device is ...

Page 20: ...al and phase over follow the diagram shown carefully and carry out a good earth connection The electrical wiring carried out by the installer must be in compliance with the rules in force in the country The section of the conductors must be at least 1mm2 Unless requested otherwise by local standards and legislation Fig 15 Capacitor L N 50Hz 230V Limit thermostat Valve D4240 CONTROL BOX Photoresist...

Page 21: ...egula tions of the laws in force WARNING Check the correct working of the adjustment com mand and safety devices WARNING Combustion air is drawn in from outside meaning there may be notable changes in temperature which can affect the percentage of CO2 You are advised to adjust CO2 in accordance with the graph featured Exemple outside air temperature 10 C adjust CO2 to 11 6 0 2 Outside air temperat...

Page 22: ...8 T50 Nozzle Pump pressure Burner output Combustion head adjustment Air damper adjustment GPH Angle bar kg h 4 Set point Set point GAS OIL 1 10 60 12 4 4 2 0 2 8 1 25 60 12 5 0 2 5 3 4 1 35 60 12 5 4 2 5 3 7 1 50 60 12 6 0 3 0 4 3 1 65 60 12 6 6 3 0 5 0 1 75 60 12 7 0 3 5 5 5 2 00 60 12 8 0 4 0 7 5 2 25 60 12 9 0 5 0 8 3 KEROSENE 1 65 60 7 4 65 2 0 2 8 1 75 60 8 5 23 2 5 3 1 2 00 60 8 5 98 2 5 3 9...

Page 23: ...efer to the combustion chamber with zero depression This regulation is purely indica tive Each installation however has its own unpredictable working conditions actual nozzle output positive or negative pressure in the combustion chamber the need of excess air etc All these conditions may require a different air damper setting 8 7 Electrodes setting Before removing or assembling the nozzle loosen ...

Page 24: ...ketch on the left the combustion head is set for an output of 1 50 GPH at 12 bar for gas oil or 2 25 GPH at 8 bar for kerosene The shutter is level with set point 3 as required by the schedule at page 19 Combustion head settings indicated in the schedule are valid for most cases The setting of the fan output according to the installation should normally be done only through the air damper 8 9 Burn...

Page 25: ...ng Hoses Check periodically the flexible pipes conditions They have to be replaced at least every 2 years In case of use of gas oil and bio fuel blends it is strongly rec ommended to inspect even more frequently the hoses and replace them where contamination has occurred Check to make sure that the hoses are still in good condi tion Fuel tank If water or contamination is present within the fuel ta...

Page 26: ... safety thermostat limit is not lock out The photoresistance sees false light Eliminate the light The connections in the control box are wrongly inserted Check and connect completely all the plugs Burner runs normally in the prepurge and ignition cycle and locks out after 5 sec onds ca The photoresistance is dirty Clean it The photoresistance is defective Change it Flame moves away or fails Check ...

Page 27: ......

Page 28: ...Subject to modifications RIELLO S p A I 37045 Legnago VR Tel 39 0442 630111 http www riello it http www riello com ...

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