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Installation, use and maintenance instructions Kerosene and Gas oil burner Two stage operation CODE MODEL TYPE 3748418 RIELLO 40 G20D 484T1 2903397 (10) - 08/2022...
Contents Declaration....................................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 Guidance for the use of bio fuel blends up to 10% ......................
Information and general warnings Information and general warnings Information about the instruction manual 1.1.1 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;...
All components within the hydraulic circuit suitable for burner is integral and complete. bio fuel use and supplied by Riello will be identified as Bio com- patible. No warranty is given in relation to the use of components Failure to observe the information given in this which are not so identified with bio fuel blends.
1.3.1 Information and general instructions In no event shall Riello (and its subsidiaries) be liable for any in- To ensure consistency, the supplier of the fuel must be able to direct, incidental, special or consequential damages including,...
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.
Bio blend, it will be essential to use flexible oil lines suitable for bio fuel use. Screws and nuts for flange ..........No. 4 Please contact Riello for further information. WARNING Screw with two nuts for flange..........No. 1 Maintenance assembly............No. 1 4 pin plug................
Technical description of the burner Burner dimensions Flange Burner D5283 Fig. 2 Firing rate The MAXIMUM OUTPUT is chosen from within the diagram area The work point may be found by plotting a vertical line from the (Fig. 3). desired delivery and a horizontal line from the pressure in the combustion chamber.
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.
The burner hydraulic components and flexible oil lines must burner technical manual). be suitable for bio fuel use (check with Riello if in doubt). If a Bio blend is in use the installer must seek information Riello have carefully chosen the specification of the bio com-...
Installation Securing the burner to the boiler Put on the flange 1)(Fig. 6) the screw 2) and two nuts 3). It is necessary that the insulating gasket 5)(Fig. 9) is placed between the boiler door and the burner flange. If necessary, the insulating gasket can be modified as shown in Fig.
3) and then screw the re- WARNING Please contact Riello for further information. turn plug 2). It is strongly recommended a periodic check of the pump pressure operation (annually or better every six months, if the burner operation is contin- uous).
You are advised to use additional filters on the fuel supply line. Riello recommends a good quality fuel filter at the CAUTION tank (Fig. 11) and a secondary filter (60 for gas oil and 15 for kerosene) are used to protect the burner pump and nozzle from contamination.
Usually the tank is lower than the burner. You are advised to use additional filters on the fuel supply line. Riello recommends a good quality fuel filter at the CAUTION tank (Fig. 12 - Fig. 13) and a secondary filter (60 ...
Electrical system Electrical system Notes on safety for the electrical wiring The electrical wiring must be carried out with the electrical supply disconnected. Electrical wiring must be carried out by qualified personnel and in compliance with the regulations currently in force in the country of destination.
Electrical system Electrical wiring The burner is provided with a 7 pole socket for the direct electrical The section of the conductors must be at connection to the boiler’s plug (Fig. 14). least 1mm . (Unless requested otherwise by Should the boiler be without plug, it is then necessary: local standards and legislation).
Electrical system 230V ~ 50Hz Key of the wires color A - Brown B - White C - Blue D - Black E - Grey Main switch Fuse T6A stage thermostat Limit thermostat Safety thermostat 4 pin plug B5 T6 T7 T8 4 pole socket Remote lock-out lamp Burner-earth...
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 7.3.1 Nozzles recommended Gas oil fuel Kerosene fuel Monarch type R - PLP Delavan type W - B Delavan type W - B Steinen type S - SS Danfoss type S Danfoss type S Combustion head adjustment This is done when fitting the nozzle, with the blast tube removed.
Start-up, calibration and operation of the burner Pump pressure and air output The burner is provided with an hydraulic device controlled by the electronic start delaying device which reduces to approx. 70% the max. output of fuel and air. 7.6.1 stage adjustment Adjustment of air shutter Place the small plug 9)(Fig.
Start-up, calibration and operation of the burner Electronic start delaying device This electronic start delaying device (Fig. 27) can be wired to a stage thermostat; in this case it performs two functions: Delay of 5 - 6 seconds in the intervention of the 2 stage valve against 1 stage valve.
Check to make sure that no dust has accumulated inside the fan lines suitable for bio fuel use. or on its blades, as this condition will cause a reduction in the air Please contact Riello for further information. WARNING flow rate and provoke polluting combustion.
Maintenance Fuel tank Combustion If water or contamination is present within the fuel tank, it is es- In case the combustion values found at the beginning of the inter- sential that this is removed before the equipment is to be used. vention do not respect the standards in force or, in any case, do This is extremely important when gas oil containing Bio diesel is not correspond to a proper combustion, contact the Technical...
Faults / Solutions Faults / 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 incorrect any damage to the installation, do not unblock the operation of the burner.