Looking for:
Manuals for Riello Products - Ward Heating - ManualsLib has more than 628 Riello Burner manuals |
Riello burner manual download. Riello Burner Manual
Riello burner manual download -
Riello User Manuals Download | ManualsLib.Manuals for Riello Products - Ward Heating
Finally remount the burner 4 C to the slide bars 3 and slide it up to the flange 5 , keeping it slightly raised to prevent the flame stability disk from pressing C against the blast tube.
Tighten the screws 2 on the slide bars 3 and screw 1 that attaches the burner to the flange. If it proves necessary to change a nozzle with the burner already fitted to the boiler, proceed as outlined below: - Retract the burner on its slide bars as shown in fig.
Find the delivery of the two 3. V which is capable of feeding itself within the limits. P listed in the table at the left. The tank higher than the burner A The distance "P" must not exceed 33 ft in order to avoid subjecting the pump's seal to excessive strain; 6 the distance "V" must not exceed 13 ft in order to per-. It is good practice to ensure that the return and suc- tion lines enter the burner from the same height; in this way it will be more improbable that the suction D line fails to prime or stops priming.
A branch con- nection from the loop goes to feed the burner. It is factory set with the - 3. A Remove the plugs from the suction and return con- nections of the pump. Take care that the hoses are not stretched or twisted during installation. Route the hoses through the holes in the plate, prefer- ably using those on the rh side, fig. B : unscrew the screws 1 , now divide the insert piece into its two parts 2 and 3 and remove the thin section blocking the two passages 4. Install the hoses where they cannot be stepped on or come into contact with hot surfaces of the boiler.
Obstructions in the line could cause the seal located on the pump shaft to break. The pump leaves the factory with the by-pass closed. PUMP AL 65 C - In order for self-priming to take place, one of the screws 3 A of the pump must be loosened in order to bleed off the air contained in the suction line.
A GPH The time required for this operation depends upon the diameter and length of the suction tubing. If the pump A fails to prime at the first starting of the burner and the burner locks out, wait approx. After 5 or 6 starting operations allow 2 or 3 minutes for the transformer to cool. Do not illuminate the photocell or the burner will lock out; the burner should lock out anyway about 10 sec- onds after it starts.
Important: the priming operation is possible because the pump is already full of fuel when it leaves the factory. If the pump has been drained, fill it with fuel through the opening on the vacuum gauge connection prior to starting; otherwise, the pump will seize. Whenever the length of the suction piping exceeds 66 - 99 ft, the supply line must be filled using a separate pump.
During the first firing, during the switch over from low to high fire, there is a momentary lowering of the fuel pressure caused by the filling of the high fire nozzle tubing.
This lowering of the fuel pressure can cause the burner to lock-out and can sometimes give rise to pulsations. Once the following adjustments have been made, the firing of the burner must generate a noise similar to the noise generated during operation.
In order to adjust pump pressure, use the relevant 2. Opening of the air 5. Refer to the example in the 8. Significant differences with respect to the pre- A vious measurements indicate the points where more care should be exercised during maintenance. Pump The pump delivery pressure must be stable at PSI. The suction must be less than 6. Unusual noise must not be evident during pump opera- tion. If the pressure is found to be unstable or if the pump runs noisily, the flexible hose must be detached from the line filter and the fuel must be sucked from a tank located near the burner.
This measure permits the cause of the anomaly to be traced to either the suction line or the pump. If the problem lies in the suction line, check to make sure that the filter is clean and that air is not entering the piping.
If rust or other impurities are observed inside the pump, use a separate pump to suck out any water and other D impurities that may have deposited on the bottom of the tank. D Fan B C Check to make sure that no dust has accumulated inside the fan or on its blades, as this condition will cause a reduction in the air flow rate and create incom- plete combustion.
Combustion head Check to make sure that all the parts of the combustion head are in good condition, positioned correctly, free of all impurities, and that no deformation has been caused by operation at high temperatures.
Nozzles Do not clean the nozzle orifices. Replace the nozzles every years or whenever nec- D essary. Combustion must be checked after the nozzles have been changed. Photocell cad cell B Clean the glass cover from any dust that may have accumulated. Photocell 1 can be removed by pulling it outward forcefully.
Flame inspection window C D Clean the glass. Flexible hoses Check to make sure that the flexible hoses are still in good condition. Boiler Clean the boiler as indicated in its accompanying instructions in order to maintain all the original combus- tion characteristics intact, especially the flue gas tem- perature and combustion chamber pressure.
Lastly, check the condition of the flue gas stack. The motor starts and the ignition transformer is con- nected.
The pump 3 sucks the fuel from the tank through the piping 1 and the filter 2 and pumps it under pressure for delivery.
The piston 4 rises and the fuel returns to the tank through the piping 5 - 7. The screw 6 closes the by-pass to the suction side of the pump and the so- lenoid valves 8 - 11 - 16 , de-energized, close the flow to the nozzles.
The hydraulic cylinder 15 , piston A, opens the air damper: pre-purging begins with the low fire air deliv- ery. At the opening of the solenoid valves 8 and 16 the fuel passes through the piping 9 and filter 10 and is then sprayed out through the nozzle, igniting when it comes into contact with the spark.
This is the low fire flame. If the high fire control device is closed, the solenoid valve 11 is opened and the fuel enters the valve 12 and raises the piston which opens two passages: one to piping 13 , filter 14 , and the high fire nozzle, and the other to the cylinder 15 , piston B, that opens the fan air damper for high fire.
The flame safeguard indicator light will light up. Electrical connections NOTES The electrical wirings must be carried out in conformity with the regulations in force in the countries of destination, and by qualified personnel.
Riello S. The burner is factory set for low - high operation and it must be connected to the OCR control device to control fuel oil valve V2. If on - off operation is required, instead of control device OCR install a jumper lead between terminals T6 and T8 of burner terminal strip.
This means they should compulsorily be stopped at least once every 24 hours to enable the control box to check its own efficiency at start-up. Burner halts are normally provided for auto- matically by the boiler load control system. If this is not the case, a time switch should be fitted in series to OC to provide for burner shut-down at least once every 24 hours.
H1 A Heating of air and increase in altitude produce the same effect: the expan- sion of the air volume, i. B It is therefore important to know if the maximum output required of the burner at a given combustion chamber pressure remains within the burner's firing rate range even at different temperature and altitude con- ditions.
Proceed as follows to check the above: 1 -Find the correction factor F in the Table A for the plant's air temperature and altitude. If H3 is greater than H1, as shown in Fig. B , the burner delivers the output required.
If H3 is lower than H1, the burner's delivery must be reduced. Important: the combustion head must be adjusted in respect to the equivalent delivery Qe. Legend for the times t1 Pre-purge time with air damper open. Control program fault conditions and lock-out indication Whenever a fault occurs, the sequence switch stops and with it the lock-out indicator.
The symbol above the reading mark of the indicator gives the type of fault:. No start One of the contacts has not closed The contact of the limit thermostat or any other switching devices in the control loop of terminal 4 to terminal 5 are opened. Extraneous light Lock-out during or after completion of the control program Examples: — Flame not extinguished — Leaking fuel valves — Faulty flame supervision circuit.
Interruption of startup sequence Terminals 6, 7 and 15 remain under voltage until fault has been corrected. Lock-out Defect in the flame supervision circuit, faulty flame signal, extraneous light.
Lock-out Flame signal has been lost during operation. In the event of a burner lockout, more than two consecutive burner reset operations could cause damage to the installation. On the third lockout, contact the Aftersales Service. If further lockouts or burner faults occur, interven- tions must only be made by qualified, authorised personnel as indicated in this manual, and in compliance with the laws and regulations current- DANGER ly in force.
I - Legnago VR Tel. Hingham, Massachusetts, Mississauga, Ontario, U. Open navigation menu. Close suggestions Search Search. User Settings. Skip carousel. Carousel Previous. Carousel Next. What is Scribd? Explore Ebooks. Bestsellers Editors' Picks All Ebooks. Explore Audiobooks. Although the information and recommendations hereinafter "Information" in this guidance is presented in good faith, believed to be correct and has been carefully checked, Riello and its subsidiaries makes no representations or warranties as to the completeness or accuracy of the Information.
Information is supplied upon the condition that the persons receiving same will make their own determination as to its suitability for their purposes prior to use. In no event will Riello and its subsidiaries be responsible for damages of any nature whatsoever resulting from the use of or reliance upon Information. Other than set forth herein, Riello and its subsidiaries makes no additional warranties with respect to the bio compatible burner, either express or implied, including that of merchantability or fitness for a particular purpose or use.
In no event shall Riello and its subsidiaries be liable for any indirect, incidental, special or consequential damages including, without limitation, loss of profits, damages for loss of business profits, business interruption, loss of business information, loss of equipment, or other pecuniary loss or compensation for services whether or not it is advised of the possibility of such damages.
It is necessary, however, to bear in mind that the imprudent and clumsy use of the equipment may lead to situations of death risk for the user or third parties, as well as the damaging of the burner or other items. Inattention, thoughtlessness and excessive confidence often cause accidents; the same applies to tiredness and sleepiness. It is a good idea to remember the following: The burner must only be used as expressly described. Any other use should be considered improper and therefore dangerous.
In particular: it can be applied to boilers operating with water, steam, diathermic oil, and to other uses expressly named by the manufacturer; the type and pressure of the fuel, the voltage and frequency of the electrical power supply, the minimum and maximum deliveries for which the burner has been regulated, the pressurisation of the combustion chamber, the dimensions of the combustion chamber and the room temperature must all be within the values indicated in the instruction manual.
Modification of the burner to alter its performance and destinations is not allowed. The burner must be used in exemplary technical safety conditions.
Any disturbances that could compromise safety must be quickly eliminated. Opening or tampering with the burner components is not allowed, apart from the parts requiring maintenance. Only those parts detailed as available as spare parts by the Manufacturer can be replaced.
The Technical Service Personnel will be glad to give you all the imformation for a correct matching of this burner to the boiler. This burner must only be used for the application it was designed for.
The manufacturer accepts no liability within or without the contract for any damage caused to people, animals and property due to installation, adjustment and maintenance errors or to improper use. Under no circumstances must the intake grids, dissipation grids and ventilation vents in the installation room be covered up with cloths, paper or any other material. Unauthorised persons must not attempt to repair the appliance.
It is dangerous to pull or twist the electric leads. Cleaning operations must not be performed if the appliance is not disconnected from the main power supply. Do not clean the burner or its parts with inflammable substances e. The cover must be cleaned with soapy water.
Do not place anything on the burner. Do not block or reduce the size of the ventilation vents in the installation room.
Do not leave containers and inflammable products or combustible materials in the installation room. He is responsible for the machine and for the training of the people working around it. The user: undertakes to entrust the machine exclusively to suitably trained and qualified personnel; must take all the measures necessary to prevent unauthorised people gaining access to the machine; undertakes to inform his personnel in a suitable way about the application and observance of the safety instructions.
With that aim, he undertakes to ensure that everyone knows the use and safety instructions for his own duties; must inform the manufacturer if faults or malfunctioning of the accident prevention systems are noticed, along with any presumed danger situation.
Personnel must always use the personal protective equipment envisaged by legislation and follow the indications given in this manual. Personnel must observe all the danger and caution indications shown on the machine.
Personnel must not carry out, on their own initiative, operations or interventions that are not within their province. Personnel must inform their superiors of every problem or dangerous situation that may arise. The assembly of parts of other makes, or any modifications, can alter the characteristics of the machine and hence compromise operating safety.
The manufacturer therefore declines any and every responsibility for any damage that may be caused by the use of non-original parts. D88 Fig. Bear in mind that inspection of the combustion head requires the burner to be opened and the rear part withdrawn on the slide bars. The maximum dimension of the burner, without casing, when open is give by measurement H. C 1 Blast tube: short - long Fig. The firing rate value Fig. Pressure in combustion chamber Pressure in combustion chamber D Pressure in combustion chamber Fig.
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. To reset, press the pushbutton. D D D Fig. Please contact Riello for further information. DANGER All the installation, maintenance and disassembly operations must be carried out with the electricity supply disconnected. WARNING The installation of the burner must be carried out by qualified personnel, as indicated in this manual and in compliance with the standards and regulations of the laws in force.
WARNING The handling operations for the burner can be highly dangerous if not carried out with the greatest 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. When handling, keep the load at not more than cm from the ground.
CAUTION After positioning the burner near the installation point, correctly dispose of all residual packaging, separating the various types of material. Before proceeding with the installation operations, carefully clean all around the area where the burner will be installed. In the event of doubt, do not use the burner; contact the supplier. The packaging elements wooden cage or cardboard box, nails, clips, plastic bags, etc.
Checking the characteristics of the burner Check the identification label of the burner, showing: the model A Fig. H Fig. If a Bio blend is in use the installer must seek information from the end user that their fuel supplier can evidence that the blends of fuel conform to the relevant standards.
Check that the materials used in the construction of the oil tank and ancillary equipment are suitable for bio fuels, If not these must be upgraded or replaced with Bio compatible parts.
Particular attention should be given to the oil storage tank and supply to the burner. Riello recommends that existing oil storage tanks are cleaned, inspected and any traces of water are removed BEFORE bio fuel is introduced Contact the tank manufacturer or oil supplier for further advice.
If these recommendations are not respected this will increase the risk of contamination and possible equipment failure. In line oil filters should be replaced making sure that they are Bio compatible. Riello recommends a good quality bio compatible oil filter at the tank and a secondary micron filter are used to protect the burner pump and nozzle from contamination.
The burner hydraulic components and flexible oil lines must be suitable for bio fuel use check with Riello if in doubt. The burner must be commissioned and combustion parameters set to appliance manufacturer's recommendations.
Regularly check visually for any signs of oil leakage from seals, gaskets and hoses. It is strongly recommended that with Bio fuel use, oil filters are inspected and replaced every 4 months. More regularly where contamination is experienced. Installation 1 is preferable, as it is the only one that allows performing maintenance operations as described in this manual.
Installations 2, 3 and 4 permit operation but make maintenance and inspection of the combustion head difficult, page Installation 5 is prohibited for safety reasons.
The position of the threaded holes can be marked using the thermal screen supplied with the burner. D Fig. D 14 GB Installation 5. The range of lengths available, L mm , is as follows: Blast tube 7 Fig. This protective fettling must not compromise the extraction of the blast tube. For boilers having a water-cooled front the refractory fettling 8 - 9 is not required unless it is expressly requested by the boiler manufacturer. Remove the screw 1 fixing the burner 4 to the flange 5.
Withdraw the blast tube 7 complete with flange 5 and slide bars 3. Secure flange 5 to the boiler plate interposing the supplied gasket 6. Use the 4 screws provided after having protected the thread with antiscruffing products. It is advisable to replace nozzles every year during regular maintenance operations.
Tighten the screws 2 on the slide bars 3 and screw 1 that attaches the burner to the flange. If it proves necessary to change a nozzle with the burner already fitted to the boiler, proceed as outlined below: pull back the burner on its slide bars as shown in Fig.
Use spanner 3 Fig. The manufacturing company shall not be liable for any such damage arising from nonobservance of the requirements contained in this manual. Nozzle must be chosen among those in Tab. E: D Fig. E Key Tab. E is required, a nozzle with higher delivery must be chosen. Delivery reduction will be obtained by means of the pressure regulator. D 5. Do not use any sealing products such as gaskets, sealing compound, or tape.
Be careful to avoid damaging the nozzle sealing seat. Finally remount the burner 4 Fig. 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. It is strongly recommended a periodic check of the pump pressure operation annually or better every six months, if the burner operation is continuous.
You are advised to use additional filters on the fuel supply line. Riello recommends a good quality fuel filter at the tank Fig. In case of Biodiesel use, pay attention to install Biocompatible filters.
The tank higher than the burner A Fig. The tank lower than the burner B Fig. It is good practice to ensure that the return and suction lines enter the burner from the same height; in this way it will be less probable that the suction line fails to prime or stops priming. A branch connection from the loop goes to feed the burner.
F 17 GB Installation 5. For the priming pump loosen the screw 3 Fig. Key Fig. The pumps are installed on the burner with the by-pass closed by screw 6 Fig. It is therefore necessary to connect both hoses to the pump. The pump will break down immediately if it is run with the return line closed and the by-pass screw inserted. Remove the plugs from the suction and return connections of the pump.
Insert the hose connections with the supplied seals into the connections and screw them down. Take care that the hoses are not stretched or twisted during installation. Route the hoses through the holes in the plate, preferably using those on the rh side, Fig. Install the hoses where they cannot be stepped on or come into contact with hot surfaces of the boiler.
Now connect the other end of the hoses to the suction and return lines by using the supplied nipples. Obstructions in the line could cause the sealing organ located on the pump shaft to break.
As soon as the burner starts, check the direction of rotation of the fan blade, by looking through the flame inspection window 19 Fig. Stop the burner: switch 1 Fig.
H A Min. H The time required for this operation depends upon the diameter and length of the suction tubing. If the pump fails to prime at the first starting of the burner and the burner locks out, wait approx. After 5 or 6 starting operations allow 2 or 3 minutes for the transformer to cool. If the pump has been drained, fill it with fuel through the opening on the vacuum meter prior to starting; otherwise, the pump will seize.
Whenever the length of the suction piping exceeds 20 - 30 meters, the supply line must be filled using a separate pump. Electrical wiring must be carried out by qualified personnel and in compliance with the regulations currently in force in the country of destination. Refer to the wiring diagrams. The manufacturer declines all responsibility for modifications or connections different from those shown in the wiring diagrams. Any inversion would cause a lockout due to firing failure.
Check that the electrical supply of the burner corresponds to that shown on the identification label and in this manual. This means they should compulsorily be stopped at least once every 24 hours to enable the control box to perform checks of its own start-up efficiency. 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.
The electrical safety of the device is obtained only when it is correctly connected to an efficient earthing system, made according to current standards. In the event of doubt, have the electrical system checked by qualified personnel. The electrical system must be suitable for the maximum input power of the device, as indicated on the label and in the manual, checking in particular that the section of the cables is suitable for the input power of the device. For the main power supply of the device from the electricity mains: - do not use adapters, multiple sockets or extensions; - use an omnipolar switch, as indicated by the current safety standards.
Do not pull the electric cables. Before carrying out any maintenance, cleaning or checking operations: DANGER disconnect the electrical supply from the burner by means of the main system switch; 6. If the cover is still present, remove it and proceed with the electrical wiring according to the wiring diagrams. Electrical wiring must be made in accordance with the regulations currently in force in the country of destination and by qualified personnel.
All the cables to be connected to the burner terminal strip 5 Fig. The fair leads and precut holes can be used in various ways. One example is given below Fig. Even if the scale of the thermal cut-out does not include rated motor absorption at V, protection is still ensured in any case.
If V power supply is used, change the motor connection from star to delta and change the setting of the thermal cutout. After burner firing a complete burner adjustment should be performed. Turn screw 4 Fig. Notches D Fig. Diagram Fig. Cam IV: not utilized. In the above instructions we left the burner running in MIN output operation. Now press button 2 Fig. Adjusting the nozzle flow rate The nozzle flow rate varies according to the fuel pressure on the nozzle return.
NOTE With a pump delivery pressure of 20 bars, the pressure on the nozzle return must not exceed 17 bar. The pressure difference between pump delivery and nozzle return must be at least 3 bars. With smaller pressure differences, the pressure on the nozzle return can be unstable.
To fix the maximum nozzle flow rate, vary the final profile on the upper cam 7 Fig. The nozzle return pressure value is indicated by the pressure gauge D Key Fig. These shutters are factory set to maximum opening. Firstly adjust shutter 2 which must be closed gradually until optimum combustion is obtained. If total closure of shutter 2 is not sufficient, also close shutter 1 secondly as follows: vary the final profile of the lower cam 4 Fig.
If the burner is operated at maximum power, the fan air may not be sufficient even with both shutters 1 and 2 fully open. In this case, remove shutter 2 and adjust the air using shutter 1 only as described above.
Cams 7 -4 Fig.
Comments
Post a Comment