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Summary of Contents for Cuenod GRANT 4 R LN
- Page 1 GRANT 4 R LOW NOx LIGHT OIL BURNER Instructions to Assembly, Commissioning and Maintenance Before installing and using the burner, read this manual carefully and keep it close to the burner.
- Page 2 Dear Client, We would like to thank you for having chosen a CUENOD product. The model chosen by you is a high-performance product with an advanced technological conception, high reliability and excellent construction quality. We advise you to entrust the running and maintenance of this appliance to know qualified professionals, and also to use only original spare parts when needed.
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Page 3: Table Of Contents
CONTENTS 1 SAFETY Overview ..............5 Intended use. - Page 4 5 COMMISSIONING Safety during commissioning ..........32 Factory pre-setting .
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Page 5: Safety
SAFETY SAFETY Overview These instructions for the installation, commissioning and maintenance of the burner are for use by technicians from professional heating companies that are qualified to carry out these activities. The instructions contain indications and information on how to move, handle, activate, adjust, maintain and remove the appliance and how to dispose of the components at the end of the their useful life. -
Page 6: Symbols Used
SAFETY Symbols used 1.3.1 Key to symbols used in the manual DANGER Maximum danger. Indicates operations that cause serious injury, death or long-term health risks if performed incorrectly. DANGER DANGER DANGER Indicates a dangerous situation that could cause serious injury, death or long-term health risks, caused by electricity, if handled without due care or incorrectly. -
Page 7: Requirements For Personnel Or Operators
SAFETY Requirements for personnel or operators CAUTION It may be hazardous to assign activities to personnel that are not sufficiently qualified. It may CAUTION harm the operators themselves if they perform manoeuvres or operations incorrectly, with a serious impact on personal safety, things and property. CAUTION Installation, commissioning and maintenance activities must only be carried out by the personnel of dedicated heating companies specifically qualified to perform these tasks. -
Page 8: General
The ventilation system ensures a high level of efficiency, and thanks to a powerful transformer, cold starts don’t cause problems. The operation of GRANT 4 R LN V burners is reliable even in the event of persistent or intermittent wind, ignition takes place effectively and with smoke-developed index control. -
Page 9: Identification
GENERAL Identification Check the identification label of the burner (“Fig. 1”). Burner code Electrical supply Week and year of manufacture Protection level Burner model Electrical consumption Factory power setting Types of fuel used Burner power output Serial number Fig. 1 CAUTION It is strictly forbidden to remove the identification label. -
Page 10: Structure
GENERAL Structure 2.4.1 Structure of the burner Power indication LED Air valve indicator Connection PLUG-IN between control Housing for internal rotor box and ignition transformer Snorkel Adjustement nozzle line screw Air setting Reset button Air intake Control box Fig. 2 10/64... - Page 11 GENERAL Combustion head Extended pressure port Cover fixing screw Burner base Burner fixing bolt Oil pressure regulator Burner flange (supplied) Fuel-oil pump Conventional flue carter (optional) Solenoid valve Cable kit with 7-pin connectors Ignition transformer Electric motor for pump and fan Front panel Capacitor Fig.
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Page 12: Structure Of The Combustion Head
GENERAL 2.4.2 Structure of the combustion head Blast tube Electrode group fixing screw Diffuser Combustion head fixing screw Electrode group Nozzle Diffuser fixing screw Fig. 4 12/64... -
Page 13: Control Box
GENERAL Control box The EBR-M4 control box, controls and monitors the forced draught burner. The microprocessor- controlled program sequence ensures maximum stability of time periods, regardless of fluctuations in the power supply or ambient temperature. The design of the control box protects it from the effects of flame outs. Whenever the supply voltage drops below its rated minimum level (170 ±... -
Page 14: Controlled Shutdown
GENERAL 2.6.2 Controlled shutdown – Boiler temperature control interrupts heat request. – The fuel-oil solenoid valve closes and the flame is extinguished. – The post-ventilation starts: time factory-set at 15 s. After the burner motor switches off. – Burner enters standby. 2.6.3 Safety function A safety shutdown occurs:... -
Page 15: Technical Data
TECHNICAL DATA TECHNICAL DATA Dimensions and weights Ø 75 Ø 175 Ø 151,5 15 Max Ø 126,5 GRANT 4 R 18 LN V18 Øi 100 GRANT 4 R 24 LN V15-26 GRANT 4 R 32 LN V26-36 Fig. 7 Weight (kg) Model with packaging GRANT 4 R 18 LN V18... -
Page 16: Technical Data
TECHNICAL DATA Technical data GRANT 4 R 18 LN GRANT 4 R 24 LN GRANT 4 R 32 LN V15-26 V26-36 19,0 kW 25,2 kW 33,0 kW Burner output factory setting 16.337 kcal/h 21.668 kcal/h 28.375 kcal/h Oil throughput factory setting 1,58 kg/h 2,10 kg/h 2,75 kg/h... -
Page 17: Electrical Diagram
TECHNICAL DATA Electrical diagram CONTROL BOX EBR-M4 R 15-15 B4 S3 T2 T1 B4 S3 T2 T1 PERMANENT LIVE (230V-50HZ) EARTH NEUTRAL SWITCH LIVE Photo-resistor STS Safety thermostat MV Fan motor KA Relay Ignition transformer Pre-heater YVg Oil solenoid valve SA Burner switch On / Off STC Boiler thermostat STF Safety fume thermostat... -
Page 18: Installation
INSTALLATION INSTALLATION Safety during assembly DANGER Danger of death! - Contact with live electrical components may cause serious incidents. - Only professionally-trained and qualified personal can operate on the electrical system. - Before any operation, switch off the power supply to the system by operating the main switch. Check there is no power and ensure restart is impossible. -
Page 19: Installation Area
INSTALLATION Installation area Before installation, make sure that the installation area satisfies the following requirements: – operating temperature between +5°C and +45°C – dry, frost resistant, well-ventilated – no accumulation of heavy powders – no high levels of humidity – no atmospheric pollutants created by halogenated hydrocarbons (contained in solvents, adhesives, aerosols, etc.) –... -
Page 20: Preliminary Checks Before Mounting The Burner
INSTALLATION Preliminary checks before mounting the burner Before mounting the burner onto the boiler: – check the distance between tips of electrodes (2 mm) Fig. 10 – Check the position of the electrodes assuring that they are centered as shown in “Fig. 11”. A-A 1 : 1 Fig. -
Page 21: Burner Assembly
INSTALLATION Burner assembly CAUTION Install the burner on the boiler according to the installation position shown in “Fig. 12”. CAUTION Installation 2,3 and 4 are forbidden for safety reason. Fig. 12 The burner is secured to the boiler using the connection flange supplied with the burner. Follow the instructions below: –... - Page 22 INSTALLATION – position the flange (2), with the screw (1) facing upwards, onto the boiler and secure it with the nuts (5) supplied – tighten the nuts (5) of the flange evenly with a tightening torque of 3,5 Nm max. –...
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Page 23: Removing And Fitting The Burner Cover
INSTALLATION – insert the air intake pipe (8) and secure it using a pipe clamp (9), not supplied – in case of conventional flue applications remove snorkel and air conveyor (10) and replace with the conventional flue carter (11) (optional). Fig. -
Page 24: Oil Systems
INSTALLATION Oil systems FUEL LEAKS - Fuel leaks may cause fire to break out. - They may be toxic via inhalation and cause skin irritation. CAUTION - Act swiftly to remove the cause of the leak. If it is connected to a maintenance operation, use the dedicated personal protective equipment. -
Page 25: Hydraulic Diagram
INSTALLATION 4.7.1 Hydraulic diagram Pressure Suction Return Bypass screw Pressure gauge port Diaphragm Pressure adjustment Nozzle outlet Return outlet Filter Suction inlet NC Valve Pressure regulator Constriction Vacuum gauge port Fig. 18 4.7.2 Oil pump Fuel-oil solenoid valve Suction connection Solenoid valve electrical connection Return connection Fuel delivery pipe... - Page 26 INSTALLATION • Two-pipe system (standard) The pump is supplied for operation with two pipes. Fig. 20 • One-pipe system (optional) For one-pipe operation it is necessary to install the by-pass washer supplied with the burner. In case of one-pipe system only one flexible oil pipe is required. To apply the by-pass washer kit, proceed as follows: –...
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Page 27: Oil Feed And Suction Line With Two-Pipe System
INSTALLATION 4.7.3 Oil feed and suction line with two-pipe system Burner lower than tank H = x-y Fig. 22 Pipe length (m) Pipe length (m) H (m) H (m) Ø6 mm Ø8 mm Ø10 mm Ø6 mm Ø8 mm Ø10 mm CAUTION - X <... -
Page 28: Electrical Connection
4.8.1 Electrical connection to the boiler Burner GRANT 4 R LN V leaves the factory configured for connection to a 7 pin electrical cable. A 7 pins electrical cables is also supplied. Proceed as follows to connect the burner to the boiler:... -
Page 29: Removing The Burner
INSTALLATION – connect the cable coming from the boiler to the 7 pins plug (1) (supplied). from the boiler Fig. 24 Removing the burner DANGER Danger of death caused by live components! Before carrying out any operations on the burner, operate the main power switch for the system to cut off the power supply. - Page 30 INSTALLATION – remove the fuel delivery pipe (2) and the return pipe (3) Fig. 26 – drain any fuel still inside the burner and in the fuel delivery pipe and collect it in a basin – loosen the pipe clamp (7) and remove the air intake pipe (8), if present Fig.
- Page 31 INSTALLATION – loosen the nut (9) securing the burner to the boiler and, rotating the burner (10) slightly to the right, slide it off the boiler. Fig. 28 CAUTION Dispose of any fuel that comes out of the burner in accordance with applicable legislation in the destination country.
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Page 32: Commissioning
COMMISSIONING COMMISSIONING Safety during commissioning CAUTION It may be hazardous to assign activities to personnel that are not sufficiently qualified. It may harm the operators themselves if they perform manoeuvres or operations incorrectly, with a CAUTION serious impact on personal safety, things and property. CAUTION Installation, commissioning and maintenance activities must only be carried out by the personnel of dedicated heating companies specifically qualified to perform these tasks. -
Page 33: Altitude Settings
COMMISSIONING 5.2.1 Altitude settings Data shown in the table at page 32 are to be considered when the burner is operating in a range of altitude from 0 to 500 m a.s.l. When operating at higher altitudes, due to air density decrease, the burner needs to be set according to the following tables: INSTALLATION ALTITUDE: 500 - 1000 m Combustion head... -
Page 34: Combustion Adjustment
COMMISSIONING Combustion adjustment The burners leave the factory set according to the paragraph “5.2 Factory pre-setting”. The installation of the burner on the boiler, the commissioning and servicing must be carried out following the boiler technical manual, including the check of the CO2 and CO level in the flue gases, their temperatures and the average temperature of the water in the boiler. -
Page 35: Checks Before Commissioning
COMMISSIONING Checks before commissioning The following must be checked before initial commissioning: – That the burner is assembled in accordance with the instructions given here – That the burner is pre-set in accordance with the values in the adjustment table –... -
Page 36: Burner Start
COMMISSIONING 5.5.1 Burner start Before starting the burner, draw oil in until the filter is completely filled. Then start the burner by creating a heat demand on the boiler (refer to boiler installation manual). Open the bleed screw on the oil filter to allow the oil line to bleed fully during the preventilation phase. The negative pressure (vacuum) must not fall below 0.4 bar. -
Page 37: Check Pump Rotation
COMMISSIONING 5.6.4 Check pump rotation CAUTION If the pump is blocked, proceed as follows. CAUTION – Disconnect the oil pipe from the pump – remove the pump (1) from the motor loosening screws (3) using the key supplied (2) Fig. 33 –... -
Page 38: Commissioning Record
COMMISSIONING Commissioning record ✓ Confirm the work carried out in the commissioning report below by marking and X or an Commissioning work Note Done Check the heating system has been filled correctly and the air has been removed Check the flue system Check there are no leaks in the fuel supply system Start the burner and check that it is operating... -
Page 39: Setting And Values Recorded
COMMISSIONING 5.7.1 Setting and values recorded Customer: _________________________________________________________________ Heating system: _____________________________________________________________ BOILER Type Output kcal/h BURNER GRANT 4 R 18 LN GRANT 4 R 24 LN GRANT 4 R 32 LN Type V15-26 V26-36 Serial number Output Nozzle size Spray angle/cone type Fan pressure mbar... -
Page 40: Maintenance
MAINTENANCE MAINTENANCE Safety during maintenance The periodic maintenance is important for safety, good operation and long life cycle of the burner, reducing also consumption and polluting emissions. The burner must be serviced at least once a year. Only qualified and authorised personnel shall carry out maintenance and the calibration of the burner, in accordance with this manual and in compliance with the local standards and regulations. -
Page 41: Important Components For Safety
MAINTENANCE Important components for safety In order to ensure the long working life of the burner, we recommend periodically carrying out component checks. 6.2.1 List of parts typically subject to wear Parts subject to wear should be regularly checked by the technician during maintenance operations and if necessary replaced. -
Page 42: Removing The Burner
MAINTENANCE Removing the burner DANGER Danger of death caused by live components! Before carrying out any operations on the burner, operate the main power switch for the system to cut off the power supply. To remove the burner from the boiler, proceed as follows: –... - Page 43 MAINTENANCE – remove the fuel delivery pipe (2) and the return pipe (3) Fig. 37 – drain any fuel still inside the burner and in the fuel delivery pipe and collect it in a basin – loosen the pipe clamp (7) and remove the air intake pipe (8) Fig.
- Page 44 MAINTENANCE – loosen the nut (9) securing the burner to the boiler and, rotating the burner (10) slightly to the right, slide it off the boiler. Fig. 39 CAUTION Dispose of any fuel that comes out of the burner in accordance with applicable legislation in the destination country.
- Page 45 MAINTENANCE To facilitate maintenance operations, secure the burner to the boiler by inserting the fastening screw (11) into the hole (12) on the burner base. Use one of the three square grooves on the burner base to secure the burner, which should be rotated to the best position for the maintenance operation to the carried out.
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Page 46: Burner Maintenance
MAINTENANCE Burner maintenance – Check the fuel supply components (pipe, pump, fuel delivery pipe) and their connections for leaks and signs of wear, replace parts as necessary. – Check that the electrical connection and connection cables are not damaged, replace them if necessary. -
Page 47: Diffuser Position Check
MAINTENANCE CAUTION If the air distributor (1) is removed from its housing, it must be repositioned, making sure that the hole (2) is aligned with the pin (3). CAUTION Fig. 42 6.4.2 Diffuser position check To check the position of the diffuser: –... - Page 48 MAINTENANCE IMPORTANT INFORMATION The gauge should be kept in the position shown in figure. – check the distance between the diffuser (1) and the nozzle (2) as shown in the figure. Fig. 44 – after having adjusted the position of the diffuser tighten the screw (8). –...
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Page 49: Combustion Head Position Check
MAINTENANCE 6.4.3 Combustion head position check To check the position of the combustion head: – check the distance between the blast tube (1) and the nozzle (2) as shown in the figure. Fig. 46 6.4.4 Electrode position check – Check the distance between tips of electrodes (2 mm) Fig. -
Page 50: Replacing The Coil
MAINTENANCE – Check the position of the electrodes assuring that they are centered as shown in “Fig. 48”. A-A 1 : 1 Fig. 48 6.4.5 Replacing the coil The pump coil is designed and built to withstand temperatures of up to 85°C. In the event of malfunctions or faults, replace the coil using the following procedure: –... -
Page 51: Replacing The Capacitor
MAINTENANCE 6.4.6 Replacing the capacitor Proceed as follows to replace the capacitor: – detach the electrical connection from the capacitor (1) – remove the capacitor (2) and replace it Fig. 50 – refit the components, reversing the procedure above. 6.4.7 Cleaning the internal rotor Check there is no dust inside the fan wheel because this could reduce the combustion performances. - Page 52 MAINTENANCE Observe the positioning diagram below when replacing the motor and blower wheel (3). The inside flange (A) of the blower wheel must be fitted at a lower position (quote C) than the equipment plate (B),tighten the set screw on the blower wheel. Burner Position C GRANT 4 R 18...
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Page 53: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING Combustion performances After carrying out commissioning, cleaning or maintenance, combustion parameters must be verified. Boiler has to maintain in operation at least 15 min. or reach a steady condition of operation, then check: – pump pressure – flue gas temperature –... -
Page 54: Troubleshooting Diagram
TROUBLESHOOTING Troubleshooting diagram Boiler control Pre heater Burner supplied with consent motor heat demand (within 400s) runs Replace Check green Motor Pump motor blocked LED lights seized capacitor Check green Pre heater LED lights damaged Check boiler Replace Check Clean Dirty control motor... - Page 55 TROUBLESHOOTING Boiler control Boiler control supplied with supplied with heat demand heat demand Burner Lock out Is there a Remove Pre heater Burner Lock out Is there a Remove motor during pre false flame false flame Pre heater functionality motor during pre false flame false flame...
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Page 56: Spare Parts List
SPARE PARTS LIST SPARE PARTS LIST Fig. 56 56/64... - Page 57 SPARE PARTS LIST GRANT 4 R 18 LN GRANT 4 R 24 LN GRANT 4 R 32 LN V15-26 V26-36 N° Description 3146483 3146168 3146169 0010 OIL PUMP 65327692 65327692 65327692 0020 COIL 65327693 65327693 65327693 0030 COUPLING 65327694 65327694 65327694 0040 FLEXIBLE HOSE...
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Page 58: Manufacturer Certificate
MANUFACTURER CERTIFICATE MANUFACTURER CERTIFICATE Manufacturer Certificate / EU Design Conformity Declaration We, CUENOD, declare under our sole responsibility that the light oil burners named GRANT 4 R ... LN is conform to the following standards: – EN 267 – EN 55014-1 –... -
Page 59: Appendix
APPENDIX APPENDIX 10.1 Use of bio fuel blends The burner is suitable for light oil with a biofuel content of up to 10%. It is a minimum requirement that the fuel blend (up to 10% Biofuel) is obtained with light oil in accordance with the relevant standards, regional regulations and FAME in accordance with EN 14214. - Page 60 APPENDIX Wherever an existing tank is to be used to store the oil, in addition to the above mentioned checks on the materials, it is essential that the tank is first inspected to verify its condition and check for the presence of water or other contaminants. If contaminants are found, a deep clean should be carried out.
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Page 61: Notes
NOTES NOTES 61/64... - Page 62 NOTES 62/64...
- Page 64 420010968801_R2 15-3-2019 (EN) Les renseignements portés sur les tarifs et documentations commerciales ou techniques, les schémas et côtes d’encombrements sont donnés à titre indicatif et valables à un instant donné. Le CONSTRUCTEUR se réserve le droit d’apporter toutes modifications de présentation, de forme, de dimension, de conception ou matière à...
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