General information Contents General information Contents ..............................2 Important information..........................3 Burner description ..........................4-5 Installation Air duct connection, Rotating air box ...................... 6 General information regarding burner installation .................. 7 Boiler lining for L-E, L-EF3 et L-EUF burner................... 8 Burner installation ...........................
Any other type of application requires the approval of Safety measures Installation location ELCO. The burner may only be used in The burner must not be operated in The burner and accessories must be accordance with the instructions set out rooms with aggressive vapours (e.g.
General information N6/N7/N8/N9 Burner description Power controller (option) Casing Burner tube Integrated switch cabinet Burner flange Air box Lifting rings (underneath the metal cover for the N8 burner) Connection cooling sight glass Air pressure switch Electric motor Y10 Actuator for air and fuel-oil flow regulator 102 Pump Note:...
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102 Pump Note: The construction principle for EKEVO 6 - EKEVO 9 L-E burners is largely identical. To provide an example, only the scenario with burner EKEVO 6 L-E is shown on this page. 04/2019 - Art. Nr. 4200 1089 7900A...
Installation EKEVO 6/EKEVO 7/EKEVO 8/EKEVO 9 Air duct connection Rotating air box EKEVO 6/EKEVO 7 EKEVO 6/EKEVO 7 for dimensions: see technical data EKEVO 8/EKEVO 9 EKEVO 8/EKEVO 9 for dimensions: see technical data * Rotation procedure of air box: see chapter «Servicing»...
Installation General information regarding burner installation Tightening torques During installation, commissioning and maintenance, the following torques for screw connections must be observed. Recommended tightening torques Standard unions N.B.: In general, the correct tightening torques have been applied when the unions are tightened hand-tight using a screwdriver (ISO 272) or angled Allen key.
Installation Boiler lining for L-E, L-EF3 und L-EUF burner Boiler lining N6-N8 L-E / EKEVO 6-EKEVO 8 L-E The burner lining must be installed at a right angle to the burner tube. Possible trimming work (bevelling, rounding) as required for reverse boilers, for example, should done at a diameter not below 70% of the combustion chamber diameter.
Installation Burner installation Burner flange seal (option 1) thermocord, the operator should wear The surface of the The sealing tape in the accessories kit loose-fitting, long-sleeved clothing. In Seal corners with entire circumference sealing tape must be affixed to the burner as shown the event of high fibre dust must be sealed in the drawing below.
Installation Combustion components Combustion components N/EKEVO 6/7 L-E adjustment data/check G (mm) Burner A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) H (mm) min. max. N/EKEVO 6.2400 N/EKEVO 6.2900 N/EKEVO 7.3600 N/EKEVO 7.4500 04/2019 - Art. Nr. 4200 1089 7900A...
Installation Combustion components Ignition electrodes N/EKEVO 6 - N/EKEVO 9 L-E/L-EF3/L-EUF adjustment data/check Note: If there are any ignition or flame detection problems, check the setting and dimensions of the electrodes. If the wear is too great, replace the electrodes. N/EKEVO 6 - N/EKEVO 9 L-EF3 N/EKEVO 6/7 L-E Burner...
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Installation Combustion components Ignition electrodes N/EKEVO 6 - N/EKEVO 9 L-E/L-EF3/L-EUF adjustment data/check Burner Ø A [mm] B [mm] C [mm] G [mm] H [mm] J [mm] K [mm] N/EKEVO 2,5... 3 62,7 16,9 94,8 12,5 12,5 8 L-E N/EKEVO 2,5...
Installation Combustion components Installation Installing the combustion components • Check the settings for the ignition electrode and the combustion components as shown. • Insert the combustion components into the flame tube, tighten the securing screws S3. • Connect the oil supply (fast-closing couplings).
Installation Air pressure switch Air pressure switch in other important gas consumption The air pressure switch is provided for countries. monitoring the pressure of the N.B.(Gas and air pressure switches) combustion air fan. Pressure switch The pressure switches must be set in LGW...
Hydraulics General information regarding the fuel-oil system Fuel-oil hydraulics diagram Air pressure switch N6, N7 Fan motor 119 Pressure tap 120 Air flap 143 Manometer with shut-off valve (141) 174 Ventilator 349 Actuator Oil ignition transformer Pump motor Y16 Fuel-oil safety valve, supply Y18 Fuel-oil safety valve, return 105 Fuel-oil hose 110 Fuel-oil nozzles...
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Hydraulics General information regarding the fuel-oil system Fuel-oil hydraulics diagram Pump motor N8, N9 Y16 Fuel-oil safety valve, supply Y18 Fuel-oil safety valve, return 143 Manometer with shut-off valve (option) 175 Fuel-oil filter 176 Fuel-oil pump 187 Pressure regulation valve (integrated in pump) 188 Fuel-oil hydraulic block 200 Measuring point fuel oil suction...
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Hydraulics General information regarding the fuel-oil system Fuel-oil hydraulics diagram Pump motor EKEVO 8,9 Y16 Fuel-oil safety valve, supply Y18 Fuel-oil safety valve, return 141 Pump input pressure measuring point 143 Manometer with shut-off valve (141) (option) 175 Fuel-oil filter 176 Fuel-oil pump 311 Fuel-oil pressure switch, return (max.)
Hydraulics Fuel-oil pressure switch Fuel-oil pressure switch 3 bar. The set shut-off pressure should Fuel-oil pressure switches are used to also take the switching differential into monitor burners to ensure that they do consideration. not exceed or fall below specific fuel-oil When the setting procedure is complete, pressures.
Hydraulics General information regarding the fuel-oil system Fuel-oil connection Venting Hoses are used to make a connection to With the ring line, if any, in operation, the fuel-oil tubes or the gate valves. To open the supply line and return gate prevent kinks and therefore any risk of valves.
Hydraulics Pump type TA Areas of application Pumping capacity Capacity (l/hr) - Domestic oil and heavy-grade oil. - Two-line system. Description of functions The gearbox draws the fuel-oil from the tank and supplies it under pressure to the valve which controls the oil pressure for the nozzle line.
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Hydraulics Pump type TA General Attachment Flange attachment Connections Cylindrical in acc. with ISO 228/1 Supply line and return G 1/2 Nozzle outlet G 1/2 Pressure test connection G 1/4 Vacuum test connection G 1/4 Shaft Ø 12 mm Bypass-plug Used in the vacuum connection for two-line installation Weight...
Commissioning Fuel-oil hydraulic block When replacing the solenoid valves during servicing, ensure that the right valve type is fitted the right way round. The solenoid valve in the supply line (type 321 F 2523) must be fitted so that the flow direction punched on the valve flange is the same as the flow direction of the oil (from the pump to the nozzle rods).
Commissioning Return nozzle rod RDN Return nozzle rod RDN Stroke setting (control needle) Hydraulic piston system Fuel-oil connection, return Fuel-oil connection, supply Return nozzle fluidics W-50° Please note: Description needle head. If the pump pressure is too The stroke (1) is set at the factory, The return nozzle rod RDN is suitable for little (<...
Commissioning Nozzle selection, type W1 - 50° Return nozzle Fluidics nozzle W1 is a return nozzle with integral, spring-loaded stop needle. The flow is regulated by changing the return pressure, while the supply pressure is held constant. Before commissioning, the nozzle size must be compared with the output conveyed.
Commissioning Nozzle selection, type W1 - 45° Return nozzle Depending on burner size and the furnaces concerned, it may be possible to use Fluidics nozzles W1 with a spray angle of 45°. The correct nozzle is selected as appropriate to the combustion chamber delivered with the burner.
Commissioning Allocation of nozzle - W1 - 45°/50° Supply pressure 25 / 28 bar Size of the control shaft ~Maximum power ~Maximum power with a maximum pressure Fluidics fuel oil nozzle 25 bar 28 bar of 2 bar in the circulation loop Fluidics W1 100 1300...
Commissioning Nozzle selection, type W2 - 45°/50° Return nozzle Fluidics nozzle W is a return nozzle with integral, spring-loaded stop needle. The flow is regulated by changing the return pressure, while the supply pressure is held constant. Before commissioning, the nozzle size must be compared with the output conveyed.
Commissioning Allocation of nozzle - W2 - 45°/50° Supply pressure 25 / 28 bar ~Maximum power ~Maximum power Regulation spindle size Fluidics fuel oil nozzle 25 bar 28 bar Pressure in the loop pipe 2 bar max. Fluidics W2 100 1150 1250 Fluidics W2 115...
Commissioning M14 nozzle adapter Nozzle selection - Sonic model Only L-EF3: To use the burner with inverted combustion chambers, Sonic nozzles with a spray angle of 45° can be used. A special adapter is required in order to fit this model into the nozzle rod (see illustration).
Commissioning Nozzle selection, type Sonic 60° Diagram - Sonic-Spray DZ 1000-60° return nozzle with regulated return. extra-light fuel-oil Supply pressure 28 bar. Return pressure at the hydraulic block [bar] The Sonic-Spray return nozzle is Preference should be given to the use of available from the supplier with various 45°...
Commissioning Allocation of nozzle - Sonic 60° Supply pressure 25 / 28 bar Size of the control shaft ~Maximum power ~Maximum power with a maximum pressure Sonic fuel oil nozzle 25 bar 28 bar of 2 bar in the circulation loop Sonic 160kg-60°...
Commissioning Nozzle selection, type Sonic 45° Diagram - Sonic-Spray DZ 1000-45° return nozzle with regulated return. Fuel: domestic fuel-oil, Supply pressure 28 bar. Return pressure at the hydraulic block [bar] The Sonic-Spray return nozzle is Preference should be given to the use of available from the supplier with various 45°...
Commissioning Allocation of nozzle - Sonic 45° Supply pressure 25 / 28 bar Size of the control shaft ~Maximum power ~Maximum power with a maximum pressure Sonic fuel oil nozzle 25 bar 28 bar of 2 bar in the circulation loop Sonic 140kg-45°...
Commissioning Electronic burner controller Description The electronic burner controller is a programmable automatic firing device with an integrated electronic compound controller. There may be additional functions, depending on the equipment and model. The following burner-specific controllers are used. Burner controller BT 320 BT 330 Manufacturer...
Commissioning Switch cabinet door layout Manual terminal for controlling the burner control unit NEXTRON Switch / light indicator control voltage Power control +/- Manual / Automatic switch Local - 0 REMOTE switch Power controller (option) EKEVO Note: The above information is for standard equipment.
Commissioning Servomotor STE Servomotor STM 40 The BT300 electronic control system works with the STE4.5 numerically controlled servomotor. For monitoring the function and direction of rotation, there is a driver with digital feedback via encoder disc. Observe the commissioning procedure for BT300.
Commissioning Lamtec 6 / 16 Nm servomotor Technical data 6 Nm: Voltage: 230 V AC Frequency: 50 Hz Angle of rotation: 90° Running time: 60 sec. for 90° Nominal torque: 6 Nm Static holding moment: 4,5 Nm Dimensions (W x H x D): 101 mm x 117 mm x 170,5 mm Potentiometer (fitted): 5 k...
Commissioning Flame sensor The flame sensor is a component of the Depending on the requirements of the In some gas burners, flame monitoring flame monitoring system. burner and fuels, the flame sensor may is achieved by means of ionisation. In be an optical sensor that monitors light this case, no optical flame sensor is In interaction with the automatic...
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Commissioning Flame sensor Table: cell setting Burner FFS08 (IR) QRA 2 A [mm] Angle α [°] A [mm] Angle α [°] A [mm] Angle α [°] N/EKEVO 6 Standard N/EKEVO 7 L-E Standard N/EKEVO 7 L-EF3 Standard N/EKEVO 8-9 Standard EKEVO 6/7 N/EKEVO 8/9 Burner...
Commissioning Electrical connection Checks before commissioning All electrical installation and Before working on electrical connection work must only be carried components, switch off the electricity out by a suitably qualified electrician. supply via an omnipolar cut-off switch. N.B.: The applicable Check that the power supply is guidelines and directives completely off and take all safety...
Commissioning Fuel-air compound control Fuel-air compound control Proceed in accordance with the Equipment option: This compound pneumatic control commissioning instructions for the control system with precision-adjustment electronic compound control system To improve the efficiency of the system, capability has been designed to allow when making gradual adjustments to the combustion manager can be the fuel and air flow rates to be steadily...
Commissioning Burner power adjusting sequence The burner is operated and adjusted Adjusting sequence Please note: using a handheld device or a PC (serial (Short description) If changes are made to the primary gas interface). • Switch on burner (switch on control pressure, test all burner power settings.
Commissioning Inspection Before commissioning the system for Fuel-oil commissioning the first time, the following inspections must be carried out: Open all the gate valves on the fuel-oil supply system. • Observe the operating instructions of • Set the fuel selection via remote the boiler manufacturer.
Commissioning Preventilation Preventilation: Assuming the conditions in the area or Please note: the boiler unit in the case of electronic Care must be taken to ensure that the are the same for preventilation and compound controls (BT300/ boiler system is adequately preventilated.
Commissioning Fuel-oil start-up mode Fuel-oil operating mode General safety functions Fuel-oil start-up mode The solenoid valves open and release be closed when the burner is in its off If heat is required by the furnace, the position so as to prevent cold air from the oil, which is under pressure, to the electronic combustion manager flowing through the burner, heat...
Servicing Maintenance Burner and boiler servicing must only - Check the ignition electrodes and stage to avoid greater consequential be carried out by a professionally ignition sparking. Clean and readjust if damage. Listen to the motor bearing qualified heating engineer. The necessary noise to identify possible irregularities.
Servicing Maintenance Replacing the control unit Warning! parts. Using defective or damaged com- tion, and may even cause injury (risks of Replace any damaged or defective com- ponents may cause malfunctioning and serious or fatal injury). ponents! Replace safety components hazardous operation.
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Servicing Maintenance Checking the combustion N8/N9 N6/N7 components • N6/N7: Unscrew the 2 screws S, remove the burner cover. • N8/N9: Live the front end of the burner and remove rearwardly. • EKEVO : Unscrew the 6 screws W, remove the housing cover. •...
Servicing Maintenance Checking / installing the combustion components Cleaning the cover Checking the flue gas temperature • Check the flue gas temperature at • Do not use abrasive products or Important regular intervals. products containing chlorine. After every operation: check the •...
Servicing EKEVO 6/EKEVO 7 Rotation procedure of air box Rotation procedure of air box Remove the flexible air hose. Disassemble the servomotor from the air flap and fasten it to the casing. Disassemble the cover of the air box. Unfasten the air box support, swing it towards the new desired position and fasten it again (rotation possible in 45°...
Servicing EKEVO 8/EKEVO 9 Rotation procedure of air box Installation instructions for air box rotation on the burner By default the air box opening on the EK EVO is pointing in the direction of the boiler. However, if an air duct connection is provided, it is possible to orient the air box, with certain adjustments, in the direction of this duct.
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Servicing EKEVO 8/EKEVO 9 Rotation procedure of air box 6. Removing and rotating the air box closed. The drive can then be coupled to support the air flap shaft. Retighten the screws Before you can orient the air box in the on the coupling.
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Servicing EKEVO 8/EKEVO 9 Rotation procedure of air box Figure Wiring adjustment Air pressure switch pressure tap Basic position Pos. A as basic position 45° Pos. A 3 additional adhesive attachment flanges on burner feet 90° Pos. A 3 additional adhesive attachment flanges on burner feet 135°...
Servicing Fan wheel setting EKEVO 6/7 Because of its design the turbine can be fitted to the drive shaft only in a fixed position. The same position is consequently ensured every time it is assembled. There is no need for any further adjustment of the axial cover through the air conveyor.
Servicing Exhaust gas measurements Exhaust gas measurement the permissible smoke spot number in the Gas temperature 15 °C In order to ensure efficient and fault-free exhaust gas must not be exceeded. Standard pressure 1013 mbar operation, the burner must be adjusted with Calculating the volumetric flow rate for reference to the specific system.
Servicing Exhaust gas measurements Diagnosing and remedying faults Exhaust gas loss Natural Town Exhaust gas loss by way of free heat will Fuel-oil EL Fuel-oil S Liquid gas occur as a result of the temperature difference between the fuel-air mixture 0.50 0.490 0.370...
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Servicing Diagnosing and remedying faults 8. Cleaning and lubricating 4. Nozzle - uneven 6. Combustion components - instructions atomisation poor combustion values Depending on the cleanliness status of heavy internal oil deposits the combustion air, the fan impeller, Cause Remedy or heavy coke deposits ignition electrodes, flame sensors and (fuel-oil mode)
Servicing Faults • According to DIN 4788, components If system faults occur, proceed with The start-up program will be initiated checking the basic conditions for with technical safety-related and should be carefully monitored. proper operation of the system. functions may not be repaired. On The possible cause of the fault may be the other hand, they may be quickly found by referring to the fault...
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