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Summary of Contents for Nu-Way MGN190 S1L 125
- Page 1 178 034 71-8 P93783 2023-04-11 Providing sustainable energy solutions worldwide Installation- and maintenance instruction MGN190 S1L 125 LME11.230C2E MB-DLE 407 Translation of the original instructions.
- Page 2 exempel example Beispiel 352011030141 Serial no. 1234567 Man.Year 2019 Designation BF 1 KS 76-24 BF 1 Type BF 1 KS 76-24 Model Cap. Min-Max LIGHT OIL 35-90kW 1,25-6,0 cSt 7-14bar Main supply 1~230V 1,0A 50Hz IP 20 Motor supply MADE IN SWEDEN BY 1.
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Page 3: Table Of Contents
Table of contents General Information ............4 Settings ................20 Delivery inspection................ 4 Air adjustment ................20 Safety ....................4 Brake plate adjustment ............. 20 What to do if you smell gas ............5 Control of burner head .............. 20 Startup ................... 21 Technical data ...............6 Control of combustion .............. -
Page 4: General Information
General Information The burner may only be used for its intended purpose in accordance with the product’s technical data. We reserve the right to make design changes and cannot be held liable for any misprints or typographical errors. Modifying the design or using accessories or components that have not been approved by Enertech in writing is strictly prohibited. -
Page 5: What To Do If You Smell Gas
• Care must be taken by the installer to ensure that no electrical cables or fuel lines are pinched or otherwise damaged during installation or service. Sharp edges can occur on, for example: fl ame tube, fan wheel and air •... -
Page 6: Technical Data
Technical data The burner is intended for: Operation in installations according to EN 303 and EN 676. • Fuels: Natural gas H, E, L, LL. • LPG, Butane and Propane. • Dimensions BG 300 Ø B ØC Length of Burner tube Burner tube Burner tube burner tube... -
Page 7: Capacity Range
Capacity range Capacity Gas quantity Gas quantity Max. at min. power at max. power connection connection pressure mbar pressure mbar BG 300 G20 50 - 200 21.2 See data plate. G25 50 - 170 20.9 G30 65 - 200 G31 50 - 200 Gas quantity and capacity vary according to grade of gas and connection pressure. Gas categori es, approved gases Only dry gas is permitted for use. -
Page 8: Working Field
Working field G20 50-200 kW mbar G25 50-170 kW Do not exceed working field. G30 65-200 kW mbar G31 50-200 kW Bentone... -
Page 9: Components
Components Cover, inspection glass Air damper Motor Air pressure switch Air intake Ionization electrode Air adjustment Ignition electrode Transformer Inner assembly adjustment Burner control Inner assembly Flame tube Reset button Nozzle Connecting pipe Brake plate Fan wheel Bentone... -
Page 10: Skeleton Diagrams, 1-Stage Burner
Skeleton diagrams, 1-stage burner Ball valve Filter Pressure regulator Pressure gauge with shut-off cock Gas pressure switch, Min. Gas pressure switch, Max. Main valve Safety valve Leakage control Air pressure switch Burner control Pos. 5b, 7: Components not required according to EN 676. Required over 1200 kW according to EN 676. -
Page 11: Electric Equipment
Electric equipment Safety system The safety system (safety switch for hatches, doors, water level, pressure, temperature and other safety devices) must be installed in the safety circuit in accordance with current regulations for the system. The cables of the safety system must be separated so that the outgoing signal is not placed in the same cable as the incoming signal. -
Page 12: Function Lme
3.2.1 Components Burner control Air pressure switch Gas pressure switch Power control Ionization electrode Ignition transformer Operating fuse Connection terminal board Operating lamp Earth terminal Motor Solenoid valve 1 Control thermostat Function LME... Operating switch ON-Thermostat ON-Gas pressure switch ON Mains connection and fuse in accordance with local A check that the air pressure switch does not indicate fan pressure is... - Page 13 3.3.2 Control program at faults; fault mode indicator LME ..Colour codes Table colour codes for multi-coloured signal light (LED) Status Colour codes Colours ○………………… Waiting period «tw», other waiting periods ●○●○●○●○●○● Blinking yellow Ignition phase, ignition controlled □………………… Normal operation Green □○□○□○□○□○...
- Page 14 Alarm code table Red blinking code on Possible causes signal lamp (LED) Blinking 2 x No flame creation at End of “TSA” – defective or fouled flame monitoring. •• – defective or fouled fuel valves. – poor burner setting. – defective firing device. Blinking 3 x “LP”...
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Page 15: Installation
Installation General instructions Installation must be carried out in accordance with current regulations and instructions. The supplier/installer of the facility is obliged to familiarize himself with all regulations so that the installation meets the requirements of the local authorities. Installation, assembly and settings must be performed to obtain the best possible function. -
Page 16: Mounting
Mounting The burner is mounted on the boiler according to the hole pattern on the fixing flange. Remove the gas valve from the burner. Remove fan housing by loosening nut (A), swing out fan housing. Disconnect ionisation and ignition cables from the electrodes. Remove nut (B) on hinged flange and lift fan housing off. -
Page 17: Gas Nozzle
Gas nozzle Check that the ignition and ionization electrodes are correctly set before mounting on the boiler. Propan Natural gas Biogas (UV detector) 172 515 08-2 2022-11-28 Bentone... -
Page 18: Tightness Control
De-aerating De-aerating the gas line by closing the tap to the gas connection and unscrewing the screw on the measuring nipple for the connection pressure. Connect a plastic hose, open the tap and drain the gas in a safe place. When the de-aerating is completed, be sure to refit the screw on the measuring nipple. -
Page 19: Calculation Of Gas Flow
Calculation of gas flow Formula symbol Description Example values Standard gas volume [Nm3/h] Gas volume at normal condition 15 °C 1013 mbar Boiler output [kW] 140 kW Lower calorific value of gas [kWh/m 9.45 kWh/m Natural gas under normal conditions 15 °C 1013 mbar, EN 676 η... -
Page 20: Settings
Settings Air adjustment Loosen the stop screw and turn the knob along the scale to the desired position and tighten the screw. Check the air adjustment by making a flue gas analysis. Brake plate adjustment The position of the brake plate must be adjusted to achieve the most favorable pressure drop across the brake plate. -
Page 21: Startup
Startup After the burner has been mounted on the boiler and the electrical connection, de-aeration and tightness control have been performed, the burner is ready to start-up. Read the sections dealing with settings of gas valve, damper motor and combustion device before start-up. Open the ball valve and turn on the main switch, start the burner and begin setting up the system. -
Page 22: Setting The Air Pressure Switch
Setting the air pressure switch Setting the air pressure switch The air pressure switch must block the burner if the amount of air for combustion becomes too low. The air pressure switch must be set so that in the event of a lack of air supply at the burner’s max. or min. capacity reacts before the monitored pressure drops so much that poor combustion occurs. -
Page 23: Setting The Gas Pressure Switch Min
Setting the gas pressure switch min Setting the gas pressure switch, min. The gas pressure switch must react to too low a connection pressure to the burner, prevent the burner from starting and stop the burner during operation. The burner may start again when the connection pressure has risen above the set pressure on the gas pressure switch. -
Page 24: Gas Valve Multibloc Dle 405 - 412
Gas valve MultiBloc DLE 405 - 412 Max. inlet pressure: 360 mbar. Adjustable governor pressure: 405 - 412 S50 = 4 - 50 mbar Solenoid valve: Slow opening valves with adjustable start load and max. fl ow. All gasline components shall be assembled and mounted without bending, torque and... - Page 25 Flow adjustment Loosen the fixing screw (a), turn the hydraulic device (b): to the right = the gas flow is reduced • to the left = the gas flow is increased • Do not forget to tighten the fixing screw. The flow adjustment can also be made by means of the governor.
- Page 26 Pressure taps 1, 3, 4, 5 Screwed sealing plug G 1/8 2 Measuring nozzles Electrical connection S 20/S 50 Bentone...
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Page 27: Service
Service Service and maintenance work may only be performed by qualifi ed personnel. Perform operational check of all safety systems and components at each service. Only Enertech original parts should be used when replacing components. Use caution when operating the burner, surfaces may be hot. Burner Service Schedule, Gas Servicing must be carried out once a year or after 3,000 hours of operation. -
Page 28: Combustion Device
Combustion device Disconnect the main power and shut off the fuel supply. Before obtaining access to electrical and fuel line components all supply circuits must be disconnected. Loosen screws (A) and swing the burner out. Disconnect the ignition and ionisation cables. Check the position of the combustion device. -
Page 29: Replacement, Damper Motor Air
Replacement, Damper motor air Disconnect the main power and shut off the fuel supply. Before obtaining access to electrical and fuel line components all supply circuits must be disconnected. Remove the intake grille at the air intake. Remove the screws (d) holding the damper plate and screw (e) that secures the damper. -
Page 30: Fan
Disconnect the main power and shut off the fuel supply. Before obtaining access to electrical and fuel line components all supply circuits must be disconnected. Loosen the motor electrical connection and screws (X) enough to turn and lift out the motor. Check the fan wheel attachment and any skew, replace if damaged. -
Page 31: Replacement Of Electrical Components
Replacement of electrical components Disconnect the main power and switch off the fuel supply. Before obtaining access to terminals, all supply circuits must be disconnected. Note the connection of the existing component and disassemble. Fit new component with same connection or with specified alternative connection. -
Page 32: Vibrations
Vibrations Maximum permitted vibration level is 5.0 mm/s. • Check tightness of fasteners. Check fan wheel for damage and contamination (replace if necessary). • Check motor shaft and bearings. If they are worn, replace the motor. • Use the screw on the cover to attach the vibration sensor. -
Page 33: Control Of Flame Monitoring And Ionization Current
Control of flame monitoring and ionization current The burner is monitored in the standard version according to the ionization principle. The ionization current must be checked at each service occasion. The ionization current is measured with a microampermeter (µA) which is connected in series with the flame electrode and the gas burner control. - Page 34 8.8.2 UV –detector (QRC) The UV sensor should not be exposed to temperatures higher than 60 °C. The current passing through the UV sensor when it is lighted must be at least 70 µA. The current can be measured using a rotary coil instrument. A check is necessary only if a malfunction is suspected.
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Page 35: Handing Over Of The Installation
Handing over of the installation Make repeated start attempts to ensure that the adjustments • function. Close the ball valve during operation to check that the gas switch • switches off at the set value. Remove the hose for the air pressure switch to check that the burner •... -
Page 36: 10. Troubleshooting
10. Troubleshooting Conditions favourable to trouble-free operation of the system can only be guaranteed through the interaction between three factors: electricity, gas flow and combustion air. If any of these factors change, it may cause a malfunction. Before requesting servicing, check the following points: Are the system’s gas taps open? Are the fuses intact and is the power on? Are control devices (room thermostat, boiler thermostat, etc.) correctly set? - Page 37 Cause of fault Action Burner trips during pre-aeration: Air sensor faulty or incorrectly set. Increase/decrease air setting. Reduce air volume. Increase/decrease gas supply Reduce airflow. Ignition load incorrectly set. Increase pressure. If necessary, contact gas supplier. Gas pressure too low. Pulsations at start-up: Adjust .
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Page 38: 11. Service- And Inspection Protocol
11. Service- and inspection protocol Installation Boiler Efficiency kW: Name: Type: Address: Burner Efficiency kW: Type: Installed by: Date: Date gas/h Efficiency Governor Fluegas Ionisation Pressure temp current Fire Chimney room Measure- °C µ A ment Before After mbar mbar Small Flame Large Flame... -
Page 39: Eu Declaration Of Conformity
EU Declaration of conformity Bentone Gas Burners Certifi cate No. Certifi cate No. Type: Type: BFG 1 CE-0123CT1269 BG 550 CE-0123CT1326 STG 120 CE-0123CT1270 BG 650 CE-0123CT1348 STG 146 CE-0123CT1281 BG 700 CE-0123CT1359 BG 300 CE-0123CT1292 BG 800 CE-0123CT1360 BG 400 CE-0123CT1304 BG 950 CE-0123CT1371... - Page 40 UK Declaration of conformity Bentone Gas Burners Type: BFG 1 BG 300 BG 550 BG 800 STG 120 BG 400 BG 650 BG 950 STG 146 BG 450 BG 700 This declaration of conformity is issued under the sole responsibility of the manufacturer. The object of the declaration described above is in conformity with: •...
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