Related Manuals for Bentone LME21.550C2
Summary of Contents for Bentone LME21.550C2
- Page 1 CR00264 178 049 71-2 2021-06-07 Providing sustainable energy solutions worldwide Installation- and maintenance instruction BG 300 LME21.550C2 MB-DLE 407 Translation of the original instructions.
- Page 2 1~230V 1,0A 50Hz IP 20 Motor supply MADE IN SWEDEN BY 1. Manualer på övriga språk 1. Manuals in other languages 1. Manualer på andre sprog 2. www.bentone.com\ 2. www.bentone.com\download 2. www.bentone.com\download nedladdning or scan QR-code. eller scan QR-koden. eller scanna QR-koden.
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Page 3: Table Of Contents
6.5 Flow adjustment main valve V2 _____________________ 22 6.6 Skeleton diagrams _______________________________ 23 6.7 Recommended excess air when using default setting __ 25 6.8 Determining the gas quantity for the system __________ 25 6.9 Calculating the quantity of gas supplied _____________ 27 Bentone... -
Page 4: General Information
• Burner pipes, fan wheels and air dampers may contain sharp edges. • The surface temperature of the burner’s components can exceed 60 °C. • Caution: The burner has moving parts, and there is risk of crushing injuries. 172 515 01 2018-01-02 Bentone... - Page 5 Open windows and doors. Close the gas ball valve. Warn residents; do not use doorbells. Evacuate the building. Notify the installer or gas supplier once the building has been evacuated. Bentone...
- Page 6 Delivery check • Make sure everything is delivered and the goods have not been damaged during transit. • If something is wrong with a delivery, report it to the supplier. • Transport damage must be reported to the shipping company. Bentone...
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Page 7: Technical Data
Ø 120 Ø108 *380 *460 **200 BG 300 Ø 175-240 Ø 120 BG 300 * The above dimensions are max. measurements. Depending on the components used, the measurements may vary. **Min recommended distance to floor. 172 525 19-2 2021-04-22 Bentone... -
Page 8: Capacity Range
Natural gas 32.5 116.09 27728 Butane 24.6 88.00 21019 Propane Gas quantity and capacity vary according to grade of gas and connection pressure. 2.3 Gas categories, approved gases Only dry gas is permitted for use. 172 525 19-2 2021-04-22 /2 Bentone... -
Page 9: Working Field
Alt.2 The burner’s noise level can be reduced by connecting the burner’s air intake to the air duct that opens into an appropriate location. Installation 172 525 19-2 2021-04-22 /3 must be done so it does not prevent air supply to the burner. Bentone... -
Page 10: Description
Cover, inspection glass Air damper Motor Air pressure switch Air intake Ionization electrode Air adjustment Ignition electrode Transformer Inner assembly adjustment Control box Inner assembly Blast tube Reset button Nozzle Connecting pipe Fan wheel Brake plate 172 525 19-2 2021-04-22 /4 Bentone... -
Page 11: General Instructions
Adjust the burner to appr. 20% excess air in accordance with the table. Check the flue gas temperature. Calculate the efficiency. Check also the actual gas volume on the gas meter so that the correct input is achieved. 172 515 03-2 Bentone... -
Page 12: Installation
(see Basic settings). Note that it is only a basic setting which should be adjusted once the burner has been started. If an electric connection other than the one recommended by Enertech is used, a risk of damage and injury can arise. 172 515 03-2 Bentone... -
Page 13: Inspection Of Gas Nozzle Before Commissioning
At the end of the safety time (2-3 sec.) the gas control locks out. The solenoid valve and the motor will be "dead". Remove the link from the gas pressure switch after the test is finished. 172 515 07 2018-01-02 Bentone... -
Page 14: Gas Nozzle
4.7 Gas nozzle Natural gas Propane Biogas (UV detector) 172 515 07 2018-01-02 Bentone... -
Page 15: Setting The Burner
Loosen the nuts a. Swing out the burner. Remove the screw b and the knob for adjustment of burner head. Loosen the screw c so much so that the inner assembly can be pulled out. Control of burner head 172 515 09 Bentone... - Page 16 Gas quality max. CO lambda 1,2 Open the ball valve and switch on the main switch. If the Natural gas 10,0 4±1 11,9 burner starts the actual adjustment can be made. 11,5 4±1 13,9 172 515 09 Bentone...
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Page 17: Setting The Air Pressure Switch
This is to ensure the reliable function of the burner. If breakdowns or interruptions occur, the air pressure switch is probably set to a too narrow position. Fit the protective cover, screw (Y). 172 515 09 Bentone... -
Page 18: Setting The Min. Gas Pressure Switch
The tolerance on the scale for the min. gas pressure switch is approx. ±15%. Open the ball valve. Remove the pressure gauge and close the pressure outlet (X). Check the gas tightness. Fit the protective cover, screw (Y). 172 515 09 Bentone... -
Page 19: Skeleton Diagram Cpi
Gas pressure switch, maxi Main valve Safety valve Valve proving system Air pressure switch Electrical connection Solenoid V3 Pos. 5b, 7: Components not required according to EN 676. Required over 1200 kW according to EN 676. 172 525 15 2020-10-08 Bentone... -
Page 20: Multi-Bloc
(DIN EN 175 301-803 connector) (option) Outlet flange Test point connection G 1/8 upstream of V1, possible on both sides Test point connection M4 downstream of valve 2 Gas flow direction 172 525 14 2020-10-16 /1 Bentone... -
Page 21: Mounting Closed Position Indicator (Cpi)
Then rotate the setting screw by another scale division. Check function by activating the valve. Re-set switching point Turn setting screw C back in arrow direction ”–” to the stop; proceed as described in 7. 172 525 14 2020-10-16 /2 Bentone... -
Page 22: Adjustment Of Governor
At small capacities (gas flows) it is also necessary to adjust as above. Flow adjustment Adjustment of V2 damper e:under cap 172 525 14 2020-10-16 /3 Bentone... -
Page 23: Skeleton Diagrams
6.6 Skeleton diagrams 6.6.1 Multi-bloc MBD-LE..B07 Filter cover p Br 1,3,4,6 G 1/8 screw plug Test nipple (option) M4 screwed sealing plug p Br 5 3 4 6.6.2 Electritrical connection MBD-LE..B07 MB-D(LE) B07 S22 / S52 172 525 14 2020-10-16 /4 Bentone... - Page 24 E on the working diaphragm 26 of the regulator. In regulated state, setting spring inlet pressure and pressure of working diaphragm are in force equilibrium. The compensating diaphragm ensures the fast closing function of valve V1 and a high regulating quality. 172 525 14 2020-10-16 /5 Bentone...
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Page 25: Recommended Excess Air When Using Default Setting
Lower heat value Hu at normal state 15°C and 1013.25 mbar EN676 Grade of gas kWh/Nm MJ/Nm kcal/Nm Natural gas 34.02 8126 Natural gas 29.25 6986 Butane 32.5 116.09 27728 Propane 24.6 88.00 21019 Biogas 21,60 5159 172 515 13 Bentone... - Page 26 Temperature of gas at the gas meter [°C] Barometer reading [mbar] Pressure of gas at the gas meter [mbar] Factor calculated for multiplication with flow in Nm /h to arrive at actual flow in Nm Actual flow · 273+T 1013.25 Bentone...
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Page 27: Calculating The Quantity Of Gas Supplied
= Time for a certain quantity of gas consumed by the burner. M = Quantity of gas consumed. V = Actual gas flow Calculation example: t = 1 min 10 s M = 330 dm (litre) 0.33 m 1000 0.0194 h 3600 0,33 ≈ 17 m 0.0194 Bentone... -
Page 28: Service
Check the ionisation electrode (see chapter Gas nozzle). Replace if necessary. Fit the combustion assembly in reverse order. Press the burner together and lock using the nuts (B). Fit the Euro plugs and turn on the main power supply. Check/adjust the combustion. 172 615 01 2018-01-02 Bentone... -
Page 29: Servicing Air Dampers
Turn the damper and then lift up the damper and damper plate. Clean the air damper and intake. Lubricate the damper shaft, if so equipped. Refit the damper and damper plate. Adjust the damper before tightening the screws (d). Install the intake grille for the air intake. Check/adjust the combustion. Bentone... -
Page 30: Flame Monitoring And Ionisation Current Check
Required current to ensure detection Min. DC 3 µA Possible detection current Max. DC 20 µA Operational indicator lamp flashes green <5 µA DC Operational indicator lamp shines green >5 µA DC 7.3.1 Flame monitoring ionisation 172 615 02-2 Bentone... - Page 31 Max. current for flame detection Max. DC 5.5 µA Required current to ensure detection Min. DC 40 µA Possible detection current Max. DC 60 µA Operational indicator lamp flashes green <45 µA DC Operational indicator lamp shines green >45 µA DC Bentone...
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Page 32: Handing Over Of The Installation
• Is the circulation pump in operation? • Is there a supply of fresh air to the installation? • If integral components are of a different make from what is stated in this manual, see the enclosed loose-leaf. 172 615 04 Bentone... -
Page 33: Electric Equipment
Signals must be in different harnesses for safety reasons. Safety system as door switches, water level, pressure, temperature and other safety limiters must be installed in safety loop according to process. 172 615 76 2020-10-16 /1 Bentone... -
Page 34: Wiring Diagram Lme
10.1 Wiring diagram LME... 172 615 76 2020-10-16 /2 Bentone... -
Page 35: Function Lme
If the gas burner control is blocked Red light in the gas burner control is lit. The burner is restarted by pushing the reset button 10.2.1 Technical data LME21.130C2 LME21.550C2 Preiginition time Prepurge time 50 s Postignition time 2.5 s 4.5 s... -
Page 36: Control Program When Disruption
7.2.1.2 Limiting of starting repetitions LME ... has a function with start repetition if the flame is not created at start ord disappears during operation.. LME ... allows max. three repetitions during coninuous starting cycle 172 615 76 2020-10-16 /4 Bentone... - Page 37 3 s. To return to normal mode, hold the reset button depressed for more than 3 s. If the firing unit is in the alarm mode, it is reset by pressing the reset button 0.5...3 s. 172 615 76 2020-10-16 /5 Bentone...
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Page 38: Troubleshooting
Burner control faulty Replace Air pressure gauge incorrectly set or faulty Check the settings and reset, or replace No acknowledgement signal due to incorrect adjustment or Check the settings and realign. misalignment of the control motor cams. 172 615 06 2018-01-10 Bentone... - Page 39 Poor draught conditions. Check the chimney. Flue gas temperature too high. Boiler overloaded Decrease the gas volume, sweep the chimney if necessary. content too low. Choke the air supply. Check the boiler for any leakages. Choke the draught if too high. Bentone...
- Page 40 Flame at incorrect angle due to combustion head out of position. Check the combustion head and readjust. Condensation build up in boiler and chimney: Flue gas temperature too low or gas volume too low. Raise the flue gas temperature by increasing gas volume Insulate the chimney. Bentone...
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Page 41: General Instructions For Gasburners
12. General instructions for gasburners 12.3.1 Installation Follow standards and instructions applicable to the Check that the burner is adapted to the gas quality in installation of gas burners. question. Ensure that the electric installation is made in accordance Check that the input pressure of the gas is correct. with existing regulations. - Page 42 Service- and inspection card Installation Boiler Name: Type: Efficiency kW: Address: Burner Type: Efficiency kW: Installed by: Date: Date gas/h Governor Fluegas Ionisation Pressure Efficiency temp current Fire Chimney room Measu- rement Before After °C µ A mbar mbar Small Flame Large Flame...
- Page 48 Enertech AB. P.O Box 309, SE-341 26 Ljungby. www.bentone.com...