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Summary of Contents for Bentone STG 120/1
- Page 1 178 052 25-3 P93783 2022-11-23 Providing sustainable energy solutions worldwide Installation- and maintenance instruction STG 120/1 LME11.230C2E GB-LD 055 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\ 2. www.bentone.com\ nedladdning eller scanna download or scan QR-code. download eller scan QR-koden.
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Page 3: Table Of Contents
Startup ................... 21 Control of combustion .............. 21 Technical data ...............6 6.5 Setting the air pressure switch ..........22 Dimensions STG 120/1 ..............6 6.6 Setting the gas pressure switch, min........23 Capacity range ................7 Gas categories, approved gases ..........7 Gas valve MultiBloc BM771../GB-LD055 D01....24 2.4... -
Page 4: General Information
Make sure that the burner is suitable for the application (see Technical • Data). All components must be installed without being bent, twisted or • subjected to mechanical or thermal forces that affect components. 172 515 01-2 2021-10-05 Bentone... -
Page 5: What To Do If You Smell Gas
Prevent open fl ames or sparking, e.g. do not turn lights on or off, do • not use any electrical appliances or mobile phones. • Evacuate the building. Notify the installer or gas supplier of the problem so that it can be • rectifi ed. Bentone... -
Page 6: Technical Data
Operation in installations according to EN 303 and EN 676. • Fuels: Natural gas H, E, L, LL. • LPG, Butane and Propane. • Dimensions STG 120/1 ø B Flame tube Flame tube Length of flame tube measure A measure B ø89... -
Page 7: Capacity Range
Max. connection Min. connection Gas valve at min. power at max. power pressure pressure MultiBloc mbar mbar STG 120/1 G20 12 - 47 See data plate GB-LD 055 MBC 65 G25 12 - 47 MBC 120 G30 16 - 51 MB-DLE 403 MB-DLE 405 G31 16 - 51... -
Page 8: Technical Specification
Technical specification STG 120/1 Main supply 230V, 1~, 0.75/0.85A, 50/60Hz, IP20 Max fuse rating -class Noise level 74dBA Max operating current, see data plate. Measurements according to EN 15036-1:2006 Alt.1 The noise level of the burner can be reduced by equipping the burner with silencer. -
Page 9: Components
Air damper Transformer Motor Fixing fl ange Fan housing, front Electrical connection Gas valve (MultiBloc) Connection, gas valve Fan housing, rear Air pressure switch Gas pressure switch, min Ionisation electrode Gas nozzle Shielding wall, fan housing Brake plate Fan wheel Bentone... -
Page 10: Skeleton Diagrams
Gas pressure switch, mini Gas pressure switch, maxi Main valve Safety valve Valve proving system Air pressure switch Electrical connection Pos. 5b, 7: Components not required according to EN 676. Required over 1200 kW according to EN 676. 172 515 19 2018-01-08 Bentone... -
Page 11: Installation
Connection must be done in accordance with the applicable • regulations. • Connection must conform to the wiring diagram. If any electrical connection other than that recommended by Enertech is used, there is a risk of property damage and personal injury. 172 535 09-2 Bentone... -
Page 12: Electric Equipment
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. Wiring diagram Brown Blue Green Yellow Gn/Ye Green/Yellow Black Grey White Orange Violet 172 615 05-3 2022-09-15 Bentone... -
Page 13: Function Lme
Reset time after lockout < 1 s < 1 s Reaction time on fl ame failure < 1 s < 1 s Min. ionisation current at fl ame 5 µA 5 µA Max. ionisation current 20 µA 20 µA Bentone... - Page 14 Pause c:a 3 s Limiting of starting repetitions LME 11... has a function with start repetition if the flame is not created at start or disappears during operation.. LME 11... allows max. three repetitions during continuous starting cycle. Bentone...
- Page 15 To change to interface mode, press and hold the reset button longer than 3 s. To go back to the normal position, press and hold the reset button longer than 3 s. If the gas burner control is in the alarm position, it is reset by pressing the reset button 0.5...3 s. Bentone...
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Page 16: Mounting
Mount the fixing flange and the supplied gasket on the boiler. If new mounting holes must be drilled, use the fixing flange as a template and fasten with M8-M10 screws. Before obtaining access to electrical and fuel line components all supply circuits must be disconnected. 172 515 20-2 2022-09-07 Bentone... -
Page 17: Gas Nozzle
Gas nozzle Check that the ignition and ionization electrodes are correctly set before mounting on the boiler. Natural gas, LPG Natural gas Bentone... -
Page 18: Tightness Control
If leaks are found during measurement, locate the source using soapy water or leak detection spray. After sealing: check the tightness of the gas fixture again. Check the gas tightness. Bentone... -
Page 19: Calculation Of Gas Flow
Natural gas 34.02 Butan 32.25 116.09 Natural gas 29.25 Propan 24.44 88.00 Lower calorific value H at normal conditions 15 °C and 1013 mbar, EN 676. For exact calorific value of the gas, contact the gas distributor. 172 535 28 Bentone... -
Page 20: Settings
Turn the screw in the desired direction with an allen key. Turn screw to the left to reduce opening. • Turn screw to the right to increase opening. • Nozzle assembly Air setting adjustment 172 515 22-2 Bentone... -
Page 21: Startup
Max % CO Gas quality % CO Lambda 1.2 ≈10 Natural gas 3 - 5 11.9 ≈11.5 Propane 3 - 5 13.9 ≈11.5 Butane 3 - 5 14.1 Liquefied ≈11 3 - 5 13.8 petroleum gas Biogas 3 - 5 Bentone... -
Page 22: Setting The Air Pressure Switch
Measure and note the lowest air pressure in the entire work area. Set the air pressure switch to about 10-15% lower than the lowest noted pressure. Test run the burner and check the function in the entire work area. Refi t protective cover. Bentone... -
Page 23: Setting The Gas Pressure Switch, Min
When the gas pressure switch stops the burner, the measured value must approximately correspond to the setting on the gas pressure switch. Open ball valve. Remove manometer and close measuring socket. Refi t protective cover. Check gas tightness. Bentone... -
Page 24: Gas Valve Multibloc Bm771
Test nipple for burner pressure Main flow restrictor Gas pressure switch min. Electrical connection, gas pressure switch Alt. test nipple for supply pressure (after the filter) Screws for cover Adjustment of governor Screws for gas pressure switch and coil 172 515 46 2018-01-24 Bentone... -
Page 25: Adjustment Of Gas Valve
Attach the gas pressure switch by means of the two screws (12). • 7.3.1 Important When changing gas pressure switches, inspecting filters and so on, see to it that O-rings and gaskets are in the correct position and that a leakage test is made after each operation. Bentone... -
Page 26: Service
Replacement upon fault detection Gas pressure switch 10 years 250,000 starts Safety blow-off system 10 years Damper motor 500,000 starts Contactor 10 years 500,000 starts The burner and its components must be recycled according to applicable regulations. 172 615 88-2 2022-09-08 Bentone... -
Page 27: Combustion Device
Turn on the main power and open the fuel supply. Start burner and check/adjust combustion. Check for leaks in the gas line. When servicing/replacing components that aff ect combustion, fl ue gas analysis and soot test shall be carried out on the installation. 172 615 90-2 Bentone... -
Page 28: Fan Motor And Fan Wheel
Turn on the main power and open the fuel supply. Start burner and check/adjust combustion. When servicing/replacing components that aff ect combustion, fl ue gas analysis and soot test shall be carried out on the installation. 172 615 96-2 Bentone... -
Page 29: Air Intake And Suction Cone
Turn on the main power and open the fuel supply. Start burner and check/adjust combustion. Check for leaks in the gas line. When servicing/replacing components that aff ect combustion, fl ue gas analysis and soot test shall be carried out on the installation. 172 615 97 Bentone... -
Page 30: Replacement Of Electrical Components
Switch on the main power and check the operation of the new component. Start burner and check/adjust combustion. When servicing/replacing components that affect combustion, flue gas analysis and soot test must be carried out following installation. 165 105 11-3 Bentone... -
Page 31: Vibrations
• 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 screw to attach the vibration sensor. 172 615 98 Bentone... -
Page 32: Control Of Flame Monitoring And Ionization Current
Required current to ensure detection Min. DC 3 µA Possible detection current Max. DC 20 µA Operational indicator lamp flashes green <5 µA DC >5 µA DC Operational indicator lamp shines green 8.8.1 Flame monitoring ionisation 172 615 02-3 Bentone... - Page 33 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 >45 µA DC Operational indicator lamp shines green Bentone...
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Page 34: Handing Over Of The Installation
Instruct the persons in charge of the operation on the service and • maintenance of the installation and what to do should any troubles occur. Inspection and service must be carried out by authorized personnel. • Review and service should be performed by authorised personnel only. 172 615 04-2 Bentone... -
Page 35: 10. Troubleshooting
Voltage lower than 185V. Contact an electrician. Ignition electrodes disrupting ionisation current. Adjust ignition electrodes. Re-polarise the transformer. Poor earth connection. Ensure adequate earth connection. Phase and neutral swapped around. Check wiring diagram and change accordingly. 172 615 06 2018-01-10 Bentone... - Page 36 Flame at incorrect angle due to combustion head out of Check the combustion head and readjust. position. Condensation build up in boiler and chimney: Raise the flue gas temperature by increasing gas volume Insulate Flue gas temperature too low or gas volume too low. the chimney. Bentone...
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Page 37: 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 40 Enertech AB. P.O Box 309, SE-341 26 Ljungby www.bentone.com...
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