Nu-Way MOL795 T3L 273 2H Installation And Maintenance Manual

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Installation and Maintenance Manual
MOL795 T3L 273 2H
LMO24.255C2E
AJ 4 CC
Translation of the original instructions.
Keep for future use.
Read carefully before use.
178 079 66-6 CR00937 2024-12-02

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Summary of Contents for Nu-Way MOL795 T3L 273 2H

  • Page 1 Installation and Maintenance Manual MOL795 T3L 273 2H LMO24.255C2E AJ 4 CC Translation of the original instructions. Keep for future use. Read carefully before use. 178 079 66-6 CR00937 2024-12-02...
  • Page 2 BENTONE 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.
  • Page 3: Table Of Contents

    BENTONE Table of contents General Information ............5 Delivery inspection................ 5 Safety ....................5 Technical data ...............7 Dimensions B 55-2H ..............7 Burner installation ................ 7 2.3 Working field .................. 8 Basic settings - Fuel oil ..............8 Basic settings - HVO/XTL ............9 2.6 Technical specification ..............
  • Page 5: General Information

    BENTONE 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 CTC in writing is strictly prohibited.
  • Page 6 BENTONE • 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. • Flame tubes, fan wheels and air dampers, for example, may contain sharp edges. - before first start: •...
  • Page 7: Technical Data

    BENTONE Technical data The burner is intended for: • Operation in installations according to EN 303 and EN 267. When operating with a hot air boiler, the LMO24.255 or LMO44.255 control unit must be used. Fuels: • HVO/XTL according to EN 15940. •...
  • Page 8: Working Field

    BENTONE Working field 13.0-67.5 kg/h 155-800 kW mbar Do not exceed working field. -1,0 Basic settings - Fuel oil Basic settings should only be seen as setting values to get burner to start. Once the burner has started and established flame, it is necessary to adjust the settings so that they are adapted to the installation and the fuel used.
  • Page 9: Basic Settings - Hvo/Xtl

    BENTONE Basic settings - HVO/XTL Setting Nozzle assembly Burner output Flame signal When operating at high power or low air excess and HVO/XTL is used as fuel, the flame signal may deteriorate (blue flame), the signal lamp in the reset button flashes green.
  • Page 10: Setting Of Ignition Electrodes And Brake Plate

    BENTONE Setting of ignition electrodes and brake plate 2.5-3.0 6.5-7.0 6.0-7.0 *NB It is important that the spark does not strike against the brake plate or nozzle. Nozzle and pump pressure Due to different furnace geometries and capacities, it is not possible to recommend a nozzle model.
  • Page 11: Nozzle Table

    BENTONE Nozzle table Pump pressure bar kg/h kg/h kg/h kg/h 1,00 4,40 4,56 4,71 4,85 1,10 4,84 5,01 5,18 5,34 1,20 5,29 5,47 5,65 5,82 1,25 5,51 5,70 5,89 6,07 1,35 5,95 6,15 6,36 6,55 1,50 6,60 6,83 7,06 7,27 1,65 7,27 7,52...
  • Page 12 BENTONE Pump pressure bar kg/h kg/h kg/h kg/h 1,00 4,99 5,13 5,26 5,40 1,10 5,49 5,64 5,79 5,93 1,20 5,99 6,16 6,32 6,47 1,25 6,24 6,41 6,58 6,74 1,35 6,74 6,93 7,11 7,28 1,50 7,48 7,69 7,89 8,08 1,65 8,24 8,47 8,69 8,90...
  • Page 13: 2.10 Components

    BENTONE 2.10 Components 21 20 Brake plate Switch I-0 Solenoid valve Stage 2 Nozzle Indicator lamp Stage 1 Nozzle assembly adjustment Ignition electrodes Cover, inspection glass Reset button Fixing flange Switch I-II Regulator, air damper Transformer Indicator lamp Stage 2 Flame tube Flame detector Fan wheel...
  • Page 14: Electric Equipment

    BENTONE 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 15: Function

    BENTONE 3.2.1 Components Burner control Operating switch Plug-in contact ”Euro”, burner Switch, High/Low load Plug-in contact ”Euro”, boiler Flame detector Plug-in contact ”Euro”, Operating fuse Regulating thermostat High/Low load, burner Operating fuse Temperature limiter Plug-in contact ”Euro”, Operating fuse Safety switch for hinged door High/Low load, boiler Lamp, Low load Regulating thermostat,...
  • Page 16: Colour Codes

    BENTONE Colour codes When the burner starts, three signal lights in the reset switch indicate the normal sequence, as well as provide indication if something abnormal is happening in accordance with the following table: Preheater in operation Solid yellow Ignition switched on Flashing yellow Normal operation Solid green...
  • Page 17: Installation

    BENTONE Installation General instructions Oil burners must be installed in accordance with local regulations. The installer must therefore be knowledgeable of the regulations pertaining to oil and combustion. Only oil suitable for the burner must be used and then in combination with a suitable oil filter installed before the burner’s oil pump.
  • Page 18: Electrical Connection

    BENTONE Electrical connection • Before work on the electrical connection, the current must be disconnected so that the installation is isolated. • Electrical connection must be done in accordance with the applicable regulations. • Burners must be connected to an all-pole switch. •...
  • Page 19: Handling And Lifting Instruction

    BENTONE Handling and lifting instruction The lifting aid are available as accessories.
  • Page 20: Mounting

    BENTONE Mounting Remove fan housing from fixing flange by loosening nuts (F) and end stop (T) for guides. Install the selected nozzle, (see Technical data). Remove the flame tube from the fixing flange by loosening screws (U). Install the fixing flange with the enclosed gasket (V) to the boiler. Install the flame tube, be sure to install the drainage hole downwards (not available on all flame tubes) so that any oil spills can drain out.
  • Page 21: Example Of Basic Settings

    BENTONE Example of Basic settings Basic settings should only be seen as setting values to get burner to start. Once the burner has started and established flame, it is necessary to adjust the settings so that they are adapted to the installation and the fuel used. B 55-2H Burner output: 627 kW...
  • Page 22: Nozzle Assembly Adjustment

    BENTONE Nozzle assembly adjustment The position of the brake plate must be adjusted to achieve the most favorable pressure drop across the brake plate. Nozzle assembly adjustment should be changed for Stage 2 output. Set the desired position on the scale, using the adjusting screw (B) (left- hand turn reduces the pressure drop, the brake plate is moved outwards).
  • Page 23: Pump Suntec Aj

    Nozzle pressure range B : 7 - 15 bars BENTONE Operating viscosity Pump Suntec AJ 2 - 75 mm²/s (cSt) for AJ4, AJ6 1,25 - 75 mm²/s (cSt) for AJV4K, AJV6K Oil temperature 0 - 60°C in the pump. Technical Data Suction height 0,45 bars max.
  • Page 24 BENTONE Pump operating principle The gear set draws oil from the tank through the built-in filter and transfers it to the valve that regulates the oil pressure to the nozzle line. All oil that does not go through the nozzle line will be by-passed though the valve back to the return line in two pipe installation or, if it is a one-pipe installation, back to the suction port in the gear-set;...
  • Page 25: Suction Line Tables

    BENTONE Suction line tables Nozzle/Düse Gicleur/Ugello One pipe siphon feed system (US GPH) Einstranginstallation - Tank höher als Pumpe Installation monotube en charge d (mm) Impianti monotubo a sifone H (m) E max. = 20 m (E-H) max. = 4,5 m Pump/Pumpe AJ 4 / J 4 / E 4 AJ 6 / J 6 / E 6...
  • Page 26: Check Oil Line Seals

    AJ/AJV BENTONE Check oil line seals Once the burner has been installed and commissioned, the seals of the various coupling elements should be checked. When a leak is detected, it is usually sufficient to tighten the coupling element that is leaking. Use caution when operating the burner, surfaces may be hot.
  • Page 27: Replacing The Gasket Seal (Pump)

    BENTONE Replacing the gasket seal (pump) Disconnect the main power and shut off the fuel supply. Before obtaining access to electrical and fuel line components AJ/AJV all supply circuits must be disconnected. Disconnect hoses, oil pipes, and electrical cables. Loosen the pump. Loosen the gasket seal’s locking rings. Remove the old gasket seal (3).
  • Page 28: Service

    BENTONE Service Service and maintenance work may only be performed by qualified personnel. Perform operational check of all safety systems and components at each service. Only CTC original parts should be used when replacing components. Use caution when operating the burner, surfaces may be hot. Burner Service Schedule, Oil Servicing must be carried out once a year or after 3,000 hours of operation.
  • Page 29: Combustion Device

    BENTONE 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 nuts (F) and pull out the fan housing from fixing flange. Remove brake plate from the oil pipe. Use caution when Replace nozzle.
  • Page 30: Air Damper

    BENTONE Air damper 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. Note the setting of the air damper and loosen the regulator locking screw (E). Loosen the screws (G) holding the fixing plate. Loosen the connecting pipe.
  • Page 31: Fan

    BENTONE 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. Detach the electrical panel (Y). 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 32: Replace Oil Pump

    BENTONE Replace oil pump Disconnect the main power and shut off the fuel supply. Use caution when Before obtaining access to electrical and fuel line components operating the burner, all supply circuits must be disconnected. surfaces may be hot. Disconnect oil lines from pump. When servicing oil Loosen screws (L) and pull out the oil pump. bearing components, Move/replace the pump coupling (N) over to the new pump.
  • Page 33: Tightness Check Of Solenoid Valves

    BENTONE Tightness check of solenoid valves 7.7.1 Burners with single solenoid valve • Disconnect the power supply to solenoid valves Y1, Y2 and Y3. • Run motor and pump - check that no oil is coming out of the nozzle, replace solenoid valve if necessary.
  • Page 34: Replacement Of Electrical Components

    BENTONE 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. Switch on the main power and check the operation of the new component.
  • Page 35: Vibrations

    BENTONE 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 rear cover screws to attach the vibration sensor.
  • Page 36: Fault Location

    BENTONE Fault Location Burner will not start Symptom Causes Remedies Unstable flame Motor starts Burner pre-ventilates Excess air Adjust the damper Low oil pressure Check the oil pressure Flame formed Check the nozzle in relation to the combustion apparatus Burner trips Incorrect combustion apparatus dimensions and the ignition settings...
  • Page 37: Burner Will Not Start After Normal Use

    BENTONE Burner will not start after normal use Symptom Causes Remedies Burner does not start Fuse blown Check and replace fuse as necessary. Investigate cause of Boiler thermostat has not reset fault Adjust thermostat Preheater does not get up to Check preheater function temperature Reset the overheating protection.
  • Page 38: Delayed Ignition

    BENTONE Delayed ignition Symptom Causes Remedies Burner pulsates at start with hot Excessively strong draught Correct boiler draught flue gases Excessive pressure drop across Adjust the burner the brake plate Preheater temperature too low Check preheater function New oil type Adjust the preheater‘s set operating temperature Ensure that the new oil‘s physical...
  • Page 39: Noise In Pump

    BENTONE Noise in pump Symptom Causes Remedies The burner pump emits noise Check the oil system in order to during start reduce pressure drop Insufficient negative pressure on Rebuild the oil system to form a the suction side pump solution with a transport oil pump The burner pump emits noise during operation Check that the oil used has the...
  • Page 40: Log Of Flue Gas Analysis

    Log of flue gas analysis Owner Adresss Tel. no: Installation Tel. no: Boiler Type Make Power kW Burner Type Model Serial no. Fuel Step 1 Step 2 Step 3 Draught in fireplace Fan Press mbar Filter smoke number Flue gas temp. °C Setting brake disc Setting Air damper Pump pressure...
  • Page 41: Eu Declaration Of Conformity

    EU Declaration of conformity Bentone Oil Burners Type: BF 1 ST 133 B 40 B 65 ST 108 ST 146 B 45 B 70 ST 120 B 30 B 55 B 80 This declaration of conformity is issued under the sole responsibility of the manufacturer. The object of the declaration described above is in conformity with: •...
  • Page 42 UK Declaration of conformity Bentone Oil Burners Type: BF 1 ST 133 B 40 B 65 ST 108 ST 146 B 45 B 70 ST 120 B 30 B 55 B 80 This declaration of conformity is issued under the sole responsibility of the manufacturer. The object of the declaration described above is in conformity with: •...
  • Page 44 CTC AB Box 309 SE-341 26 Ljungby info@bentone.se +46 372 88 000 www.bentone.se...

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