Bentone BENTOFLEX ST 146 B30A Technical specifications

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178 135 19-2 CR00664 2023-05-15

Installation- and maintenance instruction

ST 146 B30A

LMO24.255C2E

AS 47 CK

Translation of the original instructions.

2Bentone

example Beispielexempel

352011030141

Designation

Type

Model

Serial no.

Motor supply

Main supply

MADE IN SWEDEN BY

LIGHT OIL 35-90kW 1,25-6,0 cSt 7-14bar

BF 1 KS 76-24

BF 1

BF 1 KS 76-24

1234567

1~230V 1,0A 50Hz IP 20

Man.Year 2019

Cap. Min-Max

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3Bentone

Table of contents

1. General Information............................................................4

1.1 Delivery inspection........................................................................ 4

1.2 Safety ............................................................................................... 4

2. Technical data.......................................................................6

2.1 Dimensions ST 146 B30A ............................................................ 6

2.2 Workingeld.................................................................................. 7

2.3 Basic settings................................................................................. 7

2.5 Settingofignitionelectrodesand

brake plate...................................................................................... 8

2.4 Technicalspecication ................................................................. 8

2.6 Nozzleandpumppressure......................................................... 9

2.7 Nozzle table.................................................................................... 9

2.8 Components................................................................................. 10

3. Electric equipment.............................................................11

3.1 Safety system .............................................................................. 11

3.2 Wiringdiagram............................................................................ 11

3.3 Function ........................................................................................ 12

3.4 Colourcodes................................................................................ 13

3.5 Faultcodes ................................................................................... 13

4. Installation..........................................................................14

4.1 Generalinstructions................................................................... 14

4.2 Inspectionandmaintenance.................................................... 14

4.3 Start-up ......................................................................................... 14

4.4 Preparing for installation........................................................... 14

4.5 Oildistribution............................................................................. 14

4.6 Electrical connection .................................................................. 15

4.7 Mounting ...................................................................................... 16

5. Settings ...............................................................................17

5.1 Example of basic setting............................................................ 17

6. Pump ..................................................................................19

6.1 SUNTEC AS .................................................................................. 19

7. Service .................................................................................25

7.1 BurnerServiceSchedule,Oil .................................................... 25

7.2 Component replacement intervals.......................................... 25

7.3 Combustiondevice ..................................................................... 26

7.4 Replacing the preheater............................................................ 27

7.5 Replacingtheoilpump.............................................................. 28

7.6 Replacingthefanmotorandfanwheel................................. 29

7.7 Airintakeandintakecone......................................................... 30

7.8 Replacing the entire electrical package ................................. 30

7.9 Replacingindividualelectricalpackagecomponents ......... 31

8. Fault Location.....................................................................32

8.1 Burnerwillnotstart.................................................................... 32

8.2 Burnerwillnotstartafternormaluse .................................... 32

8.3 Delayedignition .......................................................................... 33

8.4 Noiseinpump ............................................................................. 33

8.5 Pumppressure ............................................................................ 34

9. Logofuegasanalysis.....................................................35

4Bentone

165 105 01-2 2021-12-07

1. 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.

This Installation and Maintenance manual:

• is to be regarded as part of the burner and must always be kept near

the installation site.

• must be read prior to installation.

• is intended for use by authorised personnel.

1.1 Delivery inspection

• Make sure everything is delivered and the goods have not been

damaged during transit.

Transport damage must be reported to the shipping company.

• If something is wrong with a delivery, report it to the supplier.

1.2 Safety

- before installation:

• Installation and work on the burner and associated system

components may only be carried out by persons who have undergone

relevant training.

• The product is packaged to prevent damage from occurring when

handled – Handle the product with care! Lifting equipment must be

used to lift larger packages.

• The products must be transported/stored on a level surface in a dry

environment, max. 80% relative humidity, no condensation.

Temperature -20 to +60 °C.

- installation:

• The burner must be installed in accordance with local regulations for

 re safety, electrical safety, and fuel distribution.

• The premises must comply with local regulations pertaining to use of

the burner, and must have adequate air supply.

• The installation site must be free of chemicals.

• Fire extinguisher with Class BE recommended.

• Make sure when installing the burner that there is enough space to

service the burner.

• The electrical installation must be professionally carried out in

accordance with current mains electricity regulations and in a

professional manner.

• 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.

5Bentone

• 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  rst start:

• The burner must not be put into operation without proper safety and

protection devices.

• Permitted ambient temperature during operation -10 to +60 °C. Max.

80% relative humidity, no condensation.

• The surface temperature of the burner’s components may exceed

60 °C.

• Handle with caution – the burner has moving parts, and there is risk

of crushing injuries.

• Seal inspections must be performed during installation and servicing

to prevent leakage.

•  tting and installation work has been completed and approved.

• electrical installation has been correctly performed.

•  ue gas ducts and combustion air ducts are not blocked.

• all actuators and control and safety devices are in working order and

correctly set.

• If the boiler is equipped with an access hatch, this must be equipped

with a hatch opening switch connected to the burner’s safety system.

• When in operation, the burner’s noise level can exceed 85 dBA – use

hearing protection!

- Operation:

• Carry out all stipulated settings, service and inspection work within

the set time.

• If the oil burner control has a solid red light, contact your installer.

6Bentone

165 205 30-3

2. 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:

• Fuel oil according to DIN 51603-1.

• Fuel oil A Bio 10 according to DIN 51603-6.

2.1 Dimensions ST 146 B30A

* Min. recommended distance to  oor.

2.1.1 Dimensions,  anges

øB

Ø B C D E F G H *I

109 237 202 54 258 158 295 200

Length of ﬂ ame

tube

Measurement A

Flange 1

163 140

263 240

10,5

145-172

ø109,5

Flange 1

7Bentone

2.1.2 Hole patten

Check that the hole pattern on the boiler is suitable for the xing ange.

0,5

0,0

0,5

1,0

1,5

2,0

2,5

50 60 70 80 90 100 110 120 130 140 150 160

mbar

5.0-13.3 kg/h

60-157 kW

160302-684

2.2 Working eld

d1 d2 d3

ø 110 10 ø 140-170

!Do not exceed the

working area.

2.3 Basic settings

50 60 70 80 90 100 110 120 130 140 150 160

160302-682-2

Air settings

Nozzle assembly

Scale

Burner output

8Bentone

ab c

7.5-9.5 2.0-3.0 3.0-4.0

!*NB It is important

that the spark does not

strike against the brake

plate or nozzle

2.5 Setting of ignition electrodes and

brake plate

ST 146 B30A

Main supply 1) 230V, 1~, 1.2/1.3A, 50/60Hz, IP20

Max fuse rating 6.3A

Elmin preheater excluded 0.74A, 165W

Elmax preheater excluded 0.81A, 190W

PSB 0

NOX-class 2

Noise level 78dBA

1) Max operating current, see data plate.

2.4 Technical specication

Measurements according to EN 15036-1:2006

Alt.1 The noise level of the burner can be reduced by equipping the burner

with silencer. Installation must be done so it does not prevent air supply

to the burner.

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

must be done so it does not prevent air supply to the burner.

9Bentone

2.6 Nozzle and pump pressure

Due to different furnace geometries and capacities, it is not possible to

recommend a nozzle model.

Nozzle 60° Solid/Hollow cone

80° Solid/Hollow conel

Pump pressure 10 bar (8–14 bar) Fuel oil 1

10 bar (7–12 bar) Kerosene

2.7 Nozzle table

Pump pressure, bar

Gph 89 10 11 12 13 14 15

kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW

0,40 1,33 16 1,41 17 1,49 18 1,56 18 1,63 19 1,70 20 1,76 21 1,82 21

0,50 1,66 20 1,76 21 1,86 22 1,95 23 2,04 24 2,12 25 2,20 26 2,28 27

0,60 2,00 24 2,12 25 2,23 26 2,34 28 2,45 29 2,55 30 2,64 31 2,73 32

0,65 2,16 26 2,29 27 2,42 29 2,54 30 2,65 31 2,75 33 2,86 34 2,96 35

0,75 2,49 29 2,65 31 2,79 33 2,93 35 3,08 36 3,18 38 3,30 39 3,42 40

0,85 2,83 33 3,00 36 3,16 37 3,32 39 3,47 41 3,61 43 3,74 44 3,87 46

1,00 3,33 39 3,53 42 3,72 44 3,90 46 4,08 48 4,24 50 4,40 52 4,56 54

1,10 3,66 43 3,88 46 4,09 48 4,29 51 4,48 53 4,67 55 4,84 57 5,01 59

1,20 3,99 47 4,24 50 4,47 53 4,68 55 4,89 58 5,09 60 5,29 63 5,47 65

1,25 4,16 49 4,40 52 4,65 55 4,88 58 5,10 60 5,30 63 5,51 65 5,70 68

1,35 4,49 53 4,76 56 5,02 59 5,27 62 5,50 65 5,73 68 5,95 70 6,15 73

1,50 4,98 59 5,29 63 5,58 66 5,85 69 6,11 72 6,36 75 6,60 78 6,83 81

1,65 5,49 65 5,82 69 6,14 73 6,44 76 6,73 80 7,00 83 7,27 86 7,52 89

1,75 5,82 69 6,18 73 6,51 77 6,83 81 7,14 85 7,42 88 7,71 91 7,97 94

2,00 6,65 79 7,06 84 7,45 88 7,81 93 8,18 97 8,49 101 8,81 104 9,12 108

2,25 7,49 89 7,94 94 8,38 99 8,78 104 9,18 109 9,55 113 9,91 117 10,26 122

The table applies to oils with a viscosity of 4.4 mm2/s (cSt) at a density of 830 kg/m3.

2.7.1 Burner with preheater

Allow for a reduction in oil quantity of 5–20% with preheating owing to:

• Temperature increases at the nozzle.

• Nozzle design.

• Capacity (the higher the capacity the lower the difference).

10 Bentone

2.8 Components

1. Reset button

2. Burner control

3. Ignition transformer

4. Ignition cables

5. Nozzle assembly

6. Nozzle

7. Brake plate

8. Flame tube

9. Ignition electrodes

10. Connecting pipe

11. Air damper

12. Solenoid valve

13. Pump

14. Drive coupling

15. Indication, air damper

16. Fan wheel

17. Adjustment, air damper

18. Flame detector

19. Motor

1 2 3 4 5 6 7

1417 151619 18

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