Enertech Bentone B 2 Series Technical specifications

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178 032 32-2 2016-05–19
Installation- and maintenance instruction
B 2

3Bentone B 2
General
Table of contents
GENERAL 3
Important to think about!_____________________________________________4
Safety instructions______________________________________________________4
Warning ____________________________________________________________________4
Electrical safety __________________________________________________________5
Assembly and Service_________________________________________________5
Condensation in the flue______________________________________________5
Measures to increase the temperature__________________________5
Adjusting the burner ___________________________________________________5
1. TECHNICAL DATA _________________________________________________ 6
1.1 Dimensions B 2 _____________________________ 6
1.1.1 Dimensions flanges _______________________ 6
1.1.2 Recommended nozzles and pressures_______ 6
1.2 Model B 2 KA / Model B 2 KAV________________ 7
1.2.1 Burner output ____________________________ 7
1.2.2 Setting the ignition electrodes ______________ 7
1.3 Model B 2 KS 76/24 / Model B 2 KSV 76/24 ____ 8
1.3.1 Burner output ____________________________ 8
1.3.2 Setting the ignition electrodes ______________ 8
1.4 Nozzle table, 8–15 bar _______________________ 9
1.4.1 Burner with preheater _____________________ 9
1.5 Description ________________________________ 10
1.5.1 Components____________________________ 11
2. INSTALLATION_____________________________________________________ 12
2.1 Acceptance inspection ______________________ 12
2.2 Preparations for installation __________________ 12
2.3 Distribution of oil ___________________________ 12
2.4 Electrical connections _______________________ 12
2.5 Choice of nozzle ___________________________ 12
2.6 Setting of the brake plate and air flow__________ 12
3. BASIC SETTINGS________________________________________________ 13
3.1 Burner output without preheater B 2 KA / B 2 KS 13
3.1.1.1 Adjustment of the nozzle assembly________________ 13
3.1.1.2 Air adjustment _________________________________ 13
3.1.1.3 Pressure in front of the brake plate ________________ 13
3.2 Burner output with preheater B 2 KAV / B 2 KSV 14
3.2.1.1 Adjustment of the nozzle assembly________________ 14
3.2.1.2 Air adjustment _________________________________ 14
3.2.1.3 Pressure in front of the brake plate ________________ 14
4. BURNER SERVICING__________________________________________ 15
4.1 Cleaning the fan wheel ______________________ 15
4.2 Trimming__________________________________ 15
4.3 Automatic air damper _______________________ 15
4.4 Suspension of burner _______________________ 16
4.5 Removing the blast tube_____________________ 16
4.6 Brake plate ________________________________ 16
4.7 Rubber cable ______________________________ 16
4.8 Service position electric package _____________ 17
4.9 Pump filter ________________________________ 17
5. PUMP INSTRUCTIONS_______________________________________ 18
5.1 Suntec AS47CK____________________________ 18
5.1.1 Technical data __________________________ 18
5.1.2 Components____________________________ 18
5.1.3 Filter replacement________________________ 18
5.1.4 One-pipe system ________________________ 18
5.1.5 Function AS47CK _______________________ 19
5.1.6 Suction pipe tables AS47CK ______________ 20
5.1.6.1 Overhead Tank_________________________________ 20
5.1.6.2 Underlying Tank ________________________________ 20
5.2 Danfoss BFP41L3 __________________________ 21
5.2.1 Technical data __________________________ 21
5.2.2 Components____________________________ 21
5.2.3 Venting ________________________________ 21
5.2.4 Changing cartridge filter __________________ 21
5.2.5 BFP41L3 operating principle ______________ 22
5.2.6 Suction pipe tables BFP41L3______________ 23
5.2.6.1 Overhead Tank_________________________________ 23
5.2.6.2 Underlying Tank ________________________________ 23
6. PREHEATER ________________________________________________________ 24
7. ELECTRIC EQUIPMENT LMO1..2..4.. _______________ 25
7.1 Wiring diagram_____________________________ 25
7.1.1 List of components ______________________ 26
7.1.2 Function LMO1..2..4.. ____________________ 26
7.1.3 Technical data __________________________ 27
7.1.4 Colour codes LMO14/24 _________________ 28
7.1.5 Fault codes LMO14/24 ___________________ 28
8. FAULT LOCATION _______________________________________________ 29
8.1 Burner will not start _________________________ 29
8.2 Burner will not start after normal use __________ 29
8.3 Delayed ignition, burner starts; pulsation _______ 29
9. DECLARATION OF CONFORMITY ____________________ 30
10. OIL BURNERS MAINTENANCE INSTRUCTIONS
31

4Bentone B 2
General
Important to think about!
Read this manual
• This manual should be taken into account by all who, for whatever
reason, work with the apparatus and associated system parts.
• This manual is aimed specifically at authorized personnel.
• This manual should be viewed as a part of the burner and should
always be kept
close to the installation site.
• Enertech recommends that the burner be shut down when the oil tank
is filled, and for six hours thereafter, to reduce the risk of blockages.
Safety instructions
The electrical installation must be carried out according to the high voltage
provisions and be performed in a professional manner, so that the risk of oil
leakage, fire or personal injury is avoided
Warning
• The manual must be read before installation and start-up.
• This manual should be followed by anyone who for any reason performs
work on the installation or its component parts.
• The manual is to be considered as part of the burner and must always
be kept in the vicinity of the installation site.
• Ensure that the fresh air inlet to the room where the burner is located is
always open.
• The burner may only be installed by authorized personnel.
• Check that the burner is suitable for the boiler type.
• The burner must be installed in accordance with local legislation
regarding electrical safety and fuel supply.
• The burner is designed for oil viscosities ranged between 1.2 and 8.0
cSt at 20°C.
• The burner must be protected by at most a 10 A fast-blow or 6.3 A
slow-blow fuse.
• No burner safety system may be disconnected.
• The installation engineer must ensure that the boiler room is supplied
with sufficient fresh air in accordance with local standards.
• Cut the power and shut-off the fuel supply before performing service.
• Enertech recommends that the burner be shut down when the oil tank
is filled, and for six hours thereafter, to reduce the risk of blockages.
• The external temperature of the burner’s component parts may exceed
60°C.
• Ensure that the burner is protected from water spills, as its design will
not withstand such.
• Oil filters should be used.
• Only use spare parts recommended by Enertech.
Warning
!

5Bentone B 2
General
Warning
!
Electrical safety
• If any electrical connections are made other than those recommended
by Enertech, there is a risk of personal injury and equipment damage.
• The electrical installation must be carried out according to the high
voltage provisions and be performed in a professional manner, so that
the risk of oil leakage, fire or personal injury is avoided.
• The installation engineer must be especially careful to ensure that no
electrical wiring or oil lines are pinched or damaged during installation
or service
Assembly and Service
• If the boiler is equipped with an inspection hatch, the hatch should be
fitted with an interlock.
• Filters must be fitted to the oil supply line.
• Shut-off cocks must be fitted to the oil supply line.
• Oil lines must adhere to the current national standards of each respective
country.
Condensation in the flue
• A modern burner works with lower surplus air and also often with
smaller nozzles than older types. This raises efficiency but also
increases the risk of condensation in the flue. The risk increases if the
cross section of the flue channel is too great. Flue gas temperatures
should be above 60°C measured 0.5 m from the flue chimney.
• If the burner is used together with a condensing boiler, working
condensing, the installation must have a chimney that manages this
type of operating conditions.
Measures to increase the temperature
• Insulate the flue in cold loft space.
• Install an insert flue.
• Install a Dragex draught stabilizer or equivalent (which dries and entilates
the flue during shutdown periods).
Adjusting the burner
In order to achieve correct adjustment flue gas analysis and temperature
measurements must be carried out. Otherwise there is a risk of soot build-
up, poor efficiency or condensate precipitation in the flue.

6Bentone B 2
General
10,5
ø89,5
130-150
21
1. TECHNICAL DATA
1.1 Dimensions B 2
1.1.1 Dimensions flanges
1.1.2 Recommended nozzles and pressures
Because of the different types of boiler in existence, with varying furnace
geometries and furnace loads, it is not possible to commit to any given spray
angle or spay pattern. Note that spray angles and spray patterns change
with pump pressures.
Nozzle
60° Solid/Hollow cone
80° Solid/Hollow conel
Pump pressure
10 bar (8–14 bar) Light oil 1
10 bar (7–12 bar) Kerosene

7Bentone B 2
General
2,7-3,3
8,0-9,0
0,5-1,5
ø76
ø78
ø22
-
0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
20,0 40,0 60,0 80,0 100,0 120,0
Burner output kW
Boiler overpressure mbar
1.2 Model B 2 KA / Model B 2 KAV
1.2.1 Burner output
2,4 - 9,0 kg/h
28,5 - 106,7 kW
Length of blast tube
mm
Protrusion from flange,
measurement B mm
147 122
197 172
1.2.2 Setting the ignition electrodes
Proper setting of the electrodes is essential to ensure satisfactory operation
of the burner. If the spark hits the metal the efficiency will be lower and will
also cause radio disturbance. There is also a risk that carbonisation will
occur. Since the electrode pack is of the factory-set twin electrode type it will
be necessary to bend the wires to make any adjustment.

8Bentone B 2
General
Burner output kW
Boiler overpressure mbar
-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
40,0 60,0 80,0 100,0 120,0 140,0
2,3-3,1
10,0-11,0
0,5-1,5
ø76
ø73
ø24
1.3 Model B 2 KS 76/24 / Model B 2 KSV 76/24
1.3.1 Burner output
3,9 - 11,1 kg/h
46 - 131 kW
Length of blast tube
mm
Protrusion from flange,
measurement B mm
147 122
197 172
1.3.2 Setting the ignition electrodes
Proper setting of the electrodes is essential to ensure satisfactory operation
of the burner. If the spark hits the metal the efficiency will be lower and will
also cause radio disturbance. There is also a risk that carbonisation will
occur. Since the electrode pack is of the factory-set twin electrode type it will
be necessary to bend the wires to make any adjustment.

9Bentone B 2
General
1.4 Nozzle table, 8–15 bar
Pump pressure, bar
Gph 8 9 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
0,50 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
2,50 8,81 99 8,81 105 9,29 110 9,74 116 10,18 121 10,59 126 10,99 130 11,38 135
2,75 9,39 111 9,96 118 10,50 125 11,01 131 11,50 136 11,97 142 12,42 147 12,86 153
The table applies to oils with a viscosity of 4.4 mm2/s (cSt) at a density of 830 kg/m3(Light oil).
1.4.1 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 B 2
General
8910 11 12
16
15 14 13
1 2 3 4
5
7 6
1.5 Description

11Bentone B 2
General
17
18
1.5.1 Components
1. Brake plate
2. Preheater
3. Photoresistor
4. Electric contact X1,X2 (see wiring diagram)
5. Air damper
6. Oil pipe
7. Electrodes
8. Fan housing
9. Adjustment of nozzle assembly
10. Frame
11. Control box
12. Blast tube
13. Oil pump
14. Ignition transformer
15. Motor
16. Air adjustment
17. Fan wheel
18. Fan housing, part

12 Bentone B 2
General
!If another electrical connection is used than the one recommended by Bentone, there might be a risk of
material damage or personal injury.
2. INSTALLATION
2.1 Acceptance inspection
Ensure that everything is delivered and that there is no transport damage. If
there is anything wrong with the delivery, please report it to the supplier. Any
transport damage should be reported to the forwarding company.
2.2 Preparations for installation
Ensure that the size and capacity range of the burner are suitable for the
boiler. Power data on the data plate refer to the minimum and maximum
power of the burner.
2.3 Distribution of oil
To ensure satisfactory operation it is essential that the oil distribution system
is correct. Observe the following:
• See Pump instructions for choice of tube diameter, tube length and
height difference.
• Fix the tubing with a minimum number of screw fittings.
• Fix the tubes so that the oil hoses are not subjected to tensile stress or
sharp bending when swinging out the burner or removing it for service.
• Fit the oil filter so that the filter cartridge can easily be replaced, see Oil
filter Bentone.
2.4 Electrical connections
The main power switch must be turned off before beginning the electrical
installation. If the boiler has a 7-pole contact device type Eurostecker it will
most often fit the burner direct. Otherwise use the accompanying contact
device. The operating thermostat and maximum thermostat, and also any
fire-door switch, can then be connected in series with the incoming phase
or be connected between T1 and T2. In the first case T1 and T2 are to be
strapped.
2.5 Choice of nozzle
See under Technical Data: Recommended nozzle and table of nozzles.
2.6 Setting of the brake plate and air
flow
The burner is pre-set on delivery in relation to the nozzle provided. If the size
of the nozzle is changed the burner can be initially set according to “Basic
settings”. Note that it is only a question of a basic setting that should be
trimmed when the burner is started. This should include a fluegas analysis
and measurement of soot.

13Bentone B 2
General
Nozzle assembly, scaleAir, scale Pump pressure, bar
0
2
4
6
8
10
12
14
16
18
50 60 70 80 90 100 110 120 130
1
2
3
4
5
6
7
8
9
10
50 60 70 80 90 100 110 120 130
1
1,5
2
2,5
3
3,5
4
4,5
50 60 70 80 90 100 110 120 130
8
10
12
14
16
50 60 70 80 90 100 110 120 130
1,10gph 1,25gph 1,50gph 1,75gph 2,00gph 2,25gph
2,50gph
2,75gph
Burner output, kW
Fan pressure, mbar
Burner output, kW
Burner output, kW
Burner output, kW
3.1.1.1 Adjustment of the nozzle assembly
3.1.1.2 Air adjustment
3.1.1.3 Pressure in front of the brake plate
3. BASIC SETTINGS
Nozzle
3.1 Burner output without preheater B 2 KA / B 2 KS

14 Bentone B 2
General
Burner output, kW
Nozzle assembly, scaleAir, scale Pump pressure, bar
Fan pressure, mbar
0
2
4
6
8
10
12
14
16
18
50 60 70 80 90 100 110 120 130
1
2
3
4
5
6
7
8
9
10
50 60 70 80 90 100 110 120 130
1
1,5
2
2,5
3
3,5
4
4,5
50 60 70 80 90 100 110 120 130
8
10
12
14
16
50 60 70 80 90 100 110 120 130
1,10gph 1,25gph 1,50gph 1,75gph 2,00gph
2,25gph
2,50gph
2,75gph
Burner output, kW
Burner output, kW
Burner output, kW
3.2.1.1 Adjustment of the nozzle assembly
3.2.1.2 Air adjustment
3.2.1.3 Pressure in front of the brake plate
Nozzle
3.2 Burner output with preheater B 2 KAV / B 2 KSV

15Bentone B 2
General
4. BURNER SERVICING
4.1 Cleaning the fan wheel
The outer fan housing half is kept firm by 5 screws.
4.2 Trimming
If the size of the nozzle is changed, it is suitable to first set the nozzle
assembly and air according to the recommendations in section Basic
settings. For the individual boiler installation, adjustments can then always be
made to optimise economy, operational reliability and environmental effects.
The most important instruments for the task are one instrument for flue-gas
analysis and a soot meter.
The principle of the adjustment is:
• reduce the air, either with the air regulation or the nozzle assembly, until
a soot coefficient 0.5–1 is achieved.
• increase the air to give a safety margin of 0,5-1% CO2before soot
is created. To throttle more with the shrouded disc (smaller reading
on the nozzle assembly scale), gives a short, more bluish flame and
often better combustion, but if one goes too far there will be starting
problems. Throttling less with the shrouded disc gives a longer and
more yellowish flame and can give a smoother start.
The pressure in front of the shrouded disc can be utilised as an aid in the
adjusment. Recommended pressure, see under Basic settings. Remember
to refit the rubber gasket on the pressure outlet after making the adjustments.
4.3 Automatic air damper
Remove the blast tube. Unscrew the 3 screws holding the cover on the back
of the burner. Check that the air damper is moving easily.

16 Bentone B 2
General
4.4 Suspension of burner
During service the burner can be hung up on the screw in the burner
flange. For this there is a hole on the right side of the burner. The blast tube,
shrouded disc, nozzle and electrodes are then easily accessible.
4.5 Removing the blast tube
1. Loosen the two fastening screws one turn.
2. Turn to the right and withdraw the blast tube.
4.6 Brake plate
The preheater plug and the electrodes shall be placed on either side of the
oil tube. If there is a hole in the brake plate it shall be placed upwards to
increase the light towards the photoresistor.
4.7 Rubber cable
Check that the rubber cable inlet is properly fixed in order to avoid unneces-
sary air leakage.

17Bentone B 2
General
4.8 Service position electric package
Loosen the hexagon nut from the stud bolt. Pull the electric package
backwards and rotate it ca. 90° clockwise.
When required the electric package can be suspended in the cables.
4.9 Pump filter
When changing pump filter, see chapter 06.

18 Bentone B 2
General
8
9
1
4
6
3
5
2
10
7
5. PUMP INSTRUCTIONS
5.1 Suntec AS47CK
5.1.1 Technical data
Viscosity range: 1,0–12,0 mm2/s
Pressure range: 7–12 bar
Oil temperature: max. 60°C
5.1.2 Components
1. Solenoid valve
2. Nozzle connection G 1/8”
3. Vacuum manometer connection G 1/8”
4. Manometer connection G 1/8”
5. Filter
6. Suction line G 1/4”
7. Metal plug G 1/4”
8. Return plug
9. Return line G 1/4”
10. Pressure regulation
5.1.3 Filter replacement
Cut off the power and shut off the oil.
Remove the pump cover with the aid of a 4 mm Allen key. If necessary a
screwdriver may be used between the cover and the housing to carefully
pry the cover loose. Replace the old filter by a new one. Replace the cover,
tighten lightly.
Do not forget to replace the gasket.
Open the oil supply and switch on the power.
5.1.4 One-pipe system
Remove the return plug (8), plug the return line (9) with the metal plug (7) G 1/4”.

19Bentone B 2
General
Oil under suction
Oil under pressure
By-passed oil
returned to tank,
or to suction
Inlet
Shaft seal
Back to suction
Two pipe installationOne pipe installation
Return
Solenoid valve open Solenoid valve closed
To
nozzle
Vacuum
gauge port
Return plugged
By-pass
plug
inserted
By-pass plug
removed
Gear-set
Pressure
adjustment
Side
pressure
port Pressure
gauge
ports
5.1.5 Function AS47CK
Pump working method
The oil pump has a solenoid valve which regulates the closing of the oil flow
and provides a crisp function independent of pump rpm.
The pump’s gear wheels draw oil from the tank through the integral filter
and conveys the oil to the regulator valve which pressurizes the nozzle
connection.
The quantity of oil that does not go to the nozzle connection is led through the
valve back to the return line, or in the case of a one-pipe installation, back to
the suction connection in the gear wheel pump.
- Two-pipe system
When the solenoid valve is not activated, the return plug channel between the
pressure side and the return side of the pressure valve is open. No pressure
will be built up to open the pressure valve, regardless of gear wheel pump
rpm. When the solenoid valve is activated, the return plug channel is shut.
The gear wheel pump’s rotation at full rpm quickly builds up the pressure
necessary for opening the valve and provides a sharp opening action.
- One-pipe system
Purging of the oil line system is not automatic in the one-pipe system; open
the manometer connection for purging.
Shut-down
When the burner stops, the solenoid valve opens the return plug channel
and drains oil to the return line. At that same moment the nozzle line is
closed. This provides a sharp cut-off. The on and off functions can be
controlled independent of motor rpm, and react very quickly. When the
solenoid valve is not activated torque is low up to full motor rpm.

20 Bentone B 2
General
H
H
5.1.6 Suction pipe tables AS47CK
5.1.6.1 Overhead Tank
One-pipe system
Height m
Line diameters
4,0 3,0 2,0 1,0 0,5 0,0
ø 4 mm 100 100 100 91 82 74
Two-pipe system
Height m
Line diameters
4,0 3,0 2,0 1,0 0,5 0,0
ø 6 mm 29 25 22 18 16 14
5.1.6.2 Underlying Tank
One-pipe system
For reliable operations, use of a Tigerloop is recommended in underlying
tanks.
Two-pipe system
Height m
Line diameters
0,0 -0,5 -1,0 -2,0 -3,0 -4,0
ø 6 mm 14 12 10 7 3 0
The suction line tables comprise theoretically calculated values where
pipe dimensions and oil flow are adapted to prevent turbulent flows from
occurring.
Turbulent flows can result in pressure losses and noise in the pipework. A
typical pipe system usually comprises pipe runs with 4 bends, a non return
valve, a shut-off valve and a pre-filter.
The total resistance of these items is such that it can be disregarded. In the
tables no run longer than 100 m is listed, as experience shows this not to be
required.
The tables apply to standard heating oil of normal grade merchantable
according to existing norms. When starting operations with an empty pipe
system, the pump should not be run without oil for more than 5 min.
The tables give the total suction line length in meters with a nozzle
capacity of 2.1 kg/h. Max. permissible pressure on the suction and return
lines is 2.0 bar. For a two-pipe system the Qmax 46 l/h pump capacity at 0 bar
applies.