Bentone BG 700 Technical specifications

Providing sustainable energy solutions worldwide
178 006 85-2 2016-11-21
Installation- and maintenance instruction
BG 700/800/950

3Bentone BG700M,800M,950M
General
General
Table of contents
GENERAL
Important to remember! ______________________________________________4
Service _____________________________________________________________________5
What to do if you smell gas _________________________________________5
Safety instructions ______________________________________________________6
Delivery check____________________________________________________________6
1. Technical data _______________________________________________________________7
1.1 Dimensions _____________________________________________________________7
1.1.1 Dimension of flange _______________________________________7
1.1.2 Capacity range______________________________________________8
1.1.3 Burner Specification ______________________________________9
1.2 Description BG 700/800/950___________________________________12
2. General instruktions ____________________________________________________14
2.1 General instructions________________________________________________14
2.2 Operating instructions_____________________________________________ 14
2.3 Instructions____________________________________________________________ 14
2.4 Inspection and maintenance____________________________________14
2.5 Start up_________________________________________________________________ 14
2.6 Commissioning of installation___________________________________14
3. Installation __________________________________________________________________ 15
3.1 Delivery check _______________________________________________________ 15
3.2 Preparations for installation _____________________________________15
3.3 Gas supply ____________________________________________________________15
3.4 Electric connection_________________________________________________ 15
4. Skeleton diagrams ______________________________________________________ 16
4.1 Multi-Bloc MB-DLE405-412.....B01__________________________ 16
4.1.1 Electritrical connection MB-DLE405-412.....B01
16
4.1.2 Functional description of gas flow _________________18
4.1.3 Operating method of valve-regulator combina-
tion on valve V1 ________________________________________________18
4.1.4 Operating method of valve V2 ______________________18
4.1.5 Min. opening (residual stroke) of valve (0.5 to 1.0
mm) _______________________________________________________________18
4.1.6 Closing function _________________________________________18
4.2 Multi-bloc MB-VEF 407-412.....B01 _________________________ 19
4.3 Multi-bloc MB-VEF 415-420.....B01 _________________________ 19
4.4 Multi-Bloc MB-VEF425.....B01_________________________________20
4.5 Electritrical connection MB-VEF 407-425__________________ 20
5. Mounting of the burner________________________________________________ 21
5.5.1 Setting the combustion assembly__________________21
5.1 Wiring diagram LFL1... ___________________________________________22
5.2 List of components LFL1... _____________________________________23
5.3 Funktion LFL1..._____________________________________________________ 24
5.4 Control programme under fault conditions and lockout
indication LFL1....____________________________________________25
6. Measures and checks
before start-up ________________________________________________________26
6.1 2-Stage or modulating burners ________________________________ 26
6.2 Gas nozzle BG 700/800__________________________________________27
6.3 Gas nozzle BG 950 ________________________________________________ 27
7. Determination of gas volume for the installation __________ 28
7.1 Example how to calculate the gas volume (natural gas) _
28
7.2 Multi-bloc, MB-VEF 420-425.... B01 ________________________29
7.3 Technical data________________________________________________________30
7.4 Mounting instruction - impulse lines PL, PFoch PBr ____________30
7.5 Adjustment possibilities___________________________________________ 30
7.6 MULTI-BLOC, MBD-LE 405-410.... B01 ___________________ 31
8. Damper motor modulating___________________________________________ 32
8.1 Air adjustment________________________________________________________32
8.2 Releasing button: ___________________________________________________32
9. General Instructions ____________________________________________________ 33
9.1 Adjustment of burner ______________________________________________ 33
9.2 Service__________________________________________________________________ 33
9.3 Flame monitoring and measurement of ionisation cur-
rent________________________________________________________________34
9.4 UV-detector___________________________________________________________ 34
9.5 Adjustment of air pressure switch ____________________________35
9.6 Adjustment of min. gas pressure switch (option) ________ 35
9.7 Adjustment of max. gas pressure switch (option) _______ 35
10. Handing over of the installation________________________________36
10.1 Fault location, functional troubles _____________________________36
11. Fault location guide _________________________________________________37
Gas burner ______________________________________________________________ 37

4Bentone BG700M,800M,950M
General
Warning
!
Warning
!
Important to remember!
This installation and maintenance manual is intended for the user and
qualified professionals. It should be taken into account by all those who work
with the burner and associated system components. Work with the boiler
may only be carried out by individuals who have completed certified training.
• This manual is to be regarded as part of the burner and must always
be kept near the installation site. Enertech AB reserves the right to
make changes and correct any printing errors.
• All products are packed to prevent any damage occurring when they
are handled. Handle the products with care. Two or more people are
needed to move large packages. All products must be stored upright
on a level, dry surface.
• The weight is on the label cardboard box.
• The burner may be installed by authorised personnel only.
• Check that the burner is compatible with the boiler’s output range.
• The burner must be installed so that it complies with local regulations
on fire safety, electrical safety and boiler and fuel distribution.
• Make sure when installing the equipment that enough room is left to
service the burner.
• Permitted temperature during operation +3 to +30°C
• Temperature during transport/storage -10 to +60°C
• Max. relative air humidity 80%, no condensate
• The installer must ensure that the room has sufficient fresh air
ventilation as per local norms.
• The room must comply with local regulations applicable to its intended
use.
• If any electrical connection is used other than that recommended by
Enertech, there may be a danger of damage to property and personal
injury.
• The electrical installation must be carried out in accordance with
applicable heavy current regulations and in a professional manner,
avoiding the risk of gas leaks, fire or personal injury.
• Care should be taken by the installer to ensure that no electrical
cables or gas pipelines are crushed or damaged during installation or
servicing.
• If the boiler has a door that opens, this should be locked with a door
switch.
• Does this product need to be sorted as metal, plastic and electrical
when being recycled? Used material must be handled appropriately
and in an environmentally friendly manner. Observe local regulations.
• When in operation the burner’s noise level can exceed 85 dBA. Wear
ear defenders when in the same room.
• It is not permitted to use the burner outside the intended area of use.
• The burner may not be commissioned with safety or protective devices
that are not fit for purpose. Nor are custom design modifications
or the installation of accessories not tested together with the

5Bentone BG700M,800M,950M
General
burner permitted. Commissioning is to be carried out by qualified
professionals only.
• Prior to commissioning, the following points should be checked:
-all fitting and installation work has been completed and approved
-the electrical installation has been carried out properly, the correct
fuses added to circuits and measures to safeguard enclosures on
electrical devices and all wiring have been checked
-flue gas ducts and combustion air ducts are not blocked
-all actuators and control and safety devices are in working order and
set correctly
Service
• Service should be performed after approx. 3,000 working hours, but
no less than once a year.
• Only authorised personnel should perform the service.
• Before obtaining access to terminals, all supply circuits must be
disconnected.
• Be careful: certain parts exposed after separation of the burner can be
hotter than 60°C.
• Care should be taken by the installer to ensure that no electrical
cables or gas pipelines are crushed or damaged during installation or
servicing.
• Only spare parts recommended by Enertech should be used.
What to do if you smell gas
• Prevent open flames or sparking, e.g. do not turn lights on or off, do
not use any electrical appliances, do not use mobile phones. Open
windows and doors. Close the gas ball valve. Warn residents; do not
use doorbells. Vacate the building. Notify the company/installer or gas
supplier once the building has been vacated.
• Turn off the equipment and take the boiler out of operation. Open
windows and doors. Notify the company/installer.
• Check that the burner is approved for the intended grade of gas and
connection pressure.
• No safety systems on the burner may be disconnected.
• General advice on how to eliminate a fire
• One or more boilers for solid or liquid fuel whose total rated output
exceeds 60 kW should be installed in a separate boiler room. An
airlock should be the only way a separate boiler room is connected
to evacuation routes from residential buildings in activity class 3, and
offices in activity class 1 that do not constitute an integrated part
of an industrial activity or similar activity. Ensure that local rules and
regulations are observed.
• The term “separate boiler room” refers to boiler rooms which are
specially designed to provide protection against the starting and
spreading of fire and the production and spreading of combustion gas.
Ensure that local rules and regulations are observed.
• Separate boiler rooms and fuel stores immediately next to a separate
boiler room should be designed as individual fire compartments.
Ensure that local rules and regulations are observed.

6Bentone BG700M,800M,950M
General
Safety instructions
• Read the manual before installation or commissioning.
• The burner may be installed by authorised personnel only.
• Check that the burner is compatible with the boiler’s output range.
• The power data on the type sign refers to the burner’s min. and max.
power.
• Check that the burner’s dimensions and capacity range are suitable for
the boiler in question.
• The electrical installation must be carried out in accordance with
applicable heavy current regulations and in a professional manner,
avoiding the risk of gas leaks, fire or personal injury.
• If any electrical connection is used other than that recommended by
Enertech, there may be a danger of damage to property and personal
injury.
• Care should be taken by the installer to ensure that no electrical
cables or gas pipelines are crushed or damaged during installation or
servicing.
• The burner must be installed so that it complies with local regulations
on electrical safety and boiler and fuel distribution.
• Check that the burner is approved for the intended grade of gas and
connection pressure.
• No safety systems on the burner may be disconnected.
• The installer must ensure that the boiler room has sufficient fresh air
ventilation as per local norms.
• Gas leak checks should be carried out on installation and servicing to
avoid a gas leak and the associated hazards and risks.
• Before servicing, shut off the fuel supply and turn off the power to the
burner.
• The surface temperature of the burner’s components may exceed
60°C.
• Be careful when servicing: there may be a risk of pinching.
• Ensure that the burner is protected against direct spraying of water,
since it is not designed to withstand this.
• Only spare parts recommended by Enertech should be used.
• This burner cannot be used for biogas without first contacting
Enertech.
• If the boiler has a door that opens, this should be locked with a door
switch.
Delivery check
• Make sure everything is delivered and the goods have not been
damaged during transit.
• If something is wrong with the delivery, report it to the supplier.
• Transport damage must be reported to the shipping company.

7Bentone BG700M,800M,950M
General
E
H
I
C
B
E
F
G
D
A
1. Technical data
1.1 Dimensions
Type Length of
burner tube
Flange
measure A
Burner tube
measure B
Burner tube
measure C
BG 700 Standard 363 328 220 205
Long design 663 628
BG 800 Standard 396 361 260 205
Long design 700 665
BG 950
Standard 1 350 310
280 255Standard 2 550 510
Standard 3 650 610
K
L
M
* The above dimensions are max. measurements. Depending on the
components used, the measurements may vary.
1.1.1 Dimension of flange
D E F G H I
BG 700 820 410 510 *730 *970 420
BG 800 820 410 510 *730 *1022 472
BG 950 890 410 510 *730 *1027 472
K L M
BG 700 M14 (Ø 210) Ø 230 (Ø 280) Ø320-380
BG 800 M14 (Ø 210) Ø 270 (Ø 280) Ø320-380
BG 950 M14 (Ø 260) Ø 290 (Ø 340) Ø420-490

8Bentone BG700M,800M,950M
General
Type Grade
of gas
Capacity
kW
Gas quantity
at min. power
Nm3/h 1)
Gas quantity
at max.
power Nm3/h
1)
Max.
connection
pressure
mbar
Nominal
connection
pressure mbar
BG 700 G20 300–1500 30 150
100–360
50
BG 700 G25 360–1500 45 187,5 50
BG 700 G31 380–1650 14,6 63 50
BG 800 G20 380–2400 38 240
360
50
BG 800 G25 380–2400 47,5 300 50
BG 800 G30 380–2400 11 70,5 50
BG 800 G31 380–2400 14,6 92 50
BG 950 G20 500–3200 50 320
360
45
BG 950 G25 500–2800 62,5 350 60
BG 950 G30 500–3200 17,7 94 35
BG 950 G31 500–3200 19,2 123 35
1) A heat value in kWh/Nm3is used for the underlying calculation in normal
ambient conditions: 15°C 1013.25 mbar (as per SS-EN 676)
Calorific value:
G20 Natural gas 10,0 kWh/Nm3
G25 Natural gas 8,0 kWh/Nm3
G31 Propane 26 kWh/Nm3
G30 Butane 34 kWh/Nm3
Gas quantity and capacity vary according to grade of gas and connection
pressure.
1.1.2 Capacity range
1.1.3 Burner Specification
Type Motor Ignition
transformer
Fitting Complete
burner
Sound
BG 700 3,0 kW,
230/400V 50 Hz
2800 Rpm
11,2/6,5A
Prim. 230 V, 0,25A
50-60Hz 60VA
Sek. 11kV Ampl
50 mA rms
33% ED in 3 min
Naturgas,
Propane,
Butane
2 ½”, 1,5”
3,2 kW
230/400 V
50 Hz
12,2/6,3A
93 dBA ± 0,5
dBA
BG 800 5,5 kW
230/400 V 50 Hz
2800 Rpm
21/12A
Prim. 230 V, 0,25A
50-60Hz 60VA
Sek. 11kV Ampl
50 mA rms
33% ED in 3 min
Naturgas,
Propane,
Butane
3“ (2½“, 2“,
1½“)
5,7 kW
230/400 V
50 Hz
22/12,8A
96 dBA ± 0,5
dBA
BG 950 5,5 kW
230/400 V, 50Hz
2800 Rpm
21/12A, 3 fas
Prim. 230 V, 0,25A
50-60Hz 60VA
Sek. 11kV Ampl
50 mA rms
33% ED in 3 min
Naturgas,
Propane,
Butane
3“ (2½“, 2“,
1½“)
5,7 kW
230/400 V
50 Hz
22/12,8A
97 dBA ± 0,5
dBA

9Bentone BG700M,800M,950M
General
BG 700
G20, G21 300-1500 kW
G30 380-1650
BG 800
380-2400 kW
BG 950
500-3200 kW
mbar
32
28
24
20
16
12
8
4
0
-4
400 900 1400 1900 2400 2900 3400
-2
0
2
4
6
8
10
12
14
200 400 600 800 1000 1200 1400 1600
-4
0
4
8
12
16
20
24
28
32
200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400
kW
kW
kW

10 Bentone BG700M,800M,950M
General
1.2 Description BG 700/800/950
15 23 1224
13
2625
41
2
29
7 9
6
8
21
16
17
18
19
20
9
6
7

11Bentone BG700M,800M,950M
General
11
10
26 14
2
5
3
27
28
1. Burner tube
2. Guide bar
3. Electric panel
4. Fan wheel
5. Fan house
6. Shrouded disc
7. Ignition electrode
8. Nozzle
9. Ionisation electrode
10. Motor
11. Connection gas fittings
12. Ignition transformer
13. Air damper
14. Air damper motor
15. Air pressure switch
16. Fuse holder
17. Change-over switch increase-decrease
18. Change-over switch manually-automatically
19. Indicating lamp
20. Switch l-ll
21. Time meter (optional)
22.
23. Contactor with thermal overload protection
24. Control box
25. Filter
26. MultiBloc
27. Connection flange
28. Impulse line fire room
29. 29.Ball valve

12 Bentone BG700M,800M,950M
General
2. General instruktions
2.1 General instructions
The installation of the gas burner must be carried out in accordance with
current regulations and standards. The installers of gas burners should
therefore be acquainted with all regulations and ensure that the installation
complies with the requirements. The installation, mounting and adjustment
should be made with the greatest care and only the correct gas should be
used.
2.2 Operating instructions
The operating instructions accompanying the burner should be left in a
prominent position in the boiler room.
2.3 Instructions
The user should be thoroughly in-structed in the function of the gas burner
and the whole installation. The supplier must instruct the user.
2.4 Inspection and maintenance
Daily inspection is advisable..
2.5 Start up
After the burner has been fitted to the boiler and the electric connection, the
leakage control, the venting and the electric function test have been carried
out, the burner will be ready for start-up.
Howerer, study the sections dealing with adjustments of multi-bloc,
combustion air and combustion head. Open the ball valve and switch on the
main switch. If the burner starts the actual adjustment can be made.
2.6 Commissioning of installation
Control of the combustion. The combustion quality is checked by means of a
flue gas analysis device. 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.

13Bentone BG700M,800M,950M
General
3. Installation
3.1 Delivery check
Check that all has been delivered and that the goods have not been
damaged during transport. If that is not the case, please notify the delivery
company. Transport damages should be reported to the forwarding agency.
3.2 Preparations for installation
Check that the measurements and capacity range of the burner are
compatible with the boiler. The power ratings on the type plate refer to the
min. and max. power of the burner.
3.3 Gas supply
For good operating safety, it is important that the gas supply system is
installed correctly.
Consider the following:
1. Check that the burner is approved for the gas quality of the installation.
If not, please contact the supplier.
2. Check that the gas components of the burner are approved for
indicated gas pressure.
3. The gas supply system should be installed in accordance with current
standards.
4. Pipe lines should be run so that service on boiler and burner is
facilitated.
5. Pipe lines should be run so that eventual contaminants cannot come
into contact with the gas components.
3.4 Electric connection
Before starting the electric installation, the main switch must be turned off.
If the boiler has a 7-pole and a 4-pole Eurostecker connector, these usually
fit directly to the burner. If not, use the connectors included.
(Refer to connection under Electric equipment)
!If an electric connection other than the one recommended by Enertech is used, a risk of damage and
injury can arise.

14 Bentone BG700M,800M,950M
General
3
pe
24
pa
5
pBr
03
pe
4
pa
6
1
1
0
5345 3
4
6
6
2
0
0 Filter couver
1,3,4,6 G 1/8 screw plug
2 Test nipple, optional
5 M4 screwed sealing plug
4. Skeleton diagrams
4.1 Multi-Bloc MB-DLE405-412.....B01
!When Bio gas is used, Enertech shall always be contacted.
P1
L1 Mp
N
S 20/S 50
P1
L1
MP
N
2
1
4.1.1 Electritrical connection MB-DLE405-412.....B01

15Bentone BG700M,800M,950M
General
21
22
V1 V2
16
15
14
13
12
6
5
4
3
2
1
7
10
11
8
9
19
20
18
17
p1p2
ABC
D
E
1. Pressure regulator
2. Microfilter
3. Valve V1
4. Connection flange
5. Closing spring V1
6. Housing
7. Armature V1
8. Regulating spring
9. Solenoid V1
10. Gas pressure switch
11. Electrical connection
12. Valve V2
13. Closing spring V2
14. Armature V2
15. Solenoid V2
16. Solenoid housing
Setting:
17. - Gas pressure pa
18. - Main volume
19. - Fast stroke
20. Hydraulic brake
MB-DLE405-412.....B01

16 Bentone BG700M,800M,950M
General
4.1.2 Functional description of gas flow
When the valves V1 and V2 are closed, chamber A is under inlet pressure.
A hole D in the filter housing connects min. pressure switch with chamber
A. If the inlet pressure applied to the pressure switch exceeds the incoming
reference value, it switches through to the automatic burner control. After
release by the automatic burner control, valves V1 and V2 open. The gas
flow through chambers A, B and C of the GasMultiBloc.
4.1.3 Operating method of valve-regulator
combination on valve V1
A regulator, compensating for residual pressure is integrated in valve V1
(pressure regulating part). Armature 7 is not connected to valve plate unit
3. When it opens, armature 8 pretensions compression spring (V1) 5 and
releases the valve plate unit. When the valve closes, the armature acts
directly on the valve plate unit. The output pressure upstream of valve V2 is
defined by pretensioning regulator spring 8 (tension spring) via setting screw
17. The output pressure acts via opening E on the working diaphragm 21
of the regulator part. 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.
4.1.4 Operating method of valve V2
Armature 14 of valve V2 is connected to valve plate unit 12. When it opens,
armature 14 pretensions compression spring 13. The max. valve opening
can be set by limiting the armature stroke by means of the main volume
restrictor 18.
4.1.5 Min. opening (residual stroke) of valve (0.5
to 1.0 mm)
Main volume restrictor 18 is set by rotating the adjusting plate or the
hydraulic brake. The fast and/or slow opening characteristic is influenced by
setting fast stroke 19 at the hydraulic brake under the cover.
4.1.6 Closing function
When the supply voltage to the solenoid coils of valves V1 and V2 is
interrupted, they are closed within < 1 s by the compression spring
MB-DLE405-412.....B01

17Bentone BG700M,800M,950M
General
4.2 Multi-bloc MB-VEF 407-412.....B01
1,3,4,6 G 1/8 screwed sealing plug
2 Measuring nozzle (option)
5 M4 screwed sealing plug
7,8,9 G 1/8 female thread for pL,pF,pBr pulse lines
0 Filter cup
1
2
6
5
4
5
4
2
0
0
p , extern
PN1, DN 4
min. 5 x DN
p
p
ap
Br
p
ap
Br
Br
F
pL
7 8
9
3
p
e
3
p
e
V
N
N
V
1
0
7
6
9
8
5
3
4
1
0
7
534
22
4.3 Multi-bloc MB-VEF 415-420.....B01
6 5 7
5
8
657
NN
1
345
5
345
9
9
11
4
3
4
3
V1 V2
6 7
1, 2, 3, 4, 5 G 1/8 screwed seal plug
9 Test nipple (option)
6, 7, 8 Pulse lines pL,pF,pBr

18 Bentone BG700M,800M,950M
General
1
4
2
3
5
8
1
4
2
3
6 7 6 7
1
3 2 4
5
MB-VEF 425 B01
6 7
8
V2
V1
3 2 4
1, 2, 3, 4, 5 G 1/8 screwed seal plug
9 Test nipple (option)
6, 7, 8 Pulse lines pL,pF,pBr
4.5 Electritrical connection MB-VEF 407-425
S 10/S 30
P1
L1
Mp
N
P1
L1
MP
N
2
1
4.4 Multi-Bloc MB-VEF425.....B01

19Bentone BG700M,800M,950M
General
5.5.1 Setting the combustion assembly
The burner is not equipped with a lever that changes the position of the
brake plate in the combustion head.
On these burners the combustion assembly is designed so that good
combustion can be obtained without adjusting the brake plate.
!For maintenance of the brake plate, nozzles, electrodes etc, when using a long design of the burner tube,
you have to remove the nozzle assembly from the connecting pipe and move the assembly backwards in
the fan housing (from the boiler).
5. Mounting of the burner
To facilitate the mounting of the boiler the burner head with gas flange and
pull rods can be removed from the burner.
DO LIKE THIS:
Loosen the screw "A" on both sides and the two stop bolts at the end of
the pull rods. Remember that the electric cables to solenoid valve and gas
switch are also disconnected. When the burner head and the gas flange
have been fitted to the boiler it is easy to lift the burner on to the pull rods.
If the gas assembly needs to be inspected the pull rods are very useful.
Loosen the screw "A" and pull out the burner on the pull rods. Loosen the
screws "B" and withdraw the gas assembly.
Ensure that the O-ring between the gas assembly and the gas flange will be
in the correct position when the gas assembly is fitted again.

20 Bentone BG700M,800M,950M
General
5.1 Wiring diagram LFL1...