Bentone BG 700i M Technical specifications

Providing sustainable energy solutions worldwide
Installation- and maintenance instruction
BG 700i M
LMV37
MB-DLE 415-420
IP40
Translation of the original instructions.
178 121 80-5 P93783 2023-03-15

2 Bentone
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
3
?
1
-sv
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på: www.bentone.com/
ecodesign.
-en
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2. www.bentone.com\download
or scan QR-code.
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number on your data plate (see
picture) and select language.
Detailed ecodesign information
can be downloaded at:
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2

3Bentone
Table of contents
1. General Information............................................................4
1.1 Delivery inspection........................................................................ 4
1.2 Safety ............................................................................................... 4
1.3 What to do if you smell gas......................................................... 5
2. Technical data.......................................................................6
2.1 Dimensions BG 700i M................................................................. 6
2.5 Capacity range............................................................................... 7
2.2 Gas categories, approved gases................................................ 7
2.3 Technicalspecication ................................................................. 8
2.4 Workingeld.................................................................................. 8
2.6 Components................................................................................... 9
2.7 Skeleton diagram........................................................................ 11
3. Electric equipment.............................................................12
3.1 Safety system .............................................................................. 12
3.2 Wiring diagram............................................................................ 12
4. Automatic control unit LMV37 .........................................14
4.1 System structure/function description................................... 14
4.2 General information ................................................................... 15
4.3 Technical Data Basic unit LMV37.4.......................................... 15
4.4 Connection and internal diagram............................................20
5. Operation ...........................................................................22
5.1 LMV37 automatic control unit.................................................. 22
5.2 List of phase displays ................................................................. 24
5.3 Automatic control unit levels .................................................... 25
5.4 Setting the automatic control unit .......................................... 29
5.5 Backup and restore .................................................................... 48
5.6 Fault status message, display of errors and info ................. 52
5.7 Dispaly message of info............................................................. 56
5.8 Resetting the automatic control unit...................................... 57
5.9 Manual output ............................................................................. 58
6. Parameter list.....................................................................59
7. Error code list .....................................................................69
8. Installation..........................................................................84
8.1 General instructions................................................................... 84
8.2 Instructions .................................................................................. 84
8.3 Inspection and maintenance.................................................... 84
8.4 Preparation for assembly ......................................................... 84
8.5 Gas supply .................................................................................... 84
8.6 Electric connection ..................................................................... 84
8.7 Handling and lifting instruction ............................................... 85
9. Mounting ............................................................................86
9.1 Gas nozzle..................................................................................... 87
9.2 De-aerating................................................................................... 88
9.3 Leakage control........................................................................... 88
9.4 Calculate prepurge time, Industrial applications ................ 89
9.5 Calculationofgasow.............................................................. 90
10. Settings ...............................................................................91
10.1 Setting the air damper............................................................... 91
10.2 Setting the gas damper............................................................. 91
10.3 Startup........................................................................................... 91
10.4 Control of combustion .............................................................. 91
10.5 Settingtheairpressureswitch ................................................ 92
10.6 Settingthegaspressureswitch,min...................................... 93
11. Damper motors..................................................................94
11.1 Damper motor SQN....................................................................94
11.2 Damper motor SQM................................................................... 96
11.3 Gas damper DMK........................................................................ 98
12. Gas valve, MultiBloc DLE 412-420 ..................................100
12.1 Technicalspecication .............................................................100
12.2 Overview .....................................................................................101
12.3 Pressure outlets ........................................................................102
12.4 Electrical connection ................................................................102
12.5 Settings .......................................................................................103
13. Service ...............................................................................104
13.1 Burner Service Schedule, Gas ................................................104
13.2 Component replacement intervals........................................104
13.3 Combustion device ...................................................................105
13.4 Air damper..................................................................................106
13.5 Replacement of damper motor, air .......................................107
13.6 Replacement of damper motor, gas......................................108
13.7 Fan ...............................................................................................109
13.8 Vibrations....................................................................................110
13.9 Flame monitoring and ionisation current check ................111
13.10 Flame detector QRA .................................................................112
13.11 Replacement of electrical components................................113
14. Handing over of the installation ....................................114
15. Troubleshooting...............................................................115
16. Service- and inspection protocol ...................................117

4Bentone
172 515 01-2 2021-10-05
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 should 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.
• Sharp edges can occur on, for example:  ame tube, fan wheel and air
damper.
• The gas outlet from the pressure regulator must be con gured in
accordance with applicable regulations and lead to a safe area.
- 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.
• Fitting and installation work has been completed and approved.
• Electrical installation has been correctly performed.
• Flue 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.
1.3 What to do if you smell gas
• Turn off the fuel supply.
• Turn off the device and remove the boiler from operation.
• Open windows and doors.
• Prevent open  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
recti ed.

6Bentone
172 525 59-3 2023-03-15
2. Technical data
The burner is intended for:
• Operation in installations according to EN 303 and EN 676.
Fuels:
• Natural gas H, E, L, LL.
• LPG, Butane and Propane.
2.1 Dimensions BG 700i M
* The above dimensions are max. measurements. Depending on the components used, the measurements may vary.
** Min. recommended distance to oor.
Length of
ame tube
Flame tube
measure A
Flame tube
measure B
Flame tube
measure C
363 328 ø220 ø205
663 628 ø220 ø205
D E F G H I J
820 410 510 *730 *970 420 **200
*I
*H A D
E F *G
B
**J
C
160303-694

7Bentone
K
L
M
2.3 Gas categories, approved gases
Only dry gas is permitted for use.
BG 700
G20 300 - 1500 31.7 158.7 360
G25 300 - 1500 36.9 184.5 360
G31 380 - 1650 15.5 67.5 360
160302-240-3
Capacity
kW
Gas quantity at min.
power
Nm3/h
Gas quantity at max.
power
Nm3/h
Max. connection
pressure
mbar
Nominal
connection
pressure mbar
See data plate.
Gas quantity and capacity vary according to grade of gas and connection pressure.
K L M
14 (Ø 280) Ø320-380 ***(Ø 210) Ø 230
Category Country of destination Supply pressure
II2R3R AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR,
HR, HU, IE, IS, IT, LT, LU, LV, MK, MT, NL, NO, PL, PT, RO,
RS, SE, SI, SK, TR
40 mbar
II2H3B/P AT, CH, CY, DK, FI, LT, RO, SE, SK 40 mbar
II2H3P GB, IE 40 mbar
II2L3B/P NL, RO 40 mbar
II2E3B/P PL 40 mbar
I2E(R)B BE 40 mbar
I3P BE 40 mbar
160302-235-3
*** Dimensions when installing ame tube from the inside of the heat
generator.
2.1.1 Measurements for connection to the boiler
2.2 Capacity range

8Bentone
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.
!Do not exceed working
eld.
2.5 Working eld
BG 700i M
Main supply, Operation 1) 2) 230V, 1~, 0.8A, 50Hz, IP40
Main supply, Motor 1) 230/400V, 10.4/6.0A
Max fuse rating, Motor 6.3A
Max fuse rating, Operating C10A
NOX-class 2
Noise level 93 dBA
1) Max operating current, see data plate.
2) Motor excluded.
-2
0
2
4
6
8
1
0
1
2
14
200 400 600 800 1000 1200 1400 1600
mbar
kW
G20, G25 300-1500 kW
G30, G31 380-1650 kW
160303-251
2.6 Components
1. Flame tube
2. Damper motor, gas
3. Gas pressure switch, Min/
Leakage control
4. Gas valve (MultiBloc)
5. Air damper
6. Damper motor, air
7. Connection, gas
8. Air pressure switch
9. Fan house
10. Cover, inspection glass
11. AZL display for LMV
automatic control unit
12. Switch 0-I
13. Guides
14. Ignition electrode
15. Brake plate
16. Ionisation electrode
17. Electrical connection
18. Nozzle
19. Motor
20. Measuring nipple, fan
pressure
21. Fixing ange

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11
12
17
14
15
16
6
7
9
8
1
2
3
4
5
10
13

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16
18
19
20
21
6
7
8
9
12
54
3
2.6.1 Components – Electrical box
1. Contact damper motor, air SQM 33
2. Contact damper motor, gas SQN 13
3. AZL display for LMV automatic control
unit
4. Contactor + Overload protection
5. Transformer
6. Fuse holder
7. Branching point/ measureing point for
ionisation
8. LMV Automatic control unit
9. Quick release switch for regulator

11Bentone
172 515 86 2018-08-02
2.7 Skeleton diagram
1. Ball valve
2. Filter
3. Pressure regulator
4. Pressure gauge with shut-off cock
5a. Gas pressure switch, min.
5b. Gas pressure switch, max.
6a. Main valve, 2-stage
6b. Safety valve
7. 1) Leakage control
8. Air damper motor
9. Air pressure switch
10. LMV Automatic control unit
Pos. 5b, 7: Components not required according to EN 676.
1) Required over 1200 kW according to EN 676.
!This burner must not be used for biogas without rst
contacting Enertech.
1 2 3 5a 5b
4
6b6a
7
8910
11
5b

12 Bentone
3. Electric equipment
3.1 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. If these safety
requirements are met by other means, safety circuits must be bypassed. This
can differ between different systems in which the burner is installed, see
rules and regulations that apply.
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.
3.2 Wiring diagram
172 615 81-3 2023-03-01
Bn Brown
Bu Blue
Gn Green
Ye Yellow
Gn/Ye Green/Yellow
Bk Black
Gy Grey
Rd Red
Wh White
Og Orange
Vt Violet
!The installation of a safety
system is required to start
the burner.
E106308
151015
JW
220920
Msn

13Bentone
3.2.1 Components
A2 Power control
B1 Ionization electrode
F1 Operating fuse
F2 Operating fuse
K1 Contactor + Overload protection
M1 Motor
M2 Damper Motor (air)
M3 Damper Motor (gas)
R1 UV-detector
OC Operation circuit
SC Safety circuit
S1 Operating switch
S7 Main switch
S8 Air pressure switch
S9 Gas pressure switch, min
S15 Control thermostat 3-pole
S20 Main switch, 1-phase
T1 Ignition transformer
U2 UV-detector QRC
X1 Connection terminal board
X3 Plug-in contact, burner
X4 Plug-in contact, boiler
X5 Plug-in-contact, stage 2 burner
X6 Plug-in-contact, stage 2 boiler
X7 Plug-in contact, 3 phase, burner
X8 Plug-in contact, 3 phase, boiler
X15 Plug-in-contact, power control burner
X16 Plug-in-contact, power control
X40 Contact power control
X41 Contact power control
Y1 Solenoid valve 1
Y2 Solenoid valve 2

14 Bentone
4.1 System structure/function description
The LMV37.4... is a microprocessor-based burner management system with
matching system components for the control and supervision of forced draft
burners of medium to high capacity.
Integrated in the basic unit of the LMV37.4... are:
• Burner management system complete with valve proving system
• Electronic air-fuel ratio control system for a maximum of 2 SQM3... or
SQN1... actuators
• Control of VSD air fan
• Modbus interface
Example: Modulating gas burner
The system components (display and operating unit, actuators) are connected
directly to the LMV37.4... basic unit. All safety-related digital inputs and outputs
of the system are monitored by a contact feedback network.
4. Automatic control unit LMV37
At the time of writing, of the parameters mentioned above, motor frequency
control and communication via modbus are not available on the burner models
described in this manual.
172 525 67
The LMV37 automatic control unit is a piece of control equipment that can be
used for many different types of burner.
In the following review of how this control equipment works and can be
adjusted, the description will focus on the type of burner covered by this

15Bentone
4.2 General information
The burner management system is operated and parameterized via the
AZL2… display. The AZL2… with LCD and menu-driven operation facilitates
straightforward use and targeted diagnostics. When making diagnostics, the
display shows the operating states, the type of error and the point in time
the error occurred. Passwords protect the different parameter levels of the
burner against unauthorized access. It is possible to select from different
types of fuel trains and make use of a wide choice of individual parameter
settings (program times, conguration of inputs / outputs, etc.), enabling the
installer to make optimum adaptations to the relevant application. A change of
parameters varies in levels of authorization, this manual will give info on those
that might be changed by the installer. The actuators are driven by stepper
motors and can be positioned with high resolution. Specic features and
actuator settings are dened by the LMV37.4... basic unit.
4.3 Technical Data Basic unit LMV37.4...
Mains voltage
LMV37.400A2 AC 230 V -15 % / +10 %
Mains frequency 50 / 60 Hz ±6 %
Safety class I, with parts according to II and III to
DIN EN 60730-1
Perm. mains primary fuse (externally) Max. 16 AT
Unit fuse F1 (internally) 6.3 AT (DIN EN 60127 2 / 5)
Mains supply: Input current depending
on the operating state of the unit
Under voltage
Safety shutdown from operating
position at mains voltage
LMV37.400A2 Approx. AC 186 V
Restart on rise in mains voltage
LMV37.400A2 Approx. AC 195 V

16 Bentone
M
0°
0°
t1
p
P
P
LP
Z
AL
V1
V2
0°
5 s5 s 30 s
POC *)
X3-04 pin 1/2
X5-03 pin 1/4
X10-05
pin 2 / pin 3/4
X10-06 pin 1/2
X3-02 pin 1/2
X5-01 pin 2/3
X5-02 pin 2/3
X5-02 pin 2/3
X3-05 pin 1
X4-02 pin 2/3
X6-03 pin 2/3
X8-02 pin 1/3
X7-01 pin 2/3
X7-02 pin 2/3
X3-05 pin 2
X54
X53
X74
P
P
X9-04 pin 2/3
X5-01 pin 2/3
Fuel
Air
R (ON)
Function / Inputs
Function / Outputs
RAST plug
pin number
RAST plug
pin number
Gas direct ignition «G», «G mod», «G mod pneu»
Legend to the sequence diagrams

17Bentone
!Not all phases, times, indices, abbreviations and symbols
appear in the individual sequence diagrams or are needed
there!
Phase
numbers
00 Lockout phase
02 Safety phase
10 Home run
12 Standby (stationary)
22 Fan motor (M) = ON, safety valve (SV) = ON
24 Air damper (LK) fuel valve (V) – position
30 Prepurging
36 Air damper (LK) ignition (Z) – position
38 Preignition ignition (Z) = ON
39 Test pressure switch-min (Pmin)
40 Fuel valve (V) = ON
42 Ignition (Z) = OFF
44 Interval 1 (t44)
50 Safety time 2 (TSA2)
52 Interval 2 (t52)
60 Operation 1 (stationary)
62 Operation 2 air damper (LK) low-re (KL) – position
70 Afterburn time (t13)
72 Air damper (LK) Rated load (NL) – position
74 Postpurge time (t8)
78 Postpurge time (t3)
80 Evacuation of test space
81 Atmospheric pressure test
82 Filling of test space
83 Gas pressure test
90 Gas shortage waiting time
Valve proving is performed depending on the parameter settings:
Simultaneously with the prepurge time and/or the afterburn time.

18 Bentone
Times
TSA1 1st safety time
TSA2 2nd safety time
t1 Prepurge time
t3 Postpurge time
t8 Postpurge time
t13 Afterburn time
t44 Interval 1
t52 Interval 2
Indices
1) Parameter: Short/long prepurge time for oil only
Short/long on time of oil pump – time
2) Only with valve proving during startup
3) Parameter: With/without alarm in the event of start prevention
4) If signal is faulty in the startup phase, phase 10 is next, otherwise
phase 70
5) Max. time safety phase, then lockout
6) Time from occurrence of start prevention to signaling
7) Only in case of valve proving during startup (valve proving via pressure
switch-min)
8) Only in case of startup without valve proving (valve proving via
pressure switch -min)
9) Inverse logic in case of valve proving via pressure switch-min
10) Parameter: Oil pressure min-input
1 = active from phase 38
2 = active from safety time
11) Only with fuel train Lo and 2 fuel valves
12) Parameter 223: Repetition limit value gas pressure switch-min in
connection with gas shortage program parameter
246 (phase 90)
13) Max. drop-in/response time for air pressure switch
14) Alternative to valve proving
15) Alternative to pressure switch-max (Pmax) or POC

19Bentone
Abbreviations
AL Alarm
FS Flame signal
GM Fan motor contactor
LP Air pressure switch
M Fan motor
P LT Pressure switch for valve proving
Pmax Pressure switch-max
Pmin Pressure switch-min
POC Proof of closure
PV Pilot valve
R Temperature or pressure controller
SB Safety limiter
SK Safety loop
STB Safety limit thermostat
SV Safety valve
WM Water shortage
V1 Fuel valve 1
V2 Fuel valve 2
VP Combustion pressure switch
Z Ignition transformer
Permissible position range
In Standby mode: Actuator is allowed to travel within the
permissible position range, but is always
driven to the home position; must be in the
home position for phase changes
0°/10%
90°/100%
Position as supplied (0°)
Actuator fully open (90°)
Input/output signal 1 (ON)
Input/output signal 0 (OFF)
Input permissible signal 1 (ON) or 0 (OFF)
Symbols
SA Actuator
SA-K Low-re position of actuator
SA-N Postpurge position of actuator
SA-R Home position of actuator
SA-V Rated load position of actuator
SA-Z Ignition load position of actuator

20 Bentone
4.4 Connection and internal diagram
Shielding:
For shielding the cables on the VSD, refer to:
• Siemens SED2 VSD Commissioning Manual (G5192), chapters 4 and 7, or
• Danfoss Operation Manual VLT 6000 (MG60A703), chapter Installation
X3-03X3-05
X3-04
X7-01
X75 X10-05 X3-02
X5-01 X9-04 X7-02
1 1 1 11 1 1 1 1
11
11
111
1
7546a14e/0913
+
End switch burner ange
(component of safety loop)
Supply signal for end switch burner ange
Fan motor contactor
Alarm
Continuous fan operation
Extra valve SV
Ignition Z
Fuel valve V3 / pilot PV
Power supply phase conductor (L)
Power supply neutral conductor (N)
Protective earth (PE)
Supply signal for safety loop
Safety loop
Fuel valve V2
Wiring point for series valve
Fuel valve V1
Fuel indication oil / gas
Reset / manual locking
Supply for external load controller
external load controller Open / Stage 3
external load controller (On / O)
Air pressure switch (LP)
QRA....
Supply signal (L)
GND
QRB.../ QRC...signal voltage
Ionization probe (ION)
Protection earth (PE)
Supply for fuel meter
Input fuel meter
Pressure switch leakage test gas (PLT) or GP (VPS)
Pressure switch-min-gas (Pmin) / -min-oil
Pressure switch-max-gas / -max-oil (Pmax) or POC
external load controller Open / Stage 2
Supply signal for air pressure switch (LP)