Bentone Pro 450i M Technical specifications

Translation of the original
instructions.
Installation- and maintenance instruction
Pro 450i M
LMV37
VGD20.40 SKP15/25
178 023 75-2 P93783 2023-06-22

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
1. Manualer på övriga språk
2. www.bentone.com\nedladdning eller
scanna QR-koden.
3. Skriv in brännarens artikelnummer
som nns på din typskylt (se bild) och
välj ditt språk.
Detaljerad ecodesign information kan
laddas ner på:
www.bentone.com/ecodesign.
-en
1. Manuals in other languages
2. www.bentone.com\download
or scan QR-code.
3. Enter the burner`s article number on
your data plate (see picture) and select
language.
Detailed ecodesign information can be
downloaded at:
www.bentone.com/ecodesign.
-da
1. Manualer på andre sprog
2. www.bentone.com\download eller
scan QR-koden.
3. Indtast brænderens artikelnummer,
der ndes på typeskiltet (se billede), og
vælg dit sprog.
Detaljerede oplysninger om ecodesign
kan downloades på:
www.bentone.com/ecodesign.
-fr
1. Manuels dans d’autres langues
2. www.bentone.com\download ou
scannez le code QR.
3. Saisir le numéro d’article du brûleur
sur votre plaque signalétique (consultez
l’illustration) et sélectionnez la langue.
Des informations détaillées sur
l’écodesign peuvent être téléchargées
à l’adresse:
www.bentone.com/ecodesign.
-de
1. Gebrauchsanweisungen in anderen
Sprachen
2. www.bentone.com\download
oder scannen Sie den QR-Code.
3. Geben Sie die Artikelnummer des
Brenners auf Ihrem Typenschild ein,
(siehe Bild) und wählen Sie die Sprache
aus.
Detaillierte Informationen zum Ecodesign
können unter
www.bentone.com/ecodesign
heruntergeladen werden.
2
2 Bentone

3Bentone
Table of contents
1. General Information............................................................5
1.1 Delivery inspection........................................................................ 5
1.2 Safety ............................................................................................... 5
1.3 What to do if you smell gas......................................................... 6
2. Technical data.......................................................................7
2.1 Dimensions Pro 450i M................................................................ 7
2.3 Gas categories, approved gases................................................ 8
2.2 Capacity range............................................................................... 8
2.4 Technicalspecication ................................................................. 9
2.5 Workingeld.................................................................................. 9
2.6 Components................................................................................. 10
2.7 Skeleton diagram........................................................................ 12
3. Electric equipment.............................................................13
3.1 Safety system .............................................................................. 13
3.2 Components................................................................................. 13
3.3 Wiring diagram .......................................................................... 14
4. Automatic control unit LMV37 .........................................15
4.1 System structure/function description................................... 15
4.2 General information ................................................................... 16
4.3 Technical Data Basic unit LMV37.4.......................................... 16
4.4 Connection and internal diagram............................................21
5. Operation ...........................................................................23
5.1 LMV37 automatic control unit.................................................. 23
5.2 List of phase displays ................................................................. 25
5.3 Automatic control unit levels .................................................... 26
5.4 Setting the automatic control unit .......................................... 30
5.5 Backup and restore .................................................................... 49
5.6 Fault status message, display of errors and info ................. 53
5.7 Dispaly message of info............................................................. 57
5.8 Resetting the automatic control unit...................................... 58
5.9 Manual output ............................................................................. 59
6. Parameter list.....................................................................60
7. Error code list .....................................................................70
8. Installation..........................................................................85
8.1 General instructions................................................................... 85
8.2 Instructions .................................................................................. 85
8.3 Inspection and maintenance.................................................... 85
8.4 Preparation for assembly ......................................................... 85
8.5 Gas supply .................................................................................... 85
8.6 Electric connection ..................................................................... 85
8.7 Handling and lifting instruction ............................................... 86
9. Mounting ............................................................................87
9.1 Gas nozzle..................................................................................... 88
9.2 De-aerating................................................................................... 89
9.3 Leakage control........................................................................... 89
9.4 Calculate prepurge time, Industrial applications ................ 90
9.5 Calculationofgasow.............................................................. 91
10. Settings ...............................................................................92
10.1 Setting the combustion assembly........................................... 92
10.2 Setting the air damper............................................................... 92
10.3 Setting the gas damper............................................................. 92
10.4 Startup........................................................................................... 93
10.5 Control of combustion .............................................................. 93
10.6 Settingtheairpressureswitch ................................................ 94
10.7 Settingthegaspressureswitchmin....................................... 95
10.8 Settingthegaspressureswitchmax/
overloadprotectionswitch ....................................................... 96
11. Gas valve VGD20… SKP15/25 ............................................97
11.1 Technicalspecication ............................................................... 97
11.2 Overview ....................................................................................... 98
11.3 Installation position.................................................................... 99
11.4 Adjusting the gas valve.............................................................. 99
11.5 Actuator SKP15............................................................................ 99
11.6 Actuator SKP25............................................................................ 99
11.7 SQM Damper motor.................................................................101
12. Service ...............................................................................103
12.1 Burner Service Schedule, Gas ................................................103
12.2 Component replacement intervals........................................103
12.3 Combustion device ...................................................................104
12.4 Air damper..................................................................................105
12.5 Replacement of damper motor, air .......................................106
12.6 Replacement of damper motor, gas......................................107
12.7 Fan ...............................................................................................108
12.8 Vibrations....................................................................................109
12.9 Kontrollavamövervakningochjoniseringsström ...........110
12.10 Replacement of electrical components................................111
13. Handing over of the installation ....................................112
14. Troubleshooting...............................................................113
15. Service- and inspection protocol ...................................115

5Bentone
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.

6Bentone
• 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.

7Bentone
2. Technical data
The burner is intended for:
• Operation in installations according to EN 303, EN 676 and EN 746-2.
Fuels:
• Natural gas H, E, L, LL.
• LPG, Butane and Propane.
2.1 Dimensions Pro 450i M
172 515 84-4 2023-05-30
Length of
ame tube
Flame tube
measure A
Flame tube
measure B
Flame tube
measure C
Flame tube
measure D
256 226 ø160 ø129 ø162
356 326 ø160 ø129 ø162
456 426 ø160 ø129 ø162
** Min. recommended distance to oor.
E F G H I J K L **M
526 715 255 279 233 316 436 255 200
N O P Q R S
35 400 37 500 210 32
**M
E
B
GD
IF
C
H
A
K
J
L
160303-759
N O P R S
Q

8Bentone
K
L
M
2.1.1 Measurements for connection to the boiler
K L M
14 (Ø 210) Ø 255-290 ø170
2.3 Gas categories, approved gases
Only dry gas is permitted for use.
450 / 450i
G20 120 - 550 12.7 58.2 360
G25 120 - 550 14.8 67.7 360
G30 120 - 550 3.7 17.1 360
G31 120 - 550 4.9 22.5 360
160303-681-2
Capacity
kW
Gas quantity
at min. power
Nm3/h
Gas quantity
at max. power
Nm3/h
Max.
connection
pressure mbar
Min
connection
pressure mbar
See data plate.
Gas quantity and capacity vary according to grade of gas and connection pressure.
2.2 Capacity range
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
20 mbar
II2H3B/P AT, CH, CY, DK, FI, LT, RO, SE, SK 20 mbar
II2H3P GB, IE 20 mbar
II2L3B/P NL, RO 20 mbar
II2E3B/P PL 20 mbar
I2E(R)B BE 20 mbar
I3P BE 20 mbar
160302-239-3

9Bentone
!Do not exceed working
eld.
2.5 Working eld
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.
Pro 450i M
Main supply, Operation 1) 2) 230V, 1~, 0.6A, 50Hz, IP54
Main supply, Motor 1) 230/400V, 3/1.7A
Max fuse rating 10A
NOX-class 3
Noise level 88dBA
1) Max operating current, see data plate.
2) Motor excluded.
-1
0
1
2
3
4
5
6
7
8
9
100 150 200 250 300 350 400 450 500 550 600
mbar
kW
120-550 kW
160303-250

10 Bentone
2.6 Components
321
76
8
4
5
9 10
11
14
13
12

11Bentone
2.6.1 Components – Electrical cabinet
(Automatic control unit)
1. Flame tube
2. Fixing ange
3. Cover, fan housing
4. Cover, inspection glass
5. Air pressure switch
6. Motor
7. Transformer
8. Damper motor, air
9. Air damper
10. Air intake
11. Gas valve
12. Gas pressure switch, min
13. Damper motor, gas
14. Gas pressure switch, max
15. Ignition electrode
16. Brake plate
17. Ionization electrode
18. Nozzle
19. Main switch
20. Automatic control unit LMV
21. AZL display for LMV Automatic control unit
22. Reset button
23. Switch 0-I
24. Contactor
25. Overload protection
26. Fuse
15
18
16
17
21 23
26
24
25
19 2220

12 Bentone
172 545 11 2023-05-17
2.7 Skeleton diagram
1. Ball valve
2. Filter
3. Pressure regulator
5a. Gas pressure switch, min./Leakage control
5b. Gas pressure switch, max.
6a. Main valve
6b. Safety valve
7. Gas damper
9. Air pressure switch
!This burner must not be used for biogas without rst
contacting Enertech.
1 2 35a 5b
6b6a 7
9
Gas valve

13Bentone
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 Components
A1 Burner control
B1 Ionization electrode
F1 Fuse
K1 Contactor + Overload protection
M1 Motor
S1 Operation switch
S7 Main switch
S8 Air pressure switch
S9 Gas pressure switch, min
S10 Gas pressure switch, max
T1 Ignition transformer
X1 Connection terminal board
X20 Connection terminal board
X53 Connection, Damper motor - Air
X54 Connection, Damper motor - Gas
X56 Connection, Display
Y1 Solenoid valve 1
Y2 Solenoid valve 2
!Mains connection and fuse
in accordance with local
regulations.
!The installation of a safety
system is required to start
the burner.
172 615 59-3

14 Bentone
3.3 Wiring diagram
Bk Black Bn Brown Bu Blue Gn Green Gn/Ye Green/Yellow Gy Grey
Og Orange Pk Pink Rd Red Vt Violet Wh White Ye Yellow
EK2
E106385

15Bentone
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 67-2
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

16 Bentone
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

17Bentone
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

18 Bentone
!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.

19Bentone
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

20 Bentone
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
RTemperature 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
ZIgnition 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