Bentone BG 700-2 Biogas User manual

Providing sustainable energy solutions worldwide
178 151 80-3 P93783 2023-03-15
Installation- and maintenance instruction
BG 700-2 Biogas
BP230UVFR-S2
DMV-DLE 525/11
MVD 220/5
VPS 504
FRS 520
Translation of the original instructions.

2Bentone
example Beispielexempel
352011030141
Designation
Type
Model
Serial no.
Motor supply
Main supply
MADE IN SWEDEN BY
LIGHT OIL 35-90kW 1,25-6,0 cSt 7-14bar
BF 1 KS 76-24
BF 1
BF 1 KS 76-24
1234567
1~230V 1,0A 50Hz IP 20
Man.Year 2019
Cap. Min-Max
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

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 700-2 .................................................................. 6
2.2 Capacity range............................................................................... 7
2.3 Gas categories, approved gases................................................ 7
2.4 Technicalspecication ................................................................. 8
2.5 Workingeld.................................................................................. 8
2.6 Components................................................................................... 9
2.7 Skeleton diagram 2-stage burner, Biogas.............................. 10
2.8 Adjusting the gas train............................................................... 11
3. Electric equipment.............................................................12
3.1 Safety system .............................................................................. 12
3.2 Components................................................................................. 12
3.3 Wiring diagram .......................................................................... 13
4. Control.................................................................................14
4.1 Technical data .............................................................................. 14
4.2 LED indicator lamps.................................................................... 14
4.3 Explanationofthedierentsequencemodes...................... 15
4.4 BurnerPro LED fault/lock code table.......................................16
5. Installation..........................................................................20
5.1 General instructions................................................................... 20
5.2 Instructions .................................................................................. 20
5.3 Inspection and maintenance.................................................... 20
5.4 Preparation for assembly ......................................................... 20
5.5 Gas supply .................................................................................... 20
5.6 Electric connection ..................................................................... 20
5.7 Handling and lifting instruction ............................................... 21
6. Mounting ............................................................................22
6.1 Gas nozzle..................................................................................... 23
6.2 De-aerating................................................................................... 24
6.3 Leakage control........................................................................... 24
6.4 Calculate prepurge time, Industrial applications ................ 25
6.5 Calculationofgasow.............................................................. 26
7. Settings ...............................................................................27
7.1 Startup........................................................................................... 27
7.2 Control of combustion .............................................................. 27
7.3 Settingtheairpressureswitch ................................................ 28
7.4 Settingthegaspressureswitch,min...................................... 29
7.5 Settingthegaspressureswitchmax/
overloadprotectionswitch ....................................................... 30
7.6 Settings Damper motor, 2-stage ............................................. 31
8. Leakage control VPS 504 ..................................................32
8.1 Technical data .............................................................................. 32
8.2 Programsequence ..................................................................... 32
8.3 Electrical connection ................................................................. 33
9. Gas pressure regulator .....................................................34
10. Double Solenoid Valve DMV-DLE......................................36
10.1 Technical data .............................................................................. 36
10.2 DMV-DLE 512-520/11................................................................. 37
10.3 DMV-DLE 525/11......................................................................... 37
11. Gas solenoid valve MVD 210/5 / MVD 215/5...................39
12. Service .................................................................................41
12.1 Burner Service Schedule, Gas .................................................. 41
12.2 Component replacement intervals.......................................... 41
12.3 Combustion device ..................................................................... 42
12.4 Air damper.................................................................................... 43
12.5 Replacement, Damper motor air............................................. 44
12.6 Fan ................................................................................................. 45
12.7 Vibrations...................................................................................... 46
12.8 Flame monitoring and ionisation current check .................. 47
12.9 UV-5 detector............................................................................... 47
12.10 Replacement of electrical components.................................. 48
13. Handing over of the installation ......................................49
14. Troubleshooting.................................................................50
15. Service- and inspection protocol .....................................52

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 07-4 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.
• Dry biogas max 0.1 Vol% H2S and min 50% CH4.
2.1 Dimensions BG 700-2
* 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
Components are approved for dry biogas with a maximum content of 0.1% H2S.
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
BG 700
G20 300-1500 31.7 158.7 360
G25 300-1500 36.9 184.5 360
300-1200 50.0 200.0 360
160303-698
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.
Biogas
Gas quantity and capacity vary according to grade of gas and connection pressure.

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 700-2
Main supply, Operation 1) 2) 230V, 1~, 2.3A, 50Hz, IP20
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

9Bentone
1. Flame tube
2. Brake plate
3. Nozzle
4. Inner assembly
5. Fixing ange
6. Transformer
7. Burner Control
8. Contactor + Overload
protection
9. Cover, inspection glass
10. Electrical connection
11. Fan wheel
12. Motor
13. Connection, gas
14. Gas valve (MultiBloc)
15. Gas pressure switch, min
16. Ball valve
17. Damper motor
18. Reset button
19. Air pressure switch
20. Power switch 0-I
21. Indication lamp, Stage 1
22. Power switch I-II
23. Indication lamp, Stage 2
24. Air damper
25. Air intake
26. Ignition electrodes
27. Flame detector
2.6 Components
160303-695
160303-696
1
2320 2221
52 3
18 17
6 7 8
12
11
10
9
4
15 14 1319 16
2524
26
27

10 Bentone
172 515 72-2
2.7 Skeleton diagram 2-stage burner, Biogas
Gas train
1. Ball valve
2. Filter
3. Pressure regulator
4. Pressure outlet
5. Gas valve
6. Leakage control (VPS)
7. Safety valve on-off
8. Gas pressure switch
Pe Pressure before valve
Pa Pressure between valves
Adjusting points:
a. Main  ow restrictor stage 2
(max load)
b. Gas pressure adjustment
c. Main  ow restrictor stage 1
(min load)
d. Hydraulic brake stage 1 to 2
8
5 6 73
Pe Pa
21
4
a bd
c

11Bentone
2.8 Adjusting the gas train
The burner is test run with propane before delivery.
The safety valve (7) must be fully open during operation. At initial setting, the
adjusting screw (c) must have lifted the valve for stage 1 by 1-2 turns.
On start-up, safety valve (7) and valve on double solenoid valve (5) open, gas
 ows through the valve for stage 1.
When the burner has started on stage 1, proceed to stage 2 and start adjusting
this stage  rst. When stage 2 is complete, adjust stage 1.
Adjustment of stage 2 is done with adjusting screw (a) on the double solenoid
valve (5) which regulates the opening of the valve controlling the gas for
stage 2. The burner is now receiving gas for maximum load, adjust the power
on stage 2 to the desired load and set the air damper for stage 2 and nozzle
assembly for a good combustion.
The power is adjusted for stage 2 by adjusting the opening of valve 1 with the
adjusting screw (a) and the gas pressure is adjusted on the pressure regulator
screw (b). The air damper and nozzle assembly shall also be adjusted to obtain
the correct air volume and good combustion.
Adjustment of stage 1 on the burner is done when stage 2 is complete, adjust
the stage 1 valve on the double solenoid valve (5) using the adjusting screw (c).
If this is screwed in, the gas  ow to the burner is increased by lifting the valve.
This valve is always open and this opening is what gives the min-load. Adjust
the air damper for stage 1 for good combustion.

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.
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
165 615 86-2
!Mains connection and fuse
in accordance with local
regulations.
A1 Burner control
A3 Leakage control, VPS504
F1 Fuse
F2 Fuse
F3 Fuse
H1 Lamp, low capacity
H2 Lamp, high capacity
K1 Contactor + Overload protection
M1 Motor
M2 Damper motor
R1 UV-detector
S1 Operating switch
S2 Operating switch, Stage 2
S3 Regulating/Operating thermostat
S4 Temperature/Pressure limiter
S5 Safety switch for hinged door
S6 Control thermostat, Stage 2
S7 Main switch, 3-phase
S8 Air pressure switch
S9 Gas pressure switch, min
S10 Gas pressure switch, max.
S20 Main switch, 1-phase
T1 Ignition transformer
X1 Connection terminal board
X2 Earth terminal
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
Y1 Solenoid valve 1
Y2 Solenoid valve 2
Y3 Safety valve

13Bentone
3.3 Wiring diagram
E106358
Bn Brown Bu Blue Gn Green Ye Yellow Gn/Ye Green/Yellow Bk Black
Gy Grey Rd Red Wh White Og Orange Vt Violet

14 Bentone
FAN Lights up when voltage is supplied to the fan motor (terminal 6)
OPEN DAMPER
6
Flashes when the damper motor runs to maximum position.
When the switch for the maximum damper motor position
closes, this LED will light continuously.
CLOSE DAMPER
5
Flashes when the damper motor runs to minimum position.
When the switch for the minimum damper motor position closes,
this LED will light continuously.
AUTO
4
Lights up when the Burner control is in normal operating mode.
IGNITION
3
Indicates ignition
FLAME
2
Lights up when a  ame is detected by the  ame detector.
ALARM/STATUS In lockout mode, the Alarm lamp lights up and the other LEDs
light up to indicate lockout. Refer to “Fault codes”.
The LEDs can show the  ame strength in Control mode by pressing the reset
button for 3 seconds when the Flame LED  ashes during start-up. In Control
mode, the Status LED shines yellow, the Fan LED  ashes, and LEDs 2-6 show the
 ame signal strength. Each LED corresponds to 20% of the total  ame signal.
5 lit LEDs correspond to 100% and 2 LEDs correspond to 40%.
BP230UVFR-S2 BP230UVFR-S3 BP230UVFR-S4
Pre-purge time (t1) 30.7 s 37.2 s 60 s
Pre-ignition time (t3) 6 s 2.5 s 2.5 s
Safety time (TSA) 3 s 5 s 5 s
Post-purge time (t6) 16.8 s 14.9 s 15 s
Reaction time for low interrupt 1 s 1 s 1 s
Ambient temperature BP -40 to +60°C -40 to +60°C -40 to +60°C
Ambient temperature UV5 -20 to +60°C -20 to +60°C -20 to +60°C
Max. current, terminals 6-7 2 A 2 A 2 A
Max. current, other terminals 1 A 1 A 1 A
Ionisation current 3-10 µA 3-10 µA 3-10 µA
4. Control
4.1 Technical data
4.2 LED indicator lamps
BurnerPRO’s burner control has seven LEDs which indicate the operating
status of the control unit and the cause of the lockouts.
Each LED has an icon describing its function.
172 615 70-2 2022-09-28

15Bentone
4.3 Explanation of the dierent sequence modes
1. Operation
This is the control unit voltage supply.
2. System test
In this status mode, the control unit undergoes
an internal test to verify correct functionality of
the hardware and software.
3. Preconditions for burner start-up
The control unit veries that the air pressure
switch is in the depressurised position and a test
of the fuel cut-off valve is carried out.
4. Heating requirement
The operating thermostat closes and voltage is
supplied to connection 5 so that the control unit
can start the burner.
5. Pre-purge begins
The control unit starts the fan.
Connections 6 and 7.
6. Damper motor opens
Control unit connection 9 sends a command to
the damper motor to run at Max. mode. The
control unit detects that the damper motor’s end
position switch indicates successful transition
to the Max. load mode by supplying voltage to
the connection 8 input. The control unit also
performs a test to ensure that the air sensor
detects airow by monitoring connection 14.
7. Pre-purge
The combustion chamber is ventilated.
8. Damper motor closes
Following pre-purge, the control unit closes
connection 10. The control unit detects that
the damper motor is in the Low Load mode by
supplying voltage to connection 8 on the control
unit.
9. Ignition on
The control unit supplies voltage to the ignition
transformer by activating connection 16.
10. Fuel on The control unit activates the fuel valve
by supplying voltage to connections 17 and 18 as
well as to direct ignition systems.
11. Flame indication
Ignition transformer turns off. The ame signal is
tested during this stage. If no ame is detected,
the burner enters Lockout mode.
12. Operating mode
Once a ame is stable, the control unit transitions
to Operating mode. There must be a ame signal.
Voltage is supplied to connection 20.
13. Shutdown
Shutdown occurs when the heating requirement
is met and power is cut off to the operating
thermostat connection 5 . The control unit closes
the fuel valves by cutting off power to outputs
18 and 20. The fan post-purges the combustion
chamber.
14. Lockout
The control unit enters lockout mode when an
internal or external fault is detected. The reset
button and the remote-reset connection can be
used to disable Lock mode. However, the control
unit will revert to lockout mode if the fault is not
rectied.
Burner Lockout
When lockout occurs, the LEDs indicate the cause. The control unit status is
saved in the memory, even in the event of a power outage. By pressing the
manual reset button on the control unit or remote reset.
!Note! At remote reset: maximum 5 reset attempts within a 15 min
period, after which qualied personnel must examine the burner
before further reset attempts are made.

16 Bentone
4.4 BurnerPro LED fault/lock code table
NO. FAULT LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 POSSIBLE SOLUTION
OPERATION LED = ON Fan Open
damper
Closed
damper
Auto Ignition Flame Status
ICON
1DIAGNOSTIC ERROR, MAIN
MCU INLET
RED Initial diagnostic error. Ensure correct status of inputs and outputs
when the unit is turned on.
2 LOCAL RESET RED User-initiated manual reset/lockout or defective reset switch.
3AIR SENSOR   RED Air sensor signal [connection 14] could not be detected by the end
of the safety time, or loss of the air sensor signal during burner operation
4 DIAGNOSTIC ERROR RED “The system detected voltage at terminal 16, 17, 18, or 19 at the
incorrect time, or no voltage detected when necessary. Check cabling and makes sure the system is running on a single line phase (50/60Hz)”
5IONISATION FLAME LOSS   RED Flame loss. Inspect the system, check the gas pressure,  ame
detector, cabling, etc.
6IONISATION CIRCUIT FAULT   RED Replace the control unit. Contact reseller/distributor.
7INTERNAL COMMUNICATION
ERROR
   RED Reset the system to continue normal operation. Contact reseller/
distributor if the fault persists.
8REMOTE RESET RED The user has pressed Remote Reset or the remote controller has
short-circuited.
9IONISATION FAULT   RED Replace the control unit. Contact reseller/distributor.
10 MAIN PROGRAM SEQUENCE
ERROR
  RED Replace the control unit. Contact reseller/distributor.
11 RAM TEST    RED Replace the control unit. Contact reseller/distributor.
12 PROGRAM SEQUENCE ERROR   RED Replace the control unit. Contact reseller/distributor.
13 READING ERROR INPUT    RED Check cabling and makes sure the system is running on a single
phase (50/60Hz)
14 TIMER2 ERROR    RED Replace the control unit. Contact reseller/distributor.
15 CPU TEST FAILED     RED Replace the control unit. Contact reseller/distributor.

17Bentone
NO. FAULT LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 POSSIBLE SOLUTION 16 FLAME LOSS   RED Visually inspect the ame detector and conrm that the pilot light
was lit during start-up. Check the fuel supply system.
17 CABLE FAULT   RED The system detected voltage at terminal 16, 17, 18, or 19 at the
incorrect time, or no voltage detected when necessary. Check cabling and makes sure the system is running on a single phase (50/60Hz)
18 SAFETY RELAY FAULT    RED Replace the control unit. Contact reseller/distributor
19 FUEL VALVE OPEN   RED Check fuel valve cabling. The valves may not be fully closed.
20 FLAME LOSS    RED Visually inspect the ame detector and conrm that the main ame
was lit during start-up. Check the fuel supply system.
21 WELDED SAFETY RELAY    RED Replace the control unit. Contact reseller/distributor.
22 SELF TEST     RED Replace the control unit. Contact reseller/distributor.
23 ROM ERROR   RED Replace the control unit. Contact reseller/distributor.
24 FLAME LOSS DURING
OPERATION
   RED Check the cabling. Check the ame detector. Check the fuel supply
system.
25 RAM ERROR    RED Replace the control unit. Contact reseller/distributor.
26 INTERNAL FAULT     RED Replace the control unit. Contact reseller/distributor.
27 NOT USED 28 NOT USED 29 AMBIENT TEMPERATURE     RED Ambient temperature below -40 °C or above 70°C
30 ROM ERROR      RED Replace the control unit. Contact reseller/distributor.
31 IONISATION SHORT-CIRCUIT RED Possible external short-circuit between terminals 23 and 24. Contact
reseller/distributor if the fault persists.
32 TIME LIMIT EXCEEDED FOR
CONTROL MODE
  RED 30-minute activation time passed.
33 STANDBY FALSE FLAME RED False ame detected in Standby mode.
34 NOT USED RED 35 INTERNAL RESET   RED Internal software reset of control unit. Contact reseller/distributor if
the fault persists.

18 Bentone
NO. FAULT LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 POSSIBLE SOLUTION 36 SOFTWARE RESET    RED Internal software reset of control unit. Contact reseller/distributor if
the fault persists.
37 WAITING TIME INPUTS    RED The system was unable to perform airow sensor test and/or valve
closure test. Check the cabling. Check the air sensor and/or fuel valve switch.
38 INTERNAL RESET     RED Internal software reset of control unit. Contact reseller/distributor if
the fault persists.
39 SOFTWARE RESET   RED Internal software reset of control unit. Contact reseller/distributor if
the fault persists.
40 HARDWARE RESET    RED Replace the control unit. Contact reseller/distributor if the fault
persists.
41 HARDWARE RESET    RED Replace the control unit. Contact reseller/distributor if the fault
persists.
42 CONTROL PROGRAM FROZEN     RED Replace the control unit. Contact the distributor/factory. 43 CONTROL PROGRAM FROZEN    RED Replace the control unit. Contact reseller/distributor. 44 TIMER2 ERROR     RED Replace the control unit. Contact reseller/distributor. 45 LOW VOLTAGE ERROR     RED Check mains power. Contact reseller/distributor if the fault persists. 46 LOW VOLTAGE ERROR      RED Check mains power. Contact reseller/distributor if the fault persists. 47 UV DETECTION FAULTY   RED Replace the control unit. Contact reseller/distributor.
48 INTERNAL FAULT    RED Replace the control unit. Contact reseller/distributor.
49 INTERNAL FAULT    RED Replace the control unit. Contact reseller/distributor. 50 IGNITION FEEDBACK     RED The system detected voltage at terminal 16 at the incorrect time, or
no voltage. Check cabling and ensure sucient earthing.
51 PILOT FEEDBACK    RED The system detected voltage at terminal 17 at the incorrect time, or
no voltage. Check cabling and ensure sucient earthing.
52 MAINP FEEDBACK     RED The system detected voltage at terminal 19 at the incorrect time, or
no voltage. Check cabling and ensure sucient earthing.
53 WAITING TIME FEEDBACK
LIMIT EXCEEDED
    RED Loss of feedback from the damper motor for more than 10 minutes.
Check the cabling. Check the damper motor.
54 MAIND FEEDBACK      RED The system detected voltage at terminal 18 at the incorrect time, or
no voltage. Check cabling and ensure sucient earthing.
55 DIAGNOSTICS INTERRUPTED    RED Replace the control unit. Contact reseller/distributor.

19Bentone
NO. FAULT LED 1 LED 2 LED 3 LED 4 LED 5 LED 6 LED 7 POSSIBLE SOLUTION 56 UV FALSE FLAME     RED False ame detected prior to ignition. Check the cabling. Check the
ame detector. Ensure sucient earthing.
57 IONISATION FALSE FLAME     RED False ame detected prior to ignition. Check the cabling. Check the
ame detector. Ensure sucient earthing.
58 OPEN FEEDBACK READING      RED The system detected voltage at terminal 8 at the incorrect time, or
no voltage. Check cabling and ensure sucient earthing.
59 ADJACENT POLE SHORT-
CIRCUIT
    RED Replace the control unit. Contact reseller/distributor.
60 LOCAL RESET       RED The local reset button has been pressed in for more than 10
seconds, or the reset button is stuck.
61 FUEL VALVE OPEN     RED Fuel valve open at incorrect time.
62 STRONG UV FLAME      RED Flame detector too close to the ame. Increase the distance
between the ame detector and the ame.
63 INTERNAL FAULT RED Replace the control unit. Contact reseller/distributor.

20 Bentone
172 535 09-2
5. Installation
5.1 General instructions
Installation must be carried out in accordance with current regulations and
instructions.
The supplier/installer of the facility is obliged to familiarize himself with
all regulations so that the installation meets the requirements of the local
authorities.
Installation, assembly and settings must be performed to obtain the best
possible function. Only gas intended for the gas burner may be used.
5.2 Instructions
It is the installer’s responsibility to instruct the user in detail in the functions of
the gas burner and the entire system.
5.3 Inspection and maintenance
The system must be maintained at the interval specied in the service
schedule. If the burner is in a dirty environment, service should be done at
more frequent intervals.
5.4 Preparation for assembly
Check that the burner’s dimensions and capacity range match the current
boiler. The power information on the type plate refers to the burner model’s
min. and max. effect.
5.5 Gas supply
In order to obtain good operational safety, it is important that the installation
of the gas distribution system is carried out correctly, considering the
following:
• Check that the burner is approved for the gas quality of the
installation.
• Check that the burner gas components are approved for the specied
gas pressure, see type plate.
• Installation must be carried out in accordance with current standards.
• Pipe lines should be assembled so that service can easily be
performed on the boiler and burner.
• Pipe lines should be assembled so that any contaminants do not come
into contact with the gas components.
5.6 Electric connection
• Before work on the electrical connection, the current must be
disconnected so that the installation is isolated.
• Connection must be done in accordance with the applicable
regulations.
• Connection must conform to the wiring diagram.
!If any electrical connection other than that recommended
by Enertech is used, there is a risk of property damage and
personal injury.