Bentone BG 300LN Technical specifications
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178 026 72-2 2016-06-20
Installation- and maintenance instruction
BG 300LN
1
DESCRIPTION BG300/400LN
1. Switch man-aut
2. Switch 0-1
3. Change -over switch
increasedecrease
4. Indicating lamp Stage 1
5. Reset button
6. Air pressure switch
7. Damper motor
8. Connection flange
9. Blast tube
10. Gas nozzle
11. Connection gas fittings
12. Multibloc
13. Air intake
14. Shut-off cock
15. Cover, inspection glass
16. Transformer
17. Gas burner control
18. Electric panel
19. Electrical connection
20. Motor
172 205 99 03-01
14
15
16
17
18
19
20
45 6
3
178910
2
13
11
12
1172 215 53 03-01
TECHNICAL DATA
Type designation BG 300LN
The above dimensions are max. measurements. Depending on the com
ponents used, the measurements may vary.
Length of Measure A
Standard 230 217
ø110
M10
ø175-240
1/2
245185
ø100
ø108
330
220
485 A345
2172 215 53 03-01
TECHNICAL DATA
Type designation BG 300LN
Connection 3) Motor Ignition transformer
Natural gas
1-fas, 0,18 kW Primary 230 V, 1 A
1" 2 800 r/m, 230 V Secondary 8 000 V
1,3 A
1) G20 = Natural gas Calorific value 10 kWh/Nm3
G25 = Natural gas Calorific value 8,2 kWh/Nm3
2) Dimension and capacity depending on gas quality and
available pressure
Output range
Capacity Gas volume at a min. Gas volume at a max Max. inlet Rated inlet pressure
kW output Nm3/h 1) output Nm3/h 1) pressure mbar mbar
G20 51-120 kW1) G20 5,1 G20 12 360 20
G25 45-120 kW G25 5,5 G25 14,6
Capacity chart according to EN 676
2/2
6172 415 05 03-01
SKELETON DIAGRAM
2-stage or modulating burners
1. Ball valve
2. Filter
3. Governor
4. Pressure gauge with shut-off cock
5a. Gas pressure switch, mini
5b. Gas pressure switch, maxi
6a. Main valve, 2 -stage. When modulating operation is required,
this valve is equipped with controls for variable opening.
6b. Safety valve
1)7. Valve proving system
8. Air damper motor
9. Air pressure switch
10. Gas burner control
Pos. 5b, 7: Components not required according to EN 676.
1) Required over 1200 kW according to EN 676.
When biogas is used, Bentone shall always be contacted.
7
6b 6a
5a
4
2
1
5b
10
9
8
3
Incorporated in the MultiBloc
7
MOUNTING ON THE BOILER
Fit the burner to the boiler by means of 4 bolts M10 (do not forget the
flange gasket). For flange and bolt dimensions see Technical Data or use
the fixing flange as a pattern. If for some reason you want to separate the
combustion part from the fan housing part to mount the burner on the
boiler, see General Instructions.
Mounting of the multi-bloc on the burner
Connect the multi-bloc to the burner head. Connect PLto the fan housing.
Connect the two cables by means of the plug-in contact to the multi-bloc.
Do not mix up the cables to the valves and to the gas switch.
IMPORTANT! The burner cannot start, if these cables have been mixed
up. Do not forget to connect the plug-in contact to the leakage control,
if any.
Installation example
Connect the gas to the burner by means of the ball valve. Ensure that the
union nut, ball valve and tubing make it easy to remove the burner for
inspection and service.
172 155 01 03-01
a
PL
8172 425 51 08-01
*
ELECTRIC EQUIPMENT
Gas burner control: LME22 Wiring
diagram
1(2)
* If there is no Plug-in contact (X4,X16) on the boiler,
connect to the contact enclosed.
9172 425 51 08-01
ELECTRIC EQUIPMENT
List of components
A1 Gas burner control S12 Change-over switch, Increase-
A2 Power control Reduce
B1 Ionization electrode S15 Control thermostat, 3-pole
F1 Operating fuse (only for 2-stage sliding)
H1 Operating lamp T1 Ignition transformer
H3 Alarm signal 230 V X1 Connection terminal board
M1 Burner motor X2 Earth terminal
M2 Damper motor, X3 Plug-in contact, burner
L&S SQN75.624A21B X4 Plug-in contact, boiler
P1 Time meter, X15 Plug-in contact, power
total operating time controller, burner
S1 Operating switch X16 Plug-in contact, power
S3 Control thermostat controller
S4 Temperature limiter S9 Gas pressure switch
S5 Micro switch for hinged door Y1 Gas solenoid valve 1
S7 Main switch Y3 Safety solenoid valve
S8 Air pressure switch
S11 Change-over switch, Aut.-Man.
Mains connection in fuse in accordance with local regulations.
2(2)
Gas burner control: LME22
Function
1.Operating switch ON-Thermostat ON-Gas pressure switch ON-Air
damper closed.
A control is made that the air pressure switch does not indicate fan
pressure. Then the burner motor starts.
2.Air damper motor opens.
The air damper motor opens the damper to max. position. A control is
made that the air pressure switch indicates sufficient fan pressure.
3.Air damper motor closes.
The air damper motor closes to min. load position. Then the ignition spark
is formed.
4.Main and safety valves open.
The gas is ignited. The ionization electrode indicates a flame.
5.The safety time expires.
The ignition spark goes out. The safety time expires. If there is no flame or
if for some reason the flame disappears after this time limit, the burner
control locks out.
6.Operating position.
The burner is in operating position and can now change over to the capa-
city controlled by the regulator.
7.Stop. The operation of the burner can now be interrupted by means of
the operating switch or the thermostat.
The control locks out. The red lamp in the control is lit. Restart the burner by pressing the reset
button.
20 172 445 02 08-01
ELECTRICAL EQUIPMENT
Control program when disruption; disruption display
Gas burner control: LME....
Diagnostics alarm trigger
Colour codes
Limit on start attempts
LME 11 … limits the number of start attempts if the flame does not ignite on start-up
or goes out during operation. LME 11 … permits a maximum of three start attempts
if the start cycle is uninterrupted.
The red alarm signal lamp lights continuously after the alarm is disconnected.
Diagnostics for alarm triggers can be read as specified by the following sequence:
Colour code table for multi-coloured signal lamps (Light diodes)
Status Colour codes Colours
Waiting time «tw», other waiting times Off
Ignition phase, ignition checked Flashing yellow
Normal operation Green
Operation, poor flame signal Flashing green
Prohibited flame signal during start up Green-Red
Undervoltage Yellow-Red
Disruption, alarm Red
Flashing code for fault codes Flashing red
Interface diagnostics Red flickering
Continuous
Off
Red
Yellow
Green
1(2)
Light period (waiting time 10 s)
AL
FS
Flash code Pause Flash code
Approx. 3 s
lights red Press the reset
button > 3 s
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1
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