Bentone BG 300LN Technical specifications

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178 026 72-2 2016-06-20

Installation- and maintenance instruction

BG 300LN

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

45 6

178910

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.

6b 6a

Incorporated in the MultiBloc

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

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)

Flash code Pause Flash code

Approx. 3 s

lights red Press the reset

button > 3 s

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