Enertech Bentone BG 300-2 Technical specifications

Providing sustainable energy solutions worldwide

178 001 72-3 2017-10-12

Installation- and maintenance instruction

BG 300-2

172 205 32 08-01

DESCRIPTION

Components

1. Switch 0-1

2. Switch I-II

3. Cover, inspection glass

4. Reset button

5. Air pressure switch

6. Damper motor

7. Inner assembly adjustment

(not town gas)

8. Flame cone

9. 

10. Air damper

11. Air intake

12. Ignition electrode

13. Electric panel

14. Indicating lamp Stage 2

15. Indicating lamp Stage 1

16. Fan wheel

17. Motor

18. Ionization electrode

19. Transformer

20. Inner assembly

21. Nozzle

22. Brake plate

Capacity chart according to EN 676

Output range

TECHNICAL DATA

The above dimensions are max. measurements. Depending on the compo-

nents used, the measurements may vary.

172 215 12 14-01

Length of burner tube Measure A Measure 5

Standard 145 125 ø120

Long design 245 225 ø120

100 372

220

475

ø108

185

470

Type designation BG 300

Dimensions

Capacity

Gas volume at a

min.

output Nm3/h 1)

Gas volume at a

max

output Nm3/h 1)

Max. inlet

pressure mbar

Rated inlet

pressure mbar

G20, Natural gas 50-200 520 300 20

G31, Propane 50-200 1,9 7,7 300 30

G25, Natural gas 50-180 6,3 22,5 300 25

G30, Butane 65-200 1,9 5,9 300 30

Connection Motor Ignition transformer

Natural gas, Propane, Butane 1-phase, 0,18 kW, Primary 230 V, 1, A

1" 2 800 r/m, 230 V Secondary 8 000 V

1 

G20 Natural gas 10,0 kWh/Nm3

G25 Natural gas 8,0 kWh/Nm3

G31 Propane 26 kWh/Nm3

G30 Butane 34 kWh/Nm3

Gas quantity and capacity vary ac-

cording to grade of gas and connec-

tion pressure.

1) A heat value in kWh/Nm3is used for the underlying calculation in normal



TECHNICAL DATA

172 215 29 08-01

DIMENSIONS OF FLANGE

ø175-240

M10

ø120

SKELETON DIAGRAMS, 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

modulaing operation is required

this valve is equippedwithcontrols

for variable opening.

Incorporated in the MultiBloc

6b.Safety valve

1)7.Valve proving system

8.Air damper motor

9.Air pressure switch

10.Gas burner control



according to EN 676.

1) Required over 1200 kW according

to EN 676.

172 415 05 07-01

When Bio gas is used, Bentone shall always be contacted.

Removal of fan house unit from

burner.

Loosen the screws. Swing out the fan

house. Remove the ionisation and

ignition cables from the electrodes.



Remove the combustion unit from the

     





as a pattern.

Removal of valve unit from burner

Remove the plug-in contact from the

multi-bloc. Loosen the union nut.

absolutely straight.

MOUNTING ON THE BOILER

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.

172 205 42 07-01

172 425 28 16-01

ELECTRIC EQUIPMENT

Gas burner control: LME22

Wiring diagram

If there is no Plug-in

contact (X4,X6) on the

boiler, connect to

the contact enclosed.

If S6 is missing connect T6 and T8.

1(4)

172 425 28 16-01

ELECTRIC EQUIPMENT

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 full load. A control is made that the air pres-



3. Air damper motor closes.

The air damper motor closes to low load . Then the ignition spark is formed.

4. Main and safety valves open



5. The safety time expires.





6. Operating position.

The burner is in operating position and can now change over to full load if the operat-

ing switch and the thermostat for full load are in positon ON. The burner can alternate

between full and low load depending on set temperature.

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.

2(4)

List of components

A1 Gas burner control

B1 Ionization electrode

F1 Operating fuse

H1 Lamp, low capacity

H2 Lamp, high capacity

H3 Alarm signal 230 V

M1 Burner motor

M2 Damper motor, L&S SQN75.254.A21B

P1 Time meter, total operating time

P2 Time meter, high capacity, total operating time

S1 Operating switch

S2 Operating switch, stage 2

S3 Control thermostat

S4 Temperature limiter

S5 Micro switch for hinged door

S6 Control thermostat, stage 2

S7 Main switch

S8 Air pressure switch

S9 Gas pressure switch

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

Y1 Gas solenoid valve 1

Y2 Gas solenoid valve 2

Mains connection in accordance with local regulations.

172 425 28 16-01

ELECTRIC EQUIPMENT

Control diagnosis under fault conditions and lockout indication

Gas burner control: LME....

Colour codes

Diagnostics alarm trigger

The red alarm signal lamp lights continuously after the alarm is disconnected.



Limit on start attempts



or goes out during operation. LME 11 … permits a maximum of three start attempts if

the start cycle is uninterrupted.

Continuous

Off

Red

Yellow

Green

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

  Flashing green

  Green-Red

Undervoltage  Yellow-Red

Disruption, alarm  Red

Flashing code for fault codes  Flashing red

Interface diagnostics  



Flash code Pause Flash code

Approx. 3 s

lights red Press the reset

button > 3 s

3(4)

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