Bentone BG 450 M Manuale utente

178 016 76

Installation- and maintenance instruction

BG450M

DESCRIPTION

Warning – Read the manual before assembling or commissioning.

– The contents of this manual are to be observed by all who work for any

reason on the unit and its appertaining system parts.

– This manual is intended especially for authorised personnel.

– This manual is to be regarded as part of the burner and shall always be

available near the place of installation.

– The burner is only to be installed by qualied personnel

– Check that the burner is suitable for the boiler´s power range.

– The burner is to be installed such that it complies with any local

regulations relating to electrical safety, boilers and fuel distribution.

– Check that the burner is approved for the gas quality intended used.

– No burner safety systems are to be disengaged.

– The tter is to ensure that the boiler room is supplied with fresh air

ventilation that is sufcient in accordance with local standards.

– Before servicing, shut off the fuel supply and the power supply to the

burner.

– The outer temperature of the boiler´s components can exceed 60 °C.

– Check that the guide stop is installed before servicing.

– Take great care when servicing. Trap and pinch risks can be present.

– The boiler´s sound level can exceed 85 dBA during operation. Use ear

protectors when present in the boiler room

Safety directions – The electrical installation shall be made according to valid regulations

for heavy current and in a professional way, so that the risk of leaking

gas, re or personal injury is avoided.

– If another electrical connection is used than the one recommended by

Enertech, there might be a risk of material damage or personal injury.

– Notice should be carefully taken by the installer that no electrical cables

or gas pipes get squeezed or damaged when installing or at service

– If the boiler is provided with an opening door, this should be interlocked

with a door switch.

Acceptance inspection – Ensure that everything is delivered and that there is no transport

damage.

– If there is anything wrong with the delivery, please report it to the

supplier.

– Any transport damage should be reported to the forwarding company.

Preparations for installation – Ensure that the size and capacity range of the burner are suitable for

the boiler.

– Power data on the data plate refer to the minimum and maximum power

of the burner.

172 155 15 08-01

Warning

172 205 92 08-01

DESCRIPTION

Components

1. Flame cone

2. Inner assembly

3. Fixing ange

4. Electric panel

5. Fan wheel

6. Fan house

7. Shrouded disc

8. Ignition electrode

9. Ionisation electrode

10. Motor

18. Switch l-ll

(For modulating burner:

Change-over switch manually-

automatically)

19. Indicating lamp Stage 1

20. Switch 0-1

21. Contactor

22. Control box

23. Ignition transformer

24. MultiBloc

11. Connection gas ttings

12. Air intake

13. Air damper

14. Air pressure switch

15. Conical shield plate

16. Fuse

17. Indicating lamp Stage 2

(For modulating burner: Change-

over switch increase-decrease)

640

262 A 538

252

ø160

ø130

500

328

252

Armatur 2) Motor Ignition transformer

Natural gas LPG 1-fas, 450W, 2 800 r/m, Primary 230 V, 1A

1/2"230/240 V Secondary 8 000 V

2) Town gas

CAPACITY CHART ACCORDING TO

EN 676

Type 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

Natural gas/LPG Natural gas LPG Natural gas LPG Natural gas LPG

450 120-550 12 4,6 55 21 360 40 30-50

2) Town gas 2) Town gas 2) Town gas 2) Town gas

Out range

TECHNICAL DATA

Type designation BG 450

Dimensions

1) Caloric value:

Natural gas 10 kWh/Nm3

LPG 26 kWh/Nm3m3

2) Dimension and capacity depen-

dingongasqualityandavailable

inlet pressure

Length of burner Flange

tube Measure A

Standard 256 226

Long design 356 326

Theabovedimensionsaremax.measurements.Dependingonthecomponents

used, the measurements may vary.

172 215 50 08-01

TECHNICAL DATA

DIMENSIONS OF FLANGE

172 215 19 08-01

SKELETON DIAGRAMS

1. Ball valve

2. Filter

3. Governor

4. Pressure gauge with shut-off

cock

5 a. Gas pressure switch, mini

5 b. Gas pressure switch, maxi

6 a. When modulating operation is

required this valve is equipped

with controls for variable

opening.

6 b. 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) Requiredover1200kWaccording

to EN 676.

172 415 09 08-01

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

123

6b 6a

10 8

MOUNTING OF THE BURNER

172 205 20 08-01

Fit the burner to the boiler by means

of 4 bolts M12. For ange and bolt

dimensions see technical data.

If for some reason you want to sepa-

rate the burner from the gas ange

with burner head and valve package

you can do so.

Do like this:

- Remove the cover of the fan hou-

sing.

- Loosen the nut D of the gas

assembly package.

- Loosen the electric cables to the

valve package.

- Loosen the screws B on both

sides.

- Loosen the stop bolt C on the pull

rods.

- Loosen the ignition cable and the

ionisation cable from the gas ass-

embly.

- Pull out the burner on the pull rods

and put it in a suitable place.

When the burner head and the gas

ange have been tted to the boiler it

is easy to lift up the burner to where

it belongs.

Inspection of gas assembly

If the gas assembly needs to be

inspected the pull rods are very

useful.

Do like this:

- Remove the cover of the fan hous-

ing.

- Loosen the nut D of the gas

assembly package.

- Loosen ignition cable and ionisation

cable of gas assembly.

- Loosen the screw A on both sides.

- Pull out the burner on the pull rods.

- Loosen the screws B on the gas

ange.

- Withdraw the gas assembly.

Ensure that the O-ring between the

gas assembly and the gas ange will

be in the correct position when the

gas assembly is tted again.

Adjustment of the position of the

shrouded disc in the blast tube

Sometimes it is necessary to adjust

the position of the shrouded disc in

theblasttube.This can be done with

the screw E (can be adjusted when

theburner isin operation).If youturn

the screw to the left the shrouded

discwillmoveforward(+),totheright

it will move backward.

SERVICE POSITION

NOTE!

For maintenance of the brake plate,

nozzles, electrodes etc, when using

a long design of the burner tube, you

havetoremovethenozzleassembly

fromtheconnectingpipeandmove

the assembly backwards in the fan

housing (from the boiler).

1N ~50/60 Hz230 V

172 425 61 08-01

ELECTRIC EQUIPMENT

Gas burner control: LMG22/LME22

Wiring diagram

1(5)

If there is no Plug-in

contact (X4,X16) on

the boiler, connect to

the contact enclosed.

172 425 61 08-01

ELECTRIC EQUIPMENT

Gas burner control: LGB22/LMG22/LME22

2(5)

List of components

A1 Gas burner control

A2 Power control

B1 Ionization electrode

F1 Operating fuse

H1 Operating lamp

H3 Alarm signal 230 V

K1 Contactor

M1 Burner motor

M2 Damper Motor, L&S SQN75.624.A21B

P1 Time meter, total operating time

S1 Operating switch

S3 Control thermostat

S4 Temperature limiter

S5 Micro switch for hinged door

S7 Main switch

S8 Air pressure switch

S9 Gas pressure switch

S11 Change-over switch, Aut.-Man.

S12 Change-over switch, Increase-Decrease

S15 Control thermostat, 3-pole (only for 2-stage sliding)

T1 Ignition transformer

X1 Connection terminal board

X2 Earth terminal

X3 Plug-in contact, burner

X4 Plug-in contact, boiler

X15 Plug-in contact, power controller, burner

X16 Plug-in contact, power controller

Y1 Gas solenoid valve 1

Y2 Gas solenoid valve 2

Mains connection in accordance with local regulations.

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 sufcient 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 ame.

5. The safety time expires.

The ignition spark goes out. The safety time expires. If there is no ame or if for some

reason the ame 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 capacity 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.

A1 = LMG

R/W

L N

br bl rt sw

sw rtQ1 = AGQ 2...

QRA

11112 2

172 425 61 08-01

During the time the cause

of the fault is diagnosed,

the control outputs are

deactivated.

–The burner remains shut

down

–Exception: fault status

signal «AL» at terminal 10

The burner is switched on

only after a reset is made.

–Press lockout reset but-

ton for 0.5...3 seconds

ELECTRIC EQUIPMENT

Control diagnosis under fault conditions and lockout indication

Gas burner control: LMG ...

Diagnosis of cause of fault After lockout, the red fault LED is steady on. For reading the cause of fault, refer to

the blink code given in the following table:

Connecting signal amplier

Error code table

Blink code Possible cause

2 x

••

• No establishment of ame at the end of «TSA»

– Fault or soiled detector electrode

– Fault or soiled fuel valves

– Poor adjustment of burner

3 x

•••

• Air pressure monitor does not close

– «LP» faulty

– «LP» incorrectly adjusted

– Fan motor does not run

4 x

••••

• Air pressure monitor does not open or extraneous light on

burner startup

– «LP» faulty

– «LP» incorrectly adjusted

5 x

•••••

• Extraneous light during pre-purging

– Or internal device fault

7 x

•••••••

• Loss of ame during operation

– Poor adjustment of burner

– Faulty or soiled fuel valves

– Short-circuit between detector electrode and ground

8...17 x

••••••••

.................

••••••••••

•••••••

• Free

18 x

••••••••••

••••••••

• Air pressure monitor opens during pre-purging or operation

– «LP» correctly adjusted

– Four times loss of ame during operation (LMG25)

19 x

••••••••••

•••••••••

• Faulty output contact

– Wiring error

– External power supply on output terminal

20 x

••••••••••

• Internal device fault

3(5)

Red LED on LED on (waiting time≥10 s)

Fault

Press lockout reset button

for > 3 s Blink code Off Blink code

Approx.

3 s

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