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ELECTRIC EQUIPMENT

Oil burner control: LMO24.255

List of components

A1  Oil burner control

B1 Photoresistor

F1 Fuse

H1  Lamp, low capacity

H3  Lamp, lock-out signal 230 V

K1  Thermal overload protection

M1  Burner motor

P1  Time meter, low capacity    

 (optional)

P2  Time meter, high capacity    

 (optional)

S1  Operating switch

S2  Operating switch, high/low   

 capacity

S3  Control thermostat

S4  Temperature limiter

S5  Micro switch for hinged door

S6  Control thermostat, high/low

 capacity

S7  Main switch

T1  Ignition transformer

X1  Connection terminal board

X2  Earth terminal

X3  Plug-in contact "Euro", burner

X4  Plug-in contact "Euro", boiler

X5  Plug-in contact "Euro", 

 

high/low burner

X6  Plug-in contact "Euro", 

 

high/low boiler

Y1  Solenoid valve 1

Y2  Solenoid valve 2

Y2H Solenoid valve, Hydraulic piston

 

(Only 2-stage burners with

 

1 nozzle.)

If S6 is missing connection between T6 and T8.

Mains connection and fuse in accordance with local regulations.

Function

1. Switch on operating switch and twin thermostat

 

The burner motor starts, an ignition spark is formed, the prepurge goes

 

on till the prepurge period expires and the solenoid valve 1 opens (2).

2. Solenoid valve 1 opens

 

Oil mist is formed and ignited. The photocell indicates a flame.

3. The safety time expires

a.  If no flame is established before this time limit the control cuts out.

b.  If for some reasons the flame disappears after this time limit, the burner

 

will make an attempt to re-start.

4. Full load thermostat ON

 

The burner is in operating position and can now change between high

 

and low capacity.

4-5. Operating position

 

If the burner operation is interrupted by means of the main switch or the

 

thermostat, a new start takes place when the conditions in accordance

 

with point 1 are fulfilled.

The oil burner control cuts out

 

A red lamp in the control is lit. Press the reset button and the burner

 re-starts.

Technical data

Pre-ignition time:   

25 s

Pre-purge time: 

 

26 s

Post-ignition time:   

5 s

Safety lock-out time: 

< 5 s

Reset time after lockout: 

 

< 1 s

Reaction time on flame failure: 

 

< 1 s

Ambient temperature: 

from - 20 to +60°C

Min. current with flame established: 

45µ A

Max. photo current at start: 

 

5,5µ A

Enclosure: 

 

IP 40

Control of photo current

Current through photo unit is measured with a d.c. ammeter (a moving coil 

instrument connected in series with the photo unit).

171 435 26  15-01

2(3)

Max loading K1 

Connection A1,A2 /  95, 96 / 97, 98 

Max 0,2A/15W

Summary of Contents for B 45 A2.2H

Page 1: ...Providing sustainable energy solutions worldwide 178 014 56 2014 11 11 Installation and maintenance instruction B 45 A2 2H...

Page 2: ......

Page 3: ...e 2 15 Solenoid valves 16 Nozzle assembly adjustment 17 Connecting pipe pump adjustment device 18 Adjustment device Nozzle assembly adjustment 19 Fuse 20 Indicating lamp Stage 2 21 Switch I II 22 Indi...

Page 4: ...and the spray pattern change with the pump pressure Output range and nozzles recommended The net calorific value of 11 86 kWh kg for light oil has been used Length of burner tube Flange Measure B B45A...

Page 5: ...TECHNICAL DATA 171 225 34 09 01 Dimensions of flange 14 134 200 224 260...

Page 6: ...optimum adjust ment is obtained If larger nozzles are used the preadjustment of both the air volume and the nozzle assembly must be increased A whistling sound may be heard which can be eliminated or...

Page 7: ...stage Set the operating switch S2 on low capacity I Loosen the screw A and turn the damper to the position wan ted Tighten the screw A again Second stage Set the operating switch S2 on high capacity...

Page 8: ...and cut off the oil supply Service of burner head alt A Service of burner head alt B Note For maintenance of the brake plate nozzles electrodes etc when using a long design of the burner tube you have...

Page 9: ...l burner control LMO24 255 Wiring diagram ELECTRIC EQUIPMENT 1 3 1N 50 60 Hz 230 V If the boiler is not equipped with wired contacts connect the enclosed contacts to terminals X4 and X6 in accordance...

Page 10: ...es and the solenoid valve 1 opens 2 2 Solenoid valve 1 opens Oil mist is formed and ignited The photocell indicates a flame 3 The safety time expires a If no flame is established before this time limi...

Page 11: ...blem by pressing and holding the reset button for 3 seconds The number of flashes below is repeated with a pause in between 2 flashes No flame signal when safety time expires 4 flashes False light dur...

Page 12: ...length in metres at a nozzle capacity of 9 5 Gph Max permissible pres sure at the suction and pressure side is 2 0 bar Components 1 Nozzle outlet G 1 8 Stage 2 2 Pressure gauge port G 1 8 3 Nozzle ou...

Page 13: ...ic it is assured by a bleed flat on the piston In one pipe operation a high pressure connection must be loosened until the air is evacuated from the system Cut Off The solenoid valves of the A2L pump...

Page 14: ...93 9 71 115 99 10 24 121 104 10 73 127 109 3 00 9 98 118 102 10 59 126 108 11 16 132 114 11 71 139 119 3 50 11 65 138 119 12 35 146 126 13 03 154 133 13 66 162 139 4 00 13 31 158 136 14 12 167 144 14...

Page 15: ...1 21 133 114 11 67 138 119 12 11 144 123 12 53 148 128 3 00 12 23 145 125 12 73 151 130 13 21 157 135 13 67 162 139 3 50 14 27 169 145 14 85 176 151 15 42 183 157 15 95 189 163 4 00 16 31 193 166 16 9...

Page 16: ...23 34 277 238 6 00 22 34 265 228 23 42 278 239 24 47 290 250 24 46 302 260 6 50 24 20 287 247 25 37 301 259 26 51 314 270 27 58 327 281 7 00 26 06 309 266 27 33 324 279 28 55 339 291 29 70 352 303 7 5...

Page 17: ...70 317 272 6 00 26 43 313 270 27 49 326 280 28 27 335 288 29 13 345 297 6 50 28 63 340 292 29 63 351 302 30 62 363 312 31 55 374 322 7 00 30 84 366 314 31 91 378 325 32 98 391 336 33 98 403 374 7 50 3...

Page 18: ...9 256 220 4 50 22 47 266 229 23 09 274 235 23 69 281 242 24 28 288 248 5 00 24 97 296 255 25 65 304 262 26 33 312 268 26 98 320 275 5 50 27 47 326 280 28 22 335 288 28 96 343 295 29 68 352 303 6 00 29...

Page 19: ...3 56 279 240 4 50 24 85 295 253 25 41 301 259 25 96 308 265 26 49 314 270 5 00 27 61 327 282 28 24 335 288 28 84 342 294 29 44 349 300 5 50 30 38 360 310 31 06 368 317 31 73 376 324 32 38 384 330 6 00...

Page 20: ...magnetic valve Burner fails to start Lamp not lit Motor runs Burner runs to lockout Fuse has blown Appliance thermostat has not reset Appliance overheat device has operated Control relay or photocell...

Page 21: ...nt conformes aux normes et aux documents normatifs suivants et satisfont aux crit res applicables des directives CE suivantes Dokument EN 267 EN 60335 EU direktiv EU Directives EU Direktiven CE suivan...

Page 22: ...the burner will not start Press the reset button on the relay Check that the thermostats are correctly adjusted Don t forget the room thermostat check that any fusesare intact and main switch is on If...

Page 23: ......

Page 24: ...Enertech AB P O Box 309 SE 341 26 Ljungby www bentone se www bentone com...

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