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FAULT LOCATION

Burner fails to start

Delayed ignition, burners starts violently

Burner fails to start after normal operation

Situation

Motor runs

Burner pre-purges

Flame occurs

Burner locks out

Motor runs

Burner pre-purges

No lame occurs

Burner locks out

Possible causes

Flame instability

Incorrect head settings

Low oil pressure

Excess air

Photocell not seeing light

Photocell failed

Control faulty

False light

No spark

No oil

Remedies

Check nozzle to burner head dimension 

and electrode position

Check oil pressure

Adjust air damper

Check that photocell is clean and 

unobstructed

Conirm with new photocell

Conirm with new control. (NB. it is 

advisable to change the photocell if also 

changing control)

Check that photocell is not seeing 

ambient light

Check that H.T. leads are sound and are 

not arcing other than at electrode gap

Check oil supply to burner - check that 

pump is not airlocked

Check operation of 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 defective

No oil being delivered

Excessive lue draught is preventing 

 

lame establishment

No spark

Check or replace fuse if necessary. 

Check reason for failure

Adjust thermostat

Reset overheat device. Find reason for 

its operation and rectify

Check by replacement

Check that tank, oil lines, ire valve, pump 

and nozzle are all in good order

Rectify condition

Check ignition transformer. Check 

electrode gap and porcelain

Burner pulsates on start-up 

only with hot lue

Burner pulsates on start-up

Burner starts violently

Excessive draught

Nozzle partly blocked

Oil pressure too low

Flue blocked or damaged

Fan slipping on shaft

Pump coupling loose or worn

Delayed ignition

Adjust the burner

Replace nozzle

Check and adjust

Check and rectify

Check and retighten

Check and replace

Check the electrode adjustment, see 

diagram

Check electrodes for damage

Check H.T. leads for damage and 

disconnection

171 915 01  08-01

Summary of Contents for STERLING 40 ST108PL

Page 1: ...Providing sustainable energy solutions worldwide 178 016 13 Installation and maintenance instruction STERLING 40 ST108PL ...

Page 2: ......

Page 3: ...cables 5 Nozzle assembly 6 Nozzle 7 Brake plate 8 Blast tube 9 Ignition electrodes 10 Connecting pipe 11 Air damper 12 Solenoid valve 13 Pump 14 Drive coupling 15 Indication air damper 16 Fan wheel 17 Adjustment air damper 18 Photoresistor 19 Motor 171 205 32 07 01 Components ...

Page 4: ...with the pump pressure Output range and nozzles recommended The net caloriic value of 11 86 kWh kg for light oil has been used Burner tube Length of burner tube Incl lange A Measure B Incl lange B Measure B Incl lange C Measure B Incl lange D Measure B PL 80 45 58 66 65 2 5 3 1 7 0 8 0 0 5 0 5 B 188 275 145 ø89 56 239 162 Burner tube Oil capacity Outputy Recommended Nozzle Recommended Pump pressur...

Page 5: ...TECHNICAL DATA 171 215 76 07 01 Flange A 10 3 25 130 150 ø89 7 Flange C 10 125 ø90 4 Flange D 125 150 10 3 ø90 5 12 Flange B ø89 5 12 136 150 Dimensions ...

Page 6: ... soot occurs and increase again to reach a combustion free of soot By this procedure an optimum adjustment is obtained If larger nozzles are used the preadjustment of the air volume must be increased Condensation in chimney A modern burner works with less excess air and often also with smaller nozzles than older models This increasestheeficiencybutalsotherisk ofcondensationinthechimney Therisk inc...

Page 7: ...MAINTENANCE OF OIL BURNER Warning Before doing any service switch off power at the main switch and cut off the oil supply 171 305 68 07 01 Service of burner head and nozzle assembly ...

Page 8: ...IC EQUIPMENT 1 2 LMO14 113 LMO24 255 LOA24 171 Pre ignition time 15 s 25 s 13 s Pre purge time 16 s 26 s 13 s Post ignition time 3 s 5 s 15 s Safety lock out time 10 s 5 s 10 s Reset time after lockout 1 s 1 s 50 s Reaction time on lame failure 1 s 1 s 1 s Ambient temperature 5 60 C 20 60 C 20 60 C Min current with lame established 45 µA 45 µA 65 µA Max photo current at start 5 5 µA 5 5 µA 5 µA En...

Page 9: ...as provide indication if something ab normal is happening in accordance with the following table Preheater in operation Solid yellow Ignition switched on Flashing yellow Normal operation Solid green Operation poor lame signal Flashing green Undervoltage Flashing yellow red Fault alarm Solid red False light Flashing red green Communication mode Fluttering red Fault codes LMO14 24 When the red light...

Page 10: ...ndards On commissioning with an empty tube system the oil pump should not be run without oil for more than 5 min a condition is that the pump is being lubricated during operation The tables state the total suction line length in metres at a nozzle capacity of 2 5 kg h Max permissible pressure at the suction and pressure side is 2 0 bar Purging On 1 pipe systems it is necessary to purge the pump On...

Page 11: ...TYPE DANFOSS BFP11 Replacement of cartridge ilter mounting dismounting return plug In case of one pipe operation the horse shoe shaped washer will be mounted under the screw head and in case of two pipe operation the horse shoe shaped washer will be removed The horse shoe shaped washer will be introduced in all BFP 11 pumps To minimize the leak between cover plateandpumphousingwhenrunning one pipe...

Page 12: ... 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 89 176 152 15 62 185 159 4 50 14 97 177 153 15 88 188 162 16 75 198 171 17 57 208 179 5 00 16 64 197 170 17 65 209 180 18 62 221 190 19 52 231 199 5 50 18 30 217 187 19 42 230 198 20 48 243 209 21 47...

Page 13: ...11 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 97 201 173 17 62 209 180 18 23 216 186 4 50 18 35 217 187 19 10 226 195 19 82 235 202 20 51 243 209 5 00 20 39 242 208 21 22 251 216 22 03 261 225 22 79 270 232 5 50 22 43 266 229 23 34 277 238 24 23 ...

Page 14: ...of 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 defective No oil being delivered Excessive lue draught is preventing lame establishment No spark Check or replace fuse if necessary Check reason for failure Adjust thermostat Reset overheat device ...

Page 15: ...ont conformes aux normes et aux documents normatifs suivants et satisfont aux critères applicables des directives CE suivantes Dokument EN 267 EN 60335 EU direktiv EU Directives EU Direktiven CE suivantes 2004 108 EC Elektromagnetisk kompatibilitet Electromagnetic compatibility EC Richtlinie Compatibilité électromagnétique 2006 95 EC Lågspänningsdirektivet Low voltage directive Niederspannungs Ric...

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Page 17: ... 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 the burner starts but does not ignite Make an attempt to start the burner Never make close repeated start attempts Don t restart the burner until the boiler is free from oil gases If the burner stil...

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Page 20: ...Enertech AB P O Box 309 SE 341 26 Ljungby www bentone se www bentone com ...

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