background image

GENERAL RULES

The installation of an oil burner should
be carried out in accordance with local
regulations. The installer of the burner
must therefore be aware of all
regulations relating to oil and combu-
stion.
Only oil suitable for the burner should
be used and then in combination with
a suitable oil filter before the oil pump
of the burner.
If the burner is replacing an existing
burner make sure that the oil filter is
replaced or cleaned. The installation
must only be undertaken by experien-
ced personnel.

INSTALLATION INSTRUCTIONS

General installation instructions ac-
company the burner and should be
left in a prominent place adjacent to
the burner.

ADJUSTMENT OF BURNER

The burner is from the factory pre-set
to an average value that must then be
adjusted to the boiler in question.
All burner adjustments must be made in
accordance with boiler manufacturers
instructions.These must include the
checking of flue gas temperatures,
average water temperature and CO

2

 or

O

2

 concentration.

To adjust the combustion device, start
by increasing the air volume somewhat.
When the burner starts it is  burning
with excess air and smoke number 0.
Reduce the air volume until soot occurs
and increase again to reach a
combustion free of soot.
By this procedure an optimum adjust-
ment 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 ex-
cess air and often also with smaller
nozzles than older models. This
increases the efficiency but also the
risk of condensation in the chimney.
The risk increases if the area of the
chimney flue is too large. The tempera-
ture of the flue gases should exceed
60°C measured 0,5 metres from the
chimney top.
Measures to raise the temperature:
Insulate the chimney in cold attics
Install a chimney liner
Install a draught regulator (dilutes the
flue gases during operation and dries
them up during standstill)

MAINTENANCE

The boiler/burner should be exami-
ned regularly for any signs of malfunc-
tion or oil leakage.

GENERAL INSTRUCTIONS

Increase the oil quantity
Raise the flue gas temperature by
removing turbulators, if any, in the
boiler.

INSTRUCTIONS FOR USE

The end user should be instructed
about the operation and safety features
of the burner.
He should also be made aware of the
importance of the area around the
boiler/burner being kept free of com-
bustible material.

PUMP ADJUSTMENT

See separate description.

ADJUSTMENT OF BURNER

To obtain a correct adjustment a flue
gas analysis and a temperature
measurement must be carried out.
Otherwise there is a risk that a bad
adjustment may cause a formation of
soot, bad efficiency or condensate in
the chimney.

171 305 67  97-01

AIR ADJUSTMENT 0-32

Summary of Contents for ST 40

Page 1: ...Installation Maintenance Manual ST 40 Oil Burner 11 12 Tel 44 0 1905 794331 Fax 44 0 1905 794017 Email info nu way co uk Web www nu way co uk ...

Page 2: ...tion transformer 4 Ignition 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 ...

Page 3: ......

Page 4: ...TECHNICAL DATA DIMENSIONS 171 215 76 99 01 Flange C Flange D 12 125 150 10 3 10 125 FlangeA 10 3 25 130 150 ø89 7 ø90 4 Flange B ø89 5 12 ø90 5 136 150 ...

Page 5: ...t 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 ex cess air and often also with smaller nozzles than older models This increases the efficiency but also the risk of condensation in the chimney The risk increases if the area of the chimneyflueistoolarge Thetempera ture of the flue gases should exc...

Page 6: ...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 94 01 SERVICE OF BURNER HEAD AND NOZZLE ASSEMBLY ...

Page 7: ......

Page 8: ...lculated values where the pipe dimensions and oil velocity havebeenmatchedsothatturbulences will not occur Such turbulences will resultinincreasedpressurelossesand in acoustic noise in the pipe system In addition to drawn copper piping a pipe system usually comprises 4 elbows a non returnvalve acut offvalveandan external oil filter Thesumoftheseindividualresistances is so insignificant that they c...

Page 9: ...n This can be remedied by Reducingthepumppressure Reducing the oil quantity supplied by using a smaller nozzle Using a pump with a larger capacity R S E NC A G H V P1 P1 D C Thediaphragmandthespringkeep the pump pressure constant at set value If the pump is overloaded i e if you try to get out more oil than the gear setcansupplyunderexistingcircum stances the oil pressure falls below the set value...

Page 10: ...1 79 7 97 94 81 2 00 6 65 79 68 7 06 84 72 7 45 88 76 7 81 93 80 8 18 97 83 8 49 101 86 8 81 104 90 9 12 108 93 2 25 7 49 89 76 7 94 94 81 8 38 99 85 8 78 104 89 9 18 109 94 9 55 113 97 9 91 117 101 10 26 122 105 2 50 8 32 99 85 8 82 105 90 9 31 110 95 9 76 116 99 10 19 121 104 10 61 126 108 11 01 130 112 11 39 135 116 2 75 9 15 108 93 9 71 115 99 10 24 121 104 10 73 127 109 11 21 133 114 11 67 13...

Page 11: ...s not reset Appliance overheat device has operated Control relay or photocell defective Adjust thermostat Check by replacement Motor runs Burner runs to lockout No oil being delivered Excessive flue draught is preventing flame establishment No spark Check that tank oil lines fire valve pump and nozzle are all in good order Rectify condition Excessive draught Recommission burner Burner pulsates on ...

Page 12: ...NOTES ...

Page 13: ...NOTES ...

Page 14: ...Enertech Limited P O Box 1 Vines Lane Droitwich Worcestershire WR9 8NA Tel 44 0 1905 794331 Fax 44 0 1905 794017 Email info nu way co uk Web www nu way co uk ...

Reviews: