BAIRAN STW120 User manual

1
DESCRIPTION
Fig. 1
1.Blast tube 2.Asbestos gasket 3.Flange 4.Body gasket 5. Brake plate
6.Oil n ozzle 7.Heater 8.Rubber block 9. Transformer 10. Controller
base 11.Motor 2.Photocell 13. Controller 14.Compressor air 15.Reset button
16.Cover 17. Air regulator 1 8.Body screw 19.Oil temperature 20. Seal gas ket
21. Heating tube 22. Limit s of controller 23. Level switch 24. Level height adjust or
25. Oil tank 26.Level switch base 27. Float bal l 28.Overow connector
29. Oil tank cover 30. Oil inlet connector 31. Filter 32. Oil pipe 33. Air inlet

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BURNER ACCESSORIES
No. Description QTY No. Description QTY
1 Transfer oil pump 1PC 6 Install screw 4
2 Air controller 1PC 7 Inner six angle spanner 1
3 Install flange 1PC 8 Nozzle Spanner 1
4 Asbestos gasket 1PC 9 Oil filter 1
5 Outlet-inlet pipe 2PC 10 Oil line connector 4
TECHNICAL DATA
Item no. Cap .
(KW )
Motor Nozzle
Qty
Combustion
(KG )
Transfer
Motor
Power
Supply
STW120 -P 10-50 130W 1 1-4 120W 230V/50Hz
STW120 12-50 90W 1 1-4 120W 230V/50Hz
STW133 -1 40-80 130W 1 3-7 180W 230V/50Hz
STW133 -1P 40-80 180W 1 3-7 180W 230V/50Hz
STW133 -2P 70-115 220W 2 6-10 180W 230V/50Hz
STW133 -2 70-115 130W 2 6-10 180W 230V/50Hz
STW146 -2 70-139 150W 2 6-12 180W 230V/50Hz
STW146 -2P 70-139 250W 2 6-12 180W 230V/50Hz
STW146 -3 115 -200 180W 3 10-18 180W 230V/50Hz

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OVERALL DIMENSIONS
Fig. 2
A B C D E F G
STW120 338 242 172 78 85 204 89
STW133 370 268 196 95 105 196 95
STW146 380 268 196 95 115 196 114
FLANGE DIMENSIONS
A B C
STW120 120 160 11
STW133 145 170 11
STW146 145 170 11
Fig.3

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AIR PUMP STRUCTURE DIAGRAM
WARNING: this air pump is no oil pump, is strictly prohibited to add
lubricating oil.
Fig.4 STW120 AIR PUMP
34. Air inlet 35. Pressure regulator 36.Pressure port 37.Air outlet
39.Coupling
Fig.5 STW133 AIR PUMP
1. Pressure regulator 2. Solenoid 3. Pressure port
4. Air outlet 5. Air inlet

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IGNITION ADJUSTION
Fig.6
NOZZLE DATA (COMBUSTION ADJUSTMENT)

6
AIR CONTROLLER (WITHOUT AIR PUMP)
1. Fixed base
2. Air regulating handle
3. Pressure gauge
4. Burner connector (6mm)
5. Solenoid valve
6. Air filter
7. Drainage outlet
8. Air inlet connector (8mm)
Fig.7
TRANSFER OIL PUMP
Fig.8
40. Oil flow rate adjusting handle 41. Oil outlet (to oil tank)
42. Fixed base 43. Oil inlet connector 44. Oil pump

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BURNER INSTALLATION
Warning: the storage oil tank cannot be higher than the burner.
Fig.9
1． Accessories oil pipe connect with Fig.1 - 30 and Fig.8 - 41.
2． Access ories oilpipe connect with Fig.8 - 43 and connect a ccessories
oil lter to Storage oil tank.
3. Fig.1 - 14 connect with Fig.7 - 4.
4. Fig.7 - 8 connect with air source .
THE HEIGHT OF LIQUID LEVEL ADJUSTMENT
1． Adjust screw Fig.10 - 1 to a djust the
level upper limit
2． Release Fig. 10- 2,M oveup Ormove down
can adjust the upper or lower limit of the
height for oating ball.
Fig. 10

8
OIL FLOW CONTROL
In order to reduce the frequent start of the transfer oil pump and instant
cooling the oil temperature in heang oil tank, adjust handle no. 40 in
Fig. 8. And control inlet oil rate to get the suitable oil flow rate. (With
just over burning oil is better）
TEMPERATURE- SETTING
Rotate the temperature control switch in Fig.1 to set the preheat
temperature. In general, engine oil is 80-90 degree, vegetable oil is
110-120 degree.
AIR PRESSURE- SETTING
Air pressure factory seng is in 0.35bar-0.4bar, too high air pressure will
cause ignion dicult or cause oil atomizaon not good.
WARNING: the overow pipe in preheating tank Fig.1 -28 must
connect back oil to Storage oil tank
WORK PRINCIPLE
Turn on power supply, and then preheat oil, about 5-10 minutes
(dierent kinds oil at dierent preheat oil mes), aer arrived at the set
temperature, turn on the control box. Turn on Fig.1-15 to start burner.
1. Test photocell (dark).
2. Pre-purging and ignion (Normal working me is 13s).
3. Open air valve, injecon oil.

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4. Test photocell (bright).
5. Aer the normal combuson, oil level in heang tank will rise or
drop by oang ball to control transfer oil pump.
FAULT LOCATION
1. Turn on power supply, transfer oil pump cannot work.
a. Check motor and oil pump, whether the oil viscosity is too high
to cause the transfer oil pump cannot start.
b. Check the oil pump whether blocked by oil impuris.
c. Check whether because blocked to make the oil pump
connector slide.
2. Aer started the burner, stop work because have not make
pre-purge me just ignion directly, fault lamp turn on.
Check the air solenoid valve cannot close whether because blocked
by sundries.
3. Aer started the burner, stop work aer pre-purged and fault lamp
turn on.
Check the photocell, the control box have not detected photocell
was dark.
4. Aer ignion burning, ame out suddenly, and fault lamp turn on.
a. Photocell damaged.
b. Oil atomizaon is not good.
c. Air ow is too large.
d. Preheang temperature is not upped
5. Transfer oil pump hard to stop.
Check the float ball switch whether have fault.

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WIRING DIAGRAM