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171 755 02  06-01

05. MAINTENANCE

Suction plate

 

 In the case of higher power, as well as with boilers featuring overpressure 
in the combustion chamber, it is possible to achieve higher fan pressure 
by altering the position of the suction plate, see illustration. The plate is  
located beneath the outer half of the fan housing, see illustration, Clea-
ning the fan wheel.

 

 Position 1 is normally used for nozzles up to 0.60 gph and position 4 for 
larger nozzles. Position 2 and 3 are intermediate positions. Position 5 
and higher does not give more pressure and they are not used.

 

 Check that the plate is placed in the correct position. Otherwise the air-
cannot be adjusted to the correct value.

Cleaning the fan wheel

 

 Unscrew the four fastening screws. Remove the half of the fan housing. 
Check the position of the suction plate (position 1 up to and including 
0.60 gph nozzle). Remove the suction plate. Inspect and clean the fan if 

necessary. Rei tting the suction plate is made easier by tilting the burner 

forward.

Trimming

 

 If the size of the nozzle is changed, it is suitable to i rst set the nozzle  

assembly and air according to the recommendations in section Basic set-
tings. For the individual boiler installation, adjustments can then always 
be made to optimise economy, operational reliability and environmental 
effects. 

 

 The most important instruments for the task are one instrument for l ue-

gas analysis and a soot meter. 

 

The principle of the adjustment is:

 

-   reduce the air, either with the air regulation or the nozzle assembly, 

until a soot coefi cient 0.5–1 is achieved.

 

-   increase the air to give a safety margin of 0,5-1% CO

2

 before soot is 

created. To throttle more with the shrouded disc (smaller reading on 

the nozzle assembly scale), gives a short, more bluish l ame and often 

better combustion, but if one goes too far there will be starting problems. 
Throttling less with the shrouded disc gives a longer and more yellowish 

l ame and can give a smoother start.

 

 The pressure in front of the shrouded disc can be utilised as an aid in 
the adjusment. Recommended pressure, see under Basic settings. Re-

member to rei t  the rubber gasket on the pressure outlet after making 

the adjustments.

Automatic air damper

 

 The automatic air damper is provided with a small spring at the right shaft 
journal. Check that the air damper moves easily.

 

backwards and rotate it ca. 90° clockwise.

Pump fi lter

 

When changing pump i lter, see chapter 06.

5.6  Suction plate

5.7  Cleaning the fan wheel

5.8  Trimming

5.9  Automatic air damper

Summary of Contents for Bentone B1FUV Classic

Page 1: ...Providing sustainable energy solutions worldwide 178 066 31 3 2017 10 09 Installation and maintenance instruction B1FUV CLASSIC...

Page 2: ...______________8 5 1 Suspension of burner ____________________________________ 8 5 2 Removing the blast tube__________________________________ 8 5 3 Shrouded disc ______________________________________...

Page 3: ...stor 4 Test nipple fan pressure 5 Frame 6 Blast tube 7 Control box 8 Electric contact X1 X2 see wiring diagram 9 Ignition transformer 10 Oil pump 11 Motor 12 Air adjustment 13 Adjustment of nozzle ass...

Page 4: ...oil ire or personal injury is avoided Care should be taken by the installer to ensure that no electrical cables or fuel gas pipes are trapped or damaged during installation or service maintenance Cond...

Page 5: ...0 bar 11 bar 12 bar Gph kg h kW kg h kW kg h kW kg h kW kg h kW 0 40 1 15 13 6 1 22 14 4 1 28 15 2 1 35 16 0 1 41 16 7 0 45 1 35 16 0 1 43 17 0 1 51 17 9 1 58 18 8 1 65 19 6 0 50 1 57 18 6 1 67 19 8 1...

Page 6: ...ain power switch must be turned off before beginning the electrical installation If the boiler has a 7 pole contact device type Eurostecker it will most often it the burner direct Otherwise use the ac...

Page 7: ...25 30 35 40 45 0 45gph 0 50gph 0 55gph 0 60gph 0 65gph 0 75gph 0 85gph Pump pressure bar Burner capacity kW Nozzle assembly scale 0 2 4 6 8 10 12 14 15 20 25 30 35 40 45 Suction plate 4 Suction plate...

Page 8: ...s one turn 2 Turn to the right and withdraw the blast tube Shrouded disc The preheater plug and the electrodes shall be placed on either side of the oil tube The hole in the shrouded disc shall be pla...

Page 9: ...f the burner If the spark hits the metal the eficiency will be lower and will also cause radio disturbance There is also a risk that carbonisation will occur Since the electrode pack is of the factory...

Page 10: ...nd air according to the recommendations in section Basic set tings For the individual boiler installation adjustments can then always be made to optimise economy operational reliability and environmen...

Page 11: ...from the stud bolt Pull the electric package backwards and rotate it ca 90 clockwise When required the electric package can be suspended in the cables Pump lter When changing pump ilter see chapter 0...

Page 12: ...a one pipe system In two pipe systems the pump is automatically vented by the return pipe Changing cartridge lter Unscrew the ilter screw from the cover using a 4 mm Allen key and pull out the ilter...

Page 13: ...set on the control valve P1 and by the size of the oil nozzle in the nozzle line The control valve P1 operates as follows When the oil attains opening pressure the port to the return side opens The d...

Page 14: ...dividual resistances is negligible The tables do not include any lengths exceeding 100 m because experience shows that longer lengths are not needed The tables apply to standard fuel oil of normal com...

Page 15: ...in switch T1 Ignition transformer Y1 Solenoid valve X1 Plug in contact burner X2 Plug in contact boiler The colours of the preheater cable A Blue B Brown C Black Outer electrical connection Mains conn...

Page 16: ...t 3 4 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 fulilled The oi...

Page 17: ...caused the problem by pressing and holding the reset button for 3 seconds The number of lashes below is repeated with a pause in between 2 lashes No lame signal when safety time expires 4 lashes Fals...

Page 18: ...r 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 preventi...

Page 19: ...19 9 DECLARATION OF CONFORMITY...

Page 20: ...t 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...

Page 21: ...21...

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

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