Beckett 150 Manuel D’Utilisation

 

Instruction Manual – 

Model AFII Oil Burner

Prepare burner & site

• 

Use a wrench or vise to hold the nozzle adapter. DO NOT attempt to 
remove or replace nozzle without holding adapter. The nozzle alignment 
could be seriously damaged. Use a nozzle wrench that secures the 
adapter or use 

3

/

4

" and 

5

/

8

" open-end wrenches. 

•  Verify that the burner fuel unit is compatible with the oil supply system. For 

more details, refer to “Connect fuel lines” on page 8. 

• 

Do not squeeze the electrodes too tightly when handling the nozzle line 
assembly. This could change the electrode tip settings or damage the 
ceramic electrode insulators. 

If using a flange and gasket, slide them onto the air tube. Then attach the air 
tube to the burner chassis using the sheet metal screws provided. See Figures 
3 & 4 on pages 6 & 7 for details. 

• 

Carefully check and realign electrode tips after replacing nozzle, 
ensuring the electrode settings comply with Figure 2a or 2b. 

Check the electrode tip settings. Adjust if necessary to comply with the 
dimensions shown in Figure 2a or Figure 2b. To adjust, loosen the electrode 
clamp screw and slide/rotate electrodes as necessary. Securely tighten the 
clamp screw when finished. 

 

  Make certain the nozzle is selected for the fuel unit pressure 

used. For applications with fuel unit pressure above 100 psig, the nozzle rated 
capacity will be less than the appliance firing rate. Use only the specified spray 
pattern unless combustion test results indicate the need for a change. Failure 
to use the correct nozzle size and type can result in unacceptable combustion, 
possibly causing severe personal injury, death or substantial property 
damage. 

 

Figure 2a –  Electrode settings – HLX Air Tube Combinations 

 

1.  Remove the plastic plug protecting the nozzle adapter threads 

 

2. Place a ¾” open-end wrench on the nozzle adapter. Insert the nozzle into 

the adapter and finger tighten. Finish tightening with a ⅝”  open-end 
wrench. Use care to avoid bending the burner head support legs or 
electrodes. See CAUTION, below. 

   
  
 

3.  If you remove the head to replace the nozzle (type “HLX” heads), carefully 

reconnect the head to the nozzle adapter, making sure to butt the head 
support to the nozzle adapter shoulder (see Figure 3, page 6). 

 
 

If the nozzle is already installed, remove the nozzle line assembly to verify that 
the nozzle size and spray pattern are correct for the application (per appliance 
manufacturer’s information or Beckett OEM Specification Guide, part number 
6711). Verify that the electrode tip settings comply with Figure 2a or 2b. 

 
   

If the nozzle is not installed, obtain a nozzle of the manufacturer, capacity and 
spray angle specified in appliance manufacturer’s information or Beckett OEM 
Specification Guide, part number 6711. For conversions or upgrades, when 
information is not available for the application: 

Figure 2b –  Electrode settings – FBX Air Tube Combinations 
    
 

4.  Refer to table below to select the mid-range nozzle spray angle for the 

head type being used. 

5.  Fire the burner and make sure the combustion is acceptable and the 

flame is not impinging on chamber surfaces. 

6.  If a shorter flame is needed, select a wider spray angle. If a longer flame 

is needed, select a narrower spray angle. 

7.  Either hollow or solid spray patterns may be used. If combustion results 

are not satisfactory with the selected spray pattern, try the other pattern. 

 

45°, 60°, or 70° nozzle 

60°, 70°, or 80° nozzle 

1.  Turn off power to burner before proceeding. 
2.  Disconnect copper oil connector tube from nozzle line. 
3.  Loosen the screw that fastens the rear access door. 

 

4.  Remove splined nut. 

 

5.  Remove the nozzle line assembly from the burner, being careful not to 

damage the electrodes or insulators while handling.  Stop halfway to 
remove igniter/transformer wires. 

 

    Use care when removing and installing oil nozzles: 

 

                    

SK8811

SK8263

 

• 

Inspect the nozzle adapter before installing nozzle. If it is grooved or 
scratched on the sealing surface, replace the nozzle line assembly. 
Otherwise, oil could leak at the nozzle-adapter joint, causing serious 
combustion problems. 

6.  To replace the nozzle assembly, reverse the above steps.   

“HLX” head air tubes – Be sure stop screw is fastened securely.  Seat 
stop screw on back of choke ring to set the position of the head. 

• 

Protect the nozzle orifice and strainer when installing. If the orifice gets 
dirt in it or is scratched, the nozzle will not function properly. 

 

“FBX” head air tubes – Use T gauge to set the “Z” dimension to 1-1/8” +/-
1/32”. 

• 

Do not over-torque the nozzle when installing. This will cause deep 
grooves in the nozzle adapter, preventing a seal when a new nozzle is 
installed.