User Guide

OFF-CENTER FIRES

• May be caused by off center

location of the nozzle in the burner

tube. The nozzle tube or bracket may be bent or improperly

located

• If the heavy flame always appears on the same side in a

particular burner, this is due to a peculiarity of the air pattern

in that burner and it can’t be corrected by changing nozzles.

• Anozzle contaminated by sludge or other foreign matter will

usually produce an off center fire.

• A hollow air pattern will sometimes pull a solid cone spray

over to one side, causing an off center fire. This can be

corrected by changing to a hollow cone nozzle.

LONG FIRES

A narrow spray angle always

produces a long fire. High viscosity

oil also can be a cause since the

spray angle tends to collapse. As

mentioned before, this can

sometimes be solved by increasing

pump pressure and going to the

next size smaller nozzle. Solid cone

nozzles also produce a longer fire.