Phoenix FURY - Operation and Service Manual
18
Heavy Oil Fuel Piping System
WARNING!
Be very careful with Heavy oil:
•
Heavy oil has to be heated to lower its viscosity for proper atomization.
•
Do not heat the Heavy oil higher than its vapor point.
•
Contact with the hot oil, or piping, can cause a severe burns.
Illustration 7 - Heavy Oil Piping Schematic
1.
For recommended pipe size see Table 9.
2.
Your burner should fire on all commercially available heavy oils.
3.
Proper fuel viscosity is required for satisfactory atomization and combustion of heavy oil.
NOTE: Every shipment of oil must be individually tested.
a. The viscosity of the oil must be 80 SSU (
Saybolt Seconds, Universal) or lower.
b. Check the fuel specifications to check the vapor point of the fuel.
c. For better combustion the viscosity can be lower than the 80 SSU maximum, which means a
higher oil temperature.
d. Never heat the oil above 220º F or 10º F below the vapor point of the fuel, whichever is lower.
e. The oil temperature switch must be adjusted to the minimum temperature for good atomization for
the particular oil being used.
f.
Make sure the fuel is not forming vapor (steam) pockets in the oil lines.
g. These vapor pockets can cause the pump to cavitate, causing damage to it.
h. Vapor pockets can also interrupt fuel flow causing the burner to falter.
i.
They can even cause pipes to burst causing damage and possible injury.
j.
Set the oil heater temperature regulator, and the indicating low oil temperature switch (located on
the burner’s oil manifold) to the temperature determined in item 3a above.
k. This will prevent the burner from operating when the oil is too thick to be atomized and burn well,
and will prevent damage to your plant.
