
Eclipse AirHeat v2.00, Installation Guide No. 135, 7/99
23
PROBLEM POSSIBLE CAUSE SOLUTION
• Air pressure drop/velocity is
too low.
Main flame is uneven along the
length of the burner.
Increase air pressure drop.
• Poor air distribution in duct.
Check profiling and duct
obstructions.
• Air wings are dirty, holes are
clogged.
Inspect and clean air wings if
necessary.
Main flame is yellow and long
at high fire.
• Gas pressure too high at
burner inlet.
Check gas pressure against
design. Adjust main gas
pressure regulator.
• Air pressure drop/velocity too
low.
Open air damper on
combustion air blower.
• Air wings are dirty, holes are
clogged.
Inspect and clean air wings if
necessary.
CO emission is too high.
• Burner is outside range
specified in Data 135.
Adjust burner settings.
• Process air velocity exceeds
limits given in Data 135.
Bring velocity within limits;
adjust process air blower.
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