9
A
tmOsphEriC
G
As
f
irED
b
UrnErs
•
Oxygen
...................................................................................... 7 to 9% O2
•
Stack Temperature
.................................................................. 325 to 500°F
•
Draft
(Water Column Inches) ................................................... -.02 to -.04wc”
•
Carbon Monoxide
(parts per million) ...................................... <100ppm
G
As
f
irED
p
OwEr
b
UrnErs
•
Oxygen
...................................................................................... 3 to 6% O2
•
Stack Temperature
.................................................................. 275 to 500°F
•
Stack Draft
(Water Column Inches) ......................................... -.02 to -.04wc”
•
Overfire Draft
(Water Column Inches) .................................... -.02wc”
•
Carbon Monoxide
(parts per million) ...................................... <100ppm
O
iL
f
irED
b
UrnErs
(#2 O
iL
f
UEL
)
•
Oxygen
...................................................................................... 4 to 7% O2
•
Stack Temperature
.................................................................. 325 to 600°F
•
Stack Draft
(Water Column Inches) ......................................... -.04 to -.06wc”
•
Overfire Draft
(Water Column Inches) .................................... -.02wc”
•
Carbon Monoxide
(parts per million) ...................................... <100ppm
•
Smoke
........................................................................................ 0 (or manufacturer’s recommendation)
p
OsitivE
O
vErfirE
G
As
& O
iL
•
Oxygen
...................................................................................... 3 to 9% O2
•
Stack Draft
(Water Column Inches) ......................................... -.02 to -.04wc”
•
Overfire Draft
(Water Column Inches) .................................... +0.4 to +0.6wc”
•
Carbon Monoxide
(parts per million) ...................................... <100ppm
NOTE: Follow manufacture guidelines for the specific equipment being serviced.
t
ypiCAL
E
XCEss
A
ir
L
EvEL
O2% (measured)
Excess Air %
Natural gas
3%
16.7%
Light Oil
5%
31%
Coal
8%
62%
p
rOviDE
y
OUr
C
UstOmEr
f
ACts
, n
Ot
O
piniOns
.
W
HAT
R
ESULTS
A
RE
G
ENERALLY
A
CCEPTABLE
Combustion
Heat Exchanger
Differential
Temperature
Manometer
Draft/Pressure
Room CO
Auxiliary
(EagleX Only)