a
tmoSpheric
G
aS
f
ired
B
urNerS
•
Oxygen
....................................................................................................6.8 to 7.9% 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
.................................................................................................... 8.5to 10.2% 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
....................................................................................................10 to 12% 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
.................................................................................................... 7 to 13% 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
co a
ir
f
ree
– co u
Ndiluted
Carbon monoxide is easily diluted with additional excess air, and disperses quickly in the presence of additional air. This
characteristic has led to some references of a value that can compare like for like readings.
Newer BPI standards reference “CO Undiluted” values in addition to “CO As Measured”. The SmartBellPlus measures
CO and calculates O2. From this information it is easy to determine CO Undiluted using the multiplication factor from
the following table.
Example: CO Measured – 50 ppm, O2 Calculated – 7.2%, Multiplication factor from table – 1.5
CO Air Free = CO measured x Factor = 50 ppm x 1.5 = 75 ppm
NOTE: Follow manufacturers guidelines for the specific equipment being serviced
WHAT RESULTS ARE GENERALLY ACCEPTABLE
6
O2%
Mult.
O2%
Mult.
O2%
Mult.
O2%
Mult.
0.0 ~ 0.9
1.0
12.4 ~ 12.7
2.5
15.7
4.0
17.3
5.9
1.0 ~ 2.7
1.1
12.8 ~ 13.0
2.6
15.8
4.1
17.4
6.0
2.8 ~ 4.1
1.2
13.1 ~ 13.3
2.7
15.9
4.2
17.5
6.1
4.2 ~ 5.4
1.3
13.4 ~ 13.5
2.8
16.0
4.3
17.6
6.3
5.5 ~ 6.4
1.4
13.6 ~ 13.8
2.9
16.1 ~ 16.2
4.4
17.7
6.5
6.5 ~ 7.4
1.5
13.9 ~ 14.0
3.0
16.3
4.5
17.8
6.7
7.5 ~ 8.2
1.6
14.1 ~ 14.2
3.1
16.4
4.6
17.9
7.9
8.3 ~ 8.9
1.7
14.3 ~ 14.4
3.2
16.5
4.8
18.0
7.2
9.0 ~ 9.6
1.8
14.5 ~ 14.6
3.3
16.6
4.9
18.1
7.5
9.7 ~ 10.1
1.9
14.7 ~ 14.8
3.4
16.7
5.0
18.2
7.7
10.2 ~ 10.7
2.0
14.9 ~ 15.0
3.5
16.8
5.1
18.3
8.0
10.8 ~ 11.1
2.1
15.1
3.6
16.9
5.2
18.4
8.4
11.2 ~ 11.6
2.2
15.2 ~ 15.3
3.7
17.0
5.4
18.5
8.7
11.7 ~ 12.0
2.3
15.4
3.8
17.1
5.5
18.6
9.1
12.1 ~ 12.3
2.4
15.5 ~ 15.6
3.9
17.2
5.6
18.7
9.5
