Combustion Test Target Ranges
Figure 1 Gas valve and fan
The Low Fire (zero-offset) valve adjustment cap on the gas valve has been factory set. Do not adjust this screw in the field
unless indicated in these instructions.
After converting the unit to natural gas, a combustion (CO
2
) reading must be taken by a qualified technician using properly
functioning and calibrated combustion analyzing equipment and the results compared to the values in Table 1.
Natural Gas
High Fire with front cover open
Low Fire with front cover open
Max. CO
2
value
10.1%
Actual Value at High Fire
Min. CO
2
value
9.1%
9.1%
Table 1
- CO
2
values at High and Low Fire
2
|
