IBC SFC 99 Quick Start Manual page 2

Combustion Test Target Ranges
Figure: 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 i n these instructions.
After converting the appliance to natural gas, a combustion (CO
using properly functioning and calibrated combustion analyzing equipment and the results compared to the values
in Table 1.
Natural Gas
Max. CO value
2
Min. CO value
2
Table 1 - CO values at High and Low Fire
2
2 |
High Fire with front cover open
10.1%
9.1%
) reading must be taken by a qualified technician
2
Low Fire with front cover
Actual Value at High Fire
open
9.1%