100
Rev 2.1
If combustion readings are not between recommended values, then adjustments should be made to the gas valve until all
readings are within these recommended values.
Carbon Monoxide __________ ppm (must be kept below 100 ppm)
Carbon Dioxide __________ % (should be kept between 7-9%)
Excess Air __________ % (should be kept between 30-45%)
NOx __________ ppm (should be kept under 15 ppm)
Combustion Chamber Pressure __________ in w.c. (must be kept under 0.5 in w.c.)
After maintenance is complete refer to pre start checklist. Check gas pressure and perform combustion check adjusting
gas valve if necessary. Before using the following schedule make copies for future use.
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