Verify Flue Integrity
Is O
≥ 20.6% and
2
CO
< 0.2% ?
2
TURN APPLIANCE OFF !
Set Boiler to Maximum Rate
Perform Flue Integrity
Combustion Check
Is O
≥ 20.6% and
2
CO
< 0.2% ?
2
Verify Integrity of Seals
Is CO < 350ppm
and CO/CO
ratio
2
< 0.004 ?
TURN APPLIANCE OFF !
Note:
Check CO & Combustion
Ratio at Maximum Rate
Is CO < 350ppm
and CO/CO
ratio
2
< 0.004 ?
Set Boiler to Minimum Rate
Check CO & Combustion
Ratio at Minimum Rate
Is CO < 350ppm
and CO/CO
ratio
2
< 0.004 ?
BOILER OPERATING
SATISFACTORILY. NO
FURTHER ACTION
REQUIRED