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A combustion Analysis question
I have a Laars JVH160 Natural Gas (induced draft) Boiler with these readings.
CO 25 ppm
Seems off... If I adjust the manifold pressure down from 4" the CO2 % goes down.. (Recommended by factory is 4.0") seems like the CO2 is low and the O2 is high... Draft should be in the negative... Stack temp was 287degF... I clocked the meter and everything worked out well... How do I get the readings in where they should be... CO2 around 6.5 anyway and O2 at 7-9%.... I don't know why the draft is in the positive...
A bit confused...