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But I was under the impression that the gas valves were factory set and that only heat team could adjust it. Also it was gas rated on instalation and was bang on. Any input? Also he changed the PCB?!?
Set up to get the boiler working only, Flue lengths and types will affect CO`s.
FGA must always be carried out on installation also check the oxygen levels on the intake sampling point for flue effictiveness.