ratio of 0.009ppm on a new boiler

[metaldust9]

yep all the 0.0000 can easily get mixed up

trigger value on my sheet for combi,s is 0.008 altho mi,s might say diffrent so 0.0009 would be well in

 

[julesverne]

those bloody noughts. I still keep looking at my sheet just to be on the safe side as i always keep questioning myself whether it's 1, 2, or 3 bloody zero's.

 

[Reg Man]

yep all the 0.0000 can easily get mixed up

trigger value on my sheet for combi,s is 0.008 altho mi,s might say diffrent so 0.0009 would be well in

Yer you are right for many boilers, but Mi's over rule guidance in CPA1. Most band A boilers (zero governed) require 0.002 ratio.

 

[derrybongo]

just as an easy trigger to remember the cut off point on the analyser ratio tests

JAMES BOND 007

When i see the ratio near this i consult the MIs

works for me but im a bit of a saddo

 

[metaldust9]

i was told 0.004 or below ok 0.004 to 0.008 needs servicing, above 0.008 I,D switch off and find out why

 

[kirkgas]

ok...just been back to check it once more,turns out i did miss a zero so it now reads 0.0009 phoned ideal and they said its fine as the action level is 0.004....i think we get confused about the number of zero's we need to be reading when doing a fga! i now feel like a right forrest gump!

i think you are being very unfair to Forrest Gump😛

 

[mfgs]

i was told 0.004 or below ok 0.004 to 0.008 needs servicing, above 0.008 I,D switch off and find out why

Thats how BG work. Most newer boiler state a ratio in the MI's. Worcester are 0.0020 for example. Also if its above 0.0080 on a boiler then its only AR not ID.

 

[GQuigley67]

0.004 is usually for SE boilers, HE are to be below 0.002

 

[gbgas001]

Is the calibration of the Flue Gas Analyser OK?