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have a vav,enviro-tec w/2 inch tstat,i have set min and max b4,with good
results,this one has had several hands in b4 me.is there a starting point,where i can turn the adjustments,min max,aux,one...

it is the crecomzro2oao1 economizer
i have 4 of these at one building, they all seem to be doing the same thing ,which is open when they shouldn't be.
they also have an iaq sensor.

need help with new carrier economizers with an iaq sensor
have 4 new units all set up the same way
econos keep opening on 90 degree days with 80+% humidity
driving my customer nuts.sensor display...

a couple more things to check
return temp to cold;not enough load
set point to low