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pressuretrol adjustment

The specs for the pa404a with additive differential are here:


The diff available is 1 to 5 psi.


  • Irv
    Irv Member Posts: 95
    pressuretrol adjustments

    Good morning
    I have a honeywell PA 404a pressuretrol. It was set at .5 cut in with 1.5 diff.
    I was trying to adjust the white differential wheel in the box however it stops at 1. is this the limit for this ?
    Seems that I can only adust down to 1.5. cut in plus diff equal cut out.
    One pipe system.
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