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  1. #1
    Join Date
    Mar 2010
    North Louisiana
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    Please evaluate static pressure measurements on my system

    Furance is upflow 100 btu with variable speed blower. Dryer manometer readings
    Static pressure delta across electronic filter with metal pre filter (both cleaned) =.055"
    SP across furnance = .25" fan on set to heat
    SP across evaperator =. 08"
    Amp = 1

  2. #2
    Join Date
    Aug 2013
    Visalia California 93291
    Post Likes
    With your probe @ the intake of the furnace and the discharge of the furnace you are @ .25? Set the fan on high speed and the coil should be wet so if you can run the AC- that will give you a better idea of your duct system

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