Michigan Air handler input temp vs. air output temp.

Discussion in 'Maintenance and Troubleshooting' started by draginol, Aug 21, 2019.

  1. draginol

    draginol New Member

    My air handler’s input temperature is 51 degrees and the output temp is around 59. But the air coming out of the vent is 68.

    My filters are clean. Any ideas on what might cause this?

  2. geoxne

    geoxne Active Member Forum Leader

    I was a bit confused by your posted numbers at first without knowing what kind of system you have. I have researched some of your past postings and I'm making the following assumptions.
    -Chilled water cooling airhandler with geo w2w HP
    51f=Chilled water coil entering water temp
    59f=Chilled water coil leaving water temp
    68f=Supply air temp at room outlet

    Can you confirm this is correct?

    If yes we need to know (at least for now)
    -Room temp
    -Entering air temp at airhandler
    -Leaving ait temp at airhandler
    -Is your airhandler and/or duct work in an unconditioned space like a hot attic?
    -Are there any other possible heat sources (hot water coil, dehumidifier etc) in the system?

    Answers may lead to a diagnosis or more questions.

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