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  1. We noticed the Unico was blowing cold air. The...

    We noticed the Unico was blowing cold air. The boiler was off, so I was on the phone with Unico and we walked through the manual. While on the phone, I flipped the boiler power switch off, then back...
  2. Unico Smart Control Board Wiring to Aquastat - hotwater coil. Installer wired wrong?

    Howdy,

    Spoke to Unico tech support about wiring to boiler. They can't figure out how things are working. Wiring of control board does not look like the wiring in the manual (bulletin...
  3. Thread: Unico problem

    by ivanho
    Replies
    9
    Views
    1,430

    We live in Minneapolis, MN

    So you do this for a living? Thanks for all your input. I've learned a lot in the last week. I spoke with Unico about the circulation pump. It's a grundfos Ups 15-58 Frc. The max temp. for the hot...
  4. Thread: Unico problem

    by ivanho
    Replies
    9
    Views
    1,430

    3500 square feet - how many CFM?

    I've been reading up on things, so I can ask more specific questions. The Unico blower is pushing 875 CFM on average. It's heating a 3500 sq. ft. house that would be classified as leaky.

    Is 875...
  5. Thread: Unico problem

    by ivanho
    Replies
    9
    Views
    1,430

    The company sent out the guy who installed the...

    The company sent out the guy who installed the boiler. He checked the boiler temp, and some other things. He didn't perform the actual install of the Unico System; that was done by some other guys in...
  6. Thread: Unico problem

    by ivanho
    Replies
    9
    Views
    1,430

    Unico problem

    We're in the same boat. Leaky, 3500 sq. ft 1888 victorian in the Upper Midwest. We had Unico installed for both heating and cooling. The air conditioning worked fine this Summer. The heating module...
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