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  1. Replies
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    932

    Vibration in furnace

    I have a carrier furnace that is transferring vibration/shaking into the floor joists. Downstairs the hanging kitchen light is shaking. System is 8 years old. Just started doing this recently. I...
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    718

    Thanks for the info Ed. I'll check those out.

    Thanks for the info Ed. I'll check those out.
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    718

    Load Calculation Software

    Anyone have a recommendations for load calcs software? I've tried HVAC-Calc. Also took a quick look at O'Brien's Quickloads Pro. Anyone know of an online tool that you pay per use? Need for...
  4. Thread: Local Codes

    by dgul
    Replies
    3
    Views
    474

    I'm in NJ and have been told my a local inspector...

    I'm in NJ and have been told my a local inspector that an electrical permit is required to change out a AC condensing unit. Never been told this before. Anyone know where I can find out if this is...
  5. Replies
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    1,893

    Thanks for the replies. Very helpful. The item...

    Thanks for the replies. Very helpful. The item I wanted a wiring diragram for is the Mastertrol minizone Model
    MM-2. I believe that's the master controler with the 4 relays in it. The stats and...
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    1,893

    I'm trying to help a friend rewire a zone damper...

    I'm trying to help a friend rewire a zone damper system. He currently has two tstats with a switch in the basement hall to select either heating/cooling or fan. Very hokey system. The upstairs...
  7. Thread: HVAC Licensing

    by dgul
    Replies
    2
    Views
    560

    Does anyone know if there is any HVAC contractor...

    Does anyone know if there is any HVAC contractor licensing in force either here in new jersey or anywhere else in the country? I heard something is coming but recently was told by Little Egg Harbor...
  8. Thread: superheat values

    by dgul
    Replies
    11
    Views
    1,195

    superheat values

    Wow! Thanks to everyone for the replies. I will check out the links and do some studying. I'm pretty impressed with this site. I've searched a lot of sites but have not yet found anything decent...
  9. Thread: superheat values

    by dgul
    Replies
    11
    Views
    1,195

    Where can I find the superheat values for...

    Where can I find the superheat values for different types of equipment (walk-in coolers,
    freezers, bay maries, deli cases, home central a/c).
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