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    Maybe your not asking the right question. I...

    Maybe your not asking the right question. I don't think there's much money available in hacking HVAC systems. Sure, someone could do targeted attacks that hold mechanical systems hostage n exchange...
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    Bottom line is that newer digital gauges are more...

    Bottom line is that newer digital gauges are more accurate than even high quality analogs that have been out in the field for even a short time. TrueTechTools does a nice series of videos one of...
  3. Maybe you meant to link to the actual Wiki...

    Maybe you meant to link to the actual Wiki article rather than the forum/chat/talk area...
  4. - with 16 awg copper at 100 feet you'll see...

    - with 16 awg copper at 100 feet you'll see roughly a 10% drop in voltage
    - with 10 awg copper at 50 feet you'll see roughly a 1% drop in voltage
    Real world you'll probably see slightly higher drop...
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    Hardworking, Where are you finding reference to...

    Hardworking,
    Where are you finding reference to Mitsubishi calling for stranded? It's not that I don't believe you, it's only that what I'm aware of doesn't seem to match up; help me out, show me...
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    Unlike the older Mitsu's there's no thin...

    Unlike the older Mitsu's there's no thin thermostat/bell wire for signaling. Unless I'm missing something that yall are seeing there's nowhere in the documentation that calls for stranded over solid...
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    A couple of questions to see if the problem is...

    A couple of questions to see if the problem is network related or Insight/panel config issue...
    1. From the Insight workstation can you ping the other (functional) nodes BY NAME?
    2. Can you ping...
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    Nice work! Very cool side project. I see a...

    Nice work! Very cool side project. I see a board and what looks like an Ethernet port on the top of the Otterbox behind the tape - what platform is it? Any plans to use GPIO for other inputs and...
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    Depending on who you use for phone service there...

    Depending on who you use for phone service there might be a program you can enroll in that lets you block numbers. Verizon in the Mid-Atlantic has an online portal that you can use to add numbers...
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    I can't tell if you're joking or being serious......

    I can't tell if you're joking or being serious... If you or anyone else reading doesn't know, this is a scam! It started about 6 or 7 years ago and in the first iteration callers would claim that...
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    Doug1111, In your first post you mention 122...

    Doug1111,
    In your first post you mention 122 psig with temp @ 82*, was that 82* ambient or 82* measured with a probe on a system pipe? The numbers just doesn't add up for R-22.

    If it was just...
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    Both the Tado (https://www.tado.com/de-en/) and...

    Both the Tado and the Pebble MiniSplit Thermostat will do roughly what you're asking for. I haven't installed either and am not recommending simply trying to answer your question... The Tado is...
  13. Thread: huffing r22

    by snadam
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    Having never huffed refrigerant, or anything for...

    Having never huffed refrigerant, or anything for that matter, I can't speak from experience but will venture some guesses. I suspect there's a complex psychoactive component at work not just...
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    Tried that, instead of cancelling it just records...

    Tried that, instead of cancelling it just records that I both like and dislike the post at the same time. Now everyone knows I'm bipolar.
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    It's over here - ...

    It's over here -
    http://hvac-talk.com/vbb/showthread.php?104595-Complaints-on-driving&p=1103996#post1103996

    After asking how to remove the 'dislike' I noticed that the user hasn't logged on...
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    Accidental Dislike removal

    Changing the batteries in my mouse I accidentally clicked the Dislike button on a post that definitely didn't deserve it. Yes, I know this makes me look like an @ss and a buffoon. How can I remove...
  17. Something worth pointing out is that the LSU...

    Something worth pointing out is that the LSU research I mentioned earlier (linked here) didn't actually discover the phenomenon instead they found an alloy with suitable thermal properties, ie. its...
  18. No, not really, it's more similar to the vapor...

    No, not really, it's more similar to the vapor compression cooling we're all familiar with than it is to solid state Peltier (it's French so I assume it's pronounced something like 'pelt ee ay').
    ...
  19. Alternatives cooling technologies on the horizon?

    I searched the forum but didn't find any threads on the topic and wonder, has anyone heard anything about major manufacturers other than GE working on magnetic cooling R&D? Of the technologies being...
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    Thanks Shophound, good advice. The firm that...

    Thanks Shophound, good advice.
    The firm that we're unhappy with provides full service mechanical engineering and on paper should have what it takes to get the job done. The same goes for the firm...
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    Help me evaluate contractor competence

    Please forgive me for this long winded post.

    Who I am:
    A friend of mine owns a fairly large car dealership and is having trouble with HVAC. He's not a technical guy and has asked me to give him...
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