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  1. Easy, in the manual it mentions reversing...

    Easy, in the manual it mentions reversing rotation by connecting speeds 1, 3, and 5 simultaniously for at least 5 minutes. That will either reverse it or at least erase its memory and cause it to...
  2. Two apps

    Okay, thanks! Smart PRO/R is the older app, right? I downloaded it now and it looks not as good, but I don't have any sensors handy.
  3. Yeah, the new app is the best. Is there an older...

    Yeah, the new app is the best. Is there an older one? I didn't know.
  4. Thread: IoT gauges

    by ahanktcd
    Replies
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    6,223

    IoT gauges

    I made my own always-on A/C monitoring system which reports the PT's to the cloud where I can go view graphs from all time.

    Here is the setup from bottom up
    DS18S20 temp sensor & refrigeration...
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    When you guys mention turbo torches, do you...

    When you guys mention turbo torches, do you specifically mean the MAP/PRO or the acetylene/air?

    https://www.amazon.com/TurboTorch-0386-0851-STK-99-MAP-Pro-Lighting/dp/B00INRZJ7G
    ...
  6. Good point. Should I keep the sporlan, I may...

    Good point. Should I keep the sporlan, I may grow to like it, and get a testo as well? You like both, right? When do you use each?
  7. Review of Parker Sporlan SMART Service Tool Kit

    1) The provided NPT to 1/4 flare adapters do not depress the schrader valve on the two units that I tried this on. I had my own and it worked.
    2) The NPT to 1/4 flare adapters (the provided ones...
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    Just to update, I bought some line and fittings...

    Just to update, I bought some line and fittings and spent a hour making connection and sawing them up with a metal sawsall. It was very educational, I recommend it.
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    Sizing up in a world of cheaper is better.

    Sizing up in a world of cheaper is better.
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    I wish all motors in the future come with vids,...

    I wish all motors in the future come with vids, you would just dial the speed to 80%. Motors are annoyingly not constant speed, load bugs them down somewhat. Can you swap for a lower speed motor or...
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    Too complicated since most of the wood burnt heat...

    Too complicated since most of the wood burnt heat goes out the chimney. Visit a similar restaurant and look at their A/C. Lol, j/k. Refer to initial remark.
  12. My perspective as an electrical engineer, PhD is...

    My perspective as an electrical engineer, PhD is related to how I make decisions in my work. I use reference charts sometimes but am not bound by them in cases when I decide to run the math. What...
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    If the system is bigger than a water fountain,...

    If the system is bigger than a water fountain, that amount of air, non condensible, should not matter. That said, if course run the vacuum a bit more and you can do that with the shrader valve in or...
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    Right, sounded like a cap except that it tested...

    Right, sounded like a cap except that it tested good and caps do not usually come back to life. I know probably not but does it have brushes? Rotor position would show intermittent. When you turn...
  15. Thread: Manual J CFM

    by ahanktcd
    Replies
    4
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    1,158

    Manual J CFM

    Load calculation and sensible and latent heat all make sense to me.

    How does the manual J calculate the CFM? Is there a simple hand calculation that can "double check" the manual J but more...
  16. Thread: Line sizing.

    by ahanktcd
    Replies
    4
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    455

    For starters, lines for a couple of tons are not...

    For starters, lines for a couple of tons are not terribly expensive, I would put in the correct lines. The liquid line needs to be correct, but the vapor line can be a bit over sized like 7/8 vs...
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    Purging with nitrogen is definitely important to...

    Purging with nitrogen is definitely important to me. Do the standard test and braze some pipes, cross section them long-ways with, for instance, a hack saw, and take a look at the inner lining of...
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