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  1. Thread: No Fuses

    by rjk_cmh
    Replies
    104
    Views
    4,671

    I can reference a specific situation that applies...

    I can reference a specific situation that applies to this discussion where fused disconnects are required. I service a building with (4) 5-ton and (2) 3-ton units all located next to each other. All...
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    283

    You can't refill a disposable cylinder and you...

    You can't refill a disposable cylinder and you should not try to. If you go through a lot of gas, get a larger rental tank from Airgas and make sure that it is a party blend, not straight helium. The...
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    642

    I've thought about this sort of setup for a...

    I've thought about this sort of setup for a while. The fact is, the benefits are too small at such a small scale. As pecsmg said, supermarkets do stuff like this all the time, but it's on a much...
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    292

    Interesting, I guess there must be a built-in...

    Interesting, I guess there must be a built-in regulator. Wonder what input range it can handle?
  5. Replies
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    292

    Some cheap adapters will show a much higher...

    Some cheap adapters will show a much higher voltage when they are not under load. Is 18v the measured voltage or is it what's on the label? Since the H-10 uses a lead-acid battery, it should be...
  6. Replies
    38
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    3,713

    According to Joey, the BluVac is impervious to...

    According to Joey, the BluVac is impervious to refrigerant and can also take test pressure without damage. Just avoid getting oil on the sensor, because then you will have to clean it.
  7. Replies
    703
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    98,525

    https://www.youtube.com/watch?v=ClQcUyhoxTg

    https://www.youtube.com/watch?v=ClQcUyhoxTg
  8. Replies
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    2,837

    Someone was really trying to get rid of some...

    Someone was really trying to get rid of some buckets. He could have done them in an alternating pattern and got away with about 4, but instead he decided to stack them together. Wow.
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    2,500

    Damn carrier/bryant doors always misaligned,...

    Damn carrier/bryant doors always misaligned, flimsy cabinets and latches that "sorta kinda" hold the door on. Couldn't they just stamp a few patterns into the sheet metal to make it a little stiffer?
  10. Replies
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    1,002

    It seems like there's 2 different products being...

    It seems like there's 2 different products being discussed in this thread. Product 1 is the single-outlet torch where the flame comes out the end of the hook-shaped tip, and product 2 is the cap'n...
  11. Replies
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    1,954

    Hilti has long been the high-end unobtanium that...

    Hilti has long been the high-end unobtanium that only leased to commercial users with a maintenance agreement, but I've seen recently that they have released a line that's being sold at retail. Might...
  12. Replies
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    1,385

    Interesting to hear this, because that's why I...

    Interesting to hear this, because that's why I posted - I'm not a kitchen tech so I don't know what the state-of-the-art is. It just seems absurd to me since I only work on sealed combustion...
  13. Replies
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    1,053

    Hey, I had asked previously about using a heat...

    Hey, I had asked previously about using a heat pump for outdoor makeup air reheat instead of gas or electric. No one seemed to understand what I was trying to do, but this chart would help me develop...
  14. Replies
    19
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    1,385

    I stopped back in to get some pictures. There's...

    I stopped back in to get some pictures. There's no certifications at all, except the label that says NSF (lol). There's no stickers or nameplates that have the model number or gas specifications....
  15. Replies
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    1,385

    I found it with the pilot blown out and a slight...

    I found it with the pilot blown out and a slight smell of gas, so yeah I shut it off immediately and will be recommending a replacement, or at least a retrofit with a proper valve. These kitchen...
  16. Replies
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    1,385

    Couldn't see a label anywhere. Sent from my...

    Couldn't see a label anywhere.

    Sent from my Pixel XL using Tapatalk
  17. Replies
    19
    Views
    1,385

    New steam table has no safety?

    Is this really a thing in the industry or did someone get some Chinese junk? We have a new steam table, and it has no safety thermocouple on the standing pilot - just a separate metering screw from...
  18. Replies
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    4,980

    Interesting to know it uses a gasket seal, i was...

    Interesting to know it uses a gasket seal, i was wondering how they would connect since the whole thing is plastic. The 0.2 degrees per hour heat loss rating is pretty insane on those Marathons....
  19. Nothing yet, project still on hold, but as you...

    Nothing yet, project still on hold, but as you noted the pricing kind of makes it untenable. I've been reading up on some of John Siegenthaler's books and gaining knowledge of how the systems play...
  20. No issues other than same as iceman, stuff not...

    No issues other than same as iceman, stuff not always in stock. They seem to drop-ship a lot of stuff too.
  21. Thread: Nice access

    by rjk_cmh
    Replies
    26
    Views
    2,886

    IT is stupid in this case, because badge access...

    IT is stupid in this case, because badge access means that they can track you easily, but key access means they have no idea where you are.
  22. Replies
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    2,352

    With more and more tech companies offering remote...

    With more and more tech companies offering remote work opportunities and the huge wage disparity between the skilled trades and the tech sector, there is not much incentive for young guys to get...
  23. Replies
    15
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    1,665

    Was the old unit condensing or not? If not, the...

    Was the old unit condensing or not? If not, the change from 40k standard efficiency BTU to 60k high efficiency BTU is probably gonna be way more than he needs, right? That would be 25k additional...
  24. Replies
    53
    Views
    3,491

    So I just got this update, and I'm very annoyed...

    So I just got this update, and I'm very annoyed that I have to register an account just to use the tools I paid for. I want an option to revert back to the old version that does not require a login.
  25. Thread: Milwaukee 18v

    by rjk_cmh
    Replies
    22
    Views
    1,432

    Ok so here's the breakdown. M18 and M12 are 2...

    Ok so here's the breakdown. M18 and M12 are 2 different battery platforms, 18 volts and 12 volts respectively. Many Milwaukee tools are available in both voltages, and the M12 are just smaller and...
  26. Replies
    47
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    2,220

    Just get a #14 turbotorch, put in your ear plugs,...

    Just get a #14 turbotorch, put in your ear plugs, and let 'er rip! :whistle:
  27. Replies
    4
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    638

    Nice, only 28 bucks each online.

    Nice, only 28 bucks each online.
  28. Replies
    33
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    17,196

    GPS claims their sensors detect both ions:...

    GPS claims their sensors detect both ions: https://gpshvac.com/sensors
  29. Replies
    4
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    638

    Can't seem to find any. Wonder if you could get...

    Can't seem to find any. Wonder if you could get the brass backs and glass faces and retrofit them onto some plastic gauges?
  30. Replies
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    2,043

    Yes but if there are 6 of the same unit, it's...

    Yes but if there are 6 of the same unit, it's probably safe to keep one of the manuals.
  31. Here's Adam Booth's review of his favorite...

    Here's Adam Booth's review of his favorite indicator holder, the Noga: https://m.youtube.com/watch?v=0Wg6wTlhSnI

    As a side note, Abom79 is an excellent machinist on YouTube and regularly discusses...
  32. Replies
    13
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    1,486

    https://hvac-talk.com/vbb/showthread.php?211762-Ra...

    https://hvac-talk.com/vbb/showthread.php?211762-Radiant-heat-Water-temps
  33. Replies
    13
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    1,486

    I'm not an expert, but 120 degrees seems too hot...

    I'm not an expert, but 120 degrees seems too hot for floor heat to me, unless you have inch thick carpet or something.
  34. Replies
    13
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    1,486

    A 4-pipe (dual coil) air handler will allow you...

    A 4-pipe (dual coil) air handler will allow you to perform dehumidification as required, otherwise you can do it with a single coil 2-pipe AH as long as you take care of the switching between heat...
  35. Replies
    22
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    1,760

    Knipex are pretty much the gold standard, and...

    Knipex are pretty much the gold standard, and they're priced like it too...

    I also have got a Milwaukee 11-in-1 and wire stripper - very pleased with them so far. May get some more of their...
  36. Replies
    16
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    1,498

    Our local paper is saying that a control room in...

    Our local paper is saying that a control room in Columbus is being investigated because they should have been able to see the overpressure, and perhaps had some control over it as well?
    ...
  37. Replies
    703
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    98,525

    https://www.youtube.com/watch?v=azdwsXLmrHE

    https://www.youtube.com/watch?v=azdwsXLmrHE
  38. Replies
    703
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    98,525

    Not sure why, but a couple of radio-related songs...

    Not sure why, but a couple of radio-related songs popped into my head, but I can only post one at a time:


    https://www.youtube.com/watch?v=Iwuy4hHO3YQ
  39. Replies
    16
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    1,498

    Most municipal gas networks run in the 40-80 PSI...

    Most municipal gas networks run in the 40-80 PSI range and are regulated at the meter. Some small district systems run at less than 1 PSI, but it's more rare because it requires larger pipes to...
  40. Replies
    16
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    1,498

    I wonder if they converted a 14" line to 60 PSI...

    I wonder if they converted a 14" line to 60 PSI without checking the regulators on the existing meters?
  41. Replies
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    2,247

    That's hackable:...

    That's hackable: https://www.instructables.com/id/How-to-Hack-Upgrade-a-Rigol-DS1054Z-Digital-Oscill/
  42. Replies
    22
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    1,974

    They even have a nice video on the rebuild...

    They even have a nice video on the rebuild procedure: https://www.youtube.com/watch?v=d2w5fxAHMYU
  43. Replies
    22
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    1,974

    The last time I bought core tools, they came with...

    The last time I bought core tools, they came with the rebuild kit included, so I made sure to save that somewhere safe for later.
  44. Replies
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    369

    As a technician, you don't need to be personally...

    As a technician, you don't need to be personally licensed other than having your EPA card. But the contractor needs 5 years experience as mentioned above. Some counties or towns may require tech...
  45. Replies
    8
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    1,372

    What's the correct way to traverse round duct?...

    What's the correct way to traverse round duct? Does my anemometer need to reach all the way to the other side?
  46. Start by finding out whether the Jace even...

    Start by finding out whether the Jace even supports that sort of 2FA, and then have your thread moved to the controls forum where those guys will see it.
  47. Thread: Wire bugs

    by rjk_cmh
    Replies
    18
    Views
    3,479

    Because the LB is what I had on hand.

    Because the LB is what I had on hand.
  48. Replies
    21
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    1,713

    The cheapest Fluke that can do megohms is...

    The cheapest Fluke that can do megohms is probably going to be the 175. It can also do millivolts, but not microamps. The 87V can do microvolts, millivolts, microamps, milliamps, and up to 50...
  49. Thread: Wire bugs

    by rjk_cmh
    Replies
    18
    Views
    3,479

    Pretty sure it's been that way since at least the...

    Pretty sure it's been that way since at least the 90s. But as an example, a 3/4 LB is around 4.5 cu. in., which means that you couldn't even splice 3 14 AWG conductors inside of one unless you got a...
  50. Thread: Wire bugs

    by rjk_cmh
    Replies
    18
    Views
    3,479

    Correction: You are allowed to make a connection,...

    Correction: You are allowed to make a connection, given the following provisos: 1)That the condulet is marked with its internal volume, and 2) That you abide by the requisite fill requirements given...
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