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  1. Replies
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    I like that better than what I made up before -...

    I like that better than what I made up before - how about Amps, Circuit Protection?
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    Dunno. I have done commissioning, and have never...

    Dunno.
    I have done commissioning, and have never run across that. A WAG is A.C. Power?
    which would be in watts, volt-amps, or horsepower. any of those missing from the nameplate?

    nothing here
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    PSU Central Pennsylvania

    Systems Design Specialist


    Campus/Location:
    University Park Campus


    Work Unit:
    Office of Physical Plant
  4. Think of it more, when the air starts moving....

    Think of it more, when the air starts moving. Velocity pressure can be measured anywhere in the duct run. though some locations sample more accurately than others.
  5. cost / flexibilty You are right. the Velocity...

    cost / flexibilty

    You are right. the Velocity in that larger duct will be less. Friction losses would be less? I don't know how significant.
  6. Alright, I do not know the formulas. Look at it...

    Alright, I do not know the formulas. Look at it this way:

    If you have a fixed fan blowing into a blocked-off piece of ductwork, the fan power will be down (Amp-draw / electrical current in...
  7. Eh? I don't know about Newton, but I have...

    Eh?

    I don't know about Newton, but I have restricted an outside air damper, in order to increase velocity, and therefore turbulence, in the mixing box of a large AHU with stratification issues...
  8. This will be too quick... Build your own at...

    This will be too quick...

    Build your own at home. Find something to automate. It sounds expensive, but it doesn't have to be. There are take-outs around that are not obsolete.

    licensing is...
  9. Thread: ??

    by Mr_Greenjeans
    Replies
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    1,078

    Pixburgh? You can't ride the Incline. ...

    Pixburgh?
    You can't ride the Incline.

    Seriously, is MS/TP BACnet?, American Automatrix PUP? Arcnet? Something to do with a social networking website? ur Blackberry?

    We aren't seeing it.
  10. Replies
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    We did get an answer to our email, and all of the...

    We did get an answer to our email, and all of the above is exactly correct. The State table was not used. He used a couple of 'Command Hierarchy's here and there. So, as long as we don't try to view...
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    Bad doo doo How did you find them?

    Bad doo doo
    How did you find them?
  12. licensing? The license was tied to the machine....

    licensing? The license was tied to the machine.
    It seems to be complaining about a class, though.
    do you have the right version installed?
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    What size UPS are we talking about here - self...

    What size UPS are we talking about here - self contained, or the kind with a battery bank?
  14. sorry, if you can't strip it/fixit with teeth and...

    sorry, if you can't strip it/fixit with teeth and fingernails, you are no good technician.

    been there, done that, anyway - also gotten laughed at for soldering stranded wire onto an EOL resistor...
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    Mesta Electronics...

    Mesta Electronics is a link.
  16. Replies
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    I am going to shoot from the hip, and disagree...

    I am going to shoot from the hip, and disagree about your typical UPS (esp. APC,) - they do not do a battery test, even though they are able to communicate a variety of status info. Look specifically...
  17. What is the norm for Big Box stores - Lowes, Home...

    What is the norm for Big Box stores - Lowes, Home Depot, Walmart, Sam's Club, Target, Wegmans, Kohls, Staples, JC Pennys, Sears, etc. Do they have their own crew, or hire local contractors?
    ...
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    JCI seems to do some proprietary stuff on the...

    JCI seems to do some proprietary stuff on the BACnet wire (between it's own). Alerton may choke on that. We have Alerton on a separate UDP port (not 47808 / BAC0). That way Alerton doesn't have to...
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    I think you might have the right thing, it is...

    I think you might have the right thing, it is actually an RJ-25, which is the same size as an RJ-11, but uses all six positions/conductors.
    RJ-45 is eight positions.

    show me the diagram, and I...
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    But non-networked.

    But non-networked.
  21. Replies
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    SCS-Unico

    For others reference, it is a room temp sensor with integral controller.

    PDF attached.
    361151
  22. I doubt this will be of much help, but if I...

    I doubt this will be of much help, but if I recall, this should be pretty straightforward as a report.
    you can do a select with wildcards in a pop-up screen. (drumsticks come to mind, but it is all...
  23. k, thanks .ja.

    k, thanks
    .ja.
  24. you are welcome, keep at it! thanks, it is...

    you are welcome, keep at it!

    thanks, it is good to see the enthusiasm.

    Jim A.
  25. java.lang.IllegalArgumentException: No...

    java.lang.IllegalArgumentException: No implementation of method: :bacnet->clojure of protocol: #'bacure.coerce/BacnetClojure found for class: com.serotonin.bacnet4j.type.constructed.CovSubscription
    ...
  26. we must be having BEEts for dinner

    we must be having BEEts for dinner
  27. we must be having beets for dinner

    we must be having beets for dinner
  28. No Joy

    Screen capture: 360711

    tried it, got the splash screen, but not far from there...

    Received unimplemented vendor service: vendor id=24, service number=3, bytes (with context...
  29. Replies
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    Although not impossible, Modbus is not likely to...

    Although not impossible, Modbus is not likely to be available as it is currently an optional integration driver (on LGRs), and there would be no advantage as far as programming time.

    I don't know...
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    Automated Logic - Trends - BACnet?

    Was part of: Automated Logic- Device Instance



    I agree, but you cannot assign permanent Object IDs to trend wires, which means they are subject to change if the program is updated. That is a...
  31. Replies
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    Not calculate, no. We do combine that kind of...

    Not calculate, no. We do combine that kind of information to assign the device ID, but it is manually done according to our standard.
    I was initially a bit confused, I think you meant network...
  32. Replies
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    The ALC trend 'wires' are not BACnet trends....

    The ALC trend 'wires' are not BACnet trends. Collecting trends into a server is proprietary.

    Yes, BACnet objects would have to be exposed ("Network Visible" checked). Under BACnet configuration...
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    Since this occurs with only certain programs on...

    Since this occurs with only certain programs on two different machines, we will not be re-loading CCT. We have cleared the java cache, and the IE cache. I don't know that we have the 5.3.2 patch, we...
  34. Replies
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    I did restart the machine, I do not update java...

    I did restart the machine, I do not update java (the machine is dedicated), we have duplicated the problem with certain programs (not all) uploaded fresh from FECs on to at least two CCT machines.
    ...
  35. Don't worry, apparently it is illegal for the...

    Don't worry, apparently it is illegal for the cops, too.
  36. Replies
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    I am thinking I would have to look at russian...

    I am thinking I would have to look at russian dash-cams to get pictures.

    This is the one I was trying to find:
    ...
  37. Replies
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    Left coast, in a school zone: ...

    Left coast, in a school zone:

    http://abclocal.go.com/kgo/story?section=news/local/east_bay&id=8840796
  38. Replies
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    http://www.dailymail.co.uk/news/article-2220276/Ca...

    http://www.dailymail.co.uk/news/article-2220276/Cardiff-hit-run-Toddler-catapulted-air-caught-father-driver-mows-FOURTEEN-people.html

    Oh. Wrong country. My bad.
  39. doh

    Now that I think about, most of our drives are specified with bypass. That is how I was convinced to add the separate, external CT. If somebody set it to bypass, we can tell it is running full-tilt...
  40. Yeah, it's like calling anything hanging on the...

    Yeah, it's like calling anything hanging on the wall a 'stat. I know better. It's just more quicker.

    .ja.
  41. Replies
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    This is on an FEC, with IOM's connected for...

    This is on an FEC, with IOM's connected for expansion.

    The exception starts out like this:

    java.lang.NullPointerException
    at...
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    Siemens bought Staefa, then discontinued Smart II...

    Siemens bought Staefa, then discontinued Smart II and brought us Talon to the dealer channel.

    An option we like is to buy a sensor of your choice, matched with a 4-20ma transmitter. A 250 ohm...
  43. I would be wary of the status relays on the...

    I would be wary of the status relays on the drive, without profiling the current, you won't be able to tell if a belt broke, etc. (or you might not care). In general, we don't care.

    I agree,...
  44. 'Cause I lost that battle to politics. We mostly...

    'Cause I lost that battle to politics. We mostly have ABB ACH-550s, and they all have it. But, to standardize, since there are old Grahams out there, and tiny new japanese drives that come in on...
  45. Teach them that a closed contact and an open...

    Teach them that a closed contact and an open valve both let the current flow. My head 'bout exploded when those two ideas collided. I blame George Westinghouse for that beauty. Plumbers came first.
    ...
  46. Just wanted to say that this type does work well...

    Just wanted to say that this type does work well enough for fans without VFDs. right price range.
  47. Leave existing, working DP's in place. This a...

    Leave existing, working DP's in place. This a digital, or binary signal. Best for flow proof, especially with a VFD.

    Current switches (binary) marketed to work with VFD's are a PITA, IMHO. Please...
  48. Thread: PROT485

    by Mr_Greenjeans
    Replies
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    1,138

    Although I would shoot for the location with the...

    Although I would shoot for the location with the biggest risk (say, an elevator penthouse, or a fan in a doghouse) and then install a solid ground conductor; in your case it may not matter much, so...
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    The vendor. We do have an email request into the...

    The vendor. We do have an email request into the branch. We have a unique arrangement, where we are a 'dealer' for our own stuff. I am not hacking.

    It does not matter what we add into the state...
  50. Thread: PROT485

    by Mr_Greenjeans
    Replies
    7
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    1,138

    If you have it to use, it won't hurt. Think...

    If you have it to use, it won't hurt. Think surge suppression - it isn't going to fix any problem you have right now, but, it might put a damper on nearby (not direct) lightning strikes. I would...
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