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Type: Posts; User: Knife Switch

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  1. Are they targeted at more than just home...

    Are they targeted at more than just home automation? Plus I wonder what'll be the deal with Apples Homekit...
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    Hah ha it's mindblowing isn't it?...

    Hah ha it's mindblowing isn't it? Calculating/testing the resonant frequency of a centrifuge to break hundreds without being noticed (just for starters) WITH NO commissioning period. And it worked....
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    Visio builds graphics, you can draw like you're...

    Visio builds graphics, you can draw like you're asking but you almost never have to. Visio can import Autocad Blocks, and besides, there's more Manufacturer specific palettes for Visio out there than...
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    c

    c
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    An IO board that's BACnet compatible......

    An IO board that's BACnet compatible... welllll...
    Here's a IP Gateway KNX-BACnet https://hit.sbt.siemens.com/HIT/modules/kernel/UI/GetBinData.aspx?RC=HQEU&LANG=en&VALUE=Assets%2fA6V10432087.jpg
    ...
  6. Most of the earth/ground points on controllers...

    Most of the earth/ground points on controllers are 'soft earth' terminals, which basically means they don't connect to ground or anything, they're just there for convenience like a loop terminal on a...
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    You know, it's kinda unrelated but I've always...

    You know, it's kinda unrelated but I've always earthed BOTH ends of the shield between VFD and motor (via metal glands). When I was an apprentice a service rep for Zener told me to do it that way,...
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    I might get that put on a bumper sticker! lol

    I might get that put on a bumper sticker! lol
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    I modified a second hand 'portable printer...

    I modified a second hand 'portable printer trolley'. Cost twenty bucks and folds up. Little solid though.. I'm only saying this cos there doesnt seem to be muck of a range, but when I started looking...
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    I wish I had a copy to post of a recent spec that...

    I wish I had a copy to post of a recent spec that said how the front end had to be at minimum a 486 processor and gave a page of specs that were minimum ten years out of date
  11. Autocad is like a high maintenance girlfriend,...

    Autocad is like a high maintenance girlfriend, you have to put the work in, but it can be worth it.

    Visio's libraries (stencils) are easier to use, and coloful.

    But I found visio difficult...
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    The one that you can install without the cheap...

    The one that you can install without the cheap s*(t plastic covers breaking.

    Also +1 for Reliable's for their sheer simplicity. I initially scoffed at them but simplicity can be a bonus.
    ...
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    Unless you REALLY need a PLC then you're better...

    Unless you REALLY need a PLC then you're better steering away from them. Anything analogue (which we have a fair bit of in HVAC control) is nastily expensive with the higher end brands like Allen...
  14. How many states do you need? Couldnt a virtual...

    How many states do you need? Couldnt a virtual LAO work?
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    Most controls companies will deliver all of what...

    Most controls companies will deliver all of what you request if you call them on a HV phoneline. This is achieved by using your left hand to grasp the red phase, and your right to grasp the blue...
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    The main questions you really see on here are...

    The main questions you really see on here are about spyder stuff, I haven't seen a thing about comfort point (native bnet)..
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    No they haven't, but Honeywell management is a...

    No they haven't, but Honeywell management is a bit ... different. Maybe it's an attitude thats held-over from the old days when ANYTHING brand related was kept as secret as possible. I like to...
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    Emerson? The tech data with their VSDs'... still...

    Emerson? The tech data with their VSDs'... still gives me nightmares. Some of the guys on site coined the phrase "Why Choose EMerson?... Because F&*k you, that's why."

    Sorry for being no help
  19. Does a different browser work? And could it be...

    Does a different browser work? And could it be something to do with ipv6 being a default compared to 4 in xp? (I'm not a it tech so apologies if this is nuts)
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    For electrical? Or for controllers themselves?...

    For electrical? Or for controllers themselves? Theres HEAPS of hvac libraries for Visio, but for cad you often have to draw your own if controllers are what you're after.
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    HOW TO CONNECT AHU ROOM. Found a nice way to...

    HOW TO CONNECT AHU ROOM. Found a nice way to connect AHU rooms. If you've got a quantek mod you can set it to asym(3,4,9) and connect to the SCP_INFLINK relays between 0900 and 1450 (usually. common...
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    While I do like some Siemens features (I'm...

    While I do like some Siemens features (I'm talking about Apogee here) their hardware prices are some of the highest. And their ability to coldstart WAY too often can be frustrating. (And before...
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    Autocad controller blocks

    Anyone know where to get autocad blocks or just drawings of various controllers...
    mainly schneider and alertons. I seem to remember they used to be on their respective websites but don't seem to...
  24. Thread: vav

    by Knife Switch
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    Similar thing happened to my grandfather, except...

    Similar thing happened to my grandfather, except he got bitten.. After several days in absolute agony and sickness ... the snake died
  25. Thread: vav

    by Knife Switch
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    I agree, I like helping as well (despite this...

    I agree, I like helping as well (despite this thread) but what I don't like is having a question flung at me like I'm someones lackey. It's arrogant, really. people shouldn't ask someone to engage...
  26. Thread: vav

    by Knife Switch
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    I was even in a charitable mood when I wrote that...

    I was even in a charitable mood when I wrote that post, but not so much today...
    Zill...
    You may not be experienced at hvac, but there are some self-evident truths that transcend specialist tech...
  27. Thread: vav

    by Knife Switch
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    It'd probably help if you added more detail zill,...

    It'd probably help if you added more detail zill, there's not just one way of doing this, explaining your system will help you get a more accurate answer
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    The quality of the images is pretty bad after I...

    The quality of the images is pretty bad after I uploaded, and they are A3, if you could see them clearer there are dots on joining wires.. thanks for the input!
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    Can you give me your opinion on

    Which of these wiring diagram styles would you prefer to work from.. NB they still need a little polishing, but the layout won't change. Sorry for the A3..

    Basically I'm trying to get more info...
  30. Thread: vav

    by Knife Switch
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    I thought you were serious at this point! Ha ha...

    I thought you were serious at this point!
    Ha ha ha hah awesome post. I love these kinda questions, but they seem to be trying less and less with grammar and cover story

    Funny as reply too matrix...
  31. Green sleeving over drain wire, white heatshrink...

    Green sleeving over drain wire, white heatshrink over point where outer insulation finishes (and green sleeving begins) with cable label written on it. Wire numbered of course, even tho I HATE WIRE...
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    AutoCad controller blocks

    Does anyone know of a good source for Cad blocks for the major controller manufacturers to put into electrical wiring diagrams

    I'm drafting for an electrical installation company, and was...
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    There are some awesome relies on here, I found...

    There are some awesome relies on here, I found myself saying "Hell Yeah!" alot. Definitely being blamed for every problem until you can prove otherwise (Hence my signature).

    To be good at...
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    We have had some problems down here in oz with...

    We have had some problems down here in oz with regard to insufficient primary airflow (via swirl diffusers) when humidity is high. Once it gets into the building, it can be difficult to get a handle...
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    With an official Johnson presence already here I...

    With an official Johnson presence already here I doubt the main company would supply us the hardware at a price that would let us compete with them, not to mention any software licensing
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    I'd like to be a 'free agent', but once the time...

    I'd like to be a 'free agent', but once the time spent learning a new system (to a degree where I can engineer a job efficiently) is factored in it I don't think I could justify the hours to my boss....
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    Thanks, I really like the idea of using a local...

    Thanks, I really like the idea of using a local product too, didn't even know we had the option in oz
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    Thanks kontrol, I was hoping you'd see this...

    Thanks kontrol, I was hoping you'd see this thread. I'd found delta via google, but wasn't aware there was a local product
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    Suggestions on DDC/BMS systems

    I'm currently working at an electrical company, specializing in HVAC, and the thought occurred to me that we have an opportunity to expand from just the mech elec install to also providing the...
  40. Maybe check your laptops bacnet address?

    Maybe check your laptops bacnet address?
  41. Mech/Hvac electrical drafting & project managing

    Hey all,

    I'm hoping to start drafting (hvac control electrical cct design etc) at the company I just started at, and I wanted to see if anyone had any ideas to help make my drawings better. (and...
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    Double checking the trend definitions and making...

    Double checking the trend definitions and making sure that there arent any trying to collect from dead/old points might help? Consider adding SAMPLE(30) or something to the code where it's looking at...
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    It's worth noting that some controllers don't...

    It's worth noting that some controllers don't like the secondary grounded, I'd definitely check with the manufacturer.
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    Slowing the ramp up / down time might help, look...

    Slowing the ramp up / down time might help, look online for the tech data, there's heaps available on schneider vsd's, there'd definately be a point/parameter to slow down the hunting
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    Just playing around with it is the best way...

    Just playing around with it is the best way really, you can click points on the curve and have the values calculated, or even enter valeus and see corresponding data. A handy tool
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    You can't calculate SA temp, you need to measure...

    You can't calculate SA temp, you need to measure it.

    check out this chart, its the best i've seen (it's an exe psychometric interactive chart by daikin)...
  47. Nobody needs CP :) damn crashes

    Nobody needs CP :) damn crashes
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    Honeywells purchase was quashed by europeans on...

    Honeywells purchase was quashed by europeans on some kind of "anti-monopoly" grounds, didn't it have something to do with the eurofighter too?

    I was at TAC shortly after they acquired invensys,...
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    One of the biggest challenges stepping into...

    One of the biggest challenges stepping into programming is knowing what to make the unit do.. IE what temp to kick the compressor in, when to cut it off, building in a bit of a dead zone sometimes to...
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    I agree with alot of what you say, but we're...

    I agree with alot of what you say, but we're talking at cross purposes a little

    First of all, I don't think these glasses would be for any in depth technical work, and they also wouldn't be bulky...
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