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  1. Replies
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    And as an owner/Cx if I was looking for QC on the...

    And as an owner/Cx if I was looking for QC on the smallest of budget, I would spend 15min a unit and verify the safeties operate correctly. Its a one time check, quick and easy. In what I have...
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    Figured as much, no worries. The only thing I...

    Figured as much, no worries.

    The only thing I would be aware of on the RIB safety card is the dip switches and sticky fingers. These are for bypassing unused inputs. We typically have these in a...
  3. Pretty simple equation. Snake oil + parasitic...

    Pretty simple equation. Snake oil + parasitic fees = quick cash in bank & baffled customer.
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    I think you misunderstand. Removing the...

    I think you misunderstand. Removing the hardwired safeties is stupid and nothing I mentioned. If they are all auto reset and the BMS has some indication they have tripped, it can provide the manual...
  5. After any possible ligation is well done and...

    After any possible ligation is well done and settled. Its just in the phase of two outside MEPs reviewing the original design, owners internal ME getting involved.

    Piss fountain...
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    1. It could cycle with auto reset safeties...

    1. It could cycle with auto reset safeties unless they program it not to. No reason the system cannot have a software latch that requires a reset. Relying on the contractor to get this right is...
  7. TP holder detail would have been epic! ...

    TP holder detail would have been epic!

    Guessing metal fatigue hadn't set in and the welds must be perfect. $hit must have been shaking like crazy when those checks change position.

    And the all...
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    Better yet. Do they other similar working setups...

    Better yet. Do they other similar working setups on-site you can just look at.

    How much has this single VAV cost to date?
  9. Would have asked the fitters to weld a toilet...

    Would have asked the fitters to weld a toilet paper holder on the piping near the pumps. Put a specific detail for it in the mech drawings lol. If the pump switches, unsuspecting in the area might...
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    Or its the lack of imagination in RnD to come up...

    Or its the lack of imagination in RnD to come up with something novel like - If new value = current value then ignore...
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    Or maybe the comms are knackered and it just...

    Or maybe the comms are knackered and it just can't communicate and causing the hot/cold problems.
  12. Again, unless the pump package is directing the...

    Again, unless the pump package is directing the whole chiller plant what your talking about is using comms to some brain the orchestrates the whole mess between equipment. Comms required for proper...
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    Could if they used the 3113 property on all their...

    Could if they used the 3113 property on all their writable points. Off memory not all adjustable points require this. You also don't want to change this on read only points. Bit more work than...
  14. And lets assume it does work for a while... ...

    And lets assume it does work for a while...

    Can you imagine how many hours will be pissed away if that happens 5yrs down the road and everyone forgets about the hidden valve and it starts to leak...
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    What year is it?!?! Insert face palm here. ...

    What year is it?!?! Insert face palm here.

    All that garbage has cost far more than just about any standalone electronic control on the market which would be far less hassle to setup & test.
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    Least here is keep an eye on the socnets or good...

    Least here is keep an eye on the socnets or good luck. There is zero chance I'm signing up to get notification, so its a manual affair.

    Even there the local chapter redirects to a page that...
  17. The fact there is noise and the size of the...

    The fact there is noise and the size of the system, tells me valve choice is a non-issue.

    My guess, they are mixing existing CV floors aka old-school 3-way valve design with variable flow / 2-way...
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    They are common here. Trane seems to slap their...

    They are common here. Trane seems to slap their label on them in all their gear.

    Not bad to setup, don't mind the new ones too much. ABB setup still my fav. I have VLTs with old firmware that...
  19. They have the same issues if excessive dP is the...

    They have the same issues if excessive dP is the problem. Cracked open, they are the main pressure diff in the load and subject to all the same issues. These days there is really no reason to use...
  20. Would look into valve authority. Typical circuit...

    Would look into valve authority. Typical circuit setters are a fixed device that is only valid at a specific condition. At less than design, they do not prevent overflow. This has nothing to do...
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    Good reps will do the same this side of the pond....

    Good reps will do the same this side of the pond. Not sure how eager they are with random people not purchasing product from them directly. Call them and if they are not helpful, PM me.
  22. Thread: VPN Routers

    by orion242
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    Just a quick look it doesn't seem they are based...

    Just a quick look it doesn't seem they are based on Openvpn. Maybe I'm missing something. It does seem to be an actively maintained project though.
  23. Yeah, never heard a globe valve bouncing off its...

    Yeah, never heard a globe valve bouncing off its seat from a mile away under the same conditions...
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    Call these guys. I know they offer factory...

    Call these guys. I know they offer factory training and they should help point you in the right direction for contacts closer to you. The class I went to was held at a ABB site and lead by ABB...
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    Would have to dig up some old contacts, but I'm...

    Would have to dig up some old contacts, but I'm pretty sure you can get factory certified in WI. Went through it a while back and got to walk through where ABB final assembles and ship out complete...
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    Check your WB home trash folder. Mistakes end up...

    Check your WB home trash folder. Mistakes end up there many times.
  27. Thread: VPN Routers

    by orion242
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    I wouldn't say we have settled on any one...

    I wouldn't say we have settled on any one solution yet.



    You can setup any of the edge routers to dial out to an Openvpn server on the net, aka no port forwarding needed on the customer site. ...
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    Perhaps that because nobody is using them outside...

    Perhaps that because nobody is using them outside of a secret cult.
  29. Thread: VPN Routers

    by orion242
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    It prob more than capable of that for the minor...

    It prob more than capable of that for the minor traffic BMS requires. That said, the hardware is cheap but you need to invest in learning it which is mainly CLI for this. Its a one time cost...
  30. Thread: VPN Routers

    by orion242
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    Kinda my thoughts. If your really going down the...

    Kinda my thoughts. If your really going down the OpenVPN path for all your needs, which it can likely meet...you will learn the CLI at some point or look elsewhere. Be it some other GUI wrapper or...
  31. Thread: VPN Routers

    by orion242
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    All these cloud VPN solutions are a $hit show. ...

    All these cloud VPN solutions are a $hit show.

    Tosi and their marketing BS gets me fired up a bit. No cloud services...except the connection facilitating part they don't want to talk about. They...
  32. Thread: VPN Routers

    by orion242
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    Why not? ER8 and up seem to have a fair deal of...

    Why not? ER8 and up seem to have a fair deal of grunt behind them to handle this.
  33. Some chillers have AOs for this point, would take...

    Some chillers have AOs for this point, would take that over comms. Also dP on each chiller might cost less than a single flowmeter actually up for the game. One dP fails that machine might be...
  34. Thread: Pot Farms

    by orion242
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    LOL! Silly how these have become the rage of...

    LOL! Silly how these have become the rage of day. Local ASHRAE chapter meetings with long talks on them these days.

    Doubt there is a general rule as its going to be totally dependent on the...
  35. This is @ floor 5 and the pumps are at the top...

    This is @ floor 5 and the pumps are at the top >10 stories up. The control valves on the top of the building are almost certainly seeing diff pressures that 5-20% open will be screaming. Don't...
  36. Exactly. New tech with little track record, sure...

    Exactly. New tech with little track record, sure lets stake the multi-chiller plant on it! Think of all the money saved sitting in countless meetings only to go back and install what works should...
  37. Ditto on the auto-flow. KISS and far less than...

    Ditto on the auto-flow. KISS and far less than control valve + dP sensor and all the BS to setup.

    Would try that out one of the worst floor and see what happens.
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    Might be time to get a new niagara server to go...

    Might be time to get a new niagara server to go with your PC.

    Trying to get 90s era web technologies working with 20s era browsers is an exercise in futility.
  39. Static / fill pressure and dP are not the same. ...

    Static / fill pressure and dP are not the same.

    Noisy valves at part open usually means you have a crazy dP across the valve and its cavitation in the valve.

    Adding bypass valves isn't likely...
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    If I where you, I would get a handle on how to do...

    If I where you, I would get a handle on how to do this internally and manage generating the CSRs, CA signing and installing. Its going to constantly be expiring over the life of the system and I...
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    Google / niag central "recover unreachable jace"....

    Google / niag central "recover unreachable jace". Would do that as a last resort if you cannot get back in any other way. Would try as digo suggests first.

    Far as getting AX certs generated,...
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    Nope. Long as you have serial shell, you can...

    Nope. Long as you have serial shell, you can clean dist and reload.


    Just a tip that will save you alot of tears, hair and headaches....

    If your going to play with setting up SSL, make sure...
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    Industrial wouldn't be my first market to look at...

    Industrial wouldn't be my first market to look at for something like this. Plenty of critical spaces that would and do pony up for this. Hospital OR rooms, data centers, lab exhaust, pharma, etc.
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    I think its great idea to add this type of...

    I think its great idea to add this type of sensor. If nothing else, it feeds you good data that you can gain good knowlage. For the cost and benefit likely makes sense especially if you don't care...
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    And what freq & Gs is a screaming bearing? ...

    And what freq & Gs is a screaming bearing? Harmonics of any expected vibration that may be issue? Just a yes its not vibrating to the point of destruction and detecting something that anyone can...
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    Mounting, making it last in the installed...

    Mounting, making it last in the installed environment, reliable, etc....10^3 10^4 more.
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    And don't see any reason to not do so. If you...

    And don't see any reason to not do so. If you are though, the useful data isn't likely to come from a sensor chosen for the largest range. Speed and sensitivity are likely more useful with that...
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    JCI & dupe device instances? Shocked, shocked I...

    JCI & dupe device instances? Shocked, shocked I say!!

    It can also be programmables that points got pulled in, program was changed removing mapped points, and now they are dead links each one...
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    If you have suction / discharge pressure...why...

    If you have suction / discharge pressure...why bother with the added headache.

    No lift...no run...
  50. Bit more than that off memory. As I recall they...

    Bit more than that off memory. As I recall they are sampling at specific points within the pump and have characterized that in the lab. Knowing flow at the pump and static 2/3rds out in the system...
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