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  1. Fan cycle + Head Master? (Just haven't seen the...

    Fan cycle + Head Master? (Just haven't seen the two together. Thanks
  2. Liebert did that (at least used to). It would...

    Liebert did that (at least used to).
    It would let the compressor run with the low suction condition (2 min IIRC).
    Sometimes you'd even see the compressor do a 'stop-restart' after the delay expired...
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    Cold weather/data units - often = a time delay...

    Cold weather/data units - often = a time delay function of a few minutes across the LPCO to let a system pressures get up to speed.
    A thought to toss in.
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    Ok I see now where I became unsure with this. And...

    Ok I see now where I became unsure with this. And the answer was right here at the site in Yellow Jacket's section of 'Hose adapters valves' catalog.
    I use the larger dia. '19109 and 19209 style...
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    This? The 'thrust bearing sounds like a nice...

    This? The 'thrust bearing sounds like a nice feature, but are there's some other ('improvements) in them..? Maybe you were just meaning for quick connect options rather than the isolation' idea....
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    I'm not actually sure about it. I've spoke to...

    I'm not actually sure about it. I've spoke to YellowJacket.. but if I recall that notion may have come from chats with RSD.
    I couldn't find the specs or any qualifiers' at Yellow Jacket just now so...
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    A tool I wish I'd found years ago..

    On the subject of 'quick connects and refer hose accessories.. I've been meaning to get this out.. share it :cheers:

    This a bit of praise for an item- and hopefully something others will find as...
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    Can we get clear here please? The 'problem is...

    Can we get clear here please?
    The 'problem is inconsistent control response only, or also failing in other ways too?

    What are these switches you have that are some '50-60% off'? (They are...
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    Here's one. We serviced.. (an Aaon I believe it...

    Here's one. We serviced.. (an Aaon I believe it was) that was eating cond fan contactors. Took us a while to catch the problem. They had the little flare screw-on modules for fan staging.. We found...
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    Hi. Well for one this is a bit of an experiment....

    Hi. Well for one this is a bit of an experiment. Not advocating', just offering it as a means to get to the same place (via temperature instead of pressure). It won't ever leak. It's plenty flexible...
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    http://www.zoro.com/johnson-controls-electronic-te...

    http://www.zoro.com/johnson-controls-electronic-temperature-control-spdt-a419abc-4c/i/G4685694/?utm_source=Bing&utm_medium=cpc&utm_campaign=PLA
    Sensor strapped insulated and wrapped onto the liq...
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    'Sideshow as is distracting from the core idea.

    'Sideshow as is distracting from the core idea.
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    So what is your point- or questioning? That I...

    So what is your point- or questioning? That I chose a poor scale' - in this very basic of example for the real point?
    And I had to look it up for a refresh- a single point manometer? No, and that...
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    At risk that you do actually understand this, but...

    At risk that you do actually understand this, but maybe not just expressing it well- The point is it has to be a differential pressure difference reading. (The optional' method you are [were]...
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    Stand with face near door. Crack door open- =...

    Stand with face near door. Crack door open- = 'ARBS (Approximate Relative Building Static :>)
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    Depending on the system etc, yep this is what you...

    Depending on the system etc, yep this is what you might run into with the min speeds. That and both cycling on and off. 'Cue Liebert- Dividers and OSA stat.

    Let us know how it goes ok?
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    "Monday Monday..."

    "Monday Monday..."
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    Typically- a no brainer. But there's exceptions....

    Typically- a no brainer.
    But there's exceptions. I've had people who can't get the concept that if you're getting in 130 deg car even on a ninety something day leaving the windows down with the ac...
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    Compressors, 460, about 20 - 23 amps typically.

    Compressors, 460, about 20 - 23 amps typically.
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    Contactor quality?

    Anyone seen anything recently- say last several years in suspect contactor failures?
    Specifically, the common 30 amp Mars 61430- replacement of the Furnas 42BF35AJ. ...
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    Thanks for that explaination on the cond air....

    Thanks for that explaination on the cond air. Makes sense now.
    Re the other';
    Go tell you're customer they can thank their manufacturer for turning their once-a-year-for-the-life of the unit '20...
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    Bigger buildings built that way did make it...

    Bigger buildings built that way did make it easier to re-balance rooms for sure.
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    Who collects the bets around here anyway? :angel:

    Who collects the bets around here anyway?
    :angel:
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    Or, one would ask was it something like that from...

    Or, one would ask was it something like that from day one and it caused the failure. (would it be good to assume if you have 7 s/h now it'll be flooding back at a hundred and five'?
    Any service...
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    Or they're those damn dual layer coils and they...

    Or they're those damn dual layer coils and they just look clean.
    Is the air blowing almost straight up out of the fan.. or angling out '45, 75 degrees?

    Trane likes to do this stupid pet trick' as...
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    Would it be considered a down side in that it...

    Would it be considered a down side in that it increases the amount of conditioned space?
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    You know on second thought, if I were instructing...

    You know on second thought, if I were instructing someone real new for example, I guess I'd want it on record to advise safety tools like that. At least until one is comfortable in the field to...
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    Exactly, perfect! Got to love the 'rust...

    Exactly, perfect!
    Got to love the 'rust solution. With the old longer '4-in-one's, a day after some wet work the needle nose pliers come out to get the tips swapped.
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    Exactly, perfect!

    Exactly, perfect!
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    Was there a quality issue' in that regard? For my...

    Was there a quality issue' in that regard? For my part I figure they're 'pulling out is a natural compromise of having a good fit, especially in Philips heads, and short tips.
  31. Don't give up. From what I've seen anyway this...

    Don't give up. From what I've seen anyway this one has been - 'is, atypical.
  32. Replies
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    That was the one I meant to link to :) I love...

    That was the one I meant to link to :) I love having 3/8, 1/4 and 5/16 all in one. I still carry one 1/4 square drive for tougher hex sockets work, but this one eliminated a bunch in the bucket....
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    http://www.globalindustrial.com/p/tools/Screwdrive...

    http://www.globalindustrial.com/p/tools/Screwdrivers/Screwdrivers-Multi-Bit/10-in-1-screwdriver-nut-driver-32477?infoParam.campaignId=T9F&gclid=CNf224vY58YCFY9hfgod41wPUA
    I carry this one as well....
  34. I did that for a while until I finally got around...

    I did that for a while until I finally got around to asking 'what is it about these?- when never had this problem with clips before..
  35. Been meaning to do this.. little rant on Mars- and their test leads..

    Mars' they sell pro stuff, use their stuff all the time.
    #86070 Test Leads /Clips
    http://www.rsd.net/item.php?item_no=MARS+86070
    They should know better.
    These are like, IDK, you ever get a...
  36. Shoot, that reminds me. I haven't heard squat...

    Shoot, that reminds me. I haven't heard squat from Parasence for a 'starter quote.
  37. Electric aiir comp auto drains- $120--$350!

    Looking at recomending a new drain for my customer, seeing this wide range in pricing.
    Just looking for recomendations in a decent relaible time adjustable drain?
  38. I'll look into them. 'Detection was where I began...

    I'll look into them. 'Detection was where I began searching and questioning.
    When you look at the implementation in split systems, long pipe runs out door condensers.. lots of air flows inside and...
  39. That is possibly as valid as S/H. I think the...

    That is possibly as valid as S/H. I think the band with subcooling between 'right and 'low charge might actually be a narrower and tougher target to track.
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    Excellent! Thank you! wayne

    Excellent! Thank you!
    wayne
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    Mods, may we re-title my thread?

    After coming back to this thread, I realized that it's title miss-directed in large part away from the intent I want to focus on.
    May we re-title it to;
    'Large freon loss prevention via High Super...
  42. Lots of good points. However.. -Not proposing...

    Lots of good points. However..
    -Not proposing them for small units. I see a facility that has 50 some odd 30-50 ton units that average 70 to 100lbs each circuit (100 circuits.. :whistle:
    - Loads,...
  43. Bump.. Why wouldn't some manufacture not put a...

    Bump..
    Why wouldn't some manufacture not put a device out?
    Fieldpeace can do the basics for $150, all that's missing is power via 24vac and an alarm contact!...
  44. Sorry I didn't explain better, but you've got it...

    Sorry I didn't explain better, but you've got it exactly.
    I couldn't find a sweat x FPT but I did find a solution - a brass ST 90 which I'll braze into the old copper FM threads.

    I do like that...
  45. Copper threads and pop-off's; Would you trust a sealant (again?

    I've run into this before; a 1/2" FM threaded copper is softened from the brazing, now leaking.
    I'd prefer what I've done before which is brazing in a brass 7/8 sweat x FIP (still looking for that...
  46. I've wanted o do it and it makes sense except...

    I've wanted o do it and it makes sense except it's complicated by the larger and quicker temp dif in a stage on/off points in the S/A vs the return.
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    I've kick started canisters in that manor too ...

    I've kick started canisters in that manor too (Carnes comes to mind?). But now I'm sitting here wondering.. If the minerals are too low, why would it be flushing- isn't that it's means to dilute? I...
  48. Cool. Now you can have shot at mine :whistle: ...

    Cool. Now you can have shot at mine
    :whistle: ;)
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    What ever it ends up at just make damn sure it's...

    What ever it ends up at just make damn sure it's below the pop-off's if there are any :>)
  50. Anyone heard of VFD noise emanating from the exhaust wheel?

    Anyone heard of VFD noise emanating from the exhaust wheel?
    I was called to look at some Greenheck exhaust fans at this site.
    A few of the twelve fans recently put on line have what sounds like VFD...
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