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Type: Posts; User: B_roche

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  1. Replies
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    Odd, my iPhone isn't even offering me 13. ...

    Odd, my iPhone isn't even offering me 13.


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    Ooh sorry apple doesnt allow societal rollbacks....

    Ooh sorry apple doesnt allow societal rollbacks.


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    Supposedly it's all in the cloud. Them and that...

    Supposedly it's all in the cloud. Them and that f'n cloud (nope, no SD card on account of the cloud. Boo).

    I recently smashed one and the replacement did pretty ok-ish with my information. All...
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    Dude it stops functioning when it's in motion?...

    Dude it stops functioning when it's in motion? Eeewwww!

    Every update breaks my phone (6) a little bit worse, I could go on and on with the bugs. Nothing has ever improved from an update.

    So we...
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    Especially trane, with that delicate flower of a...

    Especially trane, with that delicate flower of a scroll.


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  6. Makes perfect sense. Ok sir I'll accept that...

    Makes perfect sense. Ok sir I'll accept that answer lol thank you.


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  7. X2 Sent from my iPhone using Tapatalk

    X2


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  8. It's so obvious now that you said it. I can't...

    It's so obvious now that you said it. I can't figure out how I didn't catch that before.

    At least I'm not the only one....


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  9. look for the solution for keep head pressure down in 120 F ambient

    Did something change? How did it run for 5 years? That's a 150 degree head and standard design, almost 400 psi on r22. It's just not designed for that so I'm not sure.


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    Digital scrolls are pretty new. Magnetic bearing...

    Digital scrolls are pretty new. Magnetic bearing centrifugals are only ten or fifteen years old. Those god awful micro channel condensers....


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  11. Replies
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    Or just fashion a valve plate out of an old...

    Or just fashion a valve plate out of an old I-beam and use several layers of green construction paper as gasket material.


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    You can get valve plate kits from any Copeland...

    You can get valve plate kits from any Copeland distributer.


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    I wouldn't go that far. He knows the rules enough...

    I wouldn't go that far. He knows the rules enough to know how to break them for himself. Unfortunately I know how guys that get caviler about these things.

    He is probably a wealth of knowledge in...
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    New, defective txv?

    Which is quite clever. Here's why-

    You see, an externally equalized TXV uses suction pressure as the driving force, where as an internally equalized TXV uses suction pressure. So, if you cap off...
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    So 30 deg evaporator, up to 88 at the...

    So 30 deg evaporator, up to 88 at the accumulator, then back down to 51 entering the compressor? Interesting....



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    There's a big emblem on that name plate that...

    There's a big emblem on that name plate that says"hecho en Mexico". I'll assume hecho means made.


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  17. Why do we control AHU fans to duct static pressure

    Yeah in fact I have a carrier system that appears to be ignoring the apparent static SP because either

    A) it's simply designed to ramp based on box demand (which I can see it is monitoring but...
  18. Basically when that damper at the end of the line...

    Basically when that damper at the end of the line opens and starts dumping air, static drops. That's how the ahu knows to ramp up... Now it's gotta maintain the same pressure as before but with...
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    Oh I didn't catch that Sent from my iPhone...

    Oh I didn't catch that


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  20. Replies
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    I would agree that it's probably very slight and...

    I would agree that it's probably very slight and short lived. But if it's REALLY cold out, like really cold, I could see that cold air jerking the liquid right out of it's little shoes, really...
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    He's got a point though, it does make sense that...

    He's got a point though, it does make sense that the liquid that's holding that vapor could increase in volume and that could be the official driving force, though I think that would be in...
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    Well I did read that the vapor separation vessel...

    Well I did read that the vapor separation vessel is the big difference, that part I was able to comprehend..


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    I tried to follow the text for the specifications...

    I tried to follow the text for the specifications and claims of the second one and just couldn't hang.

    I'd have to read that about four times and slowly contemplate every word....

    But it is a...
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    Yeah well it's one of those things that I love to...

    Yeah well it's one of those things that I love to talk about but there's never an appropriate place for...

    So yeah it feels like something of a non sequitur reading it back, maybe a little out of...
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    I used to care for some large chillers that were...

    I used to care for some large chillers that were chilling liquid r22 down to the mid 20's. The liquid 22 was pumped through pipes to a giant coalescer and then pumped out to smaller Cascades (as well...
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    U mean a Cascade or you're talking about...

    U mean a Cascade or you're talking about something different?


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  27. Replies
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    Yeah it just keeps all my forums under one roof...

    Yeah it just keeps all my forums under one roof but it can really screw me up too. Actually it's more the iPhone keypad.... It's my work phone. For the record I lobbied the boss to switch to Android....
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    Which system is correctly charged?

    Honestly I tried to edit that right after I posted it, but my phone wouldn't let me- please disregard. My phone got all glitchy


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  29. Replies
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    And this happens while measurable subcooling is...

    And this happens while measurable subcooling is present, correct?


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  30. Replies
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    Which system is correctly charged?

    I think the question implies that Sg was unclear and you stopped charging exactly as it cleared.

    I think it implies by exclusion that there is no receiver. The question is bare bones fundimental...
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    With a motor master set to 110 deg! Personally I...

    With a motor master set to 110 deg! Personally I hate fan cyclers, especially when I see them on capillary tube systems, but their just a necessary evil sometimes.


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  32. Replies
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    Very interesting. I've been using the bare...

    Very interesting. I've been using the bare minimum but it makes perfect sense.


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  33. Replies
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    Sorry if I led you on but seriously just wanted...

    Sorry if I led you on but seriously just wanted to clarify about the refrigerant thing. Jeeze this is awkward....lol


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  34. Replies
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    Thank you guys. Sent from my iPhone using...

    Thank you guys.


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  35. Replies
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    Aah perfect ok. That was what I thought but I...

    Aah perfect ok. That was what I thought but I felt like I had read a very smart person contradicting that.

    Of course I'd get irritated and start flipping through when the arguing got going, man...
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    This has been an awesome thread but one thing is...

    This has been an awesome thread but one thing is occurring to me- I cant see the first through the trees on this thread.

    My answer would have been-

    if you charge it on the cooler day, it would...
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    I always feel like I'm not quite getting it right...

    I always feel like I'm not quite getting it right when i do statics. I just feel like if I measure DP I'm probably duplicating my error at similar test points, and the difference between my two...
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    The problem is that if we're the service tech...

    The problem is that if we're the service tech trying to troubleshoot, we don't have access to all the tools that a balancer has, nor can we justify the time to take all the readings in many cases.
    ...
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    Fan statics. Hypothetical situation.

    If you meant to say the return was blocked, I'm with you.

    Theoretically blocking the return would reduce the supply static by the same percentage. I find on static readings that it just doesn't...
  40. I am the renters Sent from my iPhone using...

    I am the renters


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  41. Sho is Sent from my iPhone using Tapatalk

    Sho is


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  42. My instructor, an experienced tech, brought this in...

    I don't do resi, but every now and again i wind up in someone's basement. They ALWAYS have that flex gas line on the last couple feet. I was surprised that got it's own photo.

    Just outta...
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    You wouldn't happen to have a picture of that...

    You wouldn't happen to have a picture of that would you?


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    You couldn't oversize a receiver could you? I...

    You couldn't oversize a receiver could you? I mean it would just add up to unnecessary refrigerant being needed to fill the void.... Right? Or no?


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    The exclamation points are surprisingly...

    The exclamation points are surprisingly disconcerting for me, downright dizzying actually. Dunno why I'm so effected by them but wow, really throws me off.


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    Thinking about cutting the cord?

    I don't watch tv but my wife and daughter do. They have been using a roku for years. Im quite sure they prefer the roku to cable though.

    That first article was a bit silly though.... One of the...
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    You need to know if there's subcooling to assess...

    You need to know if there's subcooling to assess the charge. You would want to block off the condenser to simulate roughly 80 ambient (110 saturated) and then check.


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    One of two fans running?

    Is there no schematic?


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  49. Replies
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    Why is this inherent to specifically single...

    Why is this inherent to specifically single compressor systems? I hadn't realized this was the case.

    Also I've always thought of this heat exchangers job as simply to boil off refer so the...
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    Hot gas defrost

    My guess would be that the heat source would be for dehumid and the suction line valves are probably EPR's that have solenoids that go full open to allow free flowing hot gas during defrost, and...
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