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  1. Replies
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    That area is still in the public forums, not...

    That area is still in the public forums, not private, where in depth technical discussions can occur.....and you also joined another older thread for your new issues, which is generally look down on....
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    Darren, you have enough posts to apply for PRO...

    Darren, you have enough posts to apply for PRO membership. Do this, and have this thread moved to the closed forums.....this one will likely get shut down, due to the in depth technical...
  3. the surrounding ground temps will "creep"...

    the surrounding ground temps will "creep" in.....the area around the pool will not maintain 84* with a small BTU input over the long term. eventually it will equalize, then the exterior (colder)...
  4. We deal with that in the opposite spectrum with...

    We deal with that in the opposite spectrum with ice rinks.

    It's based on the thermal properties of the surrounding media, and the ambient temps.

    Basically, the heat will only travel so far...
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    Or you can clean the orifices....If they don't...

    Or you can clean the orifices....If they don't want to spend a ton of money, and are planning for replacement down the road.
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    YO! Shoot me a message with pricing! thanks!

    YO! Shoot me a message with pricing! thanks!
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    Cause the condensate drain is plugged up, and the...

    Cause the condensate drain is plugged up, and the entire inside of the unit insulation is soaked, and water is migrating out unber the panel covers?😝
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    Yeah prolly so, but look at the dark spots under...

    Yeah prolly so, but look at the dark spots under the blower access panel.

    I would also think there would be oil all under the compressor panel.
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    this falls into the category of "right to repair"...

    this falls into the category of "right to repair" laws.

    the aftermarket auto industry has been fighting this for MANY years.....now tech companies are in the mix, and apparently HVAC will be next....
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    With a building like that, they shouldn't be...

    With a building like that, they shouldn't be thinking of heat loss! LOL!!

    it's the plague of all great architecture......sacrifice efficiency for asthetics.

    if they want to do something, they'd...
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    and what's your full model number? Page 3 is...

    and what's your full model number? Page 3 is nomenclature.....yours must be a "RGS119"??


    https://www.shareddocs.com/hvac/docs/1011/Public/02/50931352301.pdf


    page 61 here is the diagram: ...
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    you have your pressures also?

    you have your pressures also?
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    A scroll isn't gonna care about pumping...

    A scroll isn't gonna care about pumping liquid.....a recip is gonna have other thoughts on the matter.
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    True, but it's a horrible idea for recip ...

    True, but it's a horrible idea for recip compressor.....
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    The LLSV should close on loss of cooling call,...

    The LLSV should close on loss of cooling call, the compressor should keep running, then shut down via the low pressure control.

    If that's not happening, liquid is staying in the low side then...
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    If youre getting a lot of foaming (refrigerant)...

    If youre getting a lot of foaming (refrigerant) that will cause the oil to carry out the discharge faster.

    Usually though, it's some kind of mechanical problem. Valves rings, etc. I don't think...
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    Got a model number, so we know what we're dealing...

    Got a model number, so we know what we're dealing with?
  18. Replies
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    Filters are likely in the far left panel,...

    Filters are likely in the far left panel, electrical and fan in the center behind the disconnect.

    If its hasn't been serviced in 2 years, you'll need a new belt (unless direct drive), clean the...
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    Sounds pretty normal then!! LOL!! I looked at...

    Sounds pretty normal then!! LOL!!

    I looked at one a few weeks ago. They have some larger tonnage trane RTUs....only maybe 5 years old, and have already replaced half a dozen compressors.

    If...
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    I'm looking at adapting aftermarket chargers, but...

    I'm looking at adapting aftermarket chargers, but it's gonna be some work.

    Even thought about disconnecting the H10 charger, and installing a direct 12v charger, so you can use the vehicle...
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    I may be interested....do they both charge the...

    I may be interested....do they both charge the batteries ok?

    Mine just started having charging problems, only sending 11.3 volts to the battery.

    Depends on your price, i would be buying new...
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    I get it....I've worked with several facilities...

    I get it....I've worked with several facilities out here.

    When legalization happened, there was a huge rush to get facilities built and producing as fast as possible, to capture the market share....
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    Here they...

    Here they are...https://uploads.tapatalk-cdn.com/20220905/86dde12c3efd1dc6b54f6a231a92f593.jpghttps://uploads.tapatalk-cdn.com/20220905/c8ff7a41bdd3ad36aea5d6bca0e22131.jpg

    Sent from my SM-S901U...
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    I've got a pic somewhere of my tools. Lemme look...

    I've got a pic somewhere of my tools. Lemme look around..... you really need surprisingly few tools to service most equipment.
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    You have 10 tons of unit on prolly 5 tons of duct...

    You have 10 tons of unit on prolly 5 tons of duct work.

    Was there any actual load sizing done, or was it pretty much like all grow facilities.....toss something on and hope it works?
  26. Replies
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    I've never understood people wanting to carry...

    I've never understood people wanting to carry 50lbs of tools around all the time.

    I use a veto TP4. It weighs under 14lbs and has everything I need to service pretty much any unit.

    If I...
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    If the place is getting demo'd within a year,...

    If the place is getting demo'd within a year, just fabricate some parts out of sheet metal, and be done with it.

    Be pretty easy to make a small blower housing within an hour or so.
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    You might be able to retrofit from another...

    You might be able to retrofit from another make/model.

    Just get a whole new motor/squirrel cage assembly and make it work.
  29. Replies
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    Hopefully, we'll have a new member soon, that is...

    Hopefully, we'll have a new member soon, that is better than reading the book!!😉🤐
  30. Replies
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    Yeah, I'll second that book. It helped me a lot...

    Yeah, I'll second that book. It helped me a lot when I first started doing refrigeration work.
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    As far as core tools, I think appion is heads and...

    As far as core tools, I think appion is heads and shoulders above the rest. They actually vacuum "certify" thier tools.

    For gauges, I use digicool, but they are no longer in production. ...
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    Any time you have an inverted trap, it can be a...

    Any time you have an inverted trap, it can be a problem. Any high spot in the piping should have an access valve to bleed air. On open loop systems, it's usually not a good idea to install auto...
  33. Thread: Vacuum Gauges

    by 71CHOPS
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    I believe one of the guys involved with...

    I believe one of the guys involved with developing those, is involved with bluvac.

    There was a thread years ago here, with a long discussion about gauge technology and development.

    Even...
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    https://youtu.be/9cn7xfBpZ3M

    https://youtu.be/9cn7xfBpZ3M
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    We ended up doing it last week. Yeah, just used...

    We ended up doing it last week. Yeah, just used hot water. They weren't really that bad.

    We removed the fan grills and wrapped the motors with plastic, then covered the front to keep any spray...
  36. Thread: 448-404

    by 71CHOPS
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    Yeah, not sure what genius thought that one...

    Yeah, not sure what genius thought that one up.....We've got how many different "replacements".....and now all the drums are the same color....way to go guys!!
  37. Thread: 448-404

    by 71CHOPS
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    ahh, a man after my own heart......the...

    ahh, a man after my own heart......the technicality game!!:grin2:

    "technically".....the only time it matters is when you send it in for recycling.

    but, as we all know, industry "good practices"...
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    Yeah, I've seen similar contactors, once or...

    Yeah, I've seen similar contactors, once or twice.....prolly on 70's Era units.
  39. Replies
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    After this thread came up, I was working on my...

    After this thread came up, I was working on my Mammoth unit, and noticed both slab coils (3 circuits) had traps leaving the coils, and all the sensing bulbs were downstream.

    The 2 larger...
  40. If you have 210 psi at the outlet of the...

    If you have 210 psi at the outlet of the evaporator (and you pinched the hot gas) then you have a compressor problem......gas powered, open drive? (assuming a recip then).....sounds like bad valves,...
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    Verify your sensors and transducers are accurate....

    Verify your sensors and transducers are accurate.

    Also there is a several second lag between the actual pressures and what the display shows. So the display can "miss" an event.
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    Yeah, it's actually working out well, since the...

    Yeah, it's actually working out well, since the "box" isn't sealed.

    I appreciated the advice TMT, I have a feeling we would have had problems, not having that many defrost cycles.
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    I used to use a spam Google email account, but...

    I used to use a spam Google email account, but ended up changing it. I've been on this site for prolly 12 years, and never had any issues.

    Once you can send and receive private messages, it...
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    Well, there you go.....proceed with caution!!...

    Well, there you go.....proceed with caution!! LOL!!
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    Are the CSHA's "3D" scrolls? In the literature...

    Are the CSHA's "3D" scrolls?

    In the literature for them, they can run POE
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    Not sure if Trane has the CSHA's on the "Do not...

    Not sure if Trane has the CSHA's on the "Do not convert" list......some you can't.

    looking at the data, they are approved for 407C, and would need POE oil, so you may be ok changing those over.
    ...
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    When it comes to "controls guys", the ones with...

    When it comes to "controls guys", the ones with the skills to "program" are more expensive, and have more of a work load. It doesn't make sense to have them pulling and landing wire, or installing...
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    Evacuate to 30+"hg, break the valve off in the...

    Evacuate to 30+"hg, break the valve off in the open position, and puncture them.
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    I guess its a good thing the outside wall is...

    I guess its a good thing the outside wall is double brick then!! LOL!!
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    Just saw your conversation with RD. Welcome to...

    Just saw your conversation with RD.

    Welcome to the site! You'll get it figured out pretty quick. Just read the rules sections, if you're confused.

    This site is corporate owned, so some that...
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