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  1. Replies
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    If the system was already in service, why are...

    If the system was already in service, why are adjustments needed now that the leak was repaired?
  2. Replies
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    They are having us back because we have helped...

    They are having us back because we have helped them stay off the public radr.
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    I am thankful every day that I don't do...

    I am thankful every day that I don't do residential.

    That said, if I did do it, I would not do ANY work on systems like that.
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    MOST of the time, when the detectors are IN the...

    MOST of the time, when the detectors are IN the units and not the ductwork, they are a factory installed option.

    I don't think System Sensor has a given useful lifespan for the detectors....
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    And what are "CMS policies?" There is a LU 420...

    And what are "CMS policies?"

    There is a LU 420 contractor in Philly called CMS. Any connection?
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    I would like to hear more on a couple of points....

    I would like to hear more on a couple of points.

    1) What company did the manger go and found himself?

    2) What are the "CMS policies?"
  7. Manager: "It's too hot in here!" Tech: "Your...

    Manager: "It's too hot in here!"

    Tech: "Your Surveyor system says it's satisfied"

    Manager: "Can you fix it?"

    Tech: "No, I can't fix stupid."
  8. Replies
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    Very true.

    Very true.
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    Well, that IS one of the issues. We don't yet...

    Well, that IS one of the issues. We don't yet know exactly what it is, but I do know that Carrier uses the orifice header in the vast majority of their packaged rooftop equipment.
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    Poll: Good morning, Bret and everyone!

    Good morning, Bret and everyone!
  11. Replies
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    Hellllllo...McFly.....!!!!!

    Hellllllo...McFly.....!!!!!
  12. Replies
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    Plugged orifice header. I had one that had...

    Plugged orifice header.

    I had one that had DOUBLE the charge in it to try and raise the suction temp above freezing. 40 SC, 50 SH.

    I had to get inside the top to cut out the old orifices and...
  13. Is there an electric fan in front of the...

    Is there an electric fan in front of the condenser? If not, you may need to add one. If I recall, my 1984 Supra, the Celica upgrade variant, had a fan there. Perhaps two. It's been a long time.
    ...
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    How about a model number then? We usually get...

    How about a model number then?

    We usually get that in the first post. Of course, if you have a newer model, where Carrier decided to make trouble for everyone, then yes, you could have a single...
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    Definitely sounds like you need a dealer tech.

    Definitely sounds like you need a dealer tech.
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    30 mins to make the diagnosis.

    30 mins to make the diagnosis.
  17. Replies
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    I am always amazed at the damage I see done to...

    I am always amazed at the damage I see done to conductors as a result of a pull.
  18. Replies
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    Did someone teach you how to properly clean a...

    Did someone teach you how to properly clean a unit like this?

    Did you raise the top?

    Did you separate the coil layers so you can access the built up dirt in between, the dirt that you can't see...
  19. Replies
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    While it is a maintenance item to clean sampling...

    While it is a maintenance item to clean sampling tubes (when they are accessible) it can indeed stir up particles that result in a trip of the detector.
  20. Replies
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    Poll: Good morning, Bret and everyone!

    Good morning, Bret and everyone!
  21. Is commercial only work available?

    Is commercial only work available?
  22. Replies
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    The problem is the age of the device. It is...

    The problem is the age of the device. It is beyond any reasonable expectation of service life.
  23. Replies
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    Actually, there a several well-defined "levels"...

    Actually, there a several well-defined "levels" of learning, and they are a part of the very exhaustive Fundamentals of Instruction course that every commercial pilot must complete in order to become...
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    ....and the answer is?

    ....and the answer is?
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    I would put the "nick in the wiring" phenomena...

    I would put the "nick in the wiring" phenomena under "highly unlikely," as a general point of causation.
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    That is correct. This is an open forum, and...

    That is correct. This is an open forum, and anyone will be able to find this because these posts are indexed by the search engines.
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    Are you the equipment owner or are you working as...

    Are you the equipment owner or are you working as an HVAC technician, and you are asking about this because no one at your company can help you?
  28. Replies
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    And over a braze joint....

    And over a braze joint....
  29. Replies
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    I think perhaps what you were hoping for is that...

    I think perhaps what you were hoping for is that this is a DIY site, and that we just have the rules for show.

    That is not the case.

    Having a good bit of electrical experience (and I can tell...
  30. Replies
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    Poll: Good morning, Bret and everyone!

    Good morning, Bret and everyone!
  31. Replies
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    Generally speaking, dirty ductwork is not...

    Generally speaking, dirty ductwork is not responsible for false trips, because the dirt in the ducts is stable. If it was not stable, it would not remain in the ductwork.
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    Man, that would throw me out of bed. I would...

    Man, that would throw me out of bed.

    I would have a tech put a sound blanket on it. I would also have the supply voltage and conductor size checked to make sure that during startup it is not...
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    In commercial, it's nothing but 22 in a 22 system.

    In commercial, it's nothing but 22 in a 22 system.
  34. Replies
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    Please don't bring up an old thread to promote a...

    Please don't bring up an old thread to promote a product.

    My sympathies to your brother.
  35. Yes. Unfortunately, a lot of guys won't be...

    Yes.

    Unfortunately, a lot of guys won't be looking at that screen. On my fluke, continuity is triggered at about 20 ohms and less. So, a compressor with a 50 ohm short to ground would be missed,...
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    Do you have a clip you can link to on youtube?

    Do you have a clip you can link to on youtube?
  37. A short can't get shorter than zero ohms. True. ...

    A short can't get shorter than zero ohms. True.


    However, if you use the continuity function and you don't hear the beep, you can still have a grounded compressor.
  38. Anyone who actually saves money with a 97% rated...

    Anyone who actually saves money with a 97% rated furnace should post back on this site and describe the savings, and how many years it took to achieve the savings. It would be the first I have heard...
  39. This is a DIY post, isn't it........ High duct...

    This is a DIY post, isn't it........

    High duct static will kill an ecm motor. If you want to pay for one, be my guest.
  40. While you should have no "continuity" from any...

    While you should have no "continuity" from any terminal to the compressor shell, I often remind techs to use the resistance function of the meter for these tests, and not the continuity function....
  41. If you have less than 30 megohms to ground...

    If you have less than 30 megohms to ground (compressor shell) you have a bad compressor. At that point, winding resistances are meaningless.

    Of course, all readings for a ground are taken with all...
  42. It is toast.

    It is toast.
  43. Replies
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    I believe this thread is in violation of our DIY...

    I believe this thread is in violation of our DIY rules.

    I have asked the moderators to move it to AOP residential.
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    Been a while since I've seen one of those, LOL!!!!

    Been a while since I've seen one of those, LOL!!!!
  45. Replies
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    The boss calls and says that an account rep from...

    The boss calls and says that an account rep from XYZ needs to put some 22 in his home system. He has a jug and gauges. Can you swing by there on your way home from church?

    Sure, I can do that.
  46. Replies
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    Poll: Good morning, Bret and everyone! Wow!

    Good morning, Bret and everyone!


    Wow!
  47. Replies
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    Best advice: Replace a 13 year old detector....

    Best advice:

    Replace a 13 year old detector. DO NOT replace the head.

    The detector was install by Lennox. It's an option.

    Replace it one wire at a time.
  48. In future, it isn't considered good form to...

    In future, it isn't considered good form to resurrect an old thread and then post on it.

    If you have a question or comment about some aspect of additives, start your own thread, and own it.
  49. Thread: Capacitor

    by timebuilder
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    Which begs the question: why would a Pro...

    Which begs the question:

    why would a Pro member put a technical post in a non-pro area, where it can be indexed by search engines and accessed by the general public....?
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    If the unit (RTU) is more than 5 years old and I...

    If the unit (RTU) is more than 5 years old and I get a nuisance trip, I replace the smoke detector with the same model. 13 years is a LONG time without having to replace a smoke detector.

    I take...
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