Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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  1. Just wanted to say that the books are still...

    Just wanted to say that the books are still available.
  2. Replies
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    knothole - Most people (such as myself) are more...

    knothole - Most people (such as myself) are more comfortable dealing with the refrigerant charge under cooling mode conditions - that's the only reason i'd resort to this method. However, as...
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    I'm oldschool, so please forgive me...Personally,...

    I'm oldschool, so please forgive me...Personally, i'd put the system in cooling mode and block the condenser coil with a piece of plastic sheeting (or disconnect the condenser fan motor). On a day...
  4. which recovery unit do you recommend?

    My refrigerant recovery unit is 15 years old now, and i'm thinking about getting a new one. For ease of carrying (I have fibromyalgia) and also ease on the wallet, which recovery unit go you...
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    I don't work on ovens, but have the following...

    I don't work on ovens, but have the following information if it would be of some help to you.

    Electric motors come in a variety of ratings. There's industrial, commercial, severe, washdown, and...
  6. Bigtime - Yes, that's exactly what i'll do...

    Bigtime - Yes, that's exactly what i'll do tomorrow. I really hope that's where it's at, because if it's in the line set, it's not good...My wife shudders from the thought of me having to put holes...
  7. Have you thought about using a line voltage...

    Have you thought about using a line voltage thermostat - like Johnson Controls? Don't know if it would be cheaper than your switch, but will definitely work.
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    I keep seeing more and more of these being used...

    I keep seeing more and more of these being used in all kinds of projects, but haven't used one personally. I'd be more inclined to use a cheap programmable logic controller (like direct logic) with...
  9. In my experience, a temperature difference of...

    In my experience, a temperature difference of around 2 degrees will always be present when installing a single zoned system in a 2 story house. Especially if it's on a concrete slab. Although alot...
  10. tlb - yes, it's r-22 DavyB - I installed it. ...

    tlb - yes, it's r-22

    DavyB - I installed it.

    mgenius33 - I call on my 23 years of hands on experience to troubleshoot problems, and although a vacuum can be compromised by refrigerant vapor...
  11. I've used electronic leak detectors in the past,...

    I've used electronic leak detectors in the past, but haven't had much success with them. Although very extreme (and lots more work), this is the most effective method I know. (I've never used the...
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    I love that ad, too. Especially when he calls him...

    I love that ad, too. Especially when he calls him a cry baby at the end....
  13. What's the most extreme method you've used to find a leak in a split system?

    Last spring I put my downstairs heat pump in cooling mode for the first time of the year since it was a pretty warm day, and after a few minutes discovered that there was a problem with it. So, I...
  14. Books for the Alabama HVAC Contractor's Exam

    I have them, and am willing to sell the entire lot for $500. They were purchased new for $638 from Lawson State Technical College in Birmingham, and are in excellent shape.
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    technut, please help me understand for...

    technut, please help me understand for clarification. A drier in an ammonia system? Perhaps this is a much smaller system than i'm accustomed to working on....
    All of the NH3 systems i've worked on...
  16. I'm new, but am a Master Industrial Electrician....

    I'm new, but am a Master Industrial Electrician. With that being said, i'll try my best to help you.

    Some electronic output devices that utilize a triac for outputting voltage to a load can't...
  17. Ok, thanks for the heads up on that...

    Ok, thanks for the heads up on that...
  18. Me too, I can't wait to get to the pro forums,...

    Me too, I can't wait to get to the pro forums, where I can both learn from others, and share what knowledge I already have (if needed by someone)
  19. Replies
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    Good question...i'm just hoping to get mine by...

    Good question...i'm just hoping to get mine by replying to others' legitimate posts
  20. Replies
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    Being a new member myself, and away from the HVAC...

    Being a new member myself, and away from the HVAC field for a while too - i'm hoping to get caught up a bit. Things have sure changed since my first day of ac/ref class in 1983. Haha
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    boilers, electrical

    Mike,

    When I went to trade school (which was a long time ago), neither were taught very much either. However, being in an industrial maintenance environment for the last 24 years has thankfully...
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    Cool, dude...I'm new too, and am from...

    Cool, dude...I'm new too, and am from Russellville!
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    school

    I'd like to add that my son is currently enrolled in school for hvac (19 yrs. old), and I hope he finishes with a degree in it. It would be great if he'd know something when he graduated, too. I can...
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