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Thread: What's a good way to learn HVAC electronics/electricity?

  1. #21
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    Take an hvac electric fundamentals class at a community college or a trade school...They help...when i first started i didnt know squat about electricity...it helped me a whole bunch...and yes they teach about control voltage...
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  2. #22
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    best book I've seen for HVAC elec.

    http://search.barnesandnoble.com/Ele.../9781418042875
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  3. #23
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    I am a second year apprentice and what I found is Read, Read, and study, and more Reading works. You will feel like it does not make any sense until you get in front of a unit and get frustrated a few times. Each time the reading starts to click in slowly, and you start to understand. Schematics, and sequence of Operation is the key to troubleshooting a unit.

    Another thing that helps me is when I was doing change outs I would strip the old units of basic electrical parts. Transformer, relays, inducer motors, safety switches, sequencers, t-stat, and a plug off a old condensate pump, and some boxes of 3amp fuses. Take a piece of plywood and mount this stuff to it. Take some 18/8 wire and wire up your low voltage to simulate a working system. This will teach you the basics, and help you understand your reading.
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  4. #24
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    Quote Originally Posted by bzzline View Post
    Join the air force alot of low volt wirring and controls in weapons
    Yes, that's a good route too, I have fond memories of working for the Air Force (Canadian) on the radar chain. We all (SAC) must have done a good job, 'cause we're not speaking Russian today...
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  5. #25
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    I learned some stuff working on a 5 Megavolt Marx generator used in beam weapons research.
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  6. #26
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    Quote Originally Posted by garya505 View Post
    I learned some stuff working on a 5 Megavolt Marx generator used in beam weapons research.
    Well, I guess the "advanced" HVAC tech can use that kind of knowledge to troubleshoot one of those new up and coming nuclear heating devices...
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  7. #27
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    Quote Originally Posted by enb54 View Post
    Well, I guess the "advanced" HVAC tech can use that kind of knowledge to troubleshoot one of those new up and coming nuclear heating devices...
    Yeah, but it's difficult to find a meter to measure a couple of hundred kiloamps!
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  8. #28
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    Quote Originally Posted by garya505 View Post
    Yeah, but it's difficult to find a meter to measure a couple of hundred kiloamps!
    The proper shunt will do it, I just don't like the high energy particles that are flying about (they deflect the analog meter movement too much )...

    Am currently researching heat exchanger designs, and those ones in nuclear power plants are catching my eye...
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  9. #29
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    I would recommend a Radio Shack Electronics Learning Lab.
    The manuals are well made and teach you the basics with hands on parts. Plus you will make mistakes you have to fix. Later you can have someone else introduce errors for you.
    http://www.radioshack.com/product/in...uctId=3814337#

    Industrial Controls Engineer
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  10. #30
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    Quote Originally Posted by frugal View Post
    I would recommend a Radio Shack Electronics Learning Lab.
    The manuals are well made and teach you the basics with hands on parts. Plus you will make mistakes you have to fix. Later you can have someone else introduce errors for you.
    http://www.radioshack.com/product/in...uctId=3814337#

    Industrial Controls Engineer
    Yes, that is also an excellent and inexpensive way to learn about electricity/electronics. They are fairly sophisticated from what I can recall, bought one for a friend's nephew several years ago and it had a set of digital electronics projects/experiments also...
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  11. #31
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    sounds fun
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  12. #32
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    Google Navy manuals, they have some excellent electricity and electronics manuals and they are free to download.
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  13. #33
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    Twilly's skool of lectricity
    No Heat No Cool You need Action Fast
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  14. #34
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    Quote Originally Posted by 4inchCrescent View Post
    Hey guys,

    I get asked frequently by aspiring HVAC technicians and installers where they should go or what they should do to learn about electricity as it relates to HVAC equipment and controls. I've found that most books about wiring and electricity in general are a lot broader than what a beginning HVAC technician would need.

    What would you guys recommend as far as books, science kits, tutorials, interactive CD-Roms etc? How did you learn it?
    We had a thread about this in pro technical.

    Here you go.

    http://hvac-talk.com/vbb/showthread.php?t=692771
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
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  15. #35
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    Quote Originally Posted by enb54 View Post
    Well, I guess the "advanced" HVAC tech can use that kind of knowledge to troubleshoot one of those new up and coming nuclear heating devices...
    The Mr. Fusion Reactor needs no troubleshooting, as it has a self diagnostic routine that prevents an overload of the Flux Capacitor.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  16. #36
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    Quote Originally Posted by Twilly View Post
    Twilly's skool of lectricity
    That must be the one that teaches that electricity is smoke...once it comes out you can't put it back.
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  17. #37
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    good info
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  18. #38
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    I suggest along with the 'book learning'. Get an easy to use meter (fieldpiece HS 26, HS 35 or HS36) Find some scrap air handlers, condensing units, gaspacks, whatever you can get your hands on. Take the control compartments from these and the wiring diagrams if you can get them. Learn to do resistance readings on each component and learn what they do. Make yourself a 24 volt transformer you can plug in and practice energizing control components. Being familiar with the different devices and what they do really helped me to see 'the big picture' and understand this stuff on a deeper level. Good Luck!








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  19. #39
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    Quote Originally Posted by frugal View Post
    That must be the one that teaches that electricity is smoke...once it comes out you can't put it back.
    Each device has a fixed amount of smoke packaged into the device in the factory. US manufacturers could not be economically licensed to handle the smoke installation process by the EPA, so most devices are built and packed with smoke in Pacific Rim nations today.

    And now I must go and pick up my wife, Morgan Fairchild......
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  20. #40
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    Jkate

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

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