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Thread: wire schematics

  1. #1
    Join Date
    Aug 2004
    Location
    Howell MI
    Posts
    420
    Is there any web site that offers wire diagrams. Its a Lennox air handler and lennox heat unit with carrier rooftop.

    I had the model number started with a C. I'll stop by and get the number again.

    Some techs affro enginered it we got there and it was a cluster of wire new wire abbondened wires (we think).
    We almost condemned the unit and installed a new roof top
    Hire Me....

    Benny

  2. #2
    Join Date
    Jun 2004
    Location
    St Paul, minnesota
    Posts
    1,245
    go to davenet.com you must have an active account with lennox & know your account # when you log on. Then you can download IOM manuals, wiring diagrams, & engineering manuals for any lennox product current production or obsolete productions.

  3. #3
    Join Date
    Jan 2004
    Posts
    1,176
    And Lennox wiring diagrams suck, I don't know if I have seen worse.

  4. #4

    Talking

    Originally posted by acjourneyman
    And Lennox wiring diagrams suck, I don't know if I have seen worse.
    Mammoth comes to mind.

  5. #5
    Join Date
    Aug 2004
    Location
    Howell MI
    Posts
    420

    ???????

    No Replys ?

    Please help
    Hire Me....

    Benny

  6. #6
    Join Date
    Aug 2004
    Location
    Minneapolis
    Posts
    2
    Benny, I don't think you should be working on equipment like that if
    you can't read a diagram. How would you know if it was wired correctly
    or not.

  7. #7
    Join Date
    Jan 2004
    Posts
    1,176
    I have to object! I am a chiller tech and served an apprenticeship in the IBEW with a controls contractor and I can't read Lennox wiring diagrams very easily.WHy don't they do ladder diagrams like everyone else instead of plastering a mural on the side of there stuff.They are confusing to follow and I only see a lennox about every other year so don't even want to put the effort into reading them.

  8. #8
    Join Date
    Aug 2004
    Location
    Minneapolis
    Posts
    2
    Every manufacturer has their own concept and design. The service engineer has to "speak" all of the languages of ALL equipment.
    Once you have learned the logic behind their individual approach,
    you can fix it. Only when one knows how a system is SUPPOSED to
    operate, can one responsibly troubleshoot it. Basically, everything is
    about the same anyway. You know, POWER to the disconnect, LINE
    voltage to the transformer and front side of contactor, LOW voltage to
    the thermostat or other control, LOW voltage through a variety of limits-
    pressure controls and other safety of proving devices and THEN on to
    the coil on the contactor, the solonoid on the pilot valve or any other of
    a million different devices that can be controled.
    Learn to do it all, or don't do it at all. That's what the customer expects
    from you. The customer probably can't read any diagram, Lennox, Carrier, York, Goodman, Trane, McQuay.

  9. #9
    Join Date
    Jan 2004
    Location
    Fort Worth, TX
    Posts
    204
    Yeah........I came right out of school, being considered an expert. I knew everything about every piece of equipment that was ever made. There is not one schematic out there that even slightly slows me down.

    SOUND SILLY.............Well of course it does! People, get off it. When your fellow techs,(beginners or seniors),
    comes with a question, there is no reason to make comments
    to frustrat them even more. These new tech are doing exactly what they should be doing, by finding a solution to a problem, instead of guessing. At one time I am pretty sure you were out in the field wondering what the hell something was or how something worked. Knowing everything is not only arrogant, but highly unlikely.

    Help your fellow tech out with problems. No need to beat their confidence down because you happen to know a little bit me more than him. 'Cause there is always someone else that knows more,(or think he does), that will make you look stupid!

    Be Kind to everyone

  10. #10
    Join Date
    Jan 2004
    Location
    Fort Worth, TX
    Posts
    204
    .

  11. #11
    Join Date
    Oct 2002
    Posts
    970
    Originally posted by superfittertech
    go to davenet.com you must have an active account with lennox & know your account # when you log on. Then you can download IOM manuals, wiring diagrams, & engineering manuals for any lennox product current production or obsolete productions.

    Does this website ever work? been trying for a week to visit

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