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Thread: Even still more generator questions

  1. #11
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    Larry, here is Southwires chart for SER.. scroll down on the pdf

    https://www.mysouthwire.com/medias/s...4083371038.pdf
    They say I shot a man named Gray and took his wife to Italy
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  2. #12
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    Quote Originally Posted by romex jockey View Post
    Which i suppose is why the last few i installed had no mention of isolating control circuitry ....i'm still not sold on why it's done?

    ~RJ~
    The Honeywell is a Generac with a different paint job. The control wire can be THWN # 14 N1 N2 carry 120vac for the utility sensing. T1 is carrying 120vac for the charger ( picks up neutral in generator ) and 192 & 0 sends 12vdc back to the ATS for switching.
    Organized people are people that are just too lazy to look for their stuff

  3. #13
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    Perhaps TC-ER can do be used for the control

  4. #14
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    Quote Originally Posted by ceb58 View Post
    The Honeywell is a Generac with a different paint job. The control wire can be THWN # 14 N1 N2 carry 120vac for the utility sensing. T1 is carrying 120vac for the charger ( picks up neutral in generator ) and 192 & 0 sends 12vdc back to the ATS for switching.
    well i'm used to that ceb, URD & THWN for UG, SER & UF if not ~RJ~

  5. #15
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    Well, we ran them yesterday. 2-2-2-4 al SER for the feeder and 1/2" LNFC for the six #18 wires.

    I will need to sleeve the generator end of the SER. I'm thinking an LB and a larger size of LNFC.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  6. #16
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    IMO...the T1 wire should run with the feeder because the neutral for the battery charger is with the feeder...300.3(B)

  7. #17
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    Quote Originally Posted by shortcircuit2 View Post
    IMO...the T1 wire should run with the feeder because the neutral for the battery charger is with the feeder...300.3(B)
    That may no longer be the case, as there are six control wires: black, red, white, blue, and two yellows.

    In any case, it's in and wired, and I'm not changing it.

    Added: Okay, I see that the blue supplies the charger, but the white is a control wire, so the feeder neutral must do double-duty.
    Last edited by LarryFine; 05-09-19 at 09:19 PM.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  8. #18
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    Generac has the "all in one" cable that is code compliant and preferred by most installers. It is approved for direct burial and has correct color coding for the system interconnection between transfer and generator.

  9. #19
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    The white wire in the control cable is for the 23 wire which is grounded (-12V) in the event that the unit tells the transfer switch to move to the standby (generator) position and has nothing to do with grounding the 120V T1 to the charger. The charger gets its neutral from the main neutral in the feeder to the transfer switch.

    I run a large Generator specific help forum (not just Generac) and don't get on here too often anymore. If you want more help, feel free to post there. https://gentekpower.com/forums

  10. #20
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    Quote Originally Posted by shortcircuit2 View Post
    Generac has the "all in one" cable that is code compliant and preferred by most installers. It is approved for direct burial and has correct color coding for the system interconnection between transfer and generator.
    The cable you're referring to is ONLY code compliant in areas that have adopted the 2017 NEC. If they haven't, it's required to be installed in a conduit the entire length. The cable has a TC-ER-JP rating, however TC isn't allowed through homes except with a new exception in the 2017 NEC for generators and other appliances needing power and controls in 1 cable (like mini split systems).

    See article 336

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