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  1. #1
    Join Date
    Oct 2010
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    MONTREAL QUEBEC-CANADA
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    1,840

    Default mechanical disconnect switch

    At an inspection there were several protective devices, circuit-lock's - manual motor controllers as disconnects. Not fuse breakers I am use to seeing uses as a means for/of mechanical HVAC disconnect.
    lock out.JPG

    Question; what protective equipment is required for HVAC equipment?

    Section 430.102, the controller in 430.102(A) and the motor in 430.102(B)
    2008 NEC. Section 430.102(B)(1) requires a disconnecting means for each motor, and it must be located in sight from the motor location and the driven machinery location. “Within Sight” is visible and not more than 50 ft from each other [Art. 100]. Or, the controller disconnecting means [430.102(A)] can serve as the disconnecting means for the motor if the disconnect is located in sight from the motor location [430.102(B)(2)]

    Question. Am I sparking up the wrong tree in the NEC?

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  2. #2
    Join Date
    Dec 2007
    Location
    Osceola, AR
    Posts
    310

    Default Re: mechanical disconnect switch

    I would not have an issue with this as a disconnecting means. It is listed and labeled as a disconnecting means and looks to be suitable for location.

    Alton Darty
    ATN Services, LLC
    www.arinspections.com

  3. #3
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,840

    Default Re: mechanical disconnect switch

    Quote Originally Posted by Alton Darty View Post
    I would not have an issue with this as a disconnecting means. It is listed and labeled as a disconnecting means and looks to be suitable for location.
    Alton, thank you.
    I thought this was the case.

    I have never seen this type of disconnect before and thought I would be prudent to come here to ask you astute colleagues.

    What I find peculiar, it appears there are 2 lock-out/disconnects on the same circuit or, at least, it appears that way to me.

    Thanks.

    Robert Young's Montreal Home Inspection Services Inc.
    Call (514) 489-1887 or (514) 441-3732
    Our Motto; Putting information where you need it most, "In your hands.”

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