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  1. #1
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    Default Disconnect question

    Is there an issue with the / a disconnect attached to the /a condenser cabinet or FAU cabinet?

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  2. #2
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    Default Re: Disconnect question

    Depends on where it is attached to the cabinet.

    It is not allowed to be attached to any panel which is a removable service panel, starting with the actual service area cover, and includes any other panel removal for service - what panels would you remove to replace the coil if you were going to replace it?

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  3. #3
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    Default Re: Disconnect question

    Quote Originally Posted by Jerry Peck View Post
    Depends on where it is attached to the cabinet.

    It is not allowed to be attached to any panel which is a removable service panel, starting with the actual service area cover, and includes any other panel removal for service - what panels would you remove to replace the coil if you were going to replace it?
    Hey Jerry, you have the NEC section for that handy? I'm just asking out of curiosity.

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  4. #4
    Roger Frazee's Avatar
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    Default Re: Disconnect question

    Quote Originally Posted by Marc M View Post
    Hey Jerry, you have the NEC section for that handy? I'm just asking out of curiosity.
    Hi Mark

    NEC 2011

    440.14 Location. Disconnecting means shall be located
    within sight from and readily accessible from the air conditioning
    or refrigerating equipment. The disconnecting
    means shall be permitted to be installed on or within
    the air-conditioning or refrigerating equipment.
    The disconnecting means shall not be located on panels
    that are designed to allow access to the air-conditioning or
    refrigeration equipment or to obscure the equipment nameplate(
    s).



  5. #5
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    Default Re: Disconnect question

    Quote Originally Posted by Jerry Peck View Post
    Depends on where it is attached to the cabinet.

    It is not allowed to be attached to any panel which is a removable service panel, starting with the actual service area cover, and includes any other panel removal for service - what panels would you remove to replace the coil if you were going to replace it?
    Quote Originally Posted by Roger Frazee View Post
    Hi Mark

    NEC 2011

    440.14 Location. Disconnecting means shall be located
    within sight from and readily accessible from the air conditioning
    or refrigerating equipment. The disconnecting
    means shall be permitted to be installed on or within
    the air-conditioning or refrigerating equipment.
    The disconnecting means shall not be located on panels
    that are designed to allow access to the air-conditioning or
    refrigeration equipment or to obscure the equipment nameplate(
    s).
    Fantastic Roger..thanks so much.

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  6. #6
    Join Date
    Oct 2009
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    michigan
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    Default Re: Disconnect question

    Most RTU's have locations that will allow access w/o interference.
    Most residential ground unit types do not. IME

    The FMC fed unit in the previous post pic doesn't appear to have a grounding conductor. I run across this all the freaking time. A unit is replaced using the existing whip w/o an EGC.
    In Michigan at least, FMC and even LT-FMC is no longer considered a EGC regardless of length.
    Where is the installation in question located?

    Ditto on 'don't cover the nameplate' Jerry.
    Further rant.... don't place the A/C condenser if front of the stinking disconnect!


  7. #7
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    Default Re: Disconnect question

    Here's a pic of that disco.

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  8. #8
    Roger Frazee's Avatar
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    Default Re: Disconnect question

    Quote Originally Posted by Marc M View Post
    Here's a pic of that disco.
    NO EGC ran inside the FMC as Bob said , I'd recommend one. Also big knockout missing that needs to be closed. I once took the access cover off one of these on a rooftop at Ford and was staring one of the biggest paper wasp nests I've ever seen face to face. About the time I went the wasps went and the fight was on....

    I'm in a hurray this morning Marc so I'll let Bob expand on the EGC reasoning vs just using the FMC and another issue appears to be the lock ring in the upper right.


  9. #9
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    Default Re: Disconnect question

    Quote Originally Posted by bob smit View Post
    ...Ditto on 'don't cover the nameplate' Jerry...
    Oh, you mean like this? I could just make out the manufacture date at the top. Nothing else.

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