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    Lanceo2243's Avatar
    Lanceo2243 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 30, 2010, 08:22 AM
    Wire , breakers ,and disconnects
    I have a 4 and a 5 ton unit (heat pump) on top of an industrial building. I need 2 #8s and a #10 ground correct? What size disconnect and breakers will I need for these two units and is this wire what I need for the heat pump also?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Dec 30, 2010, 08:58 AM
    You need to read the manufacturers label on the unit(s), looking for Minimum Circuit Amps and Maximum Overcurrent Protection Device.

    Get back with those values and we can help from there.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #3

    Dec 30, 2010, 12:32 PM
    Quote Originally Posted by Lanceo2243 View Post
    I have a 4 and a 5 ton unit (heat pump) on top of an industrial building. I need 2 #8s and a #10 ground correct? What size disconnect and breakers will I need for these two units and is this wire what I need for the heat pump also?
    Industrial building?

    Call an electrician. He'll know exactly what wire and breakers to use.
    If you have to ask questions like this over the internet you obviously should not be doing electrical work in a commercial/industrial setting.

    Sorry, just my professional opinion.
    aguywithfeet's Avatar
    aguywithfeet Posts: 29, Reputation: 3
    New Member
    		  
    #4

    Jan 4, 2011, 04:16 PM
    Comment on stanfortyman's post
    Isn't that a big Liabilty, possibly illegal? I'm pretty sure here, commercial buildings HAVE to hire licensed professionals.
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