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Thread: Cooling compressor protection

  1. #1
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    Cooling compressor protection

    Is it ok just to put an on/off switch at a compressor rather than a local disconnect box that contains a breaker/fuses?
    Tony Shupenko, PE

  2. #2
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    Quote Originally Posted by tonype View Post
    Is it ok just to put an on/off switch at a compressor rather than a local disconnect box that contains a breaker/fuses?
    I think you are referring to a condensing unit? Then, yes, a non fusible switch is fine as long as the upstream OCPD is the correct size and type to meet the max OCPD and type on the data plate of the unit.

  3. #3
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    That would depend on the type of OCP the unit calls for.

    JAP>

  4. #4
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    woops.... texie beat me to it.

    JAP>

  5. #5
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    Please lord...... let there be a nameplate on this one....


    JAP>

  6. #6
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    Quote Originally Posted by jap View Post
    Please lord...... let there be a nameplate on this one....


    JAP>
    Says "Max fuse or ckt. bkr. fusible/coupe (sic) circuit (HACR per NEC) 15"
    Tony Shupenko, PE

  7. #7
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    Quote Originally Posted by jap View Post
    Please lord...... let there be a nameplate on this one....


    JAP>
    "Electricity is really just organized lightning." George Carlin


    Derek

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