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  1. #1
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    Using same suppy for 2 A/C Systems



    Can anyone help ? Is it feasible to use the same power supply for 2 Air conditioning systems (both dc inverters) The reason is, there is no available supply for an additional 3.5kw A/C, but there is a cassette system right next to where they want the 3.5kw system. If the supply was taken from mains in, on cassette and fed to a protected mains switch for the smaller unit, would this cause a problem.....Would appreciate anyones thoughts.

    Thanks
    Giles



  2. #2
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    Re: Using same suppy for 2 A/C Systems

    giles , no matter how many times you start a thread the answer you get will still be the same = sedgy

  3. #3
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    Re: Using same suppy for 2 A/C Systems

    This message hasn't been deleted by frank.

    Mostly found in Oxfordshire, UK :)

  4. #4
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    Re: Using same suppy for 2 A/C Systems

    Giles,
    It might be possible to convert the existing supply to a "ring main" supply for both units but not as you describe it.

    Your best option would be to get a suitable qualified sparky onboard to design and sort that part of the job.



    .

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    Re: Using same suppy for 2 A/C Systems

    Thanks for your reply....The cassette has it's own 32amp dedicated supply, so i think a ring main is not the answer. I am quite aware that each system requires it's own dedicated supply & ethically the question is not the way to go, in an ideal world, Just wanted to know why, electrically this canott be done ? Any thoughts of would it affect the inverters in any way ? Anyone tried it ?.....This is pure "conjecture" by the way.

    Giles

  6. #6
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    Re: Using same suppy for 2 A/C Systems

    if its the incoming power supply and the cable and braker are sized corectl to take the load and you install a braker at each unit i do not think you will have any problems

  7. #7
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    Re: Using same suppy for 2 A/C Systems

    I suspect you could take a 10a fused spur off from the 32a supply at the isolator to feed the 3.5 unit no problem.

  8. #8
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    Re: Using same suppy for 2 A/C Systems

    no available supply- you mean no spare ways in the board
    get a 40a breaker and fit a 2 way board locally and fit 2 breakers and run a new supply. or get a a bigger board- this message hasnt been deleted either yet! haha

    Quote Originally Posted by Giles View Post
    Can anyone help ? Is it feasible to use the same power supply for 2 Air conditioning systems (both dc inverters) The reason is, there is no available supply for an additional 3.5kw A/C, but there is a cassette system right next to where they want the 3.5kw system. If the supply was taken from mains in, on cassette and fed to a protected mains switch for the smaller unit, would this cause a problem.....Would appreciate anyones thoughts.

    Thanks
    Giles

  9. #9
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    Re: Using same suppy for 2 A/C Systems

    Quote Originally Posted by install monkey View Post
    no available supply- you mean no spare ways in the board
    get a 40a breaker and fit a 2 way board locally and fit 2 breakers and run a new supply. or get a a bigger board- this message hasnt been deleted either yet! haha
    That's the way I would do it to if you can get hold of a 40A breaker, 6mm cable clipped direct can carry 47 amps to a new 2 way board then fit 32amp and 10 amp breaker, then size cable to length and installation method to your two condensers.

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