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  1. #1
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    VRF mechanical code conflict



    Come Jan 1, 2015 it will be very difficult/impossible to install VRF equipment in New York City due to a change in the Mechanical code. No refrigerant lines can pass through a space that can be occupied, connected to a system with more than 10 pounds of refrigerant. This is due to their interpretation of Ashrae 15 safety guidelines. Is anyone out there seeing something like this ?



  2. #2
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    Re: VRF mechanical code conflict

    Water chillers it is then !

  3. #3
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    Re: VRF mechanical code conflict

    Hi Ralph

    Can't say I'm familiar with Ashrae 15, as we work to different standards over here - BS EN 378.
    Do you have a link to the code so we can have a look and comment?
    I'm back on the Pale

  4. #4
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    Re: VRF mechanical code conflict

    I think that you may be misinterpreting the standard.

    It seems that you are now limited to 10lbs/1000sq.ft. so you need to calculate your total charge and see if it can leak into the smallest area that the leak may occur in.

    Info gleaned from here..

    https://www.google.co.uk/url?sa=t&so...U8NMkyS15YvVbA


    Last edited by Brian_UK; 06-11-2014 at 09:10 PM.
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  5. #5
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    Re: VRF mechanical code conflict

    Quote Originally Posted by frank View Post
    Hi Ralph

    Can't say I'm familiar with Ashrae 15, as we work to different standards over here - BS EN 378.
    Do you have a link to the code so we can have a look and comment?
    I don't have a link but I do have a copy. Can I send to you and you post ?

  6. #6
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    Re: VRF mechanical code conflict

    I have seen this trane publication. From what I understand Ashrae 15 does not take into o account the refrigerant is heavier than air. I would like to send you what I have but don't know where to send it to or where to post it.

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