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  1. #1
    Join Date
    Sep 2014
    Posts
    24
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    york water chiller

    I have a customer who has a york YLAA0070SE17xCASDTXABLXCXX44XXXXXXHXXXSAXXXXX&XXXX X1BXXAXX

    serial --2FWM007085

    70 ton unit.

    could this work for a Co2 extraction machine that needs about 40 ton at 18 degree

  2. #2
    Join Date
    Oct 2011
    Location
    Harrisburg, NC
    Posts
    1,042
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    Nope. Don’t do it.

    Had a customer that tried to do basically the same thing. Buy a surplus big water chiller meant for HVAC and “just turn it down”.

    It will never work right and be the biggest headache you’ve ever had in your life.

    R410 is not made for those temps.

    Take it from experience.


    Sent from my iPhone using Tapatalk

    I can't fix it if it won't stay broke..

  3. #3
    Join Date
    Jul 2000
    Location
    Guayaquil, EC
    Posts
    13,501
    Post Likes
    Copeland R410A scrolls are rated down in the range you would be running at and the capacity loss from say, 40°F SST to 18°F SST looks like about 40% or so. I'm not familiar with what York uses for scroll or how they apply them, but it may be worth looking into.

    One concern I would have though.... Is this unit going to be used to condense CO2? At what pressure? ....or would you be using a different evaporator altogether?

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