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  1. #1
    Join Date
    Dec 2008
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    Seattle WA
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    Is VRF going the way of VVT?

    Just a conversation starter here - please review: https://vrfrejected.org/
    then discuss.

  2. #2
    Join Date
    Feb 2006
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    Float'N Vally, MS
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    The ones we have been involved with have been mostly bulletproof.
    But we are anal about copper, hanging and vacuum.
    That being said anything man makes will break, doesn't matter who's name is on the box.
    Life is too short, Behappy!
    TFMM

  3. #3
    Join Date
    Aug 2002
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    Southold, NY
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    As soon as I read:

    Before you build, learn what the Department of Defense, building owners, and others have learned through their experience with VRF systems.

    Then:

    Hydronics Industry ALLIANCE

    I give it Zero Credit.

    Like the Copper Institute preaching the end of PEX!

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  5. #4
    Join Date
    Jun 2014
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    Dover, DE
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    All that is just mostly gibberish from VRFs competition.
    VRF is gaining speed.
    Does everyone like it? No, but it’s carving out a huge chunk of the market and those that know how to work on them are pulling in tons of work.
    I havent failed. Ive just found 10,000 ways that wont work. - Thomas Edison

    Its not whether you get knocked down, its whether you get up. - Vince Lombardi

    "In this house we obey the laws of thermodynamics" - Homer Simpson

    Local 486

  6. #5
    Join Date
    Aug 2002
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    Quote Originally Posted by rider77 View Post
    All that is just mostly gibberish from VRFs competition.
    VRF is gaining speed.
    Does everyone like it? No, but it’s carving out a huge chunk of the market and those that know how to work on them are pulling in tons of work.
    Technically VRF has been used in the Supermarket industry for what 40 - 50 years so!

  7. #6
    Join Date
    Oct 2011
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    Chicagoland Area
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    Quote Originally Posted by pecmsg View Post
    Technically VRF has been used in the Supermarket industry for what 40 - 50 years so!
    So has hydronics using brine as the medium.
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  8. #7
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    Aug 2002
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    Quote Originally Posted by 2sac View Post
    So has hydronics using brine as the medium.

  9. #8
    Join Date
    Oct 2016
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    ENERGY COSTS
    VRF systems use 15 times more horsepower to move BTUs with refrigerant vs. water. How much more will VRF really cost?

    I stopped reading when I got to this....its pure bs.

  10. #9
    Join Date
    Oct 2011
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    Chicagoland Area
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    I brought up something similar in another post about efficiency. As a consumer, if the cost negates the savings, there is no efficiency.
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  11. #10
    Join Date
    Oct 2016
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    It’s more efficient to push refrigerant around than to cool water and push it around. Vrf is not a home run, but when they insinuate it uses 15 times more horsepower, they are being sneaky, and fos.

  12. #11
    Join Date
    May 2013
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    Had an idea for a VRF invention the other day...

    One big downside to VRF, you are locked into that manufacturer for the life of the equipment. What if there was decoder device that enables different brands of IDUs communicate with the CUs and branch boxes? If one brand is jerking you around, install a different brands IDU.

    Or maybe a standard communication language used amongst different brands? Of course, zero chance of this happening, manufacturers would not like implementing this.

    For the record, I'm a huge VRF fan and enjoy working on them. But leak finding and proprietary parts can be frustrating.

  13. #12
    Join Date
    Mar 2015
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    Medford, N.Y.
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    Does this include VRV? LOL.

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  15. #13
    Join Date
    Mar 2015
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    Medford, N.Y.
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    What way did VVT go?

    I went to several Carrier VVT classes a few years back.

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