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Thread: Watercooled VRF

  1. 04-07-2020, 03:34 PM #1
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    Watercooled VRF

    New heat recovery unit. 8 indoor units.












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  3. 04-07-2020, 03:39 PM #2
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  4. 04-07-2020, 05:39 PM #3
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    Ground water?
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  5. 04-07-2020, 05:49 PM #4
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    Geofield with heat exchanger


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  6. 04-07-2020, 06:02 PM #5
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    Trane/Mitsubishi heat recovery unit. VRF


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  7. 04-07-2020, 10:33 PM #6
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    Quote Originally Posted by gravity View Post
    Trane/Mitsubishi heat recovery unit. VRF


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    Size of the equipment?
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  8. 04-07-2020, 10:45 PM #7
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    96,000 btu condenser

    4- 6,000btu ducted
    1, 8,000btu ducted
    3, 15,000btu 4way cassettes


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  9. 04-07-2020, 10:52 PM #8
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    Sweet, one of the new collaboration units from Mitsu.
    Hoping it goes better then Trane/Samsung did.
    A bunch of the schools down here are doing similar things with water source VRF.
    “I haven’t failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison

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  10. 04-07-2020, 11:02 PM #9
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    Its a Mitsubishi with a trane sticker. Trane and Mitsubishi are doing great things together


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  11. 04-07-2020, 11:03 PM #10
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    Yup, that’s how the Trane-Sung units were. Peel off the Samsung logo and put a Trane one in its place. Except they didn’t do great things together.
    “I haven’t failed. I’ve just found 10,000 ways that won’t work.” - Thomas Edison

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  12. 04-07-2020, 11:11 PM #11
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    Here is our training center myself and others put together.


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    Likes jbhenergy, sammyray liked this post.
  14. 04-08-2020, 12:08 AM #12
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    Looks nice. Have you had any problems with the white linesets leaking from formicary corrosion? I have read some have had problems and it seems sometimes the foam is acidic.
    Makes me leery of using it which is a shame because it looks so good.

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  15. 04-08-2020, 06:44 AM #13
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    Quote Originally Posted by R600a View Post
    Looks nice. Have you had any problems with the white linesets leaking from formicary corrosion? I have read some have had problems and it seems sometimes the foam is acidic.
    Makes me leery of using it which is a shame because it looks so good.

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    No. But, the tubing had a foul smell while purging N2. Almost like a carcinogen smell. Hope we don't have issues


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  16. 04-08-2020, 03:55 PM #14
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    Looks like a fun project. I went to an old class on this type system about 10 years ago. Surely I would want a refresher before tackling it now?
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  17. 04-08-2020, 04:05 PM #15
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    Its all the same. The central controller has changed and they've come out with some ERV/HRV


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  18. 04-10-2020, 10:27 AM #16
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    Nice work!!

    Is the training center at your shop?
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  19. 04-10-2020, 06:25 PM #17
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    Quote Originally Posted by steelersfan1 View Post
    Nice work!!

    Is the training center at your shop?
    Yes


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  20. 04-14-2020, 03:32 PM #18
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    Very nice! Nice to see a DP switch across the unit, I wish everyone did this.
    "It's not that I'm smart, it's that I stay with the problem longer”
    Albert Einstein
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  21. 04-28-2020, 01:26 PM #19
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    I am a big fan of watercooled units. Whats the flow rate on that one?
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  22. 04-28-2020, 03:57 PM #20
    coolcoil
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    Just out of curiosity, how thick is the insulation on the line sets? We've been having an internal debate about the value of insulation on the vapor line during heating mode.
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