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  1. #1
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    12,000 BTU Expander



    Hello.

    For a 12,000 BTU unit, is a capillary tube appropriate? If not, what type of expander is recommended for that?


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  2. #2
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    Re: 12,000 BTU Expander

    Rotary Compressor:

    DISPLACEMENT 21.6 cm3/rev

    R22 Refrigerant.

    Compression Ration: 8

    PRESSURE DIFFERENCE AT
    START-UP: There should be none.

    If you need anything else from the datasheet, tell me.
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  3. #3
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    Re: 12,000 BTU Expander

    Either or whats the unit appliction, air con? refrigeration? medium or low temp? Room.? Display????
    Cheers
    Stu
    Tool's ? check ! Condom's ? check !
    If you can't fix it , f*ck it !!!

  4. #4
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    Re: 12,000 BTU Expander

    Quote Originally Posted by stufus View Post
    Either or whats the unit appliction, air con? refrigeration? medium or low temp? Room.? Display????
    Cheers
    Stu
    Room air conditioning. It will be used to chill water using a plain tubing evaporator, and then the chilled water will be circulated through a heat exchanger indoors that cools the air.
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  5. #5
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    Re: 12,000 BTU Expander

    is this feeding 1 indoor heat exchanger? as a 12000btu unit capacity is 3.5kw,typically sized to cool a room of approx 40 sq mtr-so your trying to cool more than 1 room then ur compressor is gonna be chugging its nuts off!
    go for tev as this will maintain superheat at different loads and give better control-even better go for an electronic expansion valve

  6. #6
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    Re: 12,000 BTU Expander

    It is for one room.

    TEV means thermostatic expansion valve, right? :S

    I remember asking for an expansion valve over the phone at the local refrigeration and A/C store. They quoted a price of a few thousand dollars (Jamaican) and didn't really ask for much information about the unit. Hopefully the only information they need is that I want a thermostatic expansion valve for a 12,000 BTU air conditioner? Or is there more I should confirm?
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  7. #7
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    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: 12,000 BTU Expander

    You have been given this link before...
    http://www.sporlanonline.com/literature.shtml

    May I suggest that you read some of it.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  8. #8
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    Re: 12,000 BTU Expander

    Alright. When I called the store again they said the capillary tubing they have is for refrigerators, not air conditioners, and they didn't have the expansion valve for 12,000 BTU units, and ATL said they have capillary tubes for Panasonic units, but no expansion valve. They were like "what? Expansion valve for a 12,000 BTU?". There aren't any other expander options are there? Or will I be forced to pinch the tube and call that the expander like I did last time?
    Last edited by Kompulsa; 03-12-2011 at 08:16 PM.
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  9. #9
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  10. #10
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    Re: 12,000 BTU Expander

    Kompulsa, this video may be helpful. http://www.youtube.com/watch?v=zWLYcJKHgB8
    To the optimist, the glass is half full. To the pessimist, the glass is half empty.

  11. #11
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    Re: 12,000 BTU Expander

    Thank you, I will watch that video in a moment. I have called quite a few stores and none of them have the capillary tube for 12,000 BTU units (in general, which is weird). How could that be.
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  12. #12
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    Re: 12,000 BTU Expander

    just get a tev, it gives better control over varying loads, theres info on how to fit them, just remember to insulate the bulb,and mount the bulb lower than the tev head

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