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  1. #1
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    Self Install of Air Con Unit

    I'm wondering how difficult or easy it is to install an air conditioning unity myself. Do I need to hire an engineer or is it as easy as plugging it into an outlet? The unit is a Mitsubishi Electric Mr. Slim. I'm at my girlfriend's farm house, and there isn't anyone in the village who has experience installing an air con unit. There is a guy in town though, but if it isn't too difficult or life threatening then I'd like to know if I can do it myself. Thanks.

  2. #2
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    If you think that you can do it , what is stopping you?

    If a Thai can do it, then a monkey can do it, so have at er.

    Long as you have a way to solder the copper pipes for the unit to get the freon from the comp. unit to the evap unit.

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    By the time you have bought all the bits and bobs including soldering kit plus whatever is needed for filling and pressurizing the freon gas, I'd pay the little Baht it takes to get Thai aircon specialists to do the job for far less, usually 1000B near CMai.

  4. #4
    Thailand Expat jandajoy's Avatar
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    Quote Originally Posted by jingjoke
    I'd pay the little Baht it takes to get Thai aircon specialists to do the job for far less, usually 1000B near CMai.
    Agreed, get a techie to do it. We're way out bush and it cost me 2500 to get a bloke from Chiang Rai, 2 hours away. Worth every penny though. He did a good job and offered a years guarantee and 2 free services.

  5. #5
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    Get a technician. If you fuck it up the warranty is voided.

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    Whenever we buy some appliance, they always offer to install it (usually free unless a lot of extra work is involved)

    Aircons are not that easy, unless you are Blackgang or a monkey, so better to get them to do it. I believe the joints are brazed, not soldered, so you need special gas equipment

    then if something does go wrong, it will be their fault for sure
    I have reported your post

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    The Pikey Hunter
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    Yeah. Installation is usually free or 2K max in my experience.

    I wouldn't bother attempting it myself.

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    Quote Originally Posted by DrAndy
    Aircons are not that easy, unless you are Blackgang or a monkey, so better to get them to do it. I believe the joints are brazed, not soldered, so you need special gas equipment
    Yes, But blackgang has been to school and trained on Reefer repair and instillation and has done lots of large units and shipboard freezers and commercial units.
    And the joints are silver soldered and it does take accet./Propane Oxy. gas torch.

    Some units come pre charged and all you have to do is hook up the threaded fittings and it will puncture the seal when tightened and release the gas and the unit will work great.
    Siam TV sent guys out to install mine when I moved here and it cost me 2500 total for the service.

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    see, even Blackgang uses the well trained labour force on offer

    the pre-charged units sound good

  10. #10
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    Quote Originally Posted by jingjoke
    By the time you have bought all the bits and bobs including soldering kit plus whatever is needed for filling and pressurizing the freon gas,
    I don't know what bits and bobs are. But the copper fittings are damm expensive!
    I didn't know you have to pressurize refrigerant? This must be new.

    Quote Originally Posted by blackgang
    And the joints are silver soldered and it does take accet./Propane Oxy. gas torch.
    As BG says, you must use sil-foss or for steel to copper joints silver solder.

    Quote Originally Posted by blackgang
    Some units come pre charged and all you have to do is hook up the threaded fittings and it will puncture the seal when tightened and release the gas and the unit will work great.
    Just make sure that the line sets are evacuated also apply light coat of refrigerant oil on the flare connections to prevent galling! Otherwise you may loose your charge. As far as the split systems go its good to add a liquid line filter and suction/discharge taps, sight glass. Usually a suction tap off the kingvalve of the outdoor unit is only provided.

    Quote Originally Posted by DrAndy
    see, even Blackgang uses the well trained labour force on offer the pre-charged units sound good
    I believe all units come pre-charged or have a nitrogen charge so as not to contaminate the oil.

    It sounds like alot of variables involved. If you don't have any idea what your getting into don't do it you may end up hurting yourself or worse! If I missed anything it's just because I'm keeping it light.
    All people have photographic memories, the problem is most people don't have film!

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    Thanks guys for the response, I'm paying a guy 1500 baht to come install the sucker tomorrow....Things sound too difficult for me is there anything I should make sure the air con installer does? I know for sure I want to make sure he installs the ground...anything else?

    --matt

  12. #12
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    The ground for your remote control?

  13. #13
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    Quote Originally Posted by dirtydog View Post
    The ground for your remote control?
    On the Mr. Slim instruction guide, it appears to have a place to connect the live, neutral, and ground wires both to the outdoor compressor and the indoor unit. <shrug>

  14. #14
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    ^There is probably a good reason for why the manufacturer wants you to connect a
    ground wire..

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