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  1. #1
    Join Date
    Mar 2015
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    How care for Split AC unit with Aluminum Coil

    Does it need to be covered from the rain and water drippings? Washed regularly to protect from corrosion? Any tip to extend the life of the aluminum coil?

  2. #2
    Join Date
    Sep 2002
    Posts
    18,332
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    It's like a vehicle. Yes; they are designed to be outside in the weather.

    But they seem to do better if they are kept in a garage or under cover.

    Washing with fresh water is a good idea. A few times a year is OK. Although if you live near the ocean or a chemical plant then maybe every week would be more appropriate.

    Covering the TOP of the unit in the non-cooling season to keep out debris is generally a good thing. Do not cover the entire unit all the way to the bottom - air flow though it will keep it dryer and that is a good thing.

    PHM
    --------





    Quote Originally Posted by waruna01 View Post
    Does it need to be covered from the rain and water drippings? Washed regularly to protect from corrosion? Any tip to extend the life of the aluminum coil?
    PHM
    --------
    The conventional view serves to protect us from the painful job of thinking.

  3. #3
    Join Date
    Mar 2015
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    You mentioned washing with fresh water - is tap water okay? does the chlorine and other chemicals in tap water harmful to the aluminum coil? Also, I live about a mile from the ocean. Does that mean it needs to be washed every week?



    Quote Originally Posted by Poodle Head Mikey View Post
    It's like a vehicle. Yes; they are designed to be outside in the weather.

    But they seem to do better if they are kept in a garage or under cover.

    Washing with fresh water is a good idea. A few times a year is OK. Although if you live near the ocean or a chemical plant then maybe every week would be more appropriate.

    Covering the TOP of the unit in the non-cooling season to keep out debris is generally a good thing. Do not cover the entire unit all the way to the bottom - air flow though it will keep it dryer and that is a good thing.

    PHM
    --------

  4. #4
    Join Date
    Dec 2015
    Location
    San Antonio, TX
    Posts
    10
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    Yes aluminum is susceptible to galvanic corrosion. so this property affect the AC performance and lifespan very significantly but regular cleaning of coils can extend the life to its regular span. Due to these corrosion, a non-conducting layer is formed over the coils, which reduces its heat exchange capacity. Today many modern technologies have been developed to protect the coils against corrosion and thus increase the life of ACs. (Tip: Look for corrosion protection techniques while buying AC such as coating over the coils etc)

  5. #5
    Join Date
    Mar 2015
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    Does tap water mixed with chlorine corrodes the coil if washed regularly?

  6. #6
    Join Date
    Oct 2009
    Location
    Florida
    Posts
    186
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    no

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