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  1. #1
    Join Date
    Jul 2004
    Location
    pa/de
    Posts
    19
    How long can one reasonably expect a recip compressor to last compared to a scroll??

  2. #2
    Depends n a lot of things but given the same conditions a recip will outlive a scroll.

  3. #3
    Join Date
    Nov 2002
    Location
    emerald city, sc
    Posts
    1,469
    Originally posted by fat eddy
    Depends n a lot of things but given the same conditions a recip will outlive a scroll.
    why ? inquiring minds wanna know
    i wanted to put a picture here

  4. #4
    They are a better design with less tolerances to work with,

    PS Scroll is not new technology been around for almost a century they just could not get it to work and still have trouble with it.

    Its only on the market because it does not re-expand compressed vapor, so it is more efficeint but not more durable

  5. #5
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    Oh boy...here we go again

  6. #6
    Hey Swamp,

    I think they all know better than to go against me,I can't say that I know how it feels to be on the wrong side.Its something that I just don't have much experience at .

    I can only imagine that it must be aggravating,disappointing and immensely unbarable for them.

    It probably leaves them with a feeling of remorse and anxiety leading to endless hours of reevaluating the way they look at things in the field,only to realize that they really don't understand a whole lot of this stuff.

    [Edited by fat eddy on 02-26-2005 at 06:31 PM]

  7. #7
    Join Date
    Sep 2002
    Posts
    3,708
    Oh stop!! You have my sides hurting.I know this to be fact,you sure are not shy when it come to tooting your own
    horn.

  8. #8
    Join Date
    Jul 2004
    Location
    pa/de
    Posts
    19

    Mmm....

    But why do units with scrolls have 10 year warrenties and recips only 5 year??

  9. #9
    Join Date
    Apr 2004
    Posts
    7,680
    I personally thing eddy is wrong too in this case but dont being warranty into it, thats marketing and has nothing to do with reliability in an of itself.

    Now I for one thing a scroll can handle liquid much better, it's sump has more capacity to handle liquid and acts as accumulator in a small way, it may get noisy but a flimsy suction valve (you will notice many scroll mfg's dont require a cch and starting components are not required as often). Granted they dont like a vacuum while operating but flooding is much more likely. I also feel that all things being equal in proper operation, a scroll is quieter. Since this is the residential section, I assume we are talking hermtics and not including semi's or open drives as I prefer being able to repair them then replace them. Scrolls do indeed have closer tolerances which you may see as a liability but it also has alot to do with efficiency. Scrolls tolerances are based on heavier materials not light weight materials used in the head of a recip (valves and pistons). Also Scrolls generaly include a check system to prevent refrigerant on the head at start up.

    Listen, all compressors require several things to last and as long as either has them, they will both last a long time.
    Motor Cooling, lubrication, proper application and voltage to name a few. Subtract any one and the compressor's life is reduced.


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