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  1. #14
    Join Date
    Jun 2010
    Location
    Miami
    Posts
    258
    IMHO we aren't getting very far until we have evaporators in each zone. At this point nobody is willing to spend what it takes to make home systems truly efficent.

  2. #15
    Join Date
    Feb 2006
    Location
    Float'N Vally, MS
    Posts
    1,870
    Quote Originally Posted by Russ57 View Post
    IMHO we aren't getting very far until we have evaporators in each zone. At this point nobody is willing to spend what it takes to make home systems truly efficent.
    Mini-split, Halcyon and city-multi type systems.
    I agree they are pricey. Would have one in our home, but the wife thinks the cassette is butt ugly!


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  3. #16
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    Quote Originally Posted by Russ57 View Post
    IMHO we aren't getting very far until we have evaporators in each zone. At this point nobody is willing to spend what it takes to make home systems truly efficent.
    What good is efficiency if the gains are only incremental. Plus in the us, most of the population lives in either a mild climate (west coast) or a climate that's heating dominant and for the most part natural gas dominates.

    I think you have to take an evolutionary approach and let comfort drive demand for high end equipment and allow energy prices to dictate to a certain extent what SEER equipment consumers will purchase.

  4. #17
    Join Date
    Jun 2012
    Location
    Northern NV
    Posts
    155
    Anyone one installing servicing the variable speed condensing units? Nordyne, Carrier, Trane etc.. I want to get some feedback from folks who have had hands on to know the bad, good or jus plain ugly.....

    thanx!

  5. #18
    Join Date
    Dec 2010
    Location
    Down by the river
    Posts
    1,687
    I just started up some Valent rtu's that had a solenoid as abypass between discharge and suction to load the compressor. Worked well. As with anything like this its controlling it that get tricky
    It's hard to stop a Trane. but I have made one helluva living keeping them going.

  6. #19
    Join Date
    Feb 2012
    Location
    central Florida
    Posts
    154
    I have not done one in a couple of years(IQ drive).it is a great technology.The tsat is the heart of the system controlling the compressor and fan speeds.It also had electronic txv units.The claim was it could go 118% of its rating.We took out a 5 ton and put in a 4 ton.It ran well and customer said when I went back to pm it that it kept up in the summer.Better than his original.

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