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  1. #14
    Join Date
    Aug 2002
    Location
    Orange County CA
    Posts
    1,084
    We are just finishing a 134/C02/Glycol store. Started up fairly easy , runs great so far.
    Here in SoCal , there are few stores that do not have EMS. And most new stores are getting electronic TXVs or EPRs.

    I think the U.S. as a whole is behind Europe , but we are coming on strong. USA!USA!USA!

  2. #15
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,675
    Quote Originally Posted by NedFlanders View Post
    I think the U.S. as a whole is behind Europe , but we are coming on strong. USA!USA!USA!
    We are MILES behind Europe. Not even running the same race, IMO.

    We have the technology and the innovation to catch up, but I don't think that most have the drive or the desire to do so.

  3. #16
    Join Date
    Sep 2005
    Location
    florida
    Posts
    5,512
    Quote Originally Posted by jpsmith1cm View Post
    We are MILES behind Europe. Not even running the same race, IMO.

    We have the technology and the innovation to catch up, but I don't think that most have the drive or the desire to do so.


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  4. #17
    Join Date
    Aug 2010
    Posts
    2,807
    When the EPA imposes GWP taxes like they do in Australia, I think there will be that "drive".
    It's $23 AUD per CO2 equivalent ton. That comes out to be about $42 USD/lb in excise tax for R404A.

    Look at how far behind the US is in residential split system compared to Japan and Korea.
    They've been using electronic VSD inverter for over a decade for compressor and fans.

    The only way to vary AC motor speed is to change # of poles, slip it or use a VFD. (i.e. 2 pole = 3465 rpm, 4 pole = 1725 rpm, 6 pole = 1200rpm). The variable speed blower motor has always relied on slipping away to change the speed. It wasn't until the last few years that BLDC (ECM) was put into use in small to reduce this loss.

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