On Sun, 13 Feb 2011 00:53:50 -0500, you wrote:
>I attended a seminar on GeoThermal H&V yesterday pushing the Trane
>units. They use a variable speed fan that sounds like it may be
>controlled by pulse width modulation.
>I asked if they would guarantee no RFI and the salesman said he'd have
>to get back to me. He's coming out Friday to give me a quote, but they
>know I'm not interested in even trying it if they can not give me a
>written guarantee ahead of time.
>It seems like Trane came up on here a while back but I've been unable to
>find a reference to it.
Hi Roger- I have an American Standard by Trane outside package unit
with a variable speed inside blower. It is about 2 years old and is so
far noise free.
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