The variable speed compressor heatpump that WF had at the dealer meeting last year (2011) was very quiet. It was sitting out in the open in a hallway. They would vary the compressor speed up and down and you could hardly tell that the unit was operating. I think that it was a three ton model.
I was told this past weekend that the Danfoss plant here in AR is gearing up production of their VS compressor (for WFI?).
It's too bad they wouldn't scale down the 'mag-lev' compressor they bought from Turbocor....not THAT'D be a winner !!!!!
"The quality you deserve is not expensive---it's priceless"