[RFI] Quiet HVAC

Carl Foster carlfoster at cactuscomm.net
Wed Dec 2 16:36:52 EST 2015

I have two separate American Standard heat pumps and they have no measurable

One has a variable compressor and indoor fan, the other is a two-speed
compressor and a variable indoor fan. I had my receivers on when the fired
the units up. Absolutely silent on the air. 

Carl KB7AZ  Tucson, AZ

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