Quote:
Originally Posted by cabmando
You can pretty much figure they'll replace the line sets when going from 22 to Puron. If you're going from a standard drive to a variable speed indoor and outdoor, the only way to obtain the maximum efficiency is to have the duct system designed for the variable speed system. Anything short of a duct redesign and you don't get full efficiency.
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What is different in the duct design for a VSD system versus a single stage?