Old 01-13-2008, 09:51 AM
Senior MemberCaptains Club Member
Join Date: Jun 2005
Location: shelby twp MI
Posts: 1,783
Default RE: Mis-matching HVAC system (replacing outside unit without touching inside)

N D H - 1/13/2008 8:31 AM

The new units have thermostatic expansion valves on the indoor coils as opposed to a fixed orifice on
the older units.
I'm willing to bet with it being a 12 SEER that it already has a TXV. Unit isn't that old. I am surprised it has a scroll compressor as opposed to a piston though.

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