My 20 year old Bryant heat pump finally died (dead short in compressor) and I had the contractor who had serviced the unit for the past 15 years install a new Bryant Evolution unit (heat pump and fan coil). I got a few quotes from other contractors and my installer was not the lowest but in the ballpark. I had always found the contractor's service folks to be very professional and competent but the guys he sent to install the new unit were folks I had never seen before (and the kind of people you would not let in your house under most circumstances). A few of the little things the guys did during the install (types of supports used for the line set, not wet rags around downstream tubing during brazing, etc.) don't seem to be consistent with the unit's installation manual they left. Now, I'm worried that the unit wasn't installed correctly, particularly after numerous posts in this forum stress that installation is probably more important than the equipment. The unit has been operating (on heat) for a couple of days and seems to work but I have no way of knowing whether it is operating efficiently. Are there tests that qualified service personnel can perform to assess the adequacy of the installation? I'm paying cash for the unit and install and haven't yet paid or been asked to pay for that matter. I'd really appreciate advice before I fork over the thousands. Thanks.