I am looking to replace a heat pump on a rental house I own. An AC contractor has given me what sounds like a reasonable proposal for a 2.5 ton Nutone FT4BD 13 SEER 8 HSFP unit. First question is are there any red flags to be aware of with that unit? Net search and forum search here doesn't turn anything up but I just want to be sure.
Second question.... the proposal offers the option of replacing the lineset for another $. The old system is R-22 and the proposal suggests lineset change for reasons of mineral oil residues not being fully removed. Sound logical?
Final question..... I'm a carpenter and don't know much about AC units but I recently took a bunch of copper, aluminum, brass to a salvage yard and collected around $250. Isn't there a substantial amount of copper in my old AC unit? Is it reasonable/sensible to ask that they leave the old unit (and lineset if I have it replaced) so I can salvage the metals? Is that common or just weird?
Thanks for all opinions!