Completed with ac 3 on 2010,2023 and 2010 all gas horizontal in attic, 2023 cooling great at this time of check up, found 2 ton 2 zone 80% furnace inside a foam attic which it should be a 90% also found compresor start up amps a bit high and 2010 with 2 zone has a restricted evaporator coil with very high start up amps from compressor. Giving the option to do all preventative repairs, unit upgrade. Left options for repair and replacement. Customer is not interested on doing anything at this time.