Installed new 3-ton Carrier gas furnace system. Installed new Ecobee Pro thermostat. Rebuilt and insulated condensate drain line. Added SS2 and SS3 safety float switches. Installed new filter dryer, pressure tested with dry nitrogen and pulled a vacuum on copper line set. Replaced the condenser pad. Replaced the disconnect and ran the low voltage in seal tight. Replaced both supply and return plenums and sealed with a mastic airlock. Added a new Aprilaire 1210 media filter. Charged system to factory specs.