Installed new 4-ton Carrier heat pump system. Installed new Ecobee Lite 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-Tite. Replaced both supply and return plenums and sealed with a mastic airlock. Replaced the RFG in the hallway. Charged system to factory spec and performed a benchmark. System is working properly at time of departure.