Installed Carrier furnace and condenser. Installed Ecobee Pro thermostat. Removed platform that system was on and replaced with ¾” plywood. Ran line set higher off the ground and supported to the foundation. Ran new low voltage wire to the condenser in EMT. Replaced disconnect and whip for condenser. Ran new low voltage wire to the thermostat. Rebuilt and insulated condensate drain lines. Cleared, treated and verified drain operation. Built new supply plenums to transition to existing trunkline. Replaced a section of collapsed return trunk line with flex duct. Pressure tested line set with nitrogen and pulled a vacuum. Weighed in charge to meet manufacturers specifications.