Installed Carrier gas system. Installed Ecobee Pro thermostat. Built and installed new supply and return plenums and sealed all connections with mastic air lock. Relocated filter dryer to attic. Installed new secondary drain pan. Rebuilt and insulated drain line. Installed SS3 safety float switch. Cleared drain and verified operation. Replaced disconnect and whip to outdoor system. Pressure tested line set and pulled a vacuum. Weighed in additional refrigerant to meet manufacturers specifications.