Installed 5-ton Carrier gas system. Installed Ecobee Pro thermostat. Installed new supply and return plenums. Installed hard start kit. Rebuilt and insulated primary and secondary drain lines. Replaced secondary drain pan. Installed SS2 and SS3 safety float switches. Cleared drain and verified operation. Pressure tested with nitrogen and pulled a vacuum on the line set. Weighed in charge to meet manufacturers specifications.