nstalled Carrier furnace and Payne condenser. Installed Honeywell T6 thermostat. Built new supply and return plenums and sealed all connections with mastic. Replaced secondary drain pan. Rebuilt and insulated primary and secondary drain lines. Cleared and verified primary drain operation. Installed SS2 and SS3 safety float switches. Pressure tested and pulled a vacuum on the copper line set. Replaced disconnect and whip for condenser. Ran low voltage in 1/2-inch Seal-Tite. Weighed in charge to meet manufacturers specifications.