Installed Payne 3.5 ton heatpump and Ecobee thermostat. Installed filter base. Transitioned to existing supply and sealed all connections with mastic air lock. Installed plywood overlay. Reinsulated suction line. Rebuilt and insulated drain line. Cleared drain and verified operation. Removed old pad and leveled new one to the ground. Ran low voltage in 1/2 inch seal tite. Everything is working at completion of service.