Installed Payne furnace. Installed new filter base, installed new plywood overlay. Installed new supply plenum. Re used thermostats and zoning equipment. Installed new gas flex line. Rebuilt and insulated primary drain line. Cleared drain and verified operation. Installed SS2 safety switch. Replaced disconnect and whip at outdoor condensing unit. Pressure tested lines and pulled a vacuum. Weighed in additional refrigerant as per manufacturer data sheet. Kept low voltage in 1/2 seal tite. Tested system operation. Everything is operational at completion of service.