Specifications include, but are not limited to: 7 ½ Ton Air Conditioning Unit Convert 7 ½ ton unit from an R-11 to an R410-A refrigerant system. Demolition and removal/disposal of existing condensing unit, coil, and refrigerant. Replacement of Trane evaporator unit. Replacement of Trane condensing unit. Include as needed – wiring and controls, piping, fittings, hardware, insulation, materials, etc. Evacuate and charge system. Start-up and function test equipment. 12 ½ Ton Air Conditioning Unit Convert 12 ½ ton unit from an R-11 to an R410-A refrigerant system. Demolition and removal/disposal of existing condensing unit, coil, and refrigerant. Replacement of Trane evaporator unit. Replacement of Trane condensing unit. Include as needed – wiring and controls, piping, fittings, hardware, insulation, materials, etc. Evacuate and charge system. Start-up and function test equipment.