Installed new 4.0 Ton Heat Pump Package unit (14 S.E.E.R) Air conditioning system. As part of the install recovered refrigerant and removed original equipment. Installed new return air plenum stand, media filter, air handler, heater, heat pump condenser, float switch and thermostat and tie downs. Wired in electrical. Transitioned new air handler into existing supply plenum. Brazed refrigerant lines and pressure tested system. Leak checked. Evacuated system. opened isolation valves and started system. Checked operation in heat, cool and fan modes. Started system and operating to manufactures specifications. Registered for equipment warranty and left permit with homeowner for purposes of inspection.