Terror out existing rooftop condenser fly off with crane flying new one with crane I brought it up fly 70 gallons of roof paint to the top of roof with crane hair out air handler on stand coffin box replace call tin box replace air handler Cayenne high voltage low voltage drain line copper Thai in coffin box put in new surge protector at disconnect on roof will need to return to put in Elite light on both units nitrogen test 400 PSI vacuum down to 500 Micron start up everything working in perfect condition