Tear out old unit stand replace new stand new unit tie into existing plenum new heat shield technically fasting tear out old condenser replace pad block pad tied down to one condenser tied down four corners hook up existing copper hook up new high voltage line vacuum nitrogen test 400 PSI vacuum down to 500 microns start up added 1 lb 13 1/2 oz of 410A Freon unit is cooling to factory specs Drano clean drain line flushed out unit is draining Cooling customers paid and happy job complete