How do you install AC evaporator in Hyundai Santa Fe?

To install the AC evaporator in a Hyundai Santa Fe, first disconnect the battery and drain the refrigerant from the AC system. Remove the dashboard and the HVAC assembly to access the evaporator core. Disconnect the evaporator lines and unbolt the evaporator from its housing, then replace it with the new unit. Reassemble the HVAC system, reconnect the refrigerant lines, and recharge the AC system before reconnecting the battery.