Patent ID: 8701431

Claim:
An air conditioner comprising: an indoor device installed at indoor; an outdoor device connected to the indoor device using a refrigerant pipe; a ventilation unit for exchanging heat of outdoor air and indoor air while ventilating indoor air and outdoor air; and a guidance duct for communicating the ventilation unit and a plurality of air inhalation portions of the outdoor device in order to guide indoor air exhausted from the ventilation unit to the air inhalation portion formed in the outdoor device, wherein the ventilation unit comprises: a ventilation heat exchanger for exchanging heat of indoor air and outdoor air; a ventilation fan for sending indoor air to the outdoor device after passing through the ventilation heat exchanger and for sending outdoor air to indoor after passing through the ventilation heat exchanger; and a ventilation case having the ventilation heat exchanger and the ventilation fan therein, wherein the ventilation case has an outdoor air inhalation duct connection part to which an outdoor air inhalation duct is connected, an outdoor air exhaust duct connection part to which an outdoor air exhaust duct is connected, an indoor air inhalation duct connection part to which an indoor air inhalation duct is connected, and a plurality of guidance duct connection parts to which the guidance duct is connected, wherein the guidance duct connects with one of the plurality of guidance duct connection parts, wherein the outdoor device comprises a base, left and right side panels installed at an upper side of the base, and a top panel installed at an upper side of the left and right side panels, at least one of the left and right side panels includes a plurality of openings forming the plurality of air inhalation portions formed at different heights, and the guidance duct has a fastening portion wherein the guidance duct is adjusted to fit any one of the plurality of air inhalation portions.