Air conditioner

摘要

An air conditioner with a refrigerant pipe (2) from an indoor unit (1) led out outdoors through a hole (4) of a building wall and connected to an outdoor unit (3). The air conditioner comprises: an air duct (23, 24) inserted through the hole of the building wall; a ventilation fan unit (21, 22) connected to the air duct; and a control means (46) for controlling the operation of the fan unit. The control means reduces the amount of ventilated air in a sleep operation mode lower than that in a normal operation mode.