power line 55 and connection duct 57 are drawn out along the side surface of the indoor unit after the lid is removed the direction in which the l shaped connection duct 57 is attached to ventilation device 56 is changed as shown in fig2 more specifically connection duct 57 as attached to ventilation device 56 is turned has its end positioned outside cabinet 52 along the side surface of the indoor unit then a relay duct or the like is connected to the end and led to tubing hole 66 fig2 is an exploded view showing a weathertight cover used in the air conditioner according to the fifth embodiment of the invention and fig2 is a view showing how pipes are fixed in the weathertight cover in fig2 weathertight cover 70 provided on the outdoor side of tubing hole 66 will be described in conjunction with fig2 and 22 weathertight cover 70 is attached to cover the opening on the outdoor side of tubing hole 66 in order to protect the indoor side of tubing hole 66 against the adverse effect of weather in fig2 weathertight cover 70 includes a base frame 61 attached to the outdoor side opening of tubing hole 66 two engaging claws 62 formed in base frame 61 an opening 63 formed in base frame 61 to pass through various pipes.