AIR CONDITIONER

PURPOSE:To enable a wireless remote control switch and a wire remote control switch to be easily selected and changed by a method wherein a casing mechanism which can be removably attached and replaceable from an external side of the device and in case of the wireless remote control switch, all the required members are installed inside the device. CONSTITUTION:In the case of a wireless remote control switch, this switch is comprised of an indoor device 1, a light receiving cartridge 2, a device side connection connector 3, a cartridge side connection connector 4 and a wireless remote control switch 5. The light receiving cartridge 2 has a structure in which it may be removably attached to the indoor device 1 from external side without using any tool or the like in one-touch operation. In case of a normal wire remote control switch, this switch is comprised of the indoor device 1, the device side connection connector 3, the light receiving cartridge 6, the cartridge side connection connector 7 and a wire remote control switch 8. The light receiving cartridge 6 has a structure in which is can be removably attached to the indoor device 1 from external side in one touching operation.